CN210196555U - Negative pressure magnetic pneumatic control composite valve for gas-liquid mixed transportation - Google Patents
Negative pressure magnetic pneumatic control composite valve for gas-liquid mixed transportation Download PDFInfo
- Publication number
- CN210196555U CN210196555U CN201920617781.7U CN201920617781U CN210196555U CN 210196555 U CN210196555 U CN 210196555U CN 201920617781 U CN201920617781 U CN 201920617781U CN 210196555 U CN210196555 U CN 210196555U
- Authority
- CN
- China
- Prior art keywords
- cavity
- valve
- channel
- communicated
- branch pipe
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Magnetically Actuated Valves (AREA)
Abstract
The utility model discloses a negative pressure magnetic force gas accuse combination valve is failed to gas-liquid. The rotating speed of the vacuum pump is controlled through the pressure sensor, and faults are easy to occur. One end of a branch pipe channel of the magnetic drive valve is communicated with the output end of the branch pipe, and the other end of the branch pipe channel is communicated with the bottom of a spherical valve core action cavity of the magnetic drive valve; one bottom end of an inter-valve channel of the magnetic drive valve is communicated with the branch pipe channel; the spherical magnetic valve core is arranged in the conical hole of the spherical valve core action cavity; the magnetic block divides the magnetic block mounting hole into an upper chamber and a lower chamber; the side wall of the lower chamber is communicated with the branch pipe channel through a first pressure channel, and the side wall of the upper chamber is provided with an air exhaust channel; the valve body is provided with two containing cavity groups which are symmetrically arranged. The utility model discloses after access vacuum generating device's inflow mouth and transfer line, do not adopt any electrical components, just can spray the fluid infusion for vacuum generating device automatically when the negative pressure descends, avoid vacuum generating device to work when not having the medium and generate heat to lead to damaging.
Description
Technical Field
The utility model belongs to the technical field of fluid transport, concretely relates to negative pressure magnetic force gas accuse combination valve is failed to gas-liquid.
Background
The vacuum system is applied to the fields of petroleum and petrochemical vacuum scum removal, railway vacuum pollution discharge and the like. In the prior art, the rotating speed of a vacuum pump is controlled by a pressure sensor, and the vacuum degree is improved by increasing the rotating speed of the vacuum pump or adding liquid into the vacuum pump when the vacuum degree is reduced; however, the sensitivity of the electrical components such as the sensor is affected because the environment inside the vacuum pump has the characteristics of strong corrosivity and high humidity. Therefore, the development of the negative-pressure magnetic pneumatic control combination valve capable of automatically adding water during negative pressure reduction without adopting any electrical element has important significance.
Disclosure of Invention
The utility model aims at providing a gas-liquid mixed transportation negative pressure magnetic force gas accuse combination valve to prior art not enough.
The utility model comprises a branch pipe (1), a compensation pressure stabilizing tank (2), a valve body (7) and a magnetic drive valve (10); the magnetic drive valve (10) is made of non-metal materials and is made of transparent materials; the input end of the branch pipe (1) is fixed with a pressure stabilizing damping nozzle (3); the pressure stabilizing damping nozzle (3) is provided with a damping hole; the pipe section of the branch pipe (1) arranged in the compensation pressure stabilizing tank (2) consists of a vertical section close to the input end of the branch pipe (1) and a horizontal section far away from the input end of the branch pipe (1); the opening (4) on the side wall of the horizontal section is communicated with the compensation pressure stabilizing tank (2). One end of a branch pipe channel (10-1) of the magnetically driven valve (10) is communicated with the output end of the branch pipe (1), and the other end of the branch pipe channel is communicated with the bottom of a spherical valve core acting cavity (10-2) of the magnetically driven valve (10); the bottom end of a first valve channel (10-3) of the magnetic driven valve (10) is communicated with a branch pipe channel (10-1); the spherical magnetic valve core (10-4) is arranged in a conical hole of the spherical valve core action cavity (10-2); the sliding rod (10-7) is fixed in a magnetic block mounting hole (10-5) of the magnetically driven valve (10), and the bottom end of the magnetic block mounting hole (10-5) is provided with a blank cap; the blank cap is connected with the magnetic drive valve (10) through a bolt, and a sealing ring is arranged between the blank cap and the magnetic drive valve (10); the magnetic block (10-6) and the sliding rod (10-7) form a sliding pair, and a sealing ring is arranged between the side part of the magnetic block (10-6) and the side wall of the magnetic block mounting hole (10-5); the magnetic block (10-6) divides the magnetic block mounting hole (10-5) into an upper chamber and a lower chamber; the side wall of the lower cavity is communicated with the branch pipe channel (10-1) through a first pressure channel (10-8), and the side wall of the upper cavity is provided with an air exhaust channel (10-10); the air pumping port of the air pumping channel is provided with a valve inside; the pressure in the air pumping channel is 0 kpa; a ruler (10-9) is fixed on the side of the magnetic drive valve (10).
The valve body (7) is provided with two cavity groups which are symmetrically arranged; the cavity group comprises a first cavity (7-1), a second cavity (7-2), a third cavity (7-3), a fourth cavity (7-4), a fifth cavity (7-5), a first valve rod slide way (7-6), a second valve rod slide way (7-7), a second pressure channel (7-8) and a liquid supplementing port (7-9) which are sequentially arranged from bottom to top; the first accommodating cavity (7-1) is separated from the second accommodating cavity (7-2) through a first elastic sheet; the bottom surface of the first accommodating cavity (7-1) and the first elastic sheet are respectively fixed with two ends of the first spring (7-10); the first spring (7-10) is a pressure spring; the top of the second accommodating cavity (7-2) is communicated with the bottom of the first valve rod slide way (7-6), and an atmosphere input channel is formed in the side wall of the second accommodating cavity (7-2); the first valve rod slide way (7-6) and the first valve rod form a sliding pair, and the conical shaft section of the first valve rod is matched with the conical hole of the first valve rod slide way (7-6); the bottom end of the valve rod is fixed with the elastic sheet I; a sealing plate is fixed at the top end of the valve rod slide way I (7-6), the accommodating cavity III (7-3) and the accommodating cavity IV (7-4) are separated by an elastic sheet II, and the elastic sheet II and the sealing plate are respectively fixed with two ends of a spring II (7-12); the second spring (7-12) is a pressure spring; the valve rod slide way II (7-7) is arranged between the top of the cavity IV (7-4) and the bottom of the cavity V (7-5); the second valve rod slide way (7-7) and the second valve rod form a sliding pair, and the bottom end of the second valve rod is fixed with the second elastic sheet; a sealing ring is arranged at the position of the second valve rod slideway (7-7); the side wall of the valve rod slide way I (7-6) is communicated with the side wall of the accommodating cavity IV (7-4) through a pressure channel II (7-8); the fluid infusion port (7-9) is communicated with the top end of the cavity five; the first accommodating cavities (7-1) of the two accommodating cavity groups are communicated through a first connecting channel, the third accommodating cavities of the two accommodating cavity groups are communicated through a second connecting channel, and the fourth accommodating cavities of the two accommodating cavity groups are communicated through a third connecting channel; dampers are arranged at two ports of the second connecting channel and the third connecting channel; the first connecting channel, the second connecting channel and the third connecting channel are communicated through the fourth connecting channel.
The top end of a first cavity (7-1) of one cavity group is communicated with the top end of a first valve channel (10-3) of the magnetically driven valve (10) through a third pressure channel (7-13), and the pre-pressure of a first spring (7-10) in the first cavity of the cavity group is smaller than that of a first spring (7-10) in the first cavity of the other cavity group; the third pressure channel (7-13) is communicated with the top opening of the compensation pressure stabilizing tank (2) through a first pipeline (5); the second accommodating cavity (7-2) of one accommodating cavity group is communicated with the top of the spherical valve core acting cavity (10-2) of the magnetically driven valve (10) through a second valve channel (7-11); the bottom of the compensation pressure stabilizing tank is provided with two symmetrically arranged liquid outlets; the liquid supplementing port (7-9) of one of the cavity groups is communicated with two liquid outlets of the compensation pressure stabilizing tank through a second pipeline (6), and the liquid supplementing port (7-9) of the other cavity group is connected with a supplementing joint; liquid outlets formed in the side walls of the five chambers of the two chamber groups are connected with a third pipeline (8), and each third pipeline (8) is provided with a check valve (9).
