CN211623632U

CN211623632U - Reciprocating pump

Info

Publication number: CN211623632U
Application number: CN202020146742.6U
Authority: CN
Inventors: 冯琦皓; 梁勇杰; 黄浩
Original assignee: Pump Industry Co ltd In Wuxi City In East Asia
Current assignee: Pump Industry Co ltd In Wuxi City In East Asia
Priority date: 2020-01-23
Filing date: 2020-01-23
Publication date: 2020-10-02
Anticipated expiration: 2030-01-23

Abstract

The utility model discloses a reciprocating pump, including power end and fluid end, the fluid end includes pump head, sealed letter and plunger, and sealed letter is provided with a plurality ofly, a plurality of sealed letters all with the pump head intercommunication, the plunger is provided with a plurality ofly, the equal sliding connection of a plurality of plungers is in the inside of sealed letter, the one end that the pump head was kept away from to the plunger all is connected with the power end, is equipped with the heat insulating board between power end and the fluid end, the utility model discloses the beneficial effect who reaches is: through increasing a heat insulating board between sealed letter and pump head, add the cooling water to the inside of three passageway through the inlet tube, the cooling water passes through the cooling water runner and the passageway flows, can reduce the heat that sealed letter conducted in the power end, can avoid hydraulic end and power end direct contact, blocks the heat conduction, in time reduces the heat of heat insulating board itself, in time reduces the oil temperature of power end simultaneously to can guarantee power end normal operating.

Description

Reciprocating pump

Technical Field

The utility model relates to a reciprocating pump belongs to a reciprocating pump technical field.

Background

A plunger pump is a reciprocating pump, which is a liquid delivery machine that directly provides energy to a liquid in the form of pressure energy through the reciprocating motion of a piston. The pump is applied to the oil field industry, is generally used for intercepting liquid into a subsurface layer, and is also called an oil field injection pump. The packing box is generally composed of a power end and a hydraulic end, and is additionally provided with a packing box assembly, a box body, a base assembly, a belt, a check valve, a safety valve, a buffer and the like. At present, most of the injection pumps for oil fields at home and abroad have the temperature of the injection medium between 0 and 50 ℃. However, due to the requirement of special stratum geology, the temperature of the injected medium is required to be between 60 and 100 ℃, even more than 100 ℃, and the medium transmission device of the oil pump, namely a reciprocating pump, is usually connected with the power box of the pump, so that the high temperature of more than 70 ℃ can cause the power box to stop working, and therefore, the structural improvement of the reciprocating pump is needed.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art reciprocating pump inside usually with the headstock of pump link together, the injection medium high temperature of oil pump leads to the headstock work to appear stagnant defect easily, provides a reciprocating pump.

In order to solve the technical problem, the utility model provides a following technical scheme:

the utility model relates to a reciprocating pump, including power end and fluid end, the fluid end includes pump head, sealed letter and plunger, sealed letter is provided with a plurality ofly, and is a plurality of sealed letter all communicates with the pump head, the plunger is provided with a plurality ofly, and is a plurality of the equal sliding connection of plunger is in the inside of sealed letter, the one end that the pump head was kept away from to the plunger all is connected with the power end, be equipped with the heat insulating board between power end and the fluid end.

As an optimal technical scheme of the utility model, heat insulating board cavity sets up, the inside of heat insulating board is equipped with the passageway of three mutual intercommunication, two lateral walls that the heat insulating board is relative all fixed the intercommunication have inlet tube and outlet pipe.

As an optimized technical scheme of the utility model, the fixed cover of heat insulating board is connected on the lateral wall of three sealed letter, and is three the end of sealed letter is located threely respectively the inside of passageway.

As an optimized technical scheme of the utility model, it is three sealed letter is located and has all seted up the cooling water runner on the lateral wall of passageway.

As an optimized technical scheme of the utility model, the thickness of thermal-insulated plate is 46 mm.

As an optimal technical scheme of the utility model, the power end is equipped with machine pump oil pipe way, one side of power end is equipped with the cooler, machine pump oil pipe way is connected with the cooler.

The utility model discloses the beneficial effect who reaches is: through increasing a heat insulating board between sealed letter and pump head, add the cooling water to the inside of three passageway through the inlet tube, the cooling water passes through the cooling water runner and the passageway flows, can reduce the heat that sealed letter conducted in the power end, can avoid hydraulic end and power end direct contact, blocks the heat conduction, in time reduces the heat of heat insulating board itself, in time reduces the oil temperature of power end simultaneously to can guarantee power end normal operating.

Drawings

The accompanying drawings are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention, and together with the description serve to explain the invention and not to limit the invention.

In the drawings:

fig. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the structure of the present invention;

fig. 3 is a schematic diagram of the right-side view structure of the present invention;

fig. 4 is a schematic structural diagram of the oil pumping pipeline of the middle engine of the present invention.

In the figure: 1. a power end; 2. a fluid end; 21. a pump head; 3. a heat insulation plate; 31. a water inlet pipe; 32. a water outlet pipe; 4. sealing the box; 5. a cooler; 6. an oil pump pipeline; 7. a plunger; 8. and sealing the cooling water channel.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are presented herein only to illustrate and explain the present invention, and not to limit the present invention.

Examples

As shown in fig. 1-4, the utility model provides a technical solution: the utility model provides a reciprocating pump, be crankshaft link mechanism in power end 1, connect the motor and provide power, fluid end 2 contains the inflow and outflow of pump head 21, sealed letter 4 and plunger 7 and business turn over hydrovalve drive liquid, and sealed letter 4 is provided with a plurality ofly, and is a plurality of sealed letter 4 all communicates with pump head 21, and plunger 7 is provided with a plurality ofly, and the equal sliding connection of a plurality of plungers 7 is in the inside of sealed letter 4, and the one end that pump head 21 was kept away from to plunger 7 all is connected with power end 1, is equipped with heat insulating board 3 between power end 1 and the fluid end 2.

The heat insulation plate 3 is a hollow plate and is provided with three mutually communicated channels, two opposite outer side walls of the heat insulation plate 3 are fixedly communicated with a water inlet pipe 31 and a water outlet pipe 32, cooling water is added into the heat insulation plate 3 through the water inlet pipe 31, the heat of the heat insulation plate 3 is timely reduced while heat conduction is blocked, meanwhile, the heat insulation plate 3 is fixedly sleeved on the outer side walls of three sealing boxes 4, the tail ends of the three sealing boxes 4 are respectively positioned in the three channels, the tail ends of the sealing boxes 4 are thickened, cooling water flow channels 8 are processed in the thickened parts, the heat conducted into the power end 1 from the sealing boxes 4 is reduced, the thickness of the heat insulation plate is 46mm, meanwhile, a cooler 5 is additionally arranged on one side of a power end 1, lubricating oil enters the power end 1 through a pump oil pipeline 6 after passing through the cooler 5, and the self motion heating of the power end 1 is further reduced, so that the temperature of the engine oil is maintained within a normal range.

Specifically, a crankshaft connecting rod mechanism is arranged in the power end 1 and is connected with a motor to provide power, the hydraulic end 2 comprises a pump head 21, a sealing box 4, a plunger 7 and an inlet-outlet hydraulic valve to drive liquid to flow in and out, so that a medium is flushed into an underground layer, cooling water is added into the channel in the heat insulation plate 3 through the water inlet pipe 31, and flows at the tail end of the sealing box 4 through the channel and the six cooling water channels 8, so that the heat conducted from the sealing box 4 to the power end 1 can be reduced, the heat of the heat insulation plate 3 is reduced in time while the heat is prevented from being conducted from the hydraulic end 2 to the power end 1, thereby avoiding the heat of the hydraulic end 2 from being conducted to the power end 1, causing the power end 1 to have an operation fault due to overhigh temperature, meanwhile, after passing through the cooler 5, the lubricating oil enters the power end 1 through the pump oil pipeline 6, so that the motion heat of the power end 1 is further reduced, and the temperature of the engine oil is kept within a normal range.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A reciprocating pump, characterized by: including power end (1) and hydraulic end (2), hydraulic end (2) are including pump head (21), sealed letter (4) and plunger (7), sealed letter (4) are provided with a plurality ofly, and are a plurality of sealed letter (4) all communicate with pump head (21), plunger (7) are provided with a plurality ofly, and are a plurality of equal sliding connection of plunger (7) is in the inside of sealed letter (4), the one end that pump head (21) were kept away from in plunger (7) all is connected with power end (1), be equipped with heat insulating board (3) between power end (1) and hydraulic end (2).

2. A reciprocating pump according to claim 1, wherein: the heat insulation plate (3) is arranged in a hollow mode, three channels communicated with each other are arranged inside the heat insulation plate (3), and a water inlet pipe (31) and a water outlet pipe (32) are fixedly communicated with two opposite outer side walls of the heat insulation plate (3).

3. A reciprocating pump according to claim 2, wherein: the heat insulation plate (3) is fixedly sleeved on the outer side wall of each sealing box (4), and the tail ends of the three sealing boxes (4) are respectively positioned in the three channels.

4. A reciprocating pump according to claim 3, wherein: and the outer side wall of the channel of the three sealing boxes (4) is provided with a cooling water flow channel (8).

5. A reciprocating pump according to claim 1, wherein: the thickness of the heat insulation plate (3) is 46 mm.

6. A reciprocating pump according to claim 1, wherein: the power end (1) is provided with a pump oil pipeline (6), one side of the power end (1) is provided with a cooler (5), and the pump oil pipeline (6) is connected with the cooler (5).