CN217873136U - High-pressure precise-proportion gas-liquid booster pump - Google Patents
High-pressure precise-proportion gas-liquid booster pump Download PDFInfo
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- CN217873136U CN217873136U CN202221872580.XU CN202221872580U CN217873136U CN 217873136 U CN217873136 U CN 217873136U CN 202221872580 U CN202221872580 U CN 202221872580U CN 217873136 U CN217873136 U CN 217873136U
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Abstract
The utility model discloses a high-pressure precise proportion gas-liquid booster pump, which comprises a gas-liquid booster pump, wherein a plunger is arranged in the gas-liquid booster pump, the plunger divides the gas-liquid booster pump into two cavities, and the gas-liquid booster pump is connected with a first interface and a second interface through pipelines; the gas-liquid booster pump is connected with a second electromagnetic directional valve through a pipeline, and the second electromagnetic directional valve is connected with a driving gas source interface through a pipeline; a cavity body, far away from the plunger head movable cavity, of the gas-liquid booster pump is connected with a first electromagnetic directional valve through a pipeline, the first electromagnetic directional valve is connected with a proportional valve through a pipeline, and the proportional valve is connected with a control gas interface through a pipeline; and the gas-liquid booster pump is connected with a feedback switch, and the feedback switch is connected with the second electromagnetic directional valve. The device combines the proportional valve 5, the feedback switch and the second electromagnetic reversing for use, realizes the control of the extending and retracting positions of the plunger in the pump, ensures that the precision of the pump reaches 0.5 percent of the full range, improves the precision of the pump, and can meet the requirement of a customer on the precision of the pump.
Description
Technical Field
The utility model relates to a booster pump technical field, in particular to accurate proportion gas-liquid booster pump of high pressure.
Background
The gas-liquid booster pump is a pump product which takes compressed air as power to drive an air cylinder to boost liquid, enables the liquid to be continuously output according to a fixed boosting ratio and is used for driving a hydraulic actuator to work on the basis of the area difference principle, and is also called as a pneumatic liquid booster pump, and the boosting ratio in the booster pump determines the maximum output pressure of the pump; the booster pump can be used for providing static and blasting tests for valves, pipe fittings, pressure vessels and the like, static and dynamic tests for aerospace accessories, tests for automobile brake systems and oil nozzles and the like.
At present, a booster pump used in the market is a pilot-operated gas-liquid booster type reciprocating pump, and the booster pump is caused by self load. The pressure difference of 0.15-0.2MPa is usually generated in the inner part of the booster pump, so that the pressure range of the booster pump is narrowed, and the working efficiency is reduced; the booster pump is subjected to pilot control by a reversing valve, a compression plunger piston mechanically reciprocates, the compression and recovery positions cannot be accurately controlled, and the compression plunger piston moves to a limit position when the pump pressure is close to a target value, so that the precision of a pump body is 1.5% of a full range, and the precision requirement of a user cannot be met.
Therefore, the application provides a high-pressure precise proportion gas-liquid booster pump which can control the telescopic position of the compression plunger in the pump body and has high precision and no pressure difference.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a main aim at provides the accurate proportion gas-liquid booster pump of high pressure, has solved the problem that the flexible position of compression plunger is uncontrollable, the precision is low in the gas-liquid booster pump among the prior art.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the high-pressure precise-proportion gas-liquid booster pump comprises a gas-liquid booster pump, wherein a plunger is arranged in the gas-liquid booster pump, the plunger divides the gas-liquid booster pump into two cavities, and the gas-liquid booster pump is connected with a first connector and a second connector through pipelines; the gas-liquid booster pump is connected with a second electromagnetic directional valve through a pipeline, and the second electromagnetic directional valve is connected with a driving gas source interface through a pipeline; a cavity body, far away from the plunger head movable cavity, of the gas-liquid booster pump is connected with a first electromagnetic directional valve through a pipeline, the first electromagnetic directional valve is connected with a proportional valve through a pipeline, and the proportional valve is connected with a control gas interface through a pipeline; and the gas-liquid booster pump is connected with a feedback switch, and the feedback switch is connected with the second electromagnetic directional valve.