Furthermore, the side wall openings of the horizontal section of the branch pipe (1) are three and uniformly distributed along the circumferential direction, and the axis of one side wall opening is vertically arranged; the cross-sectional area of the opening of the side wall with the vertical axis is larger than that of the openings of the other two side walls.
The utility model discloses beneficial effect who has:
1. the utility model discloses after access vacuum generating device's inflow mouth and transfer line, just can spray the fluid infusion for vacuum generating device automatically when the negative pressure descends, avoid vacuum generating device to work when not having the medium and generate heat to lead to damaging.
2. The utility model discloses do not adopt any electrical components, but pure mechanical structure, under the strong and big environment of humidity of corrosivity, the time is long again also difficult to break down.
3. The utility model can provide liquid back flushing rapidly; and when no fluid infusion is carried out in the compensation pressure stabilizing tank, the supplement joint provides another rapid fluid infusion channel.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of the middle valve body and the magnetically driven valve of the present invention.
Detailed Description
The present invention will be further explained with reference to the drawings and the embodiments.
As shown in fig. 1 and 2, the negative pressure magnetic pneumatic control combination valve for gas-liquid mixed transportation comprises a branch pipe 1, a compensation pressure stabilizing tank 2, a valve body 7 and a magnetic driving valve 10; the magnetically driven valve 10 is made of non-metal materials and is made of transparent materials; the input end of the branch pipe 1 is fixed with a pressure stabilizing damping nozzle 3; the pressure stabilizing damping nozzle 3 is provided with a damping hole; the pipe section of the branch pipe 1 arranged in the compensation pressure stabilizing tank 2 consists of a vertical section close to the input end of the branch pipe 1 and a horizontal section far away from the input end of the branch pipe 1; the horizontal segment side wall opening 4 communicates with the compensating surge tank 2. One end of a branch pipe channel 10-1 of the magnetically driven valve 10 is communicated with the output end of the branch pipe 1, and the other end is communicated with the bottom of a spherical valve core acting cavity 10-2 of the magnetically driven valve 10; the bottom end of a first valve channel 10-3 of the magnetic driven valve 10 is communicated with a branch pipe channel 10-1; the spherical magnetic valve core 10-4 is arranged in a conical hole of the spherical valve core action cavity 10-2; the sliding rod 10-7 is fixed in a magnetic block mounting hole 10-5 of the magnetic drive valve 10, and a blank cap is arranged at the bottom end of the magnetic block mounting hole 10-5; the blank cap is connected with the magnetically driven valve 10 through a bolt, and a sealing ring is arranged between the blank cap and the magnetically driven valve 10; the magnetic block 10-6 and the slide bar 10-7 form a sliding pair, and a sealing ring is arranged between the side part of the magnetic block 10-6 and the side wall of the magnetic block mounting hole 10-5; the magnetic block 10-6 divides the magnetic block mounting hole 10-5 into an upper chamber and a lower chamber; the side wall of the lower cavity is communicated with the branch pipe passage 10-1 through the first pressure passage 10-8, and the side wall of the upper cavity is provided with an air suction passage 10-10; the air pumping port of the air pumping channel is provided with a valve inside; the pressure in the air pumping channel is 0 kpa; a straight ruler 10-9 is fixed on the side of the magnetic drive valve 10 and used for measuring the displacement of the magnetic block 10-6.
