CN111894099A - A flow regulation and flow control device suitable for the front end of a buried sewage plant - Google Patents

Abstract

The invention discloses a flow regulation and flow control device suitable for the front end of a buried sewage plant, comprising a front flow control channel, a flow regulation channel, a rear flow control channel and an overtaking channel; the front control flow channel is provided with a flow control electric gate , The electric gate and the water inlet pipe in front of the overpass canal; the flow regulation channel is provided with an adjustment weir gate, and the front control flow channel and the flow regulation channel are connected through the flow control electric gate to control whether they are connected; the rear flow control channel is provided with an overrun channel The rear electric gate and the water outlet pipe, the flow regulating channel adjusts the operating water level in the flow regulating channel by adjusting the weir gate; the overrunning channel is provided with an overflow electric gate and an overflow pipe, and the front control flow channel and the overrunning channel pass through Whether the electric gate in front of the overtaking canal is connected or not, and whether the rear control flow channel and the overtaking canal are connected through the electric gate behind the overtaking canal. The invention effectively realizes the flow regulation and flow control of sewage, avoids the risk of flooding of the buried sewage plant, and ensures the safe operation of the buried sewage plant.

Description

A flow regulation and flow control device suitable for the front end of a buried sewage plant

technical field

The invention belongs to the technical field of sewage treatment, and in particular relates to a flow regulation and flow control device suitable for the front end of a buried sewage plant.

Background technique

The development of sewage treatment plants in China can be simply divided into three stages: starting from scratch, stamping and deodorizing, and starting to "go to the ground".

Stage 1: The sewage treatment plant is developed from scratch. From 1920 to 2000, sewage treatment plants in my country started from scratch, and developed from primary treatment to secondary treatment. The sites were generally located in the suburbs far away from the city, and the problem of odor has not been paid attention to for a long time.

Stage 2: The sewage treatment plant is covered with a deodorization stage. From 2000 to 2010, the sewage treatment industry developed rapidly, and urbanization turned the sewage treatment plants located in the suburbs into the city center. In the construction, expansion or renovation of sewage treatment plants, the pool body was covered and deodorized became a basic requirement. , the factory environment has been improved to a certain extent, but the odor problem has not been fundamentally solved, and the ground landscape environment has not received enough attention.

Stage 3: The sewage treatment plant begins the "underground" stage. After 2010, with the completion and operation of the first fully underground MBR sewage treatment plant in my country, the Guangzhou Jingxi Underground Water Purification Plant, the underground sewage treatment plants in various places began to develop rapidly. The traditional image of the sewage treatment plant, which is full of odor, noise and full of sewage pools, began to integrate into the city center, and its ground garden-like environment completely solved the incompatibility between the traditional sewage treatment plant and the urban living environment. question.

Under the background of rapid urbanization, increasingly scarce urban land, and higher and higher environmental requirements, buried sewage plants show more and more significant advantages in terms of land saving and environmental friendliness. The main production structures of the buried sewage treatment plant are located in the underground space, and the whole or part of the treatment structures and auxiliary buildings are located in the space below the ground. , roads, parks or green landscapes and other uses. For the pool body, the design is usually called "double-layered cover", that is, the pool body is covered to meet the deodorization requirements, and the maintenance space of the pool surface is covered and isolated from the ground to create a good ground environment. The daily on-site operation and maintenance are mainly in the underground space. Operators can often conduct daily inspections, operations and maintenance in the underground space and other production activities. The typical form of its vertical section is generally divided into three layers: the second underground layer (the tank body layer of the sewage treatment structure), the first underground layer (the surface layer of the treatment tank, the production auxiliary building layer, the production operation management space layer), the ground layer ( other uses on the ground).

The buried sewage plant is deeply buried underground, and the operation layer is located 8m-10m below the ground, so the risk of flooding is high. The main risk sources are: 1. Flood broke out, and the water level was higher than the operation layer; 2. A large amount of rainwater entered the sewage pipe network in the rainy season, causing the sewage volume to double, and the buried sewage plant could not consume the sewage in time; 3. The equipment in the plant failed, resulting in shutdown. It cannot prevent the sewage from entering the sewage treatment plant in time. At present, in order to prevent the buried sewage plant from being flooded, gates are often installed at the sewage inlet of the buried sewage plant to regulate the flow of sewage.