Further, the feedback switch comprises a plunger retracting feedback switch and a plunger extending feedback switch, and the plunger retracting feedback switch and the plunger extending feedback switch are respectively connected to two ends of the plunger stroke; the second electromagnetic directional valve is provided with a first electromagnet and a second electromagnet, the plunger retracts a feedback switch signal and is connected with the first electromagnet, and the plunger extends out of the feedback switch signal and is connected with the second electromagnet.
Furthermore, a pressure regulating valve is connected to a pipeline connecting the second electromagnetic directional valve and the driving air source interface.
Furthermore, a shuttle valve is arranged on a pipeline connected with the second electromagnetic directional valve and a cavity of the gas-liquid booster pump, which is far away from the plunger head movable cavity, and the shuttle valve is connected with the first electromagnetic directional valve through a pipeline.
Furthermore, a safety valve is arranged on a pipeline connecting the shuttle valve and the first electromagnetic reversing valve.
Furthermore, a plunger head movable cavity is arranged at the position, located on the plunger head, of the gas-liquid booster pump and is connected with the first interface and the second interface through pipelines.
Furthermore, a one-way valve is arranged on a pipeline connecting the first interface and the plunger head movable cavity; and a one-way valve is also arranged on a pipeline connecting the second interface and the plunger head movable cavity, and the flow directions of the two one-way valves are the same.
Compared with the prior art, the utility model discloses following beneficial effect has:
1. the device can drive the plunger piston in the gas-liquid booster pump to reciprocate through the first electromagnet and the second electromagnet of the second electromagnetic reversing valve and the plunger piston providing the reversing signal of the second electromagnetic reversing valve to stretch out the feedback switch and the pump plunger piston to recover the feedback switch to be matched with each other, so that the plunger piston head is driven to reciprocate in the plunger piston head movable cavity, and liquid can be sucked into the plunger piston head movable cavity and discharged out of the plunger piston head movable cavity.
2. This device all is provided with the check valve on the pipeline of plunger head activity chamber and first interface and the pipeline of plunger head activity chamber and second interface, and the flow direction of two check valves is the same, can avoid liquid reflux to can make the interior suction of plunger head activity chamber the same with exhaust flow at every turn.
3. The device is characterized in that a proportional valve and a first electromagnetic directional valve are connected on a pipeline of a cavity on the second electromagnetic directional valve and the gas-liquid booster pump, and the combination of the proportional valve and the electromagnetic directional valve can continuously and proportionally control the pressure in the cavity on the gas-liquid booster pump remotely, compensate the pressure in the gas-liquid booster pump, ensure that the output pressure is not influenced by load change, and eliminate the pressure difference generated in the gas-liquid booster pump.
4. The device is characterized in that a shuttle valve is arranged on a pipeline between a first electromagnetic directional valve and an upper cavity of the gas-liquid booster pump, the shuttle valve can prevent gas which enters the upper cavity of the gas-liquid booster pump after passing through a second electromagnetic directional valve, and the gas is discharged from the gas-liquid booster pump through the pipeline connected with the first electromagnetic directional valve; or the gas which is introduced into the upper cavity of the gas-liquid booster pump after passing through the first electromagnetic directional valve is prevented from being discharged out of the gas-liquid booster pump through a pipeline connected with the second electromagnetic directional valve; meanwhile, gas in the upper cavity of the gas-liquid booster pump is prevented from being discharged out of the gas-liquid booster pump through a pipeline connected with the second electromagnetic directional valve or the first electromagnetic directional valve, and the pressurization of the liquid by the pump is prevented from being influenced.
5. The device combines the proportional valve, the feedback switch and the second electromagnetic reversing for use, realizes the control of the extending and withdrawing positions of the plunger in the gas-liquid booster pump, can accurately control the switching times of the plunger, improves the precision of the gas-liquid booster pump, enables the precision of the gas-liquid booster pump to reach 0.5 percent of the full range, and enables the device to meet the requirement of a customer on the precision of the pump.
Drawings
FIG. 1 is a system schematic diagram of a high-pressure precise-ratio gas-liquid booster pump;
FIG. 2 is a schematic structural diagram of a high-pressure precision-ratio gas-liquid booster pump;
FIG. 3 is a schematic diagram of a front view structure of the high-pressure precise-ratio gas-liquid booster pump;
FIG. 4 is a schematic diagram of a side view structure of the high-pressure precise-ratio gas-liquid booster pump.
In the figure: 1. a first interface; 2. a drive gas source interface; 3. a control gas interface; 4. a second interface; 5. a proportional valve; 6. a first electromagnetic directional valve; 7. a safety valve; 8. a gas-liquid booster pump; 80. a plunger head movable chamber; 9. a shuttle valve; 10. a plunger retraction feedback switch; 11. the plunger extends out of the feedback switch; 12. a second electromagnetic directional valve; 120. an electromagnet I; 121. an electromagnet II; 13. a one-way valve; 14. a pressure regulating valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the embodiment discloses a high-pressure precise-proportion gas-liquid booster pump, which includes a gas-liquid booster pump 8, a plunger is arranged in the gas-liquid booster pump 8, the plunger divides the interior of the gas-liquid booster pump 8 into an upper cavity and a lower cavity, a plunger head is arranged at the lower end of the plunger, a plunger head movable cavity 80 is arranged in the gas-liquid booster pump 8 and is positioned at the plunger head and along the axial direction of the plunger, and the plunger head is positioned in the plunger head movable cavity 80 and moves up and down in the plunger head movable cavity 80 along with the movement of the plunger; the plunger head movable cavity 80 is connected with a first interface 1 through a pipeline, the port of the first interface 1 can be externally connected with a liquid source, the plunger head movable cavity 80 is also connected with a second interface 4 through a pipeline, and the port of the second interface 4 is externally connected with equipment for pressurized liquid to flow in; in the process that the piston head in the plunger head movable cavity 80 moves upwards, liquid in the liquid source connected to the first connector 1 can be sucked into the plunger head movable cavity 80; during the downward movement of the piston head in the plunger head movable chamber 80, the liquid sucked into the plunger head movable chamber 80 is discharged.
Preferably, a one-way valve 13 is arranged on a pipeline connecting the plunger head movable cavity 80 and the first connector 1, the flow direction of the one-way valve 13 flows from the first connector 1 to the inside of the plunger head movable cavity 80, and the one-way valve 13 can prevent liquid from flowing back to a liquid source through the pipeline connecting the first connector 1 in the process of discharging the liquid from the plunger head movable cavity 80; the pipeline that plunger head activity chamber 80 and second interface 4 are connected also is provided with a check valve 13 on, the flow direction of check valve 13 is from plunger head activity chamber 80 flow direction second interface 4, the flow direction of two check valves 13 is the same, this check valve 13 can prevent that plunger head activity chamber 80 is at the in-process of inhaled liquid, liquid in the pipeline that links to each other with second interface 4, flow back to plunger head activity chamber 80 in through the pipeline, two check valves 13 can make the plunger head activity chamber 80 in every turn inhale with the exhaust flow the same.
Referring to fig. 1, the gas-liquid booster pump 8 is connected with a second electromagnetic directional valve 12, the same-side interface of the second electromagnetic directional valve 12 is respectively connected with an upper cavity and a lower cavity of the gas-liquid booster pump 8 through a pipeline, the other-side interface of the second electromagnetic directional valve 12 is connected with a driving gas source interface 2 through a pipeline, and the driving gas source interface 2 is externally connected with a driving gas source; a first electromagnet 120 and a second electromagnet 121 are arranged in the second electromagnetic directional valve 12, the first electromagnet 120 and the second electromagnet 121 can change a position access which is connected into a connecting pipeline of the second electromagnetic directional valve 12 and the gas-liquid booster pump 8, and the working principle that the first electromagnet 120 and the second electromagnet 121 control the position access in the second electromagnetic directional valve 12 is as follows: when the first electromagnet 120 is electrified, the second electromagnet 121 loses the electricity, and the upper passage in the second electromagnetic directional valve 12 is connected to the gas passage; when the first electromagnet 120 loses power, the second electromagnet 121 gets power, and the lower passage in the second electromagnetic directional valve 12 is connected to the gas path; or the two are not electrified at the same time, and a middle position passage in the second electromagnetic directional valve 12 is connected into the gas passage;
when the first electromagnet 120 is electrified, the second electromagnet 121 is not electrified, the upper passage in the second electromagnetic directional valve 12 is connected into a pipeline between the driving gas source interface 2 and the gas-liquid booster pump 8, gas passing through the driving gas source interface 2 is introduced into the upper cavity of the gas-liquid booster pump 8 through the second electromagnetic directional valve 12, gas in the lower cavity of the gas-liquid booster pump 8 is discharged through the second electromagnetic directional valve 12, the plunger in the gas-liquid booster pump 8 moves downwards, and then the plunger head is driven to move downwards in the plunger head movable cavity 80, and liquid in the plunger head movable cavity 80 is discharged; when the first electromagnet 120 loses power and the second electromagnet 121 gets power, the lower passage in the second electromagnetic directional valve 12 is connected into the pipeline between the driving gas source interface 2 and the gas-liquid booster pump 8, and gas passing through the driving gas source interface 2. The gas in the upper cavity of the gas-liquid booster pump 8 is discharged through the second electromagnetic directional valve 12, the plunger in the gas-liquid booster pump 8 moves upwards, and then the plunger head is driven to move upwards in the plunger head movable cavity 80, so that the liquid is sucked in the plunger head movable cavity 80; when the first electromagnet 120 loses power and the second electromagnet 121 loses power, the middle-position passage on the second electromagnetic directional valve 12 is connected into a pipeline between the driving gas source interface 2 and the gas-liquid booster pump 8, gas cannot be introduced into the upper cavity and the lower cavity of the gas-liquid booster pump 8, and if no other external gas source exists, the plunger in the gas-liquid booster pump 8 stops moving; in this embodiment, the second electromagnetic directional valve 12 is a three-position five-way middle-leakage electromagnetic directional valve.
Preferably, a pressure regulating valve 14 is arranged on a pipeline connecting the driving air source interface 2 and the second electromagnetic directional valve 12, and the pressure regulating valve 14 can regulate the air flowing to the second electromagnetic directional valve 12 through the driving air source interface 2, so that the air introduced into the second electromagnetic directional valve 12 is stabilized at a pressure value.
Referring to fig. 1, a feedback switch is connected to a position, located at the upper end of the plunger, of the gas-liquid booster pump 8, the feedback switch comprises a plunger withdrawing feedback switch 10 and a plunger extending feedback switch 11, the plunger withdrawing feedback switch 10 is connected to the gas-liquid booster pump 8 and located at the highest position of displacement of the upper end of the plunger, the plunger withdrawing feedback switch 10 is in signal connection with a first electromagnet 120 on a second electromagnetic directional valve 12, when the upper end of the plunger reaches the position, located at the plunger withdrawing feedback switch 10, of the plunger, the plunger withdrawing feedback switch 10 enables the first electromagnet 120 to be powered, the position of the second electromagnetic directional valve 12 is switched, a line, through which gas in a driving gas source of the gas-liquid booster pump 8 flows into the gas-liquid booster pump 8, is changed, the moving direction of the plunger in the gas-liquid booster pump 8 is changed, the plunger in the gas-liquid booster pump 8 moves downwards to drive the plunger to move downwards in the plunger head movable chamber 80, and liquid in the plunger head movable chamber 80 is discharged; the plunger extending feedback switch 11 is connected to the gas-liquid booster pump 8 and located at the lowest position of displacement of the upper end of the plunger, the plunger extending feedback switch 11 is in signal connection with the second electromagnet 121 on the second electromagnetic directional valve 12, when the upper end of the plunger reaches the position where the plunger extends the feedback switch 11 downwards, the plunger extends the feedback switch 11 to enable the second electromagnet 121 to be electrified, the position of the second electromagnetic directional valve 12 is switched, a line of gas in a driving gas source of the gas-liquid booster pump 8 flowing into the gas-liquid booster pump 8 is changed, further, the movement direction of the plunger in the gas-liquid booster pump 8 is changed, the plunger in the gas-liquid booster pump 8 is enabled to move upwards, the plunger is driven to move upwards in the plunger head movable cavity 80, and liquid is sucked in the plunger head movable cavity 80; the combined use of the feedback switch and the second electromagnetic directional valve 12 can control the position of the plunger in the gas-liquid booster pump 8, which moves up and down, and can control the position of the plunger, which retracts and extends.
Referring to fig. 1, an upper cavity in the gas-liquid booster pump 8 is connected with a proportional valve 5 through a pipeline, the proportional valve 5 is connected with a control gas interface 3 through a pipeline, and the proportional valve 5 can continuously compensate the pressure in the upper cavity of the gas-liquid booster pump 8 in proportion, so that the output pressure is not influenced by load change; a first electromagnetic directional valve 6 is connected in a pipeline connecting the proportional valve 5 and an upper cavity in the gas-liquid booster pump 8, the first electromagnetic directional valve 6 can control disconnection and conduction of a connecting passage between the proportional valve 5 and the upper cavity in the gas-liquid booster pump 8, when a first electromagnet 120 is de-energized and a second electromagnet 121 is de-energized, a middle passage on a second electromagnetic directional valve 12 is connected into a connecting pipeline between the driving gas source interface 2 and the gas-liquid booster pump 8, an upper passage of the first electromagnetic directional valve 6 is connected into a passage connecting the proportional valve 5 and the upper cavity in the gas-liquid booster pump 8, so that the passage connecting the proportional valve 5 and the upper cavity in the gas-liquid booster pump 8 is conducted, gas passing through the control gas interface 3 is introduced into the upper cavity in the gas-liquid booster pump 8 under the action of the proportional valve 5, a plunger in the gas-liquid booster pump 8 moves downwards until the upper end of the plunger moves downwards to a position where the plunger extends out of the feedback switch 11, the first half electromagnetic directional valve 6 is switched to an initial state, and the passage connecting the proportional valve 5 and the upper cavity in the gas-liquid booster pump 8 is disconnected, so that the proportional valve 5 stops working; the process can eliminate the pressure difference generated by the gas-liquid booster pump 8 in the working process, and improve the working efficiency of the gas-liquid booster pump 8; in the device, the proportional valve 5, the feedback switch and the second electromagnetic directional valve 12 are used in combination, so that the control of the extending and retracting positions of the plunger in the gas-liquid booster pump 8 is realized, the switching times of the plunger can be accurately controlled, the precision of the gas-liquid booster pump 8 is improved, the precision of the gas-liquid booster pump 8 is up to 0.5% of the full range, and the first electromagnetic directional valve 6 in the embodiment is a two-position three-way electromagnetic directional valve.
Preferably, a shuttle valve 9 is arranged on a pipeline connecting the second electromagnetic directional valve 12 and the upper cavity of the gas-liquid booster pump 8, the shuttle valve 9 is also connected with the first electromagnetic directional valve 6 through a pipeline, the shuttle valve 9 has the same function with the one-way valve 13 at the position, so that the gas entering the second electromagnetic directional valve 12 and entering the upper cavity of the gas-liquid booster pump 8 is prevented, and the pressurization of the gas-liquid booster pump 8 on the liquid is influenced through the pipeline connecting the first electromagnetic directional valve 6 and the discharged gas-liquid booster pump 8; the shuttle valve 9 can also prevent gas entering the upper cavity of the gas-liquid booster pump 8 through the proportional valve 5, and the gas is discharged out of the gas-liquid booster pump 8 through a pipeline connected with the second electromagnetic directional valve 12, so that the proportional valve 5 cannot compensate the pressure in the upper cavity of the gas-liquid booster pump 8; meanwhile, in the process of pressurizing liquid, the gas-liquid booster pump 8 is prevented from being damaged due to the fact that insufficient gas is introduced into the upper cavity of the gas-liquid booster pump 8 and the pressure of the liquid is larger than the pressure in the upper cavity of the gas-liquid booster pump 8, so that the plunger in the gas-liquid booster pump 8 is pushed to move upwards, and the gas in the upper cavity of the gas-liquid booster pump 8 is reversely introduced into a pipeline connected with the second electromagnetic directional valve 12 or the first electromagnetic directional valve 6, and an overshoot phenomenon is formed in the gas-liquid booster pump 8.
