Anti-jamming system of wet vacuum pump

Abstract

The utility model relates to the technical field of wet vacuum pumps, and provides a wet vacuum pump anti-jamming system which comprises a circulating water pool, a sealing water pool and a vacuum pump which are sequentially communicated, the vacuum pump is connected with a washing branch, the washing branch is provided with a main water tank, and the water outlet end of the main water tank is communicated with the vacuum pump through a pipeline and a self-priming pump. The water inlet end of the main water tank and the water inlet end of the sealed water tank are both communicated with the circulating water tank, the main water tank is communicated with an auxiliary water tank used for containing acid liquid, a flushing branch is formed through the arrangement of the main water tank and the auxiliary water tank, the mode that weak acid liquid flushing softening is conducted firstly and then clear water flushing is conducted is adopted, the flushing cost is saved, and descaling operation under the non-stop condition is achieved; and the risk that the vacuum pump is jammed is reduced, the operation safety and the working efficiency are improved, and the service life of equipment is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to wet vacuum pump technical field, specifically, relate to a wet vacuum pump anti jamming system. BACKGROUND

[0002] The variable pressure adsorption oxygen system extracts oxygen from air by variable pressure adsorption principle, wherein the Roots vacuum pump and the sealing water play a key role. The Roots vacuum pump is responsible for pumping away nitrogen and water in the molecular sieve; and the sealing water is used for sealing the clearance between the impeller and the device cooling.

[0003] In the use process, the hardness of the sealing water and the powdered molecular sieve powder can form scale on the impeller and the baffle. Because the clearance between the impeller and the baffle is small, the scale can easily cause the vacuum pump to be jammed or stuck after shutdown. If it cannot be rotated after flushing for several times, the vacuum pump must be disassembled for repair, which is time-consuming and laborious, and the internal temperature of the vacuum pump is high and the environment is narrow, so the operation risk is large. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a wet vacuum pump anti jamming system, solving the above technical problems, avoiding the generation of vacuum pump jamming phenomenon, and improving the safety and efficiency of operation.

[0005] The utility model realizes the following technical scheme: a wet vacuum pump anti jamming system, which comprises a circulating water pool, a sealing water pool and a vacuum pump connected in sequence, wherein the vacuum pump is connected with a flushing branch, the flushing branch is provided with a main water tank, the water outlet end of the main water tank is connected with the vacuum pump through a pipeline and a self-priming pump, the water inlet end of the main water tank and the water inlet end of the sealing water pool are both connected with the circulating water pool, and the main water tank is connected with a secondary water tank for containing acidic liquid.

[0006] Further, a water softening device is connected between the sealing water pool and the circulating water pool.

[0007] Further, the main water tank is provided with a pressure regulating valve connected with the flushing branch.

[0008] Further, a steam-water separator is connected between the vacuum pump and the circulating water pool, and the steam-water separator is provided with a silencer.

[0009] Further, a pressure gauge and a flow meter are arranged on the flushing branch.

[0010] The utility model has at least the following advantages and beneficial effects: through the arrangement of the main water tank and the secondary water tank, the flushing branch is formed, the weak acid liquid flushing and softening are adopted first, and then the water flushing is adopted, the cost of flushing is saved, the descaling operation under non-stop condition is realized, the risk of vacuum pump jamming is reduced, the safety and efficiency of operation are improved, and the service life of the equipment is prolonged. BRIEF DESCRIPTION OF DRAWINGS

[0011] Figure 1 The utility model provides a kind of wet vacuum pump anti jamming system's connection schematic diagram.

[0012] Reference signs: 1-circulating water pool, 2-sealing water pool, 3-vacuum pump, 4-flushing branch, 41-main water tank, 42-vice water tank, 43-self-priming pump, 44-pressure gauge, 45-flow meter, 5-soft water equipment, 6-pressure regulating valve, 7-steam-water separator, 8-silencer. DETAILED DESCRIPTION

[0013] The specific embodiments are described below in conjunction with the accompanying drawings.

