Emergency safety valve

Abstract

The utility model discloses an emergency safety valve which comprises a valve body and a first processing mechanism, a threaded rod is in threaded connection with the interior of the top wall of the valve body, an adjusting twisting block is fixed to the top end of the threaded rod, a rotary connecting piece is fixed to the bottom end of the threaded rod, and a pressure sensor is fixed to the bottom end of the rotary connecting piece. A pressing block is fixed to the bottom end of the pressure sensor, a telescopic rod is fixed to the middle of the bottom end of the pressing block, and a spring is arranged outside the telescopic rod. Compared with an existing safety valve, the emergency safety valve is provided with the setting pressure display adjusting structure, a worker can visually master the setting pressure of the emergency safety valve and conveniently and accurately adjust the setting pressure, meanwhile, the emergency safety valve is provided with the leakage alarm mechanism, and when the emergency safety valve relieves pressure of flammable and explosive or poisonous gas, the leakage alarm mechanism can give an alarm to the worker. The device can give an alarm, so that people nearby can respond to pressure relief of gas in time, and the safety of the device can be improved.

Description

Technical Field

[0001] The utility model relates to the technical field of gas storage safety valves, in particular to an emergency safety valve. Background Art

[0002] A liquefied gas tank is a storage tank used to store liquefied gas. When there is liquefied gas inside, the pressure is very high. Any improper operation may cause an explosion. Therefore, many liquefied gas tanks are equipped with safety valves. When the internal pressure of the liquefied gas tank is too high, the safety valve can release excess gas to avoid an explosion.

[0003] The publication number authorized by China is CN213393723U, and it is named a patent for a gas tank safety valve. The device includes a valve body, a protective shell is fixedly installed on the top of the valve body by bolts, an exhaust pipe is connected to the right side of the valve body, a mounting block is fixedly installed inside the protective shell, an adjustment seat is arranged inside the protective shell, a limiting rod is arranged inside the valve body and the protective shell, a sealing member is fixedly installed on the bottom of the inner cavity of the valve body, mounting grooves are provided on both sides of the seal, and a first rubber pad is fixedly installed inside the mounting groove. The utility model protects the gas tank through the cooperation between the valve body and the protective shell, and an exhaust pipe is arranged to guide the gas discharged from the gas tank, and the working pressure of the valve body is adjusted through the cooperation between the mounting block and the adjusting seat.

[0004] Although the above device can adjust the working pressure of the valve body through the cooperation between the mounting block and the adjusting seat, there are still some problems when using the device:

[0005] 1. The pressure regulating structure of the device does not have the function of displaying the set pressure. When the user adjusts it, he cannot accurately know the set pressure of the device and can only adjust it based on experience. Therefore, its adjustment accuracy is low.

[0006] 2. The device does not have a pressure relief alarm mechanism. When the device releases pressure on flammable and explosive gases or gases that may cause poisoning, such as natural gas and liquefied gas, the device cannot promptly alarm and alert surrounding personnel, resulting in the inability of personnel to respond to the pressure relief behavior of the device in time, resulting in a high risk in its actual application.

[0007] In view of the above situation, technical innovation is carried out on the basis of the existing safety valve. Utility Model Content

[0008] The purpose of the utility model is to provide an emergency safety valve to solve the problems raised in the above background technology.

[0009] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an emergency safety valve, comprising a valve body and a processing mechanism, a threaded rod is internally threadedly connected to the top wall of the valve body, and an adjusting torsion block is fixed to the top of the threaded rod, a rotating connection piece is fixed to the bottom end of the threaded rod, and a pressure sensor is fixed to the bottom end of the rotating connection piece, a pressure block is fixed to the bottom end of the pressure sensor, and a telescopic rod is fixed to the middle of the bottom end of the pressure block, a spring is arranged on the outside of the telescopic rod, and a valve disc is fixed to the bottom end of the telescopic rod, the processing mechanism is fixed to one side outer wall of the valve body, and an electronic screen is embedded and fixed to the outer wall of the processing mechanism away from the valve body.

[0010] Furthermore, sliding blocks are fixed on both the left and right sides of the pressure block, and sliding grooves are provided on both the left and right inner walls of the valve body.

