CN209100759U - A kind of backflow preventer - Google Patents
A kind of backflow preventer Download PDFInfo
- Publication number
- CN209100759U CN209100759U CN201822002929.4U CN201822002929U CN209100759U CN 209100759 U CN209100759 U CN 209100759U CN 201822002929 U CN201822002929 U CN 201822002929U CN 209100759 U CN209100759 U CN 209100759U
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- China
- Prior art keywords
- backflow preventer
- drain valve
- communication module
- monitor
- module
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Abstract
The utility model relates to valve technology fields, a kind of backflow preventer is disclosed, including detection module, communication module, monitor, driver and control module, wherein, detection module includes pressure sensor and leakage sensor, pressure sensor is used to detect the pressure of the import of backflow preventer, main chamber and exit, and leakage sensor is for detecting whether drain valve sluices；Communication module is electrically connected with detection module；Monitor is electrically connected with communication module；Driver driving drain valve opens or closes；Control module is electrically connected with communication module and driver respectively.Backflow preventer provided by the utility model, pass through setting pressure sensor and leakage sensor, can pressure to backflow preventer and sluicing situation be measured in real time, and pass through the cooperation with communication module and control module etc., realize the real time monitoring to backflow preventer working condition, to release failure in time, preventing refluence and the expansion of sluicing phenomenon or to occur again.
Description
Technical field
The utility model relates to valve technology field more particularly to a kind of backflow preventers.
Background technique
Backflow preventer is widely used in water supply network, for preventing water supply network from flowing backwards, avoids water supply network
It is polluted by flowing backwards.The sluicing valve group that backflow preventer is usually folded among two check-valves by two check-valves and one
At in the case where backflow preventer works normally, when not flowing backwards, drain valve is in close state, when flowing backwards
Drain valve can open rapidly that water exclusion will be flow backwards, and refluence water is avoided to pollute water supply network.But it is anti-due to flowing backwards
Only device such as breaks down at the reasons, can frequently occur in when not flowing backwards but the case where drain valve is opened, and locates drain valve always
In sluicing state, the waste of water resource is caused, and causes the damage of other relevant devices and is contaminated water supply network.And
Backflow preventer in the prior art not can solve above-mentioned technical problem, cannot find in time backflow preventer there are failure,
To be unfavorable for releasing failure in time, the serious waste of water resource is caused.
Utility model content
Based on the above, the purpose of this utility model is to provide a kind of backflow preventer, can find to flow backwards in time
There are failures for preventer in order to release failure in time, to avoid the waste of water resource.
In order to achieve the above object, the utility model uses following technical scheme:
A kind of backflow preventer, comprising:
Detection module, including pressure sensor and leakage sensor, the pressure sensor are prevented for detecting described flow backwards
The only pressure in the import of device, main chamber and exit, the leakage sensor is for detecting whether drain valve sluices；
Communication module is electrically connected with the detection module；
Monitor is electrically connected with the communication module；
Driver drives the drain valve to open or close；
Control module is electrically connected with the communication module and the driver respectively.
Further, the monitor is used to receive alarm signal and/or the control drain valve of user's input is opened
Or the instruction closed.
Further, the monitor is remote monitor.
Further, the monitor is computer and/or mobile terminal.
The utility model has the following beneficial effects:
Backflow preventer provided by the utility model can be to refluence by setting pressure sensor and leakage sensor
The sluicing situation of the import of preventer, the pressure of main chamber and exit and drain valve is measured in real time, and by with communication
The cooperation of module, monitor, driver and control module realizes the real time monitoring to backflow preventer working condition, and energy
It is enough to send corresponding failure alarm signal in time, to release failure in time, prevent from flowing backwards and the expansion of sluicing phenomenon or again
Occur.
Detailed description of the invention
It, below will be to the utility model embodiment in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing needed in description is briefly described, it should be apparent that, the accompanying drawings in the following description is only that this is practical new
Some embodiments of type for those of ordinary skill in the art without creative efforts, can be with root
Other attached drawings are obtained according to the content of the utility model embodiment and these attached drawings.
Fig. 1 is the cross-sectional view of backflow preventer provided by the embodiment of the utility model；
Fig. 2 is the flow chart of backflow preventer sluicing judgment method provided by the embodiment of the utility model.
In figure:
10- import；20- main chamber；The outlet 30-；
1- drain valve；2- pressure sensor；3- leakage sensor.
