SF6 and N2 mixed gas detection equipment

Abstract

The invention discloses SF6 and N2 mixed gas detection equipment which comprises a portable box, a box body is arranged in the portable box, an effective tester is installed in the box body, an instrument machine is arranged in the effective tester, a control display screen is installed on the surface of the instrument machine, a sound cylinder is installed on one side of the control display screen, and an in-out connector is installed on the other side of the control display screen. A coulombmeter is installed on the side wall of the instrument. After the box body is opened, the built-in calibrator can swing and be in an inclined state through matching of the hinge holes in the two sides, the bottom of the calibrator is supported on the inner wall of the box body, the rear portion of the calibrator is supported by the supporting rod, and heat of the calibrator is directly discharged out of the portable box when the calibrator is in the inclined state; and moreover, the temperature control cover and the carrying plate are provided with grooves in a hollowed-out state, so that the temperature of the guide pipe is continuously kept, gas can be kept stable when entering the analysis and verification box, and the interference on the precision of the instrument due to the fact that the operation temperature of the instrument intervenes the temperature rise of the pipeline is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of gas detection equipment, in particular to a SF6 and N2 mixed gas detection equipment. Background Art

[0002] SF6 and N2 mixed gas is a commonly used insulating medium used in power equipment and electrical equipment; the density of the mixed gas is determined by the ratio of SF6 to N2. Generally speaking, the density of the mixed gas increases with the increase of SF6 content. Because SF6 has a large molecular weight, the increase in density can improve the insulation performance of the gas, reduce the breakdown voltage, improve the safety of the equipment, and ensure the stable operation of the equipment.

[0003] However, the prior art has the following deficiencies: currently, SF6 and N2 mixed gases are generally tested and verified using a density relay calibrator, and the existing calibrators are generally carried in an external portable box for easy carrying outside, and are installed in an embedded manner, which is extremely inconvenient in subsequent inspection and maintenance, and the heat is directly dissipated in the portable box, which is easy to interfere with the temperature control of the internal temperature control components and cause the pipeline to heat up accordingly, resulting in interference with the accuracy of the detection data. Summary of the invention

[0004] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by implementing the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the description and other drawings of the description.

[0005] The purpose of the present invention is to overcome the above-mentioned shortcomings and to provide a SF6 and N2 mixed gas detection device. The instrument can be tilted and supported to be in a tilted state during use, which is convenient for the operator to operate. The heat generated by the operation of the instrument is directly discharged from the side wall without being interfered with by the box body. The heat insulation pad in the rear slot of the machine is used to separate the heat of the instrument. The input SF6 or N2 mixed gas is temperature-controlled by a temperature-controlled hood and enters the analysis validation box for detection data analysis after temperature control, thereby avoiding the interference of the operating temperature of the instrument with the temperature rise of the pipeline and interfering with its accuracy.

[0006] In order to achieve the above-mentioned purpose, the present invention is realized by the following technical scheme: a SF6 and N2 mixed gas detection device, including a portable box, a box body is arranged in the portable box, an effective tester is installed in the box body, an instrument is arranged in the effective tester, a control display screen is installed on the surface of the instrument, a sound tube is installed on one side of the control display screen, an inlet and outlet connector is installed on the other side of the control display screen, an electricity meter is installed on the side wall of the instrument, a power interface is arranged below the electricity meter, and hinge holes are opened on both sides of the instrument; an organic rear slot is opened at the rear of the instrument, an organic cover is installed in the machine rear slot, an even number of support rods are fixed on the body cover, and a cover handle is arranged between the support rods. The hinge holes on both sides of the instrument installed in the box body can cooperate with the instrument to swing in a hinged manner, so that the support rods can complete the support of the instrument, so that the instrument is separated from its box body, and the heat is discharged from the side wall, and the instrument is tilted and supported on the inner wall of the box body in an inclined state for easy operation by the operator.

[0007] The present invention is further improved, in which a plurality of lock holes are provided on the rear slot of the machine, a heat-insulating pad is provided in the rear slot of the machine, a plurality of lock posts are provided around the heat-insulating pad, a card block is installed on the lock post, a through slot is provided in the middle of the partition pad, a carrier plate is nested in the through slot, a temperature control cover is provided on the surface of the carrier plate, and a temperature sensing element is provided next to the temperature control cover. The heat-insulating pad is installed in the rear slot of the machine to isolate the heat generated inside the instrument during operation from interfering with the gas entering the intake pipe, so as to cause the temperature of the temperature-controlled gas to change, resulting in inaccurate data of the detection validation instrument.

[0008] The present invention is further improved, a conduit is installed on the carrier plate, one end of the conduit is connected to an air inlet pipe, the other end of the conduit is connected to a flow control tube, the other side of the flow control tube is connected to a connecting tube, an analysis validation box is arranged next to the connecting tube, and an air outlet pipe and a signal tube are arranged next to the air inlet pipe. The flow control tube mainly controls the flow of the incoming gas through the built-in structure, and changes the gas flow rate at the same time to avoid the gas flow rate being too fast under the drive of the internal pump body, and can eliminate the interference of impurity components in the gas on the sensor.

[0009] The present invention is further improved, the conduit runs through the temperature control cover, the temperature control cover is electrically coordinated with the temperature sensing element, the air inlet pipe, the air outlet pipe and the signal tube are respectively connected to the corresponding inlet and outlet connectors, the end of the air outlet pipe is connected to the analysis and validation box, the signal tube is electrically coordinated with the analysis and validation box, the inner side of the carrier plate on which the temperature control cover is installed is hollowed out, the thermal insulation pad is arranged between the rear slot of the machine and the body cover, and the other side of the instrument is in the shape of a through slot. The temperature control cover covers its conduit, and the temperature of the conduit is controlled with the assistance of the temperature sensing element, so that the gas flowing in the pipeline can be regulated in temperature, and the temperature stability of the pipeline is ensured under the hollow state design of the carrier plate to prevent subsequent cooling of the pipeline.

[0010] The present invention is further improved, the portable case is equipped with a case cover, a handle is fixed on the outer surface of the case cover, a lock block is fixed on the top of the case cover, buffers are installed at both ends of the portable case, a hinge sleeve is installed at the other end of the case cover, and a sealing strip is provided on the inner surface of the case cover. The sealing strip is provided on the inner surface of the case cover, so that the sealing of the case cover can be ensured during use, and the entry of external dust can be prevented after closing. The swingable instrument machine method is adopted, and the case body is in a sealed state as a whole.

[0011] The present invention is further improved, wherein a crossbeam is provided inside the buffer, and a plurality of buffer spring columns are passed through the crossbeam, a lock cap is screwed on the top of the buffer spring column, and a lower support pad is fixed on the bottom of the buffer spring column. The buffer spring column includes a buffer spring and a damping column, and through the cooperation of the two and the locking of the lock cap, the lower support pad is supported on both sides of the box body, so as to reduce the vibration transmission during the carrying and transportation process, and prevent the internal calibration instrument from being damaged by vibration.

[0012] The present invention is further improved, the crossbeam is fixed to both sides of the box, the lock cap is arranged above the crossbeam, the ends of the plurality of buffer spring columns are fixed to the lower support pad, the lower support pad is arranged on both sides of the box, and the thickness is higher than the box. The lower support pad fixed below the buffer spring column is higher than the box, so that the corresponding vibration force can be eliminated when the box is placed and carried, so as to ensure the anti-seismic ability of the box.

[0013] The present invention is further improved, the inner surface of the box is provided with a sealing groove, the outer surface of the box is fixed with a positioning lock, an inner pad is installed in the box, both sides of the inner pad are provided with telescopic shafts, the inner surface of the inner pad is provided with a support groove, a cleaning device is provided next to the inner pad, and a piece placing cylinder is provided at a position opposite to the cleaning device. The inner pad mainly plays a protective role, and the support groove on the inner pad can provide corresponding support for the instrument, and the telescopic shaft can be adjusted to allow the instrument to be disassembled and the tester can be taken out of the box for use.

[0014] The present invention is further improved, the cleaning device is provided with an outer protective box, the outer wall of the outer protective box is installed with a switch button, the outer protective box is installed with an exhaust pump, the side wall of the exhaust pump is fixed with an air outlet joint, and a pipe rack is provided below the air outlet joint. The exhaust pump is mainly used for cleaning the connecting pipes, and the exhaust pump is allowed to complete the cleaning process of the calibration instrument and the connected pipes after sucking and pressurizing the outside air, so as to prevent the last gas residue from remaining in the pipes.

[0015] The present invention is further improved, the outer protective box is fixed inside the box, the telescopic shaft is hinged with the hinge hole, the support slot is engaged with the support rod, the switch button is electrically matched with the exhaust pump, the instrument is placed above the inner pad, and the instrument is hinged with the telescopic shaft. The outer protective box is mainly used for the installation of the exhaust pump, and the storage tube in the box is arranged relative to the outer protective box, and the connection pipe can be placed in the storage tube, so that the connection pipe does not need to be carried when carrying.

[0016] Beneficial Effects

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] 1. After the box body of the present invention is opened, the built-in calibrator can swing and tilt through the hinge holes on both sides, and the bottom is supported on the inner wall of the box body, and the rear is supported by a support rod, so that the heat of the instrument can be directly discharged out of the portable box in a tilted state, and the heat will not interfere with the temperature rise of the internal pipes of the instrument. In addition, the hollow groove design on the temperature control cover and the carrier plate can continuously maintain the temperature of the pipe, so that the gas can remain stable when entering the analysis and verification box, avoiding the operating temperature of the instrument interfering with the temperature rise of the pipe and interfering with its accuracy.

[0019] 2. The present invention sets a heat insulation pad between the rear slot of the machine and the body cover to separate the heat inside the instrument and prevent the heat generated during the operation of the instrument from interfering with the temperature control of the temperature sensing element. The instrument can also be disassembled and used through the telescopic shaft on the side wall of the box, and the tester can be taken out of the box to form a variety of usage methods. At the same time, the built-in cleaning device can also clean the connecting pipe to prevent gas or foreign matter from remaining in the connecting pipe, causing abnormal test data.

[0020] 3. The present invention fixes the two sides of the box with cross beams, penetrates the buffer spring column on the cross beams, and fixes the top with a lock cap to prevent the buffer spring column from falling off, and fixes the bottom with a lower support pad to allow the lower support pad to offset the vibration force generated by the external transmission during the placement and carrying of the box, thereby avoiding damage to the internal calibrator components or the falling off of the joints. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the structure of a SF6 and N2 mixed gas detection device of the present invention;

[0022] Figure 2 It is a side view structural schematic diagram of a portable box in a SF6 and N2 mixed gas detection device of the present invention;

[0023] Figure 3 This is a schematic diagram of the unfolded structure of a portable box in a SF6 and N2 mixed gas detection device of the present invention;

[0024] Figure 4 It is a three-dimensional structural schematic diagram of a calibration instrument in a SF6 and N2 mixed gas detection device of the present invention;

[0025] Figure 5 It is a rear view structural schematic diagram of an instrument in a SF6 and N2 mixed gas detection device of the present invention;

[0026] Figure 6 This is a schematic diagram of the internal structure of the rear tank in a SF6 and N2 mixed gas detection device of the present invention;

[0027] Figure 7 This is a schematic diagram of the internal structure of a carrier plate in a SF6 and N2 mixed gas detection device of the present invention;

[0028] Figure 8 This is a schematic diagram of the internal structure of a box in a SF6 and N2 mixed gas detection device of the present invention;

[0029] Fig. 9 It is a schematic diagram of the three-dimensional structure of a cleaning device in a SF6 and N2 mixed gas detection device of the present invention;

[0030] Fig.10 The present invention is a schematic diagram of the operation flow of a SF6 and N2 mixed gas detection device.

[0031] In the figure: portable box 1, box cover 2, lifting handle 3, locking block 4, buffer 5, box body 11, calibrator 12, hinge sleeve 21, sealing strip 22, cross beam 51, lock cap 52, buffer spring column 53, lower support pad 54, sealing groove 111, inner pad 112, telescopic shaft 113, support card slot 114, storage tube 115, cleaning device 116, alignment lock 117, instrument 121, power interface 122, electricity meter 123, inlet and outlet connector 124, hand grip 125, sound tube 126, control display screen 127, hinge hole 128, outer protective box 1161, switch button 11 62. Exhaust pump 1163, air outlet connector 1164, pipe rack 1165, rear slot 1211, machine cover 1212, support rod 1213, cover handle 1214, thermal insulation pad 12111, locking column 12112, through slot 12113, locking hole 12114, block 12115, mounting plate 12116, temperature sensing element 12117, temperature control cover 12118, duct 121161, flow control tube 121162, air inlet pipe 121163, air outlet pipe 121164, signal pipe 121165, analysis and verification box 121166, connecting pipe 121167. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but are not used to limit the present invention.

[0033] In addition, in the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0034] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral body; it can be directly connected or indirectly connected through an intermediate medium, and it can be the internal connection of two elements or the interaction relationship between two elements. However, if it is indicated as a direct connection, it means that the two connected bodies are not connected through a transition structure, but are connected to form a whole through a connecting structure. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to the specific circumstances.

[0035] In the present invention, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0036] The present invention is further described below in conjunction with the accompanying drawings:

[0037] Example 1

[0038] As attached Figure 1 , 3 To Attachment Figure 7 As shown:

[0039] The present embodiment provides a SF6 and N2 mixed gas detection device, including a portable box 1, a box cover 2 is installed on the portable box 1, a lifting handle 3 is fixed on the outer surface of the box cover 2, a locking block 4 is fixed on the top of the box cover 2, buffers 5 are installed on both the front and rear ends of the portable box 1, a hinge sleeve 21 is installed on the other end of the box cover 2, a sealing strip 22 is provided on the inner surface of the box cover 2, a box body 11 is provided in the portable box 1, a validator 12 is installed in the box body 11, an instrument 121 is provided in the instrument 12, and a control display screen 127 is installed on the surface of the instrument 121. A speaker 126 is installed on one side of the control display screen 127, an inlet and outlet connector 124 is installed on the other side of the control display screen 127, a power meter 123 is installed on the side wall of the instrument machine 121, a power interface 122 is arranged below the power meter 123, and hinge holes 128 are provided on both sides of the instrument machine 121; an organic rear groove 1211 is provided at the rear of the instrument machine 121, a body cover 1212 is installed in the machine rear groove 1211, an even number of support rods 1213 are fixed on the body cover 1212, and a cover handle 1214 is provided between the support rods 1213. A plurality of lock holes 12114 are provided on the rear slot 1211 of the machine, a heat insulating pad 12111 is provided in the rear slot 12111, a plurality of lock columns 12112 are provided around the heat insulating pad 12111, a card block 12115 is installed on the lock column 12112, a through slot 12113 is provided in the middle of the partition pad 12111, a carrying plate 12116 is nested in the through slot 12113, a temperature control cover 12118 is provided on the surface of the carrying plate 12116, and a temperature sensing element 12117 is provided next to the temperature control cover 12118. A conduit 121161 is installed on the carrier plate 12116, one end of which is connected to an air inlet pipe 121163, the other end of which is connected to a flow control tube 121162, the other side of the flow control tube 121162 is connected to a connecting tube 121167, an analysis validation box 121166 is arranged next to the connecting tube 121167, and an air outlet pipe 121164 and a signal tube 121165 are arranged next to the air inlet pipe 121163.

[0040] Furthermore, the temperature control cover 12118 is connected via the temperature sensing element 12117, and the temperature of the temperature control cover 12118 is adjusted by the temperature sensing element 12117, and the temperature of the conduit 121161 is continuously controlled by the slots penetrating through the carrier plate 12116 until it is input into the analysis validation box 121166 for analysis.

[0041] Furthermore, the thermal insulation pad 12111 cooperates with the locking column 12112 and the block 12115 to separate the heat of the internal components of the instrument 121. Compared with the traditional box-type direct heat discharge, it can prevent the heat generated by the instrument itself from interfering with the accuracy of the detection gas.

[0042] The specific working principle is as follows:

[0043] The present invention opens the upper cover 2 and the handle 3 of the portable case 1, and the lock block 4 is disengaged from the lock. After the box body 11 is unfolded, the test instrument 12 is presented. During use, the instrument machine 121 can form an articulated swing with the assistance of the hinge hole 128. The upper support rod 1213 of the body cover 1212 fixed by bolts in the rear slot 1211 of the machine at the rear adapts to the support card slot of the inner pad to form a support. The instrument machine 121 just fits the inclined surface of the inner wall of the box body 11, and then the power interface 122 is connected with a wire harness. The power meter 123 displays the internal power storage. Then, the corresponding pipelines are connected on the inlet and outlet connectors 123, and the operation item to be operated is selected on the control display screen 127. The instrument machine 121 is running, and the heat insulation pad 12111 in the rear slot 1211 separates the instrument machine 121 to reduce its heat. The heat of the instrument machine 121 is normally discharged from the side wall, and the lock 12112 is locked in the card block 1 2115, the thermal insulation pad 12111 is fixed, the carrier plate 12116 passes through the through groove 12113, and the SF6 or N2 mixed gas is input into the inlet and outlet connector 124, and enters the conduit 121161 from the inlet and outlet connector 124, and the temperature of the pipeline is adjusted with the assistance of the temperature sensing element 12117 and the temperature control unit 12118 outside the conduit 121161, and the opening passing through the carrier plate 12116 is used for temperature conduction, so that the conduit 121161 maintains the specified position when entering the flow control tube 121162 and the analysis and verification box 121166, and finally is discharged from the outlet pipe 121164 in the analysis and verification box 121166, and the heat control of the instrument is realized to avoid its interference. The rear temperature sensing element 12117 is also under the cooperation of the temperature control cover 12118 and the on-board plate 12116, so that the conduit 121161 is wrapped in a specified constant temperature.

[0044] Embodiment 2:

[0045] As attached Figure 8 To Attachment Fig. 9 As shown:

[0046] Among them, a sealing groove 111 is provided on the inner surface of the box body 11, an alignment lock 117 is fixed on the outer surface of the box body 11, an inner pad 112 is installed in the box body 111, telescopic rotating shafts 113 are provided on both sides of the inner pad 112, a supporting groove 114 is provided on the inner surface of the inner pad 112, a cleaning device 116 is provided next to the inner pad 112, a placing tube 115 is provided at the opposite position of the cleaning device 116, an outer protective box 1161 is provided in the cleaning device 116, a switch button 1162 is installed on the outer wall of the outer protective box 1161, an exhaust pump 1163 is installed in the outer protective box 1161, an air outlet joint 1164 is fixed to the side wall of the exhaust pump 1163, and a pipe rack 1165 is provided below the air outlet joint 1164.

[0047] Furthermore, the telescopic shaft 113 is telescopic, and the length of the shaft is changed by telescoping. When connected to an instrument, the telescopic shaft is embedded in the instrument 121 to form auxiliary rotation and limit. When the instrument needs to be taken for work, it can be separated from the hinge hole 128 due to telescoping.

[0048] Furthermore, the outer protective box 1161 and the storage tube 115 have the same structure and shape. The outer protective box 1161 is just suitable for installing a cleaning device 116 of the same size, while the storage tube 115 is used to store the connecting pipe of the validation instrument.

[0049] The specific working principle is as follows:

[0050] The present invention forms a closure through the sealing groove on the top of the box body 11 with the cooperation of the box cover, and the aligning lock 117 is closed and fixed. After the box body 111 is unfolded, the inner pad 112 supports the calibrator, and the telescopic shafts 113 arranged on both sides can cooperate with the calibrator to perform hinged swing. When taking it for use, the telescopic shaft 113 can also be squeezed to separate the calibrator for use. Before use, the connecting pipe in the storage tube 115 can be taken out, and then the switch button 1162 in the outer protective box 1161 is cooperated to complete the opening of the exhaust pump 1163, so as to form exhaust and purify and pressurize its air body, and discharge it from the air outlet joint 1164, so that the connecting pipe can be cleaned accordingly to prevent gas residue in the connecting pipe.

[0051] Embodiment 3:

[0052] As attached Figure 2 As shown:

[0053] A crossbeam 51 is provided inside the buffer member 5 , and a plurality of buffer spring columns 53 are passed through the crossbeam 51 . A lock cap 52 is screwed on the top of the buffer spring column 53 , and a lower support pad 54 is fixed on the bottom of the buffer spring column 53 .

[0054] Furthermore, the lower support pad 54 is made of rubber, and has arc-shaped ends, which just fits the length of the crossbeam 51 to compensate for the inclined surface of the inner side of the box body. When no force is applied, the lower support pad 54 is higher than the bottom of the box body 11 to support the box body.

[0055] The specific working principle is as follows:

[0056] The present invention fixes the crossbeam 51 on the side wall of the box body, and then passes the buffer spring column 53 through the lock cap 52 on the top of the crossbeam 51 for screwing to fix the buffer spring column 53, and the bottom of the buffer spring column 53 is fixed to the lower support pad 54, and the lower support pad 54 is higher than the box body 11, so that the vibration force of the box body at the placement position can be correspondingly buffered and offset during the carrying and transportation process.

[0057] It should be understood that the embodiments disclosed in the present invention are not limited to the specific processing steps or materials disclosed herein, but should be extended to equivalent substitutions of such features understood by ordinary technicians in the relevant field. It should also be understood that the terms used herein are only used for the purpose of describing specific embodiments and are not meant to be limiting.

[0058] The "embodiment" mentioned in the specification means that the specific features or characteristics described in conjunction with the embodiment are included in at least one embodiment of the present invention. Therefore, the phrases or "embodiment" appearing in various places throughout the specification do not necessarily refer to the same embodiment.

[0059] In addition, the described features or characteristics may be combined in one or more embodiments in any other suitable manner. In the above description, some specific details, such as thickness, quantity, etc., are provided to provide a comprehensive understanding of the embodiments of the present invention. However, those skilled in the relevant art will understand that the present invention can be implemented without one or more of the above specific details or can also be implemented using other methods, components, materials, etc.

Claims

1. A SF6 and N2 mixed gas detection device, characterized in that: The portable case (1) comprises a box body (11) arranged in the portable case (1), a validating instrument (12) installed in the box body (11), an instrument (121) arranged in the instrument (12), a control display screen (127) installed on the surface of the instrument (121), a sound tube (126) installed on one side of the control display screen (127), an inlet and outlet connector (124) installed on the other side of the control display screen (127), an electricity meter (123) installed on the side wall of the instrument (121), a power interface (122) arranged below the electricity meter (123), and hinge holes (128) opened on both sides of the instrument (121); An organic rear slot (1211) is provided at the rear of the instrument (121), and an organic body cover (1212) is installed in the organic body rear slot (1211). An even number of support rods (1213) are fixed on the organic body cover (1212), and a cover handle (1214) is provided between the support rods (1213).

2. The SF6 and N2 mixed gas detection device according to claim 1, characterized in that: A plurality of lock holes (12114) are provided on the rear slot (1211), a heat insulation pad (12111) is arranged in the rear slot (1211), a plurality of lock columns (12112) are arranged around the heat insulation pad (12111), a clamping block (12115) is installed on the lock column (12112), a through groove (12113) is provided in the middle of the partition pad (12111), a carrier plate (12116) is nested in the through groove (12113), a temperature control cover (12118) is arranged on the surface of the carrier plate (12116), and a temperature sensing element (12117) is arranged next to the temperature control cover (12118).