Prior art 1: The flow regulation and flow control technology of the wall-attached ordinary electric gate: an electric gate is set on the wall at the entrance of the sewage into the buried sewage plant, and the electric gate is opened and closed by the liquid level control feedback signal to realize the control of the electric gate. Flow control of influent water in sewage treatment plants.

The main disadvantages of the prior art 1:

1. The time interval between receiving the signal and executing the opening and closing of the wall-mounted ordinary electric gate is relatively long, about 1-3 minutes. The timeliness of flow regulation and control of sewage is poor, and the risk of sewage overflow is high.

2. The wall-mounted ordinary electric gate is in the reverse force mode, and the long-term operation failure rate is high. There is only one gate for protection, and the risk factor is high.

3. The wall-mounted ordinary electric gate has poor regulation effect on sewage, and cannot effectively adjust the operating water level.

Existing technology 2: flow regulation and control technology of wall-attached quick-closing gates: electric or pneumatic quick-closing gates are set on the wall at the entrance of sewage into the buried sewage plant, and the opening and closing of the quick-closing gates is controlled by the feedback of liquid level. To achieve flow control of sewage. The quick-closing gate has a fast response time from receiving the signal to the execution of opening and closing, about 10-30 seconds, which can effectively avoid the risk of sewage overflow.

The main disadvantages of the prior art 2:

1. The wall-attached quick-closing gate is in the reverse force mode, and the long-term operation failure rate is high.

2. The wall-attached quick-closing gate has poor regulating effect on sewage and cannot effectively adjust the operating water level.

3. There is only one quick-closing gate for protection, and the risk factor is relatively high.

SUMMARY OF THE INVENTION

The present invention provides a flow regulation and flow control device suitable for the front end of a buried sewage plant to solve the following problems: 1. To solve the problem that the flow regulation effect of the ordinary gate is poor, and the ordinary gate can only adjust the flow by opening and closing the gate up and down. , can not effectively adjust the operating water level; 2. Solve the problem of overflow risk with only one protective gate, and once the equipment fails, the sewage plant will be overflowed; 3. Solve the reverse force of the gate attached to the wall, easy to 4. Solve the problem of poor timeliness of flow regulation and flow control of ordinary gates.

In order to achieve the above object, the present invention adopts the following technical solutions:

A flow regulation and flow control device suitable for the front end of a buried sewage plant, comprising:

A front control channel, which is provided with a current control electric gate, an electric gate beyond the front of the channel, and a water inlet pipe;

A flow regulating channel, which is provided with a regulating weir gate, and whether the front control channel and the flow regulating channel are connected through a current-control electric gate are controlled;

The rear control channel is provided with an electric gate and a water outlet pipe beyond the rear of the channel, the regulating weir gate is located between the regulating channel and the rear regulating channel, and the regulating channel adjusts the operation in the regulating channel through the regulating weir gate water level;

The overtaking canal is provided with an overflow electric gate and an overflow pipe, the front control flow canal and the overrunning canal are controlled by the electric gate in front of the overrunning canal, and the rear control flow conduit and the overrunning canal are controlled by the electric gate behind the overrunning canal. is connected.

As a further description of the above technical solution: the flow adjustment channel is provided with a flow adjustment channel level gauge.

As a further description of the above technical solution: the water outlet pipe is connected to a buried sewage treatment plant.

As a further description of the above technical solution: a quick-closing gate of the underground sewage plant is arranged between the water outlet pipe and the underground sewage plant.

As a further description of the above technical solution: the rear flow control channel is provided with a flow control channel level gauge and a pneumatic quick-closing gate.

As a further description of the above technical solution: the pneumatic quick-closing gate is arranged at the water outlet pipe to control whether the sewage in the rear control channel enters the water outlet pipe.

As a further description of the above technical solution: the flow regulation and flow control device further comprises an operation platform cavity, and an inspection port is provided at the upper end of the operation platform cavity.

As a further description of the above technical solution: the overtaking canal is provided with an inspection ladder extending into the interior at the inspection port.

The present invention has the following beneficial effects:

By adjusting the scientific combination of weir gates, common gates and quick-closing gates, the flow regulation and flow control of sewage can be effectively realized. The double insurance combination of the quick-closing gate can avoid the risk of flooding of the buried sewage plant and ensure the safe operation of the buried sewage plant. Adjusting the weir gate can realize the adjustment of the operating water level of the pretreatment section of the buried sewage plant and ensure the good operation of the buried sewage plant; in addition, when the local buried sewage plant needs to distribute water evenly in the near and long term, the flow diversion channel of the present invention is provided with two The electric adjustment weir gate can also realize uniform water distribution. The combination of ordinary gates and quick-closing gates can achieve overrunning of the diversion channel and overflow of excess sewage, and also ensure the safety of the flow regulation and flow control well itself. To sum up, the present invention has significant beneficial effects.

Description of drawings

1 is a schematic structural diagram of a flow regulation and flow control device suitable for the front end of a buried sewage plant provided by the present invention;

Fig. 2 is a sectional view of low liquid level operation 1-1 of a flow regulating and flow control device suitable for the front end of a buried sewage plant provided by the present invention;

3 is a sectional view of a high liquid level operation 1-1 of a flow regulating and flow control device suitable for the front end of a buried sewage plant provided by the present invention;

4 is a cross-sectional view of the operation 1-1 beyond the flow adjustment channel of a flow adjustment and flow control device suitable for the front end of a buried sewage treatment plant provided by the present invention;

Fig. 5 is a cross-sectional view of the double-safety quick-closing operation 1-1 of a flow regulating and flow control device suitable for the front end of a buried sewage treatment plant provided by the present invention.

Description of drawings:

1-water inlet pipe, 2-flow control electric gate, 3-flow regulating channel level gauge, 4-regulating weir gate, 5-flow control channel level gauge, 6-pneumatic quick-closing gate, 7-water outlet pipe, 8- Buried sewage plant quick-closing gate, 9-going beyond the front electric gate, 10-going beyond the back electric gate, 11-overflow electric gate, 12-overflow pipe, 13-flow regulation and flow control device, 14-maintenance ladder, 15- Maintenance port, 16- Buried sewage plant.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

1-5, an embodiment provided by the present invention is a flow regulation and flow control device 13 suitable for the front end of a buried sewage treatment plant, including a front flow control channel, a flow regulation channel, a rear flow control channel and a transcendence channel.

The front flow control channel is provided with a flow control electric gate 2 and an electric gate 9 in front of the overrunning channel, and a water inlet pipe 1 is arranged at the front end thereof, and the water inlet pipe 1 introduces sewage.

The flow adjustment channel is provided with an adjustment weir gate 4 and a flow adjustment channel liquid level gauge 3 , and the front control flow channel and the flow adjustment channel are connected through a flow control electric gate 2 to control whether they are connected.

The rear control channel is provided with a control channel level gauge 5, a pneumatic quick-closing gate 6 and an electric gate 10 behind the canal, and its rear end is provided with a water outlet 7, which is connected to the buried sewage plant 16, and the pneumatic quick-closing gate 6 is arranged at the outlet pipe 7 to control whether the sewage in the rear control channel enters the outlet pipe 7; the regulating weir gate 4 is located between the regulating channel and the rear control channel, and the regulating channel passes through the regulating weir gate 4 The up-and-down movement adjusts the operating water level in the flow adjustment channel, which in turn affects the operating water level in the rear control channel and the buried sewage plant 16 .

The overrunning channel is provided with an overflow electric gate 11 and an overflow pipe 12. The front control flow channel and the overrun channel are controlled by the electric gate 9 in front of the overrun channel, and the rear control flow channel and the overrun channel are controlled by the electric gate 10 behind the overrun channel. .

Between the outlet pipe and the underground sewage plant, there is a quick-closing gate 8 of the underground sewage plant, and the connection between the rear control channel and the underground sewage plant is controlled through the pneumatic quick-closing gate 6 and the quick-closing gate 8 of the underground sewage plant. Double insurance effect. During normal operation, the two quick-closing gates are in the open state. Only when the amount of sewage surges, the pneumatic quick-closing gate 6 will preferentially close the gate after the warning water level is exceeded, and the quick-closing gate 8 of the buried sewage plant acts as a spare tire.

The flow regulation and flow control device 13 also includes an operation platform cavity, the upper end of the operation platform cavity is provided with an inspection port 15, and an inspection ladder 14 extending into the interior of the overpass canal is provided at the inspection port 15 for easy inspection.

