CN205315325U - A control system for reacting gas compressor - Google Patents
A control system for reacting gas compressor Download PDFInfo
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- CN205315325U CN205315325U CN201520915722.XU CN201520915722U CN205315325U CN 205315325 U CN205315325 U CN 205315325U CN 201520915722 U CN201520915722 U CN 201520915722U CN 205315325 U CN205315325 U CN 205315325U
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- Prior art keywords
- compressor
- reaction gas
- flow
- suction port
- gas suction
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- 239000012495 reaction gas Substances 0.000 claims abstract description 90
- 238000010992 reflux Methods 0.000 claims abstract description 31
- 230000000052 comparative effect Effects 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 12
- 238000001514 detection method Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 5
- 230000002159 abnormal effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 238000007670 refining Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Control Of Positive-Displacement Air Blowers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a control field discloses a control system for reacting gas compressor. Wherein, this system includes: detection device is used for detecting the flow of reaction gas suction port of compressor, controlling means, with detection device connects for with the detection the flow of reaction gas suction port of compressor carries out the comparison with the flow of surging to control according to the comparative result the by pass vavle of reaction gas compressor, and the by pass vavle, with controlling means connects for make under the condition about opening the gas reflux of reaction gas compressor export arrives reaction gas suction port of compressor. Through using the utility model discloses foretell control system can prevent to react gas compressor surging's emergence effectively.
Description
Technical field
This utility model relates to control field, in particular it relates to a kind of control system for reaction gas compressor.
Background technology
Reaction gas compressor is the key equipment in refining hydrocarbon separation process, and its effect is that reaction gas is compressed, and improves the pressure of reaction gas, provides condition for follow-up separation.
Reaction gas compressor plays important role in coal chemical industry, but in the running of compressor, surge phenomenon often occurs. Surge is a kind of abnormal work phenomenon of reaction gas compressor, it is noteworthy characterized by: cause that suction port of compressor flow reduces for some reason, when being reduced to a certain degree, producing serious rotating stall in whole diffuser runner, compressor delivery pressure declines suddenly; When the pressure of the pipe network being connected with compressor outlet is higher than the outlet pressure of compressor, the air-flow of pipe network flows back to compressor, until when the pressure of pipe network drops to lower than the outlet pressure of compressor, compressor just restarts to pipe network aerofluxus, and now compressor returns to normal operating conditions. After ductwork pressure returns to normal pressure, if suction port of compressor flow is still less than the minimum discharge producing surging condition, compressor diffuser runner produces again serious rotating stall, compressor delivery pressure declines again, ductwork pressure is more than Compressor Discharge Pressure, and the air-flow in pipe network flows back to compressor again. So constantly circulating, create a kind of periodically air-flow oscillatory occurences in compressor assembly, this phenomenon is referred to as " surge ".
While surge phenomenon occurs, in reaction gas compressor body, because of the abnormal flow of air-flow, blare can be sent. Meanwhile, compressor also can produce vibration. But, in practical operation, compressor runs not under surging condition, the frame for movement of compressor can be produced serious harm because running in this case, concrete harm have following some: (1) makes the rotor of compressor and stator bear the effect of alternate stress and rupture;(2) making compressor interstage pressure not normal, thus causing judder, result can cause the damage of interstage seal and thrust bearing; (3) increasing the temperature difference of impeller and main shaft, the magnitude of interference destroying impeller makes impeller loosen; (4) make rotor and stator mutually collide, cause major accident. Accordingly, it would be desirable to a kind of system that can effectively prevent reaction gas compressor surge.
Utility model content
The purpose of this utility model is to provide a kind of control system for reaction gas compressor, to solve the problem that surge occurs in reaction gas compressor of the prior art.
To achieve these goals, this utility model provides a kind of control system for reaction gas compressor. Wherein, this system includes: detecting device, for detecting the flow of described reaction gas suction port of compressor; Control device, be connected with described detecting device, for the flow of the described reaction gas suction port of compressor detected and Surging flow being compared, and control the reflux inlet of described reaction gas compressor according to comparative result; And reflux inlet, it is connected with described control device, is used for the gas backstreaming making described reaction gas compressor outlet when opening to described reaction gas suction port of compressor.
Pass through technique scheme, the flow of described reaction gas suction port of compressor can be detected, afterwards the flow of the reaction gas suction port of compressor detected and Surging flow are compared, such that it is able to control the reflux inlet (described reflux inlet can make the gas backstreaming of described reaction gas compressor outlet to described reaction gas suction port of compressor when opening) of described reaction gas compressor according to comparative result. Thus, it is possible to by the control to described reflux inlet, it is achieved the adjustment of the flow of described reaction gas suction port of compressor, thus preventing the generation of the surge of described reaction gas compressor, avoid the infringement to reaction gas compressor because surge problems brings simultaneously.
