CN219140521U - Pipe network leakage monitoring device - Google Patents
Pipe network leakage monitoring device Download PDFInfo
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- CN219140521U CN219140521U CN202223349685.XU CN202223349685U CN219140521U CN 219140521 U CN219140521 U CN 219140521U CN 202223349685 U CN202223349685 U CN 202223349685U CN 219140521 U CN219140521 U CN 219140521U
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Abstract
The application provides a pipe network leakage monitoring device, include: the fire alarm system comprises a fire alarm controller, a fire detector, an alarm, an exhaust electromagnetic valve, an air supplementing electromagnetic valve, an electric contact pressure gauge, a one-way valve and a pressure reducing valve which are sequentially arranged on a fire control pipe network, wherein the fire control pipe network is also connected with a spraying device, and the fire alarm controller is respectively and electrically connected with the fire detector, the alarm, the electric contact pressure gauge, the exhaust electromagnetic valve and the air supplementing electromagnetic valve; the electric contact pressure gauge monitors the pressure value in the fire-fighting pipe network. According to the automatic pipe network air supplementing device, the tail end of the pressure maintaining fire-fighting pipe network is additionally provided with the automatic pipe network air supplementing device, the pressure is reduced through the pressure reducing valve, the electric contact pressure gauge is used as the control point of the air supplementing electromagnetic valve, the high pressure value and the low pressure value are set to control the start and stop of the air supplementing electromagnetic valve, the pressure maintaining fire-fighting pipe network is kept at the set pressure for 24 hours, the problem that the pipe network leaks after the pre-action is effectively solved, and the problem that the production line is stopped and equipment is damaged due to the fact that the spraying system is started because other parts leak under the non-fire condition.
Description
Technical Field
The utility model relates to a pre-action spraying system of a new energy lithium iron phosphate battery production line, in particular to a pipe network leakage monitoring device of the pre-action spraying system.
Background
The lithium iron phosphate battery is used as a substitute product for a ternary battery in the new energy industry, and has extremely wide application market. The production safety of the battery is also extremely critical, and the pre-action water spraying system plays a decisive role in producing the pilot and protecting the navigation according to the explosion characteristics of the new energy lithium iron phosphate battery.
The traditional water spraying system of new energy generally artificially discovers fire or detects that fire information is uploaded by alarm equipment, then opens the pre-action valve and directly sprays water to electrical equipment, and potential safety hazard exists. If the fire disaster is not caused, the damage of a certain spray head of the pipe network is caused by mechanical touch, whether the pipe network at the rear end is good or not cannot be predicted, and once a pre-action valve is started, water spraying at other non-fire disaster occurrence storage positions can be influenced, equipment damage is caused by equipment short circuit, the set pressure of a spraying system is directly influenced, and accurate fire extinguishment cannot be realized even fire extinguishment cannot be realized.
Disclosure of Invention
The utility model aims to provide a pipe network leakage monitoring device, wherein a pipe network automatic air supplementing device is additionally arranged at the tail end of a pressure-maintaining fire-fighting pipe network, the pressure is reduced through a pressure reducing valve, the starting and stopping of an air supplementing electromagnetic valve are controlled by setting high and low pressure values through an electric contact pressure gauge, the pipe network is kept at set pressure for 24 hours, the pipe network leakage monitoring and early warning function is realized, and the problems of production line production stopping and equipment damage caused by mistaken spraying when a spraying system is started under the condition of non-fire are effectively solved.
In order to achieve the above purpose, the present utility model adopts the following technical scheme:
a pipe network leakage monitoring device, comprising: the fire alarm system comprises a fire alarm controller, a fire detector, an alarm, and an exhaust electromagnetic valve, an air supplementing electromagnetic valve, an electric contact pressure gauge, a one-way valve and a pressure reducing valve which are sequentially arranged on a fire control pipe network, wherein a spraying device is further connected on the fire control pipe network, and the fire alarm controller is respectively and electrically connected with the fire detector, the alarm, the electric contact pressure gauge, the exhaust electromagnetic valve and the air supplementing electromagnetic valve;
the electric contact pressure gauge monitors the pressure value in the fire-fighting pipe network, and when the pressure value is smaller than a preset first threshold value, the electric contact pressure gauge sends a first signal to the fire alarm controller, and the fire alarm controller controls the opening of the air supplementing electromagnetic valve; when the pressure value is still smaller than a preset second threshold value after the air supplementing electromagnetic valve is opened for a preset time, the electric contact pressure gauge sends a second signal to the fire alarm controller, and the fire alarm controller controls the alarm to be opened; when the pressure value is larger than a preset third threshold value, the electric contact pressure gauge sends a third signal to the fire alarm controller, and the fire alarm controller controls the exhaust electromagnetic valve to be opened.
