CN211936418U - Mixed gas partial pressure distributing device - Google Patents
Mixed gas partial pressure distributing device Download PDFInfo
- Publication number
- CN211936418U CN211936418U CN201922125222.7U CN201922125222U CN211936418U CN 211936418 U CN211936418 U CN 211936418U CN 201922125222 U CN201922125222 U CN 201922125222U CN 211936418 U CN211936418 U CN 211936418U
- Authority
- CN
- China
- Prior art keywords
- reversing valve
- valve
- port
- gas
- air
- 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.)
- Active
Links
Images
Landscapes
- Control Of Fluid Pressure (AREA)
Abstract
The utility model provides a gaseous mixture partial pressure gas distribution device which characterized in that: the automatic pressure-dividing gas distribution device comprises a first manual pressure-dividing gas circuit, a second manual pressure-dividing gas circuit, a first gas inlet channel, a second gas inlet channel, an output gas circuit, an output branch gas circuit, an electric ball valve, a first reversing valve, a second reversing valve, a third reversing valve, a first vacuumizing gas circuit, an automatic pressure-dividing gas distribution gas circuit, a fourth reversing valve, an ITVH2020 high-voltage electric proportional valve, an overflow gas circuit, a second pressure transmitter and a second vacuumizing gas circuit. The utility model relates to an use portable gas filling and distributing device of partial pressure principle design, aerify with the pressure differential of gas, easy operation through the carrier of difference, changes the form, changes the mounting means of each part, can realize miniaturizing and portable carrying, and is small, and light in weight can compensate small-size aerating device's market vacancy.
Description
Technical Field
The utility model belongs to the technical field of the distribution of mist, concretely relates to easy operation's mist partial pressure distributing device.
Background
In order to reduce SF in the power industry6The amount of gas used is gradually increased by SF6The mixed gas is applied to electrical equipment. SF was promoted and used in GIL by national grid corporation in 20166/N2Mixed gas for reducing SF in alpine region of China6The liquefaction temperature of the gas is charged with CF4A gas.
The mixed gas distribution device is based on a dynamic gas distribution principle, controls the gas flow through a mass flow meter, and compresses mixed gas by using a compressor to perform pressurization output. The air distribution device based on the principle has the advantages of large volume, high inflation speed and inconvenience in carrying. For example, the gas charging SF of the three-phase circuit breaker at 550KV of the inner Mongolia Daihai power plant6+CF4The method is characterized in that the method is used for charging a circuit breaker by using a dynamic gas distribution device for 12m high speed labor, wherein the gas distribution device is charged by 41.5Kg +23.9Kg, the time of use is about 30min, and a crane is required for loading and unloading the gas distribution device during site operation. For the gas filling and supplementing of the circuit breaker, a customer needs a portable gas distribution device, two persons can finish loading and unloading through the transportation of a pick-up truck, and the operation can be finished after 4 hours of field gas filling.
Through market research, a gas distribution device which can be carried conveniently and is simple to operate is urgently needed by customers.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve the weak point among the prior art, provide an easy operation's mist partial pressure distributing device.
