Ammonia water leak detection device

Abstract

According to the ammonia water leakage detection device, the ammonia water storage part can be formed through cooperation between the shell and the piston pushing part, the ammonia water passing hole communicated with the ammonia water storage part is formed in one end of the shell, and the liquid absorption detection part is detachably arranged at the ammonia water passing hole. One end of the piston pushing part moves towards the liquid absorption detection part so as to push the ammonia water in the ammonia water storage part to the liquid absorption detection part and supplement the ammonia water into the liquid absorption detection part; the ammonia water is injected from the inside, the volatilization speed of the ammonia water is reduced, meanwhile, the liquid absorption detection part is communicated with the ammonia water storage part, the piston pushing part can be used for supplementing the ammonia water to the liquid absorption detection part, missing detection caused by insufficient ammonia water is avoided, and the leakage detection time is prolonged.

Description

TECHNICAL FIELD

[0001] The present application relates to the polycrystalline silicon production safety field, and particularly relates to an ammonia leak detection device. BACKGROUND

[0002] In the polycrystalline silicon production process, the main materials in the main process device are dichlorodihydrogen silicon, trichlorohydrogen silicon and silicon tetrachloride. Under normal circumstances, chlorosilane reacts with water vapor in the external environment to generate hydrogen chloride gas, and a fixed toxic gas alarm is installed in the device area to detect whether chlorosilane leaks, but such chlorosilane leakage in the running system is not easy to detect and difficult to find the leakage position, which will pollute the external environment and exist certain safety hazards.

[0003] At present, the ammonia leak detection device uses a telescopic rod, the top is wrapped with cotton cloth, and ammonia is poured on the cotton cloth to detect leakage by using ammonia.

[0004] When the detection time is too long, the ammonia may be volatilized, the leakage point cannot be detected, and misjudgment is caused. CONTENT OF THE UTILITY MODEL

[0005] The embodiment of the present application provides an ammonia leak detection device to provide ammonia for the liquid suction detection part in the ammonia leak detection process, prolong the single working time of the ammonia leak detection device, and avoid the missed detection caused by ammonia volatilization.

[0006] In a first aspect, the embodiment of the present application provides an ammonia leak detection device, which comprises a shell forming a cavity, a liquid suction detection part and a piston pushing part.

[0007] One end of the shell is provided with an ammonia passing hole; the liquid suction detection part is detachably installed at the ammonia passing hole, one end of the piston pushing part is movably connected in the cavity, and the other end of the piston pushing part penetrates through the shell and extends to the outside of the shell;

[0008] One end of the piston pushing part and the shell form an ammonia storage part, and the cavity is in communication with the ammonia passing hole;

[0009] One end of the piston pushing part moves to the direction of the liquid suction detection part to push the ammonia in the ammonia storage part to the liquid suction detection part to supplement the inside of the liquid suction detection part with ammonia.

[0010] In a possible implementation, the piston pushing part comprises a piston movably arranged in the cavity and a pushing piece;

[0011] The piston and the shell form the ammonia storage part, one end of the pushing piece is connected with the piston, the other end of the pushing piece extends to the outside of the shell, and the pushing piece drives the piston to move in sections to drive the piston to extrude the ammonia storage part.

[0012] In a possible implementation, a plurality of limiting grooves are sequentially arranged at the position where the shell mounts the pushing member, so as to segmentally limit the action of the pushing member.

[0013] In a possible implementation, the other end of the shell is provided with a mounting portion, which can be connected with a telescopic rod including a plurality of support rods sequentially sleeved.

[0014] In a possible implementation, the ammonia leak detection device further comprises a shell, which is detachably mounted on the shell and covers the liquid absorption detection portion.

[0015] The shell is provided with a through hole, so that the liquid absorption detection portion can react with the gas outside the shell.

[0016] In a possible implementation, the shell is connected with the shell through a first threaded structure.

[0017] In a possible implementation, the ammonia leak detection device further comprises a smoke detection component, which is mounted on the shell and used for detecting the smoke concentration around the liquid absorption detection portion.

[0018] In some possible implementations, the smoke detection component is mounted at the through hole of the shell.

[0019] In some possible implementations, the liquid absorption detection portion is provided as a water absorption cotton ball.

[0020] In some possible implementations, a second threaded structure is arranged at the center position of the liquid absorption detection portion, and the liquid absorption detection portion is mounted on the shell through the second threaded structure.

[0021] The ammonia leak detection device provided by the embodiments of the present application can form an ammonia storage portion through the cooperation between the shell and the piston pushing portion, and an ammonia passing hole in communication with the ammonia storage portion is arranged at one end of the shell. A liquid absorption detection portion is detachably arranged at the ammonia passing hole. One end of the piston pushing component moves towards the liquid absorption detection portion, so as to push the ammonia in the ammonia storage portion to the liquid absorption detection portion, and the interior of the liquid absorption detection portion is supplemented with ammonia.

[0022] By injecting ammonia from the inside, the volatilization speed of ammonia is reduced. At the same time, the liquid absorption detection portion is in communication with the ammonia storage portion, so that the liquid absorption detection portion can be supplemented with ammonia by the piston pushing component, thereby avoiding missed detection due to insufficient ammonia and prolonging the leak detection time. BRIEF DESCRIPTION OF DRAWINGS

[0023] The drawings incorporated into the specification and constituting a part of the specification show embodiments consistent with the present application and, together with the specification, serve to explain the principles of the present application.

[0024] Figure 1A schematic diagram of the ammonia leak detection device provided in this application;

[0025] Figure 2 Another structural schematic diagram of the ammonia leak detection device provided in this application;

[0026] Figure 3 This is a left view of the ammonia leak detection device provided in this application;

[0027] Figure 4 for Figure 3 Cross-sectional view of position AA in the middle;

[0028] Figure 5 A front view of the ammonia leak detection device provided in this application;

[0029] Figure 6 for Figure 5 Cross-sectional view of the BB position in the middle;

[0030] Figure 7 An exploded view of the ammonia leak detection device provided in this application;

[0031] Figure 8 A schematic diagram of the casing provided in this application;

[0032] Figure 9 A schematic diagram showing the connection between the housing and the piston-pushing component provided in this application;

[0033] Figure 10 for Figure 9 A cross-sectional view of the BB position in the diagram.

[0034] Explanation of reference numerals in the attached figures:

[0035] 100-Ammonia leak detection device; 1-House; 2-Liquid absorption and detection unit;

[0036] 3-Piston pushing component; 31-Piston; 32-Pushing component;

[0037] 321 - Part 1; 322 - Part 2; 11 - Narrow Passage;

[0038] 12-Limiting groove; 13-Mounting part; 4-Outer shell; 41-First thread structure;

[0039] 5-Smoke detection component; 42-Grid structure; 43-Mounting hole;

[0040] 14-Third thread structure; 6-Ammonia storage section; 15-Ammonia passage hole.

[0041] The specific embodiments of the application have been shown by way of example in the above figures, and will be described in more detail hereafter. These figures and this written description are not intended to limit the scope of the inventive concept in any way, but rather to illustrate the inventive concept to one of ordinary skill in the art by reference to specific embodiments. DETAILED DESCRIPTION

[0042] Exemplary embodiments will be described in detail herein with reference to the attached drawings. The same elements are denoted by the same reference numerals throughout the drawings and the written description. The following description is not intended to represent all embodiments in accordance with the present application. Rather, they are merely examples in accordance with some aspects of the present application as detailed in the appended claims.

[0043] The application scenario of the ammonia leak detection device 100 provided by the present application can be gas leakage detection in the polysilicon production process. In the related art, the top of the telescopic rod is wrapped with cotton cloth, and the cotton cloth is used to take ammonia water. The ammonia water is poured on the cotton cloth in a pouring manner, which can cause the ammonia water to spill and waste. At the same time, in winter, the ammonia water contains water, which causes freezing, and the cotton cloth cannot absorb the ammonia water, so that the leak detection cannot be performed, and the problem of missed detection occurs.

[0044] In view of the above technical problems, the ammonia leak detection device 100 provided by the present application can form an ammonia storage part 6 through cooperation between the shell 1 and the piston pushing part 3, and an ammonia passing hole in communication with the ammonia storage part 6 is arranged at one end of the shell 1. The liquid suction detection part 2 is detachably arranged at the ammonia passing hole.

[0045] One end of the piston pushing part 3 moves towards the liquid suction detection part 2 to push the ammonia in the ammonia storage part 6 to the liquid suction detection part 2 to supplement the ammonia in the liquid suction detection part 2.

[0046] By injecting ammonia from the inside, the volatilization speed of the ammonia is reduced, and at the same time, the liquid suction detection part 2 is in communication with the ammonia storage part 6, so that the piston pushing part 3 can supplement the ammonia in the liquid suction detection part 2, avoiding missed detection due to insufficient ammonia, and prolonging the leak detection time.

[0047] The technical solutions of the present application and how the technical solutions of the present application solve the above technical problems will be described in detail below. The following specific embodiments can be combined with each other, and the same or similar concepts or processes can not be described again in some embodiments. The embodiments of the present application will be described below with reference to the drawings.

[0048] Figure 1 The structure diagram of the ammonia leak detection device 100 provided by the present application is as follows: Figure 1As shown, the ammonia leak detection device 100 includes:

[0049] The shell 1 has a cavity formed inside for accommodating ammonia and other components. In order to facilitate the replenishment of ammonia, an ammonia passing hole 15 is provided at one end of the shell 1.

[0050] This setting facilitates the addition of ammonia to the ammonia leak detection device 100 by the operator, and at the same time, the ammonia passing hole 15 can be used to replenish the ammonia to the liquid suction detection part 2, ensuring that the ammonia leak detection device 100 can work for a long time without frequent shutdown for replenishment.

[0051] The liquid suction detection part 2 is detachably mounted in the ammonia passing hole. The main function of the liquid suction detection part 2 is to absorb the ammonia pushed from the ammonia storage part, and to detect whether there is a gas leak.

[0052] By setting the liquid suction detection part 2 to be detachably mounted, it is convenient for maintenance or replacement, and at the same time, it is convenient for the replenishment of ammonia.

[0053] The piston pushing part 3 is movably connected at one end in the cavity, and the other end of the piston pushing part 3 extends to the outside of the shell 1.

[0054] One end of the piston pushing part 3 forms an ammonia storage part 6 with the shell 1, and the ammonia storage part 6 is in communication with the ammonia passing hole.

[0055] The one end of the piston pushing part 3 moves towards the liquid suction detection part 2 to compress the space of the ammonia storage part 6, and the ammonia in the ammonia storage part 6 is pushed to the liquid suction detection part 2 to replenish the ammonia to the inside of the liquid suction detection part 2.

[0056] By pushing the ammonia to the inside of the liquid suction detection part 2, the evaporation of ammonia is reduced, the leak detection time is prolonged, the use amount of hazardous ammonia is reduced, and the production cost is reduced.

[0057] At the same time, when the evaporation speed of ammonia slows down, low-concentration ammonia can be used for leak detection, reducing the detection cost.

[0058] Generally speaking, in the related art, ammonia with a concentration of 18%-25% is used for leak detection, but in the present application, low-concentration ammonia can be used for leak detection after the evaporation speed of ammonia slows down, and waste ammonia water (concentration of 8-10%) in the refrigerated water washing tower of the waste heat recovery section can be used for leak detection. Waste water utilization is achieved, and pollution is reduced.

[0059] By setting the piston pushing part 3, the flow and pressure of ammonia can be accurately controlled, ensuring that the liquid suction detection part 2 can stably receive an appropriate amount of ammonia, thereby improving the stability of the detection result.

[0060] In some embodiments, reference is made to Figure 3、 Figure 4 The piston pushing component 3 includes a piston 31 arranged in the cavity, and the piston 31 can form the ammonia storage part 6 with the shell 1.

[0061] Specifically, the piston 31 cooperates with a part of the ammonia passing hole to form the ammonia storage part 6, so that the ammonia passing hole is connected with the ammonia storage part 6. When the piston 31 extrudes the space of the ammonia storage part 6, the ammonia in the ammonia storage part 6 can pass through the ammonia passing hole 15 into the inside of the liquid absorption detection part 2.

[0062] This design enables the piston 31 to effectively control the flow path of ammonia during movement, thereby realizing the functions of ammonia suction and discharge. At the same time, the design of the piston 31 also considers the sealing and stability, ensuring that no leakage occurs during extrusion, thereby ensuring the normal operation of the system.

[0063] In some possible implementations, the piston 31 is arranged in a cylindrical structure, and the shell 1 is arranged in a cylindrical structure, and the diameter of the piston 31 is slightly larger than the inner diameter of the shell 1, so as to ensure the sealing of the ammonia storage part 6. It should be noted that the diameter of the piston 31 cannot be too large than the inner diameter of the shell 1, so as to ensure the inner movement of the piston 31 in the cavity formed by the shell 1.

[0064] Referring to Figure 5 、 Figure 6 、 Figure 9 、 Figure 10 When the ammonia enters the inside of the liquid absorption detection part 2 and diffuses from the inside to the outside, this way of supplementing ammonia can reduce the volatilization speed of ammonia and prolong the leak detection time of ammonia per unit capacity.

