CN218121251U - Pressure monitoring sensing digital display alarm device of automatic fire extinguishing system - Google Patents
Pressure monitoring sensing digital display alarm device of automatic fire extinguishing system Download PDFInfo
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- CN218121251U CN218121251U CN202222461274.3U CN202222461274U CN218121251U CN 218121251 U CN218121251 U CN 218121251U CN 202222461274 U CN202222461274 U CN 202222461274U CN 218121251 U CN218121251 U CN 218121251U
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Abstract
The utility model discloses an automatic fire extinguishing system pressure monitoring sensing digital display alarm device, including alarm device, locate the pressure sensor on the medicament steel bottle, pressure sensor includes the casing, the casing is equipped with pressure chamber, working chamber, be equipped with pressure sensitive subassembly in the pressure chamber, pressure sensitive subassembly includes the metal casing, be equipped with power and signal processing subassembly in the working chamber, pressure chamber one side is equipped with the pressure channel that communicates with the external world, the pressure chamber opposite side is connected with working chamber and is equipped with the connect the through-hole, pressure sensitive subassembly one end communicates with pressure channel, pressure sensitive subassembly other end terminal surface and the inboard plane tight fit setting of pressure chamber, connect the through-hole diameter and be less than pressure sensitive subassembly metal casing internal diameter; the pressure sensitive component is connected with the power supply and the signal processing component through a cable, the cable penetrates through the connecting through hole, and the pressure sensitive component is electrically connected with the alarm device. The utility model discloses simple structure, convenient to use, the pressure is revealed the possibility lowly.
Description
Technical Field
The utility model relates to a pressure sensor technical field specifically is an automatic fire extinguishing systems pressure monitoring sensing digital display alarm device.
Background
A Pressure Transducer is a device or apparatus that senses a Pressure signal and converts the Pressure signal into a usable output electrical signal according to a certain rule. A pressure sensor is usually composed of a pressure sensitive element and a signal processing unit.
The pressure sensor is the most commonly used sensor in industrial practice, and is widely applied to various automatic control environments, for example, on a medicament steel cylinder of an automatic fire extinguishing system, fire extinguishing substances such as high-pressure nitrogen and the like are stored in the medicament steel cylinder, the medicament steel cylinder is in a high-pressure state for standby use for a long time, if the pressure in the cylinder is overloaded or leaked, potential safety hazards can be caused to normal use, the pressure sensor is usually installed on a cylinder head valve of the medicament steel cylinder to detect the pressure condition in the medicament steel cylinder, and once the pressure is abnormal, an alarm signal is output.
In the existing partial pressure sensor, a pressure sensitive element is arranged in an inner cavity of a shell, the pressure sensitive element is generally provided with a metal shell, one end of the pressure sensitive element is in contact with the outside through a pressure transmission hole and bears pressure, the other end of the pressure sensitive element is electrically connected with a signal processing assembly in the inner cavity of the shell of the pressure sensor, in order to prevent the pressure from leaking from one end of the pressure sensitive element to the inner cavity of the shell and prevent the pressure sensitive element from moving to the inner cavity of the shell under the pressure, the pressure sensitive element and the inner cavity of the shell are welded and sealed, but a welding seam simultaneously bears the requirements of sealing and fixing, if the welding is defective, a crack is easily generated under the action of long-term high pressure, so that the pressure leakage is caused, the precision and the accuracy of pressure measurement are influenced, and adverse results are generated in the safe use of a dosing agent steel cylinder.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problem that the pressure sensitive element of the high-pressure sensor used on the medicament steel cylinder of the existing automatic fire extinguishing system is fixed by only one welding seam, and the pressure leakage possibility is higher, thereby providing a pressure monitoring and sensing digital display alarm device of the automatic fire extinguishing system with simple structure, convenient use and low pressure leakage possibility.
