CN115580030A - Air compression station and control method - Google Patents
Air compression station and control method Download PDFInfo
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- CN115580030A CN115580030A CN202211565557.0A CN202211565557A CN115580030A CN 115580030 A CN115580030 A CN 115580030A CN 202211565557 A CN202211565557 A CN 202211565557A CN 115580030 A CN115580030 A CN 115580030A
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- air
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J15/00—Systems for storing electric energy
- H02J15/006—Systems for storing electric energy in the form of pneumatic energy, e.g. compressed air energy storage [CAES]
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B23/00—Pumping installations or systems
- F04B23/02—Pumping installations or systems having reservoirs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B41/00—Pumping installations or systems specially adapted for elastic fluids
- F04B41/02—Pumping installations or systems specially adapted for elastic fluids having reservoirs
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/28—Arrangements for balancing of the load in a network by storage of energy
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- General Engineering & Computer Science (AREA)
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Abstract
The invention relates to the technical field of electric energy storage, and particularly discloses an air compression station and a control method thereof. The air compression station can reduce the operation cost of the air compression station, improve the operation stability and ensure the continuous supply of compressed air.
Description
Technical Field
The invention relates to the technical field of electric energy storage, in particular to an air compression station and a control method.
Background
Compressed air is a common power source in industrial production, is widely used in various industries such as medicine, food, machinery, electronics, plastics, textile, electric power, building materials and the like, is used for operations such as spraying, stirring, conveying and the like, and almost every factory is provided with an air compression station for producing compressed air. However, the amount of electricity used for compressed air is large, and the cost of electricity charge for the air compression station is very high when peak hours of high electricity prices are encountered.
Disclosure of Invention
The present invention is directed to solving, at least in part, one of the technical problems in the related art. Therefore, the embodiment of the invention provides the air compression station, which can reduce the operation cost of the air compression station, improve the operation stability and ensure the continuous supply of compressed air.
The embodiment of the invention also provides a control method of the air compression station.
The air compression station of the embodiment of the invention comprises: a compression unit for generating a compressed gas; the gas storage unit is connected with the compression unit and is used for receiving and storing the compressed gas generated by the compression unit; the water storage unit, the one end of water storage unit with the compression unit links to each other, the other end of water storage unit with the gas storage unit links to each other.
The air compression station provided by the embodiment of the invention can reduce the operation cost of the air compression station, improve the operation stability and ensure the continuous supply of compressed air.
In some embodiments, the compression unit includes a compressor and an exhaust valve, an inlet of the compressor is communicated with the outside, an outlet of the compressor is communicated with the exhaust valve, and the exhaust valve is communicated with the gas storage unit.
In some embodiments, the number of the compressors is multiple, the number of the exhaust valves is multiple, the multiple compressors are connected in sequence, and the multiple exhaust valves are connected with the multiple compressors in a one-to-one correspondence manner.
In some embodiments, the air storage unit comprises a plurality of air storage tanks, one end of each air storage tank is communicated with the exhaust valve, the air inlet ends of the air storage tanks are correspondingly connected with the exhaust valves, and the other ends of the air storage tanks are connected with the water storage unit.
In some embodiments, the water storage unit includes a reservoir and a cooling pump, an inlet of the cooling pump is in communication with the reservoir, and another end of the cooling pump is in communication with the compressor.
In some embodiments, the compressor has a cooling channel therein, an inlet of the cooling channel being in communication with an outlet of the cooling pump, and an outlet of the cooling channel being in communication with the reservoir.
In some embodiments, the water storage unit further comprises a water injection pump, an inlet of the water injection pump is connected to the water storage tank, and an outlet of the water injection pump is communicated with the air storage tank.
In some embodiments, the air compression station further comprises an air supply unit, an inlet of the air supply unit is communicated with the compression unit and the air storage unit, and an outlet of the air supply unit is suitable for being communicated with the air using component.
In some embodiments, the air supply unit includes dry part and a plurality of voltage regulator, dry part's import respectively with the compression unit with the gas storage unit intercommunication, dry part's export with the voltage regulator intercommunication, it is a plurality of the voltage regulator links to each other in proper order.
