CN204731600U - A kind of stabilising arrangement of System steam pressure - Google Patents
A kind of stabilising arrangement of System steam pressure Download PDFInfo
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- CN204731600U CN204731600U CN201520359551.7U CN201520359551U CN204731600U CN 204731600 U CN204731600 U CN 204731600U CN 201520359551 U CN201520359551 U CN 201520359551U CN 204731600 U CN204731600 U CN 204731600U
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Abstract
A kind of stabilising arrangement of System steam pressure, comprise compressor, PLC, it is characterized in that the import of described compressor and the steam supply end junction of jet chimney are provided with the first pressure transducer, the outlet of compressor and the consumption vapour end junction of jet chimney are provided with the second pressure transducer, described compressor is connected with the output terminal of the frequency converter controlling compressor rotary speed, the signal input part of frequency converter is connected with the output terminal of PLC, and the signal input part of PLC is connected with first, second pressure transducer respectively with output terminal.The utility model has that structural safety is reasonable, vapor pressure is stablized, increases work efficiency.Compared to the prior art, the utility model realizes the stable of System steam pressure, avoiding vapor pressure fluctuation to producing the negative effect brought, using the method for supercharging to carry out stable vapor pressure, compressor changes energy in steam into the trade union that steam does and is reused.
Description
Technical field
The utility model belongs to pressure control equipment technical field, particularly relates to a kind of stabilising arrangement of System steam pressure.
Background technology
At present, for a lot of middle-size and small-size chemical enterprise, along with the lifting of production capacity, steam often occurs that steam supply is inadequate, and vapor pressure fluctuation is comparatively large and affect normally carrying out of production.Particularly existing batch production has again quantity-produced chemical enterprise, continuous seepage workshop section needs stable vapor pressure, and batch production workshop section one opens, then System steam pressure will immediately decline to a great extent, batch production workshop section one stops, then System steam pressure has and suddenly rises, very unfavorable to continuous seepage workshop section like this.This not only can cause continuous seepage workshop section often to need to regulate, and vapor pressure rises suddenly and sharply suddenly and also there is potential safety hazard.
For the fluctuation of vapor pressure, mainly increase boiler at present and increase steam supply amount, then carry out stable vapor pressure by controlling opening of valve.Increase boiler and can bring cost of investment and running cost, secondly, the benefit of boiler also can decrease, but can not give full play of the effect of boiler; And the too little meeting of valve opening causes vapor pressure in boiler excessive, reduces heat-transfer effect and also brings potential safety hazard.
Utility model content
The utility model provides a kind of stabilising arrangement of System steam pressure, in order to solve the technical matters such as vapor pressure instability, the supply of steam interval.
In order to solve the problem, the technical scheme that the utility model adopts is: a kind of stabilising arrangement of System steam pressure, comprise compressor, PLC, it is characterized in that the import of described compressor and the steam supply end junction of jet chimney are provided with the first pressure transducer, the outlet of compressor and the consumption vapour end junction of jet chimney are provided with the second pressure transducer, described compressor is connected with the output terminal of the frequency converter controlling compressor rotary speed, the signal input part of frequency converter is connected with the output terminal of PLC, the signal input part of PLC and output terminal are respectively with first, second pressure transducer connects.
As preferably, described compressor is high-speed centrifugal compressor, and compressor import and export is equipped with retaining valve.
The utility model has that structural safety is reasonable, vapor pressure is stablized, increases work efficiency.Compared to the prior art, the utility model realizes the stable of System steam pressure, avoiding vapor pressure fluctuation to producing the negative effect brought, using the method for supercharging to carry out stable vapor pressure, compressor changes energy in steam into the trade union that steam does and is reused; The low pressure of compressor inlet is more conducive to steam and comes from boiler conveying, can reduce vapor pressure in boiler simultaneously, more be conducive to the vaporization of water in boiler, to produce more steam, finally play the effect improving boiler efficiency.
Accompanying drawing explanation
Fig. 1 is device schematic diagram of the present utility model.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described in further detail.