In order to achieve the above object, the utility model provides a following technical scheme:
a pressure monitoring and sensing digital display alarm device of an automatic fire extinguishing system comprises an alarm device and a pressure sensor arranged on a medicament steel cylinder, wherein the pressure sensor comprises a shell, the shell is provided with a pressure cavity and a working cavity, a pressure sensitive component is arranged in the pressure cavity, the pressure sensitive component comprises a metal shell, a power supply and a signal processing component are arranged in the working cavity, one side of the pressure cavity is provided with a pressure channel communicated with the outside, the other side of the pressure cavity is connected with the working cavity and is provided with a connecting through hole, one end of the pressure sensitive component is communicated with the pressure channel, the end surface of the other end of the pressure sensitive component is tightly matched with the plane on the inner side of the pressure cavity, and the diameter of the connecting through hole is smaller than the inner diameter of the metal shell of the pressure sensitive component; the pressure sensitive assembly is connected with the power supply and the signal processing assembly through cables, the cables penetrate through the connecting through holes, and the pressure sensitive assembly is connected with the alarm device.
The pressure sensor is arranged on a bottle head valve of a medicament steel bottle, the pressure sensitive component bears pressure from the direction of a pressure channel communicated with the inner cavity of the medicament steel bottle, the scheme is to solve the problem that the pressure sensitive component is only fixed by a welding seam, a bayonet for preventing the pressure sensitive component from passing is arranged in the direction in which the pressure sensitive component is likely to be stressed to move (from the direction of the pressure channel to a connecting through hole), namely, a baffle structure is arranged in a shell, and the connecting through hole with the diameter smaller than the inner diameter of a metal shell of the pressure sensitive component is arranged on the baffle to facilitate the passing of a cable.
As the utility model discloses preferred scheme, pressure chamber and working chamber junction be equipped with the tight briquetting in top, the tight briquetting in top and the inboard fixed connection of casing, the tight briquetting in top middle part be equipped with connect the via hole, the tight briquetting in top and the sensitive subassembly welded fastening of pressure. The scheme is a front-mounted pressure sensor, namely, a pressure sensitive component is plugged into a shell from an installation display port and welded with the inner wall of the shell to seal a welding seam, then a pressing block is adopted to support the pressure sensitive component, and the pressing block is welded and fixed with the inner cavity of the shell, and the welding seam is long in length and can bear large pressure.
As the utility model discloses preferred scheme, the casing be equipped with a side end face of pressure passageway on be equipped with can dismantle sealing connection's double-screw bolt casing with the casing, the casing on be equipped with the internal thread, the double-screw bolt casing outside be equipped with the external screw thread, working chamber and pressure chamber junction be equipped with and block the step, block the step middle part and be equipped with connect the through-hole, the double-screw bolt casing in terminal surface and the sensitive subassembly welded fastening of pressure. The scheme is that the rear-mounted pressure sensor is characterized in that an opening is also formed in another point of a shell except for an installation display port, a detachable stud shell is arranged at the opening, a pressure sensitive component is plugged into the stud shell and then is fixed with the stud shell in a welding and sealing mode, the stud shell is fixedly connected with the shell in a threaded mode, a sealing structure is arranged at the connection position of the stud shell and the shell, the end faces of the stud shell and the pressure sensitive component are attached to the surface of a blocking step after installation, and a cable enters a shell working cavity from a connecting through hole.
As the utility model discloses preferred scheme, casing side end face on be equipped with the pressure passageway with the pressure chamber intercommunication, casing opposite side end face be equipped with installation display mouth, the casing side be equipped with the plug wire seat, power and signal processing subassembly include wiring socket board, digital display subassembly, wiring socket board fix in the working chamber, digital display subassembly include signal processing digital display board, transparent table lid, table lid circle, stopper, table lid circle can dismantle to fix in the casing outside, transparent table lid locate the installation display mouth outside, transparent table lid and table lid circle paste tightly and paste tightly through stopper and signal processing digital display board, signal processing digital display board fixed with wiring socket board, wiring socket board be connected with plug wire seat, signal processing digital display board, pressure sensitive subassembly electricity respectively. In the scheme, the shell is provided with a pressure input port, pressure signals can be directly converted into digital signals to be displayed on a signal processing digital display panel, and the side plug wire seat of the shell can be connected with an external power supply and a signal receiving device.