In order to solve the technical problem, the utility model adopts the following technical scheme: a mixed gas partial pressure gas distribution device comprises a first manual partial pressure gas path, a second manual partial pressure gas path, a first gas inlet channel, a second gas inlet channel, an output gas path, an output branch gas path, an electric ball valve, a first reversing valve, a second reversing valve, a third reversing valve, a first vacuumizing gas path, an automatic partial pressure gas distribution gas path, a fourth reversing valve, an ITVH2020 high-voltage electric proportional valve, an electric ball valve, an overflow gas path, a second pressure transmitter and a second vacuumizing gas path;
the first reversing valve and the second reversing valve are reversing valves with the same structure and are respectively provided with an interface A, an interface B and an interface C, wherein the common end is the interface B, when the first reversing valve and the second reversing valve are electrified, the internal B-C channels are communicated, and when the first reversing valve and the second reversing valve are electrified, the internal B-A channels are communicated;
the third reversing valve is provided with a port A, a port B and a port C, and the B-C channel or the B-A channel inside the third reversing valve can be communicated or both the two channels can be cut off by rotating the valve shaft;
the ITVH2020 high-voltage electric proportional valve is provided with a port A, a port B and a port C, wherein the port A is an input port, the port C is an air distribution output port, and the port B is a residual flow output port;
the first manual pressure-dividing gas path and the second manual pressure-dividing gas path are provided with a first ball valve and a first needle valve, the second pressure-dividing gas path is provided with a second ball valve and a second needle valve, the gas inlet of the first pressure-dividing gas path is communicated with the port C of the first reversing valve, the gas outlet of the first pressure-dividing gas path is communicated with the port C of the third reversing valve, the gas inlet of the second pressure-dividing gas path is communicated with the port C of the second reversing valve, the gas outlet of the second pressure-dividing gas path is communicated with the port A of the third reversing valve, and the first reversing valve is communicated with the port A of the second reversing valve;
a first air inlet joint is arranged at an air inlet of the first air inlet channel, an air outlet is communicated with a common port B of the first reversing valve, a second air inlet joint is arranged at an air inlet of the second air inlet channel, and an air outlet is communicated with the common port B of the second reversing valve;
one end of the output gas path is communicated with a common port B of the third reversing valve, the other end of the output gas path is connected with a gas outlet of the electric ball valve, a first pressure gauge is arranged on the output gas path, a gas outlet of the output branch gas path is provided with an output connector, and a gas inlet is connected to the output gas path;
an air suction port of the first vacuumizing air path is connected to an output air path, an electromagnetic valve, a vacuum pump and a silencer are arranged on the first vacuumizing air path, the air suction port of the vacuum pump is connected with an air outlet of the electromagnetic valve, and an outlet of the vacuum pump is communicated with the silencer;
the air inlets of the automatic pressure-dividing air distribution air path are connected with ports A of a first reversing valve and a second reversing valve, a fourth reversing valve, an ITVH2020 high-voltage electric proportional valve and an electric ball valve are arranged on the automatic pressure-dividing air distribution air path, the structure of the fourth reversing valve is the same as that of the first reversing valve and the second reversing valve, a port B of the fourth reversing valve is that the air inlets of the automatic pressure-dividing air distribution air path are connected with ports A of the first reversing valve and the second reversing valve, a port C of the fourth reversing valve is connected with a port A of the ITVH2020 high-voltage electric proportional valve, a port B of the ITVH2020 high-voltage electric proportional valve is connected with the air inlet of the electric ball valve, the port C of the ITVH2020 high-voltage electric proportional valve is connected with a first vacuum-pumping air path of a vacuum pump outlet through an overflow air path, and a;
one end of the second vacuumizing air path is communicated with the port A of the fourth reversing valve, and the other end of the second vacuumizing air path is connected to the first vacuumizing air path of the vacuum pump air inlet.
The vacuum pump is a diaphragm vacuum pump.
The control lines of the first reversing valve, the second reversing valve, the fourth reversing valve, the electric ball valve, the electromagnetic valve and the ITVH2020 high-voltage electric proportional valve are respectively connected with an output port of the PLC, and the first pressure gauge and the second pressure transmitter are respectively connected with an input port of the PLC.
Introduction of a working mode:
working mode 1: and manually controlling the pressure division and the air distribution.
Firstly, vacuumizing a pipeline.
The first reversing valve and the second reversing valve are not electrified, and the b-c channels inside the first reversing valve and the second reversing valve are communicated. The first manual pressure-dividing gas path is vacuumized, the vacuum pump and the electromagnetic valve are opened, b-c channels of the third reversing valve are communicated, the first ball valve and the first needle valve are opened, the electric ball valve is closed, and whether the vacuumizing is qualified or not is judged by reading the pressure value of the first pressure gauge. And similarly, vacuumizing the second manual pressure-dividing gas path, opening the vacuum pump, the electromagnetic valve and a b-a channel of the third reversing valve, opening the second ball valve and the second needle valve, closing the electric ball valve, and judging whether the vacuumizing is qualified or not by reading the pressure value of the first pressure gauge.
The second step is that: a manual air intake process.
And calculating the partial pressure of the first air inlet channel and the partial pressure of the second air inlet channel according to the inflation pressure and the concentration.
The first manual pressure-dividing gas path divides pressure and admits gas; and opening the first ball valve, closing the b-c channel of the third reversing valve, closing the electromagnetic valve, closing the electric ball valve, adjusting the air inflow through the first needle valve, adjusting according to the pressure value of the first pressure gauge, enabling the standard gas communicated with the first air inlet channel to flow through the output air channel and the output branch air channel, and filling the standard gas into equipment to be inflated (such as a circuit breaker) from the output connector. When the partial pressure is reached, the valve shaft handle is rotated to enable the channel b-a of the third reversing valve to be communicated, the air inlet of the first air inlet channel is closed, and the air inlet of the second air inlet channel is opened. And the second manual partial pressure gas path is used for gas inlet partial pressure in the same way.
The working mode 2 is as follows: and automatically controlling partial pressure and gas distribution.
Firstly, vacuumizing. The first reversing valve, the second reversing valve and the fourth reversing valve are electrified, the b-a channels in the first reversing valve, the second reversing valve and the fourth reversing valve are communicated, the electric ball valve is closed, the third reversing valve is rotated to be closed, the electromagnetic valve and the vacuum pump are opened to vacuumize the pipeline, at the moment, the first vacuumizing gas circuit and the second vacuumizing gas circuit simultaneously pump gas, and whether the vacuumizing is qualified is judged according to the pressure value of the first pressure gauge.
The second step is that: and automatic pressure division and gas distribution. In the automatic pressure-dividing and gas-distributing process, the ITVH2020 high-voltage electric proportional valve can automatically calculate the partial pressure of a first air inlet channel and the partial pressure of a second air inlet channel according to given pressure and concentration.
The first air inlet passage and the second air inlet passage are respectively connected with different standard gases, such as prepared SF6/CF4Mixed gas, the first air inlet passage and the second air inlet passage are respectively connected with SF6Standard gas and CF4A standard gas.
The first intake passage admits air: the first reversing valve is electrified, a channel B-a in the first reversing valve is communicated, the second reversing valve and the fourth reversing valve are not electrified, a channel B-a of the second reversing valve is cut off, a channel B-c of the fourth reversing valve is communicated, the electric ball valve is electrified, the electromagnetic valve is closed, the ITVH2020 high-voltage electric proportional valve automatically controls the port B to output gas to be inflated according to a calculated value until the gas distribution pressure is met, and redundant flow enters a vacuum pumping pipeline from the port c of the ITVH2020 high-voltage electric proportional valve through an overflow pipeline and is exhausted to the atmosphere.
And similarly, automatically controlling the air inlet partial pressure of the second air inlet channel: the second reversing valve is electrified, the channels b-a in the second reversing valve are communicated, the first reversing valve and the fourth reversing valve are not electrified, the channel b-a of the first reversing valve is cut off, the channels b-c of the fourth reversing valve are communicated, the electric ball valve is electrified, the electromagnetic valve is closed, the ITVH2020 high-voltage electric proportional valve controls the second air inlet channel to output the gas to be inflated according to a calculated value until the gas distribution pressure is met, and redundant flow enters the vacuumizing pipeline from the port c of the ITVH2020 high-voltage electric proportional valve through the overflow pipeline and is exhausted into the atmosphere.
The utility model relates to an use portable gas filling and distributing device of partial pressure principle design, aerify with the pressure differential of gas, easy operation through the carrier of difference, changes the form, changes the mounting means of each part, can realize miniaturizing and portable carrying, and most parts such as equipment no compressor are small, and light in weight can compensate small-size aerating device's market vacancy.
Drawings
Fig. 1 is a schematic view of the gas circuit structure of the present invention.
