CN214368097U - Automatic reversing valve control system capable of switching pneumatic booster pump - Google Patents
Automatic reversing valve control system capable of switching pneumatic booster pump Download PDFInfo
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- CN214368097U CN214368097U CN202120264962.3U CN202120264962U CN214368097U CN 214368097 U CN214368097 U CN 214368097U CN 202120264962 U CN202120264962 U CN 202120264962U CN 214368097 U CN214368097 U CN 214368097U
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- 239000007788 liquid Substances 0.000 claims abstract description 23
- 238000010586 diagram Methods 0.000 description 14
- 238000010304 firing Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 239000003566 sealing material Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
A switchable automatic reversing valve control system of a pneumatic booster pump comprises the pneumatic booster pump, a pilot valve and a reversing valve, wherein the pilot valve is divided into a left pilot valve and a right pilot valve, the pneumatic booster pump comprises a driving cylinder, the left side of the upper part of the driving cylinder is connected with the left pilot valve, the right side of the lower part of the driving cylinder is connected with the right pilot valve, the middle part of the driving cylinder is provided with a driving piston, the driving piston slides in the driving cylinder, the left side of the driving piston is a rodless driving cavity, the right side of the driving piston is a rod driving cavity, the rodless driving cavity lower part is respectively connected with a rodless driving cylinder exhaust inlet through a pipeline, the rod driving cavity lower part is respectively connected with a rod driving cylinder exhaust inlet a through a pipeline, the right side of the driving piston is connected with a pressurizing piston through a piston connecting rod, the right side of the pressurizing piston is a pressurizing cylinder, the upper part of the pressurizing cylinder is connected with a liquid discharge one-way valve, and the lower part of the pressurizing cylinder is connected with a liquid inlet one-way valve.
Description
Technical Field
The invention relates to the field of valve control systems, in particular to an automatic reversing valve control system of a switchable pneumatic booster pump.
Background
In engineering practice, high-pressure gas is often applied in the field of pressure from tens of megapascals to hundreds of megapascals, and a pneumatic booster pump is generally used for boosting the gas to a required pressure, and the high-pressure gas can also be applied in the field of liquid boosting such as pumping oil. The pneumatic booster pump usually takes compressed air as a driving source, so that the starting booster pump has the advantages of small volume, safety, explosion prevention, stepless regulation of output pressure and flow and high lift. Pneumatic booster pumps are produced by a plurality of manufacturers in Europe, America and China, but the existing pneumatic booster pumps are in a double-stroke gas supply mode that both a pressure stroke and a suction stroke provide driving gas, and the driving gas which does work is generally directly discharged into the atmosphere, so that the pneumatic booster pumps have huge gas consumption, waste energy and increase cost.
At present, a plurality of reversing valves with different structures are researched at home and abroad, but the existing reversing valves are driven by external force, and an external air source is needed to drive a valve core to move relative to a valve body, so that the reversing valves are complex in structure and low in stability. The existing gas-liquid booster pump is basically driven by high-pressure air, a reversing valve control system is designed aiming at the air, a valve body and a valve core are made of metal materials, and nitrile rubber is adopted for sealing. The existing sealing material cannot be used for Freon and other media used as high-pressure driving gas, and the sealing failure or the blocking effect of a piston is not ideal.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides an automatic reversing valve control system of a switchable pneumatic booster pump.
The purpose of the invention is realized by the following technical scheme:
a switchable automatic reversing valve control system of a pneumatic booster pump comprises the pneumatic booster pump, a pilot valve and a reversing valve, wherein the pilot valve is divided into a left pilot valve and a right pilot valve, the pneumatic booster pump comprises a driving cylinder, the left side of the upper part of the driving cylinder is connected with the left pilot valve, the right side of the lower part of the driving cylinder is connected with the right pilot valve, the middle part of the driving cylinder is provided with a driving piston, the driving piston slides in the driving cylinder, the left side of the driving piston is a rodless driving cavity, the right side of the driving piston is a rod driving cavity, the lower part of the rodless driving cavity is connected with a rodless driving cylinder exhaust inlet through a pipeline respectively, the lower part of the rod-containing driving cavity is connected with a rod driving cylinder exhaust inlet a through a pipeline respectively, the right side of the driving piston is connected with a supercharging piston through a piston connecting rod, the right side of the supercharging piston is a supercharging cylinder, the upper part of the supercharging cylinder is connected with a liquid discharge one-way valve, and the lower part of the supercharging cylinder is connected with a liquid inlet one-way valve;
the reversing valve comprises a valve body, wherein a left end cover is arranged on the left side of the valve body, a valve core small-area end driving gas inlet is formed in the middle of the left end cover, a right end cover is arranged on the right side of the valve body, a valve core large-area end driving gas inlet is formed in the middle of the right end cover, the valve core small-area end driving gas inlet is connected with a left pilot valve through a pipeline, the valve core large-area end driving gas inlet is connected with the right pilot valve through a pipeline, a rodless driving cylinder exhaust inlet is formed in the left side of the upper portion of the valve body, a valve core cavity is formed in the middle of the valve core cavity, the valve core slides in the valve core cavity, a rod driving cylinder exhaust inlet a is formed in the right side of the upper portion of the valve body, a rod driving cylinder exhaust inlet b is formed in the right side of the rod driving cylinder exhaust inlet a, a mode switching cavity is formed in the upper portion of the rod driving cylinder exhaust inlet b, and a mode switching cavity is connected with the rodless driving cylinder exhaust inlet, a rod driving cylinder exhaust inlet a rod driving cylinder, The exhaust inlets b of the rod driving cylinders are communicated, the mode switching cavity is connected with a mode switching control pull rod, the mode switching control pull rod slides in the mode switching cavity, the mode switching control pull rod comprises a cross pull rod, the left end of the cross pull rod is connected with a left end stop block, the middle part of the cross pull rod is connected with a middle stop block, and the right end of the cross pull rod penetrates through the right end cover; the left side of the lower part of the valve body is provided with a rodless driving cylinder exhaust outlet, the right side of the lower part of the valve body is provided with a rod driving cylinder exhaust outlet b, the right side of the rodless driving cylinder exhaust outlet is provided with a high-pressure driving gas inlet, the right side of the high-pressure driving gas inlet is provided with a rod driving cylinder exhaust outlet a, the rod driving cylinder exhaust outlet b, the rod driving cylinder exhaust outlet a, the high-pressure driving gas inlet and the rodless driving cylinder exhaust outlet are communicated with a valve core cavity, and the driving gas inlet is connected with an air compressor.
The pilot valve comprises a valve body, a spring, a piston and a firing pin, wherein the piston is arranged in the middle of the valve body, an air inlet is formed in the upper part of the valve body, an air outlet is formed in the lower part of the valve body, the spring is arranged on the left side of the valve body, and the firing pin is connected to the right side of the valve body;
the valve core comprises a valve rod, the left end of the valve rod is connected with a left end piston, the right end of the valve rod is connected with a right end piston, the middle part of the valve rod is connected with a middle part piston, the sectional area of the left end piston is the same as that of the middle part piston, and the sectional area of the left end piston is smaller than that of the right end piston.
Has the advantages that:
1. the switchable and reversible valve control system provided by the invention is directly driven by the air source of the high-pressure air inlet, does not need an external air source, is simple in structure, and effectively saves the manufacturing and using cost. The gas supply mode can be manually switched according to different pressurized media, the switching between single-stroke gas supply and double-stroke gas supply at any time is realized, the consumption of high-pressure gas is greatly saved, and the use cost is saved.
2. The valve body and the seal designed by the invention are made of polytetrafluoroethylene materials, so that the system can be applied to a system taking Freon gas as a driving gas source, and the durability of the pilot valve and the reversing valve is prevented from being corroded and enhanced. Meanwhile, the mass of the valve core is reduced, and the consumption of driving gas can be reduced to a certain extent.
Drawings
FIG. 1 is a schematic diagram of a pneumatic booster pump according to the present invention.
FIG. 2 is a schematic diagram of a single-stroke gas-supply energy-saving pneumatic booster pump according to the present invention.
