Simple alarm device for acid leakage of concentrated sulfuric acid transportation pipeline of sewage plant

Abstract

The utility model discloses a simple alarm device for acid leakage of a concentrated sulfuric acid transportation pipeline of a sewage plant, which comprises a lower protective sleeve box, an upper protective sleeve box is arranged at the top of the lower protective sleeve box, and a hinge is arranged between the back of the lower protective sleeve box and the back of the upper protective sleeve box. An aligning fastener is installed between the front faces of the lower protective sleeve box and the upper protective sleeve box, the two sides of the surfaces of the lower protective sleeve box and the upper protective sleeve box are fixedly connected with sealing seals, the surface of the lower end of the lower protective sleeve box is sleeved with a glass observation bottle in a threaded mode, and the lower end of the lower protective sleeve box is arranged to be in a screw opening shape. The device can be produced in a shaping manner, is low in cost, simple in mounting and dismounting steps and quick in mounting process, can find and dispose acid leakage in time after being mounted at the acid-leakage-prone point of the pipeline, avoids safety accidents, is applicable to weld joints or acid-leakage-prone positions of pipelines of various specifications, and has a wide application prospect. And customization can be carried out according to pipelines of different specifications.

Description

Technical Field

[0001] The utility model belongs to the technical field of concentrated sulfuric acid pipeline leakage detection alarm, in particular to a simple alarm device for acid leakage of a concentrated sulfuric acid pipeline transported by a sewage plant. Background Art

[0002] Sewage treatment plants that use Fenton and Fenton-like processes as their core need to use concentrated sulfuric acid, and the amount used is large. In sewage treatment plants, the transportation of concentrated sulfuric acid generally requires pipeline transportation. Currently, stainless steel pipelines, polytetrafluoroethylene pipelines, etc. are commonly used.

[0003] During the installation process of the transport pipeline, due to reasons such as transportation length and turns, the pipeline will involve connection. There are various connection methods, such as welding, flange connection, etc. These connections are often the places where concentrated sulfuric acid pipelines are most likely to leak acid. Concentrated sulfuric acid is highly acidic and has strong corrosive ability. Once a concentrated sulfuric acid transport pipeline leaks, it can cause serious damage to human skin when it comes into contact with the human body, and may also cause symptoms such as poisoning. In addition, the leakage of concentrated sulfuric acid, if released from other chemical substances, is likely to cause safety accidents such as fire. In sewage treatment plants, the leakage of concentrated sulfuric acid is a potential key safety hazard.

[0004] Based on the above situation, the sewage treatment plant needs to develop a simple alarm device for acid leakage in the sewage treatment plant's concentrated sulfuric acid pipeline according to actual conditions. Utility Model Content

[0005] The utility model aims to solve the problem of potential safety hazards caused by leakage at the weld of concentrated sulfuric acid transport pipeline and to provide a simple alarm device for acid leakage in sewage treatment plant concentrated sulfuric acid transport pipeline.

[0006] The technical purpose of this utility model is achieved through the following technical solutions:

[0007] A simple alarm device for acid leakage in a pipeline for transporting concentrated sulfuric acid in a sewage plant comprises a lower protective sleeve box, an upper protective sleeve box is placed on the top of the lower protective sleeve box, a hinge is installed between the backs of the lower protective sleeve box and the upper protective sleeve box, a matching fastener is installed between the fronts of the lower protective sleeve box and the upper protective sleeve box, both sides of the surfaces of the lower protective sleeve box and the upper protective sleeve box are fixedly connected with airtight seals, a glass observation bottle is threadedly sleeved on the surface of the lower end of the lower protective sleeve box, the lower end of the lower protective sleeve box is arranged in a screw-mouth shape, the upper end of the glass observation bottle is arranged in a socket shape, the socket-shaped thread sleeve is arranged on the screw-mouth-shaped surface, a wooden block indicator is placed at the bottom of the inner cavity of the glass observation bottle, and a positioning mechanism is installed on the surface of the glass observation bottle;

[0008] The positioning mechanism includes a vertical rod, a pressure block, a round block and a spring. There are two vertical rods, which respectively pass through the front and back sides of the top of the glass observation bottle. The bottom of the pressure block contacts the top of the wooden block indicator. The vertical rod, the pressure block and the round block are all made of glass.

