Compressed air system

Abstract

The utility model discloses a compressed air system, which belongs to the field of compressed air, supplies air simultaneously through a plurality of air bags, reduces the influence of production fluctuation on a user side, and ensures the stability of air supply. The controller controls the pressurizing water pump to supplement high-pressure water into the air bag at any time to maintain constant-pressure discharging of the high-pressure air, stable air supply pressure is achieved, and the influence on the air using side is reduced. The device mainly comprises a compressor and an air storage tank and further comprises a plurality of air bags, each air bag is connected with the compressor through a low-pressure air valve, each air bag is connected with the air storage tank through a high-pressure air valve, each air bag is connected with a pressurizing water pump and an energy storage water tank through a pressurizing water valve, and the pressurizing water pump is connected with a water supplementing tank. Each air bag is connected with a pressure relief water pump through a pressure relief water valve, and the pressure relief water pump is connected with a water supplementing tank. The utility model is mainly used for the intelligent air compression system.

Description

Technical Field

[0001] The utility model relates to the field of compressed air, and in particular to a compressed air system. Background Art

[0002] In industrial production, compressed air is often used for instrument control and equipment purging. The stability of compressed air affects the flexible operation of pneumatic equipment. The energy consumption of traditional compressed air systems accounts for a large proportion, which plays a vital role in reducing costs and increasing efficiency for enterprises.

[0003] The existing compressed air system mainly adjusts the working condition of the air compressor through the feedback of the terminal gas consumption parameters, such as a compressed air energy storage tank system and adjustment method with publication number CN110094630A. When the control system responds slowly, when the air compressor receives the adjustment signal, it takes some time to start up and increase the pressure or stop and release the pressure. For the working conditions with large instantaneous gas consumption at the terminal, the poor regulation cannot achieve stable gas supply, and even the large instantaneous gas consumption causes the compressed air pipeline network pressure to drop sharply, causing the instrument control equipment to fail, causing huge losses to production. At the same time, in order to adapt to the fluctuation of gas consumption, the frequent start and stop of the air compressor has a great impact on the power grid and is not energy-saving, resulting in large equipment losses. Summary of the invention

[0004] The purpose of the utility model is to provide a compressed air system, which supplies air through multiple air bags at the same time, reducing the impact of production fluctuations on the user side and ensuring the stability of air supply; the controller controls the pressurized water pump to add high-pressure water to the air bag at any time to maintain a constant pressure of high-pressure air outlet, thereby achieving stable air supply pressure and reducing the impact on the air user side.

[0005] The utility model is realized by the following technical solutions:

[0006] A compressed air system includes a compressor and an air storage tank, and also includes a plurality of air bags, each of which is connected to the compressor through a low-pressure air valve, each of which is connected to the air storage tank through a high-pressure air valve, each of which is connected to a pressurized water pump and an energy storage water tank through a pressurized water valve, the pressurized water pump is connected to a water replenishing tank, each of which is connected to a pressure relief water pump through a pressure relief water valve, and the pressure relief water pump is connected to the water replenishing tank.

[0007] Furthermore, the energy storage water tank is respectively connected to the water outlet valve and the return valve, a locking valve II is provided between the water outlet valve and the return valve, the water outlet valve is connected to each pressurized water valve, the energy of high-pressure water is utilized to save the power consumption of the compressor, and at the same time, high-pressure water can utilize the tiered electricity price to store energy and reduce the system operation cost.

[0008] Furthermore, a locking valve I is connected between the gas storage tank and the high-pressure gas valve.

[0009] Furthermore, the water supply tank is connected to a water source via a water supply valve.

[0010] Furthermore, a user-end valve is provided between the gas storage tank and the user end.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] 1. The airbag completes the process of air storage, pressurization and pressure-stabilized air supply to achieve compressed air energy storage. Multiple airbags operate in conjunction to ensure stable air supply pressure.

[0013] 2. The high-pressure water is pressurized through the airbag, and the high-pressure water system can be recycled to reduce the energy consumption of the system.

[0014] 3. Through the high-pressure water system, high-pressure water energy storage is achieved by utilizing tiered electricity prices to reduce operating costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural principle diagram of the utility model.

[0016] In the figure: 1. Compressor air inlet; 2. Compressor; 3. Locking valve I; 4. Low-pressure air valve; 5. Air bag; 6. High-pressure air valve; 7. Controller; 8. Air storage tank; 9. User-end valve; 10. Water supply valve; 11. Water supply tank; 12. Pressurized water pump; 13. Locking valve II; 14. Pressurized water valve; 15. Pressure relief water valve; 16. Return valve; 17. Pressure relief water pump; 18. Energy storage tank; 19. Outlet valve. DETAILED DESCRIPTION

[0017] The utility model is further described below in conjunction with the accompanying drawings.