By adjusting the scientific combination of the weir gate and the quick-closing gate, the flow regulation and flow control of the sewage can be effectively realized, avoiding the risk of flooding of the buried sewage plant, and ensuring the safe operation of the buried sewage plant.

Working status:

Under normal circumstances, the electric gate 9 in front of the canal is normally closed, the electric gate 10 after the canal is in a normally closed state, the pneumatic quick-closing gate 6 is in a normally open state, and the overflow electric gate 11 is in a normally closed state.

The sewage enters the front control channel after passing through the water inlet pipe 1, where the flow control electric gate 2 can control the size of the sewage flow by opening and closing and the size of the opening. After the sewage enters the flow adjustment channel through the front control channel, the flow adjustment channel feeds back the liquid level signal to the control system through the liquid level gauge 3 of the flow adjustment channel, and the control system combines the liquid level operation signal of the buried sewage plant to control the electric adjustment weir gate. 4. Adjust the operating water level within a certain range, so as to achieve the purpose of flow regulation, which is more conducive to the good operation of the buried sewage plant. After the sewage enters the rear control channel through the flow adjustment channel, the liquid level gauge 5 of the control channel controls the opening and closing of the pneumatic quick-closing gate 6 according to the liquid level of the rear control channel. When the warning liquid level is exceeded, the pneumatic quick-closing gate 6 6 is completely closed to prevent sewage from entering the buried sewage plant and ensure that the buried sewage plant is not submerged. At the same time, open the overflow electric gate 11 of the overflow channel, so that the excess sewage overflows. The sewage enters the front end of the buried sewage treatment plant after passing through the outlet pipe 7 of the flow regulating and flow control well. Normally, the quick closing gate 8 of the underground sewage treatment plant is in a normally open state. When the pneumatic quick closing gate 6 fails, the underground sewage treatment plant can be activated. The inner quick-closing gate 8 plays the role of double insurance. When the diversion channel equipment fails, the flow control electric gate 2 can be closed, and the first cross-canal electric gate 9 and the second cross-canal electric gate 10 can be opened at the same time. . At this time, the maintenance work of the diversion channel can be done.

Finally, it should be noted that the above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the The technical solutions described in the foregoing embodiments can be modified, or some technical features thereof can be equivalently replaced, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included. within the protection scope of the present invention.

Claims (8)

1. A flow regulating and controlling device suitable for the front end of an underground sewage plant is characterized by comprising:

the front flow control channel is provided with a flow control electric gate (2), a front overrunning channel electric gate (9) and a water inlet pipe (1);

the flow regulating channel is provided with a regulating weir gate (4), and the front flow control channel and the flow regulating channel are controlled to be communicated or not through a flow control electric gate (2);

the rear flow control channel is provided with an electric gate (10) and a water outlet pipe (7) behind the overtaking channel, the adjusting weir gate (4) is positioned between the flow adjusting channel and the rear flow control channel, and the flow adjusting channel adjusts the operating water level in the flow adjusting channel through the adjusting weir gate (4);

the front flow control channel is communicated with the surmounting channel through a front electric gate (9) of the surmounting channel, and the rear flow control channel is communicated with the surmounting channel through a rear electric gate (10) of the surmounting channel.

2. The flow regulating and controlling device according to claim 1, characterized in that the flow regulating channel is provided with a flow regulating channel level gauge (3).

3. A flow regulating and control device according to claim 1, characterised in that said outlet pipe (7) is connected to a buried sewage plant.

4. The flow regulating and controlling device according to claim 3, characterized in that a buried sewage plant quick-closing gate (8) is arranged between the outlet pipe and the buried sewage plant (16).

5. The flow regulating and controlling device according to claim 4, characterized in that the rear flow control channel is provided with a flow control channel liquid level meter (5) and a pneumatic quick-closing gate (6).

6. The flow regulating and controlling device according to claim 5, characterized in that the pneumatic quick-closing gate (6) is arranged at the water outlet pipe (7) to control whether the sewage in the rear flow control channel enters the water outlet pipe (7).

7. The flow regulating and controlling device according to any one of claims 1-6, further comprising an operation platform chamber, wherein the upper end of the operation platform chamber is provided with an access opening (15).

8. A flow regulating and controlling device according to claim 7, characterized in that the overtaking channel is provided with an access ladder (14) extending into the interior at an access opening (15).

Images