[0009] Preferably, there are two pressing blocks, which are respectively fixedly connected to the lower end of the vertical rod, two round blocks, which are respectively fixedly connected to the upper end of the vertical rod, two springs, which are respectively movably mounted on the surface of the upper end of the vertical rod, and two ends of the spring are respectively fixedly connected to the surface of the round block and the glass observation bottle.

[0010] Preferably, the length-to-width ratio of the upper protective sleeve box and the lower protective sleeve box is 1:1 in principle, and the height thereof is set according to the size of the pipeline.

[0011] Preferably, the upper protective sleeve and the lower protective sleeve are both made of polytetrafluoroethylene with a thickness of 0.5-1 mm.

[0012] Preferably, one-way exhaust valves are installed on both sides of the lower protective cover box, a sealing ring is provided between the vertical rod and the glass observation bottle, the sealing ring is sleeved on the surface of the vertical rod, and the outer surface of the sealing ring is fixedly connected to the surface of the glass observation bottle.

[0013] Preferably, fixing mechanisms are installed on both sides of the lower protective sleeve box, and the fixing mechanisms include a connecting plate, and a nut is fixedly penetrated and embedded in the surface of the connecting plate away from one end of the lower protective sleeve box, and a screw rod is threadedly connected to the inner wall of the nut, one end of the screw rod is rotatably connected to a splint via a bearing, and the other end of the screw rod is fixedly connected to a turntable.

[0014] Preferably, a guide rod is slidably provided on the surface of one end of the connecting plate away from the lower protective sleeve box, one end of the guide rod is fixedly connected to one side of the clamping plate, and an anti-slip pad is fixedly connected to the side of the clamping plate away from the screw rod.

[0015] Compared with the prior art, the utility model has the following beneficial effects:

[0016] The utility model provides a simple alarm device for acid leakage in a pipeline for transporting concentrated sulfuric acid in a sewage treatment plant. The simple alarm device for acid leakage in a pipeline for transporting concentrated sulfuric acid in a sewage treatment plant can be finalized for production, has low cost, and has simple steps for installing and disassembling the device, and a fast installation process. After the device is installed at acid leakage-prone points in the pipeline, acid leakage can be discovered and handled in time to avoid safety accidents. The device is suitable for use at welds or acid leakage-prone points in pipelines of various specifications, and can be customized according to pipelines of different specifications.

[0017] The simple alarm device for acid leakage in the sewage plant's concentrated sulfuric acid transport pipeline is used when the sewage plant operating personnel conduct regular inspections. The color of the wood chips in the glass observation bottle can be used to determine whether the pipeline is leaking, and the leakage point can be discovered in time. If acid leakage is found in the pipeline and it is judged that the conditions for closing the acid inlet valve are not met, the glass bottle can be unscrewed and replaced with a new glass observation bottle when the glass observation bottle is about to be full. After the conditions for closing the acid inlet valve are met, the acid inlet valve can be closed for maintenance. The personnel who maintain this device and the emergency response personnel in the sewage plant should wear masks and protective gloves and chemical protective clothing. Other indicator substances such as paper scraps can also be added to the glass observation bottle instead of wood blocks. This device can also be used in the turning area of ​​the pipeline. The protective cover box is set according to the turning angle, and the shape of the glass observation bottle remains unchanged. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the structure of the utility model.

[0019] Figure 2 The figure is a rear perspective structural diagram of an embodiment of the utility model.

[0020] Figure 3 The utility model is a partially cutaway three-dimensional structural schematic diagram of an embodiment of the utility model.

[0021] Figure 4 For this utility model Figure 1 A is an enlarged schematic diagram.

