CN203148880U - Gas test device with solenoid valve - Google Patents
Gas test device with solenoid valve Download PDFInfo
- Publication number
- CN203148880U CN203148880U CN 201220707025 CN201220707025U CN203148880U CN 203148880 U CN203148880 U CN 203148880U CN 201220707025 CN201220707025 CN 201220707025 CN 201220707025 U CN201220707025 U CN 201220707025U CN 203148880 U CN203148880 U CN 203148880U
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- solenoid valve
- gas outlet
- test chamber
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Abstract
The utility model discloses a gas test device with a solenoid valve, and belongs to a gas analyzer field. The gas test device comprises a gas inlet, a gas outlet, a sensor test chamber connected between the gas inlet and the gas outlet, a three-pore solenoid valve disposed on the gas inlet, and a stop valve disposed between the gas outlet and the sensor test chamber; a normally open pore on the three-pore solenoid valve is connected with the gas inlet; a normally close pore on the three-pore solenoid valve is connected between the gas outlet and the stop valve; a control pore on the three-pore solenoid valve is connected with the sensor test chamber. The utility model has the advantages of increased analyzer integral response time, and effective prevention of sensor from being poisoned.
Description
Technical field
The utility model discloses a kind of gas test device of charged magnet valve, belong at the gas analyzer field.
Background technology
At present every in the world is the analytical instrument of core with the electrochemical sensor, and its sensor poisoning in various degree all can occur and shorten the life-span phenomenon when exceeding measurement range.
The principle of well-known electrochemical sensor: be by the special material embedding with corresponding chemical liquid, and sensitive surface is a kind of special filtering membrane, have only gas molecule to infiltrate, fluid molecule can't pass through, when tested gas passes through sensor, specific composition generation chemical reaction in inner chemical liquid meeting and the tested gas, and export corresponding electric current or voltage signal, so electrochemical sensor has some fatal shortcomings, when running into tested gas, all can react with it, when the tested gas concentration value of environment of living in is within the sensor measurement scope, can guarantee the Design of Sensor life-span, after tested gas concentration value no to scale scope, poisoning and shortening the life-span phenomenon will appear in sensor, because sensor internal is chemical liquid, so sensor requires also than higher environment for use pressure, if exceeding scope of design, pressure will thoroughly damage sensor.
The technical scheme of prior art
Be the analyser of measurement core with the electrochemical sensor at present, in order to overcome the weakness of electrochemical sensor, its basic solution has following two kinds:
1, adds a plane four-way valve at the two ends of sensor, when tested gas concentration value exceeds the Design of Sensor range ability, artificial closes the plane four-way valve, sensor is sealed with tested gas keep apart fully, needs the artificial plane four-way valve is opened when measuring.Because the plane four-way valve can be opened the air inlet/outlet on the sensor cavity when opening simultaneously, so the phenomenon that pressure is piled up can not occur.
2, add solenoid valve at the two ends in sensor test chamber, two closed electromagnetic valves were kept apart sensor fully with tested gas when tested gas concentration value exceeded the sensor design range.
More than two kinds of solutions all have weak point, first kind of needs are artificial removes the operation planar four-way valve, use more loaded down with trivial details, maloperation appears in operator easily, plane four-way valve one total 3-4 air-path interface, gas circuit connects more complicated like this, and leak source often appears in node easily, but also has increased cost.Though second kind of maloperation possibility with the people got rid of, connecting also around the gas circuit of sensor can more complicated, the phenomenon that so just leaks air easily, and structural member increases makes the increase of analyser cost.The well-known bad meeting of impermeability causes great influence to the measuring accuracy to analyser, and the more many more easy phenomenons that leak air of gas circuit node.Secondly, choosing is general solenoid valve in second kind, only opens and close two actions, when solenoid valve is all opened, gas also has a big chunk directly to flow away from bypass without the sensor test chamber, and regularly the sensor response time must slow down when tested gas flow one.
Summary of the invention
For overcoming above-mentioned technical matters, the utility model provides a kind of analyser Whole Response time quick, and can effectively prevent the gas test device that sensor is poisoned.
For realizing above-mentioned technical purpose, the technical solution of the utility model is as follows:
A kind of gas test device of charged magnet valve, comprise air intake opening and gas outlet, and be connected sensor test chamber between air intake opening and the gas outlet, it is characterized in that: also comprise be arranged on three hole solenoid valves on the air intake opening and be arranged on the gas outlet and the sensor test chamber between stop valve, Chang Kaikong on the described three hole solenoid valves is connected with air intake opening, normally closed hole on the described three hole solenoid valves is connected between gas outlet and the stop valve, and the control mouth on the described three hole solenoid valves is connected with the sensor test chamber.
Stop valve described in the utility model is the diplopore solenoid valve, and the normal opening on the described diplopore solenoid valve is connected with the sensor test chamber, and the normally closed port on the described diplopore solenoid valve is connected with the gas outlet.
Workflow of the present utility model is as follows:
First kind of situation, conventional concentration gases, tested gas is after air intake opening enters, arrive the normal opening of three hole solenoid valves, open the control mouth, tested gas enters the sensor test chamber, tested gas is discharged through the stop valve that is connected between gas outlet and the sensor test chamber after the chamber internal reaction finishes;
Second kind of situation, high concentration gas, tested gas arrive the normal opening of three hole solenoid valves after air intake opening enters, the closing control mouth is opened normally closed port, and at this moment, tested gas will directly be discharged without the sensor test chamber, and this situation stop valve is in closed condition;
The third situation can say that stop valve is replaced by the diplopore solenoid valve, has adapted to the variation of above-mentioned two kinds of situations, and during the analytic routines concentration gases, normal opening and the normally closed port of diplopore solenoid valve are all opened, and equipment normally moves.When analyzing high concentration gas, close the normally closed port of diplopore solenoid valve, prevent from that tested gas from pouring in down a chimney to enter the sensor test chamber.
Because the utility model adopts technique scheme and workflow, therefore, has following advantage:
At first, the utility model has been chosen three hole solenoid valves in induction part, and when solenoid valve was opened, the tested gas sensor test chamber of will all flowing through had increased the contact of sensor with tested gas, thereby improved the analyser Whole Response time.When closed electromagnetic valve, tested gas is kept apart with sensor fully, helps to protect sensor to prevent its poisoning.
Secondly, also adopt the diplopore solenoid valve in the gas outlet, stoped high concentration gas to pour in down a chimney effectively and entered the sensor test chamber, effectively prevented the sensor secondary poisoning;
The 3rd and since solenoid valve can with automatically controlled part communication, for analyser reaches intelligent, provide the foundation.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Among the figure: 1, air intake opening 2, gas outlet 3, sensor test chamber 4, three hole solenoid valves
5, stop valve
Normally closed hole on 4-1, the three hole solenoid valves
Control mouth on 4-2, the three hole solenoid valves
Chang Kaikong on 4-3, the three hole solenoid valves
Normal opening on 5-1, the diplopore solenoid valve
Normally closed port on 5-2, the diplopore solenoid valve
Embodiment
A kind of gas test device of charged magnet valve, comprise air intake opening and gas outlet, and be connected sensor test chamber between air intake opening and the gas outlet, it is characterized in that: also comprise be arranged on three hole solenoid valves on the air intake opening and be arranged on the gas outlet and the sensor test chamber between stop valve, Chang Kaikong on the described three hole solenoid valves is connected with air intake opening, normally closed hole on the described three hole solenoid valves is connected between gas outlet and the stop valve, and the control mouth on the described three hole solenoid valves is connected with the sensor test chamber.
A kind of gas test device of charged magnet valve, comprise air intake opening and gas outlet, and be connected sensor test chamber between air intake opening and the gas outlet, it is characterized in that: also comprise be arranged on three hole solenoid valves on the air intake opening and be arranged on the gas outlet and the sensor test chamber between stop valve, Chang Kaikong on the described three hole solenoid valves is connected with air intake opening, normally closed hole on the described three hole solenoid valves is connected between gas outlet and the stop valve, and the control mouth on the described three hole solenoid valves is connected with the sensor test chamber.
Stop valve described in the utility model is the diplopore solenoid valve, and the normal opening on the described diplopore solenoid valve is connected with the sensor test chamber, and the normally closed port on the described diplopore solenoid valve is connected with the gas outlet.
Claims (2)
1. the gas test device of a charged magnet valve, comprise air intake opening (1) and gas outlet (2), and be connected sensor test chamber (3) between air intake opening (1) and gas outlet (2), it is characterized in that: also comprise be arranged on three hole solenoid valves (4) on the air intake opening (1) and be arranged on gas outlet (2) and sensor test chamber (3) between stop valve (5), Chang Kaikong (4-3) on the described three hole solenoid valves (4) is connected with air intake opening (1), normally closed hole (4-1) on the described three hole solenoid valves (4) is connected between gas outlet (2) and the stop valve (3), and the control mouth (4-2) on the described three hole solenoid valves (4) is connected with sensor test chamber (3).
2. the gas test device of a kind of charged magnet valve according to claim 1, it is characterized in that: described stop valve (5) is the diplopore solenoid valve, normal opening (5-1) on the described diplopore solenoid valve is connected with sensor test chamber (3), and the normally closed port (5-2) on the described diplopore solenoid valve is connected with gas outlet (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220707025 CN203148880U (en) | 2012-12-19 | 2012-12-19 | Gas test device with solenoid valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220707025 CN203148880U (en) | 2012-12-19 | 2012-12-19 | Gas test device with solenoid valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203148880U true CN203148880U (en) | 2013-08-21 |
Family
ID=48976396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220707025 Expired - Lifetime CN203148880U (en) | 2012-12-19 | 2012-12-19 | Gas test device with solenoid valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203148880U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720964A (en) * | 2020-05-26 | 2021-11-30 | 宁波方太厨具有限公司 | Formaldehyde detection system and air purification device applying same |
-
2012
- 2012-12-19 CN CN 201220707025 patent/CN203148880U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113720964A (en) * | 2020-05-26 | 2021-11-30 | 宁波方太厨具有限公司 | Formaldehyde detection system and air purification device applying same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170106 Address after: 610000 Sichuan city of Chengdu province Wuhou District Wuhou park zone three road Vuko East No. 9 Patentee after: JIUYIN TECHNOLOGY CHENGDU CO.,LTD. Address before: 610041 Sichuan city of Chengdu province Wuhou District Shaoling Street No. 1 Golden Garden 9 Building 5 floor No. 3 Patentee before: CHENGDU XUXIANG TECHNOLOGY Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130821 |