Detailed Description
As shown in fig. 1, a mixed gas partial pressure distribution device includes a first manual partial pressure gas path 1 and a second manual partial pressure gas path 2, a first gas inlet channel 3, a second gas inlet channel 4, an output gas path 5, an output branch gas path 6, an electric ball valve 20, a first reversing valve 17, a second reversing valve 18, a third reversing valve 19, a first vacuumizing gas path 7, an automatic partial pressure gas distribution 8, a fourth reversing valve 26, an ITVH2020 high-voltage electric proportional valve 27, an electric ball valve 20, an overflow gas path 28, a second pressure transmitter 30, and a second vacuumizing gas path 29;
the first reversing valve 17 and the second reversing valve 18 are reversing valves with the same structure, and are respectively provided with an interface A, an interface B and an interface C, wherein the common end is the interface B, when the power is off, the internal B-C channels are communicated, and when the power is on, the internal B-A channels are communicated;
the third reversing valve 19 is provided with a port A, a port B and a port C, and the B-C channel or the B-A channel in the third reversing valve can be communicated or both the B-C channel and the B-A channel can be closed by rotating the valve shaft;
the ITVH2020 high-voltage electric proportional valve 27 is provided with a port A, a port B and a port C, wherein the port A is an input port, the port C is an air distribution output port, and the port B is a residual flow output port;
the gas distribution device comprises a first manual pressure-dividing gas path 1 and a second manual pressure-dividing gas path 2, wherein a first ball valve 11 and a first needle valve 12 are arranged on the first pressure-dividing gas path, a second ball valve 13 and a second needle valve 14 are arranged on the second pressure-dividing gas path, a gas inlet of the first pressure-dividing gas path is communicated with a port C of a first reversing valve 17, a gas outlet of the first pressure-dividing gas path is communicated with a port C of a third reversing valve 19, a gas inlet of the second pressure-dividing gas path is communicated with a port C of a second reversing valve 18, a gas outlet of the second pressure-dividing gas path is communicated with a port A of the third reversing valve 19, and the ports A of the first reversing valve 17 and the second reversing;
the air inlet of the first air inlet channel is connected with a first air inlet joint 15, the air outlet is communicated with a common port B of a first reversing valve 17, the air inlet of the second air inlet channel is connected with a second air inlet joint 16, and the air outlet is communicated with a common port B of a second reversing valve 18;
one end of the output gas path 5 is communicated with a common port B of the third reversing valve 19, the other end of the output gas path 5 is connected with a gas outlet of the electric ball valve 20, the output gas path 5 is provided with a first pressure gauge 21, a gas outlet of the output branch gas path 6 is provided with an output joint 22, and a gas inlet is connected to the output gas path 5;
an air suction port of the first vacuumizing air path 7 is connected to the output air path 5, the first vacuumizing air path 7 is provided with an electromagnetic valve 23, a vacuum pump 24 and a silencer 25, the air suction port of the vacuum pump is connected with an air outlet of the electromagnetic valve 23, and an outlet of the vacuum pump is communicated with the silencer;
the air inlets of the automatic pressure-dividing air distribution air path 8 are connected with ports A of the first reversing valve 17 and the second reversing valve 18, the automatic pressure-dividing air distribution air path is provided with a fourth reversing valve 26, an ITVH2020 high-voltage electric proportional valve 27 and an electric ball valve 20, the structure of the fourth reversing valve 26 is the same as that of the first reversing valve 17 and the second reversing valve 18, the port B of the fourth reversing valve 26 is that the air inlets of the automatic pressure-dividing air distribution air path are connected with the ports A of the first reversing valve 17 and the second reversing valve 18, the port C of the fourth reversing valve 26 is connected with the port A of the ITVH2020 high-voltage electric proportional valve 27, the port B of the ITVH2020 high-voltage electric proportional valve 27 is connected with the air inlet of the electric ball valve 20, the port C of the ITVH2020 high-voltage electric proportional valve 27 is connected with the first vacuum pumping air path 7 of the vacuum pump outlet through an overflow air path 28, and the port B;
one end of the second vacuumizing air passage 29 is communicated with the port a of the fourth reversing valve 26, and the other end is connected to the first vacuumizing air passage 7 of the air inlet of the vacuum pump 24.
The control lines of the first reversing valve 17, the second reversing valve 18, the fourth reversing valve 26, the electric ball valve 20, the electromagnetic valve 23 and the ITVH2020 high-voltage electric proportional valve 27 are respectively connected with an output port of the PLC, and the first pressure gauge 21 and the second pressure transmitter 30 are respectively connected with an input port of the PLC.
The vacuum pump 24 is a diaphragm vacuum pump.
Introduction of a working mode:
working mode 1: and manually controlling the pressure division and the air distribution.
