Liquid pressurizing device

Abstract

The present application provides a liquid boosting device, including a base, which has a first liquid inlet channel, a second liquid inlet channel, a liquid outlet channel and a liquid storage chamber that are isolated from each other; a balancing container, which is arranged in the liquid storage chamber and is connected to the first liquid inlet channel, and the balancing container has flexibility to balance the internal pressure of the first liquid inlet channel and the liquid storage chamber; a boosting mechanism, including a boosting chamber that is connected to the second liquid inlet channel and the liquid outlet channel and is separated from the base liquid storage chamber; a driving mechanism, which is connected to the base liquid storage chamber and is configured to provide pressure to the boosting chamber to pump the liquid in the boosting chamber out through the liquid outlet channel. The liquid boosting device provided by the present application performs boosting on the basis of the original pressure of the under-pressure liquid, effectively utilizing the original pressure of the under-pressure liquid, thereby saving the energy consumed by pressurization.

Description

Technical Field

[0001] The present application relates to the field of pressurization technology, and in particular to a liquid pressurization device. Background Art

[0002] In the process of industrial production, enterprises usually set up a water injection network pressure system to provide water sources of specific pressure to multiple facilities. However, in the process of the pressure station of the network pressure system injecting water to multiple industrial facilities through pipelines, due to the different distances between the industrial facilities and the pressure station, the pressure of the water injection pipeline far away from the pressure station is insufficient. In this case, if the pressure output of the pressure station is increased blindly, it will directly affect the operation of the entire water injection network pressure system. Therefore, water injection booster pumps are usually used to separately pressurize remote water injection pipelines.

[0003] However, the current water injection booster pumps have the problems of large energy consumption and high production costs, and there is an urgent need to provide a liquid booster device with less energy consumption and lower production costs. Summary of the invention

[0004] The purpose of this application is to overcome the defects of the prior art and provide a liquid pressurizing device to solve the problems existing in the prior art.

[0005] To achieve the above objectives, this application adopts the following technical solutions:

[0006] A liquid boosting device comprises a base having a first liquid inlet channel, a second liquid inlet channel, a liquid outlet channel and a liquid storage chamber which are isolated from each other; a balancing container which is arranged in the liquid storage chamber and is connected to the first liquid inlet channel, the balancing container being flexible so as to balance the internal pressure of the first liquid inlet channel and the liquid storage chamber; a boosting mechanism comprising a boosting chamber which is connected to the second liquid inlet channel and the liquid outlet channel and is separated from the liquid storage chamber of the base; a driving mechanism which is connected to the liquid storage chamber of the base and is configured to provide pressure to the boosting chamber so as to pump out the liquid in the boosting chamber through the liquid outlet channel.

[0007] Optionally, a flow diversion cover is disposed in the base, the balancing container is fixedly connected to the flow diversion cover, and the first liquid inlet channel and the second liquid inlet channel are both disposed in the flow diversion cover.

[0008] Optionally, the diverter cover divides the liquid storage chamber into a first liquid storage chamber and a second liquid storage chamber, the diverter cover is provided with a connecting channel connecting the first liquid storage chamber and the second liquid storage chamber, the driving mechanism is connected to the first liquid storage chamber, and the balancing container is located in the second liquid storage chamber.

[0009] Optionally, the balancing container is made of rubber material.

[0010] Optionally, the boosting mechanism further comprises a cylinder body fixedly connected to the base, the boosting chamber is arranged in the cylinder body, and the driving mechanism comprises a plunger located in the cylinder body, one end of the plunger enters the boosting chamber and the other end enters the liquid storage chamber.

[0011] Optionally, the boost chamber includes a first boost chamber and a second boost chamber separated by a diaphragm and transmitting pressure, and the second boost chamber is connected to the second liquid inlet channel; the driving mechanism provides pressure to the first boost chamber to pump out the liquid in the second boost chamber through the liquid outlet channel.