[0065] As shown in Figure 6 , when it is needed to push ammonia for the liquid absorption detection part 2, the second part 322 first leaves the limiting groove 12, so that the pushing component 32 is out of the limiting state.

[0066] The second part 322 slides in the long and narrow channel 11 for a certain distance. During the sliding of the second part 322 in the long and narrow channel 11, the second part 322 drives the piston 31 to move, so as to compress the space of the ammonia storage part 6.

[0067] When the ammonia storage part 6 discharges the set amount of ammonia, the second part returns to the corresponding limiting groove 12 again, so that the pushing component 32 returns to the limiting state again.

[0068] As shown in Figure 6 、 Figure 10 , the movement trajectory of the ammonia, the ammonia is extruded from the ammonia storage part 6 by the piston, enters the center position of the liquid absorption detection part 2 through the ammonia passing hole 15, and diffuses from the center of the liquid absorption detection part 2 to the periphery.

[0069] It should be noted that the figure is only an example, and in essence ammonia diffuses in all directions to the liquid absorption detection part 2.

[0070] In some possible implementations, the liquid absorption detection part 2 and the ammonia passing hole 15 are arranged at the center of the liquid absorption detection part 2. It can be understood that the liquid absorption detection part 2 and the ammonia passing hole 15 can be arranged at a position deviated from the center of the liquid absorption detection part 2 by a certain distance in a certain direction, as long as it can penetrate into the liquid absorption detection part 2.

[0071] The piston pushing component 3 further comprises a pushing piece 32, one end of the pushing piece 32 is connected with the piston 31, and the other end of the pushing piece 32 extends to the outside of the shell 1. The pushing piece 32 drives the piston 31 to move in sections, so as to drive the piston 31 to extrude the ammonia storage part 6 in sections.

[0072] By storing ammonia in the shell 1, the leakage detection time can be prolonged by injecting in sections to avoid ammonia volatilization.

[0073] Reference Figure 6 The pushing piece 32 comprises a first part 321 extending along the length direction of the shell 1 and a second part 322 extending along the width direction of the shell 1. The design of the two parts is to realize specific functions and is closely related to the overall structure of the device.

[0074] One end of the first part 321 is connected with the piston 31, so that the action of the pushing piece 32 can directly affect the movement of the piston 31. The other end of the first part 321 is connected with one end of the second part 322, thereby forming a continuous whole, ensuring the continuity and stability of the action of the pushing piece 32.

[0075] The other end of the second part 322 extends to the outside of the shell 1, which is convenient for the user to operate the pushing piece 32. This design not only improves the convenience of operation, but also enhances the accuracy of the user's control of the device.

[0076] In some possible implementations, the first part 321 and the second part 322 can be arranged as an integral structure. Such a design simplifies the manufacturing process, reduces the assembly link, thereby reducing the production cost and improving the reliability of the product.

[0077] It can be understood that the first part 321 and the second part 322 can also be arranged as a split structure. This design provides more flexibility, which can adjust the materials and sizes of each component according to different application scenarios, so as to meet specific needs. In addition, the split structure can also be conveniently maintained and replaced, because each part can be independently disassembled and installed.

[0078] In some embodiments, a plurality of limiting grooves 12 are arranged in sequence at the position of the mounting pusher 32 of the shell 1, so as to limit the action of the pusher 32 in sections.

[0079] As shown in the figure, the shell 1 is provided with a long channel 11 and a plurality of limiting grooves 12 in communication with the long channel 11. When the liquid absorption detection part 2 needs to be supplemented with ammonia water, the pusher 32 can move in the long channel 11, and after moving a set distance, it is clamped on the limiting groove 12. Figure 5

[0080] The intervals between different limiting grooves can be equally divided, or can be unevenly divided according to requirements.

[0081] Referring to Figure 7 , the other end of the shell 1 is provided with a mounting part 13 for fixing or connecting other parts. The stable connection between the shell 1 and other parts is ensured, so as to guarantee the integrity and functionality of the entire equipment.

[0082] The mounting part 13 can be connected with a telescopic rod (not shown in the figure).

[0083] The mounting part 13 can take various forms. In some embodiments, the mounting part 13 can be provided as a threaded interface, a buckle type interface or other special connecting device, which not only makes the installation process more convenient, but also improves the stability and reliability of the connection.

[0084] Those skilled in the art can choose according to requirements. As shown in Figure 7 , the mounting part 13 is provided as a threaded structure.

[0085] The telescopic rod can include a plurality of support rods arranged in sequence. These support rods are connected to each other through a special locking mechanism, for example, the locking mechanism is provided as a locking ring or a spring clip. It can be freely telescoped between different lengths.

[0086] The design of the telescopic rod enables the device to achieve a larger stroke range in a limited space, thereby increasing the applicability and flexibility of the device.

[0087] In some embodiments, referring to Figure 2 , Figure 7 , the ammonia water leak detection device 100 includes a shell 4, which is detachably mounted on the shell 1 and covers the liquid absorption detection part 2, so as to avoid direct contact between the liquid absorption detection part 2 and the detection position during the leak detection process.

[0088] In some possible implementations, the shell 4 is provided as an insulating material, so as to facilitate the detection in case of danger.

[0089] ​In some embodiments, the ammonia leak detection device 100 comprises a smoke detection component 5 installed on the shell 4. The smoke detection component 5 is used to detect the concentration of smoke around the liquid absorption detection part 2. Avoiding the situation of misjudgment of the leak point due to insufficient light during detection.

[0090] In some embodiments, the smoke detection component 5 is set as a smoke sensor. It is used to detect the concentration of smoke around it, and an alarm will be sent out when the smoke concentration exceeds the set value.

[0091] It can be known that the way of sending out the alarm can be set in many ways. It can be through the way of emitting sharp sound or using LED light, etc.

[0092] In some possible ways, referring to Figure 7 , Figure 8 , the shell 4 is provided with a through hole, so that the liquid absorption detection part 2 can be in contact with the gas outside the shell 4 to realize the detection of a specific gas.

[0093] In some embodiments, the smoke detection component 5 is installed at the through hole of the shell 4.

[0094] In some possible ways, by including the grid structure 42 provided on the shell 4 and the mounting hole 43 at the front end of the shell 4.

[0095] In some possible ways, the mounting hole 43 can be used to install the smoke detection component 5. Of course, the smoke detection component 5 can also be installed near the through hole. To adapt to different installation needs.

[0096] In some embodiments, referring to Figure 8 , the shell 4 is connected with the shell body 1 through the first threaded structure 41.

[0097] This connection method not only facilitates disassembly, but also can ensure the tight sealing between the two, preventing gas leakage. In order to further strengthen the stability of the connection.

[0098] The third threaded structure 14 is provided at the corresponding position of the shell body 1. In this way, the shell 4 can be better fixed, ensuring the reliability and durability of the whole system.

[0099] The threaded structures of the first threaded structure 41 and the third threaded structure 14 cooperate with each other to rotate and install the shell into the shell body 1.

[0100] Referring to Figure 8 , the shell 4 is set as a spherical grid structure with openings at both ends, wherein the first threaded structure 41 is provided at one end opening for installing the first threaded structure 41. The other end opening is used to install the smoke detection component 5. The grid structure 42 is used to make the gas inside and outside the shell 4 meet, so that the liquid absorption detection part 2 can detect the leaked gas.

[0101] In some embodiments, the liquid absorption detection part 2 is set as a water absorption cotton ball. The center of the liquid absorption detection part 2 is provided with a second threaded structure.

[0102] Such material has good water absorption and reaction sensitivity, which can effectively absorb and detect gas.

[0103] In some embodiments, the center of the liquid absorption detection part 2 is provided with a second threaded structure (not shown in the figure), through which the liquid absorption detection part 2 can be conveniently installed on the shell 1, while ensuring its stability and reliability.

[0104] Through the above design, the ammonia leak detection device 100 not only has high gas detection capability, but also has excellent stability and durability, and is suitable for various complex working environments.

[0105] In order to cooperate with the setting of the ammonia passing hole 15 around the shell 1, a fourth threaded structure (not shown in the figure) is provided, and the fourth threaded structure cooperates with the second threaded structure to ensure the stable installation of the liquid absorption detection part 2.

[0106] For the above structure, the use method of the ammonia leak detection device 100 in the present application is proposed as follows:

[0107] When it is necessary to supplement ammonia to the ammonia leak detection device 100, first, the outer shell 4 is removed, the liquid absorption detection part 2 is disassembled, the ammonia passing hole 15 is placed in the ammonia bottle, and the ammonia is drawn from the ammonia bottle by pulling the pusher 32.

[0108] Then the liquid absorption detection part 2 is reinstalled in place. And the outer shell 4 is installed back, which can ensure that the ammonia storage part 6 is fully filled, and prepare for the subsequent leak detection work.

[0109] When it is necessary to detect high places, the shell 1 is installed on the telescopic rod. In order to operate and detect more flexibly.

[0110] Before detecting the leakage point, the pusher 32 is pushed to inject the ammonia in the ammonia storage part 6 into the liquid absorption detection part 2, and the leak detection work is carried out. When the leakage point is found, white smoke will come out at the same time, and the smoke detection component will flash red light to alarm, so as to quickly attract the attention of the operator.

[0111] Through the double prompt mechanism of white smoke and red light alarm, the accuracy of the leakage point detection is ensured, the possibility of false alarm and missed alarm is reduced, the potential safety hazard is avoided, and the safety protection of the operator is improved.

[0112] The ammonia water can be replenished conveniently by disassembling the shell 4 and the liquid suction detection part 2, so that the ammonia water leak detection device is always in working condition. The shell 1 is arranged on the telescopic rod, so that the detection can be conducted at different heights, and the application range of the device is improved. The ammonia water leak detection device 100 is composed of the shell 1 and the piston pushing part 3 in the structure of a syringe, and the ammonia water passing hole is arranged at the front end of the shell 1, so that the ammonia water can be extracted or discharged.

[0113] The liquid suction detection part 2 is arranged at the position of the ammonia water passing hole, so as to receive and absorb the discharged ammonia water, and the leak detection is conducted. The action of the piston pushing part 3 is controlled by the limiting groove 12, so as to realize the segmented pushing of the ammonia water, reduce the ammonia water volatilization, and prolong the leak detection time.

[0114] Finally, it should be noted that: other embodiments of the utility model will be easily thought of by those skilled in the art after considering the specification and practicing the utility model disclosed herein. The utility model is intended to cover any variations, uses or adaptability of the utility model, which follow the general principles of the utility model and include the common knowledge or conventional technical means in the technical field of the utility model not disclosed by the utility model, and is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the utility model is only limited by the appended claims.

Claims

1. An ammonia leak detection device, characterized by, The utility model relates to a liquid suction detection device, which comprises: a shell, which internally forms a cavity, one end of the shell being provided with an ammonia water passing hole; a liquid suction detection part, which is detachably mounted on the ammonia water passing hole; a piston pushing part, one end of the piston pushing part being movably connected in the cavity, the other end of the piston pushing part penetrating through the shell and extending to the outside of the shell; one end of the piston pushing part forms an ammonia water storage part with the shell, the ammonia water storage part being in communication with the ammonia water passing hole; the piston pushing part moves towards the liquid suction detection part, pushing the ammonia water in the ammonia water storage part to the liquid suction detection part to supplement the ammonia water in the inside of the liquid suction detection part.

2. The ammonia leak detection device of claim 1, wherein, The piston pushing part comprises: a piston, which is movably arranged in the cavity, the piston forming the ammonia water storage part with the shell; a pushing piece, one end of the pushing piece being connected with the piston, the other end of the pushing piece extending to the outside of the shell, the pushing piece driving the piston to move in segments to drive the piston to segmentally extrude the ammonia water storage part.

3. The ammonia leak detection device of claim 2, wherein, A plurality of limiting grooves are sequentially arranged at the position of the shell where the pushing piece is mounted, to segmentally limit the action of the pushing piece.

4. The ammonia leak detection device of any one of claims 1-3, wherein, The other end of the shell is provided with a mounting part; the mounting part is connected with an extension rod, the extension rod comprising a plurality of support rods which are sequentially sleeved.

5. The ammonia leak detection device of any one of claims 1-3, wherein, Further comprising a shell, which is detachably mounted on the shell and covers the liquid suction detection part; a through hole is arranged on the shell, so that the liquid suction detection part can contact with the gas outside the shell.

6. The ammonia leak detection device of claim 5, wherein, The shell is connected with the shell through a first threaded structure.

7. The ammonia leak detection device of claim 5, wherein, Further comprising a smoke detection part, which is arranged on the shell and is used for detecting the smoke concentration around the liquid suction detection part.

8. The ammonia leak detection device of claim 7, wherein, The smoke detection part is mounted at the through hole of the shell.

9. The ammonia leak detection apparatus of any of claims 1-3, 6-8, wherein, The liquid suction detection part is arranged as a water-absorbing cotton ball.

10. The ammonia leak detection apparatus of any of claims 1-3, 6-8, wherein, A second threaded structure is arranged at the center of the liquid suction detection part, and the liquid suction detection part is mounted on the shell through the second threaded structure.

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