Firstly, vacuumizing a pipeline.
The first direction changing valve 17 and the second direction changing valve 18 are not powered, and the internal b-c channels are communicated. The first manual pressure division air path 1 is vacuumized, the vacuum pump 24 and the electromagnetic valve 23 are opened, the b-c channels of the third reversing valve 19 are communicated, the first ball valve 11 and the first needle valve 12 are opened, the electric ball valve 20 is closed, and whether the vacuumizing is qualified or not is judged by reading the pressure value of the first pressure gauge 21. And similarly, vacuumizing the second manual pressure-dividing gas circuit 2, opening the vacuum pump 24, the electromagnetic valve 23 and the b-a channel of the third reversing valve 19, opening the second ball valve 13 and the second needle valve 14, closing the electric ball valve 20, and judging whether the vacuumizing is qualified or not by reading the pressure value of the first pressure gauge 21.
The second step is that: a manual air intake process.
And calculating the partial pressure of the first air inlet channel and the partial pressure of the second air inlet channel according to the inflation pressure and the concentration.
The first manual pressure-dividing air path 1 divides pressure and admits air; the first ball valve 11 is opened, the b-c communication of the third reversing valve 19 is opened, the electromagnetic valve 23 is closed, the electric ball valve 20 is closed, the air inflow is adjusted through the first needle valve 12, the adjustment is carried out according to the pressure value of the first pressure gauge 21, the standard gas communicated with the first air inlet channel 3 flows through the output air channel 5 and the output branch air channel 6, and the standard gas is filled into equipment to be inflated (such as a circuit breaker) from the output connector 22. When the partial pressure is reached, the valve shaft handle is rotated to enable the channel b-a of the third reversing valve 19 to be communicated, the air inlet of the first air inlet channel 3 is closed, and the air inlet of the second air inlet channel 4 is opened. And the air inlet partial pressure of the second manual partial pressure air channel 2 is completed in the same way.
The working mode 2 is as follows: and automatically controlling partial pressure and gas distribution.
Firstly, vacuumizing. The first reversing valve 17, the second reversing valve 18 and the fourth reversing valve 26 are electrified, the b-a channels in the first reversing valve 17, the second reversing valve 18 and the fourth reversing valve 26 are communicated, the electric ball valve 20 is closed, the third reversing valve 19 rotates to be closed, the electromagnetic valve 23 and the vacuum pump 24 are opened to vacuumize the pipeline, at the moment, the first vacuumizing air path 7 and the second vacuumizing air path simultaneously perform air suction, and whether the vacuumizing is qualified is judged according to the pressure value of the first pressure gauge 21.
The second step is that: and automatic pressure division and gas distribution. In the automatic pressure-dividing and air-distributing process, the ITVH2020 high-voltage electric proportional valve 27 can automatically calculate the partial pressure of the first air inlet channel 3 and the partial pressure of the second air inlet channel 4 according to given pressure and concentration.
The first air inlet channel 3 and the second air inlet channel 4 are respectively connected with different standard gases, such as prepared SF6/CF4Mixed gas, the first air inlet passage 3 and the second air inlet passage 4 are connected with SF6Standard gas and CF4A standard gas.
The first intake passage 3 takes in: the first reversing valve 17 is electrified, the channels B-a therein are communicated, the second reversing valve 18 and the fourth reversing valve 26 are not electrified, the channel B-a of the second reversing valve 18 is cut off, the channels B-c of the fourth reversing valve 26 are communicated, the electric ball valve 20 is electrified, the electromagnetic valve 23 is closed, the ITVH2020 high-voltage electric proportional valve 27 automatically controls the port B to output a gas to be inflated according to a calculated value until the gas distribution pressure is met, and redundant flow enters the vacuumizing pipeline 7 from the port c of the ITVH2020 high-voltage electric proportional valve 27 through the overflow pipeline 28 and is exhausted into the atmosphere.
