CN205975805U - Safety device based on explosion -proof valve - Google Patents
Safety device based on explosion -proof valve Download PDFInfo
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- CN205975805U CN205975805U CN201620989331.7U CN201620989331U CN205975805U CN 205975805 U CN205975805 U CN 205975805U CN 201620989331 U CN201620989331 U CN 201620989331U CN 205975805 U CN205975805 U CN 205975805U
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Abstract
The utility model discloses a safety device based on explosion -proof valve, its characterized in that: at least, include: install explosion -proof valve and three -way valve in the hydraulic pipe -line, first valve port, the second valve port of three -way valve (1) are connected with the hydraulic pipe -line respectively, the third valve port of three -way valve (1) switches on through diversion pipeline and backward flow storehouse (4), the third valve port department of three -way valve (1) is provided with solenoid valve (2), be provided with pressure sensor (3) in the hydraulic pipe -line, the signal output terminal of pressure sensor (3) is connected with two input terminal electricity of logic or circuit through first comparator and second comparator respectively, the output terminal of logic or circuit is connected with the control terminal of solenoid valve (2) electricity, the reference terminal of first comparator is hydraulic lower limit threshold value input terminal, the reference terminal of second comparator is the input terminal of hydraulic upper limit threshold value. The utility model discloses the security of hydraulic pipe -line can improve.
Description
Technical field
This utility model is related to explosion-proof valve technical field, more particularly to a kind of safety device based on explosion-proof valve.
Background technology
At present, with social fast development, water increasingly increases as a kind of important living material, its consumption, mesh
Before, hydraulic pipeline is to realize one of important means of water delivery process, but actual using central, in water-supply-pipe hydraulic pressure meeting
Occur to increase or reduce, such as when certain branch road of upstream is closed, the hydraulic pressure on main line will increase, and works as hydraulic pipeline
When there is rupture, then the hydraulic pressure in hydraulic pipeline can reduce, if these hydraulic pressure are in rational range intervals, no
Can any destruction be caused to pipeline, but once hydraulic pressure exceed threshold range, then hydraulic pipeline can be caused serious injury or
Person leads to user cannot obtain water source.Therefore, design and develop and a kind of can be controlled according to the hydraulic pressure of current and then to current
Seem it is particularly important based on the safety device of explosion-proof valve.
Utility model content
The technical problems to be solved in the utility model is：A kind of safety device based on explosion-proof valve is provided, should be based on explosion-proof
The safety device of valve can carry out security control to the hydraulic pressure in aqueduct, when the hydraulic pressure in hydraulic pipeline increases or subtracts
When few, this explosion-proof valve all can start, and then carries out safeguard protection to hydraulic pipeline.
This utility model is adopted the technical scheme that by solving technical problem present in known technology：
A kind of safety device based on explosion-proof valve, at least includes：
It is installed on the explosion-proof valve in hydraulic pipeline and three-way valve (1)；First valve port of described three-way valve (1), the second valve port
It is connected with hydraulic pipeline respectively；3rd valve port of described three-way valve (1) passes through diversion pipeline and backflow storehouse (4) conducting；Described
It is provided with electromagnetic valve (2) at 3rd valve port of three-way valve (1)；It is provided with pressure transducer (3) in described hydraulic pipeline；Described
The signal output terminal of pressure transducer (3) passes through first comparator respectively and the second comparator is defeated with two of logic or circuit
Enter terminal electrical connection, the lead-out terminal of described logic or circuit is electrically connected with the control terminal of electromagnetic valve (2)；Described first compares
The reference terminal of device is the lower threshold input terminal of hydraulic pressure, and the reference terminal of described second comparator is the upper limit threshold of hydraulic pressure
Input terminal.
Preferably, this utility model additionally uses following technical scheme：
Further：Described pressure transducer (3) has M, and M pressure transducer is equally distributed in the difference of hydraulic pipeline
Position, M is the natural number more than 2.
This utility model has the advantages and positive effects that：
By adopting technique scheme, the pressure transducer in hydraulic pipeline can carry out real-time detection to hydraulic pressure, and
Testing result is sent to comparator, subsequently testing result is compared respectively with upper limit threshold and lower threshold, if water
Pressure exceeds threshold range, then control electromagnetic valve to open, and then current are imported backflow storehouse, prevents the waste of water.Work as hydraulic pipeline
In when there is multiple pressure transducer, the region of circuit failure generation can also be deduced by the detection of signal.
Brief description
Fig. 1 is the use state figure of this utility model preferred embodiment；
Fig. 2 is the circuit diagram of this utility model preferred embodiment.
Wherein：1st, three-way valve；2nd, electromagnetic valve；3rd, pressure transducer；4th, backflow storehouse.
Specific embodiment
For utility model content of the present utility model, feature and effect can be further appreciated that, hereby enumerate following examples, and
Cooperation accompanying drawing describes in detail as follows：
Refer to Fig. 1 and Fig. 2, a kind of safety device based on explosion-proof valve, including：
It is installed on the explosion-proof valve in hydraulic pipeline and three-way valve 1；First valve port of described three-way valve 1, the second valve port are respectively
It is connected with hydraulic pipeline；3rd valve port of described three-way valve 1 is passed through diversion pipeline and is turned on backflow storehouse 4；In described three-way valve 1
It is provided with electromagnetic valve 2 at 3rd valve port；It is provided with pressure transducer 3 in described hydraulic pipeline；The letter of described pressure transducer 3
Number lead-out terminal passes through first comparator respectively and the second comparator is electrically connected with two input terminals of logic or circuit, described
The lead-out terminal of logic or circuit is electrically connected with the control terminal of electromagnetic valve 2；The reference terminal of described first comparator is hydraulic pressure
Lower threshold input terminal, the reference terminal of described second comparator is the input terminal of the upper limit threshold of hydraulic pressure.
The operation principle of this preferred embodiment is：Three-way valve 1 He, when the hydraulic pressure in hydraulic pipeline is excessive or too small, then
At least one comparator exports a trigger, after logic or computing, trigger is sent to electromagnetic valve 2, electromagnetism
Valve 2 is opened after receiving signal, and then realizes sluicing, and current is guided to backflow storehouse 4, prevents the waste of current.
Preferably, on the basis of above preferred embodiment：
Further：Described pressure transducer 3 has M, and M pressure transducer is equally distributed in the different positions of hydraulic pipeline
Put, M is the natural number more than 2.
Above embodiment of the present utility model is described in detail, but described content has been only of the present utility model preferable
Embodiment is it is impossible to be considered for limiting practical range of the present utility model.All according to this utility model application range made equal
Deng change and improvement etc., all should still belong within patent covering scope of the present utility model.
Claims (2)
1. a kind of safety device based on explosion-proof valve it is characterised in that：At least include：
It is installed on the explosion-proof valve in hydraulic pipeline and three-way valve (1)；First valve port of described three-way valve (1), the second valve port are respectively
It is connected with hydraulic pipeline；3rd valve port of described three-way valve (1) passes through diversion pipeline and backflow storehouse (4) conducting；In described threeway
It is provided with electromagnetic valve (2) at 3rd valve port of valve (1)；It is provided with pressure transducer (3) in described hydraulic pipeline；Described pressure
The signal output terminal of sensor (3) passes through two inputs of first comparator and the second comparator and logic or circuit respectively
Son electrical connection, the lead-out terminal of described logic or circuit is electrically connected with the control terminal of electromagnetic valve (2)；Described first comparator
Reference terminal is the lower threshold input terminal of hydraulic pressure, and the reference terminal of described second comparator is the defeated of the upper limit threshold of hydraulic pressure
Enter terminal.
2. according to claim 1 the safety device based on explosion-proof valve it is characterised in that：Described pressure transducer (3) has M
Individual, M pressure transducer is equally distributed in the diverse location of hydraulic pipeline, and M is the natural number more than 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620989331.7U CN205975805U (en) | 2016-08-29 | 2016-08-29 | Safety device based on explosion -proof valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620989331.7U CN205975805U (en) | 2016-08-29 | 2016-08-29 | Safety device based on explosion -proof valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205975805U true CN205975805U (en) | 2017-02-22 |
Family
ID=58041630
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620989331.7U Active CN205975805U (en) | 2016-08-29 | 2016-08-29 | Safety device based on explosion -proof valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205975805U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193192A (en) * | 2016-08-29 | 2016-12-07 | 天津市天鼓机械制造有限公司 | A kind of safety device based on explosion-proof valve |
-
2016
- 2016-08-29 CN CN201620989331.7U patent/CN205975805U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106193192A (en) * | 2016-08-29 | 2016-12-07 | 天津市天鼓机械制造有限公司 | A kind of safety device based on explosion-proof valve |
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| GR01 | Patent grant |