Other features and advantages of the utility model will be described in detail in detailed description of the invention part subsequently.
Accompanying drawing explanation
Accompanying drawing is used to offer and is further appreciated by of the present utility model, and constitutes a part for description, is used for explaining this utility model, but is not intended that restriction of the present utility model together with detailed description below. In the accompanying drawings:
Fig. 1 is the block diagram of the control system for reaction gas compressor according to a kind of embodiment of this utility model; And
Fig. 2 is the flow chart of the control method for reaction gas compressor according to a kind of embodiment of this utility model.
Detailed description of the invention
Below in conjunction with accompanying drawing, detailed description of the invention of the present utility model is described in detail. It should be appreciated that detailed description of the invention described herein is merely to illustrate and explains this utility model, it is not limited to this utility model.
Fig. 1 is the block diagram of the control system for reaction gas compressor according to a kind of embodiment of this utility model.
As it is shown in figure 1, the control system for reaction gas compressor that a kind of embodiment of this utility model provides includes: detecting device 10, for detecting the flow of described reaction gas suction port of compressor; Control device 20, be connected with described detecting device 10, for the flow of the described reaction gas suction port of compressor detected and Surging flow being compared, and control the reflux inlet of described reaction gas compressor according to comparative result; And reflux inlet 30, it is connected with described control device 20, is used for the gas backstreaming making described reaction gas compressor outlet when opening to described reaction gas suction port of compressor.
Wherein, described Surging flow refers to described reaction gas compressor it may happen that the critical flow of reaction gas suction port of compressor corresponding to surge condition. Those skilled in the art can determine this Surging flow by mode existing in prior art.
By the flow of described reaction gas suction port of compressor is detected, afterwards the flow of the reaction gas suction port of compressor detected and Surging flow are compared, such that it is able to control the reflux inlet (described reflux inlet can make the gas backstreaming of described reaction gas compressor outlet to described reaction gas suction port of compressor when opening) of described reaction gas compressor according to comparative result. Thus, it is possible to by the control to described reflux inlet, it is achieved the adjustment of the flow of described reaction gas suction port of compressor, thus preventing the generation of the surge of described reaction gas compressor, avoid the infringement to reaction gas compressor because surge problems brings simultaneously.
According to this utility model one embodiment, the reflux inlet 30 that described control device 20 controls described reaction gas compressor according to comparative result includes:
When the flow of the described reaction gas suction port of compressor detected is less than described Surging flow, described control device 20 controls described reflux inlet 30 and opens;
When the flow of the described reaction gas suction port of compressor detected is more than described Surging flow, described control device 20 controls described reflux inlet 30 and closes.
Thus, when detected flow is less than described Surging flow, control device 20 can control described reflux inlet 30 and open, thus can so that the gas backstreaming of described reaction gas compressor outlet be to described reaction gas suction port of compressor, guarantee that the flow of described reaction gas suction port of compressor is always more than Surging flow, and then prevent surge from occurring. And when working as detected flow more than described Surging flow, control device 20 can control described reflux inlet 30 and close.
According to this utility model one embodiment, this system can also include storage device, is used for storing described Surging flow.
Wherein, this storage device can be integrated in control device 20, it is also possible to is configured independent of controlling device 20. For controlling device 20, it can be programmable logic controller (PLC) (PLC), but this utility model is not limited to this.
According to this utility model one embodiment, this system can also include display device, is connected with described control device, for showing the flow of described reaction gas suction port of compressor detected, described Surging flow and described comparative result.
Wherein, display device can be liquid crystal display or touch display screen, and this is not defined by this utility model.
By the control system for reaction gas compressor above-mentioned at this utility model arranges display, such that it is able to the flow of described reaction gas suction port of compressor detected, described Surging flow and described comparative result are shown on the display apparatus, it is simple to associative operation people is with carrying out observation analysis.
According to this utility model one embodiment, described detecting device 10 can be flow transducer. Alternatively, described detecting device 10 can also be any other the suitable device of the detection being capable of flow.
Fig. 2 is the flow chart of the control method for reaction gas compressor according to a kind of embodiment of this utility model.
