Emulsion pump fluid end structure and emulsion pump system thereof

Abstract

The invention relates to the technical field of emulsion pumps, in particular to an emulsion pump fluid end structure and an emulsion pump system thereof. The emulsion pump is provided with a high-pressure cavity and a mounting base, and the mounting base is arranged close to the high-pressure cavity. The emulsion pump fluid end structure comprises a communication pipeline and a fluid end, wherein one end of the communication pipeline is communicated with a high-pressure cavity; and the energy storage device is arranged on the mounting seat, and the energy storage device communicates with the other end of the communicating pipeline. According to the emulsion pump fluid end structure and the emulsion pump system thereof, the energy storage device is installed at the top of the emulsion pump, the high-pressure cavity and the energy storage device are connected through the communicating pipeline, the liquid flow speed and the pressure gradient can be reduced through the energy storage device, and the problem that an existing fluid end high-pressure emulsion flow pulse is large is effectively solved; a large amount of noise and vibration generated by the fluid end are reduced; the energy storage device is integrated with the emulsion pump through the mounting base, additional mounting is not needed, additional pipeline arrangement is reduced, the structure is simplified, and the assembly cost is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of emulsion pumps, and in particular to an emulsion pump hydraulic end structure and an emulsion pump system thereof. Background Art

[0002] The underground fluid supply system is the core equipment of the fully mechanized mining face. The hydraulic support can follow the coal mining machine to perform normal operations, which is inseparable from the high-pressure emulsion provided by the fluid supply system. The emulsion pump station is the core equipment of the underground fluid supply system, which is responsible for providing power for the hydraulic support. The structure of the emulsion pump can be divided into the power end that converts electrical energy into mechanical energy, and the hydraulic end that converts mechanical energy into hydraulic energy.

[0003] At present, the structure of the hydraulic end of the emulsion pump varies according to the different manufacturers, but the main principles are the same, namely, it includes: 1. Valve body: connecting the plunger cavity and providing an assembly cavity for the suction and discharge valve assembly, with a fluid flow channel inside; 2. Suction valve assembly: sucking the emulsion from the suction box into the valve body; 3. Discharge valve assembly: pressurizing the emulsion from the valve body to high pressure and discharging it out of the valve body. With the continuous increase in the height of the comprehensive mining face, the flow requirements for the emulsion pump are also increasing day by day. With the increase in flow, the disadvantages of the existing hydraulic end are gradually emerging. The increase in flow means an increase in flow rate, and the liquid flow rate has a direct relationship with its stability. When the flow rate increases, the fluid gradually changes from laminar flow to turbulent flow, and unpredictable vibration and noise occur. Even due to the rapid change of the pressure gradient, cavitation may occur, further increasing noise and vibration. The existing technical solutions mostly use the method of adding an accumulator outside the pump to reduce the flow pulse, but there are problems such as high cost and inconvenient installation. Summary of the invention

[0004] The present invention provides an emulsion pump hydraulic end structure and an emulsion pump system thereof, which are used to solve the defects of the prior art that an accumulator is added outside the pump to reduce flow pulse, but the cost is high and the installation is inconvenient.

[0005] The present invention provides a hydraulic end structure of an emulsion pump, wherein the emulsion pump has a high-pressure chamber and a mounting seat, and the mounting seat is arranged close to the high-pressure chamber. The hydraulic end structure of the emulsion pump includes: A communication pipe, one end of which is connected to the high-pressure chamber; An energy storage device is arranged on the mounting seat, and the energy storage device is communicated with the other end of the communicating pipe.

[0006] The hydraulic end structure of the emulsion pump provided by the present invention further includes: a fastener, a through hole for the fastener to pass through is formed on the mounting seat, and the mounting seat is fixed to the hydraulic end of the emulsion pump through the fastener.

[0007] The hydraulic end structure of the emulsion pump provided by the present invention further includes: a protective cover, one end of which is fixed to the mounting seat by the fastener and covers the outer side of the energy storage device.

