CN203363652U - Quantitative gas supply system - Google Patents
Quantitative gas supply system Download PDFInfo
- Publication number
- CN203363652U CN203363652U CN 201320266380 CN201320266380U CN203363652U CN 203363652 U CN203363652 U CN 203363652U CN 201320266380 CN201320266380 CN 201320266380 CN 201320266380 U CN201320266380 U CN 201320266380U CN 203363652 U CN203363652 U CN 203363652U
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- valve
- gas
- supply system
- quantitative
- transmission pipeline
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Abstract
The utility model discloses a quantitative gas supply system which comprises a gas storage tank and a gas delivery pipeline. The quantitative gas supply system is characterized in that one end of the gas delivery pipeline is connected with a gas outlet connector of the gas storage tank, and a quick-connection joint is arranged at the other end of the gas delivery pipeline; a pressure reducing valve is arranged on the gas outlet connector of the gas storage tank; a buffer tank, an electromagnetic switch valve, a needle valve and a stop valve are sequentially mounted on the gas delivery pipeline from the gas inlet end to the gas outlet end; and the gas delivery pipeline has even thickness, the pressure reducing valve is a high-precision pressure reducing valve, the electromagnetic switch valve is controlled by electromagnetic force, the needle valve is an adjustable needle valve which has a fine adjustment effect and is capable of indicating strokes, and the stop valve is a vacuum stop valve. The quantitative air supply system is reasonable in structural design, solves the problem that high-precision and quantitative air supply cannot be effectively controlled under the complex electromagnetic environment in the prior art, and is convenient to mount, stable and reliable in operation and suitable for quantitative supply occasions of various gases.
Description
Technical field
The utility model relates to gas supply field, especially a kind of gas supply system that has stronger anti-electromagnetic interference capability, can realize high-precision quantitative confession airway dysfunction.
Background technique
The rationing of gas is to realize chemical reaction, nuclear reaction and the key factor that pure working environment is provided, and is widely used in the fields such as industrial production, experiment, medical treatment, especially the stricter occasion to the demand of gas.Consider that gas density is lower, and affected by the factors such as temperature, pressure, when supply gas, can cause larger error.At present, the high-precision quantitative method of supplying of gas is mainly that source of the gas is connected to on the gas system by reduction valve and mass flow controller (MFC), realizes the weight feed of gas by MFC.Because the MFC anti-electromagnetic interference capability is poor, time-response is bad, under strong electromagnetic interference environment, reliability is poor, is not suitable for using under strong electromagnetic interference environment.
The model utility content
The purpose of this utility model is in order to make up the deficiency of prior art, provide highi degree of accuracy a kind of quantitative air supply system, improved the reliability and stability of air feed under the complex electromagnetic environment, to solve the problem that can not effectively be controlled at the quantitative air feed under complex electromagnetic environment in prior art.
The utility model is achieved through the following technical solutions:
A kind of quantitative air supply system, include gas holder and gas transmission pipeline, it is characterized in that: an end of described gas transmission pipeline is connected with the interface of giving vent to anger of gas holder, the other end is provided with quick union, the interface of giving vent to anger of described gas holder is provided with reduction valve, knock out drum is installed successively from inlet end to outlet side on described gas transmission pipeline, electromagnetic switch valve, needle-valve, stop valve, described gas transmission pipeline even thickness, described decompression valve position high limit relay, described electromagnetic switch valve is the switch valve that electromagnetic force is controlled, described needle-valve is for having the denotable adjustable needle valve of fine setting effect stroke, described stop valve is vaccum stop valve.
Described quick union is the quick change flanged fitting.
Be provided with knock out drum in gas transmission pipeline between described electromagnetic switch valve and fast stop valve.
Its principle is: utilize reduction valve to make the gas holder pressurized gas become the constant low pressure gas of pressure stability; The constant low pressure gas storage in knock out drum to maintain the stable of supply gas pressure; Utilize the needle-valve of having demarcated in advance in the unit time of different opening and pressure difference air demand, coordinate electromagnetic switch valve, realize the high-precision quantitative air feed under complex electromagnetic environment; Utilize quick union can conveniently be connected to various gas equipments.
The pipeline that described connecting tube is even thickness, its even thickness, not yielding, guarantee that the conductance of pipeline is constant, the air-flow passed through can not change in pipe interior generation fluidised form (depending on the pressure size, can be divided into turbulent flow, viscous flow and Molecular flow).Described connecting tube good seal, can not leak while guaranteeing gas communication or outside air is infiltrated.Described connecting tube not with supply gas generation chemical reaction, the gas of guaranteeing supply can not produce impurity in described connecting tube or affect described connecting tube sealability or pipe interior cause block up the impact described connecting tube conductance.Described reduction valve is high limit relay, it can be for different types of gas supply, the needed reduction valve of different gas is incomplete same, and therefore described reduction valve will be selected according to supplied gaseous species, the person and device security while guaranteeing to use.Described electromagnetic switch valve is the switch valve that electromagnetic force is controlled, so that remote-controlled gas is supplied with.Described needle-valve is for having the denotable needle-valve of fine setting effect stroke, and the needle-valve minimum scale is less, and the aperture of metering pin valve, to guarantee to pass through to change the conductance of described air supply system, obtain needed unit time air demand accurately.Described stop valve is vaccum stop valve commonly used, and the closure of control valve and unlatching according to the actual requirements, conveniently isolate source of the gas and use the gas system, and sealability is better.When described knock out drum can guarantee that gas is supplied with pressure stability, described pipe coupling is quick union, can connect eaily gas equipment, guarantee use gas system as long as a quick union matched is installed, can realize quick connection, and easy accessibility, favorable sealing property, can reuse.
The utility model has the advantages that:
The utility model reasonable in design, solved and can not effectively be controlled at the high-precision quantitative air feed problem under complex electromagnetic environment in the prior art, and easy for installation, working stability is reliable, is applicable to the rationing occasion of various gases.
The accompanying drawing explanation
Fig. 1 is the utility model structural representation.
Embodiment
Referring to accompanying drawing, a kind of quantitative air supply system, include gas holder 1 and gas transmission pipeline 2, one end of gas transmission pipeline 2 is connected with the interface 3 of giving vent to anger of gas holder 1, the other end is provided with quick union 8, the interface 3 of giving vent to anger of gas holder 1 is provided with reduction valve 4, knock out drum 9 is installed successively from inlet end to outlet side on gas transmission pipeline 2, electromagnetic switch valve 5, needle-valve 6, stop valve 7, described gas transmission pipeline 2 even thickness, 4 high limit relaies of described reduction valve, the switch valve that described electromagnetic switch valve 5 is controlled for electromagnetic force, described needle-valve 6 is for having the denotable adjustable needle valve of fine setting effect stroke, described stop valve 7 is vaccum stop valve.Described quick union 8 is the quick change flanged fitting.
Claims (3)
1. a quantitative air supply system, include gas holder and gas transmission pipeline, it is characterized in that: an end of described gas transmission pipeline is connected with the interface of giving vent to anger of gas holder, the other end is provided with quick union, the interface of giving vent to anger of described gas holder is provided with reduction valve, prop up outlet side from inlet end on described gas transmission pipeline electromagnetic switch valve is installed successively, needle-valve, stop valve, described gas transmission pipeline even thickness, described reduction valve is high limit relay, described electromagnetic switch valve is the switch valve that electromagnetic force is controlled, described needle-valve is for having the denotable adjustable needle valve of fine setting effect stroke, described stop valve is vaccum stop valve.
2. quantitative air supply system according to claim 1 is characterized in that: described quick union is quick change flanged fitting or VCO, VCR formula joint.
3. quantitative air supply system according to claim 1, is characterized in that: in the gas transmission pipeline between described reduction valve and electromagnetic switch valve, be provided with knock out drum.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320266380 CN203363652U (en) | 2013-05-15 | 2013-05-15 | Quantitative gas supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320266380 CN203363652U (en) | 2013-05-15 | 2013-05-15 | Quantitative gas supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203363652U true CN203363652U (en) | 2013-12-25 |
Family
ID=49811411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320266380 Expired - Lifetime CN203363652U (en) | 2013-05-15 | 2013-05-15 | Quantitative gas supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203363652U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697961A (en) * | 2013-12-26 | 2014-04-02 | 武汉理工大学 | Gas fuel nozzle flow measurement pressurizer |
| CN104819467A (en) * | 2015-04-29 | 2015-08-05 | 哈尔滨飞机工业集团有限责任公司 | Aircraft fire protection testing burner air supply system |
| CN107355681A (en) * | 2017-08-23 | 2017-11-17 | 兰州空间技术物理研究所 | A kind of feeder and air supply method for the calibration of multiple working medium gas micro |
| CN109764242A (en) * | 2018-12-14 | 2019-05-17 | 兰州空间技术物理研究所 | A kind of gas flow control device |
-
2013
- 2013-05-15 CN CN 201320266380 patent/CN203363652U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103697961A (en) * | 2013-12-26 | 2014-04-02 | 武汉理工大学 | Gas fuel nozzle flow measurement pressurizer |
| CN103697961B (en) * | 2013-12-26 | 2017-01-11 | 武汉理工大学 | Gas fuel nozzle flow measurement pressurizer |
| CN104819467A (en) * | 2015-04-29 | 2015-08-05 | 哈尔滨飞机工业集团有限责任公司 | Aircraft fire protection testing burner air supply system |
| CN107355681A (en) * | 2017-08-23 | 2017-11-17 | 兰州空间技术物理研究所 | A kind of feeder and air supply method for the calibration of multiple working medium gas micro |
| CN107355681B (en) * | 2017-08-23 | 2019-09-10 | 兰州空间技术物理研究所 | A kind of feeder and air supply method for the calibration of multiple working medium gas micro |
| CN109764242A (en) * | 2018-12-14 | 2019-05-17 | 兰州空间技术物理研究所 | A kind of gas flow control device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |