CN215950489U - Backflow-preventing check valve - Google Patents
Backflow-preventing check valve Download PDFInfo
- Publication number
- CN215950489U CN215950489U CN202122557985.6U CN202122557985U CN215950489U CN 215950489 U CN215950489 U CN 215950489U CN 202122557985 U CN202122557985 U CN 202122557985U CN 215950489 U CN215950489 U CN 215950489U
- Authority
- CN
- China
- Prior art keywords
- cavity
- channel
- diaphragm control
- communicated
- water
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Fluid-Driven Valves (AREA)
Abstract
The utility model provides a backflow prevention check valve which comprises a valve body and a valve clack, wherein the valve body is provided with a water inlet cavity and a water outlet cavity; the water inlet cavity is communicated with the urban water supply upstream pipeline, the water outlet cavity is communicated with the urban water supply downstream pipeline, the bottom of the valve body is provided with a backflow prevention monitoring device, and the backflow prevention monitoring device is connected with the urban water supply main control system. According to the utility model, through the wireless connection of the backflow prevention monitoring device and the urban water supply main control system, when the backflow situation of the urban water supply pipeline is monitored and found, an alarm can be sent to the urban water supply main control system in time; the utility model has simple structure and low cost.
Description
Technical Field
The utility model belongs to the field of valves, and particularly relates to a backflow prevention check valve.
Background
In the existing urban water supply network, a check valve is usually installed in an urban water supply pipeline to open and close the pipeline, pollution backflow generated when the pressure of the downstream of urban water supply is greater than that of the upstream of urban water supply can be prevented, and the check valve can block water supply backflow by means of the structure of the check valve when the pollution backflow occurs; but besides, the check valve can not timely send a backflow pollution diffusion alarm to the urban water supply main control system.
Disclosure of Invention
The utility model aims to provide a backflow prevention check valve which can automatically monitor the pollution backflow situation, send out an alarm and close in time.
In order to achieve the purpose, the technical scheme of the utility model is realized as follows:
a backflow prevention check valve comprises a valve body provided with a water inlet cavity and a water outlet cavity, and a valve clack arranged in the valve body and provided with a hinge structure; the water inlet cavity is communicated with the urban water supply upstream pipeline, the water outlet cavity is communicated with the urban water supply downstream pipeline, the bottom of the valve body is provided with a backflow prevention monitoring device, and the backflow prevention monitoring device is connected with the urban water supply main control system.
Furthermore, the backflow prevention monitoring device comprises a water pressure detection structure, a flow sensor and an information box; the water pressure detection structure comprises a body, and a diaphragm control cavity, a diaphragm control upper cavity channel, a steamed bun slice control lower cavity channel and a water drainage channel which are arranged in the body; a sealing diaphragm is arranged in the diaphragm control cavity and divides the diaphragm control cavity into a diaphragm control upper cavity and a diaphragm control lower cavity; the diaphragm control upper cavity is communicated with the diaphragm control upper cavity channel, and the diaphragm control upper cavity channel is communicated with the water inlet cavity; the diaphragm control lower cavity is communicated with the diaphragm control lower cavity channel, and the diaphragm control lower cavity channel is communicated with the water outlet cavity; the water drainage channel is communicated with the bottom of the diaphragm control lower cavity; the flow sensor is arranged on the drainage channel and used for detecting whether the drainage channel has flow; the flow sensor circuit is connected with the information box and sends detection information to the information box, the information box comprises a processor module, a power supply module and a network module, the flow sensor circuit is connected with the processor module, the processor module is wirelessly connected with a city water supply main control system through the network module, and the power supply module is connected with the processor module and used for supplying power.
Furthermore, a first channel is formed at one side of the water inlet cavity and a second channel is formed at one side of the water outlet cavity at the bottom of the valve body; the first channel is communicated with the water inlet cavity and the diaphragm control upper cavity channel; the second channel is communicated with the water outlet cavity and the diaphragm control lower cavity channel.
Further, the network module is one or more of WIFI, GPRS, 4G, 5G, ZigBee, LoRa and NB-IoT.
Furthermore, the urban water supply main control system is in wireless connection with the emergency management mobile terminal.
Compared with the prior art, the utility model has the following beneficial effects:
(1) according to the utility model, through the wireless connection of the backflow prevention monitoring device and the urban water supply main control system, when the backflow situation of the urban water supply pipeline is monitored and found, an alarm can be sent to the urban water supply main control system in time;
(2) the water pressure detection structure used in the backflow prevention monitoring device is realized through the structures of the diaphragm control cavity and the water drainage channel, so that the complex monitoring device is avoided, the structure is simple, the cost is low, and the detection effect is good.
Drawings
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
fig. 2 is a schematic structural diagram of the information box in the embodiment of the present invention.
