CN212748828U - One-control multi-inflow EPC module for gas chromatograph - Google Patents
One-control multi-inflow EPC module for gas chromatograph Download PDFInfo
- Publication number
- CN212748828U CN212748828U CN202021390350.0U CN202021390350U CN212748828U CN 212748828 U CN212748828 U CN 212748828U CN 202021390350 U CN202021390350 U CN 202021390350U CN 212748828 U CN212748828 U CN 212748828U
- Authority
- CN
- China
- Prior art keywords
- gas
- gas circuit
- input device
- air
- module
- 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
- Measuring Volume Flow (AREA)
Abstract
The utility model provides a accuse multithread income EPC module for gas chromatograph, including the module body and with the gaseous input device that the template body links to each other, this internal gas circuit that has of module, be equipped with the air lock in the gas circuit, gaseous input device intercommunication the gas circuit, its characterized in that: the gas circuit is total many, the air lock detachably arranges in the gas circuit, gas input device respectively with a plurality of the gas circuit links to each other. When the gas input device is used, gas is fed into the gas path by the gas input device, the gas is converted into gas flow with stable flow after passing through the gas resistor, and the gas flow regulation of multiple gas paths can be realized by replacing different gas resistors.
Description
Technical Field
The utility model relates to a gas chromatograph field especially relates to a accuse multithread income EPC module for gas chromatograph.
Background
The gas chromatograph technology is rapidly developed, the electronic pressure/flow control (EPC) technology is applied to gas circuit control of an instrument, the control is flexible and stable, and the EPC technology is popular with users, but as the key components for control, namely a proportional valve and a sensor, are high in equivalent ratio, the cost of an EPC module is high, and the integral price quoted of the instrument is high, so that the popularization and the use of the EPC technology are hindered.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that a accuse multithread income EPC module for gas chromatograph is provided, the gas flow of a plurality of gas circuits of simultaneous control, and then reduce cost.
The utility model discloses a this technical problem is solved to following mode:
the utility model provides a accuse multithread income EPC module for gas chromatograph, including the module body and with the gaseous input device that the template body links to each other, this internal gas circuit that has of module, be equipped with the air lock in the gas circuit, gaseous input device intercommunication the gas circuit, its characterized in that: the gas circuit is total many, the air lock detachably arranges in the gas circuit, gas input device respectively with a plurality of the gas circuit links to each other.
When the gas input device is used, gas is fed into the gas path by the gas input device, the gas is converted into gas flow with stable flow after passing through the gas resistor, and the gas flow regulation of multiple gas paths can be realized by replacing different gas resistors.
As the utility model discloses a preferred embodiment, the module body comprises gas circuit installation piece and the air resistance briquetting of concatenation together, be equipped with a plurality of intercommunications on the amalgamation face of gas circuit installation piece the first installation interface of gas circuit, a plurality of intercommunications have on the amalgamation face of air resistance briquetting the second installation interface of gas circuit when gas circuit installation piece and air resistance briquetting are adorned together, first installation interface and second installation interface amalgamation constitute a holding chamber, the air resistance is arranged in the holding intracavity. When the air-resistance pressure-relief valve is used, the air circuit installation block and the air resistance pressure block are disassembled, and then the air resistance in the air circuit installation block can be replaced.
As a preferred embodiment of the utility model, be equipped with gas feed, intercommunication on the gas circuit installation piece gas feed's egress opening and intercommunication the inflow entrance of first installation interface, be equipped with the intercommunication on the air-resistor briquetting the gas circuit delivery outlet of second installation interface, intercommunication the gas flow path of inflow entrance, first installation interface, second installation interface and gas circuit delivery outlet constitutes together gas circuit in the module body.
As a preferred embodiment of the present invention, the gas input device comprises a proportional magnetic valve having an inlet connected to the outflow port and an outlet connected to the inflow port. The proportional magnetic valve can change the caliber according to a program, adjust the pressure of gas introduced into the proportional magnetic valve, and introduce the gas with the adjusted pressure into the gas circuit installation block.
As a preferred embodiment of the present invention, the gas input device further includes a pressure sensor disposed on the gas circuit mounting block, and an inductive head of the pressure sensor extends into the gas flow passage section of the flow inlet leading to the first mounting interface. The pressure of the gas before the gas is introduced into the first mounting interface can be measured.
This a accuse multithread goes into EPC module for gas chromatograph can use the gas flow of four gas circuits of proportion solenoid valve and pressure sensor simultaneous control of one way, obtains the output of 4 ways of stable flow. The flow meter has the advantages of convenience in use, stable flow, compact module and cost saving.
Drawings
The invention will be further described with reference to the accompanying drawings:
fig. 1 is a perspective view of the present invention;
fig. 2 is an exploded view of the present invention;
fig. 3 is a block diagram of the original components of the present invention;
wherein: 100-module body, 110-gas path installation block, 111-gas inlet, 112-inflow port, 113-outflow port, 114-first installation interface, 115-socket, 120-air resistance pressing block, 121-second installation interface, 122-gas path output port, 200-proportion magnetic valve, 300-pressure sensor and 400-air resistance.
Detailed Description
The invention is further illustrated below by means of specific examples:
as shown in fig. 1 and 2, a one-control multiple-inflow EPC module for a gas chromatograph includes a module body 100, proportional magnetic valves 200, a pressure sensor 300, and a gas block 400.
The module body 100 is composed of two parts, namely an air path installation block 110 and an air resistance pressing block 120.
The gas circuit mounting block 110 is rectangular, and has a gas inlet 111 on the upper surface, an inflow port 112 and an outflow port 113 on the side surface, four first mounting ports 114 on the front surface, and a socket 115 on the bottom surface. The gas inlet 111 communicates with the gas outlet 113, and the gas inlet 112 communicates with the first mounting port 114. The socket 115 communicates the inlet 112 to the gas flow path segment of the first mounting interface 114.
A proportional magnetic valve 200 is installed at a side surface of the air path installation block 110 and includes an inlet connected to the outflow port 113 and an outlet connected to the inflow port 112. The proportional magnetic valve 200 can change the caliber according to a program, adjust the pressure of the gas introduced therein, and introduce the pressure-adjusted gas into the gas path installation block 110.
The pressure sensor 300 is inserted into a socket on the bottom surface of the air passage mounting block 110, and its sensor head extends into a gas flow passage section with an inflow port leading to the first mounting interface 114. The pressure of the gas before it passes into the first mounting port 114 can be measured.
The gas block 120 is also rectangular and is mounted on the front surface of the gas circuit mounting block 110. Four sets of second mounting interfaces matched with the four sets of first mounting interfaces 114 positioned on the front surface of the air path mounting block 110 are arranged on the rear surface of the air resistance pressing block 120, and four sets of air path output ports 122 respectively communicated with the second mounting interfaces 121 are arranged on the upper surface of the air resistance pressing block 120.
The first mounting interface 114 is a circular concave cavity arranged on the front surface of the air path mounting block 110, the second mounting interface 121 is a circular concave cavity arranged on the rear surface of the air resistance pressing block 120, when the air path mounting block 110 and the air resistance pressing block 120 are matched and fixed, the first mounting interface 114 and the second mounting interface 121 can be matched to form a circular tube-shaped accommodating cavity, and an air path communicating the inflow port 112, the first mounting interface 114, the second mounting interface 121 and the air path output port 122 forms an air path in the module body 100 together.
The air resistor 400 is tubular and is respectively disposed in the accommodating cavity formed by the four sets of the first mounting ports 114 and the second mounting ports 121, and the inlet end of the air resistor is close to the first mounting ports 114, and the outlet end of the air resistor is close to the second mounting ports 121. When gas under pressure is input to the inlet end of the air resistor, the outlet end of the air resistor 400 can output a gas flow with a stable flow rate. In the present invention, the working pressure ranges of the four air resistors 400 should be kept consistent.
Above is the utility model discloses an overall structure, combine fig. 2 and fig. 3, its operational mode as follows: the gas is introduced from the gas inlet 111 of the gas circuit installation block 110, the gas enters the proportional magnetic valve 200 through the outlet 113, the proportional magnetic valve 200 adjusts the pressure of the gas introduced therein, and the gas with the adjusted pressure enters the gas circuit installation block 110 through the inlet.
The pressure sensor 300 detects the gas pressure input to the gas circuit installation block by the proportional magnetic valve 200, and controls the proportional magnetic valve 200 to finely adjust the gas pressure according to the measured pressure so that the gas pressure reaches a target value and is maintained in a stable state.
After the pressure is stabilized, the gas flows into the inlet of the air resistor 400 through the first mounting interface 114, and flows out of the outlet of the air resistor 400 at a stable flow rate, which flows out of the gas path output port 122 through the second mounting interface 121.
When the flow of each air path needs to be adjusted, the air path installation block 110 and the air resistance pressing block 120 are disassembled, and the air resistance 400 with different flow-pressure function relations is replaced, so that the flow can be controlled, and four groups of air paths with different flows are obtained.
In summary, the one-control multi-inflow EPC module for a gas chromatograph can simultaneously control the gas flow rates of four gas paths by using one path of proportional magnetic valve and a pressure sensor, and obtain 4 paths of output with stable flow rates. The flow meter has the advantages of convenience in use, stable flow, compact module and cost saving.
However, those skilled in the art should realize that the above embodiments are only for illustrative purposes and are not to be used as limitations of the present invention, and that changes and modifications to the above embodiments are intended to fall within the scope of the appended claims, as long as they fall within the true spirit of the present invention.
Claims (5)
1. The utility model provides a accuse multithread flows into EPC module for gas chromatograph, includes module body (100) and with the gaseous input device that module body (100) link to each other, have the gas circuit in module body (100), be equipped with air lock (400) in the gas circuit, gaseous input device intercommunication the gas circuit, its characterized in that: the gas circuit is total many, air-resistor (400) detachably arranges in the gas circuit, gas input device respectively with many the gas circuit links to each other.
2. A controlled multiple flow-in EPC module of a gas chromatograph according to claim 1, wherein: the module body (100) comprises an air path mounting block (110) and an air resistance pressing block (120) which are spliced together, a plurality of first mounting interfaces (114) which are respectively communicated with the air path are arranged on the splicing surface of the air path mounting block (110), a plurality of second mounting interfaces (121) which are respectively communicated with the air path are arranged on the splicing surface of the air resistance pressing block (120), when the air path mounting block (110) and the air resistance pressing block (120) are assembled together, the first mounting interfaces (114) and the second mounting interfaces (121) are spliced to form a containing cavity, and the air resistance (400) is arranged in the containing cavity.
3. A controlled multiple flow-in EPC module of a gas chromatograph according to claim 2, wherein: be equipped with gas feed (111), intercommunication on gas circuit installation piece (110) egress opening (113) and the intercommunication of gas feed (111) inflow port (112) of first installation interface (114), be equipped with the intercommunication on air lock briquetting (120) gas circuit delivery outlet (122) of second installation interface (121), the gas circuit in module body (100) is the intercommunication the gas flow channel of inflow port (112), first installation interface (114), second installation interface (121) and gas circuit delivery outlet (122).
4. A controlled multiple flow-in EPC module of a gas chromatograph according to claim 3, wherein: the gas input device is a proportional magnetic valve (200), and the proportional magnetic valve (200) is provided with an inlet connected with the outflow port (113) and an outlet connected with the inflow port (112).
5. A controlled multiple flow-in EPC module of a gas chromatograph according to claim 4, wherein: the gas input device further comprises a pressure sensor (300) arranged on the gas circuit mounting block (110), and an induction head of the pressure sensor (300) extends into a gas flow passage section of the inflow port (112) leading to the first mounting interface (114).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021390350.0U CN212748828U (en) | 2020-07-15 | 2020-07-15 | One-control multi-inflow EPC module for gas chromatograph |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021390350.0U CN212748828U (en) | 2020-07-15 | 2020-07-15 | One-control multi-inflow EPC module for gas chromatograph |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212748828U true CN212748828U (en) | 2021-03-19 |
Family
ID=75036385
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021390350.0U Active CN212748828U (en) | 2020-07-15 | 2020-07-15 | One-control multi-inflow EPC module for gas chromatograph |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212748828U (en) |
-
2020
- 2020-07-15 CN CN202021390350.0U patent/CN212748828U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU2005279293B2 (en) | Gas flow control in a ventilator | |
| CN102645249B (en) | There is the flow sensor assembly of integrated bypass passage | |
| CN100535609C (en) | Thermal flow detecting apparatus and method for detecting flow using the same | |
| JPH02118205A (en) | Flow stabilizer for fluid, mass flowmeter and mass flow rate controller | |
| US4535678A (en) | Hydraulic control apparatus for a servo-motor, particularly for vehicle steering | |
| CN212748828U (en) | One-control multi-inflow EPC module for gas chromatograph | |
| US5614655A (en) | Gas mixing device | |
| CN102639843B (en) | Variable performance valve | |
| US20180348030A1 (en) | Sensor with a gas flow sensing chip for measurement of flow rate of a gas flowing through a gas conduit | |
| US8202733B1 (en) | System and method for obtaining a differential flow rate | |
| US20090101213A1 (en) | Apparatus for controlling and metering fluid flow | |
| CA2396429A1 (en) | Pressure regulating valve | |
| JPH04157325A (en) | Thermal air flowmeter | |
| JP4364334B2 (en) | Mass flow meter flow rate detection mechanism | |
| CN216136512U (en) | Oxygen concentration adjusting device and breathing machine | |
| CN219796240U (en) | Novel air-fuel ratio valve and combustion pipeline | |
| US4651730A (en) | Gas metering device for medical apparatus | |
| CN211039806U (en) | Gas flow control device | |
| CN202561224U (en) | Flow linear control pilot valve | |
| CN220046738U (en) | Micro-airflow flushing module, pressure monitoring module and breathing machine | |
| CN207750550U (en) | A kind of high-precision two-way gas complementation Voltage stabilizing module | |
| CN211779173U (en) | Multi-path pressure automatic control integrated valve manifold | |
| CN216878804U (en) | Mixer adopting Venturi structure | |
| GB2128675A (en) | Apparatus for supplying fuel to an internal combustion engine | |
| CN219307647U (en) | Gas circuit module and medical equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |