Intelligent SF6 and environment safety state monitoring host

Abstract

The invention belongs to the technical field of SF6 gas monitoring, and particularly relates to an intelligent SF6 and environment safety state monitoring host which comprises a monitoring host box, a display screen is connected to the lower portion of the monitoring host box, a base is fixed to the lower portion of the display screen, an environment safety monitoring system and an SF6 gas detector are arranged in the monitoring host box, and the SF6 gas detector is connected with the display screen. The environmental safety monitoring system is used for monitoring environmental safety including atmospheric environment monitoring, water environment monitoring, soil environment monitoring and noise and vibration environment monitoring, and the SF6 gas monitor is used for detecting existence and concentration of SF6 gas through a high-frequency negative corona pulse continuous discharge effect. The device solves the problems that when an existing monitoring host monitors SF6 gas, a filtering layer needs to be replaced frequently in a sampling mode, so that the cost is increased, and the monitoring precision is not accurate due to the poor filtering effect.

Description

Technical Field

[0001] The present invention belongs to the technical field of SF6 gas monitoring, and particularly relates to an intelligent SF6 and environmental safety status monitoring host. Background Art

[0002] Environmental safety status monitoring includes multiple aspects, mainly including atmospheric environment monitoring, water environment monitoring, soil environment monitoring, noise and vibration environment monitoring, radiation environment monitoring, etc. The monitoring of SF6 gas is carried out through the principle of negative corona discharge. High-frequency pulsed corona discharge generates electrons, and SF6 suppresses the discharge current. The change in current reflects the gas concentration. This technology is sensitive to trace leaks and is commonly used in on-line monitoring systems; For the SF6 gas monitoring carried out by the principle of negative corona discharge, a filter layer is required to filter out moisture and dust in the air, thereby improving the monitoring accuracy. Currently, the filter layer is replaced relatively frequently during the monitoring process, increasing the usage cost of the filter layer. The filter layer cannot be fully utilized, and air leakage into the monitoring system may also occur due to the large gap between the filter layer and the inner wall of the pipeline during use, affecting the accuracy of the monitoring data. This phenomenon has become an urgent problem to be solved by those skilled in the art. Summary of the Invention

[0003] The purpose of the present invention is to provide an intelligent SF6 and environmental safety status monitoring host to solve the problems raised in the above background art.

[0004] To solve the above technical problems, the present invention provides the following technical solution: An intelligent SF6 and environmental safety status monitoring host, including a monitoring main box. A display screen is connected below the monitoring main box, and a base is fixed below the display screen. An environmental safety monitoring system and an SF6 gas detector are arranged inside the monitoring main box. The environmental safety monitoring system is used to monitor environmental safety, including atmospheric environment monitoring, water environment monitoring, soil environment monitoring, and noise and vibration environment monitoring. The SF6 gas monitor is used to detect the presence and concentration of SF6 gas through the high-frequency negative corona pulse continuous discharge effect. A suction chamber is fixed on the left side of the monitoring main box. A suction pipe is connected below the suction chamber. The suction chamber is connected to the SF6 gas detector through a pipeline. An air pump is arranged inside the suction chamber, and gas is extracted through the air pump and injected into the SF6 gas detector. A filter layer and an installation mechanism are arranged inside the suction pipe. The filter layer is located inside the installation mechanism and is used to filter moisture and dust in the gas.

[0005] The present invention further illustrates that the installation mechanism includes a screw rod, a first limiting disc, a threaded plug, a second limiting disc, and an elastic sheet; a threaded hole is provided above the air extraction cavity, and the screw rod is threadedly connected to the threaded hole. The first limiting disc is fixedly installed at the lower end of the screw rod and is located inside the air extraction pipe. A threaded groove is provided on the inner wall of the air extraction pipe, and the threaded plug is threadedly connected to the threaded groove. A plurality of air holes are provided on the surface of the threaded plug. The second limiting disc is fixedly installed above the threaded plug. The elastic sheet is fixedly installed above the second limiting disc, and the filter layer is sleeved on the elastic sheet. The filter layer is located between the second limiting disc and the first limiting disc. The upper part of the inner wall of the air extraction pipe is conical.

[0006] The present invention further illustrates that the upper end of the filter layer is located at the conical part of the air extraction pipe and is in close contact with the lower surface of the first limiting disc.

[0007] The present invention further illustrates that a through hole is provided in the middle of the first limiting disc and the screw rod, and the upper end of the elastic sheet is located in the through hole.

[0008] The present invention further illustrates that a slider is slidably connected in the through hole of the screw rod. A connecting rod is fixed above the slider. A fixed block is fixed on one side of the upper end of the connecting rod. Two circular protrusions are provided inside the fixed block. A hole is provided at the upper end of the screw rod, and a rotating shaft is slidably connected in the hole. A rocking wheel is fixed at the upper end of the rotating shaft. An inclined disc is fixed at the bottom end of the rotating shaft, and the inclined disc is clamped between the two circular protrusions.

[0009] The present invention further illustrates that the air holes of the threaded plug are used for passing gas and liquid.

[0010] The present invention further illustrates that the lower surface of the slider is in mutual contact with the upper end of the elastic sheet.

[0011] The present invention further illustrates that a limiting block is fixed on the outer side of the rotating shaft, and the limiting block is located in the through hole of the screw rod. The upper surface of the limiting block is in mutual contact with the inner wall above the through hole.

[0012] Compared with the prior art, the beneficial effects achieved by the present invention are as follows: The present invention uses the high-frequency negative corona pulse continuous discharge effect to detect the presence and concentration of SF6 gas, and filters moisture and dust through a filter layer to improve the detection accuracy. It is more sensitive to SF6 gas monitoring, can quickly identify the concentration of SF6 gas in the air, fixes the filter layer through the first limiting disc and the second limiting disc, and the conical part of the air extraction pipe fits with the filter layer to ensure the sealing performance and improve the filtering effect. If the filter layer needs to be replaced, the threaded plug is removed, and the operation is convenient and fast. By turning the threaded plug, the threaded plug rotates and moves upward along the threaded part, thereby driving the second limiting disc to move upward and squeezing the lower end of the filter layer, causing the filter layer to deform outward, preventing air from flowing into the air extraction cavity between the filter layer and the inner wall of the air extraction pipe, and thus ensuring the detection accuracy; The filter layer is squeezed bidirectionally by the first limiting disc and the second limiting disc, and the density of the internal voids increases, so the filtering effect is better, and dust and moisture can be fully filtered out. When the air pump in the air extraction cavity cannot smoothly extract gas, it means that the filter layer is pressed too tightly. At this time, the screw or the threaded plug is rotated in the reverse direction to appropriately loosen the filter layer to ensure that the air pump can smoothly extract gas. The adjustment process has a high degree of freedom. For the height of the operator, those who are tall can adjust by turning the screw, and those who are short can adjust by turning the threaded plug, and the operation is simple. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings: Figure 1 is the overall structural schematic diagram of the present invention; Figure 2 is the structural schematic diagram of the air extraction cavity of the present invention; Figure 3 is the internal structural schematic diagram of the air extraction cavity of the present invention; Figure 4 is the structural schematic diagram of the installation mechanism of the present invention; Figure 5 is the exploded view of the internal structure of the air extraction cavity of the present invention; Figure 6 is the cooperation schematic diagram of the inclined disc and the circular boss of the fixed block of the present invention; Figure 7 is the schematic diagram of Embodiment 2 of the present invention; Figure 8 is the schematic diagram of Embodiment 3 and Embodiment 4 of the present invention; Figure 9 is the schematic diagram of Embodiment 5 and Embodiment 7 of the present invention; Figure 10It is a partial schematic diagram of the seventh embodiment of the present invention; In the figure: 1, monitoring main cabinet; 2, air extraction chamber; 3, air extraction pipe; 31, filter layer; 32, screw; 321, slider; 322, connecting rod; 323, fixed block; 33, first limiting disc; 34, threaded plug; 35, second limiting disc; 36, elastic piece; 37, rotating shaft; 371, inclined disc; 38, rocking wheel. Specific embodiments

[0014] The following further non-limiting detailed description of the technical solution of the present invention is given in conjunction with the preferred embodiments and their accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative work fall within the scope of protection of the present invention.

[0015] Please refer to Figures 1 - 10 , the present invention provides a technical solution: an intelligent SF6 and environmental safety status monitoring main machine, including a monitoring main cabinet 1, a display screen is connected below the monitoring main cabinet 1, a base is fixed below the display screen, and an environmental safety monitoring system and an SF6 gas detector are arranged inside the monitoring main cabinet 1. The environmental safety monitoring system is used to monitor environmental safety, including atmospheric environment monitoring, water environment monitoring, soil environment monitoring, and noise and vibration environment monitoring. The SF6 gas monitor is used to detect the presence and concentration of SF6 gas through the continuous discharge effect of high-frequency negative corona pulses; An air extraction chamber 2 is fixed on the left side of the monitoring main cabinet 1, an air extraction pipe 3 is connected below the air extraction chamber 2, the air extraction chamber 2 is connected to the SF6 gas detector through a pipeline, an air pump is arranged inside the air extraction chamber 2, and gas is extracted and injected into the SF6 gas detector through the air pump. A filter layer 31 and an installation mechanism are arranged inside the air extraction pipe 3, and the filter layer 31 is located inside the installation mechanism for filtering moisture and dust in the gas; The SF6 gas detector generates a corona continuous discharge effect under the action of pulsed high voltage. When there is SF6 gas in the measured gas, the negative electronegativity of the SF6 gas inhibits the corona electric field, resulting in a decrease in the corona discharge current. Then, the corona current signal varying with the concentration of the negative electronegative gas is measured, and the current change is converted into an audible and visual alarm signal through an electronic circuit. When the detected SF6 gas concentration exceeds the set threshold, an alarm signal is issued; And moisture and dust are filtered through the filter layer 31 to improve the detection accuracy. It is sensitive to SF6 gas monitoring and can quickly identify the concentration of SF6 gas in the air.

[0016] The installation mechanism includes a screw 32, a first limiting disc 33, a threaded plug 34, a second limiting disc 35, and an elastic piece 36; Above the air extraction cavity 2, there is a threaded hole, and the screw rod 32 is threadedly connected to the threaded hole. The first limiting disc 33 is fixedly installed at the lower end of the screw rod 32 and is located inside the air extraction pipe 3. The inner wall of the air extraction pipe 3 is provided with a threaded groove, and the threaded plug 34 is threadedly connected to the threaded groove. A plurality of air holes are provided on the surface of the threaded plug 34. The second limiting disc 35 is fixedly installed above the threaded plug 34. The elastic piece 36 is fixedly installed above the second limiting disc 35, and the filter layer 31 is sleeved on the elastic piece 36. The filter layer 31 is located between the second limiting disc 35 and the first limiting disc 33. The upper part of the inner wall of the air extraction pipe 3 is conical; Example 1: The filter layer 31 is sleeved on the elastic piece 36 and is limited by the second limiting disc 35. Then the filter layer 31 is inserted into the air extraction pipe 3, and the threaded plug 34 is rotated to make it threadedly connected to the threaded part inside the air extraction pipe 3 until the upper end of the filter layer 31 fits tightly with the first limiting disc 33. The filter layer 31 is fixed by the first limiting disc 33 and the second limiting disc 35, and the conical part of the air extraction pipe 3 fits tightly with the filter layer 31 to ensure the sealing performance and improve the filtering effect. If the filter layer 31 needs to be replaced, the threaded plug 34 is removed, and the operation is convenient and fast; Example 2: As Figure 7 shown, the tightness between the filter layer 31 and the inner wall of the air extraction pipe 3 is poor. At this time, the operator can turn the threaded plug 34. The threaded plug 34 rotates and moves upward along the threaded part, thereby driving the second limiting disc 35 to move upward and squeezing the lower end of the filter layer 31, causing the filter layer 31 to deform outward, preventing air from flowing into the air extraction cavity 2 between the filter layer 31 and the inner wall of the air extraction pipe 3, and thus ensuring the detection accuracy.

[0017] The upper end of the filter layer 31 is located at the conical part of the air extraction pipe 3 and fits tightly with the lower surface of the first limiting disc 33; Example 3: As Figure 8 shown, the operator rotates the screw rod 32, which rotates and moves downward through the threaded hole, thereby driving the first limiting disc 33 to move downward. The first limiting disc 33 squeezes the upper end of the filter layer 31 to deform it. The tightness between the filter layer 31 and the inner wall of the air extraction pipe 3 is higher, and the filter layer 31 is squeezed bidirectionally by the first limiting disc 33 and the second limiting disc 35, increasing the density of the internal voids, so the filtering effect is better, and dust and moisture can be fully filtered out. When the air pump in the air extraction cavity 2 cannot smoothly extract gas, it means that the filter layer 31 is pressed too tightly. At this time, the screw rod 32 or the threaded plug 34 is rotated in the reverse direction to appropriately loosen the filter layer 31 to ensure that the air pump can smoothly extract gas. The adjustment process has a high degree of freedom. For the height of the operator, those who are tall can adjust by rotating the screw rod 32, and those who are short can adjust by rotating the threaded plug 34. The operation is simple.

[0018] A through hole is provided in the middle of the first limiting disc 33 and the screw rod 32, and the upper end of the elastic piece 36 is located in the through hole; Example 4: Figure 8 As shown, when the screw 32 moves downward, it presses against the spring piece 36 through its through hole, squeezing the spring piece 36 to expand and deform outward, thereby further increasing the pressing force on the filter layer 31, which can fully increase the density of the filter layer 31 and improve the adjustment efficiency.

[0019] A slider 321 is slidably connected in the through hole of the screw rod 32. A connecting rod 322 is fixed above the slider 321. A fixing block 323 is fixed to one side of the upper end of the connecting rod 322. Two circular bosses are provided on the inner side of the fixing block 323. The upper end of the screw 32 is provided with a hole, and a rotating shaft 37 is slidably connected in the hole. A rocker wheel 38 is fixed to the upper end of the rotating shaft 37, and a tilting plate 371 is fixed to the bottom end of the rotating shaft 37. The tilting plate 371 is clamped between the two circular bosses. Example 5: Figure 9 As shown, when the screw 32 and the threaded plug 34 are rotated to the limit position, the tightness of the filter layer 31 is still not enough. At this time, the operator rotates the rocker 38, so that the rocker 38 drives the inclined plate 371 to rotate through the rotating shaft 37. During the rotation of the inclined plate 371, the two circular bosses are engaged, which drives the fixed block 323 to move. The fixed block 323 drives the slider 321 to move through the connecting rod 322. When the slider 321 moves downward, the squeezing force on the spring piece 36 is gradually increased, thereby adjusting the degree of deformation and expansion of the spring piece 36 outward to gradually strengthen the squeezing of the filter layer 31. The density of the filter layer 31 and the tightness between it and the inner wall of the exhaust pipe 3 can be fully enhanced, which can not only enhance the filtering effect, but also prevent gas leakage into the exhaust chamber 2 and cause inaccurate detection accuracy.

[0020] The air hole of the threaded plug 34 is used to pass gas and liquid; Example 6: After the filter layer 31 has been used for a period of time, there is a lot of dust and moisture inside it. At this time, liquid, that is, pure water, can be injected into the filter layer 31 through the air holes of the threaded plug 34 to clean the filter layer 31. The cleaned water then flows out through the air holes, thereby greatly improving the service life of the filter layer 31 and avoiding frequent replacements that lead to increased costs.

[0021] The lower surface of the slider 321 is in contact with the upper end of the elastic piece 36 .

[0022] A limit block is fixed on the outside of the rotating shaft 37, and the limit block is located in the through hole of the screw 32, and the upper surface of the limit block is in contact with the upper inner wall of the through hole; Example 7: Figure 9 as well as Figure 10As shown, after the filter layer 31 in the sixth embodiment is cleaned, excess moisture is generated in the filter layer 31, or there is a relatively large amount of moisture in the air in the filter layer 31 due to long-term filtration. At this time, the operator can continuously rotate the handwheel 38, which drives the inclined disk 371 to continuously rotate through the rotating shaft 37. The inclined disk 371 causes the fixed block 323 to continuously move up and down through two circular bosses, thereby driving the slider 321 to continuously move up and down. The slider 321 continuously squeezes and then releases the elastic piece 36. After repeating this several times, by continuously squeezing and then releasing the filter layer 31 through the elastic piece 36, the moisture in the filter layer 31 can be quickly squeezed out, so that the filter layer 31 can be continuously used for a long time, the service life is further improved, and the operation is simple; By adjusting the filter layer 31, the whole device can maximize the utilization of the filtering mechanism, greatly reduce the cost, and has a simple structure and low manufacturing cost. It can be widely applied to various monitoring hosts in large quantities and has a wide range of applications.

[0023] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation of the present invention.

[0024] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some of the technical features. These modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An intelligent SF6 and environmental safety status monitoring host, including a monitoring main chassis (1), characterized in that: A display screen is connected below the monitoring main chassis (1), and a base is fixed below the display screen. An environmental safety monitoring system and an SF6 gas detector are arranged inside the monitoring main chassis (1). An air extraction chamber (2) is fixed on the left side of the monitoring main chassis (1). An air extraction pipe (3) is connected below the air extraction chamber (2). The air extraction chamber (2) is connected to the SF6 gas detector through a pipeline. An air pump is arranged inside the air extraction chamber (2), and gas is extracted through the air pump and injected into the SF6 gas detector. A filter layer (31) and an installation mechanism are arranged inside the air extraction pipe (3). The filter layer (31) is located inside the installation mechanism and is used to filter moisture and dust in the gas. The installation mechanism includes a screw rod (32), a first limiting disc (33), a threaded plug (34), a second limiting disc (35), and a spring piece (36). A threaded hole is arranged above the air extraction chamber (2), and the screw rod (32) is threadedly connected to the threaded hole. The first limiting disc (33) is fixedly installed at the lower end of the screw rod (32) and is located inside the air extraction pipe (3). Threaded grooves are arranged on the inner wall of the air extraction pipe (3), and the threaded plug (34) is threadedly connected to the threaded grooves. A plurality of air holes are arranged on the surface of the threaded plug (34). The second limiting disc (35) is fixedly installed above the threaded plug (34). The spring piece (36) is fixedly installed above the second limiting disc (35), and the filter layer (31) is sleeved on the spring piece (36).

2. The intelligent SF6 and environmental safety status monitoring host according to claim 1, characterized in that: The environmental safety monitoring system is used to monitor environmental safety, including atmospheric environment monitoring, water environment monitoring, soil environment monitoring, and noise and vibration environment monitoring. The SF6 gas monitor is used to detect the presence and concentration of SF6 gas through the continuous discharge effect of high-frequency negative corona pulses. The filter layer (31) is located between the second limiting disc (35) and the first limiting disc (33), and the upper inner wall of the air extraction pipe (3) is conical.

3. An intelligent SF6 and environmental safety status monitoring host according to claim 2, characterized in that: The upper end of the filter layer (31) is located at the conical part of the air extraction pipe (3) and is in close contact with the lower surface of the first limiting disc (33).

4. An intelligent SF6 and environmental safety status monitoring host according to claim 3, characterized in that: A through hole is arranged in the middle of the first limiting disc (33) and the screw rod (32), and the upper end of the spring piece (36) is located inside the through hole.

5. The intelligent SF6 and environmental safety status monitoring host according to claim 4, characterized in that: A slider (321) is slidably connected to the through hole of the screw rod (32). A connecting rod (322) is fixed above the slider (321). A fixing block (323) is fixed on one side of the upper end of the connecting rod (322). Two circular protrusions are arranged inside the fixing block (323). A hole is arranged at the upper end of the screw rod (32), and a rotating shaft (37) is slidably connected to the hole. A hand wheel (38) is fixed at the upper end of the rotating shaft (37). An inclined disc (371) is fixed at the bottom end of the rotating shaft (37), and the inclined disc (371) is clamped between the two circular protrusions.

6. The intelligent SF6 and environmental safety status monitoring host according to claim 5, characterized in that: The air holes of the threaded plug (34) are used to pass gas and liquid.

7. An intelligent SF6 and environmental safety status monitoring host according to claim 6, characterized in that: The lower surface of the slider (321) is in mutual contact with the upper end of the spring piece (36).

8. An intelligent SF6 and environmental safety status monitoring host according to claim 7, characterized in that: A limiting block is fixed on the outer side of the rotating shaft (37), and the limiting block is located in the through hole of the screw rod (32), and the upper surface of the limiting block is in mutual contact with the inner wall above the through hole.

Images