Shown in composition graphs 1, the stabilising arrangement of this System steam pressure is by compressor 1, frequency converter 4, PLC 5 and first, second pressure transducer 2, 3 compositions, the import of its compressor 1 and steam supply end 60 junction of jet chimney are provided with the first pressure transducer 2, the outlet of compressor 1 and consumption vapour end 61 junction of jet chimney are provided with the second pressure transducer 3, compressor 1 is connected with the output terminal of the frequency converter 4 controlling compressor rotary speed, the signal input part of frequency converter 4 is connected with the output terminal of PLC 5, compressor 1 enters, outlet is equipped with retaining valve 8, prevent steam flow from flowing backwards, following steps setting is carried out to jet chimney:
Step one, on jet chimney the stabilising arrangement of installation system vapor pressure, first, second pressure transducer 2,3 detects the vapor pressure in jet chimney, ensures the lasting supply of steam simultaneously;
Step 2, the vapor pressure determining needed for normal production, vapor pressure needed for it is that each consumption vapour equipment runs well the minimum vapor pressure needed;
Step 3, using compressor 1 top hole pressure as controlled variable, compressor 1 inlet pressure is as feed forward variable, compressor 1 rotating speed is as performance variable, compressor 1 exit pressure levels is set to 0 ~ 0.02Mpa higher than required vapour pressure force value, the mxm. of compressor 1 rotational speed operation scope is the maximum speed of compressor apparatus, the signal input part of PLC 5 and output terminal are respectively with first, second pressure transducer 2, 3 connect, first, second pressure transducer 2, the vapor pressure of detection is passed to PLC 5 by 3, PLC 5 can regulate compressor 1 compressed capability at compressor 1 top hole pressure below or above increasing or reduce frequency converter 4 frequency during required pressure,
Step 4, setting compressor 1 rotational speed operation scope, compressor 1 rotational speed operation range set is 100 ~ 40000r/min, and compressor 1 is high-speed centrifugal compressor, and vapor pressure is promoted 0 ~ 0.3Mpa.
In whole process, System steam pressure surge is in 0.05Mpa, and pressure only needs 2 ~ 12 minutes used times from dropping to recovery, and continuous workshop section is influenced less.
Taking when vapor pressure meets production work, compressor quits work, and without the need to carrying out current limliting or supercharging to steam flow, steam flow directly passes through compressor.
Finally, it should be pointed out that above embodiment is only the more representational example of the utility model.Obviously, the utility model is not limited to above-mentioned embodiment, can also have many distortion.Every above embodiment is done according to technical spirit of the present utility model any simple modification, equivalent variations and modification, all should think and belong to protection domain of the present utility model.
Claims (2)
1. the stabilising arrangement of a System steam pressure, comprise compressor, PLC, it is characterized in that the import of described compressor and the steam supply end junction of jet chimney are provided with the first pressure transducer, the outlet of compressor and the consumption vapour end junction of jet chimney are provided with the second pressure transducer, described compressor is connected with the output terminal of the frequency converter controlling compressor rotary speed, the signal input part of frequency converter is connected with the output terminal of PLC, and the signal input part of PLC is connected with first, second pressure transducer respectively with output terminal.
2. the stabilising arrangement of a kind of System steam pressure according to claim 1, it is characterized in that described compressor is high-speed centrifugal compressor, compressor import and export is equipped with retaining valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520359551.7U CN204731600U (en) | 2015-05-29 | 2015-05-29 | A kind of stabilising arrangement of System steam pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520359551.7U CN204731600U (en) | 2015-05-29 | 2015-05-29 | A kind of stabilising arrangement of System steam pressure |
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| Publication Number | Publication Date |
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| CN204731600U true CN204731600U (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520359551.7U Active CN204731600U (en) | 2015-05-29 | 2015-05-29 | A kind of stabilising arrangement of System steam pressure |
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| CN (1) | CN204731600U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950933A (en) * | 2015-05-29 | 2015-09-30 | 湖北绿色家园精细化工股份有限公司 | Device for stabilizing steam pressure of system |
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2015
- 2015-05-29 CN CN201520359551.7U patent/CN204731600U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104950933A (en) * | 2015-05-29 | 2015-09-30 | 湖北绿色家园精细化工股份有限公司 | Device for stabilizing steam pressure of system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 433000 Xianhe national high tech Zone, Xiantao new material industrial park, No. Avenue, No. 1 Patentee after: Hubei green home materials technology Limited by Share Ltd Address before: 60 No. 433000 Hubei province Xiantao Xiantao office Sha Tsui Road Patentee before: HUBEI GREENHOME FINE CHEMICAL CO., LTD. |
|
| CP03 | Change of name, title or address |