Specific embodiment
The technical issues of to solve the utility model, the technical solution of use and the technical effect that reaches are clearer,
It is described in further detail below in conjunction with technical solution of the attached drawing to the utility model embodiment, it is clear that described reality
Applying example is only the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention,
It is practical new to belong to this for those skilled in the art's every other embodiment obtained without making creative work
The range of type protection.
As shown in Figure 1, the present embodiment provides a kind of backflow preventer, including detection module, communication module, monitor, drive
Dynamic device and control module, wherein detection module includes pressure sensor 2 and leakage sensor 3, and pressure sensor 2 is for detecting
Pressure at the import 10 of backflow preventer, main chamber 20 and outlet 30, leakage sensor 3 is for detecting whether drain valve 1 sluices；
Communication module is electrically connected with detection module；Monitor is electrically connected with communication module；Driver driving drain valve 1 opens or closes；
Control module is electrically connected with communication module and driver respectively.
When backflow preventer work, the sluicing situation of 3 real-time detection drain valve 1 of leakage sensor, and pass through communication mould
Sluicing testing result is sent to control module by block, and to judge whether to sluice, while 2 real-time detection of pressure sensor is flow backwards
Pressure at the import 10 of preventer, main chamber 20 and outlet 30, and pressure sensing result is sent to by control by communication module
Module, control module will be made whether to occur to flow backwards judgement according to pressure sensing result, then in conjunction with sluicing judging result and fall
Stream judging result judges whether backflow preventer breaks down.When drain valve 1 sluices, sentenced by judging whether to occur to flow backwards
Whether disconnected is normally to sluice, and when flowing backwards, drain valve 1 sluices to sluice to be normal, sends at this time and flows backwards alarm signal and let out
Water alarm signal, and alarm signal is sent to by monitor by communication module, to notify staff to carry out refluence inspection in time
It looks into, prevent from flowing backwards further expansion or occurs again, so that water supply network be avoided to be contaminated；When not flowing backwards, sluice
It is improper sluicing that valve 1, which sluices, and the drain valve 1 of driver driving at this time is closed, and makes drain valve 1 not continue to sluice, prevents water from providing
The further waste in source, avoids the damage of other relevant devices, while sending backflow preventer failure alarm signal, with logical
Know that staff releases failure in time, prevent drain valve 1 cannot effectively close or it is improper sluicing occur again.When drain valve 1
When not sluicing, judge whether backflow preventer breaks down by judging whether to occur to flow backwards, when flowing backwards, and
Drain valve 1 is not switched on, then judges backflow preventer failure, needs to open drain valve 1 at this time, and sends backflow preventer failure report
Alert signal prevents from flowing backwards and water supply network is caused to be contaminated to notify staff to release failure in time.
Backflow preventer provided in this embodiment can be to refluence by setting pressure sensor 2 and leakage sensor 3
The sluicing situation of pressure and drain valve 1 at the import 10 of preventer, main chamber 20 and outlet 30 is measured in real time, and is passed through
With the cooperation of communication module, monitor, driver and control module, the real-time prison to backflow preventer working condition is realized
Control, and corresponding failure alarm signal can be sent in time, to release failure in time, prevent refluence and the expansion of sluicing phenomenon
Or occur again.
Specifically, three pressure sensors 2 are separately positioned on import, main chamber and the exit of backflow preventer, and leak passes
The discharge opening of drain valve 1 is arranged in sensor.
In the present embodiment, monitor is used to receive alarm signal and/or the control drain valve 1 of user's input plays on or off
The instruction closed, and monitor is remote monitor.Staff can be controlled by remote input instruction drain valve 1 open or
It closes, to release failure in time, to reduce influence caused by failure.Specifically, monitor is that computer and/or movement are whole
End, it is mobile eventually that alarm signal can be sent to computer and/or mobile phone etc. by sound-light alarm mode and/or SMS alarm mode etc.
End.
As shown in Fig. 2, the specific working method of backflow preventer provided in this embodiment is as follows: S1: judging that drain valve 1 is
No sluicing, if so, executing S2；S2: judging whether to flow backwards, if so, executing S3；If it is not, then executing S4；S3: it sends
Alarm signal is flow backwards, while sending sluicing alarm signal；S4: closing drain valve 1, and sends backflow preventer fault alarm letter
Number.
Further, in step sl, judge whether drain valve 1 sluices, if it is not, then executing following steps: judging whether
It flows backwards, if so, judging backflow preventer failure, opens drain valve 1, and send backflow preventer failure alarm signal；
If it is not, then judging that backflow preventer works normally.
Specifically, in step s 2, judge whether that occurring to flow backwards includes: the import 10 for detecting backflow preventer, main chamber 20
With outlet 30 pressure, and successively be labeled as P1, P2 and P3；The value of P1-P2 and P2-P3 is calculated, and the value is successively marked
For Δ P12With Δ P23；Calculate Δ P12With preset value Δ P12' between difference and Δ P23With preset value Δ P23' between difference
Value, and judge Δ P12-ΔP12' and Δ P23-ΔP23' difference whether there is less than 0 the case where, if so, flowing backwards；
If it is not, not flowing backwards then.It should be pointed out that in the present embodiment, since the pressure of detection is analog signals, therefore according to
Secondary label is, before P2 and P3 further include: is converted to the analog signals of pressure detected and represents actual pressure value
Digital quantity signal carries out a series of calculating such as P1-P2 and P2-P3 using digital quantity signal.
Specifically, in step s3, if send refluence alarm signal, sluicing alarm signal is not sent simultaneously, then is judged
Backflow preventer breaks down.In the case where backflow preventer works normally, when drain valve 1 being caused to sluice due to refluence,
It can be simultaneously emitted by refluence and sluicing alarm signal, to inform that drain valve 1 is normal sluices to staff at this time.
In the present embodiment, after the trouble shooting of backflow preventer, drain valve 1 will then revert to normal operating conditions, with
Guarantee that backflow preventer works normally.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright
Aobvious variation, readjustment and substitution is without departing from the protection scope of the utility model.Therefore, although passing through above embodiments
The utility model is described in further detail, but the utility model is not limited only to above embodiments, is not departing from
It can also include more other equivalent embodiments in the case that the utility model is conceived, and the scope of the utility model is by appended
Scope of the claims determine.
Claims (4)
1. a kind of backflow preventer characterized by comprising
Detection module, including pressure sensor (2) and leakage sensor (3), the pressure sensor (2) for detect it is described fall
The pressure at import (10), main chamber (20) and the outlet (30) of preventer is flowed, the leakage sensor (3) is for detecting drain valve
(1) whether sluice；
Communication module is electrically connected with the detection module；
Monitor is electrically connected with the communication module；
Driver drives the drain valve (1) to open or close；
Control module is electrically connected with the communication module and the driver respectively.
2. backflow preventer according to claim 1, which is characterized in that the monitor for receive alarm signal and/
Or the instruction that the control drain valve (1) of user's input opens or closes.
3. backflow preventer according to claim 1, which is characterized in that the monitor is remote monitor.
4. backflow preventer according to claim 1, which is characterized in that the monitor is computer and/or mobile terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822002929.4U CN209100759U (en) | 2018-11-30 | 2018-11-30 | A kind of backflow preventer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822002929.4U CN209100759U (en) | 2018-11-30 | 2018-11-30 | A kind of backflow preventer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209100759U true CN209100759U (en) | 2019-07-12 |
Family
ID=67162166
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822002929.4U Active CN209100759U (en) | 2018-11-30 | 2018-11-30 | A kind of backflow preventer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209100759U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307100A (en) * | 2018-11-30 | 2019-02-05 | 天津市国威给排水设备制造有限公司 | A kind of backflow preventer sluicing judgment method and backflow preventer |
| CN110332341A (en) * | 2019-08-23 | 2019-10-15 | 德尔保定智能流体有限公司 | A kind of backflow preventer |
-
2018
- 2018-11-30 CN CN201822002929.4U patent/CN209100759U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109307100A (en) * | 2018-11-30 | 2019-02-05 | 天津市国威给排水设备制造有限公司 | A kind of backflow preventer sluicing judgment method and backflow preventer |
| CN110332341A (en) * | 2019-08-23 | 2019-10-15 | 德尔保定智能流体有限公司 | A kind of backflow preventer |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: A backflow preventer Effective date of registration: 20230724 Granted publication date: 20190712 Pledgee: China Resources Shenzhen International Investment Trust Co.,Ltd. Pledgor: TIANJIN GUOWEI FEEDING & DRAINAGE EQUIPMENT MENT MANUFACTURING Co.,Ltd. Registration number: Y2023110000304 |