3. The SF6 and N2 mixed gas detection device according to claim 2, characterized in that: A conduit (121161) is installed on the carrier plate (12116), one end of the conduit (121161) is connected to an air inlet pipe (121163), the other end of the conduit (121161) is connected to a flow control tube (121162), the other side of the flow control tube (121162) is connected to a connecting tube (121167), an analysis test box (121166) is arranged next to the connecting tube (121167), and an air outlet pipe (121164) and a signal tube (121165) are arranged next to the air inlet pipe (121163).

4. The SF6 and N2 mixed gas detection device according to claim 3 is characterized in that: The conduit (121161) passes through the temperature control cover (12118), and the temperature control cover (12118) is electrically coordinated with the temperature sensing element (12117). The air inlet pipe (121163), the air outlet pipe (121164) and the signal tube (121165) are respectively connected to the corresponding inside of the inlet and outlet connector (124). The end of the air outlet pipe (121164) is connected to the analysis and validation box (121166). The signal tube (121165) is electrically coordinated with the analysis and validation box (121166). The inner side of the carrier plate (12116) on which the temperature control cover (12118) is installed is in a hollow state. The thermal insulation pad (12111) is arranged between the rear groove (1211) and the body cover (1212). The other side of the instrument (121) is in the shape of a through groove.

5. The SF6 and N2 mixed gas detection device according to claim 1, characterized in that: The portable box (1) is provided with a box cover (2), a handle (3) is fixed on the outer surface of the box cover (2), a locking block (4) is fixed on the top of the box cover (2), buffer components (5) are installed at both the front and rear ends of the portable box (1), a hinge sleeve (21) is installed at the other end of the box cover (2), and a sealing strip (22) is provided on the inner surface of the box cover (2).

6. The SF6 and N2 mixed gas detection device according to claim 5, characterized in that: A crossbeam (51) is arranged inside the buffer component (5), and a plurality of buffer spring columns (53) are passed through the crossbeam (51). A lock cap (52) is screwed on the top of the buffer spring column (53), and a lower support pad (54) is fixed on the bottom of the buffer spring column (53).

7. The SF6 and N2 mixed gas detection device according to claim 6, characterized in that: The crossbeam (51) is fixed on both sides of the box body (11), the lock cap (52) is arranged above the crossbeam (51), and the ends of a plurality of buffer spring columns (53) are fixed on the lower support pad (54). The lower support pad (54) is arranged on both sides of the box body (11) and is thicker than the box body (11).

8. The SF6 and N2 mixed gas detection device according to claim 7, characterized in that: The inner surface of the box body (11) is provided with a sealing groove (111), the outer surface of the box body (11) is fixed with a positioning lock (117), an inner pad (112) is installed in the box body (111), telescopic rotating shafts (113) are arranged on both sides of the inner pad (112), a supporting groove (114) is provided on the inner surface of the inner pad (112), a cleaning device (116) is arranged next to the inner pad (112), and a piece placing cylinder (115) is arranged at a position opposite to the cleaning device (116).

9. The SF6 and N2 mixed gas detection device according to claim 8, characterized in that: An outer protective box (1161) is arranged inside the cleaning device (116), a switch button (1162) is installed on the outer wall of the outer protective box (1161), an exhaust pump (1163) is installed inside the outer protective box (1161), an air outlet joint (1164) is fixed on the side wall of the exhaust pump (1163), and a pipe rack (1165) is arranged below the air outlet joint (1164).

10. The SF6 and N2 mixed gas detection device according to claim 9, characterized in that: The outer protective box (1161) is fixed inside the box body (11), the telescopic shaft (113) is hingedly matched with the hinge hole (128), the support slot (114) is engaged with the support rod (1213), the switch button (1162) is electrically matched with the exhaust pump (1163), the instrument machine (121) is placed above the inner pad (112), and the instrument machine (121) is hingedly matched through the telescopic shaft (113).

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