Active fire extinguishing reactive compensation cabinet

Abstract

The utility model relates to the technical field of electrical equipment, in particular to an active fire-extinguishing reactive compensation cabinet, which is provided with a cabinet body and a fire-extinguishing component, the cabinet body is used for mounting electrical components, the fire-extinguishing component comprises a steel cylinder and a fire detection tube, the steel cylinder is mounted on one side of the cabinet body, one end of the fire detection tube is connected with the gas outlet end of the steel cylinder, and the other end of the fire detection tube is connected with the gas outlet end of the steel cylinder. The other end of the fire detection tube extends into the cabinet body from one side of the cabinet body and extends out of the other side of the cabinet body, and the fire detection tube is close to each electrical component in the cabinet body; the steel cylinder is used for storing a fire extinguishing agent, fire extinguishing gas is filled in the fire detection tube, and the fire detection tube is made of a material which is easy to break at high temperature; therefore, when the active fire extinguishing reactive compensation cabinet is on fire, the fire detection tube is close to the monitored electrical apparatus element in the cabinet body, and when the monitored electrical apparatus element generates high temperature, the fire detection tube is exploded under the action of high temperature and internal gas pressure, so that fire extinguishing gas in the fire detection tube is ejected from the explosion position; and meanwhile, the fire extinguishing agent in the steel cylinder enters the fire detection tube so as to continuously spray fire extinguishing substances towards the fire position, so that the flame at the fire position is quickly extinguished.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power equipment, in particular to an active fire extinguishing non-power compensation cabinet. Background Art

[0002] Reactive power compensation, full name reactive power compensation, is a technology that can improve the power factor and power supply efficiency of the power grid in the power supply system, reduce the loss of power supply transformers and transmission lines, and improve the power supply environment; reactive power compensation cabinet is a device used to provide reactive power compensation in the power supply system. Reactive power compensation cabinets are used frequently and are prone to high-temperature fires. In addition, a large number of electrical components are installed inside the reactive power compensation cabinet. Once an electrical fire occurs, if it is not extinguished in time, it will cause a large number of electrical components to be damaged, causing difficulties for subsequent maintenance.

[0003] In order to solve the above technical problems, the technical solution of the Chinese utility model patent announcement with patent application number CN202023027586.0 is an automatic fire extinguishing low-voltage capacitor compensation cabinet, including a cabinet body, a cabinet door is hingedly installed on the cabinet body, a smoke sensor is detachably installed on the left side of the inner wall of the cabinet, a support block is fixedly installed on the bottom of the right side of the inner wall of the cabinet, a contact switch is detachably installed on the top of the support block, a slide rail is detachably installed on the right side of the inner wall of the cabinet, the slide rail is inlaid with a baffle for sliding, a mounting block is detachably installed on the right side of the inner wall of the cabinet, an electromagnet is detachably installed on the inner wall of the mounting block, and the top of the inner wall of the cabinet A nozzle is installed in the connection, a pump is movably installed on the top of the outer wall of the cabinet, an inlaid sleeve is detachably installed on the top of the outer wall of the cabinet, a carbon dioxide cylinder is inlaid and installed in the inlaid sleeve, and a heat dissipation groove is opened on the right side of the inner wall of the cabinet; the utility model monitors whether there is a fire inside the cabinet through a smoke sensor. When a fire occurs, the smoke sensor controls the electromagnet to cut off the power, the baffle slides down to trigger the contact switch, and the pump sends the gas inside the carbon dioxide cylinder into the cabinet through the nozzle, and the carbon dioxide quickly fills the inside of the cabinet to achieve rapid fire extinguishing; the baffle is used to close the heat dissipation groove so that the inside of the cabinet is quickly filled with carbon dioxide.

[0004] However, the above-mentioned prior art has the following technical problems: the automatic fire extinguishing low-voltage capacitor compensation cabinet sends carbon dioxide into the cabinet through the nozzle on the top, so that the carbon dioxide quickly fills the cabinet, thereby extinguishing the flame at the fire. However, when the fire is far away from the nozzle, the carbon dioxide cannot reach the fire in time to extinguish the fire, resulting in a long fire time and damage to the electrical components at the fire. Utility Model Content

[0005] In view of this, it is necessary to provide an active fire extinguishing power-free compensation cabinet that can promptly extinguish the flame at the fire site, so as to reduce the fire time and protect the electrical components at the fire site.

[0006] The utility model provides an active fire extinguishing power-free compensation cabinet, comprising a cabinet body and a fire extinguishing assembly, wherein the cabinet body is used to install electrical components, and the fire extinguishing assembly comprises a steel cylinder and a fire detection tube, wherein the steel cylinder is installed at one side of the cabinet body, one end of the fire detection tube is connected to the gas outlet end of the steel cylinder, and the other end extends from one side of the cabinet body and extends from the other side of the cabinet body, and the fire detection tube is close to the monitored electrical components in the cabinet body; the steel cylinder is used to store fire extinguishing agent, wherein the air pressure value in the fire detection tube corresponds to the air pressure value of the fire extinguishing agent in the steel cylinder, and the fire detection tube is made of a material that is easily broken by high temperature, so that the fire detection tube can be burned when a fire occurs in the compensation cabinet, so that the fire extinguishing gas in the fire detection tube is sprayed out from the broken opening to achieve fire extinguishing.

[0007] Preferably, a one-way valve is provided at the end of the fire detection tube that is not connected to the steel cylinder, and a second pressure gauge for displaying the air pressure in the fire detection tube is provided on the one-way valve.

[0008] Preferably, a fixing plate and a fixing hoop are provided on one side of the cabinet, wherein the fixing plate is used to fix the bottom end of the steel cylinder, and the fixing hoop is used to fix the side of the steel cylinder.

[0009] Preferably, a container valve is installed on the gas outlet end of the steel cylinder, and an adapter and a first pressure gauge are installed on the container valve. The adapter is used to connect to the fire detection tube, and the first pressure gauge is used to display the gas pressure in the steel cylinder.

[0010] Preferably, the active fire extinguishing power-free compensation cabinet also includes an alarm component, which includes an air pressure detection tube, an air pressure detector and an audible and visual alarm. The two ends of the air pressure detection tube are respectively connected to the container valve and the adapter. The detection end of the air pressure detector is installed on the adapter. The air pressure detector and the audible and visual alarm are electrically connected. The air pressure detector is used to detect the air pressure in the air pressure detection tube and send a signal to the audible and visual alarm according to the air pressure in the air pressure detection tube. The audible and visual alarm is used to send an audible and visual alarm signal to notify the staff.

[0011] Preferably, the active fire extinguishing power-free compensation cabinet also includes an adjustment component, which includes two slide rails with the same structure, N first screw rods, 2N first nut seats and 2N height adjustment parts, each slide rail is installed on the top of both sides of the interior of the cabinet, the two ends of each first screw rod are respectively fixedly installed on the slider of each slide rail, each first nut seat can be slidably installed on the first screw rod, each height adjustment part is installed on a first nut seat, the fire detection tube is installed on the height adjustment part, and the height adjustment part is used to adjust the height of the fire detection tube in the cabinet; wherein N≥1.

[0012] Preferably, each first nut seat is provided with a rotating handle to facilitate the rotation of the first nut seat.

[0013] Preferably, each height adjustment member includes a spool, a positioning rope and a buckle, the spool is rotatably mounted on one of the first nut seats, the positioning rope is wrapped around the spool so that the length of the positioning rope extended can be adjusted by rotating the spool, and the positioning rope is provided with a plurality of first hooks, and the first hooks are used to install the fire detection tube; the buckle is slidably mounted on the first nut seat corresponding to the spool, the spool is provided with a plurality of fixing grooves along the circumferential direction of the spool, and the buckle is provided with at least one fixing protrusion so that the spool can be fixed by sliding the buckle so that the fixing groove and the fixing protrusion are engaged.

[0014] Preferably, each spool is provided with a pull rod to facilitate the rotation of the spool.

[0015] Preferably, each height adjustment member includes a second screw rod and several second nut seats, one end of the second screw rod is rotatably mounted on a first nut seat, and the other end is slidably mounted on the bottom of the cabinet, and the second screw rod is parallel to the vertical direction of the cabinet, each second nut seat can be slidably mounted on the second screw rod, and each second nut seat is provided with a second hook, and the second hook is used to install the fire detection tube.

[0016] The above-mentioned active fire extinguishing power-free compensation cabinet includes a cabinet body and a fire extinguishing assembly. The cabinet body is used to install electrical components. The fire extinguishing assembly includes a steel cylinder and a fire detection tube. The steel cylinder is installed on one side of the cabinet body. One end of the fire detection tube is connected to the gas outlet end of the steel cylinder, and the other end extends from one side of the cabinet body and extends from the other side of the cabinet body, and the fire detection tube is close to the monitored electrical components in the cabinet body; the steel cylinder is used to store fire extinguishing agent, and the fire detection tube is filled with fire extinguishing gas. The fire detection tube is made of a material that is easily broken by high temperature; in this way, when a fire occurs in the active fire extinguishing power-free compensation cabinet, since the fire detection tube is close to the monitored electrical components in the cabinet body, when the monitored electrical components generate high temperature, the fire detection tube explodes under the action of high temperature and internal gas pressure, so that the fire extinguishing gas in the fire detection tube is ejected from the explosion point, and at the same time, the fire extinguishing agent in the steel cylinder enters the fire detection tube to continuously spray fire-extinguishing substances toward the fire place, thereby quickly extinguishing the flame at the fire place, reducing the fire time, and protecting the electrical components at the fire place. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is an oblique bird's-eye view of the active fire extinguishing power-free compensation cabinet of the present application.

[0018] Figure 2 It is an oblique upward view of the active fire extinguishing power-free compensation cabinet of the present application.

[0019] Figure 3 This is an oblique bird's-eye view of the cabinet of the present application.

[0020] Figure 4It is an oblique bird's-eye view of the cylinder portion of the fire extinguishing assembly of the present application.

[0021] Figure 5 This is an oblique bird's-eye view of the adjustment assembly equipped with a fire detection tube when the height adjustment member of the present application adopts the first embodiment.

[0022] Figure 6 This is an oblique bird's-eye view of the adjustment assembly when the height adjustment member of the present application adopts the first embodiment and is not equipped with a fire detection tube.

[0023] Figure 7 It is an oblique top-down view of the first nut seat portion of the adjustment assembly of the present application.

[0024] Figure 8 This is a disassembled view of the first nut seat portion of the adjustment assembly of the present application.

[0025] In the figure: active fire extinguishing power-free compensation cabinet 10, cabinet body 20, fixing plate 21, fixing hoop 22, fire extinguishing assembly 30, cylinder 31, fire detection tube 32, container valve 33, adapter 34, first pressure gauge 35, alarm assembly 40, air pressure detection tube 41, air pressure detector 42, sound and light alarm 43, adjustment assembly 50, slide rail 51, first screw rod 52, first nut seat 53, rotating handle 531, height adjustment member 54, spool 541, positioning rope 542, buckle 543, first hook 544, fixing groove 545, fixing protrusion 546, and pull rod 547. DETAILED DESCRIPTION

[0026] The technical scheme and technical effects of the embodiments of the present invention are further described in detail below in conjunction with the accompanying drawings of the present invention.

[0027] Please refer to Figure 1 to Figure 2The utility model provides an active fire extinguishing power-free compensation cabinet 10, including a cabinet 20 and a fire extinguishing assembly 30. The cabinet 20 is used to install electrical components. The fire extinguishing assembly 30 includes a steel cylinder 31 and a fire detection tube 32. The steel cylinder 31 is installed on one side of the cabinet 20. One end of the fire detection tube 32 is connected to the gas outlet end of the steel cylinder 31, and the other end extends from one side of the cabinet 20 and extends from the other side of the cabinet 20. The fire detection tube 32 is close to the monitored electrical components in the cabinet 20, so that when the monitored electrical components catch fire, the fire extinguishing gas can be sprayed to the fire place in time; the steel cylinder 31 is used to store fire extinguishing agent, such as dry powder, carbon dioxide, water and foam, etc., and the fire detection tube 32 is filled with There is a fire extinguishing gas, for example, nitrogen and carbon dioxide gas, and the fire detection tube is made of a material that is easily broken by high temperature, for example, polycarbonate, so that when a fire occurs in the compensation cabinet, the fire detection tube is burned, and the fire extinguishing gas in the fire detection tube is ejected from the broken part to achieve fire extinguishing; in this way, when a fire occurs in the active fire extinguishing power-free compensation cabinet 10, the fire detection tube 32 is softened and exploded under the high temperature burning of the flame at the fire location, so that the fire extinguishing gas in the fire detection tube 32 is ejected from the exploded part, and at the same time, the fire extinguishing agent in the cylinder 31 enters the fire detection tube 32 to continuously spray fire-extinguishing substances toward the fire location, thereby quickly extinguishing the flame at the fire location, reducing the fire time, and protecting the electrical components at the fire location.

[0028] In this embodiment, a one-way valve is installed at the end of the fire detection tube 32 that is not connected to the cylinder 31, which is used to seal the fire detection tube 32 to prevent the fire extinguishing gas in the fire detection tube 32 from leaking out. The one-way valve is equipped with a second pressure gauge for displaying the air pressure in the fire detection tube 32, so that the operator can confirm whether the air pressure in the fire detection tube 32 is the same as the predetermined air pressure, so as to promptly inspect and maintain the active fire extinguishing non-power compensation cabinet 10 when the air pressure in the fire detection tube 32 is abnormal, so that the active fire extinguishing non-power compensation cabinet 10 can work normally.

[0029] Please refer to Figure 3 In this embodiment, a fixing plate 21 and a fixing hoop 22 are provided on one side of the cabinet 20. The fixing plate 21 is used to fix the bottom end of the steel cylinder 31, and the fixing hoop 22 is used to fix the side of the steel cylinder 31. In this way, the steel cylinder 31 is fixed to the cabinet 20 by the fixing plate 21 and the fixing hoop 22.

[0030] Please refer to Figure 4 Furthermore, a container valve 33 is installed on the gas outlet end of the steel cylinder 31, and an adapter 34 and a first pressure gauge 35 are installed on the container valve 33. The adapter 34 is used to connect with the fire detection tube 32 to deliver the fire extinguishing agent in the steel cylinder 31 into the fire detection tube 32, and the first pressure gauge 35 is used to display the air pressure in the steel cylinder 31.

[0031] In this embodiment, gas is charged into the fire detection tube 32 through the gas charging device, and the gas pressure of the fire extinguishing gas in the fire detection tube 32 reaches 1.5Mpa. Under this gas pressure, the container valve 33 connected to the fire detection tube 32 will be in a normally open state, so that when a fire occurs in the cabinet 20, the container valve 33 can continuously transport the fire extinguishing agent stored in the cylinder 31 to the fire detection tube 32 to extinguish the flame at the fire location in time. The gas charged is nitrogen, carbon dioxide gas, etc.

[0032] Furthermore, the active fire extinguishing power-free compensation cabinet 10 also includes an alarm component 40, which includes an air pressure detection tube 41, an air pressure detector 42 and an audible and visual alarm 43. The two ends of the air pressure detection tube 41 are respectively connected to the container valve 33 and the adapter 34, and the detection end of the air pressure detector 42 is installed on the adapter 34. The air pressure detector 42 and the audible and visual alarm 43 are electrically connected. The air pressure detector 42 is used to detect the air pressure in the air pressure detection tube 41, and send a signal to the audible and visual alarm 43 according to the air pressure in the air pressure detection tube 41. The audible and visual alarm 43 is used to send an audible and visual alarm signal. The staff knows that, in this way, a fire occurs in the active fire extinguishing powerless compensation cabinet 10, the fire detection tube 32 is softened and exploded under the high temperature of the flame at the fire location, and when the fire extinguishing gas is ejected from the explosion point of the fire detection tube 32 toward the fire location, the air pressure in the air pressure detection tube 41 decreases synchronously with the decrease in the air pressure in the fire detection tube 32. When the air pressure detector 42 detects that the air pressure decrease in the air pressure detection tube 41 reaches a predetermined value, a start signal is sent to the sound and light alarm 43. After receiving the start signal, the sound and light alarm 43 emits a sound and light alarm to remind the staff that a fire has occurred in the active fire extinguishing powerless compensation cabinet 10.

[0033] In this embodiment, the air pressure detector 42 is connected to the adapter 34 via a signal adapter.

[0034] Please refer to Figures 5 to 8 Furthermore, the active fire extinguishing power-free compensation cabinet 10 also includes an adjustment component 50, which includes two slide rails 51 of the same structure, N first screw rods 52, 2N first nut seats 53 and 2N height adjustment members 54, each slide rail 51 is installed on the top of both sides of the cabinet 20, and the two ends of each first screw rod 52 are respectively fixedly installed on the slider of each slide rail 51, and each first nut seat 53 can be slidably installed on the first screw rod 52; each height adjustment member 54 is installed on a first nut seat 53, and the fire detection tube 32 is installed on the height adjustment member 54, and the height adjustment member 54 is used to adjust the height of the fire detection tube 32 in the cabinet; wherein N≥1.

[0035] In this embodiment, each first nut seat 53 is provided with a rotating handle 531, so that the staff can rotate the first nut seat 53 by rotating the handle 531 to move the first nut seat 53 left and right on the first screw rod 52, thereby adjusting the left and right position of the positioning rope 542 in the cabinet 20.

[0036] In one embodiment, each height adjustment member 54 includes a spool 541, a positioning rope 542 and a buckle 543. The spool 541 is rotatably mounted on a first nut seat 53. The positioning rope 542 is wound around the spool so that the length of the positioning rope 542 can be adjusted by rotating the spool 541. The positioning rope 542 is provided with a plurality of first hooks 544. The first hooks 544 are used to install the fire detection tube 32. The buckle 543 is slidably mounted on the first nut seat 53 corresponding to the spool 541. The spool 541 is arranged along the spool 542. A plurality of fixing grooves 545 are provided in the circumferential direction of 41, and at least one fixing protrusion 546 is provided on the buckle, so that the spool 541 is fixed by engaging the fixing grooves 545 and the fixing protrusions 546 through the sliding buckle 543. In this way, when it is necessary to adjust the height of the fire detection tube 32 in the cabinet 20, it is only necessary to rotate the spool 541 to change the extended length of the positioning rope 542, thereby changing the height of each first hook 544 on the positioning rope 542 to adjust the height of the fire detection tube 32 installed on each first hook 544 in the cabinet 20.

[0037] In this embodiment, each spool 541 is provided with a pull rod 547 , so that a worker can pull the spool 541 to rotate through the pull rod 547 , thereby adjusting the height of each first hook 544 .

[0038] In the present embodiment, when it is necessary to adjust the front and rear position of the positioning rope 542 in the cabinet 20, it is only necessary to move the slider to make the first screw rod 52 move back and forth in the cabinet 20, so as to drive the first nut seat 53 installed on the first screw rod 52 to move back and forth, thereby making the spool 541 installed on the first nut seat 53 move back and forth, and finally driving the positioning rope 542 installed on the spool 541 to move back and forth, so as to achieve the front and rear position adjustment of the positioning rope 542 in the cabinet 20; when it is necessary to adjust the left and right position of the positioning rope 542 in the cabinet 20, it is only necessary to rotate the first nut seat 53 to make the first nut seat 53 move left and right on the first screw rod 52, so as to make the spool 541 installed on the first nut seat 53 move left and right, and finally drive the positioning rope 542 installed on the spool 541 to move left and right, so as to achieve the positioning rope 542 is adjusted in the left and right position in the cabinet 20; when it is necessary to adjust the length of the positioning rope 542, it is only necessary to rotate the spool 541 to achieve the length adjustment of the positioning rope 542; in this way, by adjusting the front and rear position, left and right position and length of the positioning rope 542 in the cabinet 20, the front and rear position, left and right position and up and down position of the first hook 544 in the cabinet 20 can be adjusted, so as to achieve the front and rear position, left and right position and up and down position adjustment of the fire detection tube 32 installed on the first hook 544 in the cabinet 20, so as to adjust the position of the fire detection tube 32 according to the position of the monitored electrical component in the cabinet 20, so that the fire detection tube 32 is close to the monitored electrical component, so that when the monitored electrical component catches fire, the fire detection tube 32 can promptly spray fire-extinguishing substances toward the fire to reduce the fire time and protect the monitored electrical components.

[0039] In one embodiment, each height adjustment member includes a second screw rod and a plurality of second nut seats, one end of the second screw rod is rotatably mounted on a first nut seat 53, and the other end is slidably mounted on the bottom of the cabinet 20, and the second screw rod is parallel to the vertical direction of the cabinet 20, each second nut seat can be slidably mounted on the second screw rod, and each second nut seat is provided with a second hook, and the second hook is used to install the fire detection tube. In this way, when the height of the fire detection tube 32 in the cabinet 20 needs to be adjusted, it is only necessary to adjust the height of each nut seat on the second screw rod to adjust the height of each second hook on the second screw rod, thereby adjusting the height of the fire detection tube 32 installed on each second hook in the cabinet 20.

[0040] The steps for installing the active fire extinguishing powerless compensation cabinet 10 are as follows:

[0041] 1. Install the container valve 33 on the steel cylinder 31, and install the first pressure gauge 35 and the adapter 34 on the container valve 33;

[0042] 2. Continue to charge the fire extinguishing agent into the cylinder 31 through the container valve 33 until the gas pressure in the cylinder 31 reaches 1.5 MPa;

[0043] 3. Connect the two ends of the air pressure detection tube 41 to the container valve 33 and the adapter 34 respectively, and install the air pressure detector 42 to the adapter 34 through the signal adapter;

[0044] 4. Place the steel cylinder 31 on the fixing plate 21 and fix the steel cylinder 31 to the cabinet 20 through the fixing hoop 22;

[0045] 5. Connect the fire detection tube 32 to the adapter 34, and connect the sound and light alarm 43 to the air pressure detector 42;

[0046] 6. According to the positions of the electrical components in the cabinet 20, use the adjustment assembly 50 to adjust the position of the fire detection tube 32 so that the fire detection tube 32 is close to the electrical components.

[0047] 7. Use a gas cylinder filled with fire extinguishing gas to inject gas into the fire detection tube 32 until the gas pressure in the fire detection tube 32 reaches 1.5 MPa;

[0048] 8. Install the second pressure gauge on the one-way valve and open the one-way valve appropriately so that the air pressure in the fire detection tube 32 is displayed in the second pressure gauge, and the installation of the active fire extinguishing power-free compensation cabinet 10 is completed.

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An active fire extinguishing powerless compensation cabinet, characterized in that: It includes a cabinet and a fire extinguishing assembly, the cabinet is used to install electrical components, the fire extinguishing assembly includes a steel cylinder and a fire detection tube, the steel cylinder is installed on one side of the cabinet, one end of the fire detection tube is connected to the gas outlet end of the steel cylinder, the other end extends into the cabinet from one side and extends out from the other side of the cabinet, and the fire detection tube is close to the monitored electrical components in the cabinet; the steel cylinder is used to store fire extinguishing agent, wherein the air pressure value in the fire detection tube corresponds to the air pressure value of the fire extinguishing agent in the steel cylinder, and the fire detection tube is made of a material that is easily broken by high temperature, so that the fire detection tube can be burned when a fire occurs in the compensation cabinet, so that the fire extinguishing gas in the fire detection tube is sprayed out from the broken hole to extinguish the fire.

2. The active fire extinguishing powerless compensation cabinet according to claim 1, characterized in that: A one-way valve is installed at the end of the fire detection tube that is not connected to the steel cylinder, and a second pressure gauge for displaying the air pressure in the fire detection tube is installed on the one-way valve.

3. The active fire extinguishing powerless compensation cabinet according to claim 1, characterized in that: A fixing plate and a fixing hoop are provided on one side of the cabinet, wherein the fixing plate is used to fix the bottom end of the steel cylinder, and the fixing hoop is used to fix the side of the steel cylinder.

4. The active fire extinguishing powerless compensation cabinet according to claim 1, characterized in that: A container valve is mounted on the gas outlet end of the steel cylinder, and an adapter and a first pressure gauge are mounted on the container valve. The adapter is used to connect to the fire detection tube, and the first pressure gauge is used to display the gas pressure in the steel cylinder.

5. The active fire extinguishing powerless compensation cabinet as claimed in claim 4, characterized in that: The active fire extinguishing power-free compensation cabinet also includes an alarm component, which includes an air pressure detection tube, an air pressure detector and an audible and visual alarm. The two ends of the air pressure detection tube are respectively connected to the container valve and the adapter. The detection end of the air pressure detector is installed on the adapter. The air pressure detector and the audible and visual alarm are electrically connected. The air pressure detector is used to detect the air pressure in the air pressure detection tube and send a signal to the audible and visual alarm according to the air pressure in the air pressure detection tube. The audible and visual alarm is used to send an audible and visual alarm signal to notify the staff.

6. The active fire extinguishing powerless compensation cabinet according to claim 1, characterized in that: The active fire extinguishing power-free compensation cabinet also includes an adjustment component, which includes two slide rails with the same structure, N first screw rods, 2N first nut seats and 2N height adjustment parts. Each slide rail is installed on the top of both sides of the cabinet body, and the two ends of each first screw rod are respectively fixedly installed on the slider of each slide rail. Each first nut seat can be slidably installed on the first screw rod, and each height adjustment part is installed on a first nut seat. The fire detection tube is installed on the height adjustment part, and the height adjustment part is used to adjust the height of the fire detection tube in the cabinet body; wherein N≥1.

7. The active fire extinguishing powerless compensation cabinet according to claim 6, characterized in that: Each first nut seat is provided with a rotating handle to facilitate the rotation of the first nut seat.

8. The active fire extinguishing powerless compensation cabinet according to claim 6, characterized in that: Each height adjustment member includes a spool, a positioning rope and a buckle. The spool is rotatably mounted on one of the first nut seats. The positioning rope is wrapped around the spool so that the length of the positioning rope can be adjusted by rotating the spool. The positioning rope is provided with a plurality of first hooks, and the first hooks are used to install the fire detection tube; the buckle is slidably mounted on the first nut seat corresponding to the spool. The spool is provided with a plurality of fixing grooves along the circumferential direction of the spool, and the buckle is provided with at least one fixing protrusion so that the spool can be fixed by sliding the buckle to engage the fixing groove and the fixing protrusion.

9. The active fire extinguishing powerless compensation cabinet according to claim 8, characterized in that: Each spool is equipped with a pull rod to facilitate turning the spool.

10. The active fire extinguishing powerless compensation cabinet according to claim 6, characterized in that: Each height adjustment member includes a second screw rod and several second nut seats, one end of the second screw rod is rotatably mounted on a first nut seat, and the other end is slidably mounted on the bottom of the cabinet, and the second screw rod is parallel to the vertical direction of the cabinet, each second nut seat can be slidably mounted on the second screw rod, and each second nut seat is provided with a second hook, and the second hook is used to install the fire detection tube.

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