[0018] like Figure 1 As shown, in embodiment 1, a compressed air system includes a compressor 2 and an air storage tank 8, the compressor 2 takes in air through the compressor air inlet 1, and also includes a plurality of air bags 5, each of which is connected to the compressor 2 through a low-pressure air valve 4, each of which is connected to the air storage tank 8 through a high-pressure air valve 6, each of which is connected to a pressurized water pump 12 and an energy storage water tank 18 through a pressurized water valve 14, the pressurized water pump 12 is connected to a water replenishment tank 11, each of which is connected to a pressure relief water pump 17 through a pressure relief water valve 15, and the pressure relief water pump 17 is connected to the water replenishment tank 1 1. The compressor 2, each water tank, each valve and each water pump are all controlled by the controller 7. A plurality of air bags 5 are provided, which can be switched to operate at a constant pressure, or multiple air bags 5 can supply air at the same time, thereby reducing the impact of production fluctuations on the user side and ensuring the stability of air supply. When high-pressure gas is produced in the air bag 5, the gas volume decreases, and the controller 7 controls the pressurized water pump 12 to replenish high-pressure water in the air bag 5 at any time to maintain the constant pressure of high-pressure gas outlet, thereby achieving stable gas supply pressure and reducing the impact on the gas user side. The low-pressure gas in the air bag 5 is pressurized by high-pressure water, thereby reducing the power consumption of the compressor 2.

[0019] Embodiment 2, a compressed air system, wherein three air bags 5 are arranged, and an energy storage water tank 18 is respectively connected to a water outlet valve 19 and a return valve 16, and a locking valve II 13 is arranged between the water outlet valve 19 and the return valve 16, and the water outlet valve 19 is connected to each pressurized water valve 14. If high-pressure water is discharged from the first air bag 5 and is used as pressurized water to fill the remaining air bags 5, the energy of the high-pressure water is used to save the power consumption of the compressor. At the same time, the high-pressure water can utilize the stepped electricity price to store energy and reduce the system operation cost; a locking valve I3 is also connected between the gas storage tank 8 and each high-pressure gas valve 6; the water supply tank 11 is connected to the water source through the water supply valve 10, and the pressurized water can be industrial water or other non-toxic and non-corrosive liquids; a user-end valve 9 is arranged between the gas storage tank 8 and the user end, and the rest is the same as Embodiment 1.

[0020] The airbag 5 contains a part of compressed air and another part of high-pressure water. The working process of the airbag 5 includes: the first step: the airbag pressure relief water valve 15 is opened, the pressure in the airbag 5 is reduced to the set value, the airbag low-pressure air valve 4 is opened to supplement the low-pressure air, and the low-pressure air valve 4 is closed after the air supplement is completed; the second step: the airbag pressurized water valve 14 is opened, the pressure in the airbag 5 is increased to the set value and maintained; the third step: the airbag high-pressure air valve 6 is opened, the airbag 5 is stably exhausted, and high-pressure water is continuously injected to maintain the exhaust pressure.

[0021] The low-pressure gas of the compressor 2 enters the airbag 5 through the low-pressure gas valve 4, and the airbag 5 is pressurized by the pressure water pump 12. The pressurized high-pressure gas opens the high-pressure gas valve 6 and enters the gas storage tank 8 after passing through the locking valve I3. The pressure water pump 12 is connected to the water supply tank 11. The water pressurized by the pressure water pump 12 enters the airbag 5 after passing through the pressure water valve 14 and the locking valve II 13. The airbag 5 is squeezed by high-pressure water to pressurize the low-pressure gas. The compression heat generated during the pressurization process is transferred to the high-pressure water through the airbag 5, and the heat is taken out of the airbag 5 during the pressure relief process of the high-pressure water. The outlet valve 19, the return valve 16 and the pressure water valve 14 are connected to the energy storage water tank 18 through a pressure water pipeline, and high-pressure water energy storage can be realized by using the ladder electricity price. The airbag 5 uses the energy of high-pressure water to save the power consumption of the compressor. At the same time, the high-pressure water can use the ladder electricity price to store energy to reduce the system operation cost; the exhaust pressure of the compressor 2 is reduced, the efficiency is improved, the operating power is reduced, and energy-saving operation is achieved.

Claims

1. A compressed air system, comprising a compressor (2) and an air storage tank (8), characterized in that: The invention also comprises a plurality of air bags (5), each of which is connected to the compressor (2) via a low-pressure air valve (4), each of which is connected to the air storage tank (8) via a high-pressure air valve (6), each of which is connected to a pressurized water pump (12) and an energy storage water tank (18) via a pressurized water valve (14), the pressurized water pump (12) is connected to a water replenishment tank (11), each of which is connected to a pressure relief water pump (17) via a pressure relief water valve (15), and the pressure relief water pump (17) is connected to the water replenishment tank (11).

2. The compressed air system according to claim 1, characterized in that: The energy storage water tank (18) is respectively connected to the water outlet valve (19) and the water return valve (16), a locking valve II (13) is arranged between the water outlet valve (19) and the water return valve (16), and the water outlet valve (19) is connected to each pressurized water valve (14).

3. The compressed air system according to claim 1, characterized in that: A locking valve I (3) is also connected between the gas storage tank (8) and the high-pressure gas valve (6).

4. The compressed air system according to claim 1, characterized in that: The water supply tank (11) is connected to a water source via a water supply valve (10).

5. The compressed air system according to claim 1, characterized in that: A user-end valve (9) is provided between the gas storage tank (8) and the user end.

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