CN210463579U - Air compressor machine waste heat recovery utilizes system - Google Patents
Air compressor machine waste heat recovery utilizes system Download PDFInfo
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- CN210463579U CN210463579U CN201921509951.6U CN201921509951U CN210463579U CN 210463579 U CN210463579 U CN 210463579U CN 201921509951 U CN201921509951 U CN 201921509951U CN 210463579 U CN210463579 U CN 210463579U
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- air compressor
- heat
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- water
- inlet
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- 238000011084 recovery Methods 0.000 title claims abstract description 43
- 239000002918 waste heat Substances 0.000 title claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 65
- 239000000498 cooling water Substances 0.000 claims abstract description 14
- 238000005338 heat storage Methods 0.000 claims abstract description 14
- 239000012530 fluid Substances 0.000 claims description 22
- 238000004064 recycling Methods 0.000 claims description 15
- 239000008234 soft water Substances 0.000 claims description 10
- 239000008236 heating water Substances 0.000 claims description 9
- 229910004682 ON-OFF Inorganic materials 0.000 claims description 7
- 230000001502 supplementation Effects 0.000 claims description 7
- 230000005494 condensation Effects 0.000 claims description 6
- 238000009833 condensation Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 abstract description 3
- 238000003287 bathing Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 abstract description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- 239000003245 coal Substances 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 230000003020 moisturizing Effects 0.000 description 1
Abstract
The utility model belongs to the technical field of coal mine air compressor waste heat recovery, in particular to an air compressor waste heat recovery system, which comprises an air compressor, an air compressor cooler, a heat exchange device, a heat energy recovery control pump set, a heat storage water pool, a variable-frequency constant-pressure water supply unit, a condensing tower, a circulating cooling water pump and a water replenishing device; the air compressor, the air compressor cooler, the heat exchange device and the heat energy recovery control pump set are connected in a certain mode to form a waste heat recovery system; the heat exchange device, the heat storage water tank and the variable-frequency constant-pressure water supply unit are connected in a certain mode to form a waste heat utilization system. The heat recovered by the air compressor waste heat recovery and utilization system can be used for life such as bathing and heating, the electric energy utilization efficiency is improved, and the energy loss is reduced; when the waste heat recovery system is overhauled or broken down, the waste heat recovery system can be bypassed, the condensing tower is used for cooling circulating cooling water, and the safe and reliable operation of the air compressor body is ensured.
Description
Technical Field
The utility model belongs to the technical field of colliery air compressor machine waste heat recovery utilizes, concretely relates to air compressor machine waste heat recovery utilizes system.
Background
The air compressor is used as a device for compressing gas, and is widely applied as a power source in the industrial field, particularly the mining field due to the characteristics of safety, reliability and no pollution, so that the utilization efficiency of the air compressor is a key point of attention. 90% of the electrical energy consumed by the centrifugal air compressor is stored in the compressed air as heat, and theoretically the recoverable heat accounts for 80% of the motor power.
In the practical process of the traditional air compressor, in order to ensure the stable operation of the air compressor body, the heat in the compressed air needs to be exchanged by adopting a circulating cooling mode. The heat is often dissipated to the atmosphere through the condensing tower, which not only causes heat loss but also reduces the use efficiency of electric energy.
In the practical application of waste heat recovery, the change of the recovered heat quantity occurs, and the heat supply quality is influenced. When the recovery equipment breaks down or is overhauled and the like, the safe and reliable operation of the air compressor is influenced.
Disclosure of Invention
In order to overcome the shortcomings of the prior art, the utility model provides an air compressor waste heat recycling system.
The utility model discloses a realize through following technical scheme: a waste heat recycling system of an air compressor comprises the air compressor and an air compressor cooler connected with the air compressor, wherein an outlet of the air compressor cooler is connected with a hot fluid inlet of a plate heat exchanger through a first temperature control valve, a hot fluid outlet of the plate heat exchanger is connected with a first inlet of a heat energy recycling control pump set, and a first outlet of the heat energy recycling control pump set is connected with an inlet of the air compressor cooler; a cold fluid outlet of the plate heat exchanger is connected with a heat storage water tank through a second temperature control valve, and the heat storage water tank sends hot water to a living area through a variable-frequency constant-pressure water supply unit; a second outlet of the heat energy recovery control pump set is connected with an inlet of the condensation tower, an outlet of the condensation tower is connected with a second inlet of the heat energy recovery control pump set through a circulating cooling water pump, an outlet of the air compressor cooler is also connected with a second inlet of the heat energy recovery control pump set, and a second outlet of the heat energy recovery control pump set is also connected with an inlet of the air compressor cooler; and the water supplementing system is respectively connected with a cold fluid inlet of the plate heat exchanger, a third inlet of the heat energy recovery control pump set and an outlet of the condensing tower.
Furthermore, an on-off valve is connected in parallel between a hot fluid outlet of the plate heat exchanger and a cold fluid outlet of the plate heat exchanger.
Furthermore, the outlet of the variable-frequency constant-pressure water supply unit is connected with the cold fluid inlet of the plate heat exchanger through a circulating heating water pump.
Furthermore, the circulating heating water pump is connected with the on-off valve in parallel.
Further, the water charging system include the water softener, the water softener links to each other with the softened water tank, the softened water tank supplies water for plate heat exchanger, heat recovery control pump package and condensing tower through softened water moisturizing water pump.
Furthermore, a plurality of groups of plate heat exchangers are connected in parallel to form a multistage heat exchange system.
The utility model has the advantages that: the heat recovered by the air compressor waste heat recovery and utilization system can be used for life such as bathing and heating, the electric energy utilization efficiency is improved, and the energy loss is reduced; when the waste heat recovery system is overhauled or fails, the waste heat recovery system can be bypassed, the condensing tower cools the circulating cooling water, and the safe and reliable operation of the air compressor body is ensured.
Drawings
FIG. 1 is a working schematic diagram of the present invention;
in the figure, 1, an air compressor, 2, an air compressor cooler, 3, a first temperature control valve, 4, a plate heat exchanger, 5, a heat energy recovery control pump set, 6, a second temperature control valve, 7, a heat storage water tank, 8, a variable-frequency constant-pressure water supply unit, 9, a circulating heating water pump, 10, a condensing tower, 11, a circulating cooling water pump, 12, a water softener, 13, a soft water tank, 14 and a soft water replenishing water pump.
Detailed Description
The invention will be further explained below with reference to the drawings and examples.
As shown in fig. 1, an air compressor waste heat recycling system comprises an air compressor 1 and an air compressor cooler 2 connected with the air compressor 1, the air compressor 1 adopted in the application is a centrifugal air compressor, an outlet of the air compressor cooler 2 is connected with an inlet of a first temperature control valve 3, an outlet of the first temperature control valve 3 is connected with a hot fluid inlet of a plate heat exchanger 4, a hot fluid outlet of the plate heat exchanger 4 is connected with a first inlet of a heat energy recycling control pump unit 5, a first outlet of the heat energy recycling control pump unit 5 is connected with an inlet of the air compressor cooler 2, the first inlet of the heat energy recycling control pump unit 5 and the first outlet of the heat energy recycling control pump unit 5 are in a communicated structure, and the above circulation connection forms a waste heat recycling system; a cold fluid outlet of the plate heat exchanger 4 is connected with an inlet of a second temperature control valve 6, an outlet of the second temperature control valve 6 is connected with a heat storage water tank 7, the heat storage water tank 7 sends hot water to a living area through a variable-frequency constant-pressure water supply unit 8, and a waste heat utilization system is formed among the plate heat exchanger 4, the heat storage water tank 7 and the variable-frequency constant-pressure water supply unit 8; a second outlet of the heat energy recovery control pump unit 5 is connected with an inlet of the condensation tower 10, an outlet of the condensation tower 10 is connected with a second inlet of the heat energy recovery control pump unit 5 through a circulating cooling water pump 11, an outlet of the air compressor cooler 2 is also connected with a second inlet of the heat energy recovery control pump unit 5, and a second outlet of the heat energy recovery control pump unit 5 is also connected with an inlet of the air compressor cooler 2; and the water supplementing system is respectively connected with a cold fluid inlet of the plate heat exchanger 4, a third inlet of the heat energy recovery control pump set 5 and an outlet of the condensing tower 10.
When the air compressor 1 operates, the temperature of compressed air can reach 100 ℃ before entering the air compressor cooler 2, and the temperature of the compressed air is reduced to 50-60 ℃ after passing through the air compressor cooler 2. The cooling water at the outlet of the air compressor cooler 2 is replaced by heat in the cooling water through the plate type heat exchanger 4, power is provided through the heat recovery control pump set 5, the cooling water returns to the inlet of the air compressor cooler 2, the first temperature control valve 3 is installed in front of the plate type heat exchanger 4, the opening of the water temperature control valve is detected to control the flow rate of circulating cooling water, and the water temperature at the inlet of the air compressor cooler 2 is guaranteed to be 25 ℃. The plate heat exchanger 4 heats the cold water on the other side of the plate heat exchanger 4 to about 45 ℃ and sends the cold water into the heat storage water tank 7, and the variable-frequency constant-pressure water supply unit 8 supplies the hot water in the heat storage water tank 7 to a living area for use at a constant pressure. Meanwhile, the condensing tower 10 is connected with the air compressor cooler 2 in parallel, when the waste heat utilization system is in fault or overhauled, the heat of the air compressor cooling water is directly dissipated out through the condensing tower 10, and circulating water power is provided by the cooling circulating water pump 11, so that the normal use of the air compressor 1 is ensured.
As an improvement of this embodiment, an on-off valve is connected in parallel between the hot fluid outlet of the plate heat exchanger 4 and the cold fluid outlet of the plate heat exchanger 4. When the plate heat exchanger 4 fails and can not normally work, the on-off valve is opened to bypass the plate heat exchanger 4, so that cooling water circulates between the air compressor cooler 2 and the heat energy recovery control pump set 5, and heat in the circulating cooling water is dissipated by the condensing tower 10.
As a modification of this embodiment, the outlet of the variable-frequency constant-pressure water supply unit 8 is further connected with the cold fluid inlet of the plate heat exchanger 4 through a circulating heating water pump 9. Furthermore, the circulating heating water pump 9 is connected in parallel with the on-off valve, and meanwhile, in order to ensure the temperature in the heat storage water tank, circulating hot water is heated by the circulating heating water pump 9 and is sent to the inlet of the plate heat exchanger 4, and when the temperature of the heat storage water tank 7 is enough, the circulating heating water pump 9 can be closed and can be bypassed through valve control.
Further, the water supplementing system comprises a water softener 12, the water softener 12 is connected with a soft water tank 13, and the soft water tank 13 supplies water to the plate heat exchanger 4, the heat energy recovery control pump unit 5 and the condensing tower 10 through a soft water supplementing water pump 14. Municipal water is treated by the water softener 12 and then is sent into the soft water tank 13, and the treated water is sent into the cold fluid inlet of the plate heat exchanger 4, the third inlet of the heat energy recovery control pump set 5 and the outlet of the condensing tower 10 by the soft water replenishing water pump 14 to be connected, so that the normal operation of water circulation is ensured.
As an improvement of this embodiment, a plurality of groups of the plate heat exchangers 4 are connected in parallel to form a multi-stage heat exchange system. The multiple sets of plate heat exchangers 4 are used to ensure that heat can be recovered efficiently.
Claims (6)
1. The utility model provides an air compressor machine waste heat recovery utilizes system which characterized in that: the heat recovery system comprises an air compressor (1) and an air compressor cooler (2) connected with the air compressor (1), wherein an outlet of the air compressor cooler (2) is connected with a hot fluid inlet of a plate type heat exchanger (4) through a first temperature control valve (3), a hot fluid outlet of the plate type heat exchanger (4) is connected with a first inlet of a heat recovery control pump set (5), and a first outlet of the heat recovery control pump set (5) is connected with an inlet of the air compressor cooler (2); a cold fluid outlet of the plate heat exchanger (4) is connected with a heat storage water tank (7) through a second temperature control valve (6), and the heat storage water tank (7) sends hot water to a living area through a variable-frequency constant-pressure water supply unit (8); a second outlet of the heat energy recovery control pump group (5) is connected with an inlet of a condensation tower (10), an outlet of the condensation tower (10) is connected with a second inlet of the heat energy recovery control pump group (5) through a circulating cooling water pump (11), an outlet of the air compressor cooler (2) is also connected with a second inlet of the heat energy recovery control pump group (5), and a second outlet of the heat energy recovery control pump group (5) is also connected with an inlet of the air compressor cooler (2); and the water supplementing system is respectively connected with a cold fluid inlet of the plate heat exchanger (4), a third inlet of the heat energy recovery control pump set (5) and an outlet of the condensing tower (10).
2. The air compressor waste heat recycling system of claim 1, characterized in that: and an on-off valve is connected in parallel between a hot fluid outlet of the plate type heat exchanger (4) and a cold fluid outlet of the plate type heat exchanger (4).
3. The air compressor waste heat recycling system of claim 1, characterized in that: and the outlet of the variable-frequency constant-pressure water supply unit (8) is also connected with the cold fluid inlet of the plate heat exchanger (4) through a circulating heating water pump (9).
4. The air compressor waste heat recycling system of claim 3, characterized in that: the circulating heating water pump (9) is connected with the on-off valve in parallel.
5. The air compressor waste heat recycling system of claim 1, characterized in that: the water supplementing system comprises a water softener (12), wherein the water softener (12) is connected with a soft water tank (13), and the soft water tank (13) supplies water to the plate heat exchanger (4), the heat energy recovery control pump set (5) and the condensing tower (10) through a soft water supplementing water pump (14).
6. The air compressor waste heat recycling system of claim 1, characterized in that: and a plurality of groups of plate heat exchangers (4) are connected in parallel to form a multistage heat exchange system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921509951.6U CN210463579U (en) | 2019-09-11 | 2019-09-11 | Air compressor machine waste heat recovery utilizes system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921509951.6U CN210463579U (en) | 2019-09-11 | 2019-09-11 | Air compressor machine waste heat recovery utilizes system |
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| Publication Number | Publication Date |
|---|---|
| CN210463579U true CN210463579U (en) | 2020-05-05 |
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| CN201921509951.6U Active CN210463579U (en) | 2019-09-11 | 2019-09-11 | Air compressor machine waste heat recovery utilizes system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757768A (en) * | 2021-09-16 | 2021-12-07 | 中国北方发动机研究所(天津) | Box type high-temperature tail gas waste heat heating device |
| CN114017294A (en) * | 2021-10-29 | 2022-02-08 | 山东核电有限公司 | Compressed air cooling system and method for nuclear power plant instrument |
-
2019
- 2019-09-11 CN CN201921509951.6U patent/CN210463579U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113757768A (en) * | 2021-09-16 | 2021-12-07 | 中国北方发动机研究所(天津) | Box type high-temperature tail gas waste heat heating device |
| CN114017294A (en) * | 2021-10-29 | 2022-02-08 | 山东核电有限公司 | Compressed air cooling system and method for nuclear power plant instrument |
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