[0012] Optionally, a liquid inlet one-way valve is provided between the second pressurizing chamber and the liquid inlet channel, and liquid can only enter the second pressurizing chamber from the liquid inlet channel through the liquid inlet one-way valve.

[0013] Optionally, a liquid outlet one-way valve is provided between the second pressurizing chamber and the liquid outlet channel, and the liquid in the second pressurizing chamber enters the liquid outlet channel through the liquid outlet one-way valve after reaching a predetermined pressure.

[0014] Optionally, the driving mechanism also includes a motor, which is mounted on the base; a transmission shaft, which is arranged in the liquid storage chamber and rotates around its own axis, one end of which is transmission-connected to the motor, and the other end is eccentrically arranged and connected to the plunger; the motor drives the transmission shaft to rotate, and when the transmission shaft rotates, its eccentric end drives the plunger to move.

[0015] Optionally, a shell is detachably connected to the base, the interior of the shell is communicated with the liquid storage chamber of the base, and the motor is installed inside the shell.

[0016] Optionally, the driving mechanism also includes a reducer, and the motor and the reducer are both installed outside the liquid storage chamber of the base, the output end of the motor is connected to the input end of the reducer, the output end of the reducer is sealed with the end of the base through a sealing mechanism, and is connected to the transmission shaft in the liquid storage chamber.

[0017] Optionally, a shell is detachably connected to the base, the interior of the shell is communicated with the liquid storage chamber of the base, and the motor and the reducer are installed outside the shell.

[0018] Optionally, the boosting mechanism is provided in at least two groups, which are evenly distributed in the circumferential direction of the base.

[0019] Optionally, the input end of the first liquid inlet channel is connected to a filter.

[0020] The liquid boosting device provided by the present application transfers the pressure of the underpressure liquid to the inside of the liquid boosting device by setting a balance container, providing a back pressure consistent with the underpressure liquid pressure for the driving mechanism of the liquid boosting device. Thus, the driving mechanism can boost the pressure on the basis of the original pressure of the underpressure liquid, boost the underpressure liquid on the basis of the pipeline pressure, save the energy consumed by the driving mechanism to pressurize the underpressure liquid, and reduce the production cost; on the premise of maintaining the same power, the liquid boosting device is smaller in volume than the existing water injection booster pump and can meet the needs of operating in more scenarios. Brief Description of the Drawings

[0021] Figure 1 is a cross-sectional view of a liquid boosting device provided in Embodiment 1 of the present application;

[0022] Figure 2 is a cross-sectional view of a base part provided in Embodiment 1 of the present application;

[0023] Figure 3 is a cross-sectional view of a boosting mechanism provided in Embodiment 1 of the present application;

[0024] Figure 4 is a top view of a liquid boosting device provided in Embodiment 1 of the present application;

[0025] Figure 5 is a cross-sectional view of a liquid boosting device provided in Embodiment 2 of the present application.

[0026] Reference Signs:

[0027] 1. Base; 11. First Liquid Inlet Channel; 12. Second Liquid Inlet Channel; 13. Liquid Outlet Channel; 14. Liquid Inlet Pipe; 15. Liquid Storage Chamber; 151. First Liquid Storage Chamber; 152. Second Liquid Storage Chamber; 16. Liquid Inlet; 17. Liquid Outlet; 2. Balance Container; 3. Diverting Cover; 31. Connection Channel; 4. Boosting Mechanism; 41. Cylinder Block; 42. Boosting Chamber; 421. First Boosting Chamber; 422. Second Boosting Chamber; 43. Diaphragm; 44. Diaphragm Seat; 45. Diaphragm Cover; 46. Liquid Inlet Check Valve; 47. Liquid Outlet Check Valve; 5. Driving Mechanism; 51. Plunger; 52. Motor; 53. Transmission Shaft; 531. Cam; 54. Return Spring; 55. Reducer; 56. Rotary Sealing Mechanism; 6. Filter; 7. Housing; 71. High-Pressure Sealing Power Supply Base; 8. Working Liquid; 9. Underpressure Liquid. Detailed Embodiments

[0028] The following describes the detailed embodiments of the present application with reference to the drawings.

