Water ring type vacuum unit

Abstract

The utility model discloses a water ring type vacuum unit, and belongs to the field of vacuum equipment. A water ring type vacuum unit comprises a vacuum tank, a water ring vacuum pump and a gas-water separation tank. Air inlets of the two water ring vacuum pumps connected in parallel are connected with the vacuum tank through pipelines, and air outlets of the water ring vacuum pumps are connected with the air-water separation tank through pipelines. A water outlet pipe of the gas-water separation tank is connected with a water inlet of the water ring vacuum pump through a pipeline, and a pump is connected to the pipeline in series. And the top of the gas-water separation tank is connected with a gas chamber of the water ring vacuum pump through a gas chamber pipe. According to the water ring vacuum pump, water separated from vacuum pumping is used as a working solution, the gas-water separation tank is used as a water tank, and the cost is reduced on the premise that the working requirement of the water ring vacuum pump is met.

Description

TECHNICAL FIELD

[0001] The application belongs to the field of vacuum equipment, and particularly relates to a water ring type vacuum unit. BACKGROUND

[0002] Compared with other vacuum pumps, the water ring pump can provide a lower vacuum degree, which is very important for some medical devices and diagnosis and treatment processes which need to operate under certain vacuum conditions, and the water ring pump can also safely pump flammable and explosive gas or gas-liquid mixed gas, and is very suitable for pumping medical waste gas containing a large amount of pus, blood, anesthetic waste gas and the like.

[0003] During use of the water ring vacuum pump, a water circulation system needs to be provided, and water serves as working liquid to play a role of water ring sealing and cooling, at present, a water tank and a circulation system are additionally arranged, which is high in cost, and water in the vacuum pumping is not utilized. CONTENT OF THE UTILITY MODEL

[0004] The application aims to overcome the defects of the prior art, and provides a water ring type vacuum unit, which uses water separated from vacuum pumping as working liquid, uses a gas-water separation tank as a water tank, and reduces cost under the premise of ensuring the working requirement of the water ring vacuum pump.

[0005] The application adopts the technical scheme to solve the existing problems:

[0006] The water ring type vacuum unit comprises a vacuum tank, a water ring vacuum pump and a gas-water separation tank.

[0007] The gas inlets of two parallel water ring vacuum pumps are connected with the vacuum tank through pipelines, and the gas outlets of the water ring vacuum pumps are connected with the gas-water separation tank through pipelines.

[0008] The water outlet pipe of the gas-water separation tank is connected with the water inlet of the water ring vacuum pump through a pipeline, and a pump is connected in series on the pipeline.

[0009] The top of the gas-water separation tank is connected with the gas chamber of the water ring vacuum pump through a gas chamber pipe.

[0010] Preferably, the gas-water separation tank comprises a tank body, a rotating joint is fixed in the tank body, the gas inlet end of the rotating joint is connected with the gas outlet of the water ring vacuum pump through a gas inlet pipe, the gas outlet end of the rotating joint is connected with a vertically arranged rotating pipe, a plurality of jet pipes which are arranged in a ring array around the axis of the rotating pipe are connected with the top of the rotating pipe in a penetrating mode, and the jet pipe jet port axis is arranged in cross with the radial line of the rotating pipe.

[0011] The top of the gas-water separation tank is provided with an exhaust pipe, and the water outlet pipe is arranged below the rotating joint.

[0012] Preferably, the tank body is provided with a horizontally arranged baffle, and a water leakage hole is provided between the baffle and the inner wall of the tank body. The baffle divides the inner part of the tank body into an upper gas-water separation chamber and a water storage chamber. The spray pipe is located inside the gas-water separation chamber, and the water outlet pipe is located inside the lower part of the water storage chamber.

[0013] Preferably, the nozzle is located in the middle region inside the gas-water separation chamber.

[0014] Preferably, the inner wall of the tank is provided with a plurality of vertically arranged impact plates, which are positioned directly above the water leakage hole.

[0015] Preferably, the air inlet end of the rotary joint is connected to two air inlet pipes through an air collection pipe, and the two air inlet pipes are respectively connected to the exhaust ports of two water ring vacuum pumps.