And similarly, automatically controlling the air inlet partial pressure of the second air inlet channel 4: the second reversing valve 18 is electrified, the channels b-a therein are communicated, the first reversing valve 17 and the fourth reversing valve 26 are not electrified, the channel b-a of the first reversing valve is cut off, the channels b-c of the fourth reversing valve 26 are communicated, the electric ball valve 20 is electrified, the electromagnetic valve 23 is closed, the ITVH2020 high-voltage electric proportional valve 27 controls the second air inlet channel to output the gas to be inflated according to the calculated value until the distribution pressure is met, and the surplus flow enters the vacuumizing pipeline 7 from the port c of the ITVH2020 high-voltage electric proportional valve 27 through the overflow pipeline 28 and is exhausted into the atmosphere.
The utility model is simple in operation, through the carrier of difference, change the form, change the mounting means of each part, can realize the miniaturization and the portable carrying of product.
The present embodiment is not intended to limit the shape, material, structure, etc. of the present invention in any form, and all of the technical matters of the present invention belong to the protection scope of the present invention to any simple modification, equivalent change and modification made by the above embodiments.
Claims (2)
1. The utility model provides a gaseous mixture partial pressure gas distribution device which characterized in that: the automatic pressure-dividing gas distribution device comprises a first manual pressure-dividing gas path, a second manual pressure-dividing gas path, a first gas inlet channel, a second gas inlet channel, an output gas path, an output branch gas path, an electric ball valve, a first reversing valve, a second reversing valve, a third reversing valve, a first vacuumizing gas path, an automatic pressure-dividing gas distribution gas path, a fourth reversing valve, an ITVH2020 high-voltage electric proportional valve, an electric ball valve, an overflow gas path, a second pressure transmitter and a second vacuumizing gas path;
the first reversing valve and the second reversing valve are reversing valves with the same structure and are respectively provided with an interface A, an interface B and an interface C, wherein the common end is the interface B, when the first reversing valve and the second reversing valve are electrified, the internal B-C channels are communicated, and when the first reversing valve and the second reversing valve are electrified, the internal B-A channels are communicated;
the third reversing valve is provided with a port A, a port B and a port C, and the B-C channel or the B-A channel inside the third reversing valve can be communicated or both the two channels can be cut off by rotating the valve shaft;
the ITVH2020 high-voltage electric proportional valve is provided with a port A, a port B and a port C, wherein the port A is an input port, the port C is an air distribution output port, and the port B is a residual flow output port;
the first manual pressure-dividing gas path and the second manual pressure-dividing gas path are provided with a first ball valve and a first needle valve, the second pressure-dividing gas path is provided with a second ball valve and a second needle valve, the gas inlet of the first pressure-dividing gas path is communicated with the port C of the first reversing valve, the gas outlet of the first pressure-dividing gas path is communicated with the port C of the third reversing valve, the gas inlet of the second pressure-dividing gas path is communicated with the port C of the second reversing valve, the gas outlet of the second pressure-dividing gas path is communicated with the port A of the third reversing valve, and the first reversing valve is communicated with the port A of the second reversing valve;
a first air inlet joint is arranged at an air inlet of the first air inlet channel, an air outlet is communicated with a common port B of the first reversing valve, a second air inlet joint is arranged at an air inlet of the second air inlet channel, and an air outlet is communicated with the common port B of the second reversing valve;
one end of the output gas path is communicated with a common port B of the third reversing valve, the other end of the output gas path is connected with a gas outlet of the electric ball valve, a first pressure gauge is arranged on the output gas path, a gas outlet of the output branch gas path is provided with an output connector, and a gas inlet is connected to the output gas path;
an air suction port of the first vacuumizing air path is connected to an output air path, an electromagnetic valve, a vacuum pump and a silencer are arranged on the first vacuumizing air path, the air suction port of the vacuum pump is connected with an air outlet of the electromagnetic valve, and an outlet of the vacuum pump is communicated with the silencer;
the air inlets of the automatic pressure-dividing air distribution air path are connected with ports A of a first reversing valve and a second reversing valve, a fourth reversing valve, an ITVH2020 high-voltage electric proportional valve and an electric ball valve are arranged on the automatic pressure-dividing air distribution air path, the structure of the fourth reversing valve is the same as that of the first reversing valve and the second reversing valve, a port B of the fourth reversing valve is that the air inlets of the automatic pressure-dividing air distribution air path are connected with ports A of the first reversing valve and the second reversing valve, a port C of the fourth reversing valve is connected with a port A of the ITVH2020 high-voltage electric proportional valve, a port B of the ITVH2020 high-voltage electric proportional valve is connected with the air inlet of the electric ball valve, the port C of the ITVH2020 high-voltage electric proportional valve is connected with a first vacuum-pumping air path of a vacuum pump outlet through an overflow air path, and a;
one end of the second vacuumizing air path is communicated with a port A of the fourth reversing valve, and the other end of the second vacuumizing air path is connected to a first vacuumizing air path of an air inlet of the vacuum pump;
the control lines of the first reversing valve, the second reversing valve, the fourth reversing valve, the electric ball valve, the electromagnetic valve and the ITVH2020 high-voltage electric proportional valve are respectively connected with an output port of the PLC, and the first pressure gauge and the second pressure transmitter are respectively connected with an input port of the PLC.