Furthermore, a safety valve 7 is arranged on a connecting pipeline between the first electromagnetic directional valve 6 and the shuttle valve 9, and when the proportional valve 5 is in a working project and the pressure in the air path is too high, the safety valve 7 can discharge some gas in the air path, reduce the pressure in the air path and protect the air path.
Further, silencers are attached to the second electromagnetic directional valve 12, the first electromagnetic directional valve 6, and the proportional valve 5, and the silencers can reduce noise of the apparatus.
For example, referring to fig. 2 to 4, a mounting bracket is connected to a right end face of the gas-liquid booster pump 8 through a bolt, the mounting bracket can connect the gas-liquid booster pump 8 with other equipment, a mounting bracket is also connected to a left end face of the gas-liquid booster pump 8 through a bolt, a second electromagnetic directional valve 12 is mounted on the left side of the mounting bracket, the second electromagnetic directional valve 12 is connected to the gas-liquid booster pump 8 through a pipeline, a shuttle valve 9 is connected to a connecting pipeline of the second electromagnetic directional valve 12 and an upper cavity of the gas-liquid booster pump 8, the shuttle valve 9 is located at a position close to the upper portion of the left side of the gas-liquid booster pump 8, a first electromagnetic directional valve 6 is connected to the left end of the shuttle valve 9, an integrated valve (which is integrated by a proportional valve 5 and a safety valve 7) is connected to the first electromagnetic directional valve 6 through a pipeline, and the integrated valve is mounted on the left side of the second electromagnetic directional valve 12; the check valve 13 is arranged on a lower end interface of the gas-liquid booster pump 8; a plunger withdrawing feedback switch 10 is installed on the gas-liquid booster pump 8 close to the top, the plunger withdrawing feedback switch 10 is connected with a first electromagnet 120 through a lead, a plunger extending feedback switch 11 is installed at the lower end of the plunger withdrawing feedback switch 10 of the gas-liquid booster pump 8, and the plunger extending feedback switch 11 is connected with a second electromagnet 121 through a lead.
The use process of the device is as follows: the device is fixed on equipment through a mounting frame on a gas-liquid booster pump 8, a gas source is externally connected to a driving gas source interface 2 and a control gas interface 3, a liquid source is externally connected to a first interface 1, a device is externally connected to a second interface 4, the gas-liquid booster pump 8 is electrified, a pressure regulating valve 14 is regulated to 0.2-0.8MPa, a plunger in the gas-liquid booster pump 8 moves downwards through the matching of a proportional valve 5 and a first electromagnetic reversing valve 6, gas in a plunger head movable cavity 80 is discharged, when the upper end head of the plunger moves to the position where the plunger extends out of a feedback switch 11, the first electromagnetic reversing valve 6 can switch a passage, and the passage formed by the proportional valve 5 and the upper cavity of the gas-liquid booster pump 8 is disconnected; meanwhile, the plunger extends out of the feedback switch 11 to give a signal to the second electromagnet 121, the second electromagnet 121 is powered on, the first electromagnet 120 is powered off, the second electromagnetic directional valve 12 is switched to the position of the upper passage, so that the plunger in the gas-liquid booster pump 8 moves upwards, liquid in the liquid source externally connected with the first interface 1 is sucked into the plunger head movable cavity 80, when the upper end head of the plunger moves to the position where the plunger retracts the feedback switch 10, the plunger retracts the feedback switch 10 to give a signal to the first electromagnet 120, the first electromagnet 120 is powered on, the second electromagnet 121 is powered off, the second electromagnetic directional valve 12 is switched to the upper passage, so that the plunger in the gas-liquid booster pump 8 moves downwards, liquid in the plunger head movable cavity 80 is pressurized and discharged, in the pressurizing process, if the upper end head of the plunger does not reach the position where the plunger extends out of the feedback switch 11, and the first electromagnet 120 is powered off, the second electromagnet 121 is not powered on, the second electromagnetic directional valve 12 is switched to the middle passage, the first electromagnetic directional valve 6 is switched to the upper passage, gas controlling the gas of the gas interface 3 to enter the upper cavity of the proportional valve 5, the upper cavity of the plunger 8, the plunger continues to push the plunger to move towards the lower end of the plunger to move towards the second electromagnetic directional valve 12, and the plunger to control the reciprocating movement of the plunger 6, and then the plunger is switched to the position of the plunger to control valve 6, and the plunger to control the reciprocating position of the plunger to control of the plunger piston to control valve 6, and the plunger to control valve to control the plunger to control the reciprocating movement of the plunger to control valve to control the plunger to control the reciprocating movement of the plunger piston.