The control method of the air compression station of the embodiment of the invention comprises the following steps: in the valley electricity period, the compression unit generates compressed gas and stores the compressed gas into the gas storage unit, the cooling pump pumps water in the water storage tank to cool the compression unit, and if gas supply is needed in the valley electricity period, compressed air is pumped from the compression unit; and in the peak electricity and/or flat electricity time period, the air storage unit supplies compressed air outwards through the air supply unit, the water injection pump injects water into the air storage tank to maintain the pressure in the air storage tank, after the air supply is completed, the water in the air storage tank is discharged, if in the peak electricity and/or flat electricity time period, the air supply of the air storage unit is used up, the air supply is still needed, the compression unit is started, and the compressed air is extracted from the compression unit.
Drawings
Fig. 1 is a schematic structural view of an air compressing station according to an embodiment of the present invention.
Reference numerals:
the compression unit 1, the compressor 11, the cooling passage 111, the discharge valve 12, the first discharge valve 121, the second discharge valve 122, the third discharge valve 123,
a gas storage unit 2, a gas storage tank 21, a first gas storage tank 211, a second gas storage tank 212, a third gas storage tank 213, an air inlet valve 22, a water outlet valve 23,
a water storage unit 3, a water storage tank 31, a cooling pump 32, a water injection pump 33, a cooling valve 34, a drain valve 35,
air supply unit 4, drying part 41, pressure regulator 42, air supply valve 43.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
As shown in fig. 1, the air compression station of the embodiment of the present invention includes a compression unit 1, a gas storage unit 2, and a water storage unit 3, where the compression unit 1 is configured to generate compressed gas, the gas storage unit 2 is connected to the compression unit 1, the gas storage unit 2 is configured to receive and store the compressed gas generated by the compression unit 1, one end of the water storage unit 3 is connected to the compression unit 1, and the other end of the water storage unit 3 is connected to the gas storage unit 2.
Specifically, as shown in fig. 1, an outlet of the compression unit 1 is communicated with an inlet of the gas storage unit 2, and an outlet of the gas storage unit 2 is communicated with the water storage unit 3.
According to the air compression station provided by the embodiment of the invention, the water storage unit 3 is arranged, so that cooling water can be supplied to the compression unit 1, the energy consumption of the compressor is reduced, the operation cost of the air compression station can be reduced, water is supplied into the air storage unit 2 through the water storage unit 3, the pressure in the air storage unit 2 is maintained, and the continuous supply of compressed air is ensured.
In some embodiments, the compression unit 1 includes a compressor 11 and a discharge valve 12, an inlet of the compressor 11 is communicated with the outside, an outlet of the compressor 11 is communicated with the discharge valve 12, and the discharge valve 12 is communicated with the gas storage unit 2.
Specifically, as shown in fig. 1, an inlet of the compressor 11 draws air from the outside and pressurizes the air, and then delivers the air to the discharge valve 12 through an outlet, and the discharge valve 12 delivers the compressed air to the air storage unit 2. By providing the discharge valve 12, the compressed air can be controlled to enter the air tank 21.
In some embodiments, the number of the compressors 11 is multiple, the number of the exhaust valves 12 is multiple, the multiple compressors 11 are connected in sequence, and the multiple exhaust valves 12 are connected with the multiple compressors 11 in a one-to-one correspondence.
Specifically, as shown in fig. 1, a plurality of compressors 11 are connected in sequence, one exhaust valve 12 is disposed between two adjacent compressors 11, and each exhaust valve 12 is connected to the gas storage unit 2. Through setting up a plurality of compressors 11, can compress the compressed gas in order to obtain higher pressure step by step to the air, through setting up a plurality of discharge valves 12, and a plurality of discharge valves 12 link to each other with gas storage unit 2 respectively, can obtain the compressed gas of different pressures to be suitable for different compressed gas service environment.
For example, the number of the compressors 11 is three, the three compressors 11 are respectively a first-stage compressor, a second-stage compressor and a third-stage compressor, the first-stage compressor, the second-stage compressor and the third-stage compressor are started step by step, that is, the first-stage compressor is started first, the second-stage compressor is started again, the third-stage compressor is started finally, the number of the exhaust valves 12 is three, and the exhaust valves are respectively a first exhaust valve 121, a second exhaust valve 122 and a third exhaust valve 123, the first exhaust valve 121 is located between the first-stage compressor and the second-stage compressor, the second exhaust valve 122 is located between the second-stage compressor and the third-stage compressor, and the third exhaust valve 123 is located behind the third-stage compressor.
In some embodiments, the air storage unit 2 includes a plurality of air storage tanks 21, one end of each air storage tank 21 is communicated with the exhaust valve 12, the air inlet ends of the plurality of air storage tanks 21 are connected with the plurality of exhaust valves 12 in a one-to-one correspondence, and the other end of each air storage tank 21 is connected with the water storage unit 3.