The valve body 7 is provided with two containing cavity groups which are symmetrically arranged; the cavity group comprises a cavity I7-1, a cavity II 7-2, a cavity III 7-3, a cavity IV 7-4, a cavity V7-5, a valve rod slide way I7-6, a valve rod slide way II 7-7, a pressure channel II 7-8 and a fluid infusion port 7-9 which are sequentially arranged from bottom to top; the first accommodating cavity 7-1 and the second accommodating cavity 7-2 are separated by a first elastic sheet; the bottom surface of the first accommodating cavity 7-1 and the first elastic sheet are respectively fixed with two ends of a first spring 7-10; the first spring 7-10 is a compression spring; the top of the second accommodating cavity 7-2 is communicated with the bottom of the first valve rod slide way 7-6, and an atmosphere input channel is formed in the side wall of the second accommodating cavity 7-2; the first valve rod slideway 7-6 and the first valve rod form a sliding pair, and the conical shaft section of the first valve rod is matched with the conical hole of the first valve rod slideway 7-6; the bottom end of the valve rod is fixed with the elastic sheet I; a sealing plate is fixed at the top end of the first valve rod slide way 7-6, the third accommodating cavity 7-3 and the fourth accommodating cavity 7-4 are separated by two elastic pieces, and the second elastic piece and the sealing plate are respectively fixed with two ends of a second spring 7-12; the second springs 7-12 are compression springs; the valve rod slide way II 7-7 is arranged between the top of the cavity IV 7-4 and the bottom of the cavity V7-5; the second valve rod slideway 7-7 and the second valve rod form a sliding pair, and the bottom end of the second valve rod is fixed with the second elastic sheet; a sealing ring is arranged at the position 7-7 of the second valve rod slideway; the side wall of the valve rod slide way I7-6 is communicated with the side wall of the accommodating cavity IV 7-4 through a pressure channel II 7-8; the fluid infusion ports 7-9 are communicated with the top ends of the cavity five; the first accommodating cavities 7-1 of the two accommodating cavity groups are communicated through a first connecting channel, the third accommodating cavities of the two accommodating cavity groups are communicated through a second connecting channel, and the fourth accommodating cavities of the two accommodating cavity groups are communicated through a third connecting channel; dampers are arranged at two ports of the second connecting channel and the third connecting channel; the first connecting channel, the second connecting channel and the third connecting channel are communicated through the fourth connecting channel.
The top end of a channel I10-3 between the valve of the magnetically driven valve 10 and the cavity I7-1 of one cavity group are communicated through a pressure channel III 7-13, and the pre-pressure of a spring I7-10 in the cavity I of the cavity group is smaller than the pre-pressure of a spring I7-10 in the cavity I of the other cavity group; the pressure channel III 7-13 is communicated with the top opening of the compensation surge tank 2 through a pipeline I5; the second accommodating cavity 7-2 of one accommodating cavity group is communicated with the top of the spherical valve core acting cavity 10-2 of the magnetically driven valve 10 through a second valve channel 7-11; the bottom of the compensation pressure stabilizing tank is provided with two symmetrically arranged liquid outlets; the liquid supplementing port 7-9 of one of the cavity groups is communicated with two liquid outlets of the compensation pressure stabilizing tank through a second pipeline 6, and the liquid supplementing port 7-9 of the other cavity group is connected with a supplementing joint; liquid outlets formed in the side walls of the five chambers of the two chamber groups are connected with the third pipeline 8, and a check valve 9 is arranged on each third pipeline 8.
The side wall openings of the horizontal section of the branch pipe 1 are three and uniformly distributed along the circumferential direction, and the axis of one side wall opening is vertically arranged; the cross-sectional area of the opening of the side wall with the vertical axis is larger than that of the openings of the other two side walls.