Preferably, the exhaust electromagnetic valve is also connected with an automatic exhaust valve, an air inlet of the automatic exhaust valve is communicated with an exhaust port, and an air inlet of the automatic exhaust valve is communicated with an exhaust port of the exhaust electromagnetic valve; the fire alarm controller discharges the gas in the fire-proof pipe network by controlling the opening and closing of the exhaust port of the exhaust electromagnetic valve.
Preferably, the fire detector comprises at least one smoke detector and at least one temperature detector.
Preferably, the spray device comprises one or more bead blasting spray heads.
More preferably, the two blasting bead spray heads are arranged on the branch pipes of the fire-fighting pipe network uniformly in a group.
Preferably, the alarm is an audible and visual alarm.
Preferably, the fire alarm controller is an MCU or a PLC.
Preferably, when the pressure of the fire-fighting pipe network rises and exceeds a preset third threshold value, the electric contact pressure gauge is connected with a high-voltage contact through a pointer, and the third signal is generated after the high-voltage contact is closed;
when the pressure of the fire-fighting pipe network is reduced and is lower than a preset first threshold value, the electric contact pressure gauge is connected with a low-voltage contact through a pointer, and after the low-voltage contact is closed, the first signal is generated.
Preferably, the first threshold is 0.1MPa.
Preferably, the preset time period is 40 seconds.
Preferably, the third threshold is 0.25MPa.
Preferably, the second threshold is the same as the first threshold.
Compared with the prior art, the technical scheme of the utility model has the following beneficial effects:
the utility model provides a pipe network leakage monitoring device, wherein a pipe network automatic air supplementing device is additionally arranged at the tail end of a pressure-maintaining fire-fighting pipe network, the pressure is reduced through a pressure reducing valve, an electric contact pressure gauge is used as a control point of an air supplementing electromagnetic valve, a high pressure value and a low pressure value are set to control the start and stop of the air supplementing electromagnetic valve, the pressure-maintaining fire-fighting pipe network is kept at the set pressure for 24 hours, the pipe network leakage monitoring and early warning function is realized, the pipe network leakage problem after the pre-action is effectively solved, and the production line shutdown and equipment damage caused by the false spraying due to the starting of a spraying system caused by the leakage of other parts under the non-fire condition are avoided.
Drawings
The accompanying drawings, which are included to provide a further understanding of the application, illustrate and explain the application and are not to be construed as limiting the application. In the drawings:
fig. 1 is a schematic structural view of a pipe network leakage monitoring device according to a preferred embodiment of the present utility model.
Legend description:
1. a pressure reducing valve; 2. an electrical contact pressure gauge; 3. a one-way valve; 4. an air supplementing electromagnetic valve; 5. an exhaust electromagnetic valve; 6. an exhaust valve; 7. an input/output module; 8. a temperature-sensitive fire detector; 9. the bead explosion spray header; 10. a smoke-sensitive fire detector; 11. a fire alarm controller; 12. an audible and visual alarm.
Detailed Description
In order to make the objects, technical solutions and effects of the present utility model clearer and more obvious, the present utility model will be further described in detail below with reference to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
It is noted that the terms "first," "second," and the like in the description and claims of the present utility model and in the foregoing figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order, and it is to be understood that the data so used may be interchanged where appropriate. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements expressly listed but may include other elements not expressly listed or inherent to such article or apparatus.
Referring to fig. 1, an embodiment of the present utility model provides a pipe network leakage monitoring device, including: a fire alarm controller 11, a fire detector (comprising a temperature-sensing fire detector 8 and a smoke-sensing fire detector 10), an audible and visual alarm 12, and an exhaust electromagnetic valve 5, an air supplementing electromagnetic valve 4, an electric contact pressure gauge 2, a one-way valve 3 and a pressure reducing valve 1 which are sequentially arranged on a pressure-maintaining fire-fighting pipe network. And the pressure-maintaining fire-fighting pipe network is also connected with a spraying device, and the spraying device comprises one or more blasting bead spray heads 9. The fire alarm controller 11 is electrically connected with the temperature-sensing fire detector 8, the smoke-sensing fire detector 10, the audible and visual alarm 12, the electric contact pressure gauge 2, the exhaust electromagnetic valve 5 and the air supplementing electromagnetic valve 4 respectively. And the electric contact pressure gauge 2 monitors the pressure value in the pressure-maintaining fire-fighting pipe network in real time.
In one embodiment, the fire alarm controller 11 is an MCU or a PLC.
In one embodiment, the two blasting bead spray heads 9 are arranged on the branch pipes of the fire-fighting pipe network uniformly in a group.
In one embodiment, the exhaust electromagnetic valve 5 is further connected with an automatic exhaust valve 6, an air inlet of the automatic exhaust valve 6 is communicated with an exhaust port, and an air inlet of the automatic exhaust valve 6 is communicated with an exhaust port of the exhaust electromagnetic valve 5. The fire alarm controller 11 discharges the gas in the pressure-maintaining fire-fighting pipe network by controlling the opening and closing of the exhaust port of the exhaust electromagnetic valve 5.
The pipe network leakage monitoring device is characterized in that a pipe network at the rear end of a pre-acting valve is inflated, a pressure value is set through an electric contact pressure meter 2, the air supplementing quantity is lower than a flow value of a spray head, air source is utilized for supplementing pressure, after a spray head at a certain warehouse position bursts, air pressure cannot supplement the set pressure within a set time, the spray head at the certain warehouse position is regarded as leakage or burst, an alarm is started immediately, a worker is prompted to check whether the warehouse position has fire or the spray head bursts, and the pre-acting valve is opened to extinguish the fire or check the leakage point of the pipe network for restoration.
Specifically, the working principle or working process of the pipe network leakage monitoring device is as follows:
when the pressure value in the front-end pressure-maintaining fire-fighting pipe network is lower than the low-pressure alarm value (namely a preset first threshold value) set by the electric contact pressure gauge 2, the electric contact pressure gauge 2 is connected with a low-pressure contact through a pointer, after the low-pressure contact is closed, a first signal is generated, the first signal is transmitted to the fire alarm controller 11 through the input/output module 7, and the fire alarm controller 11 controls the opening of the air-supplementing electromagnetic valve 4 according to the first signal so as to perform air-supplementing operation on the front-end pressure-maintaining fire-fighting pipe network.
When the pressure value in the pressure maintaining fire protection pipe network exceeds the high-pressure alarm value (namely a preset third threshold value) set by the electric contact pressure gauge 2, the electric contact pressure gauge 2 is connected with a high-pressure contact through a pointer, a third signal is generated after the high-pressure contact is closed, the third signal is transmitted to the fire alarm controller 11 through the input/output module 7, and the fire alarm controller 11 controls the opening of the exhaust electromagnetic valve 5 according to the third signal to perform the operation of exhausting and reducing pressure on the pressure maintaining fire protection pipe network.
When the pressure maintaining fire protection pipe network enters an air supplementing state and when the air supplementing electromagnetic valve 4 is started for a preset time period, and when the pressure value in the pressure maintaining fire protection pipe network is still lower than the low-pressure alarm value set by the electric contact pressure gauge 2 (namely, a preset second threshold value which can be the same as the first threshold value), the electric contact pressure gauge 2 sends a second signal to the fire alarm controller 11, the second signal is transmitted to the fire alarm controller 11 through the input and output module 7, the fire alarm controller 11 controls the audible and visual alarm 12 to be started according to the second signal, and meanwhile, the communication module outputs a signal to feed back to a control center, prompts an operator on duty to immediately inquire and judge whether a fire protection spraying system pre-acting valve needs to be started for fire extinguishment.
Specifically, after receiving the alarm signal sent by the fire alarm controller 11, the operator on duty in the control center goes to the site to make an inspection: if no fire occurs, closing the air supplementing electromagnetic valve 4, checking the leakage point for maintenance; if fire occurs, the pre-action valve of the fire-fighting spraying system is immediately started to fill water into the pipeline for fire extinguishment.
Under the normal operation condition of the system, the electric contact pressure gauge 2 is used as a control point of the air supplementing electromagnetic valve 4, and the opening and closing of the air supplementing electromagnetic valve 4 are controlled by instructions. For example, if slight leakage occurs in the pressure-maintaining fire-fighting pipe network, the pressure of the pressure-maintaining fire-fighting pipe network will drop to the minimum value in two hours or even about half an hour, the contacts of the electric-contact pressure meter 2 are electrified, the air-supplementing electromagnetic valve 4 is controlled to be opened, the air-supplementing electromagnetic valve 4 supplements the pressure to 0.25MPA within 40 seconds, the electric-contact pressure meter 2 is powered off when reaching the high-position contacts, the air-supplementing electromagnetic valve 4 is closed, and the system enters a circulation monitoring state.
In summary, the technical scheme of the utility model provides the pipe network leakage monitoring device, the pipe network automatic air supplementing device is additionally arranged at the tail end of the pressure-maintaining fire-fighting pipe network, the pressure is reduced through the pressure reducing valve, the electric contact pressure gauge is used as the control point of the air supplementing electromagnetic valve, the high-low pressure value is set to control the start and stop of the air supplementing electromagnetic valve, the pressure-maintaining fire-fighting pipe network is kept at the set pressure for 24 hours, the pipe network leakage monitoring and early warning function is realized, the pipe network leakage problem after the pre-action is effectively solved, and the problems of production line shutdown and equipment damage caused by mistaken spraying due to the start of a spraying system caused by leakage of other parts under the non-fire condition are avoided.
The above description of the specific embodiments of the present utility model has been given by way of example only, and the present utility model is not limited to the above described specific embodiments. Any equivalent modifications and substitutions for this practical use will also occur to those skilled in the art, and are within the scope of the present utility model. Accordingly, equivalent changes and modifications are intended to be included within the scope of the present utility model without departing from the spirit and scope thereof.
Claims (10)
1. A pipe network leakage monitoring device, comprising: the fire alarm system comprises a fire alarm controller, a fire detector, an alarm, and an exhaust electromagnetic valve, an air supplementing electromagnetic valve, an electric contact pressure gauge, a one-way valve and a pressure reducing valve which are sequentially arranged on a fire control pipe network, wherein a spraying device is further connected on the fire control pipe network, and the fire alarm controller is respectively and electrically connected with the fire detector, the alarm, the electric contact pressure gauge, the exhaust electromagnetic valve and the air supplementing electromagnetic valve;
the electric contact pressure gauge monitors the pressure value in the fire-fighting pipe network, and when the pressure value is smaller than a preset first threshold value, the electric contact pressure gauge sends a first signal to the fire alarm controller, and the fire alarm controller controls the opening of the air supplementing electromagnetic valve; when the pressure value is still smaller than a preset second threshold value after the air supplementing electromagnetic valve is opened for a preset time, the electric contact pressure gauge sends a second signal to the fire alarm controller, and the fire alarm controller controls the alarm to be opened; when the pressure value is larger than a preset third threshold value, the electric contact pressure gauge sends a third signal to the fire alarm controller, and the fire alarm controller controls the exhaust electromagnetic valve to be opened.
2. The pipe network leakage monitoring device according to claim 1, wherein the exhaust electromagnetic valve is further connected with an automatic exhaust valve, an air inlet of the automatic exhaust valve is communicated with an air outlet, and an air inlet of the automatic exhaust valve is communicated with an air outlet of the exhaust electromagnetic valve; the fire alarm controller discharges the gas in the fire-proof pipe network by controlling the opening and closing of the exhaust port of the exhaust electromagnetic valve.
3. The pipe network leak monitoring device of claim 1, wherein the fire detector comprises at least one smoke detector and at least one temperature detector.
4. The pipe network leakage monitoring device of claim 1, wherein the spraying device comprises one or more bead blasting sprayers.
5. The pipe network leakage monitoring device according to claim 4, wherein the two blasting bead spray heads are arranged on the branch pipes of the fire-fighting pipe network uniformly in a group.
6. The pipe network leakage monitoring device according to claim 1, wherein the alarm is an audible and visual alarm.
7. The pipe network leakage monitoring device according to claim 1, wherein the fire alarm controller is an MCU or a PLC.
8. The pipe network leakage monitoring device according to claim 1, wherein when the pressure of the fire-fighting pipe network rises and exceeds a preset third threshold value, the electric contact pressure gauge is connected with a high-voltage contact through a pointer, and the third signal is generated after the high-voltage contact is closed;
when the pressure of the fire-fighting pipe network is reduced and is lower than a preset first threshold value, the electric contact pressure gauge is connected with a low-voltage contact through a pointer, and after the low-voltage contact is closed, the first signal is generated.
9. The pipe network leakage monitoring device according to claim 1, wherein the first threshold is 0.1Mpa; the preset duration is 40 seconds; the third threshold is 0.25MPa.
10. The pipe network leakage monitoring device of claim 1, wherein the second threshold is the same as the first threshold.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223349685.XU CN219140521U (en) | 2022-12-14 | 2022-12-14 | Pipe network leakage monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223349685.XU CN219140521U (en) | 2022-12-14 | 2022-12-14 | Pipe network leakage monitoring device |
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| Publication Number | Publication Date |
|---|---|
| CN219140521U true CN219140521U (en) | 2023-06-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223349685.XU Active CN219140521U (en) | 2022-12-14 | 2022-12-14 | Pipe network leakage monitoring device |
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| CN (1) | CN219140521U (en) |
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- 2022-12-14 CN CN202223349685.XU patent/CN219140521U/en active Active
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