As in figure 2 it is shown, the control method for reaction gas compressor that a kind of embodiment of this utility model provides includes:
S200, detects the flow of described reaction gas suction port of compressor;And
S202, the flow of the described reaction gas suction port of compressor detected and Surging flow are compared, and the reflux inlet according to the comparative result described reaction gas compressor of control, wherein said reflux inlet makes the gas backstreaming of described reaction gas compressor outlet to described reaction gas suction port of compressor when opening.
By the flow of described reaction gas suction port of compressor is detected, afterwards the flow of the reaction gas suction port of compressor detected and Surging flow are compared, such that it is able to control the reflux inlet (described reflux inlet can make the gas backstreaming of described reaction gas compressor outlet to described reaction gas suction port of compressor when opening) of described reaction gas compressor according to comparative result. Thus, it is possible to by the control to described reflux inlet, it is achieved the adjustment of the flow of described reaction gas suction port of compressor, thus preventing the generation of the surge of described reaction gas compressor, avoid the infringement to reaction gas compressor because surge problems brings simultaneously.
In the method, step S202 includes:
S204, compares the flow of the described reaction gas suction port of compressor detected and Surging flow;
S206, controls the reflux inlet of described reaction gas compressor according to comparative result.
Wherein, step S206 includes:
S208, when the flow of the described reaction gas suction port of compressor detected is less than described Surging flow, controls described reflux inlet and opens;
S210, when the flow of the described reaction gas suction port of compressor detected is more than described Surging flow, controls described reflux inlet and closes.
Thus, when detected flow is less than described Surging flow, described reflux inlet can be controlled open, thus can so that the gas backstreaming of described reaction gas compressor outlet be to described reaction gas suction port of compressor, guarantee that the flow of described reaction gas suction port of compressor is always more than Surging flow, and then prevent surge from occurring. And when working as detected flow more than described Surging flow, it is possible to control described reflux inlet and close.
Preferred implementation of the present utility model is described in detail above in association with accompanying drawing; but; this utility model is not limited to the detail in above-mentioned embodiment; in technology concept of the present utility model; the technical solution of the utility model can being carried out multiple simple variant, these simple variant belong to protection domain of the present utility model.
It is further to note that each the concrete technical characteristic described in above-mentioned detailed description of the invention, in reconcilable situation, it is possible to be combined by any suitable mode. In order to avoid unnecessary repetition, various possible compound modes are no longer illustrated by this utility model separately.
Additionally, can also carry out combination in any between various different embodiment of the present utility model, as long as it is without prejudice to thought of the present utility model, it should be considered as content disclosed in the utility model equally.
Claims (5)
1. the control system for reaction gas compressor, it is characterised in that this system includes:
Detecting device, for detecting the flow of described reaction gas suction port of compressor;
Control device, be connected with described detecting device, for the flow of the described reaction gas suction port of compressor detected and Surging flow being compared, and control the reflux inlet of described reaction gas compressor according to comparative result; And
Reflux inlet, is connected with described control device, is used for the gas backstreaming making described reaction gas compressor outlet when opening to described reaction gas suction port of compressor.
2. system according to claim 1, it is characterised in that the reflux inlet that described control device controls described reaction gas compressor according to comparative result includes:
When the flow of the described reaction gas suction port of compressor detected is less than described Surging flow, described control device controls described reflux inlet and opens;
When the flow of the described reaction gas suction port of compressor detected is more than described Surging flow, described control device controls described reflux inlet and closes.
3. system according to claim 2, it is characterised in that this system also includes storage device, is used for storing described Surging flow.
4. system according to claim 3, it is characterised in that this system also includes display device, is connected with described control device, for showing the flow of described reaction gas suction port of compressor detected, described Surging flow and described comparative result.
5. the system according to any one of claim 1-4, it is characterised in that described detecting device is flow transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520915722.XU CN205315325U (en) | 2015-11-17 | 2015-11-17 | A control system for reacting gas compressor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520915722.XU CN205315325U (en) | 2015-11-17 | 2015-11-17 | A control system for reacting gas compressor |
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| Publication Number | Publication Date |
|---|---|
| CN205315325U true CN205315325U (en) | 2016-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520915722.XU Active CN205315325U (en) | 2015-11-17 | 2015-11-17 | A control system for reacting gas compressor |
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| CN (1) | CN205315325U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257580A (en) * | 2015-11-17 | 2016-01-20 | 神华集团有限责任公司 | Control system and method used for reaction gas compressor |
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2015
- 2015-11-17 CN CN201520915722.XU patent/CN205315325U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105257580A (en) * | 2015-11-17 | 2016-01-20 | 神华集团有限责任公司 | Control system and method used for reaction gas compressor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |