CN112856232A - Compression and water removal integrated compressed air supply system and method - Google Patents
Compression and water removal integrated compressed air supply system and method Download PDFInfo
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- CN112856232A CN112856232A CN202110267895.5A CN202110267895A CN112856232A CN 112856232 A CN112856232 A CN 112856232A CN 202110267895 A CN202110267895 A CN 202110267895A CN 112856232 A CN112856232 A CN 112856232A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 46
- 238000000034 method Methods 0.000 title claims abstract description 22
- 230000006835 compression Effects 0.000 title claims abstract description 20
- 238000007906 compression Methods 0.000 title claims abstract description 20
- 238000007605 air drying Methods 0.000 claims abstract description 120
- 230000008929 regeneration Effects 0.000 claims abstract description 90
- 238000011069 regeneration method Methods 0.000 claims abstract description 90
- 238000003860 storage Methods 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 15
- 239000002245 particle Substances 0.000 claims abstract description 10
- 230000008569 process Effects 0.000 claims abstract description 10
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 230000003584 silencer Effects 0.000 claims abstract description 8
- 238000010438 heat treatment Methods 0.000 claims abstract description 7
- 238000001035 drying Methods 0.000 claims description 10
- 239000007788 liquid Substances 0.000 claims description 9
- 238000001914 filtration Methods 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 3
- 239000002699 waste material Substances 0.000 abstract description 5
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 230000009467 reduction Effects 0.000 abstract description 2
- 238000002360 preparation method Methods 0.000 abstract 1
- 230000000694 effects Effects 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010981 drying operation Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/26—Drying gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
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Abstract
The invention discloses a compressed air supply system integrating compression and water removal and a method thereof, wherein the system comprises an air compressor air inlet filter screen (1), an air compressor (2), a gas heat exchanger (3), an air cooler (4), an intermediate buffer tank (5), a compressed air oil filter (6), a compressed air particle filter (7), a compressed air drying tower set (9) and a compressed air storage tank (11), a state switching valve set (8), a silencer (10) and a controller which are sequentially connected; the air compressor air inlet filter screen (1) is arranged at an air suction port of the air compressor (2). The invention can realize the graded utilization of energy, can reduce the unnecessary heat waste in the preparation process of the compressed air for the instrument, reduce the cooling load requirement of the air compressor, avoid the heating energy consumption requirement in the regeneration process of the compressed air drying tower, improve the production economy and make contribution to energy saving and consumption reduction.
Description
Technical Field
The invention relates to the technical field of compressed air supply, in particular to a compressed air supply system and method integrating compression and water removal.
Background
In industrial production sites, particularly in the process of power production, in order to control and regulate working media such as water, steam and the like, electric valves, oil valves and pneumatic valves can be generally used. The electric valve cannot meet the requirements of precision and speed in the adjusting process; the oil supply system of the oil valve is complex and cannot be used in a large range; the valve using compressed air as driving force can meet the requirement of quick and accurate control by adjusting the amount of compressed air entering the cylinder through the servo valve. The air source of the pneumatic valve is from a compressed air supply system, and a servo mechanism of the pneumatic valve is a precise part, so that a compressed air supply device which can provide enough pressure and qualified cleanliness is needed.
The water vapor in the humid air can condense into water when being compressed, resulting in the pneumatic valve can't normally work, consequently the air need remove the water to the air after the compression after the air is compressed. Taking the current compressed air supply system for power production as an example, the compression and the dehydration of air in the current compressed air supply system are two unrelated processing procedures, the air is boosted to 0.6MPa by a general air compressor, the exhaust temperature of the compressor can reach more than 230 ℃, and cooling measures are required; a general air drying device adopts a reproducible double-tower dryer, one tower is in a working state and the other tower is in a reproduction state during normal operation, and part of compressed air at the outlet of the working tower is heated and then led to the reproduction tower, so that the reproduction efficiency can be effectively improved, but extra electric energy is consumed for heating the reproduction tower.
For example, patent with application number CN202010853054.8 discloses a high-temperature compressed air cooling and purifying system and a using method thereof, the system in the technical scheme comprises a primary cooling device, an air storage tank and a secondary cooling and filtering device, an air outlet of the primary cooling device is connected with the air storage tank, and an air outlet of the air storage tank is connected with the secondary cooling and filtering device; the one-level cooling device comprises a heat exchanger, a water cooling tower, a water storage tank and a pipeline pump, wherein the air inlet of the heat exchanger is connected with high-temperature compressed gas, the water outlet of the heat exchanger is connected with the water inlet of the water cooling tower, the water outlet of the water cooling tower is connected with the water inlet of the water storage tank, the water outlet of the water storage tank is connected with a pipeline pump water pumping port, the water outlet of the pipeline pump is connected with the heat exchanger, the water storage tank is further. Although the system can greatly reduce the temperature of the compressed air and automatically discharge the moisture in the compressed air, the regeneration efficiency cannot be improved, the electric energy consumption is high, and the economic cost is high.
Therefore, a compressed air supply system integrating compression and water removal is needed, unnecessary heat waste in the production process is reduced, the cooling load requirement of an air compressor is reduced, the heating energy consumption requirement in the regeneration process of a compressed air drying tower is eliminated, the production economy is improved, and the contribution is made to energy conservation and consumption reduction.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a compressed air supply system and a compressed air supply method integrating compression and water removal, which fully and reasonably utilize the heat generated by an air compressor, realize graded utilization of energy and reduce unnecessary heat waste.
The purpose of the invention is realized by the following technical scheme:
a compressed air supply system integrating compression and water removal comprises an air compressor, an air inlet filter screen of the air compressor, a gas heat exchanger, an air cooler, a compressed air oil filter, a compressed air particle filter, a compressed air drying tower set, an intermediate buffer tank, a compressed air storage tank, a state switching valve set, a silencer and a controller; the air compressor air inlet filter screen, the air compressor, the gas heat exchanger, the air cooler, the intermediate buffer tank, the compressed air oil filter, the compressed air particle filter, the compressed air drying tower set and the compressed air storage tank are sequentially connected; the air inlet filter screen of the air compressor is arranged at an air suction port of the air compressor; the state switching valve group comprises a first air inlet valve, a second air inlet valve, a first air generating valve, a second air generating valve, a first regeneration air inlet valve, a second regeneration air inlet valve, a first regeneration exhaust valve, a second regeneration exhaust valve and a throttling pore plate; the compressed air drying tower group comprises a first compressed air drying tower and a second compressed air drying tower; and throttle orifice plates are respectively arranged in two pipelines between the first compressed air drying tower and the first regeneration exhaust valve and between the second compressed air drying tower and the second regeneration exhaust valve.
Specifically, a state switching valve group is arranged on both the inlet side and the outlet side of the compressed air drying tower group; the silencer is respectively connected with a first regeneration exhaust valve and a second regeneration exhaust valve in a state switching valve group positioned at the inlet side of the compressed air drying tower group; the inlet of the gas heat exchanger is connected with the first gas generating valve, and the outlet of the gas heat exchanger is connected with the second gas generating valve.
Specifically, the inlet side and the outlet side of the compressed air drying tower set are both provided with a compressed air dew point meter, namely the inlet side and the outlet side of the first compressed air drying tower and the second compressed air drying tower are respectively provided with a compressed air dew point meter for monitoring the water content of air; the controller is respectively and electrically connected with the compressed air dew point instrument and the state switching valve group.
Specifically, a bottom drain valve, a liquid level meter and a humidity sensor are respectively arranged in the middle buffer tank; the controller is respectively electrically connected with the bottom drain valve, the liquid level meter and the sensor device.
Specifically, all valves in the state switching valve group are automatic valves; the automatic valve is a pneumatic automatic valve or an electric automatic valve.
An air supply method for a compressed air supply system, the method comprising the steps of:
s11, the first compressed air drying tower operates normally, the second compressed air drying tower is standby, air is filtered by an air inlet filter screen of an air compressor, the air compressor compresses the air pressure to the pressure required by the system, the compressed air flows through a gas heat exchanger and an air cooler in sequence to be cooled, and finally the air is sent to an intermediate buffer tank;
s12, when the controller collects that the water storage amount in the middle buffer tank reaches a preset water drainage threshold value through the liquid level meter, the controller controls the bottom drain valve to open and drain the water storage in the middle buffer tank;
s13, filtering the gas in the middle buffer tank through a compressed air oil filter and a compressed air particle filter, switching and conveying the filtered air to a first compressed air drying tower through a first air inlet valve for drying, and conveying the dried compressed air to a compressed air storage tank for storage through a first air generating valve;
and S14, the compressed air dew point monitor acquires the gas production operation data of the first compressed air drying tower in real time and uploads the gas production operation data to the controller, the controller analyzes and judges the operation data of the first compressed air drying tower according to a preset regeneration standard, and the working mode of the second compressed air drying tower is set according to a judgment result.
The method further comprises a regeneration process of the first compressed air drying tower, the process comprising the sub-steps of:
s21, the controller monitors the air humidity in the air dew points at the inlet and the outlet of the first compressed air drying tower in real time, adjusts the regeneration period of the second compressed air drying tower according to the air humidity, if the regeneration period adjustment is needed, the step S22 is executed, otherwise, the first compressed air drying tower is kept running;
s22, the controller sends a command of switching the compressed air drying tower to the state switching valve groups on the inlet side and the outlet side of the compressed air drying tower group respectively, controls a second air inlet valve and a second air generating valve of a second compressed air drying tower to be opened, and closes a first air inlet valve and a first air generating valve;
s23, the controller sends a first compressed air drying tower regeneration command to the state switching valve groups on the inlet side and the outlet side of the compressed air drying tower group respectively, and controls the first regeneration air inlet valve and the first regeneration exhaust valve to be opened;
s24, heating part of the produced gas of the second compressed air drying tower by a gas heat exchanger, passing through a first regeneration air inlet valve, a first compressed air drying tower and a first regeneration exhaust valve in sequence, and finally discharging the gas by a silencer;
s25, the compressed air dew point monitors at the inlet side and the outlet side of the second compressed air drying tower upload the regeneration data of the second compressed air drying tower to the controller, the controller sets the working mode of the second compressed air drying tower according to the regeneration data, and the second compressed air drying tower is restored to the standby mode when the regeneration requirement is met;
and S26, when the regeneration is finished and the second compressed air drying tower is recovered for standby, the controller sends a command of completing the regeneration of the first compressed air drying tower to the state switching valve groups at the inlet side and the outlet side of the compressed air drying tower group respectively, and controls the first regeneration air inlet valve and the first regeneration exhaust valve to be closed.
The invention has the beneficial effects that:
1. when the compressed air drying tower needs to be regenerated, the heat required by the regenerated compressed air drying tower (the second compressed air drying tower) is provided by the exhaust of the compressor, so that the high-grade energy required by heating the regenerated air in the regeneration process of the drying tower is greatly reduced, the cold load required by the exhaust and cooling of the air compressor is reduced, the heat is used in a grading manner, the energy optimal utilization effect is improved, and the high-grade energy waste is reduced.
2. The regeneration air heated by the exhaust of the compressor has high temperature, stronger moisture absorption effect and excellent regeneration effect, saves the consumption of the compressed air for regeneration, and further saves energy and reduces consumption.
3. When the regeneration of the compressed air drying tower in the regeneration state is qualified and the working compressed air drying tower does not reach the regeneration standard, the controller stops the regeneration of the regenerated compressed air drying tower, and the function of reducing the waste of the compressed air is realized.
4. When the compressed air drying tower is in a standby state, if the consumption of the compressed air is increased, the controller can put the standby compressed air drying tower into a drying operation condition, and the pressure stability of the air supply system is ensured.
5. When the amount of the compressed air is not matched with the amount of the supplied air of the compressor, the intermediate buffer tank can buffer the pressure of the compressed air and maintain the pressure of the system to be stable.
Drawings
FIG. 1 is a schematic diagram of the system architecture of the present invention.
The system comprises an air compressor, a gas inlet filter screen, an air compressor, a gas heat exchanger, a 4-air cooler, a middle buffer tank, a 6-compressed air oil filter, a 7-compressed air particle filter, an 8-state switching valve bank, a 9-compressed air drying tower bank, a 10-silencer and a 11-compressed air storage tank, wherein the air compressor is connected with the gas inlet filter screen through a pipeline;
the state switching valve group comprises 8-1-first air inlet valve, 8-2-second air inlet valve, 8-3-first air generating valve, 8-4-second air generating valve, 8-5-first regeneration exhaust valve, 8-6-second regeneration exhaust valve, 8-7-first regeneration air inlet valve, 8-8-second regeneration air inlet valve, 9-1-first compressed air drying tower and 9-2-second compressed air drying tower.
Detailed Description
In order to more clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will now be described with reference to the accompanying drawings.
In this embodiment, as shown in fig. 1, a compressed air supply system integrating compression and water removal includes an air compressor intake filter 1, an air compressor 2, a gas heat exchanger 3, an air cooler 4, an intermediate buffer tank 5, a compressed air oil filter 6, a compressed air particulate filter 7, a state switching valve group 8, a compressed air drying tower group 9, a muffler 10, and a compressed air storage tank 11. The air compressor comprises an air inlet filter screen 1, an air compressor 2, a gas heat exchanger 3, an air cooler 4, an intermediate buffer tank 5, a compressed air oil filter 6, a compressed air particle filter 7, a compressed air drying tower set 9 and a compressed air storage tank 11 which are connected in sequence.
The state switching valve group 8 comprises a first air inlet valve 8-1, a second air inlet valve 8-2, a first air generating valve 8-3, a second air generating valve 8-4, a first regeneration air inlet valve 8-7, a second regeneration air inlet valve 8-8, a first regeneration exhaust valve 8-5, a second regeneration exhaust valve 8-6 and a throttle orifice; the compressed air drying tower set 9 comprises a first compressed air drying tower 9-1 and a second compressed air drying tower 9-2; throttle orifice plates are respectively arranged in two pipelines between the first compressed air drying tower 9-1 and the first regeneration exhaust valve 8-5 and between the second compressed air drying tower 9-2 and the second regeneration exhaust valve 8-6.
The inlet side and the outlet side of the compressed air drying tower group 9 are both provided with a state switching valve group 8; wherein, the muffler 10 is respectively connected with a first regeneration exhaust valve 8-5 and a second regeneration exhaust valve 8-6 in a state switching valve group 8 positioned at the inlet side of the compressed air drying tower group 9; the inlet of the gas heat exchanger 3 is connected with a first gas generating valve 8-3, and the outlet of the gas heat exchanger 3 is connected with a second gas generating valve 8-4.
The inlet side and the outlet side of the compressed air drying tower set 9 are both provided with a compressed air dew point instrument; the controller is respectively and electrically connected with the compressed air dew point instrument and the state switching valve group 8.
A bottom drain valve, a liquid level meter and a humidity sensor are respectively arranged in the middle buffer tank 5; the controller is respectively electrically connected with the bottom drain valve, the liquid level meter and the sensor device.
All valves in the state switching valve group 8 are automatic valves; the automatic valve is a pneumatic automatic valve or an electric automatic valve.
In the invention, a compressed air supply system integrating compression and water removal comprises the following steps (taking a first compressed air drying tower 9-1 as an example, and a second compressed air drying tower 9-2 as an example for standby):
s11, after air is filtered by an air inlet filter screen 1 of an air compressor, the air pressure is compressed to the required pressure by the air compressor 2, the compressed air flows through a gas heat exchanger 3 and an air cooler 4 in sequence for cooling, and finally the air is sent to an intermediate buffer tank 5;
s12, when the controller collects that the water storage amount in the middle buffer tank 5 reaches a preset water drainage threshold value through the liquid level meter, the controller controls the bottom drain valve to open to drain the water storage amount in the middle buffer tank, and the working strength of the compressed air drying tower is reduced;
s13, filtering the gas in the middle buffer tank 5 through a compressed air oil filter 6 and a compressed air particle filter 7, switching and conveying the filtered air to a first compressed air drying tower 9-1 for drying through a first air inlet valve 8-1 in a state switching valve group 8, and conveying the dried compressed air to a compressed air storage tank 11 for storage through a first air generating valve 8-3 in the state switching valve group 8;
and S14, the compressed air dew point monitor acquires the operation data of the first compressed air drying tower 9-1 in real time and uploads the operation data to the controller, the controller judges whether the drying tower is invalid or not according to the operation data of the first compressed air drying tower 9-1, if the drying tower is judged to be invalid, the regeneration mode is started, and if the drying tower is judged to be invalid, the current mode is kept to operate.
The invention relates to a compressed air supply system integrating compression and water removal, after the system enters a regeneration mode, the regeneration process of a first compressed air drying tower 9-1 comprises the following steps (taking the first compressed air drying tower 9-1 as an example that the operation fails, and a second compressed air drying tower 9-2 is standby):
s21, the compressed air dew point monitor acquires the operation data of the first compressed air drying tower 9-1 in real time and uploads the operation data to the controller, the controller judges whether the drying tower is invalid or not according to the operation data of the first compressed air drying tower 9-1, if the drying tower is judged to be invalid, the step S22 is carried out, and if the drying tower is not invalid, the first compressed air drying tower 9-1 is kept to operate;
s22, the controller sends a standby operation command of the second compressed air drying tower 9-2 to the state switching valve group 8, and controls the second air inlet valve 8-2 and the second air generating valve 8-4 to be opened;
s23, the controller sends a regeneration switching instruction of the first compressed air drying tower 9-1 to the state switching valve group 8, controls the first air inlet valve 8-1 and the first air generating valve 8-3 to be closed, and controls the first regeneration air inlet valve 8-7 and the first regeneration exhaust valve 8-5 to be opened;
s24, heating a small part of the produced gas of the second compressed air drying tower 9-2 by a gas heat exchanger 3, then entering the first compressed air drying tower 9-1 through a first regeneration air inlet valve 8-7, and finally discharging the gas through a first regeneration exhaust valve 8-5 and a silencer 10;
s25, the compressed air dew point monitors at the inlet side and the outlet side of the second compressed air drying tower 9-2 upload the regeneration data of the second compressed air drying tower 9-2 to the controller, the controller sets the working mode of the second compressed air drying tower 9-2 according to the regeneration data, and the second compressed air drying tower 9-2 is recovered to be in a standby mode when the preset regeneration requirement is met;
and S26, when the regeneration is finished and the second compressed air drying tower 9-2 is recovered for standby, the controller sends a regeneration completion instruction for putting the first compressed air drying tower 9-1 into the state switching valve group 8 at the inlet side and the outlet side of the compressed air drying tower group 9 respectively, and controls the first regeneration air inlet valve 8-7 and the first regeneration exhaust valve 8-5 to be closed.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (9)
1. A compressed air supply system integrating compression and water removal is characterized by comprising an air compressor (2), an air inlet filter screen (1) of the air compressor, a gas heat exchanger (3), an air cooler (4), a compressed air oil filter (6), a compressed air particle filter (7), a compressed air drying tower set (9), a middle buffer tank (5), a compressed air storage tank (11), a state switching valve set (8), a silencer (10) and a controller; the air compressor comprises an air inlet filter screen (1), an air compressor (2), a gas heat exchanger (3), an air cooler (4), an intermediate buffer tank (5), a compressed air oil filter (6), a compressed air particle filter (7), a compressed air drying tower set (9) and a compressed air storage tank (11) which are connected in sequence; the air inlet filter screen (1) of the air compressor is arranged at an air suction port of the air compressor (2); the state switching valve group (8) comprises a first air inlet valve (8-1), a second air inlet valve (8-2), a first air generating valve (8-3), a second air generating valve (8-4), a first regeneration air inlet valve (8-7), a second regeneration air inlet valve (8-8), a first regeneration exhaust valve (8-5), a second regeneration exhaust valve (8-6) and a throttling orifice plate; the compressed air drying tower group (9) comprises a first compressed air drying tower (9-1) and a second compressed air drying tower (9-2); throttle orifice plates are respectively arranged in two pipelines between the first compressed air drying tower (9-1) and the first regeneration exhaust valve (8-5) and between the second compressed air drying tower (9-2) and the second regeneration exhaust valve (8-6).
2. The compressed air supply system integrating compression and water removal as claimed in claim 1, wherein a first air intake valve (8-1) and a first regeneration exhaust valve (8-5) are arranged at the inlet of the first compressed air drying tower (9-1), and a first air generation valve (8-3) and a first regeneration intake valve (8-7) are arranged at the outlet of the first compressed air drying tower (9-1).
3. The compressed air supply system integrating compression and water removal as claimed in claim 1, wherein a second air inlet valve (8-2) and a second regeneration exhaust valve (8-6) are arranged at the inlet of the second compressed air drying tower (9-2), and a second air generation valve (8-4) and a second regeneration air inlet valve (8-8) are arranged at the outlet of the second compressed air drying tower (9-2).
4. The integrated compressed air supply system integrating compression and water removal as claimed in claim 1, wherein said silencer (10) is connected with a first regeneration exhaust valve (8-5) and a second regeneration exhaust valve (8-6), respectively; the inlet of the gas heat exchanger (3) is connected with the first gas generating valve (8-3), and the outlet of the gas heat exchanger (3) is connected with the second gas generating valve (8-4).
5. The compressed air supply system integrating compression and water removal as claimed in claim 1, wherein the compressed air dew point hygrometers are arranged on both the inlet side and the outlet side of the compressed air drying tower set (9); the controller is respectively and electrically connected with the compressed air dew point instrument and the state switching valve group (8).
6. The compressed air supply system integrating compression and water removal as claimed in claim 1, wherein a bottom drain valve, a liquid level meter and a humidity sensor are respectively arranged in the intermediate buffer tank (5); the controller is respectively electrically connected with the bottom drain valve, the liquid level meter and the sensor device.
7. The compressed air supply system integrating compression and water removal as claimed in claim 1, wherein all valves in the state switching valve set (8) are automatic valves; the automatic valve is a pneumatic automatic valve or an electric automatic valve.
8. An air supply method using the compressed air supply system according to any one of claims 1 to 7, comprising the steps of:
s11, the first compressed air drying tower (9-1) is used for normal operation, the second compressed air drying tower (9-2) is used for standby, air is filtered by an air inlet filter screen (1) of an air compressor, the air pressure is compressed to the pressure required by the system through the air compressor (2), the compressed air sequentially flows through a gas heat exchanger (3) and an air cooler (4) for cooling, and finally the compressed air is sent to an intermediate buffer tank (5);
s12, when the controller collects that the water storage amount in the middle buffer tank (5) reaches a preset water discharge threshold value through the liquid level meter, the controller controls the bottom drain valve to open to discharge the water storage in the middle buffer tank;
s13, filtering the gas in the intermediate buffer tank (5) through a compressed air oil filter (6) and a compressed air particle filter (7), switching and conveying the filtered air to a first compressed air drying tower (9-1) through a first air inlet valve (8-1) for drying, and conveying the dried compressed air to a compressed air storage tank (11) through a first air generating valve (8-3) for storage;
and S14, the compressed air dew point monitor acquires the gas production operation data of the first compressed air drying tower (9-1) in real time and uploads the gas production operation data to the controller, the controller analyzes and judges the operation data of the first compressed air drying tower (9-1) according to a preset regeneration standard, and the working mode of the second compressed air drying tower (9-2) is set according to a judgment result.
9. A method for supplying compressed air with integrated compression and water removal as claimed in claim 8, characterized by further comprising a regeneration process of the first compressed air drying tower (9-1), which process comprises the following sub-steps:
s21, the controller monitors the air humidity in the air dew points at the inlet and the outlet of the first compressed air drying tower (9-1) in real time, adjusts the regeneration period of the second compressed air drying tower (9-2) according to the air humidity, if the regeneration period adjustment is needed, the step S22 is carried out, otherwise, the first compressed air drying tower (9-1) is kept running;
s22, the controller sends a command of switching the operation of the compressed air drying tower to the state switching valve group (8) at the inlet side and the outlet side of the compressed air drying tower group (9), controls a second air inlet valve (8-2) and a second air generating valve (8-4) of the second compressed air drying tower to be opened, and closes a first air inlet valve (8-1) and a first air generating valve (8-3);
s23, the controller sends a regeneration command of throwing the first compressed air drying tower (9-1) to the state switching valve group (8) at the inlet side and the outlet side of the compressed air drying tower group (9) respectively, and controls the first regeneration air inlet valve (8-7) and the first regeneration exhaust valve (8-5) to be opened;
s24, heating part of the produced gas of the second compressed air drying tower (9-2) by a gas heat exchanger (3), passing through a first regeneration air inlet valve (8-7), a first compressed air drying tower (9-1) and a first regeneration exhaust valve (8-5) in sequence, and finally discharging the gas by a silencer (10);
s25, the compressed air dew point monitors at the inlet side and the outlet side of the second compressed air drying tower (9-2) upload the regeneration data of the second compressed air drying tower (9-2) to the controller, the controller sets the working mode of the second compressed air drying tower (9-2) according to the regeneration data, and the second compressed air drying tower (9-2) is recovered to be in a standby mode when the regeneration requirement is met;
and S26, when the regeneration is finished and the second compressed air drying tower (9-2) is recovered for standby, the controller sends a regeneration completion instruction for putting the first compressed air drying tower (9-1) into the state switching valve group (8) at the inlet side and the outlet side of the compressed air drying tower group (9) respectively, and controls the first regeneration air inlet valve (8-7) and the first regeneration exhaust valve (8-5) to be closed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110267895.5A CN112856232A (en) | 2021-03-11 | 2021-03-11 | Compression and water removal integrated compressed air supply system and method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110267895.5A CN112856232A (en) | 2021-03-11 | 2021-03-11 | Compression and water removal integrated compressed air supply system and method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114036621A (en) * | 2021-11-22 | 2022-02-11 | 中国电力工程顾问集团西南电力设计院有限公司 | Multi-unit whole-plant network control compressed air system and design method |
| CN114100325A (en) * | 2021-11-26 | 2022-03-01 | 华能重庆两江燃机发电有限责任公司 | Cooling air drying and dehumidifying system for turbine rotor of gas turbine |
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2021
- 2021-03-11 CN CN202110267895.5A patent/CN112856232A/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114036621A (en) * | 2021-11-22 | 2022-02-11 | 中国电力工程顾问集团西南电力设计院有限公司 | Multi-unit whole-plant network control compressed air system and design method |
| CN114100325A (en) * | 2021-11-26 | 2022-03-01 | 华能重庆两江燃机发电有限责任公司 | Cooling air drying and dehumidifying system for turbine rotor of gas turbine |
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