Vacuum pump station for vacuum sewage tank

Abstract

The utility model relates to the field of vacuum pump stations, in particular to a vacuum pump station for a vacuum sewage tank, which comprises a mounting base, a plurality of vacuum pumps are arranged on the mounting base side by side, and each vacuum pump is provided with an air suction inlet, a steam-water outlet and a water replenishing port. The air exhaust inlet, the steam-water exhaust port and the water replenishing port are connected with an air exhaust collecting pipe, a steam-water discharge collecting pipe and a water replenishing collecting pipe respectively, outlet ends of the steam-water discharge collecting pipe are collected into an outlet pipe and connected to the steam-water separation chamber, the steam-water separation chamber comprises a demister and a water collecting tank, and the outlet pipe of the steam-water discharge collecting pipe is connected with the water collecting tank. A water outlet is formed in the bottom of the water collecting tank, and the water outlet is communicated with the water replenishing collecting pipe for water replenishing of the vacuum pump. According to the vacuum pump station, the working efficiency of the vacuum pump set is improved, the movement reliability of the vacuum pump set is ensured, meanwhile, gas exhausted during vacuum gas pumping of the vacuum sewage tank is conveniently collected in a centralized mode for subsequent peculiar smell removal treatment, and emission pollution is reduced.

Description

Technical Field

[0001] The utility model relates to the field of vacuum pump stations, in particular to a vacuum pump station for a vacuum sewage tank. Background Art

[0002] One type of container used to store sewage at garbage transfer stations is a vacuum sewage tank. When storing water, the tank is in a vacuum state. When draining, the pressure is first released and air is inflated before the water is discharged through the drain outlet. Every day, large amounts of garbage are squeezed into the garbage transfer station to generate sewage. Sewage is also collected by mobile sewage collection equipment, which also needs to be stored in vacuum tanks at the transfer station. Once the tank is full, it is discharged into a centralized sewage treatment facility for treatment. To increase the water storage capacity and ensure that sewage from different equipment can be promptly injected into the sewage tank, multiple sewage tanks are generally centralized, requiring vacuum equipment that can fully meet the vacuum requirements. The conventional configuration is one tank with a vacuum pump connected to the tank cavity via a vacuum pipe. When vacuuming is required, the vacuum pump operates. With this one-pump-one-tank configuration, the vacuum tank cannot be used properly when repairing the vacuum pump or piping. Therefore, in order to improve equipment utilization, facilitate unified maintenance, and maximize the efficiency and production capacity of the equipment, the vacuum equipment of multiple tanks in the garbage transfer station needs to be equipped with a vacuum pump station with a certain integration effect. While ensuring the equipment utilization rate, it is also necessary to ensure that when individual vacuum equipment or pipelines are maintained, the vacuum system works normally to maintain the vacuum requirements. Utility Model Content

[0003] Aiming at the vacuuming demand of multiple vacuum sewage tanks in a garbage transfer station, the utility model provides a vacuum pump station for the vacuum sewage tanks, in which vacuum pump groups are centrally arranged to supply the multiple tanks.

[0004] The purpose of the present utility model is achieved in this way. A vacuum pump station for a vacuum sewage tank comprises a mounting base, a plurality of vacuum pumps are arranged side by side on the mounting base, each of the vacuum pumps is respectively provided with an air extraction inlet, a steam and water discharge outlet and a water supply inlet, and is characterized in that the air extraction inlet, the steam and water discharge outlet and the water supply inlet are respectively connected with an air extraction collecting pipe, a steam and water discharge collecting pipe and a water supply collecting pipe, the outlet end of the steam and water discharge collecting pipe is collected into an outlet pipe connected to a steam and water separation chamber, the steam and water separation chamber comprises a demister and a water collecting tank, the outlet pipe of the steam and water discharge collecting pipe is connected to the water collecting tank, a drain outlet is provided at the bottom of the water collecting tank, and the drain outlet is connected to the water supply collecting pipe for water supply to the vacuum pump.

[0005] The vacuum pump station of the present invention integrates multiple vacuum pumps, and different inlets and outlets are respectively collected into collecting pipes with the same function. The unified integration facilitates the connection and use of suction pipes for vacuuming multiple tanks. When connected, the vacuum suction port of the tank used for vacuuming can also be connected to the suction collecting pipe in a branching and collecting manner, which is convenient for the coordinated use of multiple tanks and multiple vacuum pumps, ensuring that when individual vacuum pumps or vacuum pipelines fail to be repaired, they can be connected to other normally working pump circuits through valve control in the pipeline. The steam-water outlet of the multi-pump group is supplied with a steam-water separator for centralized steam-water separation, which flows into the water collection tank after separation for recycling by each vacuum pump. The effluent from the multi-pump integration is integrated for treatment and recycling, and the odorous gas discharged from the sewage tank after vacuuming is concentrated through steam-water separation and then collected into the deodorization pipeline for deodorization, so as to ensure the cleanliness of the exhaust gas and avoid pollution of the surrounding environment. Therefore, the beneficial effects of the vacuum pump station for a vacuum sewage tank of the utility model are: improving the working efficiency of the vacuum pump group, ensuring the reliability of the movement of the vacuum pump group, and also facilitating the centralized collection of exhaust gas when the vacuum sewage tank is pumping true air for subsequent odor removal treatment, thereby reducing emission pollution.

[0006] Furthermore, an aerosol discharge pipe is provided on the top of the water collecting tank. The aerosol discharge pipe is vertically arranged and the upper end is connected to the demister. An exhaust port is provided on the top of the demister, and the exhaust port is connected to the gas deodorization pipeline.

[0007] In order to facilitate the maintenance of the water collecting tank or timely drainage when the water level is too high, a tee is connected between the drain outlet of the water collecting tank and the water replenishment collection pipe, and the third pipe outlet of the tee is connected to a normally closed valve for drainage outside the water collecting tank.

[0008] In order to facilitate monitoring of the water temperature and water level in the water collecting tank, a temperature sensor and a liquid level sensor are provided in the water collecting tank.

[0009] To ensure the reliability of the vacuum pump group, the vacuum pumps are arranged in pairs in multiple groups. Each group of vacuum pumps is set as a main pump and a backup pump respectively. The exhaust inlets of the two vacuum pumps arranged in pairs in each group are collected to the exhaust collection pipe through an exhaust pipe. A check valve is provided on the exhaust pipe of each vacuum pump, and a first pneumatic valve is provided on the exhaust collection pipe. A filter valve is connected to the pipeline at the front end of the inlet of the first pneumatic valve.

[0010] In order to collect and process the depressurized gas in the vacuum tank when the tank is full of water and the pressure is released, a ventilation pipeline is connected to the branch of the air extraction collection pipe between the filter valve and the first pneumatic valve. A ventilation valve is provided on the ventilation pipeline, and the ventilation pipeline is connected to the deodorization pipeline. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 This is a schematic diagram of a vacuum pump station for a vacuum sewage tank according to the present invention.

[0012] Figure 2 This is a three-dimensional diagram of a vacuum pump station for a vacuum sewage tank according to the present invention.

[0013] Among them, 1 vacuum pump; 101 steam and water discharge outlet; 102 exhaust inlet; 103 water supply port; 2 steam and water separation chamber; 201 water collecting tank; 202 defogger; 203 steam and mist exhaust pipe; 3 deodorization pipeline; 4 water collecting tank water supply pipe; 5 check valve; 6 first pneumatic valve; 7 ventilation pipeline; 8 ventilation valve; 9 water supply collection pipe; 10 second pneumatic valve; 11 normally closed valve; 12 steam and water discharge collection pipe; 13 installation base; 14 exhaust collection pipe; 15 air filter valve. DETAILED DESCRIPTION

[0014] like Figure 1 and Figure 2 The figure shows a vacuum pump station for a vacuum sewage tank according to the present invention, comprising a mounting base 13 on which a plurality of vacuum pumps 1 are arranged in parallel. Each vacuum pump 2 is provided with an air extraction inlet 102, a steam-water discharge outlet 101, and a water supply inlet 103. When the pipes are connected, the air extraction inlet 102, the steam-water discharge outlet 101, and the water supply inlet 103 are connected to the air extraction manifold 14, the steam-water discharge manifold 12, and the water supply manifold 9, respectively. The outlet end of the steam-water discharge manifold 12 is combined into an outlet pipe connected to the steam-water separation chamber 2.

[0015] To facilitate gas-water separation and water collection, the gas-water separation chamber 2 includes a demister 202 and a water collecting tank 203. The outlet pipe of the gas-water discharge collection pipe 12 is connected to the water collecting tank 201. A drain outlet is provided at the bottom of the water collecting tank 201, and the drain outlet is connected to the water replenishment collection pipe 9 for circulating water replenishment of the vacuum pump; an aerosol discharge pipe 203 is provided at the top of the water collecting tank 201. The aerosol discharge pipe 203 is vertically arranged and the upper end is connected to the demister 202. An exhaust port is provided at the top of the demister 202, and the exhaust port is connected to the gas deodorization pipeline 3, so as to facilitate the separated gas to be sent to the deodorization system for emission reduction treatment.

[0016] In order to facilitate timely drainage when the water level is too high during maintenance of the water collecting tank 201 or system shutdown, a tee is connected between the drain outlet of the water collecting tank 201 and the water supply collection pipe 9, and the third pipe outlet of the tee is connected to a normally closed valve for drainage outside the water collecting tank.

[0017] In addition, in order to facilitate monitoring of the water temperature and water level in the water collecting tank 201, a temperature sensor and a liquid level sensor are provided in the water collecting tank.

[0018] To ensure the continuous and reliable operation of the vacuum pump group, multiple groups of vacuum pumps 1 are arranged in pairs of two. Each group of vacuum pumps is set as a main pump and a standby pump respectively. The exhaust inlets of the two vacuum pumps in each pair are collected to the exhaust collection pipe through the exhaust pipe. A check valve 5 is provided on the exhaust pipe of each vacuum pump, and a first pneumatic valve 6 is provided on the exhaust collection pipe 14. A filter valve 15 is connected to the pipeline at the front end of the inlet of the first pneumatic valve 6.

[0019] In order to collect and process the decompressed gas in the vacuum tank when the water in the tank is full and the pressure is released, the branch of the air extraction collection pipe between the filter valve 15 and the first pneumatic valve 6 is connected to a ventilation pipeline 7, and a ventilation valve 8 is provided on the ventilation pipeline 7. The ventilation pipeline 7 is connected to the deodorization pipe 3.

[0020] The vacuum pump station of the present invention is used for vacuuming multiple vacuum tanks in a garbage transfer station, and multiple vacuum pumps 1 are integrated and arranged, and different inlets and outlets are also respectively collected into a collection pipe with the same function. The unified integration is convenient for connecting and using the suction pipelines for vacuuming multiple tanks; when connected, the vacuum suction port of the tank used for vacuuming can also be connected to the exhaust collection pipe in a branch collection manner, which is convenient for the coordinated use of multiple tanks and multiple vacuum pumps, and ensures that when individual vacuum pumps or vacuum pipelines fail to be repaired, they can be connected to other normally working pump circuits through valve control in the pipeline. The steam-water outlet of the multi-pump group is supplied with a steam-water separator for centralized steam-water separation, and the steam-water is then separated and flows into a water collection tank for recycling by each vacuum pump. The integrated effluent from the multi-pump is collected in the water collection tank for recycling and reuse by each pump, and the odorous gas discharged from the vacuum tank after vacuuming is concentrated through the steam-water separation and then collected into the deodorization pipeline for deodorization, so as to ensure the cleanliness of the exhaust gas and avoid pollution of the surrounding environment.

[0021] Therefore, the beneficial effects of the vacuum pump station for a vacuum sewage tank of the utility model are: improving the working efficiency of the vacuum pump group, ensuring the reliability of the movement of the vacuum pump group, and also facilitating the centralized collection of exhaust gas when the vacuum sewage tank is pumping true air for subsequent odor removal treatment, thereby reducing emission pollution.

Claims

1. A vacuum pump station for a vacuum sewage tank, comprising a mounting base, on which a plurality of vacuum pumps are arranged in parallel, each of which is provided with an air extraction inlet, a steam and water discharge outlet, and a water supply inlet, characterized in that: The air extraction inlet, steam and water discharge outlet and water replenishment inlet are respectively connected to the air extraction collecting pipe, steam and water discharge collecting pipe and water replenishment collecting pipe. The outlet ends of the steam and water discharge collecting pipes are collected into an outlet pipe and connected to the steam and water separation chamber. The steam and water separation chamber includes a demister and a water collecting tank. The outlet pipe of the steam and water discharge collecting pipe is connected to the water collecting tank. A drain outlet is provided at the bottom of the water collecting tank. The drain outlet is connected to the water replenishment collecting pipe for replenishing water to the vacuum pump.

2. The vacuum pump station for a vacuum sewage tank according to claim 1, characterized in that: An aerosol discharge pipe is provided on the top of the water collecting tank. The aerosol discharge pipe is vertically arranged and the upper end is connected to the demister. An exhaust port is provided on the top of the demister, and the exhaust port is connected to the gas deodorization pipeline.

3. The vacuum pump station for a vacuum sewage tank according to claim 1, characterized in that: A tee is connected between the drain outlet of the water collecting tank and the water replenishment collecting pipe, and the third pipe outlet of the tee is connected to a normally closed valve for draining water outside the water collecting tank.

4. The vacuum pump station for a vacuum sewage tank according to claim 1, characterized in that: A temperature sensor and a liquid level sensor are arranged in the water collecting tank.

5. The vacuum pump station for a vacuum sewage tank according to claim 1, characterized in that: The vacuum pumps are arranged in pairs in multiple groups, and each group of vacuum pumps is respectively set as a main pump and a backup pump. The exhaust inlets of the two vacuum pumps arranged in pairs in each group are collected to the exhaust collection pipe through an exhaust pipe. A check valve is provided on the exhaust pipe of each vacuum pump, and a first pneumatic valve is provided on the exhaust collection pipe. A filter valve is connected to the pipeline at the front end of the inlet of the first pneumatic valve.

6. The vacuum pump station for a vacuum sewage tank according to claim 5, characterized in that: The upper branch of the air extraction collecting pipe between the filter valve and the first pneumatic valve is connected to a ventilation pipeline, a ventilation valve is provided on the ventilation pipeline, and the ventilation pipeline is communicated with the deodorization pipeline.

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