Specifically, as shown in fig. 1, the number of the exhaust valves 12 is the same as that of the air tanks 21, and the air tanks 21 are connected to the exhaust valves 12 in a one-to-one correspondence manner, for example, the number of the air tanks 21 is three, the three air tanks 21 are respectively a first air tank 211, a second air tank 212 and a third air tank 213, the first air tank 211 is connected to the three exhaust valves 12, the second air tank 212 is connected to the three exhaust valves 12, and the third air tank 213 is connected to the three exhaust valves 12.
The lower end of the air storage tank 21 is connected with the water storage unit 3.
Optionally, be equipped with admission valve 22 in the upper end of gas holder 21, admission valve 22's quantity is the same with the quantity of gas holder 21, and a plurality of admission valves 22 and a plurality of gas holders 21 one-to-one, and admission valve 22 links to each other with discharge valve 12, through setting up admission valve 22, can control the admitting air and the gassing of gas holder 21, improves the automated control degree at air compression station.
According to the air compression station provided by the embodiment of the invention, the plurality of air storage tanks 21 are arranged, so that the air storage capacity can be improved, the plurality of exhaust valves 12 are matched, and compressed air with different pressures can be stored, so that various use environments are met.
In some embodiments, the water storage unit 3 includes a water reservoir 31 and a cooling pump 32, an inlet of the cooling pump 32 is communicated with the water reservoir 31, and the other end of the cooling pump 32 is communicated with the compressor 11.
Specifically, as shown in fig. 1, the compressor 11 has a cooling channel 111 therein, an inlet of the cooling channel 111 is communicated with an outlet of the cooling pump 32, and an outlet of the cooling channel 111 is communicated with the water reservoir 31.
For example, when the number of the compressors 11 is three, the outlets of the cooling pumps 32 are respectively communicated with the cooling channels 111 of the three compressors 11, the outlets of the cooling channels 111 of the three compressors 11 are respectively communicated with the water reservoir 31, and the cooling water in the water reservoir 31 is conveyed into the compressors 11 through the cooling pumps 32, so that the temperature of the compressors 11 and the compressed air can be reduced, the compression efficiency can be improved, and the energy consumption of the compressors 11 can be reduced.
In some embodiments, the air compression station further includes a cooling valve 34, the cooling valve 34 is installed between an inlet of the cooling channel 111 and an outlet of the cooling pump 32, the cooling valve 34 can control opening and closing of the cooling channel 111, the number of the cooling valves 34 is the same as that of the compressors 11, the plurality of cooling valves 34 correspond to the plurality of compressors 11 one by one, and by arranging the cooling valve 34, cooling of the compressors 11 can be regulated, compression efficiency of the compressors 11 is improved, and energy consumption of the compressors 11 can be reduced.
In some embodiments, the water storage unit 3 further comprises a water injection pump 33, an inlet of the water injection pump 33 is connected to the water reservoir 31, and an outlet of the water injection pump 33 is communicated with the air tank 21.
Specifically, as shown in fig. 1, the water storage unit 3 further includes a water outlet valve 23, the water outlet valve 23 is disposed between the water injection pump 33 and the air storage tank 21, an outlet of the water injection pump 33 is communicated with an outlet of the water outlet valve 23, and an inlet of the water outlet valve 23 is communicated with the air storage tank 21.
According to the air compression station provided by the embodiment of the invention, the efficiency of conveying liquid into the air storage tank 21 can be improved by arranging the water injection pump 33, the stability of the pressure in the air storage tank 21 is ensured, the water inlet and the water discharge of the air storage tank 21 can be controlled by the water outlet valve 23, the pressure in the air storage tank 21 is adjusted, the stability of the air pressure in the air storage tank 21 is maintained, and the stability and the continuity of air supply of the air storage tank 21 are ensured.
Optionally, the water storage unit 3 further comprises a drain valve 35, an inlet of the drain valve 35 is connected to the water outlet valve 23, an outlet of the drain valve 35 is communicated with the water storage tank 31, and water in the air storage tank 21 can be discharged through the drain valve 35.
In some embodiments, the air compression station further comprises an air supply unit 4, an inlet of the air supply unit 4 is in communication with the compression unit 1 and the air storage unit 2, and an outlet of the air supply unit 4 is adapted to be in communication with the air-using component.