[0008] The hydraulic end structure of the emulsion pump provided by the present invention further includes: a positioning member, a first positioning hole is formed at the other end of the protective cover, one end of the positioning member is assembled in the first positioning hole, and the other end is positioned and connected to the energy storage device.

[0009] The hydraulic end structure of the emulsion pump provided by the present invention further includes: a straight joint, a mounting hole is formed at the geometric center of the mounting seat, the straight joint is inserted into the mounting hole, one end of the straight joint is connected to the connecting pipe, and the other end of the straight joint is connected to the energy storage device.

[0010] According to the hydraulic end structure of the emulsion pump provided by the present invention, the emulsion pump further comprises: a discharge valve spring seat, which is arranged at the discharge end of the high-pressure chamber, and the communicating pipe is arranged inside the discharge valve spring seat.

[0011] The hydraulic end structure of the emulsion pump provided by the present invention further includes: a positioning block, the positioning block is fixed in the mounting hole, a second positioning hole is provided in the positioning block, and the straight-through joint is provided in the second positioning hole.

[0012] According to the hydraulic end structure of the emulsion pump provided by the present invention, the emulsion pump has a plurality of the high-pressure chambers and the mounting seat; The energy storage device and the communicating pipe are respectively provided in plurality and fixed on the mounting seat in a one-to-one correspondence. The energy storage device is communicated with the corresponding high-pressure chamber through the corresponding communicating pipe.

[0013] According to the hydraulic end structure of the emulsion pump provided by the present invention, the energy storage device comprises: a bladder accumulator; When the emulsion pump is in the discharge stage, the pressure in the high-pressure chamber increases, and the bladder accumulator absorbs the overflowed emulsion; when the emulsion pump is in the suction process, the pressure in the high-pressure chamber is released, and the bladder accumulator releases the absorbed emulsion.

[0014] The present invention further provides an emulsion pump system, comprising: the emulsion pump hydraulic end structure in the embodiment of the present invention.

[0015] The present invention provides a hydraulic end structure of an emulsion pump, wherein the emulsion pump has a high-pressure chamber and a mounting seat, and the mounting seat is arranged close to the high-pressure chamber. The hydraulic end structure of the emulsion pump of the present invention includes: a connecting pipe and an energy storage device. One end of the connecting pipe is connected to the high-pressure chamber; the energy storage device is fixed on the mounting seat, and the energy storage device is connected to the other end of the connecting pipe. The present invention provides a hydraulic end structure of an emulsion pump, wherein the mounting seat can be located at the top of the emulsion pump, the energy storage device is installed on the top of the emulsion pump, and the high-pressure chamber and the energy storage device are connected by a connecting pipe to guide the high-pressure liquid to the energy storage device; the liquid flow rate and pressure gradient can be reduced by the energy storage device, effectively alleviating the problem of large flow pulse of high-pressure emulsion at the existing hydraulic end, thereby reducing a large amount of noise and vibration generated by the hydraulic end; and the present invention integrates the energy storage device with the emulsion pump through the mounting seat, without the need for additional installation, reducing the additional pipeline setting, simplifying the structure, and reducing the assembly cost.

[0016] Furthermore, the emulsion pump system provided by the present invention has the same advantages as above because it includes the emulsion pump hydraulic end structure in the embodiment of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the hydraulic end structure of the emulsion pump provided in one embodiment of the present invention.

[0019] Figure 2 It is a schematic diagram of the internal structure of the hydraulic end structure of the emulsion pump provided in one embodiment of the present invention.

[0020] Figure 3 It is a partial schematic diagram of the hydraulic end structure of an emulsion pump provided in one embodiment of the present invention.

[0021] Reference numerals: 1: emulsion pump; 2: mounting seat; 3: connecting pipe; 4: energy storage device; 5: fastener; 6: protective cover; 7: positioning piece; 8: straight-through connector; 9: drain valve spring seat; 10: positioning block; 11: high-pressure chamber. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In the description of the present embodiment, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present embodiment and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present embodiment.

[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the features. In the description of this embodiment, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0025] In this embodiment, unless otherwise clearly specified and limited, the terms "set", "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For those of ordinary skill in the art, the specific meanings of the above terms in this embodiment can be understood according to specific circumstances.

[0026] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0027] Combine the following Figure 1 and Figure 2 The present invention describes an emulsion pump hydraulic end structure. The emulsion pump has a high-pressure chamber 11 and a mounting seat 2 , and the mounting seat 2 is arranged close to the high-pressure chamber 11 .

[0028] Specifically, the emulsion pump 1 is a device for converting mechanical energy into liquid pressure energy, and is mainly used in industrial fields that require high-pressure liquids, especially as a power source for hydraulic supports in the coal mining industry. It reciprocates a plunger or other type of piston in the pump body, thereby pressurizing the liquid in the working chamber and discharging it through the outlet.

[0029] The high-pressure chamber 11 of the emulsion pump 1 generally refers to the space where the plunger or piston inside the pump compresses the liquid. When the plunger moves in one direction, it compresses the liquid in this space, thereby increasing the pressure of the liquid. A mounting seat 2 is designed and processed near the high-pressure chamber 11 for mounting the hydraulic end structure of the emulsion pump.

[0030] The hydraulic end structure of the emulsion pump provided by the present invention includes: a connecting pipe 3 and an energy storage device 4.

[0031] Specifically, one end of the communication pipe 3 is communicated with the high-pressure chamber 11 ; the energy storage device 4 is disposed on the mounting seat 2 , and the energy storage device 4 is communicated with the other end of the communication pipe 3 .

[0032] The high pressure chamber 11 is connected to the energy storage device 4 through the connecting pipe 3, and the high pressure liquid in the high pressure chamber 11 can be delivered to the energy storage device 4 for energy storage. The mounting seat 2 is used to fix the energy storage device 4 to fix the energy storage device 4 at the hydraulic end position of the emulsion pump.

[0033] Preferably, the energy storage device 4 can be an accumulator. The core of the present invention is to utilize the energy storage mechanism of the accumulator to temporarily store the energy in a single plunger chamber system. In the discharge stage, when the pressure increases instantaneously, the accumulator absorbs the overflowed flow and pressure to buffer the system; in the suction process, the pressure is released, and the accumulator releases the absorbed flow and pressure to supplement the system pressure drop.

[0034] Preferably, an emulsion pump provided by the present invention has multiple independent hydraulic ends, each of which can output high-pressure emulsion and has an independent high-pressure chamber 11 and mounting seat 2, and each high-pressure chamber 11 and mounting seat 2 corresponds to an independent emulsion pump hydraulic end structure. Figure 1 In the structure shown, an emulsion pump has five independent hydraulic ends, with five independent high-pressure chambers 11 and mounting seats 2, and each mounting seat 2 can install an independent emulsion pump hydraulic end structure, each high-pressure chamber 11 is connected to the corresponding energy storage device 4 through a corresponding connecting pipe 3, and the working conditions of the accumulators of each hydraulic end are independent of each other and do not affect each other.

[0035] Furthermore, the hydraulic end structure of the emulsion pump provided by the present invention can be integrated on the emulsion pump through the mounting seat 2. Preferably, the mounting seat 2 is located at the top of the emulsion pump, and the energy storage device 4 is installed on the top of the emulsion pump, and the high-pressure chamber 11 is connected with the energy storage device 4 by the connecting pipe 3, and the high-pressure liquid is led to the energy storage device 4, and the liquid flow rate and pressure gradient can be reduced by the energy storage device 4, which effectively alleviates the problem of large flow pulse of high-pressure emulsion at the existing hydraulic end, thereby reducing a large amount of noise and vibration generated by the hydraulic end; and, the present invention integrates the energy storage device 4 with the emulsion pump through the mounting seat 2, without the need for additional installation, reducing the setting of additional pipelines, simplifying the structure, and reducing assembly costs.

[0036] The present invention provides an emulsion pump hydraulic end structure, wherein the emulsion pump 1 has a high-pressure chamber 11 and a mounting seat 2, and the mounting seat 2 is arranged near the high-pressure chamber 11. The emulsion pump hydraulic end structure of the present invention comprises: a connecting pipe 3 and an energy storage device 4. One end of the connecting pipe 3 is connected to the high-pressure chamber 11; the energy storage device 4 is fixed on the mounting seat 2, and the energy storage device 4 is connected to the other end of the connecting pipe 3. The present invention provides an emulsion pump hydraulic end structure, wherein the mounting seat 2 can be located at the top of the emulsion pump 1, the energy storage device 4 is installed on the top of the emulsion pump 1, and the high-pressure chamber 11 and the energy storage device 4 are connected by the connecting pipe 3, and the high-pressure liquid is led to the energy storage device 4; the liquid flow rate and pressure gradient can be reduced by the energy storage device 4, effectively alleviating the problem of large flow pulse of high-pressure emulsion at the existing hydraulic end, thereby reducing a large amount of noise and vibration generated by the hydraulic end; and the present invention integrates the energy storage device 4 with the emulsion pump through the mounting seat 2, without the need for additional installation, reducing the additional pipeline setting, simplifying the structure, and reducing the assembly cost.

[0037] In one embodiment of the present invention, the hydraulic end structure of the emulsion pump further includes: a fastener 5, a through hole for the fastener 5 to pass through is formed on the mounting seat 2, and the mounting seat 2 is fixed to the hydraulic end of the emulsion pump through the fastener 5. Preferably, the fastener 5 can be a bolt, a threaded hole is processed on the top of the shell of the emulsion pump 1, and a through hole is designed and processed on the mounting seat 2, the bolt passes through the through hole and is screwed into the threaded hole of the shell, and the mounting seat 2 can be fixed to the top of the emulsion pump 1 as the bolt is rotated and tightened. Preferably, a plurality of fasteners 5 can be provided, and a plurality of through holes are designed on the mounting seat 2, and the mounting seat 2 is stably fixed to the hydraulic end of the emulsion pump by using the multi-point positioning of the fastener 5 and the through holes, so as to improve the stability of the mounting seat 2 and reduce the influence of the shaking of the energy storage device 4 on the mounting seat 2 when storing energy.

[0038] In one embodiment of the present invention, the hydraulic end structure of the emulsion pump further includes: a protective cover 6, one end of which is fixed to the mounting seat 2 by a fastener 5, and is covered on the outside of the energy storage device 4. Preferably, a through hole is also designed and processed on the protective cover 6. During the assembly process, the fastener 5 passes through the through holes of the mounting seat 2 and the protective cover 6 in sequence to fix the mounting seat 2 and the protective cover 6 to the hydraulic end of the emulsion pump. The protective cover 6 in this embodiment provides protection for the energy storage device 4, avoids the energy storage device 4 from flying out due to bolt disengagement or other reasons of loose assembly, and improves the safety of the device. Preferably, the protective cover 6 is a rectangular structure, and is formed with an upper surface, a lower surface, a left surface and a right surface. The lower surface is fixed by bolts, and the left and right surfaces and the upper surface cover are arranged on the outside of the energy storage device 4 to protect it. It can be understood that there is a gap between the left and right surfaces and the energy storage device 4, and when the energy storage device 4 is in an expanded state, the upper surface fits the energy storage device 4.

[0039] In one embodiment of the present invention, the hydraulic end structure of the emulsion pump further includes: a positioning member 7, a first positioning hole is formed at the other end of the protective cover 6, one end of the positioning member 7 is assembled in the first positioning hole, and the other end is positioned and connected with the energy storage device 4. Specifically, the positioning member 7 can be a positioning bolt, one end of the positioning bolt passes through and is assembled in the first positioning hole, and the other end is anchored to the top of the energy storage device 4, so as to position the energy storage device 4. Optionally, a threaded hole is processed on the top of the energy storage device 4, and the positioning bolt can be screwed into the threaded hole to achieve the positioning of the energy storage device 4, avoid the shaking of the energy storage device 4 during the energy storage and / or energy release process, thereby reducing the overall vibration and noise of the emulsion pump 1.

[0040] In one embodiment of the present invention, the hydraulic end structure of the emulsion pump further includes: a straight connector 8, a mounting hole is formed at the geometric center of the mounting seat 2, the straight connector 8 is inserted into the mounting hole, one end of the straight connector 8 is connected to the connecting pipe 3, and the other end of the straight connector 8 is connected to the energy storage device 4. Specifically, a mounting hole is formed in the mounting seat 2, and the straight connector 8 can be inserted into the mounting hole, which, on the one hand, provides the installation needs of the straight connector 8, and on the other hand, can position the straight connector 8 to ensure its stable connection with the connecting pipe 3 and the energy storage device 4. Preferably, the straight connector 8 has a diversion hole, which can divert the high-pressure liquid output from the connecting pipe 3 to the energy storage device 4, or return the high-pressure liquid in the energy storage device 4 to the high-pressure chamber 11.

[0041] In one embodiment of the present invention, the emulsion pump 1 further includes: a discharge valve spring seat 9, which is arranged at the discharge end of the high-pressure chamber 11, and a connecting pipe 3 is arranged inside the discharge valve spring seat 9. It can be understood that the discharge valve spring seat 9 is an important part of the discharge valve assembly, which is usually located inside the discharge valve and is used to support and position the spring of the discharge valve; the main function of the discharge valve is to open after the plunger or piston completes the compression stroke, allowing high-pressure liquid to be discharged from the high-pressure chamber 11; and to close when the plunger or piston returns to prevent the liquid from flowing back to the high-pressure chamber 11. The present invention, through the modification of the discharge valve spring seat 9, has a channel for installing the connecting pipe 3 in the internal processing design, so that one end of the connecting pipe 3 is connected to the high-pressure chamber 11, and the other end extends out of the discharge valve spring seat 9 and is connected to the straight-through joint 8.

[0042] In one embodiment of the present invention, the hydraulic end structure of the emulsion pump further includes: a positioning block 10, the positioning block 10 is fixed in the mounting hole, a second positioning hole is provided in the positioning block 10, and the straight joint 8 is provided in the second positioning hole. In this embodiment, by installing the positioning block 10 inside the mounting hole, the straight joint 8 is further limited by the positioning block 10. Its specific processing and assembly process is that there is now a larger-sized mounting hole in the mounting seat 2, and the mounting hole matches the outer size of the positioning block 10, and the size of the second positioning hole on the inner side of the positioning block 10 matches the straight joint 8. First, insert the positioning block 10 into the positioning hole, and then insert the straight joint 8 into the second positioning hole to achieve the positioning installation of the straight joint 8, and finally connect one end of the straight joint 8 to the connecting pipe 3, and the other end to the interface of the energy storage device 4.

[0043] In one embodiment of the present invention, the emulsion pump 1 has a plurality of high-pressure chambers 11 and a mounting seat 2. A plurality of energy storage devices 4 and a plurality of connecting pipes 3 are respectively provided and fixed on the mounting seat 2 in a one-to-one correspondence. The energy storage devices 4 are connected to the corresponding high-pressure chambers 11 through the corresponding connecting pipes 3. Preferably, as Figure 1In the structure shown, the emulsion pump 1 of this embodiment is provided with five high-pressure chambers 11 and a mounting seat 2 side by side, and five energy storage devices 4 and connecting pipes 3 are provided accordingly. Each energy storage device 4 is fixed on the corresponding mounting seat 2 and is connected with the corresponding high-pressure chamber 11 through the corresponding connecting pipe 3. The energy storage devices 4 work independently of each other and do not affect each other.

[0044] In one embodiment of the present invention, the energy storage device 4 includes: a bladder accumulator. When the emulsion pump 1 is in the discharge stage, the pressure of the high-pressure chamber 11 increases, and the bladder accumulator absorbs the overflowed emulsion; when the emulsion pump 1 is in the absorption process, the pressure of the high-pressure chamber 11 is released, and the bladder accumulator releases the absorbed emulsion. The bladder accumulator has an elastic air bag (usually made of rubber or synthetic material) inside, which is mainly used to store energy, absorb pressure pulsation and impact, provide emergency power and compensate for leakage. Specifically, through the expansion or contraction of the bladder accumulator, it can be achieved that: in the discharge stage, the high-pressure liquid is absorbed, the bladder accumulator expands, the emulsion pump system is buffered, the flow rate and flow rate of the high-pressure liquid discharged are reduced, and the vibration and noise generated are reduced. It should be understood that other forms of accumulators can also be used instead of the above-mentioned bladder accumulator, such as: diaphragm accumulator, piston accumulator, spring accumulator and gravity accumulator, etc., and different forms of accumulators can be selected according to specific circumstances.

