CN207342068U - A kind of steel cylinder anti-explosion safety device - Google Patents

Abstract

The utility model discloses an explosion-proof safety device for a steel cylinder. A casing wall is arranged outside the steel cylinder, and a liquid with low thermal expansion and low volatility is filled between the casing wall and the steel cylinder. The liquid level is detected by a photoelectric liquid level detector, and It is transmitted to the alarm control box for detection to reflect the safety status of the steel cylinder. When the liquid level reaches a dangerous height, the alarm control box activates the pressure relief device to release the dangerous pressure. The utility model adopts the design of the water jacket method to detect the deformation information of the steel cylinder by adding a water jacket outside the fire-fighting steel cylinder, and then judges the deformation of the dangerous explosion to protect the safety of the steel cylinder. At home and abroad, it is difficult to carry out the regular inspection of the steel cylinders in use, which makes the regular inspection of the steel cylinders more convenient and efficient. safe and controllable use.

Description

An explosion-proof safety device for steel cylinders

technical field

The utility model relates to the technical field of fire protection, in particular to an explosion-proof safety device for steel cylinders.

Background technique

With the development of society and the continuous improvement of people's living standards, people's awareness of fire prevention continues to increase, and there are more and more fire protection products. The steel cylinders in the fire protection system are also increasingly appearing in the buildings of people's work and life. These fire-fighting steel cylinders are often filled with different levels of pressure in the steel cylinders during long-term use. Under the action of pressure, some steel cylinders develop gradually due to their natural structural defects or internal corrosion, until they explode suddenly, causing accidents that injure people and destroy property. Currently, there is an increasing risk of problem cylinders exploding over time.

The explosion safety of pressure steel cylinders has always been a difficult problem faced by the fire protection industry and pressure vessel industry in the whole country and even in the world. Due to the long service life of pressure cylinders, usually 20 or 30 years, the damage and corrosion of the internal and external structures of the cylinders due to various unfavorable factors, and the violation of regulations after the expiration of the period, all greatly reduce the explosion safety of the cylinders. At the same time, the country implements the GB/T13004-2016 "Periodic Inspection and Evaluation of Steel Seamless Gas Cylinders" standard, but it also faces the problem of difficult inspection and evaluation of fire-fighting steel cylinders in use.

Contents of the invention

The technical problem to be solved by the utility model is to overcome the existing defects and provide an explosion-proof safety device for steel cylinders, which has high safety, can avoid accidents caused by the explosion of steel cylinders, and can effectively solve the problems in the background technology.

In order to achieve the above purpose, the utility model provides the following technical solutions: an explosion-proof safety device for steel cylinders, including steel cylinders, the top of the steel cylinders is provided with an opening, a container valve is installed at the opening, and a safety valve is installed on the vent port on the side of the container valve. Diaphragm, and the end of the gas release port of the container valve is connected to the pressure relief device through a safety nut, and the electromagnetic mechanism inside the pressure relief device is connected with a pressure relief needle, which passes through the middle of the safety nut and extends To the inside of the vent port, the side of the steel cylinder is sleeved with a sleeve wall, and the inner side of the top of the sleeve wall is provided with a sleeve top seal, which is ring-shaped and sleeved on the top of the steel cylinder, and the bottom outside of the sleeve wall There is a casing bottom, the gap between the inside of the casing wall and the outside of the steel cylinder is filled with liquid, a photoelectric liquid level detector is installed on the top inside of the casing wall, and an alarm control box is installed on the top outside of the casing wall. The output end of the photoelectric liquid level detector is electrically connected to the input end of the alarm control box, and the output end of the alarm control box is electrically connected to the input end of the electromagnetic mechanism inside the pressure relief device.

As a preferred technical solution of the present invention, the number of photoelectric liquid level detectors is not less than four, and the photoelectric liquid level detectors of not less than four are equiangularly distributed along the inner side of the sleeve wall.

As a preferred technical solution of the utility model, the pressure relief needle is arranged perpendicular to the side of the safety diaphragm.

As a preferred technical solution of the present invention, a bottom liner is installed between the outer side of the bottom of the casing wall and the inner side of the bottom of the casing.

As a preferred technical solution of the utility model, air holes are provided on the side of the safety nut.

Compared with the prior art, the utility model has the beneficial effects that: the steel cylinder explosion-proof safety device is designed by adopting the water jacket method to detect the deformation information of the steel cylinder by adding a water jacket outside the fire-fighting steel cylinder, and then judge the dangerous explosion deformation to protect the safety of the steel cylinder , the structure is simple, and it can provide supporting protection for the steel cylinders currently in use, which solves the embarrassment that it is difficult to implement the regular inspection of the steel cylinders in use at home and abroad, making the regular inspection of the steel cylinders easier and more efficient, and at the same time, it can also avoid frequent inspections The disassembly and installation of the system can greatly improve the safety and controllability of the fire extinguishing system and steel cylinders.

Description of drawings

Fig. 1 is a schematic diagram of the front structure of the utility model;

Fig. 2 is the utility model steel cylinder sectional structure schematic diagram;

Fig. 3 is the utility model container valve and the safety nut sectional structural schematic diagram;

Fig. 4 is the schematic diagram of partial enlarged structure of place A of the utility model;

Fig. 5 is a schematic diagram of a partially enlarged structure at B of the present invention.

In the figure: 1 set of wall, 2 alarm control box, 3 pressure relief device, 4 sets of top seal, 5 sets of bottom, 6 sets of bottom lining, 7 photoelectric liquid level detector, 8 liquid, 9 pressure relief needle, 10 safety Diaphragm, 11 container valves, 12 safety nuts, 13 steel cylinders.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Figures 1-5, the utility model provides a technical solution: a steel cylinder explosion-proof safety device, including a steel cylinder 13, the top of the steel cylinder 13 is provided with an opening, a container valve 11 is installed at the opening, and a gas release port on the side of the container valve 11 A safety diaphragm 10 is installed, and the end of the air release port of the container valve 11 is connected to the pressure relief device 3 through a safety nut 12. The side of the safety nut 12 is provided with air holes, and the electromagnetic mechanism inside the pressure relief device 3 is connected with a pressure relief device. Put the needle 9, the pressure relief needle 9 passes through the middle of the safety nut 12 and extends to the inside of the air release port, the pressure relief needle 9 is arranged perpendicular to the side of the safety diaphragm 10, the upper end of the steel cylinder 13 is equipped with a container valve 11, the container The pressure relief device 3 is installed on the air relief port of the valve 11, and the electromagnetic mechanism inside the pressure relief device 3 can push the pressure relief needle 9 at the action end of the relief device, and the pressure relief device 3 receives a signal from the alarm control box 2 After the pressure relief command, the electromagnetic mechanism circuit inside the pressure relief device 3 is connected, and the pressure relief needle 9 at the end is pushed out through the action of the electromagnetic force to pierce the safety diaphragm 10 on the container valve 11. At this time, the danger The pressure will pass through the ruptured safety diaphragm 10, and the dangerous pressure will be released through the air hole on the safety nut 12. The pressure relief needle 9 is made of high-strength 304 stainless steel or metal of the same performance to avoid corrosion or embrittlement. The safety nut 12 is made of brass or Anti-rust metal with the same performance, the air holes on it are designed to avoid direct spraying and causing danger to surrounding objects or personnel. The side of the steel cylinder 13 is sleeved with a sleeve wall 1, and the inside of the top of the sleeve wall 1 is provided with a sleeve top seal 4. The seal 4 is ring-shaped and sleeved on the top of the steel cylinder 13, and the outer bottom of the sleeve wall 1 is sleeved with a sleeve bottom 5, and a sleeve bottom liner 6 is installed between the outer bottom of the sleeve wall 1 and the inner side of the sleeve bottom 5, and the sleeve The wall 1 and the cover bottom 5 are made of 304 stainless steel metal or hot-dip galvanized steel plate of about 3mm, which are made by rolling, welding or hot-melting processes, and are made of other materials with a certain strength, and at the same time do not chemically react with the liquid 8, and will not occur for a long time Corroded materials can also be replaced. The bottom liner 6 and the top seal 4 are made of rubber materials with stable properties and good plasticity, which can be used for sealing. They are used in conjunction with steel cylinders for mold casting, plastic wrapping or extrusion molding. The bottom liner 6 can play a role The role of the joint between the sealing sleeve wall 1 and the sleeve bottom 5 is to avoid the leakage of the liquid 8. The sleeve top seal 4 acts as the joint part of the sealing sleeve wall 1 and the steel cylinder 13, preventing external impurities from entering the liquid 8 and inhibiting the leakage of the liquid 8 at the same time. Volatilization, reducing long-term detection errors, the gap between the inner side of the sleeve wall 1 and the outer side of the steel cylinder 13 is filled with liquid 8, the liquid 8 is a low thermal expansion, low volatility liquid, and a photoelectric liquid level is installed on the inner side of the top of the sleeve wall 1 Detector 7, the number of photoelectric liquid level detectors 7 is not less than four, and not less than four photoelectric liquid level detectors 7 are equiangularly distributed along the inner side of the casing wall 1, and the photoelectric liquid level detectors 7 are installed in the casing Inside the wall 1, a number of points can be set. In order to avoid false alarms caused by instantaneous ups and downs of the liquid level due to shaking, photoelectric liquid level detectors 7 at multiple points can be set. By detecting the liquid level at each point, The liquid level data obtained are different, because the volume of the liquid 8 is constant, the sleeve wall 1 and The volume between the steel cylinders 13 has not changed, and the sum of the liquid level changes at each point is zero. According to this principle, it is obvious that the more points of the photoelectric liquid level detector 7, the lower the possibility of false alarms. The level detector 7 detects the distance of the liquid surface by infrared, so as to send the distance signal to the alarm control box 2. In a normal state, the liquid level of the liquid 8 is lower than the position of the photoelectric liquid level detector 7, and the top outside of the casing wall 1 is set There is an alarm control box 2, the output end of the photoelectric liquid level detector 7 is electrically connected to the input end of the alarm control box 2, the output end of the alarm control box 2 is electrically connected to the input end of the electromagnetic mechanism inside the pressure relief device 3, and the sleeve wall 1 The alarm control box 2 for processing detection data, sending out sound and light alarm signals and controlling the pressure relief action is installed in the prominent part on the upper part. It is equipped with data processing system, sound and light alarm system and signal output system module. The data processing system combines photoelectric liquid The signal sent by the position detector 7 is processed through calculation to determine whether to send out an audible and visual alarm or a pressure relief control signal. The audible and visual alarm system is composed of a light emitting diode and a horn. and signal output system modules adopt the existing technology, the photoelectric liquid level detector 7 adopts the components commonly used in the prior art, the photoelectric liquid level detector 7 and the data processing system connection in the alarm control box 2 adopt the existing technology, the pressure release The electromagnetic mechanism of the discharge device 3 adopts the prior art, and the connection between the signal output system module in the photoelectric liquid level detector 7 and the electromagnetic mechanism of the pressure relief device 3 adopts the prior art, and it can be started after receiving the signal, and the cylinder explosion-proof safety device A casing wall 1 is arranged outside the steel cylinder 13, and a liquid 8 with low thermal expansion and low volatility is filled between the casing wall 1 and the steel cylinder 13. The liquid level of the liquid 8 is detected by a photoelectric liquid level detector 7 and transmitted to The alarm control box 2 detects to reflect the safety state of the steel cylinder 13. When the liquid level of the liquid 8 reaches a dangerous height, the alarm control box 2 starts the pressure relief device 3 to release the dangerous pressure.

When in use: Generally speaking, when the inner and outer walls of the steel cylinder 13 are corroded somewhere, and the local stress deformation occurs due to the relationship of pressure and protrudes outward, due to the space of the low thermal expansion and low volatility liquid 8 stored outside the steel cylinder 13 Can receive steel cylinder 13 deformation and compression, the liquid level of liquid 8 can rise accordingly, and when liquid level rises to warning liquid level, photoelectric liquid level detector 7 detects, and alarm control box 2 will send alarm signal. When the liquid level of the liquid 8 continues to rise to trigger the dangerous liquid level, it indicates that the deformation of the steel cylinder 13 has reached the explosion hazard range. At this time, the alarm control box 2 sends an instruction signal to start the pressure relief device 3 installed on the container valve 11. The relief device 3 punctures the safety diaphragm 10 on the container valve 11 by controlling the pressure relief needle 9. At this time, the dangerous pressure is safely released through the air hole on the safety nut 12, thereby preventing the explosion safety accident of the steel cylinder 13.

The utility model adopts the design of the water jacket method to detect the deformation information of the steel cylinder by adding a water jacket outside the fire-fighting steel cylinder, and then judges the deformation of the dangerous explosion to protect the safety of the steel cylinder 13. It has a simple structure and can provide supporting protection for the steel cylinder 13 currently in use. It solves the embarrassment that it is difficult to implement the regular inspection of the steel cylinder 13 in use at home and abroad, making the regular inspection of the steel cylinder 13 easier and more efficient. At the same time, it can also avoid the frequent disassembly and installation of the system for inspection of the steel cylinder, which greatly improves The use safety and controllability of the fire extinguishing system and steel cylinder 13.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (5)

1. a kind of steel cylinder anti-explosion safety device, including steel cylinder（13）, it is characterised in that：The steel cylinder（13）Top be equipped with open Mouthful, opening is provided with container value（11）, the container value（11）The leakage port of side is provided with blowout disk（10）, and container Valve（11）Leakage port end pass through jam nut（12）With pressure-relieving device（3）Connection, pressure-relieving device（3）Internal Electromagnetic mechanism is connected with pressure releasing pin（9）, the pressure releasing pin（9）Through jam nut（12）Middle part and extend to The inside of leakage port, the steel cylinder（13）Side be socketed with jacket wall（1）, jacket wall（1）Inside top be equipped with set closedtop（4）, Cover closedtop（4）For ring-type and it is socketed in steel cylinder（13）Top, and jacket wall（1）Bottom outside be socketed with bottom（5）, jacket wall （1）Inner side and steel cylinder（13）Outside between gap in be filled with liquid（8）, the jacket wall（1）Inside top be equipped with Photoelectric liquid level locator（7）, and jacket wall（1）Top outer be equipped with controlling alarm box（2）, the photoelectric liquid level locator（7） Output terminal be electrically connected controlling alarm box（2）Input terminal, the controlling alarm box（2）Output terminal be electrically connected pressure releasing dress Put（3）The input terminal of internal electromagnetic mechanism.

A kind of 2. steel cylinder anti-explosion safety device according to claim 1, it is characterised in that：The photoelectric liquid level locator （7）Quantity be no less than four, and no less than the photoelectric liquid level locator of four（7）Along jacket wall（1）Inner side be angularly distributed.

A kind of 3. steel cylinder anti-explosion safety device according to claim 1, it is characterised in that：The pressure releasing pin（9）Hang down Directly in blowout disk（10）Side set.

A kind of 4. steel cylinder anti-explosion safety device according to claim 1, it is characterised in that：The jacket wall（1）Bottom outside With covering bottom（5）Inner side between add set end liner（6）.

A kind of 5. steel cylinder anti-explosion safety device according to claim 1, it is characterised in that：The jam nut（12）Side Face is equipped with stomata.