CN214846398U

CN214846398U - Initial rainwater discarding control device

Info

Publication number: CN214846398U
Application number: CN202121124943.7U
Authority: CN
Inventors: 刘佩贵; 潘继隆; 尚熳廷; 宋军军; 王静峰; 王凯; 于竞宇; 王宗圣; 康谨之
Original assignee: Hefei University of Technology
Current assignee: Hefei University of Technology
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2021-11-23
Anticipated expiration: 2031-05-24

Abstract

The utility model belongs to rainwater comprehensive utilization field, concretely relates to initial stage rainwater abandons a class controlling means. The device comprises a water tank for collecting rainwater, a pretreatment water tank for pretreating the rainwater, a flow distribution box for distributing the rainwater, and a flow distribution control unit for recycling or discarding the rainwater according to water quality monitoring indexes. The device takes the water quality index as a standard for judging rainwater collection or drainage, realizes full-automatic control of the device, can collect rainwater to the maximum extent, improves the rainwater utilization rate, ensures the quality of the collected rainwater, and can timely adjust the rainwater drainage water quality index according to the rainwater recycling purpose or the recycling water quality requirement. The whole device realizes full automation, does not need manual control, and saves a large amount of manpower and financial resources.

Description

Initial rainwater discarding control device

Technical Field

The application relates to the field of comprehensive utilization of rainwater, in particular to a primary rainwater flow discarding control device.

Background

The initial rainwater flows through the atmosphere and washes the water collecting surface, inevitably makes some indexes exceed standard in the initial rainwater, especially road rainwater pollutant that exceeds standard is more, leads to initial rainwater quality of water relatively poor. The aim of realizing the reuse of rainwater is to effectively separate initial rainwater with heavy pollution from cleaner middle and later rainwater.

At present, most of rainwater discarding devices used at home and abroad take rainfall or rainfall duration as a control condition to judge whether to discard rainwater, and the starting point of rainwater collection and reuse in practical engineering is that the rainwater quality is relatively excellent, and if the rainfall or rainfall duration is taken as the condition of rainwater discarding at the initial stage, the problems of water waste or substandard collected rainwater and the like are easily caused, and the rainwater reuse is influenced. On the other hand, most of the existing initial rainwater discarding devices are semi-automatic, manual control of opening or closing of the devices is needed, automatic discarding or collection along with rainwater quality change cannot be achieved, and the automation degree is low; and the device design is complicated, and operation and maintenance and management in the later period are inconvenient.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art and regard as the waste or the quality of water that judge the standard that whether the rainwater abandons the flow with rainfall water or rainfall duration and exist the water yield not up to standard, collect with the retrieval and utilization target disjointed with actual rainwater, and the automatic weak point of existing equipment provides one kind and abandons the flow and the device of collection automatically according to quality of water control standard, full-automatic realization rainwater.

In order to solve the technical problem of the utility model, the technical proposal is that the initial rainwater discarding control device comprises a pretreatment water tank, a shunt tank and a shunt control unit which are connected with a rainwater inlet pipe in sequence;

the pretreatment water tank comprises a filtering area horizontally arranged with the rainwater inlet pipe and a settling area positioned below the filtering area, and a trash rack is radially arranged on a pipeline connecting the filtering area and the flow dividing tank;

the bottom of the box body of the flow distribution box is respectively provided with a flow outlet for discharging clean rainwater and a flow discarding port for discharging initial rainwater;

the shunt control unit comprises a liquid flow sensor, a water quality detector probe and a PLC controller, wherein the liquid flow sensor, the water quality detector probe and the PLC controller are arranged on a pipeline of the shunt box and connected with the filtering area, the PLC controller is connected with the liquid flow sensor and the water quality detector probe through signal lines, and the PLC controller is electrically connected with the outflow port and the abandoning port and used for controlling the opening and closing of the outflow port and the abandoning port.

As the further improvement of the initial rainwater discarding control device:

preferably, the outflow opening is provided with a first electromagnet, the abandoning opening is provided with a second electromagnet, a first permanent electromagnet and a second permanent electromagnet which can move up and down are arranged in the box body of the flow dividing box, the PLC is electrically connected with the first electromagnet and the second electromagnet, the first permanent electromagnet is in two states of being connected with the first electromagnet to seal the outflow opening or being separated from the first electromagnet to open the outflow opening, and the second permanent electromagnet is in two states of being connected with the second electromagnet to seal the outflow opening or being separated from the second electromagnet to open the outflow opening.

Preferably, a first limiting rod and a second limiting rod are vertically arranged at positions corresponding to the outflow port and the flow abandoning port in the flow dividing box respectively, the first permanent electromagnet slides on the first limiting rod, and the second permanent electromagnet slides on the second limiting rod.

Preferably, the pipeline between the rainwater inlet pipe and the pretreatment water tank is arranged to be in a flaring shape with gradually increasing openings.

Preferably, a plug matched with the outflow port is arranged below the first permanent electromagnet, and a plug matched with the flow abandoning port is arranged below the second permanent electromagnet.