[0029] In this document, “upper”, “lower”, “front”, “back”, “left”, “right”, etc. are only used to indicate the relative position relationship between related parts, rather than to limit the absolute positions of these related parts.

[0030] In this article, "first", "second", etc. are only used to distinguish each other, and do not indicate the importance and order, or the premise of each other's existence.

[0031] In this document, “equal”, “same”, etc. are not strictly limited in a mathematical and / or geometric sense, but also include errors that can be understood by those skilled in the art and are allowed in manufacturing or use.

[0032] At present, the water injection network pressure system usually uses a water injection booster pump to boost the pressure of remote water injection pipelines. After the under-pressure liquid 9 in the water injection pipeline enters the water injection booster pump, the water injection booster pump needs to increase the pressure of the under-pressure liquid 9 from zero to a specified pressure, which consumes more resources and has low boosting efficiency.

[0033] The present application provides a liquid pressure boosting device, which is applied to the water injection network pressure system to boost the pressure of the under-pressure liquid 9 in the remote water injection pipeline. The liquid pressure boosting device can increase the under-pressure liquid 9 from the original pressure to the specified pressure, thereby reducing energy consumption and reducing production costs. The present application illustrates its specific structure and working principle through the following embodiments.

[0034] Embodiment 1

[0035] like Figures 1 to 3 As shown, a liquid boosting device provided by the present application includes a base 1, a balancing container 2, a boosting mechanism 4 and a driving mechanism 5. The base 1 has a first liquid inlet channel 11, a second liquid inlet channel 12, a liquid outlet channel 13 and a liquid storage chamber 15 which are isolated from each other. The liquid storage chamber 15 stores a working liquid 8. The balancing container 2 is arranged in the liquid storage chamber 15, which is flexible and communicates with the first liquid inlet channel 11. The boosting mechanism 4 includes a cylinder body 41 fixedly connected to the base 1, and a boosting chamber 42 is arranged in the cylinder body 41. The boosting chamber 42 is communicated with the second liquid inlet channel 12 and the liquid outlet channel 13 of the base 1, and is separated from the liquid storage chamber 15 of the base 1. The driving mechanism 5 is communicated with the liquid storage chamber 15 of the base 1, and is configured to provide pressure to the boosting chamber 42 to increase the pressure of the under-pressure liquid 9 in the boosting chamber 42, and pump out the under-pressure liquid 9 after boosting through the liquid outlet channel 13.

[0036] The flexible balancing container 2 can transfer the pressure of the under-pressure liquid 9 to the working liquid 8 in the liquid storage chamber 15. The working liquid 8 generates a back pressure on the driving mechanism 5 that is consistent with the pressure of the under-pressure liquid 9, so that after the under-pressure liquid 9 enters the boosting chamber 42, the driving mechanism 5 starts to boost the pressure based on the original pressure of the under-pressure liquid 9, thereby improving the boosting efficiency and saving the energy consumed by the driving mechanism 5.

[0037] A flow divider cover 3 is also provided in the liquid storage chamber 15 of the base 1. Figure 2 As shown, the diverter cover 3 is provided at the opening of the balancing container 2 and is fixedly connected to the balancing container 2. The base 1 and the diverter cover 3, and the balancing container 2 and the diverter cover 3 can be detachably fixedly connected. The first liquid inlet channel 11 and the second liquid inlet channel 12 are both provided on the diverter cover 3. A liquid inlet 16 and a liquid outlet 17 are also provided on the base 1. One end of the first liquid inlet channel 11 is connected to the liquid inlet 16, and the other end is connected to the balancing container 2; the second liquid inlet channel 12 is connected to the liquid inlet 16 and the liquid outlet 17 of the base 1. The second liquid inlet channel 12 can be constructed as an annular channel formed by the groove provided on the peripheral surface of the diverter cover 3 and the inner wall of the liquid storage chamber 15.

