CN202694079U - Fuzzy control system of natural gas compressor adjusting valve - Google Patents
Fuzzy control system of natural gas compressor adjusting valve Download PDFInfo
- Publication number
- CN202694079U CN202694079U CN 201220316061 CN201220316061U CN202694079U CN 202694079 U CN202694079 U CN 202694079U CN 201220316061 CN201220316061 CN 201220316061 CN 201220316061 U CN201220316061 U CN 201220316061U CN 202694079 U CN202694079 U CN 202694079U
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- natural gas
- valve
- heat exchanger
- adjusting valve
- variable valve
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Abstract
The utility model provides a fuzzy control system of a natural gas compressor adjusting valve, which is characterized by comprising a PLC (Programmable Logic Controller), an adjusting valve (4), a heat exchanger (5), a temperature sensor (7), a natural gas pipeline and a cooling water pipeline, wherein a natural gas inlet valve (1) and a natural gas outlet valve (6) of the natural gas pipeline are respectively connected with a shell pass of the heat exchanger (5); an inlet valve (2) of the cooling water pipeline is connected with an inlet of the adjusting valve (4); an outlet of the adjusting valve (4) is connected with the shell pass of the heat exchanger (5); a cooling water outlet (3) is connected with the shell pass of the heat exchanger (5); the natural gas outlet valve (6) is provided with the temperature sensor (7); and the PLC receives a signal of the temperature sensor (7) and outputs a control signal to the adjusting valve (4). The whole cooling system has the advantages of smaller volume, simple structure, easiness for installation, convenience for operation and flexibility in system control; and the fuzzy control system is suitable for working under various working conditions, the control precision of a natural gas cooling temperature is higher, the investment and maintenance costs are lower and the energy consumption is reduced.
Description
Technical field
The utility model is a kind of natural gas compressor variable valve Fuzzy control system, belongs to the compressor train technical field of automatic control, relates in particular to a kind of compressor train operation valve varitrol.
Background technology
At present, the rock gas cooling of the compressor train output air cooling modes that adopt more, the input cost of air cooler is higher, and bulky, has increased field erected workload and operation expense, and not high to the control accuracy of natural gas temperature.
The utility model content
The purpose of this utility model is exactly the deficiency for existing cooling technology, a kind of natural gas compressor variable valve Fuzzy control system is provided, and is a kind of rational water-cooling pattern, by the regulating and controlling valve opening, and then control cools down discharge, realize the control of rock gas chilling temperature.
For achieving the above object, the utility model adopts following technical scheme, a kind of natural gas compressor variable valve Fuzzy control system, and it is characterized in that: it comprises PLC controller, variable valve, heat exchanger, temperature sensor and rock gas and cooling water pipeline; The Imported gas valve of gas pipeline is connected with the heat exchanger shell side with the gas outlet valve and is connected; The imported valve of cooling water pipeline is connected with the variable valve import, and the variable valve outlet is connected with the heat exchanger tube side, and coolant outlet is connected with the heat exchanger tube side, at gas outlet valve location mounting temperature sensor; The PLC controller receives the signal of temperature sensor, outputs a control signal to variable valve.
Wherein, described variable valve control signal is the 4-20mA current signal.
The utility model compared with prior art has following beneficial effect:
1. whole cooling system small volume is simple in structure, is easy to convenient operation is installed;
2. system's control is applicable to operation under the various working conditions flexibly;
3. rock gas chilling temperature control accuracy is higher;
4. input and maintenance cost are low;
5. reduction energy consumption.
Description of drawings
Fig. 1 is structural representation of the present utility model.
The drawing explanation:
1, Imported gas valve, 2, the cooling water inlet valve, 3, the coolant outlet valve, 4, variable valve, 5, heat exchanger, 6, the gas outlet valve, 7, temperature sensor.
Embodiment
Embodiment 1, with reference to Fig. 1, the Imported gas valve 1 of gas pipeline is connected with the gas outlet valve is connected with heat exchanger 5 shell sides respectively; The imported valve 2 of cooling water pipeline is connected with variable valve 4 imports, variable valve 4 outlets are connected with heat exchanger 5 tube sides, again coolant outlet 3 is connected with heat exchanger 5 tube sides, at gas outlet valve 6 position mounting temperature sensors 7, at last the PLC controller is connected with system, receive the signal of temperature sensor 7, output a control signal to variable valve 4, temperature sensor 7 signals are converted into electric current by transmitter and send into the PLC controller, the control signal of variable valve 4 is the 4-20mA current signal, initialize program in the PLC controller.
A kind of natural gas compressor variable valve Fuzzy control system described in the utility model, during work, compared by PLC controller reception Current Temperatures sensor signal and setting value, carry out PID (ratio, integration, differential) computing, output a control signal to variable valve, marking current is adjusted control valve opening, by the regulating and controlling valve opening, and then control enters the cooling water flow of heat exchanger, the control of realization rock gas chilling temperature.System adjusts pid data by method of trial and error in test process, finally select suitable characteristic parameter, so that the variable valve Fuzzy control system has been given play to optimal properties.
Claims (2)
1. natural gas compressor variable valve Fuzzy control system, it is characterized in that: it comprises PLC controller, variable valve (4), heat exchanger (5), temperature sensor (7) and rock gas and cooling water pipeline; The Imported gas valve (1) of gas pipeline is connected 6 with the gas outlet valve) be connected with heat exchanger (5) shell side respectively; The imported valve of cooling water pipeline (2) is connected with variable valve (4) import, variable valve (4) outlet is connected with heat exchanger (5) tube side, coolant outlet (3) is connected with heat exchanger (5) tube side, at gas outlet valve (6) position mounting temperature sensor (7); The PLC controller receives the signal of temperature sensor (7), outputs a control signal to variable valve (4).
2. a kind of natural gas compressor variable valve Fuzzy control system according to claim 1, it is characterized in that: described variable valve (4) control signal is the 4-20mA current signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220316061 CN202694079U (en) | 2012-07-02 | 2012-07-02 | Fuzzy control system of natural gas compressor adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220316061 CN202694079U (en) | 2012-07-02 | 2012-07-02 | Fuzzy control system of natural gas compressor adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202694079U true CN202694079U (en) | 2013-01-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220316061 Expired - Fee Related CN202694079U (en) | 2012-07-02 | 2012-07-02 | Fuzzy control system of natural gas compressor adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202694079U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403630A (en) * | 2016-09-14 | 2017-02-15 | 成都中光电科技有限公司 | Temperature adjusting device for wall cooling fan for thin film transistor-liquid crystal display (TFT-LCD) liquid crystal glass |
| CN115265249A (en) * | 2021-04-30 | 2022-11-01 | 中国石油天然气股份有限公司 | Device, method and equipment for regulating temperature of natural gas and storage medium |
-
2012
- 2012-07-02 CN CN 201220316061 patent/CN202694079U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106403630A (en) * | 2016-09-14 | 2017-02-15 | 成都中光电科技有限公司 | Temperature adjusting device for wall cooling fan for thin film transistor-liquid crystal display (TFT-LCD) liquid crystal glass |
| CN115265249A (en) * | 2021-04-30 | 2022-11-01 | 中国石油天然气股份有限公司 | Device, method and equipment for regulating temperature of natural gas and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: JEREH NATURAL GAS ENGINEERING CO., LTD. Free format text: FORMER NAME: YANTAI JEREH COMPRESSION EQUIPMENT CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 264003 Jerry Road, Laishan District, Shandong, Yantai, China, 9 Patentee after: Jie Rui gas engineering Co., Ltd Address before: 264003 Jerry Road, Laishan District, Shandong, Yantai, China, 9 Patentee before: Jereh Compression Equipment Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20150702 |
|
| EXPY | Termination of patent right or utility model |