Abstract: A heat exchanger includes a main body portion and a cover. The main body portion includes a heat exchange core, a collecting pipe portion and a first mounting shell. The collecting pipe portion includes a first collecting pipe portion and a second collecting pipe portion. Both the first collecting pipe portion and the second collecting pipe portion are provided with mounting end plates. Two ends of the first mounting shell are hermetically connected to the mounting end plates by brazing. The first mounting shell encloses part of the heat exchange core in a circumferential direction. Two ends of the cover are hermetically connected to the mounting end plates by bonding. The cover and the first mounting shell are arranged in an enclosing manner in the circumferential direction. The heat exchanger improves stability and reliability. A manufacture method of the heat exchanger is also disclosed.

Abstract: The embodiments of the present disclosure provide a method for extracting xylose liquid and cellulose with high purity from corn straw. The method includes raw material screening, raw material preprocessing, alkali processing, acid hydrolysis, and gradient alkali processing. The embodiments of the present disclosure adopt a gradient selective refining method for extracting a high-purity xylose liquid and cellulose from the corn straw, so as to maximize the extraction of the xylose from the corn straw, and at the same time, to separate and extract a high-purity cellulose product from straw residue under a low-cost process processing.

Abstract: Disclosed is a preparation system and a preparation method for high-quality xylitol crystals. The preparation system comprises a blending tank, a heat exchanger, a decolorization tank, an ion exchange system, a microporous filter, a first evaporator, a first crystallization kettle, a first centrifuge, a fluidization drying bed, a xylitol dissolution tank, a second evaporator, a second crystallization kettle, a second centrifuge, a hot air drying tank, and a cold air fluidization bed sequentially connected through pipelines. Liquid outlet of the first centrifuge is connected with first inlet of the blending tank. Liquid outlet of the second centrifuge is connected with first inlet of the xylitol dissolution tank. The blending tank is provided with second inlet for receiving xylitol hydrogenation solution. The xylitol dissolution tank is provided with water inlet for pure water. The material output from a product outlet of the cold air fluidization bed is xylitol crystal product.

Abstract: An energy-storage device is provided in the disclosure. The energy-storage device includes an electrode assembly and a housing assembly. The housing assembly includes a housing and an electrolyte pipeline. The electrolyte pipeline and the electrode assembly are both mounted inside the housing. The electrolyte pipeline is located between the electrode assembly and the housing and includes an electrolyte inlet pipe and an electrolyte outlet pipe. The electrolyte inlet pipe is located at one side of the electrode assembly and in communication with an interior of the housing. The electrolyte outlet pipe is fixedly mounted to and in communication with the electrolyte inlet pipe. The electrolyte outlet pipe defines multiple electrolyte outlet holes that are arranged at intervals in sequence.

Abstract: An energy-storage apparatus, an energy-storage module, and an electricity-consumption device are disclosed. The energy-storage apparatus includes an end cover assembly, an electrode assembly, a partition member, a protection member, and a housing. The partition member defines a through-recess and a through-hole, and the through-recess and the through-hole penetrate through the partition member in a thickness direction of the partition member. The protection member defines a first accommodating cavity, the electrode assembly passes through the through-recess, and the electrode assembly is in sealing connection to a recess wall of the through-recess. The partition member is in sealing connection to a cavity wall of the first accommodating cavity, and separates the first accommodating cavity into a first accommodating sub-cavity and a second accommodating sub-cavity. The first accommodating sub-cavity is in communication with the second accommodating sub-cavity through the through-hole.

Abstract: Provided are an end cover assembly, a battery cell, a battery module, and an energy storage device. The end cover assembly includes a cover plate, an explosion-proof valve, a first electrode terminal, and a second electrode terminal. The cover plate has a first protrusion, at least one second protrusion, and at least one third protrusion. The first protrusion has a mounting hole, and the at least one second protrusion and the at least one third protrusion are arranged at two opposite sides of the first protrusion in a length direction of the cover plate, respectively. The explosion-proof valve is mounted in the mounting hole. The first electrode terminal and the second electrode terminal are arranged on the cover plate and spaced apart from each other.

Abstract: A heat exchanger includes a first collecting pipe, a number of heat exchange tubes and a partition plate. The heat exchange tubes are inserted into the first collecting pipe. By means of the partition plate, a first inner cavity of the first collecting pipe is divided into a first sub-cavity and a second sub-cavity. One end of each heat exchange tube is in communication with the first sub-cavity. In the process of a refrigerant entering the first collecting pipe, the refrigerant flows into the second sub-cavity firstly, and forms a severe turbulence effect after interacting with the heat exchange tubes inserted into the second sub-cavity. Then, the refrigerant flows into the first sub-cavity through holes provided in the partition plate, and then flows into the heat exchange tubes. As a result, the uniformity of the two-phase refrigerant distribution can be relatively improved.

Abstract: An energy-storage apparatus and an electricity-consumption device are disclosed. The energy-storage apparatus includes a housing, an electrode assembly, an end cover assembly, and a first connector. The end cover assembly includes a top cover and a lower plastic assembly. The lower plastic assembly is disposed between the top cover and the electrode assembly. The top cover includes a first stimulus-response member. The lower plastic assembly includes a first-lower-plastic-member body having a first surface and a second surface, a first recess recessed from the second surface to the first surface, and a first vent hole defined in a recess bottom-wall of the first recess and penetrates through the recess bottom-wall and the first surface. A part of the first recess is blocked by the first connector, and the rest of the first recess exposed beyond the first connector forms a vent passage in communication with the first vent hole.

Abstract: The embodiments of the present disclosure provide a method for extracting xylose liquid and cellulose with high purity from corn straw. The method includes raw material screening, raw material preprocessing, alkali processing, acid hydrolysis, and gradient alkali processing. The embodiments of the present disclosure adopt a gradient selective refining method for extracting a high-purity xylose liquid and cellulose from the corn straw, so as to maximize the extraction of the xylose from the corn straw, and at the same time, to separate and extract a high-purity cellulose product from straw residue under a low-cost process processing.

Abstract: The present disclosure provides a method for co-producing a xylitol and a caramel pigment. The method includes: transporting a raw material of a xylose mother liquid in a raw material tank to a filter for filtering impurities to obtain a filtered raw material of the xylose mother liquid, and transporting the filtered raw material of the xylose mother liquid to a nanofiltration membrane device to obtain a decolorized xylose mother liquid; transporting the decolorized xylose mother liquid to a first ion exchange device to obtain an ion exchange liquid; and transporting the ion exchange liquid to a chromatographic separation device and obtaining an extracted liquid and a raffinate liquid; performing a refined hydrogenation process on the extracted liquid through a refined hydrogenation assembly to obtain a crystal xylitol, and performing a browning reaction process on the raffinate liquid through a browning reaction assembly to obtain the caramel pigment.

Abstract: The present disclosure provides an energy storage apparatus and a power-consuming device. The energy storage apparatus includes an electrode assembly, a connector, and an end cover assembly. The end cover assembly includes a pole assembly, a top cover, a stimulus-response member, and an explosion-proof assembly. The pole assembly includes a metal block, where the metal block is electrically connected to the connector, and the metal block has a preset surface. The top cover is disposed at an interval with the preset surface of the metal block, where the top cover defines a through hole and an explosion-proof hole arranged at an interval with each other, and an orthographic projection of the through hole on the preset surface falls within a range of the preset surface.

Abstract: Disclosed is a preparation system and a preparation method for high-quality xylitol crystals. The preparation system comprises a blending tank, a heat exchanger, a decolorization tank, an ion exchange system, a microporous filter, a first evaporator, a first crystallization kettle, a first centrifuge, a fluidization drying bed, a xylitol dissolution tank, a second evaporator, a second crystallization kettle, a second centrifuge, a hot air drying tank, and a cold air fluidization bed sequentially connected through pipelines. Liquid outlet of the first centrifuge is connected with first inlet of the blending tank. Liquid outlet of the second centrifuge is connected with first inlet of the xylitol dissolution tank. The blending tank is provided with second inlet for receiving xylitol hydrogenation solution. The xylitol dissolution tank is provided with water inlet for pure water. The material output from a product outlet of the cold air fluidization bed is xylitol crystal product.

Abstract: The present disclosure provides a preparation system and a preparation method for xylitol crystals. In the preparation system, outlets of a first centrifuge are connected with an inlet of a hot air drying tank and an inlet of a primary mother liquor storage tank through pipelines, respectively. Outlets of a second centrifuge are connected with an inlet of a second fluidized bed dryer and an inlet of a secondary mother liquor storage tank through pipelines, respectively. An outlet of a dicrystalline sugar dissolution tank is connected with an inlet of a blending tank through pipeline. An outlet of a tricrystalline sugar dissolution tank is connected with the inlet of the primary mother liquor storage tank. The blending tank is provided with an inlet for a raw material of xylitol hydrogenation solution. An output of an outlet of a first fluidized bed dryer is prepared xylitol crystals.

