CN205444430U - Double pump sewage promotes pump station - Google Patents

Abstract

The utility model discloses a double pump sewage promotes pump station, include the box and locate two pumps on the box, the box is equipped with water inlet, delivery port and gas vent, two pumps are still controlled with water from delivery port exhaust atmospheric pressure sensing level control apparatus including being used for changing through the atmospheric pressure in the box in turn to the pump station. The utility model discloses a change of atmospheric pressure makes the pump work in turn when realizing relative accurate control liquid level precision, and the liquid level precision is high, and reduce the fault is rateed, long service life.

Description

Double pump sewage lifting pump station

technical field

The utility model belongs to the technical field of sewage treatment systems, in particular to a double-pump sewage lifting pump station.

Background technique

The double-pump sewage lifting pump station is an indispensable and important part of the sewage treatment system, which is used to lift the sewage and transport it to the sewage treatment plant for water treatment. Traditional sewage lifting devices use stainless steel or civil construction pits, polluting the natural environment, affecting the living environment, threatening personal safety, occupying a large space, high civil construction costs, sewage pumps and high maintenance costs. Moreover, the existing container adopts stainless steel welding or sump, which is easy to corrode and has a short service life; the existing pump is built-in and installed, which is difficult to maintain and repair, and has a short service life; The problem of short life; the existing equipment is complicated to install and easy to block.

Contents of the invention

The utility model aims at at least solving one of the technical problems existing in the prior art. Therefore, the utility model provides a double-pump sewage lifting pumping station, the purpose of which is to achieve relatively accurate control of the liquid level accuracy through the change of air pressure, and at the same time enable the pumps to work alternately and reduce the failure rate.

In order to achieve the above object, the technical scheme that the utility model takes is:

A double-pump sewage lifting pump station, including a box body and two pumps arranged on the box body, the box body is provided with a water inlet, a water outlet port and an exhaust port, and the pump station also includes a pump for passing through the box body The change of the air pressure alternately controls the two pumps to discharge the water from the water outlet by the air pressure sensing liquid level control device.

The two pumps are respectively a first pump and a second pump, the water inlet includes a first water inlet and a second water inlet, the water outlet includes a first water outlet and a second water outlet, and the air pressure sensor liquid level The control device alternately controls the first pump and the second pump to discharge water correspondingly from the first water outlet and the second water outlet respectively.

The air pressure sensing liquid level control device includes a controller and an air pressure sensor for detecting the air pressure in the tank, and the air pressure sensor, the first pump and the second pump are all connected to the controller.

The box body also includes a threaded cover and a threaded port matching the threaded cover. The threaded cover is provided with an air outlet, and the air pressure sensing liquid level control device is arranged on the outside of the box and connected to the air outlet through a gas pipe.

Both the box body and the threaded cover are made of HDPE material.

The box body also includes an inspection installation hole and a cover for covering the inspection installation hole.

The pump station also includes a U-shaped tee connected to the first water outlet and the second water outlet.

The water outlet joint is connected with the water outlet of the U-shaped tee, and a one-way valve is arranged between the U-shaped tee and the first water outlet and the second water outlet.

Both the first pump and the second pump are detachably and fixedly connected to the casing through flanges.

Both the first pump and the second pump are dry-installed pumps.

The pump station has an integrated structure.

Both the first pump and the second pump are provided with lifting lugs at the ends away from the connection with the tank.

Beneficial effects of the utility model: the utility model achieves relatively accurate control of the liquid level accuracy through the change of the air pressure, and at the same time enables the pump to work alternately, with high liquid level accuracy, reduced failure rate, and long service life; the dry-installed pump is adopted, It is convenient for maintenance and repair, and prolongs the service life of the pump; the whole lifting pump station is an integrated structure, which is convenient for transportation and installation; the HDPE water tank is formed at one time, without welds, polymer materials, corrosion resistance, light weight, and long service life. The pump is fixedly installed and connected to the tank through flanges, which is convenient for disassembly and maintenance.

Description of drawings

This manual includes the following drawings, the contents shown are:

Fig. 1 is a structural schematic diagram of a double-pump sewage lifting pump station of the present invention.

Labeled in the figure:

1. First pump, 2. Lifting lug, 3. Box body, 4. Threaded cover, 5. First water inlet, 6. Exhaust port, 7. Second water inlet, 8. Water outlet connector, 9. U Type tee, 10, the second pump, 11, check valve, 12, flange.

detailed description

Next, with reference to the accompanying drawings, through the description of the embodiments, the specific implementation of the present utility model will be further described in detail, the purpose is to help those skilled in the art to have a more complete, accurate and in-depth understanding of the concept and technical solutions of the present utility model , and contribute to its implementation.

As shown in Figure 1, the utility model specifically relates to a double-pump sewage lifting pump station, which includes a box body 3 and two pumps arranged on the box body, and the box body 3 is provided with a water inlet, a water outlet and an exhaust port 6 The double-pump sewage lifting pump station also includes an air pressure sensing liquid level control device for alternately controlling the two pumps to discharge water from the water outlet through the change of air pressure in the tank. The setting of the exhaust port 6 is to avoid the formation of a closed space in the box, which will prevent water from entering. Of course, it is better to set the exhaust port relatively smaller, so that the opening and closing of the exhaust port will not affect the air pressure sensor liquid level control The device detects and judges the change of air pressure in the box.

Preferably, the two pumps are respectively the first pump 1 and the second pump 10, the water inlet includes the first water inlet 5 and the second water inlet 7, the water outlet includes the first water outlet and the second water outlet, and the air pressure transmission The sensing liquid level control device alternately controls the first pump and the second pump to discharge water correspondingly from the first water outlet and the second water outlet respectively. Both the first pump 1 and the second pump 10 are detachably and fixedly connected to the box body 3 through the flange 12, such as bolts and nuts, etc., which are convenient for disassembly and maintenance. Both the first pump 1 and the second pump 10 are dry-installed pumps, which are convenient for maintenance and repair and prolong the service life of the pumps. Both the first pump and the second pump are provided with lifting lugs 2 at the ends away from the connection with the tank. The air pressure sensing liquid level control device includes a controller and an air pressure sensor for detecting the air pressure in the tank. The air pressure sensor, the first pump 1 and the second pump 10 are all connected to the controller. Of course, the air pressure sensor should use a micro air pressure sensor to make its detection sensitivity meet the requirements. The specific working process is: when the water entering the tank from the first water inlet gradually increases, the collected gas pressure in the tank increases, that is, the signal of the gas pressure in the tank is collected by the micro-pressure sensor, and the pressure signal is transmitted to the The controller, which is processed by the controller, compares the pressure signal value with the preset value of the controller. When the pressure signal value exceeds the set value, the controller controls the first pump 1 to start, and the water in the tank It is discharged from the first water outlet. When the water is discharged, the gas volume in the tank increases, and the pressure signal value changes accordingly. The micro-pressure sensor transmits the signal value to the controller, and the controller controls the first pump to stop after comprehensive processing. At this time, the first water inlet is closed, and the water is taken in from the second water inlet. The same working principle as above, the controller collects the pressure signal in the tank through the micro-pressure sensor to control the work of the second pump, so that the second pump pumps the water It is discharged through the second water outlet, and such an alternate cycle enables the double-pump sewage lifting pump station to operate stably and normally all the time. Double pump technology is adopted, and the two pumps are used alternately, so that the pump has sufficient rest time, low failure rate and long service life.

The box body also includes a threaded cover 4 and a threaded port matching the threaded cover 4. The threaded cover 4 is provided with an air outlet, and the air pressure sensing liquid level control device is arranged on the outside of the box body and is connected to the air outlet through a gas pipe. In order to facilitate maintenance, the box body can also include an inspection installation hole and a cover body for sealing the inspection installation hole. The cover body and the inspection installation hole can also be arranged in a structure similar to a threaded cover and a threaded port for threaded connection. Specifically, the air pressure sensing liquid level control device can be arranged on the outside of the box in the form of a control cabinet. The setting of this structure enables the air pressure sensor liquid level control device to avoid corrosion caused by contact with water in the tank, and prevent the air pressure sensor from contacting water vapor to cause work failure and the like. In order to avoid air leakage and affect the detection accuracy of the air pressure sensor, a first sealing structure is provided between the first threaded cover 4 and the first threaded opening, and a second sealing structure is provided between the air pipe and the air outlet. The first sealing structure may be a rubber gasket, sealant or the like. The second sealing structure may be sealant, sealant paste and the like.

Both the box body 3 and the threaded cover 4 are made of HDPE material. The water tank is formed of HDPE material, no weld seam, polymer material, corrosion resistance, light weight and long service life.

The double-pump sewage lifting pump station also includes a U-shaped tee 9 connected to the first water outlet and the second water outlet. This structure is designed so that the drain water can be discharged from one discharge port.

The water outlet connector 8 is connected to the water outlet of the U-shaped tee 9 , and a one-way valve 11 is provided between the U-shaped tee 9 and the first water outlet and the second water outlet. The one-way valve is arranged so that the water discharged from the water outlet can only flow in the direction of the water outlet joint, so as to avoid the backflow of the discharged water.

Preferably, the double-pump sewage lifting pump station has an integrated structure. This design facilitates the transportation of the pumping station and is easy to install.

The utility model has been exemplarily described above in conjunction with the accompanying drawings. Apparently, the specific implementation of the present invention is not limited by the above methods. As long as the various insubstantial improvements made by adopting the method concept and technical solution of the present utility model; within the scope of protection.

Claims (10)

1. a double pump sewage lifting pump station, including casing and two pumps being located on casing, described casing is provided with water inlet, outlet and air vent, it is characterised in that: described pumping plant is also included for alternately being controlled the air pressure sensing fluid level control device that water is discharged by two pumps from outlet by the air pressure change in casing.

Double pump sewage lifting pump station the most according to claim 1, it is characterized in that: said two pump is respectively the first pump and the second pump, described water inlet includes the first water inlet and the second water inlet, described outlet includes the first outlet and the second outlet, and air pressure sensing fluid level control device alternately controls the first pump and the second pump and discharges the most corresponding for water from the first outlet and the second outlet.

Double pump sewage lifting pump station the most according to claim 2, it is characterised in that: described air pressure sensing fluid level control device include controller and in detection case body the baroceptor of air pressure, described baroceptor, the first pump and the second pump are all connected with controller.

Double pump sewage lifting pump station the most according to claim 2, it is characterized in that: described casing also includes threaded cap and the screw thread mouth mated with threaded cap, described threaded cap is provided with venthole, and described air pressure sensing fluid level control device is located at the outside of casing and is connected with venthole by trachea.

Double pump sewage lifting pump station the most according to claim 4, it is characterised in that: described casing and threaded cap all use HDPE material to make.

Double pump sewage lifting pump station the most according to claim 2, it is characterised in that: described pumping plant also includes the U-shaped threeway being connected with the first outlet and the second outlet.

Double pump sewage lifting pump station the most according to claim 6, it is characterised in that: it is connected by the water side of water outlet joint with U-shaped threeway, between U-shaped threeway and the first outlet and the second outlet, is equipped with check valve.

Double pump sewage lifting pump station the most according to claim 2, it is characterised in that: described first pump and the second pump are all detachably fixed with described casing by flange and are connected.

Double pump sewage lifting pump station the most according to claim 8, it is characterised in that: described first pump and the second pump are pump dry type and install pump, and described first pump and the second pump are equipped with hanger away from the one end being connected with casing.

Double pump sewage lifting pump station the most according to claim 1, it is characterised in that: described pumping plant is integral type structure.