The working principle of the negative pressure magnetic pneumatic control combination valve for gas-liquid mixed transportation is as follows:
the pipeline III 8 is connected with an inflow port of a vacuum generating device (such as a vacuum pump), and the branch pipe 1 is connected with a transfusion pipe; when the vacuum generating device normally provides negative pressure a (the negative pressure a can reach more than 70kpa as required), the negative pressures in the compensation surge tank 2, the separation liquid storage tank 3, the first accommodating cavity 7-1, the third accommodating cavity 7-3, the fourth accommodating cavity 7-4 and the fifth accommodating cavity 7-5 are equal and are all a, and the spherical magnetic valve core 10-4, the first valve rod and the second valve rod are all closed; when the compensation liquid in the vacuum generating device is reduced to a negative pressure less than a, the negative pressure of the magnetic block mounting hole 10-5 is quickly equal to the negative pressure provided by the vacuum generating device, the pressure difference between the magnetic block mounting hole 10-5 and the air pumping channel 10-10 is increased, the magnetic block 10-6 rises, and the spherical magnetic valve core 10-4 is opened; when the atmosphere enters the first cavity, the negative pressure in the first cavity is reduced, the pressure in the second cavity is still atmospheric pressure, the pressure difference between the first cavity and the second cavity is reduced, and the first valve rod is opened; after the valve rod I is opened, the negative pressure in the cavity IV is reduced, the pressure difference between the cavity IV and the cavity III is increased, and the valve rod II is opened; after the negative pressure in the compensation pressure stabilizing tank is influenced by the atmospheric pressure, the negative pressure is smaller than the negative pressure in the cavity V, and the liquid in the compensation pressure stabilizing tank and the liquid at the supplement joint are sprayed into the vacuum generating device through the cavity V to supplement the liquid for the vacuum generating device; however, due to the action of the dampers at the two ports of the second connecting channel and the third connecting channel and the pre-pressure difference of the springs I7-10, the valve rod II at the position of the supplement joint is opened slowly, and the time for the liquid injection of the supplement joint to enter the vacuum generating device is lagged behind the time for the liquid injection in the compensation pressure stabilizing tank to enter the vacuum generating device; wherein, when no liquid exists in the compensation pressure stabilizing tank, the supplement joint independently supplies liquid to the vacuum generating device; when the liquid sprayed enters the vacuum generating device, the negative pressure of the liquid conveying pipe returns to a, the spherical magnetic valve core 10-4 is closed first, the negative pressure of the first cavity gradually returns to a, and the first valve rod and the second valve rod are both closed. In the operation process of the vacuum generating device, liquid to be conveyed continuously enters the liquid conveying pipe, and a part of the liquid enters the compensation pressure stabilizing tank to form compensation liquid.
Claims (2)
1. The utility model provides a gas-liquid thoughtlessly transports negative pressure magnetic force gas accuse combination valve, includes branch pipe (1), compensation surge tank (2) and valve body (7), its characterized in that: also comprises a magnetic drive valve (10); the magnetic drive valve (10) is made of non-metal materials and is made of transparent materials; the input end of the branch pipe (1) is fixed with a pressure stabilizing damping nozzle (3); the pressure stabilizing damping nozzle (3) is provided with a damping hole; the pipe section of the branch pipe (1) arranged in the compensation pressure stabilizing tank (2) consists of a vertical section close to the input end of the branch pipe (1) and a horizontal section far away from the input end of the branch pipe (1); the opening (4) on the side wall of the horizontal section is communicated with the compensation pressure stabilizing tank (2); one end of a branch pipe channel (10-1) of the magnetically driven valve (10) is communicated with the output end of the branch pipe (1), and the other end of the branch pipe channel is communicated with the bottom of a spherical valve core acting cavity (10-2) of the magnetically driven valve (10); the bottom end of a first valve channel (10-3) of the magnetic driven valve (10) is communicated with a branch pipe channel (10-1); the spherical magnetic valve core (10-4) is arranged in a conical hole of the spherical valve core action cavity (10-2); the sliding rod (10-7) is fixed in a magnetic block mounting hole (10-5) of the magnetically driven valve (10), and the bottom end of the magnetic block mounting hole (10-5) is provided with a blank cap; the blank cap is connected with the magnetic drive valve (10) through a bolt, and a sealing ring is arranged between the blank cap and the magnetic drive valve (10); the magnetic block (10-6) and the sliding rod (10-7) form a sliding pair, and a sealing ring is arranged between the side part of the magnetic block (10-6) and the side wall of the magnetic block mounting hole (10-5); the magnetic block (10-6) divides the magnetic block mounting hole (10-5) into an upper chamber and a lower chamber; the side wall of the lower cavity is communicated with the branch pipe channel (10-1) through a first pressure channel (10-8), and the side wall of the upper cavity is provided with an air exhaust channel (10-10); the air pumping port of the air pumping channel is provided with a valve inside; the pressure in the air pumping channel is 0 kpa; a ruler (10-9) is fixed on the side part of the magnetic drive valve (10);
the valve body (7) is provided with two cavity groups which are symmetrically arranged; the cavity group comprises a first cavity (7-1), a second cavity (7-2), a third cavity (7-3), a fourth cavity (7-4), a fifth cavity (7-5), a first valve rod slide way (7-6), a second valve rod slide way (7-7), a second pressure channel (7-8) and a liquid supplementing port (7-9) which are sequentially arranged from bottom to top; the first accommodating cavity (7-1) is separated from the second accommodating cavity (7-2) through a first elastic sheet; the bottom surface of the first accommodating cavity (7-1) and the first elastic sheet are respectively fixed with two ends of the first spring (7-10); the first spring (7-10) is a pressure spring; the top of the second accommodating cavity (7-2) is communicated with the bottom of the first valve rod slide way (7-6), and an atmosphere input channel is formed in the side wall of the second accommodating cavity (7-2); the first valve rod slide way (7-6) and the first valve rod form a sliding pair, and the conical shaft section of the first valve rod is matched with the conical hole of the first valve rod slide way (7-6); the bottom end of the valve rod is fixed with the elastic sheet I; a sealing plate is fixed at the top end of the valve rod slide way I (7-6), the accommodating cavity III (7-3) and the accommodating cavity IV (7-4) are separated by an elastic sheet II, and the elastic sheet II and the sealing plate are respectively fixed with two ends of a spring II (7-12); the second spring (7-12) is a pressure spring; the valve rod slide way II (7-7) is arranged between the top of the cavity IV (7-4) and the bottom of the cavity V (7-5); the second valve rod slide way (7-7) and the second valve rod form a sliding pair, and the bottom end of the second valve rod is fixed with the second elastic sheet; a sealing ring is arranged at the position of the second valve rod slideway (7-7); the side wall of the valve rod slide way I (7-6) is communicated with the side wall of the accommodating cavity IV (7-4) through a pressure channel II (7-8); the fluid infusion port (7-9) is communicated with the top end of the cavity five; the first accommodating cavities (7-1) of the two accommodating cavity groups are communicated through a first connecting channel, the third accommodating cavities of the two accommodating cavity groups are communicated through a second connecting channel, and the fourth accommodating cavities of the two accommodating cavity groups are communicated through a third connecting channel; dampers are arranged at two ports of the second connecting channel and the third connecting channel; the connecting channel I, the connecting channel II and the connecting channel tee are communicated through a connecting channel IV;
the top end of a first cavity (7-1) of one cavity group is communicated with the top end of a first valve channel (10-3) of the magnetically driven valve (10) through a third pressure channel (7-13), and the pre-pressure of a first spring (7-10) in the first cavity of the cavity group is smaller than that of a first spring (7-10) in the first cavity of the other cavity group; the third pressure channel (7-13) is communicated with the top opening of the compensation pressure stabilizing tank (2) through a first pipeline (5); the second accommodating cavity (7-2) of one accommodating cavity group is communicated with the top of the spherical valve core acting cavity (10-2) of the magnetically driven valve (10) through a second valve channel (7-11); the bottom of the compensation pressure stabilizing tank is provided with two symmetrically arranged liquid outlets; the liquid supplementing port (7-9) of one of the cavity groups is communicated with two liquid outlets of the compensation pressure stabilizing tank through a second pipeline (6), and the liquid supplementing port (7-9) of the other cavity group is connected with a supplementing joint; liquid outlets formed in the side walls of the five chambers of the two chamber groups are connected with a third pipeline (8), and each third pipeline (8) is provided with a check valve (9).