Specifically, as shown in fig. 1, the inlet of the gas supply unit 4 is respectively communicated with the compression unit 1 and the gas storage unit 2, that is, the compressed gas discharged from the compression unit 1 can be directly discharged through the gas supply unit 4, or the compressed gas stored in the gas storage unit 2 is discharged through the gas supply unit 4, or the compression unit 1 and the gas storage unit 2 simultaneously supply the compressed gas to the gas supply unit 4, so that the stability and the continuity of the compressed gas supply are improved.
The outlet of the air supply unit 4 may be simultaneously communicated with a plurality of air using parts.
According to the air compression station provided by the embodiment of the invention, the air supply unit 4 is arranged, so that a plurality of air using components can be connected at the same time, and the simultaneous operation of the plurality of air using components is met.
In some embodiments, the air supply unit 4 includes a drying part 41 and a plurality of pressure regulators 42, an inlet of the drying part 41 is respectively communicated with the compression unit 1 and the air storage unit 2, an outlet of the drying part 41 is communicated with the pressure regulators 42, and the plurality of pressure regulators 42 are sequentially connected.
Specifically, as shown in fig. 1, the air supply unit 4 further includes an air supply valve 43, an inlet of the air supply valve 43 is communicated with the compression unit 1 and the air storage unit 2, respectively, an outlet of the air supply valve 43 is communicated with the drying part 41, and an outlet of the drying part 41 is connected with the pressure regulator 42. For example, the drying part 41 may be a drying and purifying device for drying and purifying the compressed gas.
For example, the number of pressure regulators 42 is three, three pressure regulators 42 are connected in sequence, three pressure regulators 42 are first pressure regulator 42, second pressure regulator 42 and third pressure regulator 42 respectively, a first output pipeline is arranged between first pressure regulator 42 and second pressure regulator 42, a second output pipeline is arranged between second pressure regulator 42 and third pressure regulator 42, a third output pipeline is arranged at an outlet of third pressure regulator 42, and the pressure of the first output pipeline, the pressure of the second output pipeline and the pressure of the third output pipeline are gradually reduced.
According to the air compression station provided by the embodiment of the invention, the output pressure of the compressed gas can be adjusted by arranging the plurality of pressure regulators 42, so that the gas using requirements of various pressures are met, and the adaptability of the air compression station is improved.
The operation of the air compressing station of the embodiment of the present invention is described below with reference to fig. 1.
Taking industrial electricity as an example, the electricity price period is divided into three types of peak, peak and valley, and the following are adopted for the valley period (6-00 and 11-00) and the gas is released in the peak period (9.
(1) Storing gas during the low valley electricity period.
The cooling pump 32 is started, the first exhaust valve 121 is opened, the air inlet valve 22 is opened, the first-stage compressor works, the first compressor 11 exhausts air and charges air to the first air storage tank 211, the second air storage tank 212 and the third air storage tank 213 to 0.4MPa;
s2: opening a cooling valve 34 connected with a second-stage compressor, opening a second exhaust valve 122, closing a first exhaust valve 121, enabling the second-stage compressor to work, enabling the exhaust gas of the first-stage compressor to enter a second compressor 11, and enabling the exhaust gas of the second compressor 11 to be inflated to 1MPa to a first air storage tank 211, a second air storage tank 212 and a third air storage tank 213;
s3: opening a cooling valve 34 connected with a third-stage compressor, opening a third exhaust valve 123, closing a second exhaust valve 122, performing third-stage compression, enabling the exhaust gas of the first-stage compressor to enter a second-stage compressor, enabling the exhaust gas of the second-stage compressor to enter the third-stage compressor, and enabling the exhaust gas of the third-stage compressor to be inflated to 3MPa to a first air storage tank 211, a second air storage tank 212 and a third air storage tank 213;
s4: the intake valve 22 is closed, the third exhaust valve 123 is closed, the first-stage compressor, the second-stage compressor, and the third-stage compressor are closed, and the cooling pump 32 is closed.
S5: the air supply can be carried out in a low ebb electricity period, and the air supply can be carried out by a first-stage compressor and a second-stage compressor.
(2) And supplying gas during the peak electricity period.
S1: the air inlet valve 22 is opened, the air supply valve 43 is opened, and the first air storage tank 211, the second air storage tank 212 and the third air storage tank 213 release high-pressure compressed air;
s2: the high-pressure compressed gas treated by the drying part 41 is decompressed to 1MPa by the first pressure regulator 42, decompressed to 0.8MPa by the second pressure regulator 42, and decompressed to 0.4MPa by the third pressure regulator 42;
s3: the first pressure regulator 42 shunts and outputs 1MPa compressed air to be supplied to high-pressure compressed gas users, the second pressure regulator 42 shunts and outputs 0.8MPa compressed air to be supplied to medium-pressure compressed gas users, and the third pressure regulator 42 shunts and outputs 0.4MPa compressed air to be supplied to low-pressure compressed gas users;
s4: releasing the first air storage tank 211, the second air storage tank 212 and the third air storage tank 213 until the pressure is reduced to 1.05MPa, opening the water injection pump 33, opening the water outlet valve 23, injecting water into the first air storage tank 211, the second air storage tank 212 and the third air storage tank 213, and maintaining the pressure of the first air storage tank 211, the second air storage tank 212 and the third air storage tank 213 to be not lower than 1.05MPa until the air is released from the first air storage tank 211, the second air storage tank 212 and the third air storage tank 213;
s5: the air supply valve 43 is closed, the drain valve 35 is opened, and the first, second, and third air tanks 211, 212, and 213 are drained, and a drain valve may be provided at the top of the first, second, and third air tanks 211, 212, and 213, and may be opened during draining;
s6: the inlet valve 22 is closed, the outlet valve 23 is closed, and the drain valve 35 is closed.
S7: the peak power periods and peak power periods also require supplemental air supply, which may be provided by a first stage compressor and a second stage compressor.
The time-of-use electricity price time period of the industrial electricity with the voltage grade of 1-10kV is taken as an example to calculate the electricity charge saving amount of the air compression station.
Assuming that the gas consumption of the compressed air of 0.4MPa, 0.8MPa and 1MPa is 10000Nm in each peak period 3 The energy consumption of the conventional air compression station and the air compression station adopting the invention is as follows:
conventional air compression stations: considering that the operating condition changes frequently, the energy consumption is high, the energy consumption is respectively about 700kWh,1000 kWh and 1100kWh, and the total energy consumption is 2800kWh; the electricity fee is 1.3 yuan/kWh, and the total amount is 3640 yuan;
the air compression station of the invention comprises: the energy consumption of gas storage compression is about 3200kWh, the energy consumption of electricity is 0.35 yuan/kWh, the energy consumption of gas release and water injection is about 380kWh, and the energy consumption of electricity is 1.3 yuan/kWh; 1614 members in total;
under the conditions, compared with the conventional air compression station, the air compression station disclosed by the embodiment of the invention stores air and supplies air circularly for two times every day, so that the cost is saved by 4052 yuan/day, and the cost can be saved by 101.3 ten thousand yuan per 250 days per year. Compared with the conventional air compression station, the air compression station of the embodiment of the invention has the advantages that the investment is increased by about 450 ten thousand yuan, the static recovery period of the investment is about 4.5 years, and the economic benefit is remarkable.
The control method of the air compression station comprises the following steps: in the off-peak electricity period, the compression unit generates compressed air and stores the compressed air in the air storage unit 2, the cooling pump 32 pumps water in the water reservoir 31 to cool the compression unit 1, and if air supply is needed in the off-peak electricity period, compressed air is pumped from the compression unit 1.
During the peak power and/or flat power supply period, the air storage unit 2 supplies compressed air to the outside through the air supply unit 4, the water injection pump 33 injects water into the air storage tank 21 to maintain the pressure in the air storage tank 21, after the air supply is completed, the water in the air storage tank 21 is discharged, and if the air supply of the air storage unit 2 is used up and the air supply is still needed during the peak power and/or flat power supply period, the compression unit 1 is started, and compressed air is extracted from the compression unit 1.
It should be noted that the gas is stored during the valley electricity period. The compression unit 1 works, the exhaust valve 12 is controlled, the air storage unit 2 is inflated through the compressor 11, the air inlet valve 22 is opened, the storage tank receives compressed air, the compressor 11 is opened section by section along with the rise of pressure to output air with higher pressure until the pressure of the storage tank reaches a target value, meanwhile, the cooling pump 32 works to pump water from the lower part of the reservoir 31, the cooling water enables the compressor 11 to exhaust air to be cooled so as to reduce the power consumption of the compressor 11, and return water is discharged into the reservoir 31; after the gas storage is finished, the compressor 11 is stopped, the exhaust valve 12 is closed, the cooling water pump is stopped, and the air inlet valve 22 is closed. In the valley-power period, if there is a demand for air supply, compressed air of a suitable pressure is extracted from the discharge port of the compressor 11.
