Large-scale explosion-proof product detection equipment

Abstract

The invention relates to explosion-proof equipment, in particular to large-scale explosion-proof product detection equipment which comprises a detection bin, the detection bin is connected with a movable sealing door, the detection bin is further connected with an environment control device, the movable sealing door is connected with a working trolley, the working trolley is supported from the inner end through a plurality of walking wheels, and the outer end of the working trolley is supported through an outer supporting seat. In a test state, all the walking wheels support the working trolley together, when the working trolley is pulled out along with the movable end socket, the walking wheel close to the inner end supports the inner end of the working trolley, the outer supporting seat supports the outer end of the working trolley, then large-scale anti-explosion products to be detected such as an electrical cabinet, a transformer and a high-power motor can be placed, and the working trolley is long and not prone to deformation. A plurality of anti-explosion products can be detected at the same time, in the detection process, the transverse framework and the walking wheels jointly form an anti-impact supporting structure, the overall weight of the working trolley is large, the impact force has small influence on the working trolley, and then the working trolley can be used for a long time.

Description

TECHNICAL FIELD

[0001] The present application relates to explosion-proof equipment, in particular to large explosion-proof product detection equipment. BACKGROUND

[0002] Explosion-proof products are widely used in mines, factories, ships and other electrical equipment. The products are designed to be explosion-proof to ensure safety during use. Explosion-proof products are used in environments containing explosive gases.

[0003] To ensure the explosion-proof performance, the skilled person in the art needs to test the explosion-proof performance after producing the explosion-proof product. The explosion-proof product is placed in a simulated atmosphere environment and turned on for a certain period of time to detect the explosion-proof performance. To improve the detection efficiency, the skilled person in the art has developed a detection device, which includes a detection chamber, a mobile sealing door connected to the detection chamber, and an environment control device connected to the detection chamber. The detection chamber includes an explosion-proof chamber body, and the mobile sealing door includes an explosion-proof door body. A sealing structure is provided between the explosion-proof door body and the detection chamber. The environment control structure includes a pipe opening provided on the explosion-proof chamber body, which is connected to a gas tank system, thereby controlling the atmosphere environment in the detection chamber and achieving the purpose of quickly detecting the performance of the explosion-proof product.

[0004] The current detection device can only be used to detect small explosion-proof products. For explosion-proof products with large volume and weight, the existing detection device cannot provide stable support and installation, and cannot be detected. SUMMARY

[0005] The present application aims to overcome the shortcomings of the prior art and provide a large explosion-proof product detection device.

[0006] The present application is achieved by the following technical solutions: a large explosion-proof product detection device, including a detection chamber, the detection chamber is connected with a mobile sealing door, the detection chamber is also connected with an environment control device, The detection chamber includes an explosion-proof chamber body. The mobile sealing door includes an explosion-proof door body, and a sealing structure is provided between the explosion-proof door body and the detection chamber. The environment control structure includes a pipe opening provided on the explosion-proof chamber body, which is connected to a gas tank system, The explosion-proof chamber body selects an explosion-proof tank, the explosion-proof tank includes a cylinder and a fixed head, the cylinder is connected with a saddle, the explosion-proof door body includes a movable head, the movable head is connected with a head support at the lower end, the head support is connected with a guide rail through a wheel set at the lower end, an outer support seat is connected with the inner wall of the movable head, the outer support seat includes a plurality of vertical plates connected with the movable head, a connecting vertical plate is connected with the inner end face of each vertical plate, the workbench trolley includes a transverse panel, a support rib plate is arranged on the lower end face of the panel, the support rib plate has a plurality of support rib plates, the support rib plate is parallel to the length direction of the panel, a plurality of bottom plates are installed between the lower ends of each support rib plate, an inner connecting plate is connected between the inner end portions of each support rib plate, an outer connecting plate is connected between the outer end portions of each support rib plate, the inner connecting plate, the support rib plate and the outer connecting plate form a transverse framework, the panel is connected above the transverse framework, the outer connecting plate is connected with the connecting vertical plate, and then the workbench trolley is connected with the outer support seat, A walking wheel support frame is installed on both sides of the transverse framework, a plurality of groups of walking wheels are installed on the lower end of the walking wheel support frame, the distribution density of the walking wheels close to the inner end is greater than that of the walking wheels close to the outer end, a track matched with the walking wheels is welded and fixed on the inner wall of the cylinder, the workbench trolley is supported by the inner end through a plurality of walking wheels, and the outer end of the workbench trolley is supported by the outer support seat, in the test state, each walking wheel supports the workbench trolley together, when the workbench trolley is pulled out with the movable head, the walking wheels close to the inner end support the inner end of the workbench trolley, and the outer support seat supports the outer end of the workbench trolley, and large to-be-detected explosion-proof products can be placed.

[0007] Further, the sealing structure includes a cylinder flange fixed with the cylinder, the movable head is fixed with a head flange, a clamp is installed between the cylinder flange and the head flange, a groove matched with the cylinder flange and the head flange is processed on the inner side of the clamp, a plurality of limiting teeth are uniformly processed on the outer edge of the head flange, an opening matched with the limiting teeth is processed on the clamp, the limiting teeth can be inserted into the groove through the opening, the clamp is connected with a rotary driving device, the rotary driving device includes a driving lug fixed on the side of the clamp, a driving oil cylinder connected with the driving lug is hinged on the saddle, an oil cylinder seat matched with the driving oil cylinder is installed outside the saddle, the lower end of the driving oil cylinder is hinged with the oil cylinder seat, two driving oil cylinders alternately provide upward thrust, thereby driving the clamp to rotate, a sealing ring accommodating groove is processed on the cylinder flange, a sealing ring is installed in the sealing ring accommodating groove, the sealing ring selects an annular air bag, the outer end of the sealing ring accommodating groove is rectangular in cross section, in the normal state, the annular air bag is clamped in the sealing ring accommodating groove, the annular air bag does not exceed the sealing ring accommodating groove, thereby avoiding friction with the head flange, a gas pipe insertion hole corresponding to the sealing ring accommodating groove is processed on the cylinder flange, the annular air bag is connected with a gas pipe, the gas pipe extends to the outside of the cylinder flange through the gas pipe insertion hole and is connected to a high-pressure gas source, after the clamp is rotated, the annular air bag is inflated, thereby realizing sealing.

[0008] Further, a wedge-shaped wear-resistant block is welded and fixed outside the limiting teeth, and the side of the wedge-shaped wear-resistant block facing the rotating direction of the clamp is a thin-walled side; during the rotation of the clamp, the head flange is close to the cylinder flange and is pressed against the cylinder flange under the action of the wedge-shaped wear-resistant block.

[0009] Further, support rollers are installed on the saddle on both sides of the clamp, and the clamp is supported by the support rollers; a pushing structure for laterally pushing the clamp is further installed on the cylinder, and the pushing structure comprises a pushing seat installed on the upper end of the cylinder, a pushing rod installed on the pushing seat, and a pushing head installed at the end of the pushing rod and matched with the clamp; the pushing head is matched with the side surface of the clamp through a ball.

[0010] Further, an auxiliary starting device for starting the movement of the mobile head is further arranged on the saddle, and the auxiliary starting device comprises a pushing oil cylinder fixed on the saddle, a guide head matched with the wheel set and installed at the end of the piston rod of the pushing oil cylinder, and a tapered guide groove matched with the guide head and processed on the wheel set; when the wheel set drives the mobile head to approach the cylinder flange, the guide head is inserted into the guide groove to guide the wheel set, so that the head flange on the upper side of the wheel set is opposite to the cylinder flange; the pushing oil cylinder is used for buffering; when the wheel set drives the mobile head to move away from the cylinder flange, the pushing oil cylinder acts to push the wheel set to start the movement, and then the walking driving motor acts, so that the starting power of the walking driving motor can be reduced.

[0011] Further, the cylinder is connected with a blast venting structure, the blast venting structure comprises a blast venting flange matched with the pipe opening, a deformation plate installation groove processed at the lower end of the blast venting flange, and a deformation plate installed in the deformation plate installation groove and in sealing connection with the bottom of the deformation plate installation groove; the blast venting flange is connected with a blast venting pipe, the blast venting pipe comprises a reducing pipe connected with the blast venting flange, the inner diameter of the reducing pipe gradually increases from the inside to the outside, the outer end of the reducing pipe is connected with a buffer pipe, and a blocking cap is installed at the outer end of the buffer pipe; a relief hole is processed on the reducing pipe, the buffer pipe and the blocking cap, and the relief holes are arranged in rows and columns; during the blast venting, the pressure in the cylinder is increased to deform the deformation plate, the deformed deformation plate moves into the blast venting pipe, air in the blast venting pipe is used for buffering, gas is discharged through the relief holes to release pressure, a blast venting cavity is formed by the blocking cap, the deformed pipe and the buffer pipe, the minimum inner diameter of the reducing pipe is smaller than the inner diameter of the deformation plate, the deformation plate restores the shape in the buffer pipe, and the cylinder is connected with the outside after the blast venting through the blast venting structure.

[0012] Further, the barrel body is also connected with a cable mounting device, the cable mounting device comprises a plurality of cable insertion holes distributed along the length direction of the barrel body, cables are inserted and mounted in the cable insertion holes, a communication joint is welded and fixed at the outer end of the cable insertion hole, a sealing gasket and a compression nut are mounted through the communication joint, which are used for fixing the cables, a plurality of power cables are mounted through the plurality of cable insertion holes, one cable insertion hole inserts and mounts one single-core cable, which corresponds to one phase power supply, and a cable hanging structure is also mounted in the barrel body, the cable hanging structure comprises cable hooks mounted at the top of the barrel body, the cable hooks are a plurality of and are distributed along the length direction of the barrel body, and the single-core cables are hung separately, and the bending allowance of the cables when being hung is used for adapting to the wiring positions of different large-sized explosion-proof products to be detected.

[0013] The beneficial effects of the present application are that: the workbench trolley is supported by the plurality of walking wheels from the inner end and by the outer support seat from the outer end, in the testing state, the walking wheels jointly support the workbench trolley, when the workbench trolley is pulled out with the mobile head, the walking wheels close to the inner end support the inner end of the workbench trolley, and the outer support seat supports the outer end of the workbench trolley, thereby being capable of placing large-sized explosion-proof products to be detected, such as electrical cabinets, transformers, high-power motors, etc., and the workbench trolley is relatively long, capable of simultaneously detecting a plurality of explosion-proof products, in the detection process, the transverse frame and the walking wheels jointly constitute an anti-impact support structure, the overall weight of the workbench trolley is relatively heavy, the impact force has a relatively small influence on the workbench trolley, thereby being capable of long-term use. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is a structural schematic view of the embodiment 1; Figure 2 It is a top view of the saddle; Figure 3 It is a structural schematic view of the wheel set; Figure 4 It is a schematic view of the connection relationship between the wheel set and the mobile head; Figure 5 It is a schematic view of the sealing structure; Figure 6 It is Figure 1 It is a partial enlarged view of position A in the middle; Figure 7 It is Figure 1 It is a partial enlarged view of position B in the middle; Figure 8 It is Figure 5 It is a partial enlarged view of position C in the middle; Figure 9 It is a structural schematic view of the wedge-shaped wear-resistant block; Figure 10 It is a schematic view of the connection relationship between the workbench trolley and the barrel body; Figure 11 It is a top view of the workbench trolley; Figure 12Figure 1 is a schematic diagram of the connection between the working platform and the mobile head; Figure 13 Figure 2 is a schematic diagram of the cross section of the working platform; Figure 14 Figure 3 is a schematic diagram of the structure of the walking wheel; Figure 15 Figure 4 is a schematic diagram of the cross section of the explosion relief structure; Figure 16 Figure 5 is a schematic diagram of the cross section of the cable installation device; Figure 17 Figure 6 is a schematic diagram of the position relationship between the ladder stand and the cylinder in Example 2; Figure 18 Figure 7 is a schematic diagram of the position relationship between the ladder stand and the working platform in Example 2.

[0015] 1, cylinder; 2, fixed head; 3, mobile head; 4, air exhaust pipe; 5, air inlet pipe; 6, saddle; 602, oil cylinder seat; 7, guide rail; 8, wheel set; 801, head support; 802, positioning groove; 803, walking drive motor; 804, guide groove; 9, sealing device; 901, head flange; 902, wedge-shaped wear block; 903, clamp; 904, drive oil cylinder; 905, drive lug; 906, supporting roller; 907, opening; 908, cylinder flange; 909, sealing ring accommodating groove; 910, annular air bag; 911, air pipe; 912, pushing seat; 913, pushing rod; 914, pushing head; 915, ball; 916, wedge-shaped wear block; 917, limiting tooth; 10, pipe opening; 11, cable installation device; 1101, communication joint; 1102, compression nut; 1103, sealing gasket; 12, working platform; 1201, outer connecting plate; 1202, reinforcing rib; 1203, supporting rib plate; 1204, walking wheel support frame; 1205, walking wheel; 1206, bottom plate; 1207, panel; 1208, channel steel; 1209, 1209, spacer plate; 1210, main shaft; 1211, track; 1212, roller body; 1213, sleeve; 1214, inner connecting plate; 1215, cross rib; 1216, vertical plate; 1217, connecting vertical plate; 13, pushing oil cylinder; 14, guide head; 15, cable hook; 16, thermal imager; 1701, explosion relief flange; 1702, deformation plate; 1703, reducing pipe; 1704, buffer pipe; 1705, blocking cap; 1801, ladder stand; 1802, lifting rod; 1803, warning device; 1804, proximity switch; 1805, lateral track; 1806, inner stop block; 1807, blocking rod; 1808, wheel. Detailed Implementation

[0016] In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0017] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0018] Example 1 like Figures 1-16 As shown, a large-scale explosion-proof product testing equipment includes a testing chamber, which comprises an explosion-proof chamber body. The explosion-proof chamber body is selected from explosion-proof containers, which include a cylindrical body 1 and a fixed end cap 2. The cylindrical body 1 is made of 75mm thick Q345R steel rolled and welded, with a length of 7040mm and an inner diameter of 3700mm. It has a design pressure of 5MPa and a design temperature of 110℃, which can meet the testing requirements of large-scale explosion-proof products. The fixed end cap 2 is welded and installed at the end of the cylindrical body 1. The cylindrical body 1 is fixed to the foundation by a saddle 6. The cylindrical body 1 and the saddle 6 are welded and fixed, and the saddle 6 is fixed to the foundation by ground bolts, thereby ensuring the stability of the cylindrical body 1. During the testing process, it was found that due to the large weight and inertia of the testing chamber itself, the impact force on the foundation during the explosion-proof test is small, and the service life is long.

[0019] The detection bin is connected with a movable sealing door, guide rails 7 are fixed on the foundation, the movable sealing door comprises an explosion-proof door body, the explosion-proof door body comprises a movable head 3, the lower end of the movable head 3 is fixedly connected with a head support 801, the lower end of the head support 801 is connected with the guide rails 7 through a wheel set 8, the wheel set 8 is processed with positioning grooves 802 matched with the guide rails 7, so that the movable head 3 moves along a straight line, and then can be sealed with the cylinder body 1, the wheel set 8 is connected with a walking driving motor 803, the saddle 6 is also provided with an auxiliary starting device for pushing and starting the movable head 3, the auxiliary starting device comprises a jacking oil cylinder 13 fixed on the saddle 6, a guide head 14 matched with the wheel set 8 is arranged at the end of the piston rod of the jacking oil cylinder 13, the guide head 14 is conical and is hot-pressed from a steel plate, the wheel set 8 is processed with a conical guide groove 804 matched with the guide head 14, when the wheel set 8 drives the movable head 3 to approach the flange of the cylinder body 1, the guide head 14 is inserted into the guide groove 804, so that the wheel set 8 is guided, the head flange 901 on the upper side of the wheel set 8 is opposite to the cylinder flange 908, and meanwhile, the limiting teeth 917 can be opposite to the opening 907, in the process, the jacking oil cylinder 13 is used for buffering, when the wheel set 8 drives the movable head 3 to move away from the cylinder flange 908, the jacking oil cylinder 13 acts to push and start the wheel set 8 to move, and then the walking driving motor 803 acts, so that the starting power of the walking driving motor 803 can be reduced, a sealing structure is arranged between the explosion-proof door body and the detection bin, the sealing structure comprises a cylinder flange 908 welded and fixed with the cylinder body 1, a head flange 901 welded and fixed with the movable head 3, a clamp 903 arranged between the cylinder flange 908 and the head flange 901, grooves matched with the cylinder flange 908 and the head flange 901 are arranged in the inner side of the clamp 903, a plurality of limiting teeth 917 are uniformly processed on the outer edge of the head flange 901, an opening 907 matched with the limiting teeth 917 is processed on the clamp 903, the limiting teeth 917 can be inserted into the groove through the opening 907, the clamp 903 is connected with a rotary driving device, the rotary driving device comprises driving ears 905 fixed on the two side portions of the clamp 903, the saddle 6 is hingedly connected with driving oil cylinders 904 connected with the driving ears 905, the saddle 6 is externally provided with oil cylinder seats 602 matched with the driving oil cylinders 904, the lower end of the driving oil cylinder 904 is hingedly connected with the oil cylinder seat 602, the two driving oil cylinders 904 alternately provide upward thrust, so that the clamp 903 can be driven to rotate, when closed, the clamp 903 is rotated to make the limiting teeth 917 deviate from the opening 907, a wedge-shaped wear-resistant block 902 is welded and fixed on the outer side of the limiting teeth 917, one side of the wedge-shaped wear-resistant block 902 towards the rotating direction of the clamp 903 is a thin-walled side, in the process of rotation of the clamp 903, the head flange 901 approaches and is pressed against the cylinder flange 908 under the action of the wedge-shaped wear-resistant block 902, in order to ensure the stable rotation of the clamp 903, support rollers 906 are also arranged on the two sides of the clamp 903 on the saddle 6, the clamp 903 is supported by the support rollers 906,The action force between the cylinder flange 908 and the head flange 901 is reduced, and a pushing structure for transversely pushing the clamp hoop 903 is also installed on the cylinder 1. The pushing structure includes a pushing seat 912 installed on the upper end of the cylinder 1, a pushing rod 913 installed on the pushing seat 912, and a pushing head 914 installed at the end of the pushing rod 913 and matched with the clamp hoop 903. The pushing head 914 is matched with the side surface of the clamp hoop 903 through the ball 915, thereby pushing the upper end of the clamp hoop 903 and making the clamp hoop 903 vertical, reducing the deflection of the clamp hoop 903, and further reducing the action force between the cylinder flange 908 and the head flange 901. A sealing ring accommodating groove 909 is processed on the cylinder flange 908, and a sealing ring is installed in the sealing ring accommodating groove 909. In this embodiment, the sealing ring is an annular air bag 910 made of butyl rubber, which has long service life and strong compression resistance. The outer end of the sealing ring accommodating groove 909 is rectangular in cross section, and the annular air bag 910 is clamped in the sealing ring accommodating groove 909 in normal state, without exceeding the sealing ring accommodating groove 909, thereby avoiding friction with the head flange 901. A gas pipe insertion hole corresponding to the sealing ring accommodating groove 909 is processed on the cylinder flange 908, the annular air bag 910 is connected with a gas pipe 911, the gas pipe 911 extends to the outside of the cylinder flange 908 through the gas pipe insertion hole and is connected to a high-pressure gas source, and after the rotation of the clamp hoop 903 is completed, the annular air bag 910 is inflated, thereby realizing sealing. Since the gap between the cylinder flange 908 and the head flange 901 is small, the annular air bag 910 deforms after being filled with high-pressure gas, blocks the gap, and has high compression resistance. In the test, the sealing ring and the sealing gasket are used for sealing, but they are easily damaged and deformed in a high-pressure environment and need to be frequently replaced.

[0020] The detection bin is connected with a workbench 12, the workbench 12 is connected with the explosion-proof door body and can move with the explosion-proof door body. Specifically, an outer support seat is welded and fixed at the lower end of the inner wall of the movable head 3. The outer support seat comprises a plurality of vertical plates 1216 which are vertically welded and fixed with the movable head 3. A connecting vertical plate 1217 is welded and fixed at the inner end of each vertical plate 1216, so as to ensure the connecting strength between the connecting vertical plate 1217 and the movable head 3. The workbench 12 comprises a horizontal panel 1207 which is made of a steel plate with a thickness of 20 mm. A support rib plate 1203 is welded and fixed at the lower end of the panel 1207. The support rib plate 1203 is made of an I-shaped steel. There are a plurality of support rib plates 1203. The support rib plates 1203 are parallel to the length direction of the panel 1207. A plurality of bottom plates 1206 are installed between the lower ends of the support rib plates 1203 at intervals. The bottom plates 1206 are made of a steel plate with a thickness of 30 mm. An inner connecting plate 1214 is welded and fixed between the inner ends of the support rib plates 1203. An outer connecting plate 1201 is welded and fixed between the outer ends of the support rib plates 1203. A reinforcing rib 1202 is further welded between the outer connecting plate 1201 and each support rib plate 1203. The inner connecting plate 1214, the support rib plate 1203 and the outer connecting plate 1201 form a horizontal framework. The panel 1207 is fixed above the horizontal framework, so as to obtain the workbench 12 with high structural strength. The outer connecting plate 1201 is fixed with the connecting vertical plate through bolts, and then the workbench 12 is fixed and connected with the outer support seat. Traveling wheel support frames 1204 are installed at both sides of the horizontal framework. A plurality of groups of traveling wheels 1205 are installed at the lower end of the traveling wheel support frame 1204. The distribution density of the traveling wheels 1205 close to the inner end is greater than that of the traveling wheels 1205 close to the outer end. The traveling wheel support frame 1204 is composed of two mutually parallel side vertical channel steels 1208. The upper end of the channel steel 1208 is fixed with the panel 1207. A backing plate 1209 is welded at the lower end of the channel steel 1208, so as to strengthen the strength of the lower end of the channel steel 1208. A track 1211 matched with the traveling wheels 1205 is welded and fixed at the inner wall of the cylinder 1. The traveling wheels 1205 are selected as track wheels. The track wheels comprise a main shaft 1210. The main shaft 1210 is connected with a roller body 1212 through a sleeve 1213. The sleeve 1213 is made of bearing steel and has high wear resistance. Lubricating oil is injected between the sleeve 1213, the main shaft 1210 and the roller body 1212, so as to have strong bearing capacity. A horizontal rib 1215 is further welded and fixed between each support rib plate 1203, so as to improve the stability. In this embodiment, the workbench 12 is supported from the inner end by the plurality of traveling wheels 1205, and the outer end of the workbench 12 is supported by the outer support seat. In the testing state, the workbench 12 is supported by the traveling wheels 1205. When the workbench 12 is pulled out with the movable head 3, the inner end of the workbench 12 is supported by the traveling wheels 1205 close to the inner end, and the outer end of the workbench 12 is supported by the outer support seat, so as to be able to place large explosion-proof products to be detected, such as electrical cabinets, transformers and high-power motors. The workbench 12 is relatively long,The multiple explosion-proof products can be detected simultaneously. In the detection process, the transverse framework and the walking wheel 1205 jointly constitute an impact-resistant support structure. The overall weight of the trolley 12 is relatively heavy, and the impact force has a small effect on the trolley 12, thereby enabling long-term use. Since the track 1211 and the walking wheel 1205 are in rigid contact, sparks may be generated during relative movement. Therefore, before moving the working platform, the gas environment in the cylinder 1 needs to be pretreated to discharge combustible gas and dust.

[0021] The detection bin is also connected with an environment control device. The environment control device includes a pipe 10 installed on the cylinder 1, and the pipe 10 is connected to a gas tank system. An air exhaust pipe 4 is also installed on the fixed head 2, and an air inlet pipe 5 is installed on the moving head 3. During use, after the detection of the explosion-proof product is completed, the moving head 3 and the cylinder 1 are butted and sealed. Air is first filled through the air inlet pipe 5 and discharged through the air exhaust pipe 4. After 1-2 min, the air inlet pipe 5 is closed, the cylinder 1 is vacuumized through the air exhaust pipe 4, and then the mixed gas configured is filled through the pipe 10. The mixed gas is configured according to the working environment of the explosion-proof product, thereby detecting the performance of the explosion-proof product. The environment control device also includes a pressure sensor, a temperature sensor, etc. installed in the cylinder 1 through the pipe 10 to monitor the environment in the cylinder 1 in real time.

[0022] The cylinder body 1 is connected with a pressure relief structure, the pressure relief structure is installed at one of the pipe mouths 10, the pressure relief structure comprises a pressure relief flange 1701 matched with the pipe mouth 10, a deformation plate mounting groove is processed at the lower end of the pressure relief flange 1701, a deformation plate 1702 is installed in the deformation plate mounting groove, the deformation plate 1702 and the bottom of the deformation plate mounting groove are sealed and connected through polyurethane adhesive, the deformation plate 1702 is selected from a stainless steel plate, the pressure relief flange 1701 is connected with a pressure relief pipe, the pressure relief pipe comprises a reducing pipe 1703 connected with the pressure relief flange 1701, the inner diameter value of the reducing pipe 1703 gradually increases from inside to outside, the outer end of the reducing pipe 1703 is connected with a buffer pipe 1704, the outer end of the buffer pipe 1704 is installed with a blocking cap 1705, pressure relief holes are processed on the reducing pipe 1703, the buffer pipe 1704 and the blocking cap 1705, the pressure relief holes are distributed in rows and columns, in the process of pressure relief, the pressure in the cylinder body 1 increases and extrudes the deformation plate 1702 to deform, the deformation plate 1702 moves into the pressure relief pipe after deformation, air in the pressure relief pipe forms a buffer, at the same time, gas is discharged through the pressure relief holes to relieve pressure, a pressure relief cavity is formed through the blocking cap 1705 and the deformation pipe and the buffer pipe 1704, at the same time, the blocking cap 1705 prevents the deformation plate 1702 from being separated, the thickness value of the deformation plate 1702 and the length value of the buffer pipe 1704 are selected according to the design pressure, in the embodiment, the design pressure is 5MPa, the thickness value of the deformation plate 1702 is 8mm, the inner diameter of the buffer pipe 1704 is 280mm, the length of the buffer pipe 1704 is 600mm, the minimum inner diameter value of the reducing pipe 1703 is smaller than the inner diameter value of the deformation plate 1702, the deformation plate 1702 restores the shape in the buffer pipe 1704 and can avoid falling back into the cylinder body 1, after pressure relief through the pressure relief structure, the cylinder body 1 is connected with the outside, and then the pressure is quickly reduced.

[0023] The large explosion-proof product detection equipment provided by the embodiment is used for large explosion-proof products, and the corresponding power cable area is large. In the embodiment, the cylinder body 1 is further connected with a cable mounting device 11. The cable mounting device 11 includes a plurality of cable jacks distributed along the length direction of the cylinder body 1. The cables are inserted and mounted in the cable jacks. A communication joint 1101 is welded and fixed at the outer end of the cable jack. A sealing gasket 1103 and a compression nut 1102 are mounted through the communication joint 1101, so as to fix the cables. Since the specifications of the large explosion-proof products to be detected are different, the corresponding cable connection positions are also different. The multi-core power cable is not convenient to bend and pull. Through the plurality of cable jacks, a plurality of power cables can be mounted. One cable jack is inserted and mounted with one single-core cable, corresponding to one phase power supply. After a plurality of cables are combined, three-phase power required by the large explosion-proof product is obtained. When the large explosion-proof product to be detected is connected, the single-core cables are combined, so that the operation is facilitated. In order to ensure the margin of the cables in the cylinder body 1, a cable hanging structure is further mounted in the cylinder body 1. The cable hanging structure includes cable hooks 15 mounted at the top of the cylinder body 1. The cable hooks 15 are a plurality of cable hooks distributed along the length direction of the cylinder body 1, so as to separately hang the single-core cables. The bending of the cables when being hung obtains a margin, which is used to adapt to the wiring positions of different large explosion-proof products to be detected. The inner diameter of the cylinder body 1 is large, so that the operator can enter the inside of the cylinder body 1 to wire. The moving head 3 is moved inward, and a space for the operator to enter and exit the cylinder body 1 is reserved.

[0024] A thermal imager 16 is further mounted in the cylinder body 1 and faces the inner cavity of the cylinder body 1. The thermal imager 16 is a plurality of thermal imagers distributed at a plurality of positions in the cylinder body 1, so as to collect the temperature change information of the large explosion-proof product in the detection process and record the information to the upper computer.

[0025] The working steps of the large explosion-proof product detection equipment provided by the embodiment are as follows. After the large explosion-proof product detection equipment is installed, air is introduced to ensure the air quality in the cylinder body 1. The cables are worn and mounted. The moving head 3 is driven by the walking driving motor 803 to move outward, and the workbench trolley 12 is pulled out at the same time. The large explosion-proof product is installed to the predetermined position of the workbench trolley 12. Then the moving head 3 is driven by the walking driving motor 803 to move inward to the predetermined position, and a passage for the operator to enter and exit is reserved. The operator enters the cylinder body 1, connects the cables, and then leaves the cylinder body 1. The moving head 3 is driven by the walking driving motor 803 to move inward to the position where the moving head 3 cooperates with the cylinder body 1. The clamp 903 is rotated, so that the head flange 901 and the cylinder flange 908 are tightly attached. Air is filled into the annular air bag 910. The head flange 901 and the cylinder flange 908 are connected and sealed through the annular air bag 910. First, air is filled through the air inlet pipe 5 and discharged through the air outlet pipe 4. After 1-2 minutes, the air inlet pipe 5 is closed, the cylinder body 1 is vacuumized through the air outlet pipe 4, and then the mixed gas configured is filled through the pipe opening 10. After the gas filling is completed, the large explosion-proof product to be detected is started to detect.

[0026] Example 2 As Figures 17-18As shown, a large explosion-proof product detection device, unlike example 1, is also provided with an installation protection device near the cylinder flange 908. During the installation of the large explosion-proof product, the large explosion-proof product is lifted onto the workbench truck 12 by a forklift or a travelling crane and the like. The workbench truck 12 is relatively long and can simultaneously detect multiple large explosion-proof products. When multiple large explosion-proof products are installed, the workbench truck 12 is first pulled out to the outermost side, and then the first large explosion-proof product is installed at the inner end of the workbench truck 12. The large explosion-proof product is close to the support point and is thus stably supported. When the large explosion-proof product is moved to the predetermined position by the forklift or the travelling crane, collision is likely to occur due to the proximity to the cylinder flange 908. The installation protection device includes a stepped frame 1801 with a width of 500 mm. The stepped frame 1801 is built of angle steel. The saddle 6 is connected with a lateral rail 1805 which is perpendicular to the guide rail 7. The stepped frame 1801 is connected with the lateral rail 1805 through wheels 1808, so that the stepped frame 1801 can move along the lateral rail and thus approach or move away from the workbench truck 12. An upward lifting rod 1802 is installed on the stepped frame 1801. A warning device 1803 is installed on the upper end of the lifting rod 1802. The warning device 1803 can be a signboard or a warning light. The warning device 1803 provides a reference for the operator of the handling equipment, so that the handling equipment can be operated to carry the large explosion-proof product to the corresponding position of the workbench truck 12. After the first large explosion-proof product is placed, the walking drive motor 803 is actuated to move the workbench truck 12 inward, so that the first large explosion-proof product enters the cylinder 1. At the same time, the installation position of the workbench truck 12 corresponding to the second large explosion-proof product moves to the stepped frame 1801, and the second large explosion-proof product is carried and placed. The operation is repeated until all large explosion-proof products are placed. When the travelling crane is used to lift and carry the large explosion-proof product, the operator can stand on the stepped frame 1801 to adjust the angle of the large explosion-proof product, and then lower the large explosion-proof product onto the workbench truck 12. The walking drive motor 803 is actuated to move the workbench truck 12 inward again to the position where the head flange 901 is close to the stepped frame 1801. A proximity switch 1804 is installed on the side of the stepped frame 1801 facing the head flange 901. When the proximity switch 1804 is triggered, the walking drive motor 803 is controlled to stop actuating. Then the operator enters the cylinder from the stepped frame 1801 to connect the cable. During the connection of the cable, ventilation is required. A margin is left when the cable is connected to avoid the cable being pulled off when the workbench truck 12 moves. After the cable connection is completed, the operator leaves the cylinder, and then moves the stepped frame 1801 along the lateral rail. The walking drive motor 803 is actuated again to move the head flange 901 close to the cylinder flange 908 for sealing. When the proximity switch 1804 is in the triggered state, the walking drive motor 803 cannot actuate, thereby avoiding the danger of squeezing the stepped frame 1801.

[0027] In the embodiment, the inner stopper 1806 is installed on the lateral rail 1805, the ladder frame 1801 is limited at the inner stopper 1806, at this time, the ladder frame 1801 is close to the working trolley, the blocking rod 1807 is also installed on the lateral rail 1805, the blocking rod 1807 is across on the lateral rail 1805, and the movement of the ladder frame 1801 is limited, the blocking rod 1807 is connected with the mechanical lock, when the ladder frame 1801 is close to the working trolley, the backward movement of the ladder frame 1801 is prevented by the blocking rod 1807, the key of the mechanical lock is carried by the operator who enters the barrel 1, so that the mistaken operation of others is avoided, after the operation is completed, the mechanical lock is opened, the ladder frame 1801 is moved out, and then the blocking rod 1807 is locked, so that the inward movement of the ladder frame 1801 is avoided, through the double safety measures of the proximity switch 1804 and the mechanical lock, the safety can be ensured.

[0028] Finally, it should be noted that: the above only for the preferred embodiments of the application, and not for limiting the application, although the application is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still can modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the application, should be included in the protection scope of the application.

Claims

1. A large-scale explosion-proof product detection equipment, comprising a detection bin connected with a mobile sealing door, and an environment control device, The detection bin comprises an explosion-proof bin body; The mobile sealing door comprises an explosion-proof door body, and a sealing structure is arranged between the explosion-proof door body and the detection bin; The environment control structure comprises a pipe opening arranged on the explosion-proof bin body, and the pipe opening is connected to a gas tank system, The explosion-proof bin body is selected from explosion-proof tanks, and the explosion-proof tank comprises a cylinder body and a fixed end cover, the cylinder body is connected with a saddle, the mobile end cover comprises a mobile end cover, the mobile end cover is connected with an end cover support at the lower end, the end cover support is connected with a guide rail through a wheel set at the lower end, an outer support seat is connected to the inner wall of the mobile end cover at the lower end, the outer support seat comprises a plurality of vertical plates connected with the mobile end cover, a connecting vertical plate is connected to the inner end surface of each vertical plate, the workbench trolley comprises a transverse panel, a support rib plate is arranged on the lower end surface of the panel, the support rib plate has a plurality of support rib plates, the support rib plates are parallel to the length direction of the panel, a plurality of bottom plates are installed between the lower ends of the support rib plates, an inner connecting plate is connected between the inner end portions of the support rib plates, an outer connecting plate is connected between the outer end portions of the support rib plates, the inner connecting plate, the support rib plate and the outer connecting plate form a transverse framework, the panel is connected above the transverse framework, the outer connecting plate is connected with the connecting vertical plate, and then the workbench trolley is connected with the outer support seat, A walking wheel support frame is installed on both sides of the transverse framework, a plurality of groups of walking wheels are installed on the lower end of the walking wheel support frame, the distribution density of the walking wheels close to the inner end is greater than that of the walking wheels close to the outer end, a track matched with the walking wheels is welded and fixed on the inner wall of the cylinder body, the workbench trolley is supported by the inner end through a plurality of walking wheels, the outer end of the workbench trolley is supported by the outer support seat, in the test state, the workbench trolley is supported by the walking wheels, when the workbench trolley is pulled out with the mobile end cover, the inner end of the workbench trolley is supported by the walking wheels close to the inner end, and the outer end of the workbench trolley is supported by the outer support seat, and the large explosion-proof product to be detected can be placed.

2. The large-scale explosion-proof product detection device according to claim 1, characterized in that, The sealing structure comprises a cylinder flange fixed with the cylinder body, a head flange fixed with the movable head, a clamp installed between the cylinder flange and the head flange, a groove processed on the inner side of the clamp and matched with the cylinder flange and the head flange, a plurality of limiting teeth uniformly processed on the outer edge of the head flange, an opening processed on the clamp and matched with the limiting teeth, the limiting teeth capable of being inserted into the groove through the opening, a rotary driving device connected with the clamp, the rotary driving device comprising a driving lug fixed on the side of the clamp, a driving oil cylinder hinged with the driving lug on the saddle, an oil cylinder seat matched with the driving oil cylinder installed on the saddle, the lower end of the driving oil cylinder hinged with the oil cylinder seat, the two driving oil cylinders capable of providing upward thrust in turn and driving the clamp to rotate, a sealing ring accommodating groove processed on the cylinder flange, a sealing ring installed in the sealing ring accommodating groove, the sealing ring being an annular air bag, the outer end of the sealing ring accommodating groove being in rectangular cross section, the annular air bag being clamped in the sealing ring accommodating groove in normal state, the annular air bag not exceeding the sealing ring accommodating groove to avoid friction with the head flange, a gas pipe insertion hole corresponding to the sealing ring accommodating groove processed on the cylinder flange, the annular air bag connected with a gas pipe, the gas pipe extending to the outside of the cylinder flange through the gas pipe insertion hole and connected with a high-pressure gas source, the annular air bag inflated after the rotation of the clamp is completed, and sealing is realized.

3. The large-scale explosion-proof product inspection apparatus according to claim 2, characterized by A wedge-shaped wear-resistant block is welded and fixed on the outer side of the limiting teeth, one side of the wedge-shaped wear-resistant block towards the rotating direction of the clamp being a thin-walled side, the head flange approaching the cylinder flange and being pressed against the cylinder flange in the process of rotation of the clamp under the action of the wedge-shaped wear-resistant block.

4. The large-scale explosion-proof product detection device according to claim 3, characterized in that, Support rollers are further installed on the saddle on both sides of the clamp, the clamp being supported by the support rollers, a pushing structure for laterally pushing the clamp is further installed on the cylinder, the pushing structure comprising a pushing seat installed on the upper end of the cylinder, a pushing rod installed on the pushing seat, a pushing head matched with the clamp installed at the end of the pushing rod, and the pushing head matched with the clamp through a ball.

5. The large-scale explosion-proof product inspection apparatus according to claim 2, wherein An auxiliary starting device for starting the movement of the movable head is further arranged on the saddle, the auxiliary starting device comprising a pushing oil cylinder fixed on the saddle, a guide head matched with the wheel set installed at the end of the piston rod of the pushing oil cylinder, the guide head being conical, a conical guide groove matched with the guide head processed on the wheel set, the guide head inserted into the guide groove when the wheel set drives the movable head to approach the cylinder flange, the wheel set guided, the head flange on the upper side of the wheel set opposite to the cylinder flange, the pushing oil cylinder buffered, the wheel set started to move when the wheel set drives the movable head to move away from the cylinder flange, and the walking driving motor then actuated, so that the starting power of the walking driving motor is reduced.

6. The large-scale product explosion prevention testing apparatus according to claim 1, wherein The barrel is connected with a pressure relief structure, the pressure relief structure comprises a pressure relief flange matched with the pipe opening, a deformation plate mounting groove is formed at the lower end of the pressure relief flange, a deformation plate is mounted in the deformation plate mounting groove, the deformation plate is sealingly connected with the bottom of the deformation plate mounting groove, the pressure relief flange is connected with a pressure relief pipe, the pressure relief pipe comprises a reducing pipe connected with the pressure relief flange, the inner diameter of the reducing pipe gradually increases from inside to outside, the outer end of the reducing pipe is connected with a buffer pipe, a blocking cap is mounted at the outer end of the buffer pipe, pressure relief holes are formed on the reducing pipe, the buffer pipe and the blocking cap, the pressure relief holes are arranged in rows and columns, in the process of pressure relief, the pressure in the barrel increases and deforms the deformation plate, the deformed deformation plate moves into the pressure relief pipe, air in the pressure relief pipe forms a buffer, and the gas is discharged through the pressure relief holes to relieve pressure, the blocking cap and the deformed pipe and the buffer pipe form a pressure relief cavity, the minimum inner diameter of the reducing pipe is smaller than the inner diameter of the deformation plate, the deformation plate restores its shape in the buffer pipe, and after pressure relief through the pressure relief structure, the barrel is connected with the outside.

7. The large-scale product explosion prevention testing apparatus according to claim 1, wherein The barrel is also connected with a cable mounting device, the cable mounting device comprises a plurality of cable jacks distributed along the length direction of the barrel, cables are inserted and mounted in the cable jacks, a communication joint is welded and fixed at the outer end of the cable jack, a sealing gasket and a compression nut are mounted through the communication joint, which are used for fixing the cables, a plurality of power cables are mounted through the plurality of cable jacks, one cable jack is inserted and mounted with one single-core cable, which corresponds to one phase of power supply, a cable hanging structure is also mounted in the barrel, the cable hanging structure comprises a plurality of cable hooks mounted on the top of the barrel, the cable hooks are distributed along the length direction of the barrel, and the single-core cables are hung separately, and the bending allowance of the cables during hanging is used to adapt to the wiring positions of different large-sized explosion-proof products to be detected.

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