13 results about "Plunger pump" patented technology

The invention discloses a skid-mounting full integration LNG and LCNG remote monitor unattended filling station, belongs to a liquefied or compressed gas supply system, and particularly relates to a skid-mounting full integration LNG and LCNG on-site substation. The skid-mounting full integration LNG and LCNG remote monitor unattended filling station comprises an LNG storage tank, a pump skid, a boost skid, a filling device and a control and monitor device which are installed on a skid body. The skid body is provided with an explosion-proof variable-frequency speed regulator connected to an LNG immersed pump and an LCNG plunger pump, an explosion-proof electric appliance cabinet connected to electric equipment, and the on-site substation using an PLC controller and with input terminal connected to sensors and control terminal connected to valves. The filling station is in no need of constructing a switching room, a control room, a duty room, an office and a rest room on site. Therefore, investment for constructing the station is reduced and construction time is shortened. When wireless network is used, the data of substations can be shared; and the site is in no need of management personnel, maintenance personnel and duty personnel basically.

The invention provides a pneumatic two-fluid grouting pump, and belongs to the technical field of electromechanical engineering equipment. The pneumatic two-fluid grouting pump is characterized in that a filter is connected with an air inlet ball valve which is connected with an air motor, the air motor is connected with a piston plate, the piston plate is connected with more than two pistons, the air motor is arranged on a piston frame, all the pistons are connected in plunger pump bodies, the plunger pump bodies are arranged on the piston frame and correspond to the pistons, elbows are arranged at the liquid absorption ends of t plunger pumps, the pump liquid ends of the plunger pumps are connected with a four-way pipe, a shock-proof pressure gage and the ball valve are connected to the four-way pipe respectively, a left high pressure hose and a right high pressure hose are connected to a Y-shaped three-way pipe which is further connected with a mixing pipe, and the mixing pipe is connected with an injection pipe. The pneumatic grouting pump is fully pneumatic, and single liquid grouting and two-fluid grouting can be conducted. The pneumatic two-fluid grouting pump is adjustable in pressure, simple in structure, stable and reliable in performance, long in service life, small in size, light in weight, flexible, reliable, wide in application range, convenient to move and transport, and suitable for frequently-moved multi-point grouting operation.

The invention relates to a novel anti-eccentric wear hydraulic oil extraction device which comprises surface power equipment and underground produced liquid equipment. The surface power equipment comprises a power liquid storage tank, a plunger pump, an energy accumulator and a reversing valve; the underground produced liquid equipment comprises a power liquid pipeline, a power pump and a produced liquid oil tube, the lower portion of the power liquid pipeline is connected with a power pump piston, the lower portion of the produced liquid oil tube is connected with an oil extraction pump pump-cylinder, the oil extraction pump pump-cylinder is internally provided with an oil extraction pump plunger which is internally provided with a traveling valve, the lower portion of the oil extraction pump pump-cylinder is connected with an underground oil tube, a standing valve is arranged on the position where the underground oil tube and the oil extraction pump pump-cylinder are connected, and a produced liquid storage cavity is formed between the oil extraction pump plunger and the standing valve; a power pump cylinder barrel is connected with the oil extraction pump plunger through a weighing rod in an up and down mode; a produced liquid outlet is formed in the upper end of the produced liquid oil tube. Power liquid and produced fluid are isolated all the time, and huge equipment on the ground is removed; the reversing valve is arranged on the ground, the underground structure is simple and reliable, and operation is convenient; meanwhile, the problem that the service life of underground equipment is short is solved.

The invention relates to the technical field of plunger pumps, in particular to an equal-diameter cam set for a pulse-free constant-flow three-plunger pump comprising three cams which are coaxially arranged. The angle difference between any two cams is 120 degrees; the lift and return angles of the cams are equal; each cam is provided with a cam follower in a matching manner; the cam follower drives the corresponding plunger to do reciprocating motion; each cam follower comprises rolling wheels and a connecting rod; the two rolling wheels oppositely arranged on the sides of the equal-diametercams are both in contact connection with the equal-diameter cams; the connecting line of the wheel centers of the two rolling wheels passes through the hole center of a mounting hole; and the wheel center distance of the two rolling wheels is kept constant in the process of making contact with the equal-diameter cams. The equal-diameter cam set for the pulse-free constant-flow three-plunger pump has the beneficial effects that the resultant velocity of the movement of the plungers driven by the cam followers corresponding to the three cams is a constant value, so that the output flow of the pump is a constant value, the cam followers are in contact with the cams all the time in the high-speed movement process, and the transmission precision of the equal-diameter cam set for the pulse-freeconstant-flow three-plunger pump is improved.

The invention provides a manufacturing process for improving the wear resistance of the outer circular surface of the plunger. The process is carried out according to the following steps: 1. blanking and rough machining; 2. finishing groove; 3. groove roughness treatment; 4. thermal spraying nickel-cobalt-chromium alloy powder; 5. post-processing; 6. quality inspection. The invention can make the plunger surface with a thicker wear-resistant layer, high surface hardness, corrosion resistance, small friction coefficient, long wear-resistant life, and the plunger base has concave grooves to protect the thermal sprayed powder alloy layer under the impact state No peeling or peeling, it adopts the manufacturing process of thermal spraying alloy powder on the surface of the plunger, which thickens the wear-resistant layer on the surface of the plunger, and has special requirements on the chemical composition and chemical formula of thermal spraying nickel-cobalt-chromium alloy powder , so that the wear resistance of the plunger surface can meet the technical requirements of high-pressure and large-displacement plunger pumps in oil fields.

A sealing structure of a reciprocating plunger pump comprises a pump seat, a pressure relief valve assembly, a pressure regulating valve assembly, and a plunger rod assembly; the plunger rod assembly includes a plunger rod, a large sealing ring and a small sealing ring; the structure of the large sealing ring is the same as that of the small sealing ring, and the large sealing ring includes a ring-shaped sealing body, an annular recess, and an annular tension spring; the annular tension spring always has an outwardly expanding force on both side walls of the annular recess; the sealing body includes a saw-tooth sealing groove. The sealing structure reduce the load on the pump and improve the service life of the sealing ring.

The invention discloses small part cleaning equipment, which belongs to the field of mechanical part cleaning, comprises a base, a high-pressure spray pipe, a high-pressure spray head and a control cabinet, and is characterized in that a waste liquid recovery pool, a liquid storage water tank, a filtering water tank, a plunger pump and a support are fixed on the base, a filter is fixed on the support, and a rotary worktable and a submersible pump are arranged in the waste liquid recovery pool; the submersible pump is connected with the filter through a liquid inlet pipe, the filter is connected with the filtering water tank through a liquid outlet pipe, the oil-water separator is installed in the filtering water tank, the filtering water tank is connected with the liquid storage water tank through a pipeline, the valve block is fixed to one side of the liquid storage water tank, and the pressure reducing valve and the overflow valve are installed on the valve block. The plunger pump is connected with the valve block through a pipeline, and the valve block is connected with the liquid storage water tank through a water inlet pipe. According to the cleaning device, cleaning liquid can be recycled, efficient and environment-friendly cleaning is conducted on small parts, the cleaning efficiency can be improved while the cleaning effect is guaranteed, and good environment friendliness is achieved.

The invention discloses a squeezing device used for grease production. The squeezing device comprises a supporting frame and a squeezing mechanism. The squeezing mechanism is fixed to the supporting frame. Due to the fact that a grease outlet plate assembly is arranged on the supporting frame and a filtering net plate is arranged on the grease outlet plate assembly, when grease obtained through squeezing in a squeezing box passes through the filtering net plate and falls on the grease outlet plate assembly, residues cannot exist in the grease, and cleanliness is higher. Due to the fact that asqueezing rod and the squeezing box arranged in the squeezing mechanism are transversely installed, loading and unloading are more convenient. A driving assembly is provided with a high-pressure plunger pump, a manual high-pressure pump and an alloy grease cylinder body, the squeezing process can be manually controlled and can also be automatically controlled, a moving rod is pushed through the alloy grease cylinder body to conduct squeezing, the squeezing effect is better, and the grease extraction rate is higher.