2. The negative-pressure magnetic pneumatic control combination valve for gas-liquid mixed transportation according to claim 1, characterized in that: the side wall openings of the horizontal section of the branch pipe (1) are uniformly distributed along the circumferential direction, and the axis of one side wall opening is vertically arranged; the cross-sectional area of the opening of the side wall with the vertical axis is larger than that of the openings of the other two side walls.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920617781.7U CN210196555U (en) | 2019-04-30 | 2019-04-30 | Negative pressure magnetic pneumatic control composite valve for gas-liquid mixed transportation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920617781.7U CN210196555U (en) | 2019-04-30 | 2019-04-30 | Negative pressure magnetic pneumatic control composite valve for gas-liquid mixed transportation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210196555U true CN210196555U (en) | 2020-03-27 |
Family
ID=69882333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920617781.7U Expired - Fee Related CN210196555U (en) | 2019-04-30 | 2019-04-30 | Negative pressure magnetic pneumatic control composite valve for gas-liquid mixed transportation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210196555U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081210A (en) * | 2019-04-30 | 2019-08-02 | 浙江师范大学 | A kind of gas-liquid delivery negative pressure magnetic strength control combination valve and its control method |
-
2019
- 2019-04-30 CN CN201920617781.7U patent/CN210196555U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081210A (en) * | 2019-04-30 | 2019-08-02 | 浙江师范大学 | A kind of gas-liquid delivery negative pressure magnetic strength control combination valve and its control method |
| CN110081210B (en) * | 2019-04-30 | 2023-12-08 | 浙江师范大学 | Negative pressure magnetic force pneumatic control composite valve for gas-liquid mixed transportation and control method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2875813Y (en) | Ink box of ink jet printing machine and its pressure difference regulating valve | |
| CA2633984A1 (en) | System and method for applying reduced pressure to cell culture | |
| CN210196555U (en) | Negative pressure magnetic pneumatic control composite valve for gas-liquid mixed transportation | |
| CN108016589A (en) | A kind of underwater robot Aeroassisted pumping oil formula buoyancy regulating device | |
| CN110081210B (en) | Negative pressure magnetic force pneumatic control composite valve for gas-liquid mixed transportation and control method thereof | |
| CN210800444U (en) | Automatic negative pressure system is got rid of to gas accuse dross foam | |
| CN201634406U (en) | Device for leading working medium to be placed in split type heat pipe solar flat plate collector | |
| CN202400812U (en) | Filling system | |
| CN207004770U (en) | A kind of minisize fluid conveying device based on piezoelectricity air pump | |
| CN105697434A (en) | High-efficiency energy-accumulation pressure booster | |
| CN102951589B (en) | Apparatus for filling conducting medium into single-hole closed small container | |
| CN2784389Y (en) | Semi-automatic fluid filling machine | |
| CN204783889U (en) | High temperature pressure -increasing valves | |
| CN202252270U (en) | Piston type pulse valve | |
| CN203477437U (en) | Electromagnetic pulse low-pressure diaphragm valve | |
| CN204472782U (en) | A kind of piston type pneumatic control shutoff valve | |
| CN106219477A (en) | Quantitatively vacuum oil-injecting machine | |
| CN208040719U (en) | A kind of supercharging device of fire pump | |
| CN203823133U (en) | Novel high-pressure, two-position, two-way and straight-through type mechanical gas control valve | |
| CN200974767Y (en) | Transferring apparatus for liquid material under negative-pressure condition | |
| CN110094597B (en) | Automatic negative pressure system is got rid of to gas accuse dross foam | |
| CN203052214U (en) | Constant pressure canned method feeding system of chemical industry dosing filling machine | |
| CN2797264Y (en) | Slid valve type air cannon | |
| CN2713189Y (en) | Combined vacuum generator | |
| CN205236436U (en) | Artificial diamond micropowder automatic separation machine vacuum pump station |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200327 |