2. A mixed gas partial pressure distribution apparatus according to claim 1, wherein: the vacuum pump is a diaphragm vacuum pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922125222.7U CN211936418U (en) | 2019-12-02 | 2019-12-02 | Mixed gas partial pressure distributing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922125222.7U CN211936418U (en) | 2019-12-02 | 2019-12-02 | Mixed gas partial pressure distributing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211936418U true CN211936418U (en) | 2020-11-17 |
Family
ID=73175329
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922125222.7U Active CN211936418U (en) | 2019-12-02 | 2019-12-02 | Mixed gas partial pressure distributing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211936418U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324745A (en) * | 2021-05-20 | 2021-08-31 | 上海悟道机电设备有限公司 | Device and method for testing comprehensive performance of commutator |
-
2019
- 2019-12-02 CN CN201922125222.7U patent/CN211936418U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113324745A (en) * | 2021-05-20 | 2021-08-31 | 上海悟道机电设备有限公司 | Device and method for testing comprehensive performance of commutator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN110345060B (en) | Lubricating oil pump set test system and test method | |
| CN107588322B (en) | Gas distribution and supplementing device for purifying and recycling sulfur hexafluoride mixed gas and operation method thereof | |
| CN108007651A (en) | A kind of air distributing method and device for the detection of spacecraft leak rate | |
| CN203269530U (en) | Integrated quantitative propellant filling and discharging device | |
| CN201757268U (en) | CNG station quick gas filling device | |
| CN211936418U (en) | Mixed gas partial pressure distributing device | |
| CN104147948A (en) | Anti-explosion multi-component dynamic air distribution device and method | |
| CN204099896U (en) | Mix insulation gas low temperature making-up air device | |
| CN207903897U (en) | A kind of portable level pressure inflation filling automatic control device | |
| CN201357057Y (en) | Preparing device for multicomponent mixed gas | |
| CN208688753U (en) | A kind of automatic helium leak check machine of power battery top cover | |
| CN108087719A (en) | The air charging system of small-sized sealing product and the inflation method of the device | |
| CN110302716B (en) | Constant-volume variable-pressure high-flow gas distribution system and gas distribution method thereof | |
| CN104108380A (en) | Multifunctional inflating device and control method thereof | |
| CN108488624A (en) | A kind of automatic evacuation filling machine for filling the leak detection of nitrogen hydrogen | |
| CN109899041A (en) | A kind of oil field ground gas injection system Energy Consumption Evaluation method | |
| CN109404728B (en) | Can retrieve gaseous aerating device | |
| CN108278487A (en) | A kind of switching device and air charging system for FREE-PISTON SHOCK TUNNEL compressed pipe | |
| CN208887869U (en) | A kind of automatic air tightness detecting system | |
| CN112985741B (en) | Piston type wind tunnel special gas inflation method utilizing compressed air power | |
| CN207012771U (en) | Sulfur hexafluoride and nitrogen mixed gas recovery separating-purifying device | |
| CN116592289A (en) | Sulfur hexafluoride and nitrogen mixed gas and separation circulation method | |
| CN208074586U (en) | A kind of calibrating gas supercharging device | |
| CN103011097A (en) | Nitrogen generating and filling device | |
| CN210613612U (en) | Constant volume variable pressure large flow distribution system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |