CN210419407U - Distributed sewage treatment device - Google Patents

Distributed sewage treatment device Download PDF

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Publication number
CN210419407U
CN210419407U CN201921374757.1U CN201921374757U CN210419407U CN 210419407 U CN210419407 U CN 210419407U CN 201921374757 U CN201921374757 U CN 201921374757U CN 210419407 U CN210419407 U CN 210419407U
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China
Prior art keywords
liquid
pump
vacuum
pipe
vacuum tank
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CN201921374757.1U
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Chinese (zh)
Inventor
毛冬水
凌浩
廖云
江震
曾国文
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Guangdong Dongji Environmental Protection Technology Co ltd
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Guangdong Dongji Environmental Protection Technology Co ltd
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Abstract

The embodiment of the utility model discloses a decentralized sewage treatment device, which comprises a membrane bioreactor, a liquid pumping part, a liquid discharging part and a control part; liquid pumping portion includes the communicating vacuum tank with membrane bioreactor, be provided with the level gauge on the vacuum tank, the level gauge can set up maximum liquid level threshold value and minimum liquid level threshold value, still be connected with the vacuum pump on the vacuum tank, flowing back portion is including connecting the fluid-discharge tube on the vacuum tank and setting up the fluid-discharge pump on the fluid-discharge tube, when the level gauge reachd maximum liquid level threshold value, control portion control fluid-discharge pump start-up operation, when the level gauge reachd minimum liquid level threshold value, control portion control fluid-discharge pump stall, vacuum pump and fluid-discharge pump alternate work.

Description

Distributed sewage treatment device
Technical Field
The utility model relates to a sewage treatment device field, concretely relates to distributed sewage treatment plant.
Background
The membrane bioreactor device is in the use, and product water has a small amount of bubbles, in the use, accumulates along with time, reaches a certain degree after, can lead to the suction pump idle running because of the air is too much, and then can't produce water, if manual operation, wastes time and energy, needs regularly arranged personnel to go the exhaust air, influences work efficiency.
SUMMERY OF THE UTILITY MODEL
In order to solve the problems in the prior art, the utility model provides a decentralized sewage treatment device, which comprises a membrane bioreactor, a liquid pumping part connected with the membrane bioreactor, a liquid discharging part connected with the liquid pumping part, and a control part in communication connection with the liquid pumping part and the liquid discharging part;
the liquid pumping part comprises a vacuum tank communicated with the membrane bioreactor, a liquid level meter is arranged on the vacuum tank, the liquid level meter can set a maximum liquid level threshold value and a minimum liquid level threshold value, a vacuum pump is connected on the vacuum tank,
the liquid discharge part comprises a liquid discharge pipe connected to the vacuum tank and a liquid discharge pump arranged on the liquid discharge pipe,
when the liquid level meter reaches a maximum liquid level threshold value, the control part controls the liquid discharge pump to start and operate, when the liquid level meter reaches a minimum liquid level threshold value, the control part controls the liquid discharge pump to stop operating, and the vacuum pump and the liquid discharge pump work alternately.
Preferably, the vacuum pump is connected to the vacuum tank through a first vacuum tube, and an electric valve is arranged on the first vacuum tube and is in communication connection with the control part.
Preferably, a second vacuum tube is further arranged on the vacuum pump, and the vacuum pump is communicated with the exhaust barrel through the second vacuum tube.
Preferably, the liquid discharge pump includes a first liquid discharge pump and a second liquid discharge pump, the liquid discharge pipe includes a liquid discharge main pipe, the liquid discharge main pipe is provided with a first liquid discharge branch pipe and a second liquid discharge branch pipe, the liquid discharge main pipe is communicated with the vacuum tank through the first liquid discharge branch pipe and the second liquid discharge branch pipe, the first liquid discharge pump is arranged on the first liquid discharge branch pipe, and the second liquid discharge pump is arranged on the second liquid discharge branch pipe.
Preferably, a flowmeter is arranged on the liquid discharge main pipe.
Preferably, the membrane bioreactor is communicated with the vacuum tank through a liquid pumping pipe, and the liquid outlet end of the liquid pumping pipe is arranged at the top of the vacuum tank.
Preferably, the liquid extraction pipe extends into the membrane bioreactor from the top of the membrane bioreactor.
Preferably, the liquid level meter is a magnetic turn-over plate liquid level meter.
Preferably, the first vacuum tube is connected to the top of the vacuum tank.
Has the advantages that:
the embodiment of the utility model provides a distributed sewage treatment plant solves self-bleeding's problem, practices thrift the manpower, and degree of automation is higher, has improved work efficiency.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment of the present invention.
Wherein:
1. a membrane bioreactor; 11. a liquid pumping pipe; 21. a vacuum tank; 22. a liquid level meter; 23. a first vacuum tube; 24. an electrically operated valve; 25. a vacuum pump; 26. a second vacuum tube; 27. an exhaust barrel; 31. a first liquid discharge branch pipe; 32. a first drainage pump; 33. a second liquid discharge branch pipe; 34. a second drain pump; 35. a liquid drainage main pipe; 36. a flow meter.
Detailed Description
The technical scheme of the utility model is described in detail with the accompanying drawings.
Example 1
As shown in figure 1, a distributed sewage treatment device comprises a membrane bioreactor 1, a liquid extracting part connected with the membrane bioreactor 1, a liquid discharging part connected with the liquid extracting part, and a control part in communication connection with the liquid extracting part and the liquid discharging part; the liquid pumping part comprises a vacuum tank 21 communicated with the membrane bioreactor 1, a liquid level meter 22 is arranged on the vacuum tank 21, the liquid level meter 22 can set a maximum liquid level threshold value and a minimum liquid level threshold value, a vacuum pump 25 is further connected to the vacuum tank 21, the liquid draining part comprises a liquid draining pipe connected to the vacuum tank 21 and a liquid draining pump arranged on the liquid draining pipe, when the liquid level meter 22 reaches the maximum liquid level threshold value, the control part controls the liquid draining pump to start to operate, when the liquid level meter 22 reaches the minimum liquid level threshold value, the control part controls the liquid draining pump to stop operating, and the vacuum pump 25 and the liquid draining pump work alternately.
Further, in the prior art, the liquid in the membrane bioreactor 1 generates less gas in the liquid during reaction, the gas can enter the vacuum tank along with the pipeline, so that the gas in the vacuum tank is accumulated, and after a certain degree is reached, the suction pump idles due to too much air, so that water cannot be produced.
Further, the membrane bioreactor 1 is used for purifying sewage, and the purified water is discharged through the liquid pumping part and the liquid discharging part.
Further, the liquid level meter 22 is disposed on a sidewall of the vacuum tank 21, and is configured to detect a liquid level of water in the vacuum tank 21.
Further, when the liquid level in the vacuum tank 21 reaches the maximum liquid level threshold value of the liquid level meter 22, a relay signal is sent to the PLC to control the liquid discharge pump to start operation, and the vacuum pump 25 is controlled to stop operation, so that the liquid discharge pump pumps water out of the vacuum tank 21.
Further, when the liquid level in the vacuum tank 21 reaches the minimum liquid level threshold value of the liquid level meter 22, a relay signal is sent out to control the liquid discharge pump to stop running, the vacuum pump 25 is controlled to start running, the vacuum pump 25 pumps air out of the vacuum tank 21, the pressure in the vacuum tank 21 is reduced, and the membrane bioreactor 1 is pressurized into the vacuum tank 21 by the atmospheric pressure.
Further, the controller is a PLC controller.
Further, the vacuum pump 25 and the drain pump operate alternately, that is, when the vacuum pump 25 operates, the drain pump stops, and when the vacuum pump 25 stops, the drain pump operates.
Further, upon start-up of the apparatus, if the liquid level in the vacuum tank 21 is between the maximum liquid level threshold and the minimum liquid level threshold, the liquid discharge pump or vacuum pump 25 is turned on to lower the liquid level to the minimum liquid level threshold or to raise the liquid level to the maximum liquid level threshold. After the liquid discharge pump is started, when the liquid level meter 22 is reduced to the minimum liquid level threshold value, the control part controls the liquid discharge pump to stop running and controls the vacuum pump 25 to start running, so that water is pumped from the membrane bioreactor 1 to the vacuum tank 21. After the vacuum pump 25 is started, when the liquid level reaches the maximum liquid level threshold value, the control part controls the liquid discharge pump to start, controls the vacuum pump 25 to stop running, and realizes the discharge of water from the vacuum tank 21. If the liquid level in the vacuum tank 21 is higher than the maximum liquid level threshold value when the equipment is just started, the liquid discharge pump is directly started. If the liquid level in the vacuum tank 21 is below the minimum liquid level threshold immediately after the start-up of the apparatus, the vacuum pump 25 is turned on directly.
Further, the liquid level meter 22 is a magnetic turn-over plate liquid level meter 22.
The vacuum pump 25 is connected to the vacuum tank 21 through a first vacuum tube 23, an electric valve 24 is provided on the first vacuum tube 23, and the electric valve 24 is in communication connection with the control part.
Further, the control section controls the opening and closing of the electric valve 24, and when the vacuum pump 25 and the electric valve 24 are simultaneously opened or closed.
Specifically, the electric valve 24 is an electric ball valve.
The vacuum pump 25 is further provided with a second vacuum tube 26, and the vacuum pump 25 is communicated with an exhaust barrel 27 through the second vacuum tube 26.
Further, the exhaust bucket 27 serves to evacuate the gas exhausted from the vacuum pump 25 while collecting water mixed in the exhausted gas.
Further, the side wall of the exhaust barrel 27 is provided with an exhaust hole, and the gas is exhausted from the exhaust hole, and the water is condensed and flows to the bottom of the exhaust barrel 27.
The liquid discharge pump comprises a first liquid discharge pump 32 and a second liquid discharge pump 34, the liquid discharge pipe comprises a liquid discharge main pipe 35, a first liquid discharge branch pipe 31 and a second liquid discharge branch pipe 33 are arranged on the liquid discharge main pipe 35, the liquid discharge main pipe 35 is communicated with the vacuum tank 21 through the first liquid discharge branch pipe 31 and the second liquid discharge branch pipe 33, the first liquid discharge pump 32 is arranged on the first liquid discharge branch pipe 31, and the second liquid discharge pump 34 is arranged on the second liquid discharge branch pipe 33.
Further, the first drain branch pipe 31 and the second drain branch pipe 33 are provided in parallel, and the first drain pump 32 and the second drain pump 34 may be operated simultaneously or separately.
Further, a first branch valve is arranged on the first liquid discharge branch pipe 31, and a second branch valve is arranged on the second liquid discharge branch pipe 33.
The main liquid discharge pipe 35 is provided with a flow meter 36.
Further, the flow meter 36 is an electromagnetic flow meter 36.
The membrane bioreactor 1 is communicated with the vacuum tank 21 through a liquid extracting pipe 11, and the liquid outlet end of the liquid extracting pipe 11 is arranged at the top of the vacuum tank 21. The liquid pumping pipe 11 extends into the membrane bioreactor 1 from the top of the membrane bioreactor 1, the liquid inlet end of the liquid pumping pipe 11 extends into the membrane bioreactor 1 from the top of the membrane bioreactor 1, and the liquid inlet end of the liquid pumping pipe 11 is positioned below the liquid level in the membrane bioreactor 1.
The first vacuum tube 23 is connected to the top of the vacuum tank 21 and prevents water from being pumped into the vacuum pump 25.
The embodiment of the utility model provides a distributed sewage treatment plant solves self-bleeding's problem, practices thrift the manpower, and degree of automation is higher, has improved work efficiency. After the vacuum pump, the vacuum tank and the magnetic turning plate are matched, the amount of air can be monitored by the magnetic turning plate, automatic exhaust is conducted through the vacuum pump, the vacuum pump can be automatically stopped to operate after the air is exhausted to the indicated amount, then the air enters an automatic water production stage, and personnel is not required to be arranged for guard.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (9)

1. A distributed sewage treatment device is characterized by comprising a membrane bioreactor, a liquid pumping part connected with the membrane bioreactor, a liquid discharging part connected with the liquid pumping part, and a control part in communication connection with the liquid pumping part and the liquid discharging part;
the liquid pumping part comprises a vacuum tank communicated with the membrane bioreactor, a liquid level meter is arranged on the vacuum tank, the liquid level meter can set a maximum liquid level threshold value and a minimum liquid level threshold value, a vacuum pump is connected on the vacuum tank,
the liquid discharge part comprises a liquid discharge pipe connected to the vacuum tank and a liquid discharge pump arranged on the liquid discharge pipe,
when the liquid level meter reaches a maximum liquid level threshold value, the control part controls the liquid discharge pump to start and operate, when the liquid level meter reaches a minimum liquid level threshold value, the control part controls the liquid discharge pump to stop operating, and the vacuum pump and the liquid discharge pump work alternately.
2. The decentralized wastewater treatment plant according to claim 1, wherein the vacuum pump is connected to the vacuum tank via a first vacuum pipe, and wherein the first vacuum pipe is provided with an electrically operated valve, and wherein the electrically operated valve is in communication connection with the control unit.
3. The decentralized sewage treatment plant according to claim 2, wherein a second vacuum tube is further provided on the vacuum pump, and the vacuum pump is in communication with the exhaust barrel through the second vacuum tube.
4. The decentralized sewage treatment plant according to claim 1, wherein the drainage pump comprises a first drainage pump and a second drainage pump, the drainage pipe comprises a main drainage pipe, the main drainage pipe is provided with a first and a second branch drainage pipes, the main drainage pipe is communicated with the vacuum tank through the first and the second branch drainage pipes, the first drainage pump is provided on the first branch drainage pipe, and the second drainage pump is provided on the second branch drainage pipe.
5. The decentralized wastewater treatment plant according to claim 4, wherein a flow meter is provided on the main drainage pipe.
6. The decentralized sewage treatment plant according to claim 1, wherein the membrane bioreactor is in communication with the vacuum tank via a liquid extraction pipe, and the liquid outlet end of the liquid extraction pipe is arranged at the top of the vacuum tank.
7. The decentralized sewage treatment plant according to claim 6, wherein the liquid withdrawal pipe extends into the membrane bioreactor from the top of the membrane bioreactor.
8. The decentralized wastewater treatment plant according to claim 1, wherein the level gauge is a magnetic flap level gauge.
9. The decentralized wastewater treatment plant according to claim 2, wherein the first vacuum pipe is connected to the top of the vacuum tank.
CN201921374757.1U 2019-08-22 2019-08-22 Distributed sewage treatment device Active CN210419407U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201921374757.1U CN210419407U (en) 2019-08-22 2019-08-22 Distributed sewage treatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201921374757.1U CN210419407U (en) 2019-08-22 2019-08-22 Distributed sewage treatment device

Publications (1)

Publication Number Publication Date
CN210419407U true CN210419407U (en) 2020-04-28

Family

ID=70363951

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201921374757.1U Active CN210419407U (en) 2019-08-22 2019-08-22 Distributed sewage treatment device

Country Status (1)

Country Link
CN (1) CN210419407U (en)

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GR01 Patent grant
GR01 Patent grant
CB03 Change of inventor or designer information

Inventor after: Mao Dongshui

Inventor after: Ling Hao

Inventor after: Liao Yun

Inventor after: Jiang Zhen

Inventor after: Zeng Guowen

Inventor before: Mao Dongshui

Inventor before: Ling Hao

Inventor before: Liao Yun

Inventor before: Jiang Zhen

Inventor before: Zeng Guowen

CB03 Change of inventor or designer information