The gas is supplied during peak and/or flat periods. The air supply valve 43 is opened, the air inlet valve 22 is opened, the air storage tank 21 releases high-pressure air, the air is processed by the drying part 41 and then is reduced to a specified pressure by the pressure regulator 42, compressed air with a required pressure is provided for a user, the air storage tank 21 is continuously released, when the pressure is reduced to be close to the air supply pressure, the water injection pump 33 works, the water outlet valve 23 is opened, the water injection pump 33 injects water into the air storage tank 21 to maintain the pressure, and when the air storage tank 21 is filled with water, the air inlet valve 22 is closed; after the air supply is completed, the air supply valve 43 is closed, the air inlet valve 22 is closed, the drain valve 35 is opened, the outlet valve 23 of the air storage tank 21 filled with water is opened for draining, and after the drainage is completed, the outlet valve 23 is closed, and the drain valve 35 is closed. During peak and/or flat periods, when the air supply from the air storage unit 2 is exhausted and air supply is needed, the compression unit 1 may be activated to draw compressed air of a suitable pressure from the air outlet of the compressor 11.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, but are not intended to indicate or imply that the device or element so referred to must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be construed as limiting the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of the feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "above," and "over" a second feature may be directly on or obliquely above the second feature, or simply mean that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the present disclosure, the terms "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" and the like mean that a specific feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present disclosure. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (10)
1. An air compression station, comprising:
a compression unit for generating a compressed gas;
the gas storage unit is connected with the compression unit and is used for receiving and storing the compressed gas generated by the compression unit;
and one end of the water storage unit is connected with the compression unit, and the other end of the water storage unit is connected with the gas storage unit.
2. The air compression station as claimed in claim 1, wherein the compression unit comprises a compressor and an exhaust valve, an inlet of the compressor is communicated with the outside, an outlet of the compressor is communicated with the exhaust valve, and the exhaust valve is communicated with the air storage unit.
3. The air compression station as claimed in claim 2, wherein the number of the compressors is plural, the number of the exhaust valves is plural, the plural compressors are connected in sequence, and the plural exhaust valves are connected with the plural compressors in a one-to-one correspondence.
4. The air compression station of claim 3, wherein the air storage unit comprises a plurality of air storage tanks, one end of each air storage tank is communicated with the exhaust valve, the air inlet ends of the plurality of air storage tanks are connected with the exhaust valves in a one-to-one correspondence, and the other ends of the air storage tanks are connected with the water storage unit.
5. The air compression station of claim 4, wherein the water storage unit includes a reservoir and a cooling pump, an inlet of the cooling pump being in communication with the reservoir, and another end of the cooling pump being in communication with the compressor.
6. The air compression station of claim 5, wherein the compressor has a cooling channel therein, an inlet of the cooling channel being in communication with an outlet of the cooling pump, an outlet of the cooling channel being in communication with the reservoir.
7. The air compression station of claim 5, wherein the water storage unit further comprises a water injection pump, an inlet of the water injection pump being connected to the water storage reservoir, an outlet of the water injection pump being in communication with the air storage tank.
8. The air compression station of any one of claims 4-7, further comprising an air supply unit, an inlet of the air supply unit being in communication with the compression unit and the air storage unit, and an outlet of the air supply unit being adapted to be in communication with an air-using component.
9. The air compression station of claim 8, wherein the air supply unit includes a dry component and a plurality of pressure regulators, an inlet of the dry component is communicated with the compression unit and the air storage unit respectively, an outlet of the dry component is communicated with the pressure regulators, and the pressure regulators are connected in sequence.
10. A control method for an air compression station is characterized by comprising the following steps:
in the valley electricity period, the compression unit generates compressed gas and stores the compressed gas into the gas storage unit, the cooling pump pumps water in the water storage tank to cool the compression unit, and if gas supply is needed in the valley electricity period, compressed air is pumped from the compression unit;
and in the peak electricity and/or flat electricity time period, the air storage unit supplies compressed air outwards through the air supply unit, the water injection pump injects water into the air storage tank to maintain the pressure in the air storage tank, after the air supply is completed, the water in the air storage tank is discharged, if in the peak electricity and/or flat electricity time period, the air supply of the air storage unit is used up, the air supply is still needed, the compression unit is started, and the compressed air is extracted from the compression unit.
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