[0014] Embodiment

[0015] As Figure 1 shown, in the embodiment, a kind of wet vacuum pump anti jamming system is mainly disclosed, including the circulating water pool 1, sealing water pool 2 and vacuum pump 3 that are sequentially communicated, flushing branch 4 is connected to vacuum pump 3, flushing branch 4 is provided with main water tank 41, the water outlet of main water tank 41 is communicated with vacuum pump 3 by pipeline and self-priming pump 43, the water inlet of main water tank 41 and the water inlet of sealing water pool 2 are all communicated with circulating water pool 1, and main water tank 41 is communicated with vice water tank 42 for containing acidic liquid;It needs to be explained that circulating water pool 1, sealing water pool 2 and vacuum pump 3 are communicated by pipeline and switch valve and constitute the process branch for sealing and cooling;When vacuum valve needs to be flushed and maintained, first, the communication of vacuum valve and sealing water pool 2 is closed, at this time, vacuum pump 3 does not stop working, then acidic liquid is added to main water tank 41 by vice water tank 42, weak acid liquid is formed by mixing in main water tank 41 at certain proportion, and then enters the vacuum pump 3 of idle running by the suction of self-priming pump 43, after a set time, after the water scale is softened, circulating water pool 1 is connected, and the softened water scale is flushed away by self-priming pump 43, after running for a set time, self-priming pump 43 is closed, and the impeller and baffle of vacuum pump 3 are basically dried after vacuum pump 3 continues to run for a set time, at this time, vacuum pump 3 is stopped;Effectively solve the problem that wet vacuum pump 3 is blocked or stuck after shutdown due to the fact that water scale is attached to the impeller and baffle in its cavity, realize descaling operation under non-stop condition, reduce the risk of vacuum pump 3 jamming, improve the safety and operation efficiency of operation, prolong the service life of equipment, meanwhile, by using the mode of first weak acid liquid flushing and softening and then water flushing, the flushing cost is saved to a certain extent.

[0016] Further, in specific implementation, soft water equipment 5 is connected between the above-mentioned sealing water pool 2 and circulating water pool 1 provided in the embodiment of the utility model, to reduce the content of mineral matter in sealing water and reduce the generation of water scale.

[0017] Further, in the specific implementation, the above-mentioned main water tank 41 provided by the embodiment of the utility model is provided with a pressure regulating valve 6 communicated with the flushing branch 4; when the vacuum pump 3 needs to be flushed, the pressure and flow of the flushing branch 4 are regulated to the pressure and flow of the sealing water when the process branch is normally operated through the pressure regulating valve 6, so that the water pressure of the flushing branch 4 is kept at a stable level, the stability of the system is improved, and the equipment damage caused by pressure fluctuation is prevented.

[0018] Further, in the specific implementation, the above-mentioned vacuum pump 3 and the circulating water tank 1 provided by the embodiment of the utility model are connected with a steam-water separator 7, the steam-water separator 7 is provided with a silencer 8, the steam-water separator 7 effectively separates the gas and liquid flowing out of the vacuum pump 3, reduces the operation noise of the separation operation, improves the comfort of the working environment, and protects the equipment and the pipeline system.

[0019] Further, in the specific implementation, the above-mentioned flushing branch 4 provided by the embodiment of the utility model is provided with a pressure gauge 44 and a flow meter 45, so that the running state of the flushing branch 4 can be monitored in real time, the operation parameters can be adjusted in time, and the safety and efficiency of the system are improved.

Claims

1. A wet vacuum pump anti-blocking system comprising, in series, a circulating water tank (1), a sealing water tank (2) and a vacuum pump (3), characterized in that, The flushing branch (4) is connected with the vacuum pump (3), the flushing branch (4) is provided with a main water tank (41), the water outlet end of the main water tank (41) is communicated with the vacuum pump (3) through a pipeline and a self-priming pump (43), the water inlet end of the main water tank (41) and the water inlet end of the sealing water tank (2) are communicated with the circulating water tank (1), and the main water tank (41) is communicated with a secondary water tank (42) for containing acidic liquid.

2. A wet vacuum pump anti-blocking system according to claim 1, characterized in that, The sealing water tank (2) is connected with the circulating water tank (1) through a soft water equipment (5).

3. A wet vacuum pump anti-blocking system according to claim 1, characterized in that, The main water tank (41) is provided with a pressure regulating valve (6) communicated with the flushing branch (4).

4. The wet vacuum pump anti-blocking system according to claim 1, characterized in that, The vacuum pump (3) is connected with the circulating water tank (1) through a steam-water separator (7), and the steam-water separator (7) is provided with a silencer (8).

5. A wet vacuum pump anti-blocking system according to claim 1, characterized in that, The flushing branch (4) is provided with a pressure gauge (44) and a flowmeter (45).

Images