Wherein:
1. a valve body; 2. a valve flap; 3. an urban water supply upstream pipeline; 4. a city water supply downstream pipeline;
5. a first channel; 6. a second channel; 7. the diaphragm controls the upper cavity channel; 8. the diaphragm controls the lower cavity channel;
9. the diaphragm controls the upper cavity; 10. the diaphragm controls the lower cavity; 11. sealing the membrane; 12. a drainage channel;
13. a flow sensor; 14. an information box; 15. a main urban water supply control system; 16. and (5) emergency management of the mobile terminal.
Detailed Description
It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
As shown in figures 1 and 2, the utility model is provided with a water inlet cavity and a water outlet cavity in a valve body 1, a valve clack 2 with a hinge structure is also arranged in the valve body 1, and the valve clack 2 can be opened by the hinge structure; the water inlet cavity is communicated with a city water supply upstream pipeline 3, the water outlet cavity is communicated with a city water supply downstream pipeline 4, a first channel 5 is formed in one side of the water inlet cavity at the bottom of the valve body 1, and a second channel 6 is formed in one side of the water outlet cavity; the bottom of the valve body 1 is provided with a backflow prevention monitoring device which comprises a water pressure detection structure, a flow sensor 13 and an information box 14; the water pressure detection structure comprises a body, and a diaphragm control cavity, a diaphragm control upper cavity channel 7, a steamed bun slice control lower cavity channel 8 and a water drainage channel 12 which are arranged in the body; a sealing diaphragm 11 is arranged in the diaphragm control cavity, and the diaphragm control cavity is divided into a diaphragm control upper cavity 9 and a diaphragm control lower cavity 10 by the sealing diaphragm 11; the diaphragm control upper cavity 9 is communicated with the diaphragm control upper cavity channel 7, the diaphragm control upper cavity channel 7 is communicated with the first channel 5, and the first channel 5 is communicated with the water inlet cavity; the diaphragm control lower cavity 10 is communicated with the diaphragm control lower cavity channel 8, and the diaphragm control lower cavity channel 8 is communicated with the water outlet cavity; the water drainage channel 12 is communicated with the bottom of the diaphragm control lower cavity 10; the flow sensor 13 is installed in the drainage channel 12 and used for detecting whether the drainage channel has flow; the flow sensor 13 is connected with the information box 14 through a circuit and sends detection information to the information box 14, the information box 14 comprises a processor module, a power supply module and a network module, and the power supply module is connected with the processor module and used for supplying power; the processor module is provided with a sensor interface and is used for the flow sensor 13 to be in line connection with the processor module and send monitoring information, the processor module is in wireless connection with the urban water supply main control system 15 through the network module, and the urban water supply main control system 15 is in wireless connection with the emergency management mobile terminal 16.
The network module is a wireless network module and can be one or more of WIFI, GPRS, 4G, 5G, ZigBee, LoRa and NB-IoT.
The working principle of the utility model is as follows:
and (3) normal operation state: urban water supply upstream pipeline 3 (high pressure) → backflow prevention check valve → urban water supply downstream pipeline 4 (low pressure), at this time, diaphragm control upper cavity channel 7 (pressurized water) → diaphragm control upper cavity 9 (pressurized water pressure is high), is higher than diaphragm control lower cavity channel 8 (low pressure water) → diaphragm control lower cavity 10 (low pressure water); the diaphragm control upper chamber 9 presses the sealing diaphragm 11 → the opening of the sealed drain passage 12 → blocks the diaphragm control lower chamber passage 8 (low pressure water) → the diaphragm control lower chamber 10 (low pressure water) → flow to the drain passage 12 → at this time the backflow prevention check valve normally operates; no water drainage occurs → the flow sensor 13 (no water flow signal is sent) → the information box 14 (will prevent the backflow check valve normal water supply network working state data) → the city water supply main control system 15 (will store data and provide so that data analysis and management at any time) → the emergency management mobile terminal 16 (interconnection and intercommunication, sharing application of water supply monitoring information);
pollution backflow generation state: urban water supply downstream pipeline 4 (high pressure) → backflow prevention check valve → urban water supply upstream pipeline 3 (low pressure), and at this time diaphragm control lower cavity channel 8 (pressurized water) → diaphragm control lower cavity 10 (pressurized water high pressure), is higher than diaphragm control upper cavity channel 7 (low pressure water) → diaphragm control upper cavity 9 (low pressure water); the diaphragm control lower cavity 10 jacks up the sealing diaphragm 11 → the sealing port of the water discharge channel 12 is opened → the diaphragm control lower cavity channel 8 (pressure water) → the diaphragm control lower cavity 10 (pressure water) → flowing to the water discharge channel 12 → polluted water flows out from the opening of the water discharge channel 12 → the flow sensor 13 (water flow signal is sent) → the information box 14 → at this time, the check valve is closed emergently under the condition that the urban water supply downstream pipeline 4 (high pressure); meanwhile, the working state data of the backflow prevention check valve → the city water supply main control system 15 (stores the data and gives an alarm of backflow pollution diffusion) → the emergency management mobile terminal 16 (a city manager can give an emergency instruction to inform an emergency treatment executor of field treatment).
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. A backflow prevention check valve is characterized by comprising a valve body and a valve clack, wherein the valve body is provided with a water inlet cavity and a water outlet cavity, and the valve clack is arranged in the valve body and is provided with a hinge structure; the water inlet cavity is communicated with the urban water supply upstream pipeline, the water outlet cavity is communicated with the urban water supply downstream pipeline, the bottom of the valve body is provided with a backflow prevention monitoring device, and the backflow prevention monitoring device is connected with the urban water supply main control system.
2. The backflow prevention check valve as recited in claim 1, wherein the backflow prevention monitoring device comprises a water pressure detection structure, a flow sensor, an information box; the water pressure detection structure comprises a body, and a diaphragm control cavity, a diaphragm control upper cavity channel, a steamed bun slice control lower cavity channel and a water drainage channel which are arranged in the body; a sealing diaphragm is arranged in the diaphragm control cavity and divides the diaphragm control cavity into a diaphragm control upper cavity and a diaphragm control lower cavity; the diaphragm control upper cavity is communicated with the diaphragm control upper cavity channel, and the diaphragm control upper cavity channel is communicated with the water inlet cavity; the diaphragm control lower cavity is communicated with the diaphragm control lower cavity channel, and the diaphragm control lower cavity channel is communicated with the water outlet cavity; the water drainage channel is communicated with the bottom of the diaphragm control lower cavity; the flow sensor is arranged on the drainage channel and used for detecting whether the drainage channel has flow; the flow sensor circuit is connected with the information box and sends detection information to the information box, the information box comprises a processor module, a power supply module and a network module, the flow sensor circuit is connected with the processor module, the processor module is wirelessly connected with a city water supply main control system through the network module, and the power supply module is connected with the processor module and used for supplying power.
3. The backflow prevention check valve as recited in claim 2, wherein the bottom of the valve body is provided with a first channel on one side of the water inlet chamber and a second channel on one side of the water outlet chamber; the first channel is communicated with the water inlet cavity and the diaphragm control upper cavity channel; the second channel is communicated with the water outlet cavity and the diaphragm control lower cavity channel.
4. The backflow prevention check valve as recited in claim 2, wherein the network module is one or more of WIFI, GPRS, 4G, 5G, ZigBee, LoRa, NB-IoT.
5. The backflow prevention check valve as recited in claim 1, wherein the city water main control system is wirelessly connected with an emergency management mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122557985.6U CN215950489U (en) | 2021-10-22 | 2021-10-22 | Backflow-preventing check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122557985.6U CN215950489U (en) | 2021-10-22 | 2021-10-22 | Backflow-preventing check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215950489U true CN215950489U (en) | 2022-03-04 |
Family
ID=80410532
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122557985.6U Active CN215950489U (en) | 2021-10-22 | 2021-10-22 | Backflow-preventing check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215950489U (en) |
-
2021
- 2021-10-22 CN CN202122557985.6U patent/CN215950489U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216045575U (en) | Electronic anti-backflow semi-ball valve | |
| CN215950489U (en) | Backflow-preventing check valve | |
| CN209960222U (en) | Gas pressure regulating metering cabinet capable of monitoring gas leakage in cabinet in real time | |
| CN215950525U (en) | Backflow-preventing electric flow regulating valve | |
| CN215950516U (en) | Electric anti-backflow plug valve | |
| CN216045456U (en) | Electric stop valve with backflow prevention control | |
| CN202812291U (en) | Hydraulic membrane two-way valve | |
| CN217381768U (en) | High-safety backflow prevention device | |
| CN201546258U (en) | Water supply equipment of pump in no-negative-pressure soundproof pipe | |
| CN111577967A (en) | Air fault detection device and application thereof | |
| CN215673697U (en) | Electric ball valve with backflow prevention control function | |
| CN215673630U (en) | Electric butterfly valve with backflow prevention control | |
| CN211523366U (en) | Double-cavity non-negative pressure water supply equipment | |
| CN202746677U (en) | Easy-to-monitor anti-blockage check valve | |
| CN203309249U (en) | Diaphragm type emergency cut-off device | |
| CN210218888U (en) | On-line monitoring backflow preventer | |
| CN212772253U (en) | Device for preventing resonance of pressure steel pipe of hydropower station | |
| CN210979372U (en) | Leakage protection device for household water system | |
| CN213132277U (en) | Intelligent control device for sewage treatment | |
| CN218895514U (en) | Capillary network water leakage monitoring system and central air conditioner assembly | |
| CN215522115U (en) | Pneumatic valve capable of realizing automatic opening and closing by sensing gas pressure change | |
| CN114411170B (en) | Hydrogen production system and method | |
| CN213477034U (en) | Water supply equipment with water inlet pressure stability and water using function without interfering user | |
| CN217331274U (en) | A waterproof stifled structure for gas table | |
| CN218091080U (en) | Variable flow fire-fighting pressure stabilizer with measurement and control integrated function |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |