CN106730561A - Fire hydrant water pressure monitoring system and monitoring method - Google Patents
Fire hydrant water pressure monitoring system and monitoring method Download PDFInfo
- Publication number
- CN106730561A CN106730561A CN201611138556.2A CN201611138556A CN106730561A CN 106730561 A CN106730561 A CN 106730561A CN 201611138556 A CN201611138556 A CN 201611138556A CN 106730561 A CN106730561 A CN 106730561A
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- China
- Prior art keywords
- fire hydrant
- hollow pipe
- fixed seat
- metallic piston
- alarm
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- 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.)
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Classifications
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C37/00—Control of fire-fighting equipment
- A62C37/50—Testing or indicating devices for determining the state of readiness of the equipment
-
- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62C—FIRE-FIGHTING
- A62C35/00—Permanently-installed equipment
- A62C35/20—Hydrants, e.g. wall-hoses, wall units, plug-in cabinets
Landscapes
- Health & Medical Sciences (AREA)
- Public Health (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Fire-Extinguishing By Fire Departments, And Fire-Extinguishing Equipment And Control Thereof (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of fire hydrant water pressure monitoring system and monitoring method, including：Fixed seat and hollow pipe；Offered in fixed seat with female groove；One end of hollow pipe is provided with external screw thread；Metallic piston is provided with hollow pipe；Hollow pipe inner chamber is divided into reference cavity and contrast chamber by metallic piston；Liquid is perfused with reference cavity；Contrast chamber connects with the water body in fire hydrant；The other end of hollow pipe is provided with annular protrusion；Peripherally disposed multiple ring shaped contacts switch is embedded with the tube wall of hollow pipe；Each contact-making switch constitutes series loop by a pressure limiting resistance with voltmeter, power supply；Any position of series loop is electrically connected by wire with the comparing terminal of current comparator；The reference terminal of current comparator is electrically connected with reference signal input equipment；The lead-out terminal of current comparator is electrically connected by trigger with alarm；The voltmeter, power supply, current comparator, trigger and alarm are respectively positioned on outside fire hydrant.
Description
Technical field
The present invention relates to fire hydrant hydraulic pressure detection technique field, more particularly to a kind of fire hydrant water pressure monitoring system and prison
Survey method.
Background technology
It is well known that fire hydrant (English name：Fire hydrant), a kind of fixed fire-fighting instrument has 4 iron chains.In city
Fire hydrant is equipped with city everywhere, is that fireman provides water for fire extinguishing in rescue operations.Main Function be control combustible, every
Exhausted oxidizer, elimination ignition source.Fire-fighting system includes that outdoor fire hydrant system, indoor fire hydrant system, fire extinguisher system has
Also have automatic sprinkler fire-extinguishing system, water cannon system, gas extinguishing system, fiery spy system, spraying system etc..Fire hydrant is mainly for disappearing
Anti- car implements fire extinguishing from municipal water supply pipe network or the water intaking of outdoor fire fighting water supply network, it is also possible to be directly connected to water band, hydraulic giant water outlet
Fire extinguishing.So, outdoor fire hydrant system is also one of important fire fighting device for fighting a fire.
In order to ensure the normal work of fire hydrant, fire-fighting work personnel need periodically to examine the hydraulic pressure in fire hydrant
Survey, and then ensure that fire hydrant can be used normally when fire occurs, but found by practice, with city size
Expand day by day, the position polytropy of the quantity and fire hydrant of fire hydrant so that missing inspection or detection inconvenient defect day
Benefit manifests；In order to overcome drawbacks described above, a kind of equipment system that can be monitored to the hydraulic pressure in fire hydrant in real time is designed and developed
System seems it is particularly important.
The content of the invention
The technical problem to be solved in the present invention is：A kind of fire hydrant water pressure monitoring system and monitoring method, the fire-fighting are provided
Bolt water pressure monitoring system and monitoring method can carry out real-time detection to the hydraulic pressure in fire hydrant, at the same have long service life,
Easy to install the characteristics of.
The present invention is adopted the technical scheme that to solve technical problem present in known technology：
A kind of fire hydrant water pressure monitoring system, at least includes：
The fixed seat (4) being fixedly connected with fire hydrant inwall；Offered with female recessed in the fixed seat (4)
Groove；
The hollow pipe (2) being connected with the fixed seat (4)；One end of the hollow pipe (2) is provided with and the internal thread
The external screw thread of connection；It is provided with and the close-fitting metallic piston of hollow pipe (2) inwall (5) in the hollow pipe (2)；It is described
Hollow pipe (2) inner chamber is divided into reference cavity (6) and contrast chamber by metallic piston (5)；Wherein：Perfusion in the reference cavity (6)
There is the liquid that pressure is P；The contrast chamber connects with the water body in fire hydrant；It is provided with the other end of the hollow pipe (2)
Towards the annular protrusion (1) in inwall direction；The hollow pipe (2) is made up of rubber；It is embedded with the tube wall of the hollow pipe
Peripherally disposed multiple ring shaped contacts switch (3)；Each contact-making switch is by a pressure limiting resistance and voltmeter, power supply
Composition series loop；
Any position of the series loop is electrically connected by wire with the comparing terminal of current comparator；The electric current ratio
Reference terminal compared with device is electrically connected with reference signal input equipment；The lead-out terminal of the current comparator is by trigger and report
Alert device electrical connection；The voltmeter, power supply, current comparator, trigger and alarm are respectively positioned on outside fire hydrant.
Further：Light emitting diode is in series with the series loop.
Further：Also include the optical detection device used cooperatively with light emitting diode；The optical detection device
Signal output terminal is RJ45 ports；The RJ45 ports carry out data interaction by netting twine and remote control terminal.
Further：The alarm is the audible-visual annunciator for being integrated with wireless signal transmission antenna.
A kind of detection method of fire hydrant water pressure monitoring system, at least comprises the following steps：
Step 101, to injection liquid in reference cavity (6)；So that when metallic piston is moved to fixed seat (4) one end, and away from
When being D with a distance from fixed seat (4), the pressure of metallic piston both sides is equal to the higher limit of pressure in fire hydrant, wherein, D is more than
3mm and under in 10mm；
Step 102, fixed seat (4) is fixed in fire hydrant；When the hydraulic pressure in fire hydrant is higher than the liquid in reference cavity (6)
During body pressure, then metallic piston is moved to fixed seat (4) direction；Meanwhile, often by a contact-making switch, then this connects metallic piston
Switch closure is touched, will now there is a current signal for particular size in series loop；
Step 103, when metallic piston is by contact-making switch (3), then the current signal and comparator compare the ratio of terminal
It is compared compared with terminal input signal, when comparative result is true, then trigger sends trigger signal to alarm；Otherwise, touch
Hair device and alarm do not work.
A kind of detection method of fire hydrant water pressure monitoring system, at least comprises the following steps：
Step 201, to injection liquid in reference cavity (6)；So that when metallic piston is moved to fixed seat (4) one end, and away from
When being D with a distance from fixed seat (4), the pressure of metallic piston both sides is equal to the higher limit of pressure in fire hydrant, wherein, D is more than
3mm and under in 10mm；
Step 202, fixed seat (4) is fixed in fire hydrant；When the hydraulic pressure in fire hydrant is higher than the liquid in reference cavity (6)
During body pressure, then metallic piston is moved to fixed seat (4) direction；Meanwhile, often by a contact-making switch, then this connects metallic piston
Switch closure is touched, will now there is a current signal for particular size in series loop；
Step 203, when metallic piston is by contact-making switch (3), then the current signal and comparator compare the ratio of terminal
It is compared compared with terminal input signal, when comparative result is true, then trigger sends trigger signal to alarm；It is simultaneously luminous
Diode operation；Otherwise, trigger and alarm do not work.
Step 204, when lumination of light emitting diode, then the light intensity signal that optical detection device will be monitored by netting twine send out
Deliver to remote monitoring center.
The present invention has the advantages and positive effects that：
By using above-mentioned technical proposal, under normal circumstances, i.e., when the hydraulic pressure in fire hydrant is in normal range (NR), metal is lived
Plug be located at fixed seat side, when in fire hydrant hydraulic pressure decline when, metallic piston to the side shifting of boss one, when metallic piston passes through
During each proximity switch, then voltmeter detects a specific voltage signal, and the size of each voltage signal corresponds to one
Specific hydraulic pressure, when voltage signal exceeds a preset value, i.e., when hydraulic pressure is too low, then sends alarm signal；Under normal circumstances,
Metallic piston is constantly in fixed seat side, and now multiple proximity switches are in off-state, and circuit is off, then
Circuit does not consume electric energy；Therefore the monitoring system has the advantages that efficient energy-saving；Also simple structure simultaneously, processing, maintenance are used
It is very convenient.
Brief description of the drawings
Fig. 1 is the structural representation of the preferred embodiment of the present invention.
Wherein：1st, boss；2nd, hollow pipe；3 proximity switches；4th, fixed seat；5th, metallic piston；6th, reference cavity.
Specific embodiment
For the content of the invention of the invention, feature and effect can be further appreciated that, following examples are hereby enumerated, and coordinate accompanying drawing
Describe in detail as follows：
Refer to Fig. 1, a kind of fire hydrant water pressure monitoring system, including：
The fixed seat 4 being fixedly connected with fire hydrant inwall；Offered in the fixed seat 4 with female groove；
The hollow pipe 2 being connected with the fixed seat 4；One end of the hollow pipe 2 is provided with what is be connected with the internal thread
External screw thread；It is provided with and the close-fitting metallic piston 5 of the inwall of hollow pipe 2 in the hollow pipe 2；The metallic piston 5 will
The inner chamber of hollow pipe 2 is divided into reference cavity 6 and contrast chamber；Wherein：The liquid that pressure is P is perfused with the reference cavity 6；It is described
Contrast chamber connects with the water body in fire hydrant；The other end of the hollow pipe 2 is provided with the annular protrusion towards inwall direction
1；The hollow pipe 2 is made up of rubber；Peripherally disposed multiple annulars are embedded with the tube wall of the hollow pipe to connect
Touch switch 3；Each contact-making switch constitutes series loop by a pressure limiting resistance with voltmeter, power supply；Because each is connected back
Pressure limiting resistance in road is different, therefore when these series loops are connected, then the electric current in each series loop；Each electricity
Stream size one contact-making switch of correspondence, the hydraulic pressure value in each contact-making switch one fire hydrant of correspondence；Above-mentioned hydraulic pressure numerical value can be with
Immediately arrived at by calculating or previous experiments；
Any position of the series loop is electrically connected by wire with the comparing terminal of current comparator；The electric current ratio
Reference terminal compared with device is electrically connected with reference signal input equipment；The lead-out terminal of the current comparator is by trigger and report
Alert device electrical connection；The voltmeter, power supply, current comparator, trigger and alarm are respectively positioned on outside fire hydrant.
The operation principle of this preferred embodiment is：Under normal circumstances, i.e., when the hydraulic pressure in fire hydrant is in normal range (NR), gold
Category piston is located at the side of fixed seat 4, when the hydraulic pressure in fire hydrant declines, metallic piston to the side shifting of boss one, when metal is lived
When plug is by each proximity switch, then voltmeter detects a specific voltage signal, the size correspondence of each voltage signal
In a specific hydraulic pressure, when voltage signal exceeds a preset value, i.e., when hydraulic pressure is too low, then alarm signal is sent；Normally
In the case of, metallic piston is constantly in fixed seat side, and now multiple proximity switches are in off-state, and circuit is in and disconnects
State, then circuit do not consume electric energy；Therefore the monitoring system has the advantages that efficient energy-saving；Also simple structure, processing, dimension simultaneously
Repair very easy to use.
Being capable of directionality problem in time for the ease of live fire fighter：Light-emitting diodes are in series with the series loop
Pipe.So when hydraulic pressure is too low, then light emitting diode starts in time, sends alarm signal.
In order to realize remote monitoring：Also include the optical detection device used cooperatively with light emitting diode；The smooth electric-examination
The signal output terminal for surveying element is RJ45 ports；The RJ45 ports carry out data friendship by netting twine and remote control terminal
Mutually.The alarm signal at scene can be so sent to distal end in time by the netting twine of low pressure and be monitored；
The alarm is the audible-visual annunciator for being integrated with wireless signal transmission antenna.
Monitoring system in above preferred embodiment has the following two kinds working method：
A kind of detection method of fire hydrant water pressure monitoring system, comprises the following steps：
Step 101, to injecting liquid in reference cavity 6；So that when metallic piston is moved to the one end of fixed seat 4, and distance is solid
When the distance of reservation 4 is D, the pressure of metallic piston both sides is equal to the higher limit of pressure in fire hydrant, wherein, D more than 3mm and under
In 10mm；In the preferred embodiment, the length of hollow pipe 2 is 40mm；The external diameter and internal diameter of hollow pipe be respectively 20mm and
14mm；
Step 102, fixed seat 4 is fixed in fire hydrant；When the hydraulic pressure in fire hydrant is higher than the liquid pressure in reference cavity 6
Qiang Shi, then metallic piston is to the movement of the direction of fixed seat 4；Meanwhile, metallic piston often by a contact-making switch, then the contact-making switch
Closure, will now there is a current signal for particular size in series loop；
Step 103, when metallic piston is by contact-making switch 3, then the current signal compares the comparing of terminal with comparator
Terminal input signal is compared, and when comparative result is true, then trigger sends trigger signal to alarm；Otherwise, trigger
Device and alarm do not work.
A kind of detection method of fire hydrant water pressure monitoring system, at least comprises the following steps：
Step 201, to injecting liquid in reference cavity 6；So that when metallic piston is moved to the one end of fixed seat 4, and distance is solid
When the distance of reservation 4 is D, the pressure of metallic piston both sides is equal to the higher limit of pressure in fire hydrant, wherein, D more than 3mm and under
In 10mm；
Step 202, fixed seat 4 is fixed in fire hydrant；When the hydraulic pressure in fire hydrant is higher than the liquid pressure in reference cavity 6
Qiang Shi, then metallic piston is to the movement of the direction of fixed seat 4；Meanwhile, metallic piston often by a contact-making switch, then the contact-making switch
Closure, will now there is a current signal for particular size in series loop；
Step 203, when metallic piston is by contact-making switch 3, then the current signal compares the comparing of terminal with comparator
Terminal input signal is compared, and when comparative result is true, then trigger sends trigger signal to alarm；While luminous two
Pole pipe works；Otherwise, trigger and alarm do not work.
Step 204, when lumination of light emitting diode, then the light intensity signal that optical detection device will be monitored by netting twine send out
Deliver to remote monitoring center.
Embodiments of the invention have been described in detail above, but the content is only presently preferred embodiments of the present invention,
It is not to be regarded as limiting practical range of the invention.All impartial changes made according to the present patent application scope and improvement etc.,
All should still belong within patent covering scope of the invention.
Claims (6)
1. a kind of fire hydrant water pressure monitoring system, it is characterised in that：At least include：
The fixed seat (4) being fixedly connected with fire hydrant inwall；Offered with female groove in the fixed seat (4)；
The hollow pipe (2) being connected with the fixed seat (4)；One end of the hollow pipe (2) is provided with and is connected with the internal thread
External screw thread；It is provided with and the close-fitting metallic piston of hollow pipe (2) inwall (5) in the hollow pipe (2)；The metal
Hollow pipe (2) inner chamber is divided into reference cavity (6) and contrast chamber by piston (5)；Wherein：Pressure is perfused with the reference cavity (6)
Power is the liquid of P；The contrast chamber connects with the water body in fire hydrant；The other end of the hollow pipe (2) is provided with direction
The annular protrusion (1) in inwall direction；The hollow pipe (2) is made up of rubber；It is embedded with along circle in the tube wall of the hollow pipe
Multiple ring shaped contacts switch (3) that circumferential direction is set；Each contact-making switch is made up of a pressure limiting resistance with voltmeter, power supply
Series loop；
Any position of the series loop is electrically connected by wire with the comparing terminal of current comparator；The current comparator
Reference terminal electrically connected with reference signal input equipment；The lead-out terminal of the current comparator passes through trigger and alarm
Electrical connection；The voltmeter, power supply, current comparator, trigger and alarm are respectively positioned on outside fire hydrant.
2. fire hydrant water pressure monitoring system according to claim 1, it is characterised in that：It is in series with the series loop
Light emitting diode.
3. fire hydrant water pressure monitoring system according to claim 2, it is characterised in that：Also include coordinating with light emitting diode
The optical detection device for using；The signal output terminal of the optical detection device is RJ45 ports；The RJ45 ports pass through
Netting twine carries out data interaction with remote control terminal.
4. the fire hydrant water pressure monitoring system according to claim any one of 1-3, it is characterised in that：The alarm is collection
Into the audible-visual annunciator for having wireless signal transmitting antenna.
5. a kind of detection method based on fire hydrant water pressure monitoring system described in claim 1, it is characterised in that：At least include such as
Lower step：
Step 101, to injection liquid in reference cavity (6)；So that when metallic piston is moved to fixed seat (4) one end, and distance is solid
When the distance of reservation (4) is D, the pressure of metallic piston both sides is equal to the higher limit of pressure in fire hydrant, wherein, D more than 3mm and
Under in 10mm；
Step 102, fixed seat (4) is fixed in fire hydrant；When the hydraulic pressure in fire hydrant is higher than the liquid pressure in reference cavity (6)
Qiang Shi, then metallic piston is to the movement of fixed seat (4) direction；Meanwhile, metallic piston often by a contact-making switch, then open by the contact
Close and close, will now there is a current signal for particular size in series loop；
Step 103, when metallic piston is by contact-making switch (3), then the current signal compares the comparing end of terminal with comparator
Sub- input signal is compared, and when comparative result is true, then trigger sends trigger signal to alarm；Otherwise, trigger
Do not worked with alarm.
6. a kind of detection method based on fire hydrant water pressure monitoring system described in claim 4, it is characterised in that：At least include such as
Lower step：
Step 201, to injection liquid in reference cavity (6)；So that when metallic piston is moved to fixed seat (4) one end, and distance is solid
When the distance of reservation (4) is D, the pressure of metallic piston both sides is equal to the higher limit of pressure in fire hydrant, wherein, D more than 3mm and
Under in 10mm；
Step 202, fixed seat (4) is fixed in fire hydrant；When the hydraulic pressure in fire hydrant is higher than the liquid pressure in reference cavity (6)
Qiang Shi, then metallic piston is to the movement of fixed seat (4) direction；Meanwhile, metallic piston often by a contact-making switch, then open by the contact
Close and close, will now there is a current signal for particular size in series loop；
Step 203, when metallic piston is by contact-making switch (3), then the current signal compares the comparing end of terminal with comparator
Sub- input signal is compared, and when comparative result is true, then trigger sends trigger signal to alarm；While light-emitting diodes
Pipe works；Otherwise, trigger and alarm do not work.
Step 204, when lumination of light emitting diode, then the light intensity signal that optical detection device will be monitored by netting twine send to
Remote monitoring center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138556.2A CN106730561A (en) | 2016-12-12 | 2016-12-12 | Fire hydrant water pressure monitoring system and monitoring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611138556.2A CN106730561A (en) | 2016-12-12 | 2016-12-12 | Fire hydrant water pressure monitoring system and monitoring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106730561A true CN106730561A (en) | 2017-05-31 |
Family
ID=58879956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611138556.2A Withdrawn CN106730561A (en) | 2016-12-12 | 2016-12-12 | Fire hydrant water pressure monitoring system and monitoring method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106730561A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000345592A (en) * | 1999-06-07 | 2000-12-12 | Masabumi Minami | Fire hydrant with air valve |
| CN103940545A (en) * | 2014-02-28 | 2014-07-23 | 江苏大学 | Fire-hydrant water pressure state monitoring system and method based on WSN |
| CN104368112A (en) * | 2014-10-24 | 2015-02-25 | 滨州学院 | Online monitoring and positioning system of fire hydrant and method of online monitoring and positioning system |
| US20160093193A1 (en) * | 2013-05-21 | 2016-03-31 | Silversmith, Inc. | Hydrant monitoring system and method |
| CN206304271U (en) * | 2016-12-12 | 2017-07-07 | 互联智控科技（天津）有限公司 | Fire hydrant water pressure monitoring system |
-
2016
- 2016-12-12 CN CN201611138556.2A patent/CN106730561A/en not_active Withdrawn
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000345592A (en) * | 1999-06-07 | 2000-12-12 | Masabumi Minami | Fire hydrant with air valve |
| US20160093193A1 (en) * | 2013-05-21 | 2016-03-31 | Silversmith, Inc. | Hydrant monitoring system and method |
| CN103940545A (en) * | 2014-02-28 | 2014-07-23 | 江苏大学 | Fire-hydrant water pressure state monitoring system and method based on WSN |
| CN104368112A (en) * | 2014-10-24 | 2015-02-25 | 滨州学院 | Online monitoring and positioning system of fire hydrant and method of online monitoring and positioning system |
| CN206304271U (en) * | 2016-12-12 | 2017-07-07 | 互联智控科技（天津）有限公司 | Fire hydrant water pressure monitoring system |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170531 |
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| WW01 | Invention patent application withdrawn after publication |