As the utility model discloses preferred scheme, power and signal processing subassembly be equipped with the signal line of being connected with outside alarm device, the signal line be connected with the plug wire seat electricity of locating the casing side. The high-pressure leakage-preventing pressure sensor transmits measured pressure signals to external equipment, comprises an external alarm device, and can send alarm signals when the external alarm device judges that the pressure exceeds a warning value.
As the preferred scheme of the utility model, signal processing digital display board be equipped with the warning display area. According to the scheme, according to the preset pressure signal value, the power supply and signal processing assembly directly sends out the alarm signal after the pressure signal overflows the set value, and the alarm signal is displayed on the signal processing display panel.
According to different fire extinguishing agent media and gas pressures of the automatic fire extinguishing system, a charging pressure upper limit alarm output signal and a charging pressure lower limit alarm output signal are set to a signal processor and a sound-light alarm of an alarm device, and the alarm device is used for monitoring the working of a steel cylinder of the fire extinguishing system in a normal working pressure state; when the automatic fire extinguishing system is in a working state, the pressure of the medicament steel cylinder of the automatic fire extinguishing system is overloaded when being higher than the set upper limit pressure or leaked when being lower than the set lower limit pressure, the alarm device can give out sound and light alarm, and the signal processor of the alarm device is additionally provided with a signal output interface and can transmit signals to the elimination control center as required.
Compared with the prior art, the beneficial effects of the utility model are that: simple structure, convenient to use, pressure leak the possibility low.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic diagram of an internal structure of embodiment 1 of the present invention.
Fig. 3 is a schematic structural explosion diagram of embodiment 1 of the present invention.
Fig. 4 is an internal schematic view of embodiment 2 of the present invention.
Fig. 5 is an explosion diagram of embodiment 2 of the present invention.
Fig. 6 is a schematic structural view of a stud housing and a pressure sensitive assembly according to embodiment 2 of the present invention.
Fig. 7 is a schematic structural view of the external alarm device of the present invention.
Fig. 8 is an external schematic structural diagram of the signal processing digital display panel of the present invention.
In the figure: 1. casing 2, pressure chamber 3, working chamber 4, pressure sensitive component
5. Pressure channel 6, connecting through hole 7 and installation display port
8. Plug wire seat 9, wiring socket board 10 and signal processing digital display board
11. Transparent watch cover 12, watch cover ring 13, limiting block 14 and jacking pressing block
15. Stud housing 16, stop step 17, external alarm device
18. And an alarm display area.
Detailed Description
In order to facilitate understanding of the invention, the invention will be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the invention are shown, but which can be embodied in many different forms and are not limited to the embodiments described herein, but rather are provided for the purpose of making the disclosure more thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
Referring to fig. 1-6, the present invention provides a technical solution:
a pressure monitoring sensing digital display alarm device of an automatic fire extinguishing system comprises an alarm device and a pressure sensor arranged on a medicament steel cylinder, wherein the pressure sensor comprises a shell 1, the shell 1 is provided with a pressure cavity 2 and a working cavity 3, a pressure sensitive component 4 is arranged in the pressure cavity 2, the pressure sensitive component 4 comprises a metal shell, a power supply and signal processing component is arranged in the working cavity 3, one side of the pressure cavity 2 is provided with a pressure channel 5 communicated with the outside, the other side of the pressure cavity 2 is connected with the working cavity 3 and is provided with a connecting through hole 6, one end of the pressure sensitive component 4 is communicated with the pressure channel 5, the end face of the other end of the pressure sensitive component 4 is tightly matched with the plane inside the pressure cavity 2, and the diameter of the connecting through hole 6 is smaller than the inner diameter of the metal shell of the pressure sensitive component 4; the pressure sensitive component 4 is connected with the power supply and signal processing component through a cable, the cable penetrates through the connecting through hole 6, and the pressure sensitive component is connected with the alarm device.
The pressure channel 5 communicated with the pressure cavity 2 is arranged on the end face of one side of the shell 1, the installation display opening 7 is arranged on the end face of the other side of the shell 1, the wire plugging seat 8 is arranged on the side face of the shell 1, the power supply and signal processing assembly comprises a wiring socket board 9 and a digital display assembly, the wiring socket board 9 is fixed in the working cavity 3, the digital display assembly comprises a signal processing digital display board 10, a transparent meter cover 11, a meter cover ring 12 and a limiting block 13, the meter cover ring 12 is detachably fixed on the outer side of the shell 1, the transparent meter cover 11 is arranged on the outer side of the installation display opening 7, the transparent meter cover 11 is tightly attached to the meter cover ring 12 and tightly attached to the signal processing digital display board 10 through the limiting block 13, the signal processing digital display board 10 is fixed to the wiring socket board 9, and the wiring socket board 9 is respectively electrically connected with the wire plugging seat 8, the signal processing digital display board 10 and the pressure sensitive assembly 4.
In embodiment 1, as shown in fig. 2-3, a pressing block 14 is disposed at the joint of the pressure chamber 2 and the working chamber 3, the pressing block 14 is fixedly connected with the inner side of the casing 1, a connecting through hole 6 is disposed in the middle of the pressing block 14, and the pressing block 14 is welded and fixed to the pressure sensitive component 4.
In embodiment 2, as shown in fig. 4 to 6, a stud housing 15 detachably and hermetically connected to the housing 1 is disposed on an end surface of the housing 1 on one side of the pressure channel 5, internal threads are disposed on the housing 1, external threads are disposed on an outer side of the stud housing 15, a blocking step 16 is disposed at a joint of the working chamber 3 and the pressure chamber 2, a connecting through hole 6 is disposed in a middle of the blocking step 16, and an inner end surface of the stud housing 15 is welded to the pressure sensitive component 4.
As shown in fig. 7, the power supply and signal processing unit is provided with a signal line connected to an external alarm device 17, and the signal line is electrically connected to a plug socket 8 provided on a side surface of the housing 1.
As shown in fig. 8, the signal processing digital display panel 10 is provided with an alarm display area 18.
The utility model discloses work flow: when the pressure-sensitive type chemical bottle is used, one end of the shell 1, which is provided with the pressure channel 5, is communicated and fixed with a chemical steel bottle and is connected with a power supply and an external signal receiving device through the plug wire seat 8, the pressure in the chemical steel bottle enters the pressure cavity and is contacted with the pressure-sensitive component 4, the pressure-sensitive component 4 transmits a pressure signal to the wiring socket board 9, the wiring socket board 9 converts the pressure signal and then transmits the pressure signal to the signal processing digital display board 10 for display, and the pressure signal can be transmitted outside through the plug wire seat 8;
after the pressure in the medicament steel cylinder acts on the pressure sensitive component 4, the pressure sensitive component 4 is blocked by the jacking pressing block 14 in embodiment 1 or the blocking step 16 in embodiment 2, and the pressure is transmitted to the jacking pressing block 14 and the blocking step 16, so that the possibility of leakage of the sealing weld between the pressure sensitive component 4 and the shell 1 or between the pressure sensitive component 4 and the stud shell 15 is greatly reduced.
When the pressure signal in the medicament steel cylinder is abnormal, the external alarm device 17 or/and the alarm display area 18 of the signal processing digital display panel 10 send out an alarm signal.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an automatic fire extinguishing systems pressure monitoring sensing digital display alarm device, includes alarm device, locates the pressure sensor on the medicament steel bottle, and pressure sensor includes the casing, and the casing is equipped with pressure chamber, working chamber, is equipped with the pressure sensitive subassembly in the pressure chamber, and the pressure sensitive subassembly includes metal casing, is equipped with power and signal processing subassembly, its characterized in that in the working chamber: one side of the pressure cavity is provided with a pressure channel communicated with the outside, the other side of the pressure cavity is connected with the working cavity and is provided with a connecting through hole, one end of the pressure sensitive component is communicated with the pressure channel, the end surface of the other end of the pressure sensitive component is tightly matched with the inner side plane of the pressure cavity, and the diameter of the connecting through hole is smaller than the inner diameter of the metal shell of the pressure sensitive component; the pressure sensitive assembly is connected with the power supply and the signal processing assembly through cables, the cables penetrate through the connecting through holes, and the pressure sensitive assembly is connected with the alarm device.
2. The automatic fire extinguishing system pressure monitoring and sensing digital display alarm device according to claim 1, characterized in that: the double-screw bolt sealing device is characterized in that a double-screw bolt shell which is detachably connected with the shell in a sealing mode is arranged on the end face, on one side of the shell, provided with a pressure channel, of the side, an internal thread is arranged on the shell, an external thread is arranged on the outer side of the double-screw bolt shell, a blocking step is arranged at the joint of the working cavity and the pressure cavity, a connecting through hole is formed in the middle of the blocking step, and the inner end face of the double-screw bolt shell is welded and fixed with the pressure sensitive component.
3. The automatic fire extinguishing system pressure monitoring and sensing digital display alarm device according to claim 1, characterized in that: the pressure cavity and the working cavity are connected through a jacking pressing block, the jacking pressing block is fixedly connected with the inner side of the shell, a connecting through hole is formed in the middle of the jacking pressing block, and the jacking pressing block is welded and fixed with the pressure sensitive component.
4. The automatic fire extinguishing system pressure monitoring and sensing digital display alarm device according to claim 1, characterized in that: the utility model discloses a pressure instrument, including casing side end face, power and signal processing subassembly, transparent table lid, table lid ring, stopper, the casing side be equipped with the plug wire seat, power and signal processing subassembly include wiring socket board, digital display subassembly, wiring socket board fix in the work intracavity, digital display subassembly include signal processing digital display board, transparent table lid, table lid ring, stopper, table lid ring can dismantle to fix in the casing outside, transparent table lid locate the installation and show mouthful outside, transparent table lid and table lid ring paste tightly and paste tightly through stopper and signal processing digital display board, signal processing digital display board fixed with the wiring socket board, the wiring socket board respectively with plug wire seat, signal processing digital display board, pressure sensitive subassembly electricity be connected.
5. The automatic fire extinguishing system pressure monitoring and sensing digital display alarm device according to claim 1, characterized in that: the power supply and signal processing assembly is provided with a signal wire connected with the alarm device, and the signal wire is electrically connected with a plug wire seat arranged on the side surface of the shell.
6. The automatic fire extinguishing system pressure monitoring and sensing digital display alarm device as claimed in claim 4, wherein: the alarm device comprises an alarm display area, and the alarm display area is arranged on the signal processing digital display panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222461274.3U CN218121251U (en) | 2022-09-16 | 2022-09-16 | Pressure monitoring sensing digital display alarm device of automatic fire extinguishing system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222461274.3U CN218121251U (en) | 2022-09-16 | 2022-09-16 | Pressure monitoring sensing digital display alarm device of automatic fire extinguishing system |
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| Publication Number | Publication Date |
|---|---|
| CN218121251U true CN218121251U (en) | 2022-12-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222461274.3U Active CN218121251U (en) | 2022-09-16 | 2022-09-16 | Pressure monitoring sensing digital display alarm device of automatic fire extinguishing system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218121251U (en) |
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2022
- 2022-09-16 CN CN202222461274.3U patent/CN218121251U/en active Active
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