CN202795099U - Pressure control system for steam heating devices - Google Patents
Pressure control system for steam heating devices Download PDFInfo
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- CN202795099U CN202795099U CN 201220251368 CN201220251368U CN202795099U CN 202795099 U CN202795099 U CN 202795099U CN 201220251368 CN201220251368 CN 201220251368 CN 201220251368 U CN201220251368 U CN 201220251368U CN 202795099 U CN202795099 U CN 202795099U
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Abstract
The utility model relates to a pressure control system for steam heating devices. The system comprises a steam pressure source, a gas distribution cylinder, a steam main channel, branch channels, and a PID pressure control instrument. The system is characterized in that the gas distribution cylinder is communicated with the steam pressure source through the steam main channel; one end of the branch channel is connected with the gas distribution cylinder, and the other end of the branch channel is communicated with a corresponding steam heating device; adjustment valves are mounted on the branch channels; a pressure sensor is mounted on the gas distribution cylinder and used for detecting the pressure in the steam heating devices and giving a feedback to the PID pressure control instrument; and the PID pressure control instrument is used for controlling the open degree of the adjustment valves. The pressure control system provided by the utility model can effectively reduce the steam consumption, improve the thermal efficiency and output rate, has accurate pressure control and simple operation, and prevent device damages caused by overpressure.
Description
Technical field
The utility model relates to the steam-heating apparatus technical field, is specifically related to a kind of control pressurer system for steam-heating apparatus.
Background technology
For steam-heating apparatus, such as continuous tray drier, heating and stirring tank etc., the personnel of all operations equipment pay special attention to two parameters, i.e. heating steam pressure and the temperature that is heated material; Corresponding these two parameters, common control method has:
(1) install stop valve additional at jet chimney, manual adjustments valve open degree is come controlled pressure size, heating material after temperature, the manual-lock valve; The shortcoming of the method is: when 1. steam was by valve body, valve body also was heated, and can be burned because of carelessness during operation; 2. delivering vapor pressure in boiler room changes or other makes steam heated device power-up, when shutting down, causes that vapor pressure produces fluctuation in the pipeline with pipeline, and operating personnel need frequent steam regulation valve, and labour intensity is large, and the valve spoilage is high; 3. steam consumption is large, and accuracy of temperature control is poor, in a single day carelessness of operating personnel when vapor pressure is too high, and superpressure meeting damage equipment can't be protected equipment, has damaged many such as the used continuous tray drier of applicant institute unit, and has required vapor pressure can not surpass 5 ㎏.
(2) install stop valve and reduction valve additional at jet chimney, effectively protection equipment is avoided the damage that superpressure causes.But shortcoming is: when 1. vapor pressure diminished in the pipeline, the vapor pressure that is transported on the equipment through reduction valve was lower, and equipment thermal efficiency reduces, the heating material time lengthening, and the equipment power consumption increases, and production capacity descends; 2. steam consumption is large, and accuracy of temperature control is poor, and operating process is loaded down with trivial details.
(3) install autocontrol valve additional at jet chimney, controllability strengthens.But shortcoming is: 1. can't satisfy equipment is the again requirement of temperature control of pressure control; 2. can't satisfy the requirement that many firing equipments of same jet chimney are controlled simultaneously.
Existing continuous tray drier (coiling dried machine) equipment is more, pressure control and temperature control rely on manual adjustments, operating process is loaded down with trivial details, and energy consumption is large, and labor intensity of operating staff is large, what make us " headache " most is the problem of vapor pressure and heating material temperature, the vapor pressure fluctuation range that heating plate in the dried machine of dish bears is larger, easily exceeds the device design bearing capacity, causes heating plate to be prone to gas leak phenomenon, maintenance difficulty is large, the cycle is long, and equipment failure rate is high.
Summary of the invention
The technical problems to be solved in the utility model provides a kind ofly can effectively reduce steam consumption, improve the thermal efficiency and output capacity, pressure control is accurately simple to operate and can avoid the control pressurer system that is used for steam-heating apparatus of superpressure damage equipment.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
A kind of control pressurer system for steam-heating apparatus, comprise the steam potential source, divide gas bag, the main steam header road, lateral, PID pressure controller table, gas bag was communicated with the steam potential source via described main steam header road in described minute, described lateral one termination is led to described minute gas bag, the other end is communicated to corresponding steam-heating apparatus, in described main steam header road variable valve is installed, at described minute gas bag pressure transducer is installed, described pressure transducer is for detection of vapor pressure and feed back to described PID pressure controller table, and described PID pressure controller table is controlled the size of described variable valve open degree.
Above-mentioned control system also comprises the PID temperature control instrument, be arranged at temperature sensor in the steam-heating apparatus, corresponding to the flow control valve of described lateral, described flow control valve is installed in each lateral accordingly; Described temperature sensor is for detection of the temperature in the steam-heating apparatus and feed back to described PID temperature control instrument, the size of flow control valve open degree in described each lateral of described PID temperature control instrument control.
Described variable valve is pneumatic control valve or electric control valve.
Described steam-heating apparatus is the dried machine of dish or heating and stirring tank.
Described steam potential source is steam boiler.
The utlity model has actively useful effect:
1. can satisfy a valve with the requirement of time control multimachine and run into vapor pressure fluctuation that trunk line vapor pressure fluctuation or many firing equipment starts, shutdown produce when larger, this system can make rapid reaction makes controlled device obtain stablizing vapor pressure, effectively prevent the equipment superpressure, reduce maintenance personal's workload, reduce the maintenance of equipment expense, improved equipment thermal efficiency and output capacity;
2. simplify the loaded down with trivial details operating process of steam-heating apparatus, need not manually-operated valve open degree size, improved the operator safety coefficient, greatly reduced operating personnel's labour intensity.
3. can be widely used in coiling the voltage stabilizing temperature control control of the steam-heating apparatuss such as dried machine, regenerated liquid heating and stirring tank.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of thermostat unit of the present utility model.
1 is a minute gas bag among the figure, and 2,5 is lateral, and 3 is the main steam header road, and 4 is pneumatic control valve, 6 is pressure transducer, and 7 is drainage pipeline, and 8 is drain valve, and 9,10 are the dried machine of dish, 11 condensation water collection pipelines, 12 is the condensation water collection pond, 13,14,15,16,17,18 is flow control valve.
Embodiment
Further set forth the utility model below in conjunction with specific embodiment.
1 one kinds of control pressurer systems that are used for steam-heating apparatus of embodiment, referring to Fig. 1, comprise steam boiler, divide gas bag 1, main steam header road 3, lateral 2,5, PID pressure controller table (not shown), gas bag 1 was communicated with steam boiler via described main steam header road 3 in described minute, lateral 2, a separately end of 5 is connected respectively minute gas bag 1, the other end is communicated to the dried machine of corresponding dish separately, in main steam header road 3 pneumatic control valve 4 is installed, at described minute gas bag 1 pressure transducer 6 is installed, described pressure transducer 6 is for detection of vapor pressure and feed back to described PID pressure controller table, and described PID pressure controller table is controlled the size of described variable valve open degree.
The course of work: after the saturated vapour in the steam boiler enters minute gas bag 1 by main steam header road 3, the force value that pressure transducer 6 will detect steam changes 0～20MA current signal or 0～5V voltage signal etc. into, feed back in the PID control instrument, compare through computing and setting value (the required vapor pressure of equipment), thereby the output control signal comes the size of regulating and controlling valve open degree to obtain coiling the pressure of the required heating steam of dried machine.
Control principle: vapor pressure value → pressure unit electric signal → instrument output electrical signals → topworks → electric signal changes mechanical action.
If control instrument is set as 5 ㎏, vapor pressure rises to suddenly 8 ㎏, pressure unit with signal feedback in control instrument → the instrument output signal value reduces → the variable valve open degree reduces → divide vapor pressure decline → system held pressure 5 ㎏ in the drum.Principle of work is opposite during many simultaneously working steam pressure decline of machines.
2 one kinds of control pressurer systems that are used for steam-heating apparatus of embodiment, referring to Fig. 2, be with the difference of embodiment 1, this control system also comprises thermostat unit, comprise the PID temperature control instrument, be arranged at temperature sensor in the steam-heating apparatus, corresponding to the flow control valve of each lateral, described flow control valve is installed in each lateral accordingly; Described temperature sensor is for detection of the temperature in the steam-heating apparatus and feed back to described PID temperature control instrument, the size of flow control valve open degree in described each lateral of described PID temperature control instrument control.
Control principle: coil dried machine internal temperature → probe and change temperature value into electric signal → instrument output electrical signals → topworks → electric signal transformation mechanical action.
Temperature sensor will coil dried built-in temperature and feed back to the PID temperature control instrument, thereby by control instrument output signal regulating and controlling valve open degree control heating steam amount size; Variable valve standard-sized sheet when built-in temperature and design temperature differ larger, temperature during near setting value control valve opening reduce gradually, valve closing when temperature equals setting value, built-in temperature decline valve is opened again automatically.
Each the concrete parameter or the equal of parts that change in above-described embodiment substitute, and can form a plurality of specific embodiments, are common variation range of the present utility model, describe in detail no longer one by one at this.
Claims (5)
1. control pressurer system that is used for steam-heating apparatus, comprise the steam potential source, divide gas bag, the main steam header road, lateral, PID pressure controller table, it is characterized in that, gas bag was communicated with the steam potential source via described main steam header road in described minute, described lateral one termination is led to described minute gas bag, the other end is communicated to corresponding steam-heating apparatus, in described main steam header road variable valve is installed, at described minute gas bag pressure transducer is installed, described pressure transducer is for detection of vapor pressure and feed back to described PID pressure controller table, and described PID pressure controller table is controlled the size of described variable valve open degree.
2. the control pressurer system for steam-heating apparatus according to claim 1, it is characterized in that, also comprise the PID temperature control instrument, be arranged at temperature sensor in the steam-heating apparatus, corresponding to the flow control valve of described lateral, described flow control valve is installed in each lateral accordingly; Described temperature sensor is for detection of the temperature in the steam-heating apparatus and feed back to described PID temperature control instrument, the size of flow control valve open degree in described each lateral of described PID temperature control instrument control.
3. the control pressurer system for steam-heating apparatus according to claim 1 and 2 is characterized in that, described variable valve is pneumatic control valve or electric control valve.
4. the control pressurer system for steam-heating apparatus according to claim 1 and 2 is characterized in that, described steam-heating apparatus is the dried machine of dish or heating and stirring tank.
5. the control pressurer system for steam-heating apparatus according to claim 1 and 2 is characterized in that, described steam potential source is steam boiler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251368 CN202795099U (en) | 2012-05-31 | 2012-05-31 | Pressure control system for steam heating devices |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220251368 CN202795099U (en) | 2012-05-31 | 2012-05-31 | Pressure control system for steam heating devices |
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| Publication Number | Publication Date |
|---|---|
| CN202795099U true CN202795099U (en) | 2013-03-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220251368 Expired - Fee Related CN202795099U (en) | 2012-05-31 | 2012-05-31 | Pressure control system for steam heating devices |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196812A (en) * | 2013-04-26 | 2013-07-10 | 哈尔滨工业大学 | Hydrogen separating membrane seepage hydrogen performance measuring device |
| CN103438430A (en) * | 2013-09-02 | 2013-12-11 | 苏州赛斯德工程设备有限公司 | Recovery system of condensation water |
| CN105864640A (en) * | 2015-01-23 | 2016-08-17 | 上海东冠纸业有限公司 | Steam bleeding device capable of precisely adjusting steam output pressure |
| CN106681393A (en) * | 2016-12-29 | 2017-05-17 | 宁波杭州湾新区祥源动力供应有限公司 | Process steam flow control apparatus |
| CN107983274A (en) * | 2017-11-22 | 2018-05-04 | 山东伯仲真空设备股份有限公司 | Low Temperature Steam heating means |
| CN113528258A (en) * | 2021-08-24 | 2021-10-22 | 燕京啤酒(玉林)有限公司 | Pressure control system of boiling pot |
| CN113669628A (en) * | 2021-07-27 | 2021-11-19 | 中煤科工清洁能源股份有限公司 | Operation monitoring and online fault diagnosis system for steam heating network |
-
2012
- 2012-05-31 CN CN 201220251368 patent/CN202795099U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103196812A (en) * | 2013-04-26 | 2013-07-10 | 哈尔滨工业大学 | Hydrogen separating membrane seepage hydrogen performance measuring device |
| CN103438430A (en) * | 2013-09-02 | 2013-12-11 | 苏州赛斯德工程设备有限公司 | Recovery system of condensation water |
| CN105864640A (en) * | 2015-01-23 | 2016-08-17 | 上海东冠纸业有限公司 | Steam bleeding device capable of precisely adjusting steam output pressure |
| CN106681393A (en) * | 2016-12-29 | 2017-05-17 | 宁波杭州湾新区祥源动力供应有限公司 | Process steam flow control apparatus |
| CN107983274A (en) * | 2017-11-22 | 2018-05-04 | 山东伯仲真空设备股份有限公司 | Low Temperature Steam heating means |
| CN113669628A (en) * | 2021-07-27 | 2021-11-19 | 中煤科工清洁能源股份有限公司 | Operation monitoring and online fault diagnosis system for steam heating network |
| CN113528258A (en) * | 2021-08-24 | 2021-10-22 | 燕京啤酒(玉林)有限公司 | Pressure control system of boiling pot |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130313 Termination date: 20190531 |
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| CF01 | Termination of patent right due to non-payment of annual fee |