[0038] The underpressure liquid 9 enters the first liquid inlet channel 11 and the second liquid inlet channel 12 simultaneously from the liquid inlet port 16 of the base 1. A portion of the underpressure liquid 9 enters the balancing container 2 through the first liquid inlet channel 11, and another portion of the underpressure liquid 9 reaches the liquid outlet 17 through the second liquid inlet channel 12, and enters the boosting chamber 42 of the boosting mechanism 4 from the liquid outlet 17.

[0039] The flow dividing cover 3 divides the liquid storage chamber 15 into a first liquid storage chamber 151 and a second liquid storage chamber 152. The flow dividing cover 3 is provided with a connecting passage 31 connecting the first liquid storage chamber 151 and the second liquid storage chamber 152. The driving mechanism 5 is connected to the first liquid storage chamber 151, and the balancing container 2 is located in the second liquid storage chamber 152, thereby avoiding interference between the driving mechanism 5 and the balancing container 2.

[0040] like Figure 1 As shown, the liquid inlet 16 of the base 1 can be connected to the liquid inlet pipe 14 extending outward, one end of the liquid inlet pipe 14 is integrally connected to the base 1, and the other end is provided with a flange, and a filter 6 is fixedly connected through the flange. The filter 6 is connected to the underpressure pipeline, and can filter impurities in the underpressure liquid 9 to prevent the impurities from damaging the components inside the liquid pressurizing device.

[0041] Optionally, the balancing container 2 is made of rubber material and can be elastically expanded in the liquid storage chamber 15. Of course, the balancing container 2 can also be made of other materials such as silicone, flexible plastic, etc. The balancing container 2 is sealed to the diverter cover 3 to prevent the underpressure liquid 9 from mixing with the working liquid 8.

[0042] The booster mechanism 4 also includes a diaphragm 43, a diaphragm seat 44 and a diaphragm cover 45. Figure 3As shown, the diaphragm seat 44 and the diaphragm cover 45 are fixedly connected in the boosting chamber 42 of the cylinder body 41, and the diaphragm 43 is sealed and detachably fixedly connected and installed between the diaphragm seat 44 and the diaphragm cover 45. The diaphragm 43 divides the boosting chamber 42 into a first boosting chamber 421 and a second boosting chamber 422. The first boosting chamber 421 stores working liquid 8, and the second boosting chamber 422 is connected to the second liquid inlet channel 12 and the liquid outlet channel 13 of the base 1.

[0043] An inlet check valve 46 is arranged between the second boosting chamber 422 and the second liquid inlet channel 12, and a liquid outlet check valve 47 is arranged between the second boosting chamber 422 and the liquid outlet channel 13. The under-pressure liquid 9 can only enter the second boosting chamber 422 from the second liquid inlet channel 12 through the inlet check valve 46. After the under-pressure liquid 9 in the second boosting chamber 422 reaches a predetermined pressure, it enters the liquid outlet channel 13 through the liquid outlet check valve 47.

[0044] The underpressure liquid 9 in the second liquid inlet channel 12 enters the second boosting chamber 422 through the liquid inlet one-way valve 46, and the driving mechanism 5 provides pressure to the working liquid 8 in the first boosting chamber 421. The pressure of the working liquid 8 is transmitted to the underpressure liquid 9 in the second boosting chamber 422 through the diaphragm 43. After the underpressure liquid 9 reaches the predetermined pressure, it enters the liquid outlet channel 13 through the liquid outlet one-way valve 47 and is discharged out of the base 1 through the liquid outlet channel 13.

[0045] The driving mechanism 5 includes a plunger 51 disposed in the cylinder body 41. Figure 1 As shown, the plunger 51 can move axially in the cylinder body 41, with one end of the plunger 51 entering the first boosting chamber 421 and the other end entering the first liquid storage chamber 151 of the base 1. The plunger 51 is connected to the cylinder body 41 in a sliding seal, thereby separating the first boosting chamber 421 and the first liquid storage chamber 151. The working liquid 8 in the first liquid storage chamber 151 generates back pressure on the plunger 51, so that the pressure of the working liquid 8 in the first boosting chamber 421 is consistent with that of the working liquid 8 in the first liquid storage chamber 151. After being acted upon by an external force, the plunger 51 moves toward the first boosting chamber 421, thereby increasing the pressure of the working liquid 8 in the first boosting chamber 421.

[0046] The driving mechanism 5 also includes a motor 52 and a transmission shaft 53. Figure 1As shown, the motor 52 drives the plunger 51 to move via the transmission shaft 53. A shell 7 can be added to the base 1 to provide sufficient installation space for the motor 52 and the transmission shaft 53, and to facilitate disassembly and maintenance. The shell 7 and the base 1 can be sealed and detachably fixedly connected via a flange. The interior of the shell 7 is connected to the first liquid storage chamber 151 of the base 1 and can serve as an extension of the first liquid storage chamber 151. The motor 52 and the transmission shaft 53 are assembled inside the shell 7, i.e., in the first liquid storage chamber 151, and are immersed in the working liquid 8, which can avoid the use of the rotating sealing mechanism 56, thereby reducing the possibility of leakage of the working liquid 8 due to seal failure. In addition, the part where the transmission shaft 53 is connected to the plunger 51 is immersed in the working liquid 8, which can also reduce wear and increase the service life.

[0047] A high-voltage sealed power supply seat 71 is also installed on the shell 7. The high-voltage sealed power supply seat 71 is connected to the motor 52 through electric wires. The external power supply can supply power to the motor 52 through the high-voltage sealed seat.

[0048] Specifically, Figures 1 to 3 As shown, the transmission shaft 53 is installed in the housing 7 through a bearing and can rotate around its own axis. One end of the transmission shaft 53 is fixedly connected to the output shaft of the motor 52 through a coupling, and the other end is fixedly connected to an eccentric cam 531. The cam 531 contacts the end of the plunger 51 extending into the first liquid storage chamber 151. The end of the plunger 51 away from the cam 531 is equipped with a return spring 54. After the motor 52 is started, the transmission shaft 53 is driven to rotate. When the transmission shaft 53 rotates, the cam 531 intermittently overcomes the elastic force of the return spring 54 to push the plunger 51 to move toward the cylinder body 41. Under the joint action of the transmission shaft 53 and the return spring 54, the plunger 51 realizes reciprocating motion in the cylinder body 41, intermittently increases the pressure in the first boost chamber 421, and transmits the pressure to the under-pressure liquid 9 in the second boost chamber 422 through the diaphragm 43.

[0049] like Figure 5 As shown, the boosting mechanism 4 can be provided with at least two groups, and evenly distributed in the circumferential direction of the base 1, so as to improve the working efficiency of the liquid boosting device. Accordingly, the number of plungers 51 of the driving mechanism 5 is the same as that of the boosting mechanism 4, and the plungers 51 are arranged in a one-to-one correspondence with the cylinders 41 of the boosting mechanism 4, and the cam 531 on the transmission shaft 53 drives all the plungers 51 to move at the same time. In the embodiment of the present application, the boosting mechanism 4 is provided in three groups.

[0050] The implementation principle of the liquid boosting device of the present application is as follows: after the under-pressure liquid 9 is filtered by the filter 6, it reaches the liquid inlet 16 of the base 1 through the liquid inlet pipe 14, a part of the under-pressure liquid 9 enters the first liquid inlet channel 11 through the liquid inlet 16, and then enters the balancing container 2, and another part of the under-pressure liquid 9 enters the second liquid inlet channel 12 through the liquid inlet 16, and then reaches the liquid outlet 17, and enters the second boosting chamber 422 of the boosting mechanism 4 through the liquid inlet one-way valve 46; the pressure of the under-pressure liquid 9 in the balancing container 2 can be transmitted to the working liquid 8 in the first liquid storage chamber 151 and the second liquid storage chamber 152 of the base 1, forming a back pressure consistent with the pressure of the under-pressure liquid 9 on the plunger 51 of the driving mechanism 5, So that the under-pressure liquid 9 can maintain its original pressure after entering the second boosting chamber 422; after starting the motor 52 of the driving mechanism 5, the motor 52 drives the plunger 51 to move through the transmission shaft 53, and the plunger 51 reciprocates in the cylinder body 41 under the action of the cam 531 and the return spring 54, intermittently increasing the pressure of the working fluid 8 in the first boosting chamber 421, and the diaphragm 43 transfers the pressure in the first boosting chamber 421 to the under-pressure liquid 9 in the second boosting chamber 422, so that the under-pressure liquid 9 starts to be pressurized on the basis of the original pressure. When the pressure rises to a predetermined level, the under-pressure liquid 9 can enter the liquid outlet channel 13 of the base 1 through the liquid outlet one-way valve 47 and be discharged through the liquid outlet channel 13. The liquid boosting device of the present application effectively utilizes the original pressure of the under-pressure liquid 9, and further boosts the pressure on the basis of the original pressure of the under-pressure liquid 9, thereby improving the boosting efficiency, saving the energy consumed by the driving mechanism 5, and reducing the production cost; in addition, during maintenance, the liquid boosting device does not need to relieve pressure when high-pressure water is injected into the well, saving a lot of time and labor costs.

[0051] Embodiment 2

[0052] Compared with the first embodiment, the second embodiment is different in that the installation structure of the motor 52 of the driving mechanism 5 is different. In order to make the text concise, the similarities between the second embodiment and the first embodiment are not repeated.

[0053] Specifically, Figure 5 As shown, the driving mechanism 5 may also include a reducer 55, and the motor 52 and the reducer 55 are both installed outside the housing 7. The output end of the motor 52 is fixedly connected to the input end of the reducer 55, and a sealing mechanism 56 is provided on the housing 7. The output end of the reducer 55 is connected to the end of the base 1 through the rotating sealing mechanism 56, so that the output end of the reducer 55 and the base 1 are rotated and sealed. The output end of the reducer 55 extends into the first liquid storage chamber 151 and is fixedly connected to the end of the transmission shaft 53 away from the plunger 51. After the motor 52 is decelerated and torque-increased by the reducer 55, it drives the transmission shaft 53 to rotate, thereby driving the plunger 51 to move.

[0054] Installing the motor 52 outside the housing 7 can reduce the requirements on the pressure resistance of the motor 52, and an asynchronous motor 52 can be used, thereby reducing costs.

[0055] The preferred specific implementation modes and embodiments of the present application are described in detail above in conjunction with the accompanying drawings, but the present application is not limited to the above implementation modes and embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the concept of the present application.

Claims

1. A liquid pressurizing device, It is characterized in that include A base (1) having a first liquid inlet channel (11), a second liquid inlet channel (12), a liquid outlet channel (13) and a liquid storage chamber (15) which are arranged in isolation from each other; a balancing container (2), which is arranged in the liquid storage cavity (15) and is connected to the first liquid inlet channel (11); the balancing container (2) is flexible so as to balance the internal pressure of the first liquid inlet channel (11) and the internal pressure of the liquid storage cavity (15); A pressurizing mechanism (4), comprising a pressurizing chamber (42) which is in communication with the second liquid inlet channel (12) and the liquid outlet channel (13) and is separated from the liquid storage chamber (15) of the base (1); A driving mechanism (5) is connected to the liquid storage chamber (15) of the base (1) and is configured to provide pressure to the pressurizing chamber (42) so as to pump the liquid in the pressurizing chamber (42) out through the liquid outlet channel (13).

2. The liquid pressurizing device according to claim 1, It is characterized in that A flow divider cover (3) is arranged in the base (1), the balancing container (2) is fixedly connected to the flow divider cover (3), and the first liquid inlet channel (11) and the second liquid inlet channel (12) are both arranged in the flow divider cover (3).

