CN221096795U - Energy-saving compressed air system - Google Patents
Energy-saving compressed air system Download PDFInfo
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- CN221096795U CN221096795U CN202323274222.6U CN202323274222U CN221096795U CN 221096795 U CN221096795 U CN 221096795U CN 202323274222 U CN202323274222 U CN 202323274222U CN 221096795 U CN221096795 U CN 221096795U
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- removal filter
- dust removal
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- output end
- storage tank
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- 239000000428 dust Substances 0.000 claims abstract description 58
- 238000001179 sorption measurement Methods 0.000 claims abstract description 22
- 230000008929 regeneration Effects 0.000 claims abstract description 17
- 238000011069 regeneration method Methods 0.000 claims abstract description 17
- 230000008014 freezing Effects 0.000 claims description 7
- 238000007710 freezing Methods 0.000 claims description 7
- 239000012535 impurity Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 239000002245 particle Substances 0.000 description 3
- 238000012805 post-processing Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Abstract
An energy-saving compressed air system, characterized in that: the air compressor comprises an air compressor, wherein the output end of the air compressor is communicated with the input end of a buffer air storage tank; the output end of the buffer air storage tank is communicated with the input end of the oil removal filter, and the output end of the oil removal filter is communicated with the input end of the freeze dryer; then is communicated to the input end of the first dust removing filter; the device is connected with the input end of a factory air storage tank and an instrument air storage tank through two pipelines respectively; the output end of the first dust removal filter is also connected with the input end of the micro-thermal regeneration adsorption dryer through a pipeline, and an electric shutoff valve is arranged between the first dust removal filter and the input end of the micro-thermal regeneration adsorption dryer; the output end of the micro-thermal regeneration adsorption dryer is connected with the input end of a second dust removal filter, and the output end of the second dust removal filter is connected to the input end of the gas storage tank for the instrument through a gas parent pipe for the instrument; and an electric shutoff valve is arranged at the output end of the second dust removal filter. The system can adjust the compressed air post-treatment operation system, reduce the cost and solve the problem of unstable operation of the compressed air for the instrument.
Description
Technical Field
The utility model relates to the technical field of compressed air preparation and storage of power plants, in particular to an energy-saving compressed air system.
Background
The compressed air systems of power plants are generally classified into three types, the first is instrument gas; the second is ash removal gas; the third is plant gas.
The gas quality requirement for the instrument is as follows: pressure: 0.6-0.75 MPa; pressure dew point: 10 ℃ lower than the lowest temperature of the working environment; oil content: < 10 mg/m; dust particle diameter: < 1 μg/m; dust content: < 1 mg/m.
The quality requirements of the ash removal gas are as follows: pressure: > 0.45MPa; pressure dew point: minimum ambient temperature; oil content: < 10 mg/m; dust particle diameter: < 1 μg/m; dust content: < 1 mg/m.
The quality requirements of the plant gas are as follows: pressure: > 0.6MPa; pressure dew point: minimum ambient temperature; oil content: < 12 mg/m; dust particle diameter: < 1 μg/m; dust content: < 1 mg/m.
There are two conventional arrangements of compressed air systems, in conventional designs:
In the first scheme, as shown in fig. 1, the compressed air is processed by a combined dryer, and a high-capacity post-processing system (an oil removal filter, a combined dryer and a dust removal filter) is required to be configured;
In the second scheme, as shown in fig. 2, although the plant gas is taken out from the buffer gas storage tank, the ash removal gas and the instrument gas pass through the same post-treatment system; the post-processing system parameters that need to be configured are large.
The quality requirements of the ash removal gas and the plant gas are lower, and the quality requirements can be met through the treatment of a freeze dryer.
The gas quality requirement for the instrument is higher, and the gas is generally treated by a micro-thermal adsorption dryer to reach the quality requirement. But when the air reaches a certain temperature in summer, the compressed air can meet the quality requirement after being processed by a freeze dryer, and the compressed air does not need to be processed by a micro-thermal adsorption dryer.
In the conventional design, the operation of the compressed air for the instrument is unstable, the pressure suddenly changes, and the tripping of the unit can be seriously caused, so that equipment is damaged.
Disclosure of utility model
According to the energy-saving compressed air system, the compressed air post-treatment operation system is adjusted according to the environmental temperature, so that the equipment investment cost and the operation cost are reduced, and the problem of unstable operation of the compressed air for the instrument is solved.
The technical scheme adopted for solving the technical problems is as follows: an energy-saving compressed air system comprises an air compressor, a buffer air storage tank, an oil removal filter, a freeze dryer and a first dust removal filter; the output end of the air compressor is communicated to the input end of the buffer air storage tank through a first pipeline; the output end of the buffer air storage tank is communicated with the input end of the oil removal filter through a second pipeline, and the output end of the oil removal filter is communicated with the input end of the freeze dryer through a third pipeline; the output end of the freeze dryer is communicated with the input end of the first dust removal filter;
The output end of the first dust removal filter is respectively connected with the input ends of the plant air storage tank and the instrument air storage tank through two pipelines, wherein an electric shutoff valve is arranged between the output end of the first dust removal filter and the input end of the plant air storage tank, and a dew point hygrometer and an electric shutoff valve are arranged between the output end of the first dust removal filter and the input end of the instrument air storage tank;
The output end of the first dust removal filter is also connected with the input end of the micro-thermal regeneration adsorption dryer through a pipeline, and an electric shutoff valve is arranged between the first dust removal filter and the input end of the micro-thermal regeneration adsorption dryer; the output end of the micro-thermal regeneration adsorption dryer is connected with the input end of a second dust removal filter, and the output end of the second dust removal filter is connected to the input end of the gas storage tank for the instrument through a gas parent pipe for the instrument;
And an electric shutoff valve is arranged at the output end of the second dust removal filter.
Further: the air compressors are provided with a plurality of groups, and the output ends of the plurality of groups of air compressors are connected to the first pipeline in parallel.
Further: the freezing dryer, the oil removal filter and the first dust removal filter are all provided with a plurality of groups, the freezing dryer, the oil removal filter and the first dust removal filter are in one-to-one correspondence to form a plurality of branches, and the branches are connected in parallel.
Further: the micro-thermal regeneration adsorption dryer and the second dust removal filter are correspondingly provided with a plurality of groups of branches, and the branches are connected in parallel.
Further: the air compressor is a screw air compressor.
The beneficial effects are that:
After the air of the system is treated by a ③ deoiling filter ④ freeze dryer ⑤ dust removing filter, the air is split, the factory air and the ash removing air are used as one air storage tank, the instrument air is used for further post-treatment, the model selection parameters of the ⑥ micro-thermal adsorption dryer and the ⑦ dust removing filter are smaller than the conventional design parameters, and the initial equipment investment cost is reduced.
A communication pipeline is arranged in the impurity gas main pipe and the instrument gas main pipe, and an f electric shutoff valve and a g dew point hygrometer are arranged in the pipeline. When the ambient temperature meets a certain condition, part of the equipment can be closed, so that the running cost of the equipment is reduced.
The quick shutoff valve e is arranged on the front pipeline of the plant air storage tank ⑨, and the running pressure of the compressed air for the instrument can be stabilized through the connecting pipeline and the quick shutoff valve e, so that the normal running of the unit is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of a first embodiment of the present utility model;
FIG. 2 is a schematic diagram of the overall structure of a second embodiment of the present utility model;
fig. 3 is a schematic diagram of a system structure according to an embodiment of the utility model.
The diagram is:
1. An air compressor, a 2 buffering air storage tank, a 3 deoiling filter, a 4 freezing dryer, a 5 first dust removing filter, a 6 micro-thermal regeneration adsorption dryer, a 7 second dust removing filter, an 8-meter air storage tank, a 9-factory air storage tank,
An electric shut-off valve a, an electric shut-off valve b, an electric shut-off valve c, an electric shut-off valve d, a quick shut-off valve e, an electric shut-off valve f and a g dew point hygrometer.
Detailed Description
As shown in fig. 3, an energy-saving compressed air system comprises an air compressor 1, a buffer air storage tank 2, an oil removal filter 3, a freeze dryer 4 and a first dust removal filter 5; the output end of the air compressor 1 is communicated with the input end of the buffer air storage tank 2 through a first pipeline; the output end of the buffer air storage tank 2 is communicated with the input end of the oil removal filter 3 through a second pipeline, and the output end of the oil removal filter 3 is communicated with the input end of the freeze dryer 4 through a third pipeline; the output of the freeze dryer 4 is connected to the input of a first dust filter 5.
In this embodiment, the air compressor 1 is a screw air compressor and is provided with three groups, and the output ends of the multiple groups of air compressors 1 are connected to the first pipeline in parallel.
The freezing dryer 4, the oil removal filter 3 and the first dust removal filter 5 are all provided with three groups, the freezing dryer 4, the oil removal filter 3 and the first dust removal filter 5 are in one-to-one correspondence to form a plurality of branches, and the branches are connected in parallel.
The output end of the first dust removal filter 5 is respectively connected with the input ends of the plant air storage tank 9 and the instrument air storage tank 8 through two pipelines, an electric shutoff valve e is arranged between the output end of the first dust removal filter and the input end of the plant air storage tank 9, and a dew point hygrometer g and an electric shutoff valve f are arranged between the output end of the first dust removal filter and the input end of the instrument air storage tank 8.
The output end of the first dust removal filter 5 is also connected with the input end of the micro-thermal regeneration adsorption dryer 6 through a pipeline, and an electric shutoff valve is arranged between the two; the output end of the micro-thermal regeneration adsorption dryer 6 is connected with the input end of a second dust removal filter 7, and the output end of the second dust removal filter 7 is connected to the input end of the gas storage tank 8 for the instrument through a gas parent pipe for the instrument.
In this embodiment, the micro-thermal regeneration adsorption dryer 6 and the second dust-removing filter 7 are provided with two groups of two branches in a one-to-one correspondence, and the two branches are connected in parallel.
The output ends of the two second dust removal filters 7 are respectively provided with an electric shutoff valve c and an electric shutoff valve d.
In the energy-saving compressed air system, after the air is processed by the air compressor 1, the buffer air storage tank 2, the oil removal filter 3, the freeze dryer 4 and the dust removal filter 5, the quality of the air can meet the quality requirements of overhaul gas and ash removal conveying gas for factories. In this embodiment, the air compressor 1 is a screw air compressor.
After the collection, the compressed air is divided into two paths, and one path enters a plant air storage tank 9 to each plant air and ash removal air point; the other path is processed by a micro-thermal adsorption dryer 6 and a dust removal filter 7 and then enters an instrument air storage tank 8 to each instrument air point. A communication pipeline is arranged in the impurity gas main pipe and the instrument gas main pipe, and an electric shutoff valve f and a dew point hygrometer g are arranged in the pipeline.
When the ambient temperature rises and the compressed air of the impurity gas main pipe reaches the dew point requirement, the electric shutoff valve f is opened, the electric shutoff valve a, b, c, d is closed, and the micro-thermal regeneration adsorption dryer 6 stops working. When the compressed air of the impurity gas parent pipe can not meet the dew point requirement, the electric shutoff valve f is closed, the electric shutoff valve a, b, c, d is opened, and the micro-thermal regeneration adsorption dryer 6 starts to work.
The front pipeline of the plant air storage tank 9 is provided with a quick shut-off valve e, when the pressure of the compressed air for the instrument is low, the quick shut-off valve e is closed, the electric shut-off valve f is opened, and the impurity air main pipe supplies air to the instrument air storage tank 8.
The system air is split after being treated by the oil removal filter 3, the freeze dryer 4 and the dust removal filter 5, the factory air and the ash removal air are used as one air storage tank, the instrument air is used for continuous post-treatment, the model selection parameters of the micro-thermal adsorption dryer 6 and the dust removal filter 7 are smaller than the conventional design parameters, and the initial equipment input cost is reduced.
A communication pipeline is arranged in the impurity gas main pipe and the instrument gas main pipe, and an electric shutoff valve f and a dew point hygrometer g are arranged in the pipeline. When the ambient temperature meets a certain condition, part of the equipment can be closed, so that the running cost of the equipment is reduced.
The front pipeline of the plant air storage tank 9 is provided with a quick shutoff valve e, and the compressed air operation pressure for the instrument can be stabilized through the communication pipeline and the quick shutoff valve e, so that the normal operation of the unit is ensured.
According to the embodiment, the connecting pipeline is arranged between the instrument air storage tank 8 and the impurity air storage tank, and the electric shutoff valve and the dew point hygrometer are arranged in the pipeline, so that the compressed air system adjusts the aftertreatment system along with different environment temperatures, the equipment investment and the operation cost are reduced, the stable operation of the instrument compressed air is ensured through the connecting pipeline and the quick shutoff valve in front of the factory air storage tank, and the system reliability is improved.
The structures, proportions, sizes, etc. shown in the drawings are shown only in connection with the disclosure of the present utility model, and are not intended to limit the scope of the utility model, which is defined by the claims, but rather by the terms of modification, variation of proportions, or adjustment of sizes, without affecting the efficacy or achievement of the present utility model, should be understood as falling within the scope of the present utility model. Also, the terms such as "upper", "lower", "front", "rear", "middle", and the like are used herein for descriptive purposes only and are not intended to limit the scope of the utility model for which the utility model may be practiced or for which the relative relationships may be altered or modified without materially altering the technical context.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. The present utility model is capable of modifications in the foregoing embodiments, as obvious to those skilled in the art, without departing from the spirit and scope of the present utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (5)
1. An energy-saving compressed air system, characterized in that: comprises an air compressor, a buffer air storage tank, an oil removal filter, a freeze dryer and a first dust removal filter; the output end of the air compressor is communicated to the input end of the buffer air storage tank through a first pipeline; the output end of the buffer air storage tank is communicated with the input end of the oil removal filter through a second pipeline, and the output end of the oil removal filter is communicated with the input end of the freeze dryer through a third pipeline; the output end of the freeze dryer is communicated with the input end of the first dust removal filter;
The output end of the first dust removal filter is respectively connected with the input ends of the plant air storage tank and the instrument air storage tank through two pipelines, wherein an electric shutoff valve is arranged between the output end of the first dust removal filter and the input end of the plant air storage tank, and a dew point hygrometer and an electric shutoff valve are arranged between the output end of the first dust removal filter and the input end of the instrument air storage tank;
The output end of the first dust removal filter is also connected with the input end of the micro-thermal regeneration adsorption dryer through a pipeline, and an electric shutoff valve is arranged between the first dust removal filter and the input end of the micro-thermal regeneration adsorption dryer; the output end of the micro-thermal regeneration adsorption dryer is connected with the input end of a second dust removal filter, and the output end of the second dust removal filter is connected to the input end of the gas storage tank for the instrument through a gas parent pipe for the instrument;
And an electric shutoff valve is arranged at the output end of the second dust removal filter.
2. An energy efficient compressed air system according to claim 1, wherein: the air compressors are provided with a plurality of groups, and the output ends of the plurality of groups of air compressors are connected to the first pipeline in parallel.
3. An energy efficient compressed air system according to claim 2, characterized in that: the freezing dryer, the oil removal filter and the first dust removal filter are all provided with a plurality of groups, the freezing dryer, the oil removal filter and the first dust removal filter are in one-to-one correspondence to form a plurality of branches, and the branches are connected in parallel.
4. An energy efficient compressed air system according to claim 1, wherein: the micro-thermal regeneration adsorption dryer and the second dust removal filter are correspondingly provided with a plurality of groups of branches, and the branches are connected in parallel.
5. An energy efficient compressed air system according to any one of claims 1 to 4, characterized in that: the air compressor is a screw air compressor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323274222.6U CN221096795U (en) | 2023-12-01 | 2023-12-01 | Energy-saving compressed air system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323274222.6U CN221096795U (en) | 2023-12-01 | 2023-12-01 | Energy-saving compressed air system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221096795U true CN221096795U (en) | 2024-06-07 |
Family
ID=91319638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323274222.6U Active CN221096795U (en) | 2023-12-01 | 2023-12-01 | Energy-saving compressed air system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221096795U (en) |
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2023
- 2023-12-01 CN CN202323274222.6U patent/CN221096795U/en active Active
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