[0011] Furthermore, a protective cover is provided at the top end of the valve body, and the protective cover is snap-fittedly connected to the valve body.

[0012] Furthermore, a detection tube is provided at the air outlet end of the valve body, and the detection tube is connected to the valve body by a sealing thread.

[0013] Furthermore, a vertical pole is fixed inside the top wall of the detection tube, and a concentration detector is fixed at the bottom end of the vertical pole.

[0014] Furthermore, a second processing mechanism is fixed to the top of the vertical pole, and a second electronic screen is fixed to the outer front wall of the second processing mechanism.

[0015] Furthermore, an alarm component is provided on one side of the processing mechanism 2, and the alarm component includes an alarm and an alarm light, and an alarm light is fixed on the top of the alarm.

[0016] Compared with the prior art, the beneficial effects of the utility model are as follows: the device is provided with a set pressure display and adjustment structure, the staff can intuitively grasp the set pressure of the device, which is convenient for accurate adjustment of the set pressure, and the device is provided with a leakage alarm mechanism. When the device releases pressure on flammable, explosive or toxic gases, the device can alarm, thereby facilitating nearby personnel to respond to the gas pressure release in time, which is beneficial to improving the safety of the device.

[0017] 1. The utility model is provided with a valve body, a threaded rod, an adjusting twist block, a rotating connecting piece, a pressure sensor, a pressure block, a spring, a valve disc, a processing mechanism and an electronic screen. When the user needs to adjust the pressure relief pressure of the device, the adjusting twist block can be rotated, and the adjusting twist block can drive the threaded rod to rotate, so that the threaded rod moves upward or downward. When the threaded rod moves upward or downward, it can drive the pressure block to move up and down. The rotating connecting piece allows the threaded rod and the pressure sensor to rotate relative to each other, so as to avoid motion interference, thereby compressing the spring or stretching the spring. When the spring is compressed, its thrust on the valve disc increases, so the gas needs a stronger pressure to push open the valve disc, thereby increasing the set pressure of the device. Conversely, when the spring stretches, the thrust of the spring on the valve disc decreases. The set pressure of the device is reduced. During the adjustment process, due to the interaction of forces, the pressures at both ends of the spring are equal, so the pressure on the valve disc is approximately equal to the pressure on the pressure sensor. The weight of the pressure block is relatively light, so the impact on the pressure accuracy can be ignored. The processing mechanism is composed of a shell, an analog-to-digital sensor, a processor and other structures. It is electrically connected to the pressure sensor and can convert the electrical signal of the pressure sensor into pressure data and display it on an electronic screen. When the staff needs to adjust the set pressure of the device, the set pressure of the device can be instantly confirmed based on the digital information on the electronic screen, thereby achieving more precise adjustment. Through the above process, the staff can intuitively grasp the set pressure of the device, which is convenient for accurate adjustment of the set pressure.

[0018] 2. The utility model is provided with a detection tube, a pole, a concentration detector, a second processing mechanism, a second electronic screen and an alarm component. A wire electrically connected to the concentration detector and the second processing mechanism is provided in the pole. The staff can use different concentration detectors according to the type of gas in the working scene of the device, such as a natural gas detector, a liquefied petroleum gas detector, etc. The detection tube is sealed and connected to the gas outlet of the valve body. When the valve body is deflated, the gas will first pass through the detection tube. At this time, the concentration detector senses the increase in gas concentration in the detection tube and transmits an electrical signal to the second processing mechanism. The second processing mechanism is also composed of The device is composed of a shell, an analog-to-digital sensor, a processor and other structures. When the corresponding gas concentration in the detection tube exceeds the standard, it can convert the electrical signal output by the concentration detector into a digital signal of the concentration and display it on the electronic screen 2, and turn on the alarm component. At this time, the alarm sounds and the alarm light flashes to warn nearby personnel, so that they can make emergency responses such as ventilation and evacuation in time. Through the above structure, when the device releases pressure on flammable, explosive or toxic gases, the device can alarm, so that nearby personnel can respond to the gas pressure relief in time, which is beneficial to improving the safety of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a front view structural diagram of an emergency safety valve of the utility model;

[0020] Figure 2 It is a partial front view and cross-sectional enlarged structural diagram of a valve body, a threaded rod, an adjusting torsion block, a rotating connector, a pressure sensor, a pressure block, a telescopic rod, a spring, a valve disc, a slider and a slide groove of an emergency safety valve of the utility model;

[0021] Figure 3 The utility model is a partial front view enlarged structural schematic diagram of a detection tube, a vertical rod, a concentration detector, a second processing mechanism, a second electronic screen and an alarm component of an emergency safety valve.

[0022] In the figure: 1. valve body; 2. threaded rod; 3. adjusting twist block; 4. rotating connector; 5. pressure sensor; 6. pressure block; 7. telescopic rod; 8. spring; 9. valve disc; 10. processing mechanism one; 11. electronic screen one; 12. slider; 13. slide groove; 14. protective cover; 15. detection tube; 16. vertical pole; 17. concentration detector; 18. processing mechanism two; 19. electronic screen two; 20. alarm component; 2001, alarm; 2002, alarm light. DETAILED DESCRIPTION

[0023] The following is combined with Figure 1-3 The principles and features of the present invention are described, and the examples given are only used to explain the present invention, and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. The advantages and features of the present invention will become clearer according to the following description and claims. It should be noted that the drawings are all in a very simplified form and are not in precise proportions, and are only used to conveniently and clearly assist in explaining the purpose of the embodiments of the present invention.

[0024] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0026] like Figure 1 and Figure 2 As shown, an emergency safety valve comprises a valve body 1 and a processing mechanism 10, wherein a threaded rod 2 is internally threadedly connected to the top wall of the valve body 1, and an adjusting torsion block 3 is fixed to the top of the threaded rod 2, a rotating connector 4 is fixed to the bottom end of the threaded rod 2, and a pressure sensor 5 is fixed to the bottom end of the rotating connector 4, a pressure block 6 is fixed to the bottom end of the pressure sensor 5, and a telescopic rod 7 is fixed to the middle of the bottom end of the pressure block 6, a spring 8 is arranged outside the telescopic rod 7, and a valve disc 9 is fixed to the bottom end of the telescopic rod 7, and the processing mechanism 10 is fixed to the valve body 1 The outer wall of one side of the valve body 1 is fixed with an electronic screen 11, and the outer wall of the processing mechanism 10 away from the side of the valve body 1 is inlaid with an electronic screen 11. When the user needs to adjust the pressure relief pressure of the device, the adjusting twist block 3 can be rotated, and the adjusting twist block 3 can drive the threaded rod 2 to rotate, so that the threaded rod 2 moves upward or downward. When the threaded rod 2 moves upward or downward, it can drive the pressing block 6 to move up and down, and the rotating connecting piece 4 allows the threaded rod 2 and the pressure sensor 5 to rotate relative to each other, thereby avoiding motion interference, thereby compressing the spring 8 or making the spring 8 When the spring 8 is stretched, the thrust of the spring 8 on the valve disc 9 increases, so the gas needs a stronger pressure to push the valve disc 9 open, which increases the set pressure of the device. On the contrary, when the spring 8 is stretched, the thrust of the spring 8 on the valve disc 9 decreases, and the set pressure of the device decreases. During the adjustment process, due to the interaction of forces, the pressures at both ends of the spring 8 are equal, so the pressure on the valve disc 9 is approximately equal to the pressure on the pressure sensor 5. The weight of the pressure block 6 is relatively light, so the impact on the pressure accuracy can be ignored. The processing mechanism 10 is composed of a shell, an analog-to-digital sensor, a processor and other structures. It is electrically connected to the pressure sensor 5 and can convert the electrical signal of the pressure sensor 5 into pressure data and display it on the electronic screen 11. When the staff needs to adjust the set pressure of the device, the set pressure of the device can be immediately confirmed according to the digital information on the electronic screen 11, thereby achieving more precise adjustment. Through the above process, the staff can intuitively grasp the set pressure of the device, which is convenient for accurate adjustment of the set pressure.

[0027] like Figure 1 and Figure 3As shown, sliders 12 are fixed on the left and right sides of the pressing block 6, and slide grooves 13 are opened on the inner walls of the left and right sides of the valve body 1, a protective cover 14 is arranged on the top of the valve body 1, and the protective cover 14 is snap-fitted with the valve body 1, a detection tube 15 is arranged on the air outlet end of the valve body 1, and the detection tube 15 is sealed and threadedly connected with the valve body 1, a vertical rod 16 is fixed inside the top wall of the detection tube 15, and a concentration detector 17 is fixed at the bottom end of the vertical rod 16, a processing mechanism 18 is fixed on the top of the vertical rod 16, and an electronic screen 19 is fixed on the external front wall of the processing mechanism 18, an alarm component 20 is arranged on one side of the processing mechanism 18, and the alarm component 20 includes an alarm 2001 and an alarm light 2002, an alarm light 2002 is fixed on the top of the alarm 2001, and a wire electrically connected to the concentration detector 17 and the processing mechanism 18 is arranged in the vertical rod 16, and the staff can use different concentration detectors 17 according to the type of gas in the working scene of the device, such as natural gas. Detector, liquefied petroleum gas detector, etc., the detection tube 15 is sealed and connected to the air outlet of the valve body 1. When the valve body 1 is deflated, the gas will first pass through the detection tube 15. At this time, the concentration detector 17 senses the increase in gas concentration in the detection tube 15 and transmits the electrical signal to the processing mechanism 18. The processing mechanism 18 is also composed of a shell and an analog-to-digital sensor, a processor and other structures. When the corresponding gas concentration in the detection tube 15 exceeds the standard, it can convert the electrical signal output by the concentration detector 17 into a digital signal of concentration and display it on the electronic screen 19, and turn on the alarm component 20. At this time, the alarm 2001 makes a sound, and the alarm light 2002 emits a flashing light to warn nearby personnel, so that the personnel can make emergency responses such as ventilation and evacuation in time. Through the above structure, when the device releases pressure on flammable, explosive or toxic gases, the device can alarm, so as to facilitate nearby personnel to respond to the pressure release of the gas in time, which is beneficial to improve the safety of the device.

[0028] In summary: when using the emergency safety valve, the staff can first adjust the set pressure of the device by adjusting the twist block 3 before installing the device, so as to avoid the gas pressure affecting the accuracy of the set pressure display mechanism. The slider 12 and the slide groove 13 are slidably connected. During the adjustment process, the slider 12 and the slide groove 13 can limit the pressure block 6 to avoid the position of the pressure block 6 from being offset. The bottom end of the valve body 1 is a connecting port, and the inner wall of the connecting port can be provided with a threaded internal thread structure and a sealing gasket, so as to facilitate the connection of the device with a container or a pipeline. A pressure relief port is provided on one side of the valve body 1. After the adjustment is completed, the staff can install the bottom end of the device to the container or pipeline in a sealed manner. The spring 8 will apply a certain pressure to the valve disc 9. When the gas pressure in the container or pipeline is greater than the spring pressure, the valve disc 9 will be opened. When the spring 8 exerts pressure on the valve flap 9, the valve flap 9 will be pushed up and the gas will be discharged through the pressure relief port. In the process of the valve flap 9 being lifted up and dropped down, the telescopic rod 7 can also effectively limit the valve flap 9 to prevent the movement direction of the valve flap 9 from being deflected. When the user needs to adjust the pressure relief pressure of the device, the adjusting twist block 3 can be rotated. The adjusting twist block 3 can drive the threaded rod 2 to rotate, so that the threaded rod 2 moves upward or downward. When the threaded rod 2 moves upward or downward, it can drive the pressing block 6 to move up and down, and the rotating connecting piece 4 allows the threaded rod 2 and the pressure sensor 5 to rotate relative to each other, so as to avoid motion interference, thereby compressing the spring 8 or stretching the spring 8. When the spring 8 is compressed, its thrust on the valve flap 9 increases, so the gas needs to be more Only strong pressure can push open the valve flap 9, thereby increasing the set pressure of the device. On the contrary, when the spring 8 is stretched, the thrust of the spring 8 on the valve flap 9 is reduced, and the set pressure of the device is reduced. During the adjustment process, due to the interaction of forces, the pressures at both ends of the spring 8 are equal, so the pressure on the valve flap 9 is approximately equal to the pressure on the pressure sensor 5. The weight of the pressure block 6 is relatively light, so the influence on the pressure accuracy can be ignored. The processing mechanism 10 is composed of a shell, an analog-to-digital sensor, a processor and other structures. It is electrically connected to the pressure sensor 5 and can convert the electrical signal of the pressure sensor 5 into pressure data and display it on an electronic screen 11. When the staff needs to adjust the set pressure of the device, they can adjust the pressure according to the pressure on the electronic screen 11. The digital information can be used to instantly confirm the set pressure of the device, so as to achieve more precise adjustment. A wire electrically connected to the concentration detector 17 and the processing mechanism 18 is arranged in the vertical rod 16. The staff can use different concentration detectors 17 according to the type of gas in the working scene of the device, such as natural gas detectors, liquefied petroleum gas detectors, etc. The detection tube 15 is sealed and connected to the gas outlet of the valve body 1. When the valve body 1 is deflated, the gas will first pass through the detection tube 15. At this time, the concentration detector 17 senses the increase in the gas concentration in the detection tube 15 and transmits an electrical signal to the processing mechanism 18. The processing mechanism 18 is also composed of a shell and an analog-to-digital sensor, a processor and other structures. When the corresponding gas concentration in the detection tube 15 exceeds the standard,It can convert the electrical signal output by the concentration detector 17 into a digital signal of the concentration and display it on the electronic screen 2 19, and turn on the alarm component 20. At this time, the alarm 2001 makes a sound and the alarm light 2002 flashes to warn nearby personnel, so that they can make emergency responses such as ventilation and evacuation in time. This is the working principle of the emergency safety valve.

[0029] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. An emergency safety valve, comprising a valve body (1) and a processing mechanism (10), characterized in that: The top wall of the valve body (1) is internally threadedly connected to a threaded rod (2), and an adjusting twist block (3) is fixed to the top of the threaded rod (2), a rotating connector (4) is fixed to the bottom of the threaded rod (2), and a pressure sensor (5) is fixed to the bottom of the rotating connector (4), a pressure block (6) is fixed to the bottom of the pressure sensor (5), and a telescopic rod (7) is fixed to the middle of the bottom of the pressure block (6), a spring (8) is arranged on the outside of the telescopic rod (7), and a valve flap (9) is fixed to the bottom of the telescopic rod (7), the processing mechanism (10) is fixed to one side outer wall of the valve body (1), and an electronic screen (11) is embedded and fixed to the side outer wall of the processing mechanism (10) away from the valve body (1).

2. An emergency safety valve according to claim 1, characterized in that: Slide blocks (12) are fixed on both the left and right sides of the pressing block (6), and slide grooves (13) are provided on both the left and right inner walls of the valve body (1).

3. An emergency safety valve according to claim 1, characterized in that: A protective cover (14) is provided at the top end of the valve body (1), and the protective cover (14) is snap-fittedly connected to the valve body (1).

4. An emergency safety valve according to claim 1, characterized in that: The air outlet end of the valve body (1) is provided with a detection tube (15), and the detection tube (15) and the valve body (1) are connected by a sealing thread.

5. An emergency safety valve according to claim 4, characterized in that: A vertical rod (16) is fixed inside the top wall of the detection tube (15), and a concentration detector (17) is fixed at the bottom end of the vertical rod (16).

6. An emergency safety valve according to claim 5, characterized in that: A second processing mechanism (18) is fixed to the top of the vertical pole (16), and a second electronic screen (19) is fixed to the outer front wall of the second processing mechanism (18).

7. An emergency safety valve according to claim 6, characterized in that: An alarm component (20) is provided on one side of the second processing mechanism (18), and the alarm component (20) comprises an alarm (2001) and an alarm light (2002), and the alarm light (2002) is fixed on the top of the alarm (2001).

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