Chemical safety production protection device

Abstract

The utility model relates to the technical field of chemical protection, in particular to a chemical safety production protection device which comprises a first air pipe, an alarm assembly and a pressure relief assembly. The alarm assembly is arranged on one side of the interior and the exterior of the first air pipe and used for conducting alarm triggering and reminding when the air pressure in the device exceeds a threshold value; and the pressure relief assembly is arranged on one side of the first air pipe and used for releasing and balancing the internal air pressure when the internal air pressure exceeds a pressure threshold value. Compared with the prior art, the problems that in the prior art, electric control and sensors are generally adopted for detecting pressure changes, systematic failure is prone to being generated, and the maintenance cost is high are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of chemical protection, especially relates to a chemical safety production protection device. BACKGROUND

[0002] In the production process of chemical, petroleum, natural gas and other industries, the monitoring and control of gas pressure is a key factor to ensure production safety. Excessive gas pressure can cause serious damage to pipelines, containers and equipment, and even cause explosions, fires and other safety accidents, causing huge losses to production. Therefore, most chemical companies are equipped with gas pressure protection devices to monitor the gas pressure level of pipelines and equipment in real time and alarm or start the pressure relief mechanism when the gas pressure is abnormal.

[0003] In the prior art, a chemical safety protection device with publication number CN221164348U is proposed, which can monitor the gas pressure in the chemical storage tank in real time through a gas pressure sensor, transmit the monitoring data to a pressure controller, and make a judgment on the internal gas pressure. When the gas pressure is too high, the pressure controller will start the servo motor, so that the servo motor drives the relief closure plug column to pull out from the relief hole for pressure relief. However, in actual application, the detection of pressure by electronic sensor and electric control system and the triggering of alarm usually require complex electronic components, which may cause failure when the system fails. At the same time, the complex electrical control system also increases the cost and maintenance difficulty of the equipment. UTILITY MODEL CONTENT

[0004] Therefore, the purpose of the utility model is to provide a chemical safety production protection device to solve the problem of system failure and high maintenance cost caused by the use of electric control and sensor detection of pressure change in the prior art.

[0005] Based on the above purpose, the utility model provides a chemical safety production protection device, which comprises a first gas pipe, an alarm assembly and a pressure relief assembly.

[0006] The alarm assembly is arranged inside and on one side of the first gas pipe, and is used for alarm triggering and reminding when the gas pressure in the device exceeds the threshold value.

[0007] The pressure relief assembly is arranged on one side of the first gas pipe, and is used for releasing and balancing the internal gas pressure when the pressure threshold value is exceeded.

[0008] Preferably, the alarm assembly comprises a damping rod, a fixed end of the damping rod is fixed with the inner wall of one end of the first air pipe, an outer side of the damping rod is sleeved with a return spring, a free end of the damping rod is fixedly connected with a sealing pad, the sealing pad is fixedly connected with a connecting plate on a side away from the damping rod, longitudinal two sides of the connecting plate are fixedly connected with contact points, one side of the first air pipe is fixedly installed with a warning light, two electrode sheets are arranged at opposite positions of the warning light inside the first air pipe.

[0009] Preferably, the pressure relief assembly comprises a second air pipe, one end of the second air pipe is communicated with the first air pipe, an inner wall of the second air pipe is fixedly connected with a check valve shell, the check valve shell is fixedly installed with a limiting shaft inside, two movable plates are rotatably connected on the limiting shaft, a torsional spring is sleeved on the limiting shaft, two ends of the torsional spring are in contact with the two movable plates respectively, and a standby gas tank is communicated with one end of the second air pipe away from the first air pipe.

[0010] Preferably, electronic elements inside the warning light are in electrical connection between the electrode sheets, the contact points and an external power supply, and an electric circuit between the warning light and the external power supply is communicated by the contact points and the connecting plate.

[0011] Preferably, a second gas outlet is fixedly communicated with one end of the first air pipe away from the warning light, a storage cylinder is fixedly connected to the bottom of the second gas outlet, an air inlet is fixedly arranged on one side of the storage cylinder, and a first gas outlet is fixedly arranged on the bottom of the storage cylinder.

[0012] Preferably, a pressure gauge is fixedly connected to the upper side of the standby gas tank.

[0013] Preferably, the sealing pad is made of rubber material and tightly adheres to the inner wall of the first air pipe, the diameter value of the connecting plate is smaller than that of the sealing pad, the contact points are in contact with the inner wall of the first air pipe, and the electrode sheets are fixedly arranged on the inner wall of the first air pipe and used in cooperation with the contact points.

[0014] Preferably, the first air pipe and the second air pipe are both made of PVC material, the contact points are semispherical conductive metal parts, and the connecting plate is a circular conductive metal part.

[0015] The utility model discloses beneficial effects:

[0016] 1. The chemical production safety protection device, by setting the alarm component and the pressure relief component, can immediately issue an alarm when the gas pressure exceeds the safety threshold, and release the excessive gas pressure to the standby gas tank through the pressure relief device, thereby effectively avoiding equipment damage and safety accidents caused by excessive gas pressure, not only ensuring the safety of the device, but also improving the stability of the entire chemical production system.

[0017] 2. The chemical production safety protection device, the pressure relief component is automatically relieved by the mechanical action of the torsional spring and the check valve, without the need for an additional electrical control system, reducing energy consumption and improving the independence and reliability of the system, the simplified structure enables the device to operate efficiently without relying on external power supply, reducing maintenance costs and improving long-term use of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. Obviously, the drawings described below are only the present application, and those skilled in the art can obtain other drawings according to these drawings without creative labor.

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application;

[0020] Figure 2 It is a schematic diagram of the internal structure of the first pipe and the second pipe of the present application;

[0021] Figure 3 It is a schematic diagram of the check valve structure of the present application;

[0022] Figure 4 It is a schematic diagram of the present application Figure 2 It is an enlarged schematic diagram of the structure at A in the present application.

[0023] In the figure, the mark is:

[0024] 1, storage cylinder; 2, gas inlet; 3, first gas outlet; 4, second gas outlet; 5, first gas pipe; 6, second gas pipe; 7, warning light; 8, damping rod; 9, return spring; 10, gasket; 11, connecting plate; 12, contact point; 13, check valve shell; 14, movable plate; 15, torsional spring; 16, standby gas tank; 17, pressure gauge; 18, electrode sheet; 19, limiting shaft. DETAILED DESCRIPTION

[0025] In order to make the purpose, technical scheme and advantages of the present application more clear and clear, the following will further illustrate the present application in detail combined with specific embodiments.

[0026] It should be noted that, unless otherwise defined, technical terms or scientific terms used in the present application should be understood as the common meaning understood by those skilled in the art to which the present application belongs. The "first", "second" and similar words used in the present application do not represent any order, quantity or importance, but are only used to distinguish different components. "Including" or "containing" and similar words mean that the elements or objects before the word cover the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connected" or "connected" and similar words are not limited to physical or mechanical connection, but can include electrical connection, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0027] As shown in Figures 1 to 4 , a chemical safety production protection device, comprising a first gas pipe 5, an alarm assembly and a pressure relief assembly, a second gas outlet 4 is fixedly connected to the first gas pipe 5 away from the warning lamp 7, the bottom of the second gas outlet 4 is fixedly connected with a storage cylinder 1, the side of the storage cylinder 1 is fixedly provided with an air inlet 2, and the bottom of the storage cylinder 1 is fixedly provided with a first gas outlet 3.

[0028] Further, as shown in Figure 1 , 2 and Figure 4The alarm assembly is arranged inside and outside the first air pipe 5 to give an alarm and a reminder when the air pressure inside the device exceeds the threshold value. The assembly includes a damping rod 8, the fixed end of which is fixed to the inner wall of one end of the first air pipe 5, the outer side of the damping rod 8 is sleeved with a return spring 9, the free end of the damping rod 8 is fixedly connected with a sealing pad 10, the side of the sealing pad 10 away from the damping rod 8 is fixedly connected with a connecting plate 11, the longitudinal two sides of the connecting plate 11 are fixedly connected with contact points 12, one side of the first air pipe 5 is fixedly installed with a warning light 7, two electrode sheets 18 are arranged at the opposite position of the warning light 7 inside the first air pipe 5, the electronic elements inside the warning light 7 are electrically connected between the electrode sheets 18 and the contact points 12 and the external power supply, the circuit between the warning light 7 and the external power supply is communicated by the contact points 12 and the connecting plate 11, the sealing pad 10 is made of rubber and tightly adheres to the inner wall of the first air pipe 5, the diameter value of the connecting plate 11 is smaller than that of the sealing pad 10, the contact points 12 are in contact with the inner wall of the first air pipe 5, the electrode sheets 18 are fixedly arranged on the inner wall of the first air pipe 5 and are used in cooperation with the contact points 12, the first air pipe 5 and the second air pipe 6 are made of PVC, the contact points 12 are semispherical conductive metal parts, the connecting plate 11 is a circular conductive metal part, when the air pressure exceeds the threshold value, the damping rod 8 moves outward against the elastic force of the return spring 9, so that the sealing pad 10 drives the connecting plate 11, the contact points 12 are in contact with the electrode sheets 18, thereby communicating the circuit and triggering the warning light 7 to give an alarm and a reminder, without the need for additional electric control devices, the response is rapid, the sealing pad 10 is made of rubber and tightly adheres to the inner wall of the first air pipe 5, which ensures that there is no air leakage under normal working conditions and provides good elastic recovery performance to ensure sealing and reliability, the contact points 12 and the connecting plate 11 are made of conductive metal, which ensures the reliability of the circuit connection, the semispherical contact points 12 can provide more stable contact effect, reduce poor contact caused by surface oxidation or wear, and the return spring 9 ensures that the damping rod 8 can slowly return to the original position under the influence of damping when the air pressure returns to normal, thereby prolonging the alarm time of the alarm system and ensuring that the staff can observe it.

[0029] Further, as Figure 2 and Figure 3The pressure relief assembly is arranged on one side of the first air pipe 5 and is used for releasing and balancing the internal air pressure when the pressure exceeds a threshold value, and comprises a second air pipe 6, one end of the second air pipe 6 is communicated with the first air pipe 5, the inner wall of the second air pipe 6 is fixedly connected with a check valve shell 13, the inside of the check valve shell 13 is fixedly installed with a limiting shaft 19, two movable plates 14 are rotatably connected on the limiting shaft 19, a torsional spring 15 is sleeved on the limiting shaft 19, the two ends of the torsional spring 15 are respectively in contact with the two movable plates 14, a standby gas tank 16 is communicated with the end of the second air pipe 6 away from the first air pipe 5, a pressure gauge 17 is fixedly connected above the standby gas tank 16, when the internal pressure of the first air pipe 5 exceeds the threshold value, the gas pushes the movable plate 14 to open the check valve against the elastic force of the torsional spring 15, so that the excessive gas enters the standby gas tank 16, thereby preventing the internal pressure of the pipeline from being too high and improving the safety, the movable plate 14 in the check valve shell 13 is in a closed state under the action of the torsional spring 15, preventing the gas in the standby gas tank 16 from flowing back to the first air pipe 5, ensuring one-way flow of the gas and improving the stability of the system, the pressure gauge 17 is fixedly connected above the standby gas tank 16, the internal pressure of the gas tank is monitored in real time, the user can observe and adjust conveniently, and the system is ensured to operate within a safe range, so that the standby gas tank 16 can be handled or replaced in time, the entire pressure relief structure relies on the gas pressure difference and the action of the torsional spring 15 for mechanical adjustment, without the need for an additional electrical control system, thereby reducing energy consumption and improving the independence and reliability of the system.

[0030] Workflow:

[0031] When the device is in use, first, the whole device is pre-powered, at this time the sealing pad 10 and the connecting plate 11 are located at the front position inside the first air pipe 5, when the internal air pressure of the storage cylinder 1 exceeds the threshold value, the air pressure pushes the sealing pad 10 to compress the return spring 9 and the damping rod 8 to move backward, when the sealing pad 10 passes through the connection between the first air pipe 5 and the second air pipe 6, the excessive air pressure will flow from the first air pipe 5 into the second air pipe 6, and then enter the standby gas tank 16 through the check valve shell 13, at the same time, when the sealing pad 10 passes through the connection between the first air pipe 5 and the second air pipe 6, the contact point 12 is in contact with the electrode piece 18, the warning lamp 7 is connected to the circuit to start working, and the warning lamp 7 starts to flash and emits an alarm sound to prompt the staff that the air pressure exceeds the specified threshold value, at this time, the storage cylinder 1 must not be opened, and the air inlet operation must be stopped, when the excessive gas in the storage cylinder 1 enters the standby gas tank 16 through the second air pipe 6, the internal air pressure of the storage cylinder 1 returns to normal, the sealing pad 10 returns to the original position under the action of the return spring 9, and the contact point 12 will be in contact with the electrode piece 18 as long as possible under the influence of the damping rod 8, so as to keep the working time of the warning lamp 7, when the contact point 12 is out of contact with the electrode piece 18, the warning lamp 7 is turned off, which represents that the internal air pressure of the storage cylinder 1 is normal at this time, and the operation can be carried out, and the standby gas tank 16 is handled or replaced.

[0032] Those skilled in the art will understand that the above discussion of any of the embodiments is merely exemplary in nature and is not intended to imply that the scope of the present application, including the claims, is limited to these examples; the above embodiments or technical features among different embodiments can also be combined, the steps can be implemented in any order, and there are many other changes of different aspects of the present application as described above, which are not provided in details for the sake of brevity.

[0033] The present application is intended to cover all such alternatives, modifications, and variations as fall within the broad scope of the appended claims. Accordingly, any and all such alternatives, modifications and variations are intended to be encompassed by the appended claims.

Claims

1. A chemical production safety protection device, characterized in that, The utility model relates to a kind of gas cylinder, including: First gas pipe (5), alarm component and pressure relief component; Alarm component, it is arranged inside and outside side of the first gas pipe (5), for when the gas pressure inside device exceeds threshold value, alarm trigger and send reminder are carried out; Pressure relief component, it is arranged in one side of the first gas pipe (5), for when exceeding pressure threshold, the internal gas pressure is released and balanced.

2. The chemical production safety protection device according to claim 1, characterized in that, The alarm component includes damping rod (8), the fixed end of the damping rod (8) is fixed with the inner wall of one end of the first gas pipe (5), the outside of the damping rod (8) is equipped with return spring (9), the free end of the damping rod (8) is fixedly connected with sealing pad (10), the sealing pad (10) is fixedly connected with connecting plate (11) on the side away from the damping rod (8), the longitudinal two sides of the connecting plate (11) are fixedly connected with contact point (12), one side of the first gas pipe (5) is fixedly installed warning light (7), the opposite position inside the first gas pipe (5) is provided with two electrode sheets (18) of warning light (7).

3. The chemical production safety protection device according to claim 2, characterized in that, The pressure relief component includes second gas pipe (6), one end of the second gas pipe (6) is communicated with the first gas pipe (5), the inner wall of the second gas pipe (6) is fixedly connected with check valve housing (13), the inside of the check valve housing (13) is fixedly installed with limit shaft (19), two movable plates (14) are rotatably connected on the limit shaft (19), torsional spring (15) is equipped on the limit shaft (19), the two ends of the torsional spring (15) are in contact with two movable plates (14) respectively, the end away from the first gas pipe (5) of the second gas pipe (6) is communicated with spare gas tank (16).

4. The chemical production safety protection device according to claim 2, characterized in that, The electronic element inside the warning light (7) is electrically connected between the electrode sheet (18) and the contact point (12) and external power supply, and the circuit between the warning light (7) and the external power supply is communicated by the contact point (12) and the connecting plate (11).

5. The chemical production safety protection device according to claim 2, characterized in that, The end away from the warning light (7) of the first gas pipe (5) is fixedly communicated with second gas outlet (4), the bottom of the second gas outlet (4) is fixedly connected with storage cylinder (1), the side of the storage cylinder (1) is fixedly provided with air inlet (2), and the bottom of the storage cylinder (1) is fixedly provided with first gas outlet (3).

6. The chemical production safety protection device according to claim 3, characterized in that, The upper side of the spare gas tank (16) is fixedly connected with pressure gauge (17).

7. The chemical production safety protection device according to claim 2, characterized in that, The sealing pad (10) is made of rubber material, which is tightly attached to the inner wall of the first gas pipe (5), the diameter of the connecting plate (11) is smaller than the diameter of the sealing pad (10), the contact point (12) is in contact with the inner wall of the first gas pipe (5), and the electrode sheet (18) is fixedly arranged on the inner wall of the first gas pipe (5) and cooperates with the contact point (12).

8. The chemical production safety protection device according to claim 3, characterized in that, The first gas pipe (5) and the second gas pipe (6) are made of PVC material, the contact point (12) is a semispherical conductive metal part, and the connecting plate (11) is a circular conductive metal part.

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