Ammonia gas leakage alarm device for ammonia decomposition system

Abstract

The utility model discloses an ammonia gas leakage alarm device for ammonia decomposition system, which comprises a control box body, a second sleeve shell and a gas storage tank, the gas storage tank is arranged in the control box body, one end in the control box body is provided with a sucking pump, the output end of the sucking pump is provided with a sucking hose, and the other end of the control box body is provided with a second sleeve shell. And the air exhaust hose penetrates through the control box body, a second sleeve shell is mounted on the outer side of the air exhaust hose, second mounting plates are mounted on the two sides of the second sleeve shell correspondingly, and second screw holes are evenly formed in the second mounting plates correspondingly. The first sleeve shell, the ammonia gas sensor, the second sleeve shell, the buzzer and the single-chip microcomputer are installed, in the using process, the first sleeve shell and the second sleeve shell are installed on the outer side of the pipeline connecting position, when ammonia gas leaks, the ammonia gas sensor transmits monitored information to the single-chip microcomputer, the single-chip microcomputer controls the buzzer to make a sound for prompting, and therefore the safety of a worker is guaranteed. Therefore, the alarm effect can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of ammonia decomposition equipment, in particular to an ammonia leakage alarm device for an ammonia decomposition system. Background Art

[0002] In large-scale industrial production, protective gas is often required for process steps that require high-temperature heating. The ammonia decomposition system can prepare ammonia for use as a protective gas. During the decomposition process, the ammonia leak alarm device can monitor and alarm for ammonia leaks at the pipeline connections.

[0003] For example, the invention patent: "An ammonia leakage alarm device for an ammonia decomposition system", with the announcement number: "CN109946425A", connects the conduits in parallel and connects the gas collecting ring to the shell separately, so that the distance traveled by ammonia from the gas collecting ring to the inside of the shell is the shortest. The ammonia detector can detect ammonia leakage more quickly, thereby causing the alarm controller to alarm in time. However, during the implementation of this patent, the leaked ammonia directly enters the inside of the shell, and the device cannot temporarily collect the ammonia, causing the ammonia to continue to leak to the outside of the shell, which easily causes ammonia waste and causes external air pollution. Therefore, the research and development of new ammonia leakage alarm devices for ammonia decomposition systems has received attention from more and more researchers. Utility Model Content

[0004] The purpose of the utility model is to provide an ammonia leakage alarm device for an ammonia decomposition system to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: an ammonia leakage alarm device for an ammonia decomposition system, comprising a control box body, a second shell and a gas tank, the gas tank being installed inside the control box body, and an air pump being installed at one end inside the control box body, an air extraction hose being installed at the output end of the air extraction pump, the air extraction hose passing through the control box body, and a second shell being installed on the outside of the air extraction hose, second mounting plates being installed on both sides of the second shell, and second screw holes being evenly provided on the inside of the second mounting plates, an ammonia sensor being installed on the inner side of the second shell, and the first shell being installed at the end of the second shell away from the air extraction hose, a single-chip microcomputer being installed at the end of the control box body away from the air extraction pump, and a buzzer being installed on the top of the control box body, the output end of the ammonia sensor being electrically connected to the input end of the single-chip microcomputer through a wire, and the output end of the single-chip microcomputer being electrically connected to the input ends of the air extraction pump and the buzzer respectively through a wire.

[0006] Preferably, a one-way air intake valve is installed at the bottom of the air storage tank near one end of the air pump, an air guide pipe is installed at the input end of the one-way air intake valve, and the end of the air guide pipe away from the one-way air intake valve is connected to the output end of the air pump, and the output end of the one-way air intake valve is installed with a connecting pipe extending to the inside of the air storage tank.

[0007] Preferably, an exhaust pipe is installed on the top of the gas storage tank.

[0008] Preferably, the exhaust pipe passes through the control box body and extends to the outside of the control box body, and a sealing pipe cover is installed on the top of the exhaust pipe.

[0009] Preferably, first mounting plates are installed on both sides of the first housing, and first screw holes are evenly arranged inside the first mounting plates, and fixing bolts are threadedly installed inside the first screw holes.

[0010] Preferably, a door is installed on one side of the control box body, and a handle is installed on the outside of the door.

[0011] Preferably, an anti-rust layer is provided on the outer side of the fixing bolt.

[0012] Compared with the prior art, the beneficial effects of the present invention are:

[0013] 1. The ammonia leakage alarm device for an ammonia decomposition system is equipped with a first housing, an ammonia sensor, a second housing, a buzzer, and a single-chip computer. During use, the first housing and the second housing are installed on the outside of the pipe connection position. When ammonia leaks, the ammonia sensor transmits the monitored information to the single-chip computer, and the single-chip computer controls the buzzer to sound a prompt, thereby achieving an alarm effect;

[0014] 2. The ammonia leak alarm device for an ammonia decomposition system is equipped with a first mounting plate, fixing bolts, and a second mounting plate. During installation, the first shell and the second shell are fitted together, and the fixing bolts are screwed into the first screw hole and the second screw hole at the same time, so that the first shell and the second shell can be firmly installed on the outside of the pipeline;

[0015] 3. The ammonia leakage alarm device for the ammonia decomposition system is installed with an exhaust pump and a gas storage tank for use together. When ammonia leaks, the single-chip microcomputer simultaneously controls the exhaust pump to start, and the ammonia inside the first shell and the second shell can be sucked into the gas storage tank for collection, which can not only reduce the waste of ammonia, but also avoid the external air pollution caused by ammonia leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of a main cross-sectional view of the present utility model;

[0017] Figure 2 This is a schematic diagram of the main view of the utility model;

[0018] Figure 3 This is a top-down cross-sectional diagram of the first and second shells of the present invention;

[0019] Figure 4 For this utility model Figure 3 A magnified view of the structure in Figure 2.

[0020] In the figure: 1. Control box body; 2. Air duct; 3. Air pump; 4. First shell; 5. Ammonia sensor; 6. Air extraction hose; 7. Second shell; 8. Gas tank; 9. Exhaust pipe; 10. Sealing pipe cover; 11. Buzzer; 12. One-way air inlet valve; 13. Single-chip microcomputer; 14. Box door; 15. First mounting plate; 16. First screw hole; 17. Second screw hole; 18. Fixing bolt; 19. Second mounting plate; 20. Connecting pipe. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0022] See also Figure 1-4 , the utility model provides an embodiment: an ammonia leakage alarm device for an ammonia decomposition system, comprising a control box body 1, a second shell 7 and a gas tank 8, the gas tank 8 is installed inside the control box body 1, and an air pump 3 is installed at one end of the control box body 1, the model of the air pump 3 here can be VCH1028, an air extraction hose 6 is installed at the output end of the air extraction pump 3, the air extraction hose 6 passes through the control box body 1, and a second shell 7 is installed on the outside of the air extraction hose 6, second mounting plates 19 are installed on both sides of the second shell 7, and second screw holes 17 are evenly arranged on the inside of the second mounting plate 19, an ammonia sensor 5 is installed on the inside of the second shell 7, the model of the ammonia sensor 5 here can be MIDAS-K-NH3, the first shell 4 is installed at the end of the second shell 7 away from the exhaust hose 6, and a single-chip microcomputer 13 is installed at the end of the control box body 1 away from the exhaust pump 3. The model of the single-chip microcomputer 13 here can be HT66F018, and a buzzer 11 is installed on the top of the control box body 1. The model of the buzzer 11 here can be JHR-3500. The output end of the ammonia sensor 5 is electrically connected to the input end of the single-chip microcomputer 13 through a wire, and the output end of the single-chip microcomputer 13 is electrically connected to the input end of the exhaust pump 3 and the buzzer 11 through a wire respectively. A box door 14 is installed on one side of the control box body 1, and a handle is installed on the outside of the box door 14 to facilitate maintenance of the inside of the control box body 1.

[0023] like Figure 1-2 As shown, a one-way air intake valve 12 is installed at the bottom of the gas storage tank 8 near one end of the air extraction pump 3, an air guide pipe 2 is installed at the input end of the one-way air intake valve 12, and the end of the air guide pipe 2 away from the one-way air intake valve 12 is connected to the output end of the air extraction pump 3, and a connecting pipe 20 extending to the inside of the gas storage tank 8 is installed at the output end of the one-way air intake valve 12. The one-way air intake valve 12 can prevent the ammonia inside the gas storage tank 8 from flowing back into the inside of the air extraction hose 6.

[0024] like Figure 1-2 As shown, an exhaust pipe 9 is installed on the top of the gas tank 8. The exhaust pipe 9 passes through the control box body 1 and extends to the outside of the control box body 1. A sealing pipe cover 10 is installed on the top of the exhaust pipe 9. By opening the sealing pipe cover 10, the ammonia stored in the gas tank 8 can be extracted through the exhaust pipe 9.

[0025] like Figure 1-4 As shown, first mounting plates 15 are installed on both sides of the first housing 4, and first screw holes 16 are evenly provided inside the first mounting plates 15. Fixing bolts 18 are threadedly installed inside the first screw holes 16, and an anti-rust layer is provided on the outside of the fixing bolts 18. During installation, the first housing 4 and the second housing 7 are fitted together, and the fixing bolts 18 are screwed into the first screw holes 16 and the second screw holes 17 at the same time, so that the first housing 4 and the second housing 7 can be firmly installed on the outside of the pipe.

[0026] Working principle:

[0027] When in use, the device is powered on, and the staff can put the first shell 4 and the second shell 7 on the outside of the connection of the ammonia decomposition equipment pipeline, and fit the first shell 4 and the second shell 7 tightly together so that the first mounting plate 15 fits the second mounting plate 19;

[0028] Then the staff can screw the fixing bolts 18 into the first screw holes 16 and the second screw holes 17 at the same time, and fix the first mounting plate 15 and the second mounting plate 19 by the fixing bolts 18, so that the first shell 4 and the second shell 7 can be firmly installed on the outside of the pipeline;

[0029] During use, when ammonia leaks at the pipe connection, the ammonia sensor 5 transmits the monitored information to the single-chip microcomputer 13, and the single-chip microcomputer 13 controls the buzzer 11 to emit a sound to prompt, which can have an alarm effect;

[0030] At the same time, the single-chip microcomputer 13 controls the start-up of the vacuum pump 3, which can draw the ammonia gas inside the first shell 4 and the second shell 7 into the gas storage tank 8 for collection, which can not only reduce the waste of ammonia gas, but also avoid the leakage of ammonia gas causing external air pollution. After use, the sealed tube cover 10 is opened and the ammonia gas stored in the gas storage tank 8 can be extracted through the exhaust pipe 9.

[0031] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the present invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be encompassed within the present invention. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. An ammonia leakage alarm device for an ammonia decomposition system, comprising a control box body (1), a second shell (7) and a gas storage tank (8), characterized in that: The control box body (1) is provided with a gas storage tank (8), and an air pump (3) is provided at one end of the control box body (1). An air pump hose (6) is provided at the output end of the air pump (3). The air pump hose (6) passes through the control box body (1), and a second housing (7) is provided on the outside of the air pump hose (6). Second mounting plates (19) are provided on both sides of the second housing (7), and second screw holes (17) are evenly provided on the inside of the second mounting plates (19). The inner side of the second housing (7) is provided with a second mounting plate (19). An ammonia sensor (5) is installed, and a first housing (4) is installed at one end of the second housing (7) away from the air extraction hose (6); a single-chip microcomputer (13) is installed at one end of the control box body (1) away from the air extraction pump (3), and a buzzer (11) is installed on the top of the control box body (1); the output end of the ammonia sensor (5) is electrically connected to the input end of the single-chip microcomputer (13) through a wire, and the output end of the single-chip microcomputer (13) is electrically connected to the input end of the air extraction pump (3) and the buzzer (11) through a wire.

2. The ammonia leakage alarm device for an ammonia decomposition system according to claim 1, characterized in that: A one-way air inlet valve (12) is installed at the bottom of the air storage tank (8) near one end of the air extraction pump (3); an air guide pipe (2) is installed at the input end of the one-way air inlet valve (12); and an end of the air guide pipe (2) away from the one-way air inlet valve (12) is connected to the output end of the air extraction pump (3); and a connecting pipe (20) extending to the interior of the air storage tank (8) is installed at the output end of the one-way air inlet valve (12).

3. The ammonia leakage alarm device for an ammonia decomposition system according to claim 1, characterized in that: An exhaust pipe (9) is installed on the top of the gas storage tank (8).

4. The ammonia leakage alarm device for an ammonia decomposition system according to claim 3, characterized in that: The exhaust pipe (9) passes through the control box body (1) and extends to the outside of the control box body (1), and a sealing pipe cover (10) is installed on the top of the exhaust pipe (9).

5. The ammonia leakage alarm device for an ammonia decomposition system according to claim 1, characterized in that: First mounting plates (15) are installed on both sides of the first housing (4), and first screw holes (16) are evenly arranged inside the first mounting plates (15), and fixing bolts (18) are threadedly installed inside the first screw holes (16).

6. The ammonia leakage alarm device for an ammonia decomposition system according to claim 1, characterized in that: A box door (14) is installed on one side of the control box body (1), and a handle is installed on the outer side of the box door (14).

7. The ammonia leakage alarm device for an ammonia decomposition system according to claim 5, characterized in that: The outer side of the fixing bolt (18) is provided with a rust-proof layer.

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