[0022] In the above drawings: 1. lower protective box; 2. upper protective box; 3. hinge; 4. matching fasteners; 5. airtight seal; 6. glass observation bottle; 7. screw-shaped; 8. socket-shaped; 9. wooden block indicator; 10. one-way exhaust valve; 11. positioning mechanism; 111. vertical rod; 112. pressure block; 113. round block; 114. spring; 12. fixing mechanism; 121. connecting plate; 122. nut; 123. screw rod; 124. splint; 125. turntable; 126. guide rod; 13. anti-slip pad. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] As a preferred embodiment of the present invention, Figure 1-Figure 4As shown, the present embodiment provides a simple alarm device for acid leakage in a concentrated sulfuric acid transport pipeline in a sewage treatment plant, comprising a lower protective sleeve 1, an upper protective sleeve 2 is placed on the top of the lower protective sleeve 1, a hinge 3 is installed between the backs of the lower protective sleeve 1 and the upper protective sleeve 2, a matching fastener 4 is installed between the fronts of the lower protective sleeve 1 and the upper protective sleeve 2, both sides of the surfaces of the lower protective sleeve 1 and the upper protective sleeve 2 are fixedly connected with a sealed seal 5, a glass observation bottle 6 is threadedly sleeved on the surface of the lower end of the lower protective sleeve 1, a screw-shaped 7 is arranged at the lower end of the lower protective sleeve 1, a socket-shaped 8 is arranged at the upper end of the glass observation bottle 6, the socket-shaped 8 is threadedly sleeved on the surface of the screw-shaped 7, a wooden block indicator 9 is placed at the bottom of the inner cavity of the glass observation bottle 6, and a positioning mechanism 11 is installed on the surface of the glass observation bottle 6;

[0025] The positioning mechanism 11 includes a vertical rod 111, a pressure block 112, a round block 113 and a spring 114. There are two vertical rods 111, which respectively pass through the front and back sides of the top of the glass observation bottle 6. The bottom of the pressure block 112 contacts the top of the wooden block indicator 9. The vertical rod 111, the pressure block 112 and the round block 113 are all made of glass.

[0026] When the above embodiment is implemented, the device is installed at the acid leakage point of the concentrated sulfuric acid transportation pipeline, and the acid leakage point is placed in the middle area of ​​the lower protective sleeve 1. During installation, ensure that the airtight seal 5 of the protective sleeve is close to the steel pipe, turn the upper protective sleeve 2 over, and lock it with the matching fasteners 4. Add a wooden block indicator 9 in the observation glass bottle. The wooden block is a rectangular block, and then it is positioned and fixed by the positioning mechanism 11. Use the socket shape 8 on the upper part of the glass observation bottle 6 to align with the screw shape 7 of the lower protective sleeve 1 and tighten it. When acid leaks from this point, concentrated sulfuric acid drips into the glass observation bottle 6 and reacts with the wooden block indicator 9. Due to the dehydration reaction, the color of the wooden block turns black. When the sewage plant operators conduct regular inspections, they can determine whether the pipeline is leaking by the color of the wooden block indicator 9 in the glass observation bottle 6, and can find the leakage point in time.

[0027] In some embodiments, Figure 1 and Figure 3 As shown, there are two pressing blocks 112, which are respectively fixedly connected to the lower end of the vertical rod 111, two round blocks 113, which are respectively fixedly connected to the upper end of the vertical rod 111, two springs 114, which are respectively movably mounted on the surface of the upper end of the vertical rod 111, and both ends of the spring 114 are respectively fixedly connected to the surface of the round block 113 and the glass observation bottle 6.

[0028] In order to prevent the wooden indicator 9 from moving in the glass observation bottle 6 and reduce the situation where the concentrated sulfuric acid cannot fall onto the surface of the wooden indicator 9 when dripping, the round block 113 is pulled to drive the vertical rod 111 and the pressure block 112 to move upward, and the spring 114 is stretched, and the wooden indicator 9 is added to the glass observation bottle 6 so that it is located below the socket 8, and then the round block 113 is loosened. Under the action of the spring 114 rebounding, the pressure block 112 returns to fix the wooden indicator 9, thereby preventing the wooden indicator 9 from moving randomly in the glass observation bottle 6 during the process of installing the glass observation bottle 6 at the lower end of the lower protective cover box 1, resulting in the inability to be located below the concentrated sulfuric acid dripping after installation, resulting in the inability to detect whether the pipeline is leaking in the first time and the inability to find the leakage point in time.

[0029] In some embodiments, Figure 1 and Figure 2 The length-to-width ratio of the upper protective sleeve box 2 and the lower protective sleeve box 1 is 1:1 in principle, and the height thereof is set according to the size of the pipeline.

[0030] This embodiment ensures that the simple alarm device is stable when installed on the pipeline, and customizes the simple alarm device of corresponding size according to the size of the pipeline.

[0031] In some embodiments, Figure 1 As shown, the upper protective cover box 2 and the lower protective cover box 1 are both made of polytetrafluoroethylene with a thickness of 0.5-1 mm.

[0032] This embodiment mainly considers the corrosiveness of concentrated sulfuric acid. Polytetrafluoroethylene has very good acid and alkali resistance and can be used for a long time in the pH range of 0-14. The material will not be damaged by the pH of the medium, thereby improving the safety of the device during use.

[0033] In some embodiments, Figure 1 , Figure 2 and Figure 3 As shown, one-way exhaust valves 10 are installed on both sides of the lower protective cover box 1, and a sealing ring is arranged between the vertical rod 111 and the glass observation bottle 6. The sealing ring is sleeved on the surface of the vertical rod 111, and the outer surface of the sealing ring is fixedly connected to the surface of the glass observation bottle 6.

[0034] This embodiment mainly considers that the gas generated by the leakage of concentrated sulfuric acid and the reaction of the wood block can be discharged through the one-way exhaust valve 10, and the sealing ring can seal between the vertical rod 111 and the glass observation bottle 6 without affecting the movement of the vertical rod 111.

[0035] In some embodiments, Figure 1 , Figure 2 and Figure 4As shown, fixing mechanisms 12 are installed on both sides of the lower protective sleeve 1, and the fixing mechanisms 12 include a connecting plate 121. A nut 122 is fixedly penetrated and embedded in the surface of the connecting plate 121 away from one end of the lower protective sleeve 1. A screw rod 123 is threadedly connected to the inner wall of the nut 122. One end of the screw rod 123 is rotatably connected to a clamping plate 124 through a bearing, and the other end of the screw rod 123 is fixedly connected to a turntable 125.

[0036] This embodiment is mainly considered to ensure that the device is stably installed on the pipeline, avoid the device from falling after the mating fastener 4 is damaged, and increase the safety of the device. After the lower protective sleeve box 1 and the upper protective sleeve box 2 are installed on the pipeline, the turntable 125 is rotated to rotate and move the screw rod 123, thereby driving the clamping plate 124 to move, and the clamping plate 124 is fixed to the surface of the pipeline to reinforce the device.

[0037] In some embodiments, Figure 1 and Figure 4 As shown, a guide rod 126 is slidably provided on the surface of the connecting plate 121 away from the lower protective cover box 1, one end of the guide rod 126 is fixedly connected to one side of the clamping plate 124, and an anti-slip pad 13 is fixedly connected to the side of the clamping plate 124 away from the screw rod 123.

[0038] This embodiment mainly considers preventing the rotation of the clamp plate 124 when in use. The guide rod 126 guides and limits the clamp plate 124 when it moves, so that the clamp plate 124 will not rotate with the rotation of the screw rod 123, and under the action of the anti-slip pad 13, the friction between the clamp plate 124 and the pipe is increased, making it more firm and stable when fixed.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model rather than to limit it. Although the utility model has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the technical solution of the utility model can be modified or replaced by equivalents without departing from the purpose and scope of the technical solution of the utility model, which should be included in the scope of the claims of the utility model.

Claims

1. A simple alarm device for acid leakage in a concentrated sulfuric acid pipeline transporting a sewage treatment plant, comprising a lower protective sleeve (1), characterized in that: An upper protective sleeve (2) is placed on the top of the lower protective sleeve (1), a hinge (3) is installed between the backs of the lower protective sleeve (1) and the upper protective sleeve (2), a mating fastener (4) is installed between the fronts of the lower protective sleeve (1) and the upper protective sleeve (2), both sides of the surfaces of the lower protective sleeve (1) and the upper protective sleeve (2) are fixedly connected with a sealed seal (5), a glass observation bottle (6) is threadedly sleeved on the surface of the lower end of the lower protective sleeve (1), the lower end of the lower protective sleeve (1) is provided with a screw-shaped (7), the upper end of the glass observation bottle (6) is provided with a socket-shaped (8), the socket-shaped (8) is threadedly sleeved on the surface of the screw-shaped (7), a wooden block indicator (9) is placed at the bottom of the inner cavity of the glass observation bottle (6), and a positioning mechanism (11) is installed on the surface of the glass observation bottle (6); The positioning mechanism (11) comprises a vertical rod (111), a pressure block (112), a round block (113) and a spring (114). The number of the vertical rods (111) is two, and they respectively penetrate the front and rear sides of the top of the glass observation bottle (6). The bottom of the pressure block (112) contacts the top of the wooden indicator (9). The vertical rod (111), the pressure block (112) and the round block (113) are all made of glass.

2. The simple alarm device for acid leakage in a sewage plant transporting concentrated sulfuric acid pipeline according to claim 1 is characterized by: The number of the pressing blocks (112) is two and they are respectively fixedly connected to the lower end of the vertical rod (111); the number of the round blocks (113) is two and they are respectively fixedly connected to the upper end of the vertical rod (111); the number of the springs (114) is two and they are respectively movably sleeved on the surface of the upper end of the vertical rod (111); the two ends of the spring (114) are respectively fixedly connected to the surface of the round block (113) and the surface of the glass observation bottle (6).

3. The simple alarm device for acid leakage in a sewage plant transporting concentrated sulfuric acid pipeline according to claim 1 is characterized by: The length-to-width ratio of the upper protective sleeve (2) and the lower protective sleeve (1) is in principle 1:1, and their height is set according to the size of the pipeline.

4. The simple alarm device for acid leakage in a sewage plant transporting concentrated sulfuric acid pipeline according to claim 1 is characterized by: The upper protective sleeve (2) and the lower protective sleeve (1) are both made of polytetrafluoroethylene and have a thickness of 0.5-1 mm.

5. The simple alarm device for acid leakage in a sewage plant transporting concentrated sulfuric acid pipeline according to claim 1 is characterized by: One-way exhaust valves (10) are installed and connected to each other on both sides of the lower protective sleeve (1), and a sealing ring is provided between the vertical rod (111) and the glass observation bottle (6). The sealing ring is sleeved on the surface of the vertical rod (111), and the outer surface of the sealing ring is fixedly connected to the surface of the glass observation bottle (6).

6. The simple alarm device for acid leakage in a sewage plant transporting concentrated sulfuric acid pipeline according to claim 1 is characterized by: A fixing mechanism (12) is installed on both sides of the lower protective sleeve (1), and the fixing mechanism (12) comprises a connecting plate (121). A nut (122) is fixedly penetrated and inlaid on a surface of the connecting plate (121) away from one end of the lower protective sleeve (1). A screw rod (123) is threadedly connected to the inner wall of the nut (122). One end of the screw rod (123) is rotatably connected to a clamping plate (124) via a bearing, and the other end of the screw rod (123) is fixedly connected to a rotating disk (125).

7. A simple alarm device for acid leakage in a sewage plant's concentrated sulfuric acid transport pipeline according to claim 6, characterized in that: A guide rod (126) is slidably provided on the surface of one end of the connecting plate (121) away from the lower protective sleeve (1), one end of the guide rod (126) is fixedly connected to one side of the clamping plate (124), and a non-slip pad (13) is fixedly connected to one side of the clamping plate (124) away from the screw rod (123).

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