Abstract: The present disclosure provides a system and a method for utilizing corn cobs to jointly produce a premium xylose and a high-end caramel pigment. The system includes a xylose preparation subsystem, an enzymatic hydrolysis subsystem, and a caramel pigment preparation subsystem that are connected to each other through pipelines. The xylose preparation subsystem includes a raw material tank, a pretreatment tank, an acid hydrolysis kettle, a plate and frame filter press device, a filtrate neutralization tank, a nanofiltration membrane separator, an electrodialysis separator, an evaporation concentration tank, a crystallization tank, a centrifugal separator, and a dryer that are connected in sequence through pipelines. The enzymatic hydrolysis subsystem includes a filter residue neutralization tank and an enzymatic hydrolysis reaction kettle connected through pipelines.

Abstract: The present disclosure discloses systems and methods for preparing compound crystals of erythritol and high-intensity sweeteners. The systems may comprise a fermentation liquid storage tank, a ceramic membrane filtration system, a nanofiltration system, a first evaporator, a first crystallization kettle, a first centrifuge, a sugar dissolution tank, a decolorization tank, an ion exchange column, a blending tank, a second evaporator, a second crystallization kettle, a second centrifuge, a hot-air drying tank, a fluidized drying bed, and a finished product tank sequentially connected through pipelines. The systems may further comprise a high-intensity sweetener storage tank, a primary mother liquor tank, and a secondary mother liquor tank. The finished product tank may store a prepared compound crystallization product of the erythritol and the high-intensity sweetener.

Abstract: An end cover assembly, an energy-storage apparatus, and an electricity-consumption device are provided. The end cover assembly is for an energy-storage apparatus and includes a top cover, a sealing cap, and an annular welding portion. The top cover has a first surface and further defines a liquid-injection hole extending through the first surface. The first surface includes a first sub-surface and a second sub-surface connected to the first sub-surface, the first sub-surface is around the liquid-injection hole, the second sub-surface is around a periphery of the first sub-surface, and roughness of the first sub-surface is greater than roughness of the second sub-surface. The sealing cap seals the liquid-injection hole and is connected to the top cover. The annular welding portion is located at a junction between the sealing cap and the top cover. The top cover is further provided with a first welding mark and a second welding mark.

Abstract: Provided are an energy storage apparatus and an electric device. The energy storage apparatus includes a support, a pole, a stimulus-response member, a connector, and a first insulation member. The support has a first side and a second side. The support has a mounting hole and a vent hole. The connector is located at the first side and includes first and second connection portions connected to each other. The first and second connection portions face towards each other after being folded. The first connection portion is connected to the pole, and the second connection portion is configured to be connected to a tab. The first insulation member is attached to the first connection portion and extends towards the vent hole. The vent hole is partially covered with the first insulation member in a thickness direction of the support, and at least partially uncovered with the first insulation member.

Abstract: An energy-storage apparatus and an electricity-consumption device are disclosed. The energy-storage apparatus includes a housing, an electrode assembly, an end cover assembly, and a first connector. The end cover assembly includes a top cover and a lower plastic assembly. The lower plastic assembly is disposed between the top cover and the electrode assembly. The top cover includes a first stimulus-response member. The lower plastic assembly includes a first-lower-plastic-member body having a first surface and a second surface, a first recess recessed from the second surface to the first surface, and a first vent hole defined in a recess bottom-wall of the first recess and penetrates through the recess bottom-wall and the first surface. A part of the first recess is blocked by the first connector, and the rest of the first recess exposed beyond the first connector forms a vent passage in communication with the first vent hole.

Abstract: An end cover assembly, an energy storage apparatus, and an electricity-consumption device are provided in the disclosure to improve a production yield. The end cover assembly includes a top cover, an upper plastic member, a conductive block, a terminal post, and a sealing member. A mounting hole of the top cover extends through the top cover in a thickness direction of the top cover. The upper plastic member is mounted to the top cover. A through hole of the upper plastic member extends through the upper plastic member in the thickness direction of the upper plastic member and is in communication with the mounting hole. The conductive block is mounted to the upper plastic member. A fitting hole of the conductive block extends through the conductive block in a thickness direction of the conductive block and is in communication with the through hole.

Abstract: Disclosed are an end cover assembly, an energy-storage device, and an electricity-consumption device. The end cover assembly includes an isolation member. A main body of the isolation member has a first surface and a second surface opposite the first surface, and the isolation member defines a through hole penetrating through both the first surface and the second surface. Each first protrusion portion on the first surface and each second protrusion portion on the second surface are spaced apart from the through hole. A conductive block defines multiple first blind holes and an assembly hole, and each first blind hole fits one first protrusion portion. A top cover defines multiple second blind holes and a mounting hole, and each second blind hole fits one second protrusion portion. A post body of the terminal post passes through the mounting hole, the through hole, and the assembly hole sequentially.