Special gas special shunt valve box

Abstract

The utility model relates to the technical field of shunt valve box, specifically to a special shunt valve box for special gas, including shunt valve box body, protection mechanism, the protection mechanism includes detection subassembly and protection subassembly, the detection subassembly includes the fixed connection in the top surface of shunt valve box body's U -shaped plate, the shunt valve box body is equipped with one air cylinder and two air cylinders, one air cylinder and two air cylinders all penetrate the bottom surface of U -shaped plate, one air cylinder and two air cylinders all seal slidingly connected with piston plate. The utility model discloses the detection subassembly of setting, can to the real -time, accurate detection of special gas leakage in the box, can stably, timely drive the suction and discharge process of protection gas after receiving the control signal, through the protection subassembly of setting, can respond quickly when detecting gas leakage, effectively dilutes and replaces the leaked gas efficiently.

Description

Technical Field

[0001] This utility model relates to the technical field of diversion valve boxes, specifically to a special gas diversion valve box. Background Technology

[0002] In modern industrial production, the use of specialty gases is becoming increasingly widespread, such as in semiconductor manufacturing, aerospace, and medical fields. Specialty gases typically have properties such as flammability, explosiveness, toxicity, and toxicity. If a gas leak occurs during the distribution and transportation process, it will not only waste resources but may also cause serious safety accidents, posing a great threat to human life and the environment.

[0003] Existing special gas diversion valve boxes have shortcomings in gas leak detection and emergency protection. Most of them use relatively traditional detection methods, such as simple contact gas detection probes, which have low detection accuracy and are difficult to quickly and accurately detect trace gas leaks. Moreover, the emergency protection measures of existing valve boxes are often inadequate after gas leaks are detected. Some products are only equipped with simple ventilation devices, which cannot effectively suppress the spread of leaked gas. For toxic special gases, after a leak occurs, inert gas needs to be quickly introduced into the gas diversion valve box, and the air inside the gas diversion valve box also needs to be replaced. In addition, the automation level of traditional valve boxes is not high, and a lot of manual intervention is required in the entire detection and protection process. Corresponding solutions are needed. Utility Model Content

[0004] To address the aforementioned shortcomings of existing technologies, this utility model provides a special gas diversion valve box, which can effectively solve the problems of low accuracy, difficulty in quickly detecting gas leaks, and inadequate emergency protection measures after leak detection in existing technologies.

[0005] To achieve the above objectives, this utility model provides the following technical solution: This utility model provides a special gas diversion valve box, including a diversion valve box body; The protective mechanism includes a detection component and a protective component. The detection component includes an i-shaped plate fixedly connected to the top surface of the diversion valve box body. The diversion valve box body is equipped with a first air cylinder and a second air cylinder, both of which penetrate the bottom surface of the i-shaped plate. A piston plate is slidably connected inside each of the first and second air cylinders. A connecting rod is fixedly connected to the upper surface of each of the two piston plates. A connecting plate is fixedly connected to the top of each of the two connecting rods. An electric push rod is fixedly installed on the inner bottom surface of the i-shaped plate. The output end of the electric push rod is fixedly connected to the bottom surface of the connecting plate. An electrochemical gas sensor is fixedly installed on the inner wall of the diversion valve box body. A PLC controller and an alarm light are fixedly installed on the side wall of the diversion valve box body.

[0006] According to the above-mentioned special gas diversion valve box, the protective component includes a No. 1 gas storage tank and a No. 2 gas storage tank fixedly connected to the side wall of the diversion valve box body. The bottom surfaces of the No. 1 gas cylinder and the No. 2 gas cylinder are both fixedly connected to a No. 1 gas delivery pipe. The bottom of the circumferential side walls of the No. 1 gas cylinder and the No. 2 gas delivery pipe are both fixedly connected to the No. 1 gas storage tank and the No. 2 gas storage tank, respectively. One-way valves are fixedly installed in both the No. 1 gas delivery pipe and the No. 2 gas delivery pipe.

[0007] According to the above-mentioned special gas diversion valve box, the electric push rod, the alarm light, and the electrochemical gas sensor are all electrically connected to the PLC controller.

[0008] According to the above-mentioned special gas diversion valve box, the No. 1 gas cylinder and the No. 2 gas cylinder are located on both sides of the electric push rod, and the No. 1 gas storage tank is filled with nitrogen.

[0009] According to the above-mentioned special gas diversion valve box, both connecting rods are vertically arranged, and the connecting plate is horizontally arranged.

[0010] According to the above-mentioned special gas diversion valve box, the edges of the two piston plates are fixedly connected with sealing rings, and the sealing rings are made of fluororubber.

[0011] The technical solution provided by this utility model has the following advantages compared with the known prior art: This invention, through its detection components, enables real-time and accurate detection of special gas leaks within the enclosure. The electrochemical gas sensor can quickly detect trace gas leaks and promptly feed the signal back to the PLC controller. The electric push rod, connecting rod, connecting plate, piston plate, and U-shaped plate work together to stably and promptly drive the intake and exhaust process of the protective gas upon receiving the control signal, providing power and mechanical transmission support for the execution of subsequent protective measures.

[0012] This invention, through its protective components, can respond quickly when a gas leak is detected. The No. 1 gas storage tank serves as the storage unit for the protective gas. Together with the No. 1 gas supply pipe, the No. 2 gas supply pipe, and the one-way valve, it can ensure that the protective gas is output at a stable flow rate and pressure when needed. At the same time, together with the No. 2 gas storage tank, it can efficiently dilute and replace the leaked gas, effectively suppress the diffusion of the leaked gas, and reduce the probability of safety accidents. Attached Figure Description

[0013] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 3 This is a schematic diagram of the internal three-dimensional structure of the present invention; Figure 4 for Figure 2 Enlarged view of point A in the middle.

[0015] Reference numerals in the attached diagram: 1. Diversion valve box body; 2. Detection component; 21. C-shaped plate; 22. No. 1 gas cylinder; 23. No. 2 gas cylinder; 24. Piston plate; 25. Connecting rod; 26. Connecting plate; 27. Electric push rod; 28. Electrochemical gas sensor; 29. ​​PLC controller; 210. Alarm light; 3. Protective component; 31. No. 1 gas storage tank; 32. No. 2 gas storage tank; 33. No. 1 gas transmission pipe; 34. No. 2 gas transmission pipe. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0017] The present invention will be further described below with reference to the embodiments.

[0018] Example: Refer to Figures 1 to 4A special gas diversion valve box, comprising a diversion valve box body 1; The protective mechanism includes a detection component 2 and a protective component 3. The detection component 2 includes an inverted plate 21 fixedly connected to the top surface of the diversion valve box body 1. The diversion valve box body 1 contains a first air cylinder 22 and a second air cylinder 23, both of which penetrate the bottom surface of the inverted plate 21. Piston plates 24 are slidably connected to both the first and second air cylinders 22 and 23. Connecting rods 25 are fixedly connected to the upper surfaces of both piston plates 24, and connecting plates 26 are fixedly connected to the top ends of both connecting rods 25. An electric push rod 27 is fixedly installed on the inner bottom surface of the inverted plate 21. The output end of the push rod 27 is fixedly connected to the bottom surface of the connecting plate 26. An electrochemical gas sensor 28 is fixedly installed on the inner wall of the diversion valve box body 1. A PLC controller 29 and an alarm light 210 are fixedly installed on the side wall of the diversion valve box body 1. The electric push rod 27, the alarm light 210 and the electrochemical gas sensor 28 are all electrically connected to the PLC controller 29. The first gas cylinder 22 and the second gas cylinder 23 are located on both sides of the electric push rod 27. The two connecting rods 25 are both set vertically. The connecting plate 26 is set horizontally. The edges of the two piston plates 24 are fixedly connected with sealing rings. The sealing rings are made of fluororubber. The protective component 3 includes a first gas storage tank 31 and a second gas storage tank 32 fixedly connected to the side wall of the diversion valve box body 1. The bottom surfaces of the first gas cylinder 22 and the second gas cylinder 23 are both fixedly connected to a first gas supply pipe 33. The bottom of the circumferential side walls of the first gas cylinder 22 and the second gas cylinder 23 are both fixedly connected to a second gas supply pipe 34. The two second gas supply pipes 34 are fixedly connected to the first gas storage tank 31 and the second gas storage tank 32 respectively. One-way valves are fixedly installed in both the first gas supply pipe 33 and the second gas supply pipe 34. The first gas storage tank 31 is filled with nitrogen gas. Nitrogen gas is used as a protective gas to dilute leaked toxic special gases. The airflow directions of the one-way valves installed in the same first gas supply pipe 33 and the second gas supply pipe 34 are different.

[0019] The working principle of this utility model is as follows: When the special gas in the diversion valve box body 1 leaks, the leaked gas is detected by the electrochemical gas sensor 28 on the inner wall. The electrochemical gas sensor 28 transmits the detection signal to the PLC controller 29. After receiving the signal, the PLC controller 29 controls the alarm light 210 to light up and issue an alarm to remind the staff. At the same time, the PLC controller 29 controls the electric push rod 27 to start. During the control, the output end of the electric push rod 27 needs to be controlled by the PLC controller 29 to move up and down repeatedly. The output end of the electric push rod 27 pushes the connecting plate 26 to move. The connecting plate 26 drives the piston plate 24 to slide in the first gas cylinder 22 and the second gas cylinder 23 through the connecting rod 25. As the piston plate 24 slides upward, a negative pressure is created inside cylinders 1 (22) and 23 (23). Cylinders 1 (22) and 23 have different functions: cylinder 1 (22) is responsible for supplying inert gas, while cylinder 23 (23) is responsible for replacing the internal air. Taking cylinder 1 (22) as an example, its first gas delivery pipe 33 only allows outflow, while its second gas delivery pipe 34 only allows inflow. The connecting plate 26 and connecting rod 25 move the piston plate 24 upward, creating a negative pressure inside cylinder 1 (22). Under the action of the one-way valve, nitrogen from storage tank 31 enters cylinder 22 through the second gas delivery pipe 34. Then, the connecting plate 26, connecting rod 25, and piston plate 24 move downward, allowing nitrogen from cylinder 1 (22) to flow back into cylinder 22 through the second gas delivery pipe 34. 3. The gas is delivered to the diversion valve box body 1 to dilute the leaked special gas. When the second gas cylinder 23 is working, the situation is the opposite of the first gas cylinder 22. When the connecting plate 26 and the connecting rod 25 drive the piston plate 24 to move upward, the gas leaking inside the diversion valve box body 1 enters the second gas cylinder 23 through the first gas delivery pipe 33. Then, the connecting plate 26, the connecting rod 25 and the piston plate 24 move downward, and the gas drawn into the second gas cylinder 23 will be delivered to the second gas storage tank 32 through the second gas delivery pipe 34 to replace the air inside the diversion valve box body 1. The two work together to quickly and effectively reduce the concentration of dangerous gas, effectively suppress the diffusion of leaked gas, thereby reducing the probability of safety accidents and effectively improving the safety of the diversion valve box body 1.

[0020] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions will not cause the essence of the corresponding technical solutions to deviate from the protection scope of the technical solutions of the embodiments of this utility model.

Claims

1. A special gas diversion valve box, characterized in that, include: Diversion valve box body (1); The protective mechanism includes a detection component (2) and a protective component (3). The detection component (2) includes an inverted plate (21) fixedly connected to the top surface of the diversion valve box body (1). The diversion valve box body (1) is provided with a first air cylinder (22) and a second air cylinder (23). The first air cylinder (22) and the second air cylinder (23) both penetrate the bottom surface of the inverted plate (21). The first air cylinder (22) and the second air cylinder (23) are both sealed and slidably connected with piston plates (24). The two piston plates (24) is fixedly connected to the upper surface of each of the two connecting rods (25), and the top of each connecting rod (25) is fixedly connected to a connecting plate (26). An electric push rod (27) is fixedly installed on the inner bottom surface of the U-shaped plate (21). The output end of the electric push rod (27) is fixedly connected to the bottom surface of the connecting plate (26). An electrochemical gas sensor (28) is fixedly installed on the inner wall of the diversion valve box body (1). A PLC controller (29) and an alarm light (210) are fixedly installed on the side wall of the diversion valve box body (1).

2. The special gas diversion valve box according to claim 1, characterized in that, The protective component (3) includes a No. 1 gas storage tank (31) and a No. 2 gas storage tank (32) fixedly connected to the side wall of the diversion valve box body (1). The bottom surfaces of the No. 1 gas cylinder (22) and the No. 2 gas cylinder (23) are fixedly connected to a No. 1 gas supply pipe (33). The bottom of the circumferential side wall of the No. 1 gas cylinder (22) and the No. 2 gas cylinder (23) are fixedly connected to a No. 2 gas supply pipe (34). The two No. 2 gas supply pipes (34) are fixedly connected to the No. 1 gas storage tank (31) and the No. 2 gas storage tank (32) respectively. One-way valves are fixedly installed in the two No. 1 gas supply pipes (33) and the No. 2 gas supply pipes (34).

3. A special gas diversion valve box according to claim 1, characterized in that, The electric push rod (27), the alarm light (210), and the electrochemical gas sensor (28) are all electrically connected to the PLC controller (29).

4. A special gas diversion valve box according to claim 2, characterized in that, The No. 1 gas cylinder (22) and the No. 2 gas cylinder (23) are located on both sides of the electric push rod (27), and the No. 1 gas storage tank (31) is filled with nitrogen.

5. A special gas diversion valve box according to claim 1, characterized in that, Both connecting rods (25) are vertically arranged, and the connecting plate (26) is horizontally arranged.

6. A special gas diversion valve box according to claim 1, characterized in that, Both piston plates (24) are fixedly connected to the edges with sealing rings, which are made of fluororubber.

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