[0016] Compared with the prior art, the beneficial effects of this application are as follows:

[0017] (1) The water ring vacuum unit is equipped with a vacuum tank and a gas-water separator, realizing a modular design that is convenient for users.

[0018] (2) The gas-water separator can achieve gas-water separation and be used as a circulating water storage device, combining the two functions to reduce the cost of the whole unit. Attached Figure Description

[0019] The present application will be further described below with reference to the accompanying drawings and embodiments.

[0020] Figure 1 This is a first structural diagram of a water ring vacuum unit according to this application.

[0021] Figure 2 This is a second structural diagram of a water ring vacuum unit according to this application.

[0022] Figure 3 This is a structural diagram of a gas-water separator in a water ring vacuum unit according to this application.

[0023] Figure 4 for Figure 3 A sectional view.

[0024] In the diagram: 1-Vacuum tank, 2-Water ring vacuum pump, 3-Gas-water separator, 301-Tank body, 302-Baffle plate, 303-Gas-water separation chamber, 304-Water storage chamber, 305-Leakage hole, 306-Impact plate, 307-Exhaust pipe, 308-Inlet pipe, 309-Gas collection pipe, 3010-Rotary joint, 3011-Rotating pipe, 3012-Spray pipe, 3013-Water outlet pipe, 3014-Gas chamber pipe. Detailed Implementation

[0025] The attached figure shows the preferred embodiment of this water ring vacuum unit. The following is a more detailed description of this application in conjunction with the attached figure.

[0026] Depend on Figure 1 as well as Figure 2 As shown, a water ring vacuum unit includes a vacuum tank 1, a water ring vacuum pump 2, and a gas-water separator 3. The above three components, together with the control box, are integrated on a skid-mounted chassis to achieve modularization.

[0027] The inlets of the two parallel water ring vacuum pumps 2 are connected to the vacuum tank 1 via pipelines, and the outlets of the water ring vacuum pumps 2 are connected to the gas-water separator 3 via pipelines.

[0028] The outlet pipe 3013 of the gas-water separator 3 is connected to the inlet of the water ring vacuum pump 2 via a pipeline, and the pump is connected in series on the pipeline. The top of the gas-water separator 3 is connected to the gas chamber of the water ring vacuum pump 2 via a gas chamber pipe 3014.

[0029] Vacuum tank 1 serves as an energy storage device, providing buffering and pressure stabilization. Gas-liquid separator 3 acts as a circulating water storage device, simultaneously separating the discharged gas into gas and liquid components. Two water ring vacuum pumps 2 function as vacuum generating devices, employing a dual-pump design with each pump serving as a backup for the other, and featuring alternating and delayed operating modes:

[0030] In delay mode, when the vacuum pressure gauge reading is higher than the starting pressure, water ring vacuum pump #1 (2) starts running. After water ring vacuum pump #1 runs for 20 seconds, water ring vacuum pump #2 (2) starts running until the vacuum pressure gauge reaches the set value, at which point both pumps stop. The next time the system runs, water ring vacuum pump #2 (2) starts first, and this cycle of delay-based start / stop is repeated.

[0031] In alternating mode, the vacuum pump unit starts only one water ring vacuum pump 2 at a time, and alternates between starting and stopping according to the vacuum pressure gauge reading.

[0032] To achieve the dual function of gas-liquid separator 3 as both a gas-liquid separator and a circulating water storage device, in this embodiment, [the following is a description of the process]. Figure 3 as well as Figure 4 As shown, the gas-liquid separator 3 includes a tank body 301. A rotary joint 3010 is fixed inside the tank body 301. The air inlet of the rotary joint 3010 is connected to the exhaust port of the water ring vacuum pump 2 via an air inlet pipe 308. The exhaust port of the rotary joint 3010 is connected to a vertically arranged rotating pipe 3011. Several nozzles 3012, arranged in a ring array around the top of the rotating pipe 3011, are connected through it. The nozzle axes of the nozzles 3012 intersect with the radial lines of the rotating pipe 3011. Air is ejected through the nozzles 3012, which drive the rotating pipe 3011 to rotate, generating centrifugal force, which is used for gas-liquid separation.