Preferably, the model of the liquid flow sensor is Laiende LD-SW, and the model of the water quality detector probe is Hash HQ40 d.

The utility model discloses compare prior art's beneficial effect and lie in:

1. most of the existing flow discarding devices discard the rainwater according to the initial rainwater amount, and the initial rainwater amount has a great relation with the geographical position and the rainfall amount, so that the initial rainwater amount is difficult to control and does not have universality; the utility model discloses the device abandons a class to initial stage rainwater according to quality of water, can accurately judge the water yield of initial stage rainwater according to quality of water, can not cause initial stage rainwater to pollute clean rainwater, also can not cause a large amount of wastes of clean rainwater.

2. Most of the existing devices are manually controlled or semi-automatically controlled, and the purpose of discarding the rainwater is achieved by manually controlling a switch after the water quantity of initial rainwater is observed through a liquid level sensor or the water quality is detected through a probe of a water quality detector; and the utility model discloses the device has abandoned in the past floater formula, full automatic switch modes such as lever, adopts the electro-magnet circular telegram and permanent magnet repulsion's principle at the same level mutually, realizes that the device starts, detects quality of water and control switch's full automatic control and abandons/the accurate closure of outfall.

3. A water tank with a large floor area needs to be separately built in the flow discarding pool of some flow discarding devices, the water tank has the main task of storing rainwater, then the quality of the rainwater in the water tank is manually detected, and if the quality is not qualified, the rainwater needs to be purified; and the utility model discloses whether the device passes through quality of water and differentiates the rainwater up to standard, does not need to discharge earlier and abandons class pond and detect quality of water again, and the device is small.

4. The initial rainwater discharge port can be connected with a sewage pipeline and sewage mixed flow and then enters a sewage treatment plant, and can also be connected with a special initial rainwater purification system and then enters a rainwater pipe network or a PP module for storage after purification; the outlet can be connected with a rainwater pipe network and a PP module so as to realize the comprehensive utilization of clean rainwater and provide a foundation for the diversified treatment in the later stage.

Drawings

FIG. 1 is a structural diagram of the initial rainwater drainage control device of the present invention;

the designations in the drawings have the following meanings:

1. a rainwater inlet pipe; 2. a pretreatment water tank; 21. a filtration zone; 22. a settling zone; 23. a trash rack; 3. a shunt box; 4. an outflow port; 5. a flow abandoning port; 6. a liquid flow sensor; 7. a water quality detector probe; 8. a PLC controller; 9. a first electromagnet; 10. a second electromagnet; 11. a first permanent electromagnet; 12. a second permanent electromagnet; 13. a first limit rod; 14. a second limiting rod.

Detailed Description

In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the following embodiments are combined to further explain the present invention in detail, based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative work belong to the scope of the present invention.

Example 1

As shown in fig. 1, an initial rainwater discarding control device comprises a pretreatment water tank 2 and a diversion tank 3 which are sequentially connected with a rainwater inlet pipe 1, and a diversion control unit; the pipeline between the rainwater inlet pipe 1 and the pretreatment water tank 2 is in a flaring shape with gradually enlarged openings, so that the impact force of rainwater can be relieved; the pretreatment water tank 2 comprises a filtering area 21 horizontally arranged with the rainwater inlet pipe 1 and a settling area 22 positioned below the filtering area 21, and a trash rack 23 is radially arranged on a pipeline connecting the filtering area 21 and the flow dividing tank 3;

the bottom of the box body of the flow distribution box 3 is respectively provided with an outflow port 4 for discharging clean rainwater and a drainage port 5 for discharging initial rainwater; a first electromagnet 9 is arranged at the position of the outlet 4, a second electromagnet 10 is arranged at the position of the flow abandoning port 5, a plug matched with the outlet 4 is arranged below the first electromagnet 9, and a plug matched with the flow abandoning port 5 is arranged below the second electromagnet 10; a first limiting rod 13 and a second limiting rod 14 are vertically arranged at the positions, corresponding to the outflow port 4 and the flow abandoning port 5, on the top of the inner box of the flow dividing box 3 respectively; a first permanent electromagnet 11 capable of sliding up and down is arranged on the first limiting rod 13, a second permanent electromagnet 12 capable of sliding up and down is arranged on the second limiting rod 14, the first permanent electromagnet 11 is in two states of being connected with the first electromagnet 9 to close the outflow port 4 or being separated from the first electromagnet 9 to open the outflow port 4, and the second permanent electromagnet 12 is in two states of being connected with the second electromagnet 10 to close the flow abandoning port 5 or being separated from the second electromagnet 10 to open the flow abandoning port 5.

The flow distribution control unit comprises a liquid flow sensor 6, a water quality detector probe 7 and a PLC 8 which are arranged on a pipeline connecting the filtering area 21 and the flow distribution box 3, the PLC 8 is connected with the liquid flow sensor 6 and the water quality detector probe 7 through signal lines, and the PLC 8 is electrically connected with the outflow port 4 and the flow abandoning port 5 and is used for controlling the opening and closing of the outflow port 4 and the flow abandoning port 5;

example 2

As shown in fig. 1, the initial rainwater drainage control device is not powered when it is not raining, and due to the action of gravity, the first permanent electromagnet 11 and the outflow port 4 are closed, and the second permanent electromagnet 12 and the drainage port 5 are closed; when the rainfall, the rainwater gets into flow distribution box 3 through rainwater inlet tube 1, silt etc. in the rainwater enter into sedimentation zone 22 through subsiding, the floater is got rid of after 23 intercepts through the trash rack, liquid flow sensor 6 detects behind the rainwater with signal transmission to PLC controller 8, whole device circular telegram, PLC controller 8 starts water quality testing appearance probe 7 and begins to detect quality of water, when the rainwater pollutant concentration that detects is less than the standard value, PLC controller 8 opens out flow port 4, closes and abandons flow port 5, specifically do: the PLC 8 is used for electrifying the first electromagnet 9 and not electrifying the second electromagnet 10, the first electromagnet 9 generates magnetism to repel the first permanent electromagnet 11, the first permanent electromagnet 11 moves upwards on the first limiting rod 13, the outflow opening 4 is opened, and clean rainwater is discharged and collected for use; when water quality testing appearance probe 7 detected the pollutant concentration in the rainwater and was less than the standard value, PLC controller 8 closed outlet 4, opened and abandoned a class mouth 5, specifically was: the PLC 8 does not electrify the first electromagnet 9 any more, but electrify the second electromagnet 10, the second electromagnet 10 generates magnetism to repel the second permanent electromagnet 12, the second permanent electromagnet 12 moves upwards on the second limiting rod 14, the flow abandoning port 5 is opened, and rainwater is abandoned; when no rainwater flows through the liquid flow sensor 6, the liquid flow sensor 6 transmits a signal to the PLC 8, and the whole device is powered off.

It will be appreciated by those of ordinary skill in the art that the foregoing is merely illustrative of several embodiments of the present invention and is not an exhaustive list. It should be noted that many variations and modifications are possible to those skilled in the art, and all variations and modifications that do not depart from the scope of the invention as set forth in the claims should be deemed to be a part of the disclosure.

Claims

1. The initial rainwater discarding control device is characterized by comprising a pretreatment water tank (2), a diversion tank (3) and a diversion control unit, wherein the pretreatment water tank and the diversion tank are sequentially connected with a rainwater inlet pipe (1);

the pretreatment water tank (2) comprises a filtering area (21) horizontally arranged with the rainwater inlet pipe (1) and a settling area (22) positioned below the filtering area (21), and a trash rack (23) is radially arranged on a pipeline connecting the filtering area (21) and the flow dividing tank (3);

the bottom of the box body of the flow distribution box (3) is respectively provided with a flow outlet (4) for discharging clean rainwater and a flow discarding port (5) for discharging initial rainwater;

the flow distribution control unit comprises a filter area (21) and a flow sensor (6) and a water quality detector probe (7) and a PLC (8) which are arranged on a pipeline of a flow distribution box (3), wherein the PLC (8) is connected with the flow sensor (6) and the water quality detector probe (7) through signal lines, and the PLC (8) is electrically connected with a flow outlet (4) and a flow abandoning port (5) and is used for controlling the opening and closing of the flow outlet (4) and the flow abandoning port (5).

2. The initial rainwater discarding control device according to claim 1, a first electromagnet (9) is arranged at the outflow port (4), a second electromagnet (10) is arranged at the flow abandoning port (5), the PLC controller (8) is electrically connected with the first electromagnet (9) and the second electromagnet (10), a first permanent electromagnet (11) and a second permanent electromagnet (12) which can move up and down are arranged in the box body of the flow dividing box (3), the first permanent electromagnet (11) is in two states of being connected with the first electromagnet (9) to close the outflow opening (4) or being separated from the first electromagnet (9) to open the outflow opening (4), the second permanent electromagnet (12) is in two states of being connected with the second electromagnet (10) to close the abandon opening (5) or being separated from the second electromagnet (10) to open the abandon opening (5).

3. The initial rainwater flow-discarding control device according to claim 2, wherein a first limiting rod (13) and a second limiting rod (14) are vertically arranged in the diversion box (3) at positions corresponding to the outflow port (4) and the flow-discarding port (5), respectively, the first permanent electromagnet (11) slides on the first limiting rod (13), and the second permanent electromagnet (12) slides on the second limiting rod (14).

4. An initial rainwater discarding control device according to claim 1, wherein the pipe between the rainwater inlet pipe (1) and the pretreatment water tank (2) is provided in a flared shape with an opening gradually increased.

5. An initial rainwater drainage control device according to claim 2 or 3, wherein a plug matched with the outflow port (4) is arranged below the first permanent electromagnet (11), and a plug matched with the drainage port (5) is arranged below the second permanent electromagnet (12).

6. The initial rainwater discarding control device according to claim 1, wherein the liquid flow sensor (6) is of type leinded LD-SW and the water quality detector probe (7) is of type hahq 40 d.