[0045] The present invention also provides an emulsion pump system, which comprises: the emulsion pump hydraulic end structure in the above embodiment of the present invention.

[0046] An emulsion pump system provided by the present invention has the same advantages as above because it includes the hydraulic end structure of the emulsion pump in the embodiment of the present invention.

[0047] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An emulsion pump hydraulic end structure, characterized in that: The emulsion pump (1) comprises a high-pressure chamber (11) and a mounting seat (2), wherein the mounting seat (2) is arranged close to the high-pressure chamber (11), and the hydraulic end structure of the emulsion pump comprises: A communication pipe (3), one end of which is connected to the high-pressure chamber (11); An energy storage device (4) is arranged on the mounting seat (2), and the energy storage device (4) is connected to the other end of the connecting pipe (3).

2. The hydraulic end structure of the emulsion pump according to claim 1, characterized in that: Also includes: A fastener (5), wherein a through hole is formed on the mounting seat (2) for the fastener (5) to pass through, and the mounting seat (2) is fixed to the hydraulic end of the emulsion pump via the fastener (5).

3. The hydraulic end structure of the emulsion pump according to claim 2, characterized in that: Also includes: A protective cover (6), one end of the protective cover (6) being fixed to the mounting seat (2) via the fastener (5) and covering the outside of the energy storage device (4).

4. The hydraulic end structure of the emulsion pump according to claim 3, characterized in that: Also includes: A positioning member (7), wherein the other end of the protective cover (6) is formed with a first positioning hole, one end of the positioning member (7) is assembled in the first positioning hole, and the other end is connected to the energy storage device (4) in a positioning manner.

5. The hydraulic end structure of the emulsion pump according to any one of claims 1 to 4, characterized in that: Also includes: A straight joint (8), wherein a mounting hole is formed at the geometric center of the mounting seat (2), the straight joint (8) is inserted into the mounting hole, one end of the straight joint (8) is connected to the connecting pipe (3), and the other end of the straight joint (8) is connected to the energy storage device (4).

6. The hydraulic end structure of the emulsion pump according to claim 5, characterized in that: The emulsion pump further comprises: a liquid discharge valve spring seat (9) arranged at the liquid discharge end of the high-pressure chamber (11); and the connecting pipe (3) is arranged inside the liquid discharge valve spring seat (9).

7. The hydraulic end structure of the emulsion pump according to claim 5, characterized in that: Also includes: A positioning block (10), the positioning block (10) being fixed in the mounting hole, a second positioning hole being provided in the positioning block (10), and the straight-through joint (8) being provided in the second positioning hole.

8. The hydraulic end structure of the emulsion pump according to any one of claims 1 to 4, characterized in that: The emulsion pump comprises a plurality of high-pressure chambers (11) and a mounting seat (2); The energy storage device (4) and the communication pipe (3) are respectively provided in plurality and fixed on the mounting seat (2) in a one-to-one correspondence, and the energy storage device (4) is connected to the corresponding high-pressure chamber (11) via the corresponding communication pipe (3).

9. The hydraulic end structure of the emulsion pump according to any one of claims 1 to 4, characterized in that: The energy storage device (4) comprises: a bladder-type energy storage device; When the emulsion pump (1) is in the discharge stage, the pressure of the high-pressure chamber (11) increases, and the bladder accumulator absorbs the overflowed emulsion; when the emulsion pump (1) is in the suction process, the pressure of the high-pressure chamber (11) is released, and the bladder accumulator releases the absorbed emulsion.

10. An emulsion pump system, characterized in that: include: The hydraulic end structure of an emulsion pump according to any one of claims 1 to 9.

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