3. The liquid pressurizing device according to claim 2, It is characterized in that The flow dividing cover (3) divides the liquid storage chamber (15) into a first liquid storage chamber (151) and a second liquid storage chamber (152); the flow dividing cover (3) is provided with a connecting channel (31) connecting the first liquid storage chamber (151) and the second liquid storage chamber (152); the driving mechanism (5) is connected to the first liquid storage chamber (151); and the balancing container (2) is located in the second liquid storage chamber (152).

4. The liquid pressurizing device according to claim 1, It is characterized in that The balancing container (2) is made of rubber material.

5. The liquid pressurizing device according to any one of claims 1 to 4, It is characterized in that The boosting mechanism (4) further comprises a cylinder body (41) fixedly connected to the base (1); the boosting chamber (42) is arranged in the cylinder body (41); the driving mechanism (5) comprises a plunger (51) located in the cylinder body (41); one end of the plunger (51) enters the boosting chamber (42) and the other end enters the liquid storage chamber (15).

6. The liquid pressurizing device according to any one of claims 1 to 4, It is characterized in that The boost chamber (42) comprises a first boost chamber (421) and a second boost chamber (422) which are separated by a diaphragm (43) and transmit pressure, and the second boost chamber (422) is connected to the second liquid inlet channel (12); the driving mechanism (5) provides pressure to the first boost chamber (421) to pump out the liquid in the second boost chamber (422) through the liquid outlet channel (13).

7. The liquid pressurizing device according to claim 6, It is characterized in that A liquid inlet one-way valve (46) is provided between the second pressurizing chamber (422) and the second liquid inlet channel (12), and liquid can only enter the second pressurizing chamber (422) from the second liquid inlet channel (12) through the liquid inlet one-way valve (46).

8. The liquid pressurizing device according to claim 6, It is characterized in that A liquid outlet one-way valve (47) is provided between the second pressurizing chamber (422) and the liquid outlet channel (13); after the liquid in the second pressurizing chamber (422) reaches a predetermined pressure, the liquid enters the liquid outlet channel (13) through the liquid outlet one-way valve (47).

9. The liquid pressurizing device according to claim 6, It is characterized in that A diaphragm seat (44) and a diaphragm cover (45) are fixedly connected in the boost chamber (42), and the diaphragm (43) is detachably fixedly connected between the diaphragm seat (44) and the diaphragm cover (45).

10. The liquid pressurizing device according to claim 5, It is characterized in that The driving mechanism (5) also includes A motor (52) mounted on the base (1); A transmission shaft (53), which is disposed in the liquid storage chamber (15) and rotates around its own axis, one end of which is transmission-connected to the motor (52), and the other end of which is eccentrically disposed and connected to the plunger (51); The motor (52) drives the transmission shaft (53) to rotate, and when the transmission shaft (53) rotates, the eccentric end thereof drives the plunger (51) to move.

11. The liquid pressurizing device according to claim 10, It is characterized in that The base (1) is detachably connected to a shell (7), the interior of the shell (7) is connected to the liquid storage chamber (15) of the base (1), and the motor (52) is installed inside the shell (7).

12. The liquid pressurizing device according to claim 10, It is characterized in that The driving mechanism (5) further comprises a reducer (55); the motor (52) and the reducer (55) are both mounted outside the liquid storage chamber (15) of the base (1); the output end of the motor (52) is connected to the input end of the reducer (55); the output end of the reducer (55) is sealed to the end of the base (1) via a sealing mechanism (56) and is connected to the transmission shaft (53) in the liquid storage chamber (15).

13. The liquid pressurizing device according to claim 12, It is characterized in that The base (1) is detachably connected to a shell (7), the interior of the shell (7) is connected to the liquid storage chamber (15) of the base (1), and the motor (52) and the reducer (55) are installed outside the shell (7).

14. The liquid pressurizing device according to claim 1, It is characterized in that The boosting mechanisms (4) are provided in at least two groups and are evenly distributed in the circumferential direction of the base (1).

15. The liquid pressurizing device according to claim 1, It is characterized in that The input end of the first liquid inlet channel (11) is connected to a filter (6).

Images