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. The high-pressure precise-proportion gas-liquid booster pump is characterized by comprising a gas-liquid booster pump (8), wherein a plunger is arranged in the gas-liquid booster pump (8), the plunger divides the gas-liquid booster pump (8) into two cavities, and the gas-liquid booster pump (8) is connected with a first connector (1) and a second connector (4) through pipelines; the gas-liquid booster pump (8) is connected with a second electromagnetic directional valve (12) through a pipeline, and the second electromagnetic directional valve (12) is connected with a driving gas source interface (2) through a pipeline; a plunger head movable cavity (80) is arranged in the gas-liquid booster pump (8) and is positioned at the position of the plunger head along the axial direction of the plunger, a first electromagnetic directional valve (6) is connected to a cavity body, far away from the plunger head movable cavity (80), on the gas-liquid booster pump (8) through a pipeline, the first electromagnetic directional valve (6) is connected with a proportional valve (5) through a pipeline, and the proportional valve (5) is connected with a control gas interface (3) through a pipeline; and a feedback switch is connected to the gas-liquid booster pump (8), and the feedback switch is connected with the second electromagnetic directional valve (12).
2. The high-pressure precise-proportion gas-liquid booster pump according to claim 1, wherein the feedback switches comprise a plunger retraction feedback switch (10) and a plunger extension feedback switch (11), and the plunger retraction feedback switch (10) and the plunger extension feedback switch (11) are respectively connected to two ends of a plunger stroke; the second electromagnetic directional valve (12) is provided with a first electromagnet (120) and a second electromagnet (121), the plunger retracts a feedback switch (10) and is connected with the first electromagnet (120), and the plunger extends out of a feedback switch (11) and is connected with the second electromagnet (121).
3. The high-pressure precise-proportion gas-liquid booster pump according to claim 1, wherein a pressure regulating valve (14) is connected to a pipeline connecting the second electromagnetic directional valve (12) and the driving gas source interface (2).
4. The high-pressure precise-proportion gas-liquid booster pump according to claim 1, wherein a shuttle valve (9) is arranged on a pipeline connecting the second electromagnetic directional valve (12) and a cavity body, far away from the plunger head movable cavity (80), of the gas-liquid booster pump (8), and the shuttle valve (9) is connected with the first electromagnetic directional valve (6) through a pipeline.
5. The high-pressure precise-proportion gas-liquid booster pump according to claim 4, wherein a safety valve (7) is arranged on a pipeline connecting the shuttle valve (9) and the first electromagnetic directional valve (6).
6. The high-pressure precise-proportion gas-liquid booster pump according to claim 1, wherein a plunger head movable cavity (80) is arranged on the gas-liquid booster pump (8) at the position of the plunger head, and the plunger head movable cavity (80) is connected with the first interface (1) and the second interface (4) through pipelines.
7. The high-pressure precise-proportion gas-liquid booster pump according to claim 6, wherein a one-way valve (13) is arranged on a pipeline connecting the first connector (1) and the plunger head movable cavity (80); a one-way valve (13) is also arranged on a pipeline connecting the second connector (4) and the plunger head movable cavity (80), and the flow directions of the two one-way valves (13) are the same.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221872580.XU CN217873136U (en) | 2022-07-18 | 2022-07-18 | High-pressure precise-proportion gas-liquid booster pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221872580.XU CN217873136U (en) | 2022-07-18 | 2022-07-18 | High-pressure precise-proportion gas-liquid booster pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217873136U true CN217873136U (en) | 2022-11-22 |
Family
ID=84051969
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221872580.XU Active CN217873136U (en) | 2022-07-18 | 2022-07-18 | High-pressure precise-proportion gas-liquid booster pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217873136U (en) |
-
2022
- 2022-07-18 CN CN202221872580.XU patent/CN217873136U/en active Active
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