Fig. 3 is a schematic diagram of a pilot valve structure according to the present invention.
Fig. 4 is a schematic diagram of a structure of the pilot valve piston at the right position according to the present invention.
Fig. 5 is a schematic diagram of a left position structure of the pilot valve piston according to the present invention.
Fig. 6 is a schematic diagram of the structure of the reversing valve.
FIG. 7 is a schematic diagram of a structure in which the booster pump of the present invention is in a two-stroke air supply mode and the spool of the reversing valve is located at the left position.
FIG. 8 is a schematic diagram of a structure in which the booster pump of the present invention is in a two-stroke air supply mode and the spool of the reversing valve is located at the right position.
FIG. 9 is a schematic diagram of a structure in which the booster pump of the present invention is in a single-stroke air supply mode and the spool of the reversing valve is located at the left position.
FIG. 10 is a schematic diagram of the structure of the booster pump in the single-stroke air supply mode with the valve core of the reversing valve at the right position.
Detailed Description
The invention is explained in more detail below with reference to the figures and examples:
a switchable automatic reversing valve control system of a pneumatic booster pump comprises the pneumatic booster pump, a pilot valve and a reversing valve 1, wherein the pilot valve is divided into a left pilot valve 2 and a right pilot valve 3, the pneumatic booster pump comprises a driving cylinder 6, the left pilot valve 2 is connected to the left side of the upper part of the driving cylinder 6, the right pilot valve 3 is connected to the right side of the lower part of the driving cylinder 6, a driving piston 7 is arranged in the middle of the driving cylinder 6, the driving piston 7 slides in the driving cylinder 6, a rodless driving cavity 4 is arranged on the left side of the driving piston 7, a rod driving cavity 5 is arranged on the right side of the driving piston 7, the lower part of the rodless driving cavity 4 is respectively connected with a rodless driving cylinder exhaust inlet 92 through a pipeline, the lower part of the rod driving cavity 5 is respectively connected with a rod driving cylinder exhaust inlet a94 through a pipeline, the right side of the driving piston 7 is connected with a booster piston 10 through a piston connecting rod 8, the right side of the booster piston 10 is a booster cylinder 9, the upper part of the booster cylinder 9 is connected with a liquid discharge one-way valve 11, the lower part of the booster cylinder 9 is connected with a liquid inlet one-way valve 12;
the reversing valve 1 comprises a valve body 93, a left end cover 91 is arranged on the left side of the valve body 93, a valve core small-area end driving gas inlet 914 is arranged in the middle of the left end cover 91, a right end cover 97 is arranged on the right side of the valve body 93, a valve core large-area end driving gas inlet 98 is arranged in the middle of the right end cover 97, the valve core small-area end driving gas inlet 914 is connected with a left pilot valve 2 through a pipeline, the valve core large-area end driving gas inlet 98 is connected with a right pilot valve 3 through a pipeline, a rodless driving cylinder exhaust inlet 92 is arranged on the left side of the upper part of the valve body 93, a valve core cavity 90 is arranged in the middle of the valve body 93, a valve core 913 is arranged in the middle of the valve core cavity 90, the valve core 913 slides in the valve core cavity 90, a rod driving cylinder exhaust inlet a94 is arranged on the right side of the upper part of the valve body 93, a rod driving cylinder exhaust inlet a94 is provided with a rod driving cylinder exhaust inlet b96, a mode switching cavity 900 is arranged on the upper part of the rod driving cylinder exhaust inlet b96, a mode switching cavity 900 is connected with the rodless driving cylinder exhaust inlet 92, a mode switching cavity, The exhaust inlet a94 of the rod-driven cylinder and the exhaust inlet b96 of the rod-driven cylinder are communicated, the mode switching cavity 900 is connected with the mode switching control pull rod 95, the mode switching control pull rod 95 slides in the mode switching cavity 900, the mode switching control pull rod 95 comprises a cross pull rod 920, the left end of the cross pull rod is connected with a left end stop block 921, the middle part of the cross pull rod is connected with a middle stop block 922, and the right end of the cross pull rod penetrates through the right end cover 97; the left side of the lower part of the valve body 93 is provided with a rodless driving cylinder exhaust outlet 912, the right side of the lower part of the valve body 93 is provided with a rod driving cylinder exhaust outlet b99, the right side of the rodless driving cylinder exhaust outlet 912 is provided with a high-pressure driving gas inlet 911, the right side of the high-pressure driving gas inlet 911 is provided with a rod driving cylinder exhaust outlet a910, the rod driving cylinder exhaust outlet b99, the rod driving cylinder exhaust outlet a910, the high-pressure driving gas inlet 911 and the rodless driving cylinder exhaust outlet 912 are all communicated with the valve core cavity 90, and the driving gas inlet 911 is connected with an air compressor.
The pilot valve comprises a valve body 81, a spring 82, a piston 83 and a firing pin 86, wherein the piston 83 is arranged in the middle of the valve body, an air inlet 84 is arranged at the upper part of the valve body, an air outlet 85 is arranged at the lower part of the valve body, the spring 82 is arranged at the left side of the valve body, and the firing pin 86 is connected to the right side of the valve body;
the valve core 913 includes a valve rod 930, the left end of the valve rod is connected to a left end piston 931, the right end of the valve rod is connected to a right end piston 933, the middle of the valve rod is connected to a middle piston 932, the sectional area of the left end piston is the same as that of the middle piston, and the sectional area of the left end piston is smaller than that of the right end piston.
Fig. 1 is a schematic diagram of a pneumatic booster pump, and the working process of the pneumatic booster pump is as follows: when the air source is connected, the P provides driving pressure, the reversing valve 1 is positioned at the left position, the driving gas enters the rodless driving cavity 4 through the opening A of the reversing valve (a rodless driving cylinder exhaust inlet 92) to push the piston 7 to move rightwards to carry out a compression stroke, and the liquid in the pressurizing cylinder 9 is pressed to a high-pressure liquid end through the liquid discharge one-way valve 11. In this process, the gas in the rod-driven chamber 5 is discharged through the port B (rod-driven cylinder exhaust inlet port a 94) of the pneumatically-controlled directional valve 1. When the air compressor runs to the tail end of a compression stroke, the driving piston 7 touches the right pilot valve 3, so that the right pilot valve is positioned at a left position, the large-area end on the right side of the reversing valve 1 is ventilated, and the reversing valve 1 is switched to a right position. The driving gas enters the rod driving cavity 5 through the port B of the reversing valve 1, the piston 7 is pushed to move left to start a liquid suction stroke, and the low-pressure liquid enters the pressurizing cylinder 9 through the one-way valve 12. The driving piston 7 touches the left pilot valve 2 when moving to the end of the suction stroke,
FIG. 2 is a schematic diagram of a single-stroke gas-supply energy-saving pneumatic booster pump, which is used for supplying driving gas in the suction stroke and the compression stroke, but does not work in the suction process under no load. After the pressurized fluid enters the pressurizing cylinder 9 through the one-way valve 12, certain thrust is exerted on the piston 10, and particularly when the pressurized fluid is gas, the thrust effect is more obvious. The suction stroke may be performed by only the thrust of the pressurized gas to the piston 10 without supplying the booster pump with the driving gas. The structure improvement of the reversing valve is adopted to realize that the pneumatic booster pump provides driving force by the high-pressure gas source during the compression stroke, the high-pressure gas source is cut off during the suction stroke, and the suction stroke is completed only by the pressure of the pressurized gas. Therefore, the single-stroke air supply of the pneumatic booster pump can be realized, and the high-pressure gas consumption is reduced by half.
A set of pneumatic booster pump pneumatic valve control system is designed aiming at the two working conditions, and the system consists of two pilot valves and a reversing valve. Two control modes can be realized by manually adjusting the pull rod. When the pressurized fluid is liquid, the double-stroke gas supply driving can be realized, when the pressurized fluid is gas, the single-stroke gas supply can be switched, the high-pressure gas source is cut off in the gas suction stroke, the gas suction stroke is completed through the action of the pressurized gas on the piston 10, and the consumption of driving gas is saved.
Fig. 3 shows a schematic diagram of a pilot valve structure, which is composed of a pilot valve body 81, a spring 82, a piston 83, and a striker 86. Normally the piston 83 is in the right position (fig. 4) due to the action of the spring 82, the pilot valve closing gas cannot pass through. When the booster pump moves to the end of the stroke and impacts the striker so that the piston 83 is in the left position, pilot conduction gas can pass through. The booster pump piston is moved away from the striker to return the piston 83 by the action of the spring 82.
FIG. 6 is a schematic diagram of a designed reversing valve, which mainly comprises a valve body and a valve core; the valve core small area end driving gas inlet 914 of the left end cover, the valve core large area end driving gas inlet 98 of the right end cover and the pilot valve are connected to periodically introduce high-pressure working gas. The valve core consists of three pistons and valve rods, and the sectional area of the piston at the left end is smaller than that of the piston at the right end. The mode switching control pull rod can realize the switching of double-stroke and single-stroke air supply driving modes.
The booster pump shown in fig. 7 has the control link 5 positioned at the left position and the valve core of the reversing valve positioned at the left position, the high-pressure driving gas enters the rodless driving chamber 4 of the booster pump through the driving gas inlet 911 and the exhaust inlet 92 of the rodless driving cylinder, the piston of the booster pump makes a rightward stroke, and the gas in the rod chamber is exhausted through the exhaust inlet a94 and the exhaust outlet a910 of the rod driving cylinder. The piston of the booster pump continuously moves rightwards to the tail end of the stroke and touches the firing pin of the pilot valve, the pilot valve is communicated with the large-area end of the right side of the reversing valve and is communicated with high-pressure driving gas and air, the high-pressure driving gas at the right end of the reversing valve is released, the high-pressure driving gas at the left end of the reversing valve drives the valve core to move rightwards, so that the reversing valve is positioned at the right position,
as shown in fig. 8, the control rod 5 is positioned at the left position, the booster pump is in a double-stroke gas supply mode, the valve core of the reversing valve is positioned at the right position, high-pressure driving gas enters a rod driving cavity of the booster pump through a driving gas inlet 911 and a rod driving cylinder exhaust inlet a94, the piston of the booster pump makes a left stroke, and gas in a rodless cavity is exhausted through a rodless driving cylinder exhaust inlet 92 and a rodless driving cylinder exhaust outlet 912. And the piston of the booster pump continuously moves leftwards until the tail end of the stroke touches the pilot valve firing pin, the pilot valve is switched on, the large-area end on the right side of the reversing valve is communicated with high-pressure driving gas, and the high-pressure driving gas driving valve core at the right end of the reversing valve moves leftwards, so that the valve core of the reversing valve returns to the left position.
The control link 95 shown in figure 9 is in the right position, the booster pump is in the single-stroke gas supply mode, the reversing valve spool is in the left position, high pressure drive gas enters the rodless drive chamber of the booster pump through the drive gas inlet 911 and the rodless drive cylinder exhaust inlet 92, the booster pump piston makes a rightward stroke, and gas in the rod chamber is exhausted through the rod drive cylinder exhaust inlet b96 and the rod drive cylinder exhaust outlet b 99. The piston of the booster pump continuously moves rightwards to the tail end of the stroke and touches the firing pin of the pilot valve, the pilot valve is communicated with the large-area end of the right side of the reversing valve and is communicated with high-pressure driving gas and air, the high-pressure driving gas at the right end of the reversing valve is released, the high-pressure driving gas at the left end of the reversing valve drives the valve core to move rightwards, so that the reversing valve is positioned at the right position,
as shown in fig. 10, the booster pump is in the single-stroke air supply mode with the control link 95 at the right position, the spool of the reversing valve is at the right position, the piston of the booster pump makes a leftward stroke by the action of the pressurized air, and the air in the rodless chamber is exhausted through the rodless cylinder exhaust inlet 92 and the rodless cylinder exhaust outlet 912. And the piston of the booster pump continuously moves leftwards until the tail end of the stroke touches the pilot valve firing pin, the pilot valve is switched on, the large-area end on the right side of the reversing valve is communicated with high-pressure driving gas, and the high-pressure driving gas driving valve core at the right end of the reversing valve moves leftwards, so that the valve core of the reversing valve returns to the left position.
The invention relates to an automatic reversing valve control system of a pneumatic booster pump, which mainly comprises a reversing valve and two pilot valves. The reversing valve mainly comprises a valve body, a valve core, an end cover and a control pull rod. The valve body is provided with an air inlet hole and an air outlet hole, and the control pull rod can control the single-stroke air supply and the double-stroke air supply of the booster pump to switch operation. Two pistons are arranged on a valve core of the reversing valve and are driven by high-pressure gas to block different gas inlets and gas outlets at different left and right positions so as to realize the switching of the driving gas in a rod driving cavity and a rodless driving cavity of the booster pump.
According to the invention, the pilot valve is switched on by the action of the driving piston of the driving pump on the pilot valve firing pin, the pilot valve is reset through the spring after the driving piston 7 leaves, and the pilot valve is closed. The left pilot valve and the right pilot valve are controlled to be opened and closed through the striker so as to control the on-off of high-pressure driving gas at the left end and the right end of the reversing valve, so that the left and right positions of the reversing valve are controlled, the intermittent ventilation and exhaust of the rod driving cavity and the rodless driving cavity are realized, and the pressurizing piston is driven to move left and right to absorb liquid and discharge liquid.
The system can manually switch single-stroke air supply and double-stroke air supply by controlling the pull rod through mode switching aiming at different liquid media to be added. When the pressurized medium is liquid, the double-stroke gas supply is adopted, and liquid suction and liquid discharge are driven by high-pressure gas. When the pressurized medium is gas, the gas has a certain pressure, an air suction stroke does not need to be driven by high-pressure gas, and the gas is driven by the high-pressure gas only during exhaust pressurization, so that the mode can be manually switched into a single-stroke gas supply mode, and the high-pressure gas is supplied only during an exhaust stroke. This saves fifty percent of the high pressure gas source consumption when the medium being pressurized is a gas. When the pressurized medium is liquid, the two-stroke gas supply is switched, the pump does not need to be changed, and the universality of the pneumatic booster pump is improved. The air source driving of the high-pressure driving air inlet is directly utilized, an external air source is not needed, the structure is simple, and the manufacturing and using cost is effectively saved.
Claims (4)
1. The utility model provides a changeable pneumatic booster pump automatic reversing valve control system which characterized by: the pneumatic booster pump comprises a pneumatic booster pump, a pilot valve and a reversing valve, wherein the pilot valve is divided into a left pilot valve and a right pilot valve, the pneumatic booster pump comprises a driving cylinder, the left side of the upper part of the driving cylinder is connected with the left pilot valve, the right side of the lower part of the driving cylinder is connected with the right pilot valve, a driving piston is arranged in the middle of the driving cylinder and slides in the driving cylinder, the left side of the driving piston is a rodless driving cavity, the right side of the driving piston is a rod driving cavity, the rodless driving cavity lower part is respectively connected with a rodless driving cylinder exhaust inlet through a pipeline, the rod driving cavity lower part is respectively connected with a rod driving cylinder exhaust inlet a through a pipeline, the right side of the driving piston is connected with a pressurizing piston through a piston connecting rod, the right side of the pressurizing piston is a pressurizing cylinder, the upper part of the pressurizing cylinder is connected with a liquid discharge one-way valve, and the lower part of the pressurizing cylinder is connected with a liquid inlet one-way valve.
2. The automatic reversing valve control system of the switchable pneumatic booster pump according to claim 1, wherein the reversing valve comprises a valve body, the left side of the valve body is provided with a left end cover, the middle part of the left end cover is provided with a valve core small-area end driving gas inlet, the right side of the valve body is provided with a right end cover, the middle part of the right end cover is provided with a valve core large-area end driving gas inlet, the valve core small-area end driving gas inlet is connected with the left pilot valve through a pipeline, the valve core large-area end driving gas inlet is connected with the right pilot valve through a pipeline, the left side of the upper part of the valve body is provided with a rodless driving cylinder exhaust inlet, the middle part of the valve body is provided with a valve core cavity, the valve core slides in the valve core cavity, the right side of the upper part of the valve body is provided with a rod driving cylinder exhaust inlet a, the right side of the rod driving cylinder exhaust inlet a is provided with a rod driving cylinder exhaust inlet b, the upper part of the rod driving cylinder exhaust inlet b is provided with a mode switching cavity, the mode switching cavity is communicated with the exhaust inlet of the rodless driving cylinder, the exhaust inlet a of the rod driving cylinder and the exhaust inlet b of the rod driving cylinder, the mode switching cavity is connected with the mode switching control pull rod, the mode switching control pull rod slides in the mode switching cavity, the mode switching control pull rod comprises a cross pull rod, the left end of the cross pull rod is connected with a left end stop block, the middle part of the cross pull rod is connected with a middle stop block, and the right end of the cross pull rod penetrates through a right end cover; the left side of the lower part of the valve body is provided with a rodless driving cylinder exhaust outlet, the right side of the lower part of the valve body is provided with a rod driving cylinder exhaust outlet b, the right side of the rodless driving cylinder exhaust outlet is provided with a high-pressure driving gas inlet, the right side of the high-pressure driving gas inlet is provided with a rod driving cylinder exhaust outlet a, the rod driving cylinder exhaust outlet b, the rod driving cylinder exhaust outlet a, the high-pressure driving gas inlet and the rodless driving cylinder exhaust outlet are communicated with a valve core cavity, and the driving gas inlet is connected with an air compressor.
3. The automatic reversing valve control system of the switchable pneumatic booster pump as claimed in claim 1, wherein the pilot valve comprises a valve body, a spring, a piston and a striker, the piston is arranged in the middle of the valve body, an air inlet is arranged at the upper part of the valve body, an air outlet is arranged at the lower part of the valve body, the spring is arranged at the left side of the valve body, and the striker is connected to the right side of the valve body.
4. The automatic reversing valve control system of the switchable pneumatic booster pump as claimed in claim 2, wherein the valve core comprises a valve rod, the left end of the valve rod is connected with a left end piston, the right end of the valve rod is connected with a right end piston, the middle part of the valve rod is connected with a middle part piston, the sectional area of the left end piston is the same as that of the middle part piston, and the sectional area of the left end piston is smaller than that of the right end piston.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120264962.3U CN214368097U (en) | 2021-01-30 | 2021-01-30 | Automatic reversing valve control system capable of switching pneumatic booster pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120264962.3U CN214368097U (en) | 2021-01-30 | 2021-01-30 | Automatic reversing valve control system capable of switching pneumatic booster pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214368097U true CN214368097U (en) | 2021-10-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120264962.3U Expired - Fee Related CN214368097U (en) | 2021-01-30 | 2021-01-30 | Automatic reversing valve control system capable of switching pneumatic booster pump |
Country Status (1)
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| CN (1) | CN214368097U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321439A (en) * | 2021-12-29 | 2022-04-12 | 湖北三江航天红峰控制有限公司 | Automatic reversing valve |
| CN115479009A (en) * | 2022-08-16 | 2022-12-16 | 江苏省肿瘤医院 | Gas booster for pneumatic pipeline transmission system of hospital |
-
2021
- 2021-01-30 CN CN202120264962.3U patent/CN214368097U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321439A (en) * | 2021-12-29 | 2022-04-12 | 湖北三江航天红峰控制有限公司 | Automatic reversing valve |
| CN114321439B (en) * | 2021-12-29 | 2023-10-03 | 湖北三江航天红峰控制有限公司 | Automatic reversing valve |
| CN115479009A (en) * | 2022-08-16 | 2022-12-16 | 江苏省肿瘤医院 | Gas booster for pneumatic pipeline transmission system of hospital |
| CN115479009B (en) * | 2022-08-16 | 2024-05-31 | 江苏省肿瘤医院 | Gas booster for pneumatic pipeline transmission system of hospital |
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