[0033] The gas-water separator 3 is provided with an exhaust pipe 307 at the top and a water outlet pipe 3013 is arranged below the rotary joint 3010.

[0034] Furthermore, the tank body 301 is provided with a horizontally arranged partition 302 inside, and a water leakage hole 305 is provided between the partition 302 and the inner wall of the tank body 301. The partition 302 divides the interior of the tank body 301 into an upper gas-water separation chamber 303 and a water storage chamber 304. The spray pipe 3012 is located inside the gas-water separation chamber 303, and the water outlet pipe 3013 is located inside the lower part of the water storage chamber 304.

[0035] In order to reserve space for gas-water separation, the nozzle 3012 is located in the middle area inside the gas-water separation chamber 303.

[0036] To optimize the gas-liquid separation effect, impact separation is added on the basis of centrifugal separation. Therefore, the inner wall of the tank 301 is provided with several vertically arranged impact plates 306, which are located directly above the water leakage hole 305.

[0037] The air inlet end of the rotary joint 3010 is connected to two air inlet pipes 308 through the air collection pipe 309, and the two air inlet pipes 308 are respectively connected to the exhaust ports of the two water ring vacuum pumps 2.

[0038] A cooler can be optionally installed on the outlet pipe 3013 to achieve complete self-circulation of the working fluid and reduce waste. A bacterial filter and exhaust gas sterilizer can be optionally installed on the exhaust pipe 307 to sterilize and inactivate the exhaust gas, meeting environmental protection requirements.

[0039] The embodiments of this application have been described in detail above with reference to the accompanying drawings. However, this application is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of this application.

Claims

1. A water ring vacuum unit, characterized in that: It includes a vacuum tank (1), a water ring vacuum pump (2), and a gas-liquid separator (3); The air inlets of the two parallel water ring vacuum pumps (2) are connected to the vacuum tank (1) through pipelines, and the exhaust ports of the water ring vacuum pumps (2) are connected to the gas-water separator (3) through pipelines. The outlet pipe (3013) of the gas-water separator (3) is connected to the inlet of the water ring vacuum pump (2) through a pipeline, and the pump is connected in series on the pipeline. The top of the gas-water separator (3) is connected to the gas chamber of the water ring vacuum pump (2) via a gas chamber pipe (3014); The gas-water separator (3) includes a tank body (301), and a rotary joint (3010) is fixed inside the tank body (301). The air inlet end of the rotary joint (3010) is connected to the exhaust port of the water ring vacuum pump (2) through the air inlet pipe (308). The exhaust end of the rotary joint (3010) is connected to a vertically arranged rotating pipe (3011). Several nozzles (3012) arranged in a ring array around its axis are connected through the top of the rotating pipe (3011). The nozzle axis of the nozzle (3012) is arranged to intersect with the radial line of the rotating pipe (3011). The gas-water separator (3) is provided with an exhaust pipe (307) at the top and a water outlet pipe (3013) arranged below the rotary joint (3010).

2. The water ring vacuum unit according to claim 1, characterized in that: The tank (301) is provided with a horizontally arranged partition (302) inside. A water leakage hole (305) is provided between the partition (302) and the inner wall of the tank (301). The partition (302) divides the inside of the tank (301) into an upper gas-water separation chamber (303) and a water storage chamber (304). A spray pipe (3012) is located inside the gas-water separation chamber (303), and a water outlet pipe (3013) is located inside the lower part of the water storage chamber (304).

3. A water ring vacuum unit according to claim 2, characterized in that: The nozzle (3012) is located in the middle region inside the gas-water separation chamber (303).

4. A water ring vacuum unit according to claim 3, characterized in that: The inner wall of the tank (301) is provided with several vertically arranged impact plates (306), which are located directly above the water leakage hole (305).

5. A water ring vacuum unit according to any one of claims 2 to 4, characterized in that: The air inlet end of the rotary joint (3010) is connected to two air inlet pipes (308) through the air collection pipe (309), and the two air inlet pipes (308) are respectively connected to the exhaust ports of two water ring vacuum pumps (2).

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