Abstract: A puller includes a first claw and a second claw arranged opposite to each other. The first claw includes a first pulling part, a first limiting part and a first connecting part. The first limiting part includes a first body part, a first notch part and a second notch part. The second claw includes a second pulling part, a second limiting part and a second connecting part. The second limiting part includes a second body part, a third notch part and a fourth notch part. A size of the second pulling part is smaller than or equal to a size of the second notch part.

Abstract: A fluid splitter, a fluid end, and a plunger pump are provided. The fluid splitter includes: a body having a shape of column and including a first end, a second end, and a side surface connecting the first end and the second end; a first opening, located at the side surface of the body; a first cavity, located at the first end; a first channel, communicated with the first opening and the first cavity, respectively, the first channel extending from the first opening to the first cavity and being configured to allow fluid to flow therethrough; a second opening, located at the side surface of the body; a second cavity, located at the second end; and a second channel, communicated with the second opening and the second cavity, respectively, the second channel extending from the second opening to the second cavity and being configured to allow fluid to flow therethrough.

Abstract: A cover, a fluid end and a plunger pump are provided. The cover includes: a body, the body being cylindrical, and the body including a first end, a second end, and a side surface connecting the first end and the second end; a main flow channel extending along an axis of the body; a plurality of subsidiary flow channels, each of the plurality of subsidiary flow channels being communicated with the main flow channel; a first opening, located at the first end and communicated with the main flow channel; and a plurality of second openings, located at the side surface of the body; each of the plurality of subsidiary flow channels being communicated with at least one of the plurality of second openings.

Abstract: A puller includes a first claw and a second claw arranged opposite to each other. The first claw includes a first pulling part, a first limiting part and a first connecting part. The first limiting part includes a first body part, a first notch part and a second notch part. The second claw includes a second pulling part, a second limiting part and a second connecting part. The second limiting part includes a second body part, a third notch part and a fourth notch part. A size of the second pulling part is smaller than or equal to a size of the second notch part.

Abstract: A plunger, a hydraulic end and a plunger pump are disclosed. The plunger includes a plunger body, the plunger body includes a flow channel; a first liquid inlet hole is located in the plunger body and passes through the sidewall of the plunger body; the plunger body includes a first end portion and a second end portion, a flow channel extends from the first end portion to the second end portion, a part of the flow channel close to the first end portion is closed, the flow channel extends to the second end portion and forms a first opening, the first liquid inlet hole is communicated with the flow channel, the first valve assembly is located at the first opening, and is configured to allow fluid to flow out from the flow channel at the first opening and prevent fluid from flowing back to the flow channel from outside.

Abstract: A fluid splitter, a fluid end, and a plunger pump are provided. The fluid splitter includes: a body having a shape of column and including a first end, a second end, and a side surface connecting the first end and the second end; a first opening, located at the side surface of the body; a first cavity, located at the first end; a first channel, communicated with the first opening and the first cavity, respectively, the first channel extending from the first opening to the first cavity and being configured to allow fluid to flow therethrough; a second opening, located at the side surface of the body; a second cavity, located at the second end; and a second channel, communicated with the second opening and the second cavity, respectively, the second channel extending from the second opening to the second cavity and being configured to allow fluid to flow therethrough.

Abstract: A method for synthesizing high-content NaY molecular sieves with kaolin sprayed microspheres includes adding functional components and deionized water into kaolin so as to be pulped into a mixed slurry. The slurry is sprayed into microspheres. The microspheres are calcined at a temperature between 700 and 1,000° C. and mixed with a directing agent for crystallization. The resultant solid is filtrated and washed with water and then dried to obtain a final in-situ crystallized product with high content of molecular sieves.

Abstract: A method for synthesizing high-content NaY molecular sieves with kaolin sprayed microspheres is provided, comprising that functional components and deionized water are added into the kaolin so as to be pulped mixed slurry, and the slurry is sprayed into microspheres, the sprayed microspheres are calcined at a temperature between 700 and 1,000° C. and the obtained is mixed up with directing agent for crystallization, the resultant solid is filtrated from mother liquid and washed by water. The functional components include structural agents, and the addition of the agents is about 2˜10 percent by mass of the kaolin; the structural agents are one or more of starch, graphite powder, and carboxymenthyl cellulose. Alternatively according to the present invention, one part of the sprayed microspheres with particle sizes of 20˜110 ?m is calcined at high temperature to get high-temperature calcined kaolin microspheres, while the other part is calcined at a low temperature to get meta kaolin microspheres.