CN202360852U - High-temperature fluid detection system - Google Patents
High-temperature fluid detection system Download PDFInfo
- Publication number
- CN202360852U CN202360852U CN 201120506390 CN201120506390U CN202360852U CN 202360852 U CN202360852 U CN 202360852U CN 201120506390 CN201120506390 CN 201120506390 CN 201120506390 U CN201120506390 U CN 201120506390U CN 202360852 U CN202360852 U CN 202360852U
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- temperature
- mass flow
- control
- gas mass
- signal processing
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Abstract
The utility model discloses a high-temperature fluid detection system, comprising a high-temperature gas mass flow measurement and control executing part, a high-temperature connection cable and a signal processing and controlling part, wherein the high-temperature gas mass flow measurement and control executing part and the signal processing and controlling part are separately arranged and are connected through a high-temperature connection cable. The signal processing and controlling part is arranged under a normal-temperature environment, thus the high-temperature fluid detection system disclosed by the utility model has the advantages of avoiding a high-temperature environment, reducing requirements on a circuit component, improving the reliability of the system and being capable of precisely controlling the high-temperature gas mass flow under the high-temperature environment.
Description
Technical field
The utility model relates to a kind of gas mass flow measuring and controlling, relates in particular to a kind of high temperature fluid and detects control system.
Background technique
(Mass Flow Controller MFC) is used for gas mass flow is carried out precision measuremnt and control the gas mass flow amount controller.
As shown in Figure 1, gas mass flow amount controller of the prior art comprises shunt, sensor, solenoid valve and CPU, driving, control circuit board etc.Shunt, sensor etc. are formed the flow measurement module; Flow analog signals is amplified conditioning, A/D conversion etc. through signal on the circuit board and is become the acceptable digital quantity of CPU; The flow value that CPU sets according to the user; Adopt pid control algorithm, control the aperture of solenoid valve, reach the purpose of accurate control gaseous flow.
Gas mass flow amount controller of the prior art is in order to reduce volume, to be convenient to install, and each element all concentrates in together.At normal temperatures, this gas mass flow controller technology comparative maturity, but in some special occasions, for example need under the environment of high temperature, control accurately high-temperature gas, in this case, conventional gas flow controller is no longer suitable.Each control electronic parts and components on the circuit board are under hot environment, and the electrical characteristic parameter can great changes have taken place, have in addition can lose efficacy, thereby cause the flow dontroller can't proper functioning under hot environment.
The model utility content
The purpose of the utility model provides a kind of high temperature fluid detection system that can under hot environment, accurately control the high-temperature gas mass flow rate.
The purpose of the utility model realizes through following technological scheme:
The high temperature fluid detection system of the utility model; Comprise high-temperature gas mass flow measurement and control do-part, high temperature conjunction cable, signal processing and control section; Said high-temperature gas mass flow measurement control do-part and said signal processing and control section split are provided with, and connect through said high temperature conjunction cable between the two.
Technological scheme by above-mentioned the utility model provides can be found out; The high temperature fluid detection system that the utility model provides; Because high-temperature gas mass flow measurement and control do-part and said signal processing and control section split setting connect through said high temperature conjunction cable between the two.Signal processing and control section are positioned in the normal temperature environment, have avoided hot environment, have reduced the requirement of circuit elements device, have improved the reliability of system, can under hot environment, accurately control the high-temperature gas mass flow rate.
Description of drawings
Fig. 1 is the schematic representation of gas mass flow amount controller of the prior art;
The schematic representation of the high temperature fluid detection system that Fig. 2 provides for the utility model embodiment.
Embodiment
To combine accompanying drawing that the utility model embodiment is done to describe in detail further below.
The high temperature fluid detection system of the utility model, its preferable embodiment is as shown in Figure 2:
Comprise high-temperature gas mass flow measurement and control do-part, high temperature conjunction cable, signal processing and control section; Said high-temperature gas mass flow measurement and control do-part and said signal processing and control section split setting connect through said high temperature conjunction cable between the two.
Said high-temperature gas mass flow measurement comprises sensor, shunt, flow control valve with the control do-part, and said signal processing and control section comprise control circuit board.
Sealing position between said high-temperature gas mass flow measurement and each element of control do-part is provided with metal packing washer.
The high temperature fluid detection system of the utility model; The high temperature conjunction cable is used for the information interaction between high-temperature gas mass flow measurement control do-part and said signal processing and the control section; Signal processing and control section are positioned in the normal temperature environment; Avoid hot environment, reduced the requirement of circuit elements device, improved the reliability of system.Can under hot environment, accurately control the high-temperature gas mass flow rate; This system can be implemented under 60～120 ℃ of ambient temperatures 60～120 ℃ of high-temperature gas mass flow rates are controlled; Can overcome the deficiency of existing technology, fill up the blank of high-temperature gas flow control system.
Specific embodiment:
As shown in Figure 2, system comprises three parts: high-temperature gas mass flow measurement and control do-part, high temperature conjunction cable, signal processing and control section.The high-temperature gas mass flow measurement is operated in hot environment with the control do-part, and signal processing and control section are operated in normal temperature environment, and high-temperature cable is as the bridge that connects high-temperature part and low temperature partial information.
High-temperature gas mass flow measurement and the main body of control do-part as the gas mass flow amount controller are operated under the hot environment, and it is to being sealed with special requirement; Sealing of O type circle and plastic seal commonly used are no longer suitable, because main body, joint and the valve port parts of flow dontroller are metal material, consider the characteristic of expanding with heat and contract with cold of material; Employing had both solved high temperature resistant problem with the metal o-ring of material, had solved the difference of expanding with heat and contract with cold of material again; The normal temperature assembling, hot operation.
The above; Be merely the preferable embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technician who is familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with the protection domain of claims.
Claims (3)
1. high temperature fluid detection system; It is characterized in that; Comprise high-temperature gas mass flow measurement and control do-part, high temperature conjunction cable, signal processing and control section; Said high-temperature gas mass flow measurement and control do-part and said signal processing and control section split setting connect through said high temperature conjunction cable between the two.
2. high temperature fluid detection system according to claim 1 is characterized in that, said high-temperature gas mass flow measurement comprises sensor, shunt, flow control valve with the control do-part, and said signal processing and control section comprise control circuit board.
3. high temperature fluid detection system according to claim 2 is characterized in that, the sealing position between said high-temperature gas mass flow measurement and each element of control do-part is provided with metal packing washer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120506390 CN202360852U (en) | 2011-12-07 | 2011-12-07 | High-temperature fluid detection system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120506390 CN202360852U (en) | 2011-12-07 | 2011-12-07 | High-temperature fluid detection system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202360852U true CN202360852U (en) | 2012-08-01 |
Family
ID=46572040
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120506390 Expired - Lifetime CN202360852U (en) | 2011-12-07 | 2011-12-07 | High-temperature fluid detection system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202360852U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370959A (en) * | 2015-12-24 | 2016-03-02 | 河南华润电力首阳山有限公司 | Method and device for adjusting nonlinearity degree of valve |
-
2011
- 2011-12-07 CN CN 201120506390 patent/CN202360852U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105370959A (en) * | 2015-12-24 | 2016-03-02 | 河南华润电力首阳山有限公司 | Method and device for adjusting nonlinearity degree of valve |
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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: 20120801 |