Intelligent integrated explosion-proof cabinet air conditioner

Abstract

The application relates to an intelligent integrated explosion-proof cabinet air conditioner, which comprises a shell arranged on the outside of a cabinet, a heat insulation plate arranged in the shell and separating the internal space into an outer circulation cavity and an inner circulation cavity, a collecting cavity arranged on the shell, a transparent collecting box arranged in the collecting cavity, a condensate water inlet arranged above the transparent collecting box, and a condensate water drainage device arranged between a drainage port and the condensate water inlet and used for connecting the drainage port and the condensate water inlet when the transparent collecting box is inserted into the collecting cavity and used for sealing the drainage port and the condensate water inlet when the transparent collecting box is pulled out. The intelligent integrated explosion-proof cabinet air conditioner can avoid the inflow of flammable and explosive gas into the cabinet and improve safety.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of explosion-proof equipment, in particular to an intelligent integrated explosion-proof cabinet air conditioner. BACKGROUND

[0002] The explosion-proof air conditioner is mainly used in the explosion-proof distribution cabinet (control cabinet) with large heat generating and temperature sensitive electrical components (such as high-power frequency converters) in the environment containing explosive such as petroleum, chemical industry, natural gas, etc. to solve the problem of cabinet cooling to meet the normal use of electrical components.

[0003] The traditional explosion-proof air conditioner includes an indoor unit and an outdoor unit. Due to the bulky size, the explosion-proof distribution cabinet occupies a large space. Therefore, an integrated explosion-proof air conditioner is developed, which integrates the indoor unit and the outdoor unit and is mounted on the outside of the outdoor unit. The internal space is saved, and the overall structure is more compact. The explosion-proof air conditioner includes an outer shell mounted on the outside of the cabinet. A heat insulation plate is arranged in the outer shell to divide the internal space into an outer circulation cavity and an inner circulation cavity. The outer circulation cavity is provided with an outdoor air inlet, an outdoor air outlet and an outer circulation fan for guiding the outdoor air to flow from the outdoor air inlet to the outdoor air outlet. The outer circulation cavity is further provided with a compressor and an evaporator in sequence along the flow direction of the outdoor air. The inner circulation cavity is provided with an inner air inlet, an inner air outlet and an inner circulation fan for guiding the inner air to flow from the inner air inlet to the inner air outlet. The inner circulation cavity is provided with a condenser.

[0004] As known, condensate water is generated during the process of cooling the air in the cabinet. The condensate water is accumulated in the inner circulation cavity. Too much condensate water will affect the normal operation of the explosion-proof air conditioner. Therefore, a condensate water drain pipe is arranged at the heat insulation plate at the bottom of the inner circulation cavity. The lower end of the condensate water drain pipe is provided with a drain port. However, in the environment containing explosive such as petroleum, chemical industry, natural gas, etc., the flammable and explosive gas will be sucked into the cabinet from the condensate water drain pipe due to the negative pressure generated by the inner circulation fan, which may cause danger. The end of the condensate water drain pipe is provided with a closed cavity or a one-way valve, which may cause the condensate water to flow back and cause failure. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application aims to provide an intelligent integrated explosion-proof cabinet air conditioner which can avoid the flammable and explosive gas entering the cabinet and causing danger and improve safety.

[0006] In order to achieve the above object, the present application provides the following technical scheme: the shell is arranged outside the cabinet, the inner space is divided into the outer circulation cavity and the inner circulation cavity by the heat insulation plate arranged in the shell, the outer circulation cavity is arranged with the outdoor air inlet, the outdoor air outlet and the outer circulation fan for guiding the outdoor air to flow from the outdoor air inlet to the outdoor air outlet, the compressor and the evaporator are sequentially arranged in the outer circulation cavity along the flow direction of the outdoor air, the inner circulation cavity is arranged with the indoor air inlet, the indoor air outlet and the inner circulation fan for guiding the indoor air to flow from the indoor air inlet to the indoor air outlet, the inner circulation cavity is arranged with the condenser, the heat insulation plate arranged at the bottom of the inner circulation cavity is arranged with the condensate water drainage pipe, the lower end of the condensate water drainage pipe is arranged with the drainage port, and the shell is arranged with the collection cavity, the transparent collection box is arranged in the collection cavity, the upper portion of the transparent collection box is arranged with the condensate water inlet, and the condensate water drainage device is arranged between the drainage port and the condensate water inlet.

[0007] By adopting the above technical scheme, the transparent collection box and the condensate water drainage pipe of the shell are arranged in a split mode, the transparent collection box is replaced when it is about to be filled, in the replacement process, the condensate water drainage device is matched to isolate the connection between the outside and the condensate water drainage pipe, the flammable and explosive gas is prevented from entering the cabinet to cause danger, the condensate water reverse flow is prevented from causing failure, the safety is improved, the stable operation of the equipment is ensured, the condensate water in the transparent collection box is prevented from pouring out from the condensate water inlet to the outside after the transparent collection box is pulled out, and the possibility of the condensate water pollution of the environment or the influence on the control cabinet from the outside is reduced.

[0008] The present application is further provided as follows: the condensate water drainage device comprises a lifting platform and a water inlet cover, the lifting platform is vertically moved in the collection cavity and is arranged with a lifting mechanism for driving the lifting platform to lift, the transparent collection box is placed on the lifting platform, the transparent collection box is arranged with a mounting ring around the condensate water inlet outside, the water inlet cover comprises a connecting ring matched with the outer periphery of the upper end of the mounting ring in a threaded mode, the upper end of the connecting ring is arranged with a cover, the middle portion of the cover is arranged with a guide column, the guide column is arranged with a communication hole communicated with the inside of the transparent collection box, the outer periphery of the guide column close to the top is arranged with a plurality of communication ports communicated with the communication hole in a circumferential mode, the outer periphery of the guide column is arranged with a sealing piston for closing the communication ports in a sliding mode, the cover and the sealing piston are arranged with a return spring for returning the sealing piston upward, the upper end of the collection cavity is arranged with a positioning groove communicated with the condensate water drainage pipe, the water inlet cover enters the positioning groove when the transparent collection box rises with the lifting platform, the sealing piston is pressed downward by the upper groove wall of the positioning groove, and the communication ports are communicated with the condensate water drainage pipe.

[0009] By adopting the technical scheme, the transparent collecting box is arranged in the collecting cavity and on the lifting platform, and when the lifting mechanism drives the lifting platform to ascend, the transparent collecting box also ascends, in the ascending process, the sealing piston is pressed downward by the wall of the alignment groove, and the communication opening is communicated with the condensate water drain pipe; conversely, when the transparent collecting box needs to be taken out, the lifting mechanism drives the lifting platform to descend, the sealing piston is reset upward until the communication opening is closed, and splashing to the outside is avoided, in addition, the alignment groove and the piston can also form the locking of the collecting cavity to the transparent collecting box, mispulling out is avoided, and practicability is improved.

[0010] The application is further provided that: the outer periphery of the sealing piston is provided with a stress platform extending to the outside, the stress platform is provided with a protection ring surrounding the connecting ring and extending downward, and the reset spring is circumferentially located between the sealing piston and the protection ring and is vertically compressed between the stress platform and the cover.

[0011] By adopting the technical scheme, the outer side wall of the sealing piston and the inner side wall of the protection ring form the limiting space of the reset spring, and the internal space of the protection ring forms the protection space of the reset spring, so that the reset spring is stably installed and foreign matters are prevented from entering, and stability is ensured.

[0012] The application is further provided that: the outer periphery of the guiding column is provided with a plurality of vertically extending linkage protrusions at equal intervals in the circumferential direction, and the inner periphery of the sealing piston is provided with linkage depressions corresponding to the linkage protrusions and vertically slidingly matched with the linkage protrusions.

[0013] By adopting the technical scheme, the linkage protrusions are matched with the linkage depressions, the relative vertical movement of the sealing piston relative to the guiding column is ensured, and the rotation of the sealing piston can drive the base to rotate, so that the base can be screwed into or out of the mounting ring, and the operation is more convenient.

[0014] The application is further provided that: the lower end of the condensate water drain pipe is provided with an expansion section with a larger diameter, the condensate water drain pipe is provided with a sealing platform at the drain port, the middle part of the sealing platform is provided with a through hole for inserting the guiding column, the sealing platform is provided with a hinge shaft above and a sealing plate mounted on the hinge shaft, and the hinge shaft is provided with a sealing torsional spring for resetting the sealing plate to the through hole and sealing the through hole by the sealing plate.

[0015] By adopting the technical scheme, the sealing plate of the sealing platform is opened when the guiding column is inserted and is closed when the guiding column is pulled out, the synchronous cutting and opening of the condensate water drain pipe and the transparent collecting box are realized, the on-off of the condensate water drain pipe is reasonably controlled by the action of the guiding column, and the structure is more simplified.

[0016] The lifting mechanism comprises a plurality of air cylinders, each of the air cylinders comprises a cylinder body and an air cylinder shaft, a fixed disc is arranged on the upper end of the cylinder body and fixed to the bottom of the shell through bolts, a slot is arranged below the lifting platform for inserting the air cylinder shaft, and an adjusting spring is arranged in compression between the upper end of the air cylinder shaft and the slot.

[0017] By adopting the above technical scheme, the plurality of air cylinders stably lift or drop the lifting platform, linkage between the air cylinder shaft and the lifting platform is formed by insertion and fitting, assembly is more convenient, the air cylinders are detached from the shell during transportation to avoid affecting stable placement of the shell, the convenient detachable structure also improves transportation convenience, in addition, the adjusting spring is arranged in compression in the slot, on the one hand, the adjusting spring reduces the force of the transparent collection tank after abutting against the collection cavity, and on the other hand, the adjusting spring balances the small height difference of the air cylinder shafts of different air cylinders, and prevents the lifting platform from being stuck during lifting.

[0018] The upper end of the guide column is provided with a limiting skirt, and the upper end of the sealing piston is provided with a limiting groove abutting against the limiting skirt around the guide column.

[0019] By adopting the above technical scheme, the limiting skirt cooperates with the limiting groove, so that the sealing piston can be stably kept at the highest position (sealing position), and the transparent collection tank is less likely to leak condensed water during movement.

[0020] The upper end surface of the heat insulation plate gradually decreases in height in a direction close to the condensed water drainage pipe around the part of the condensed water drainage pipe.

[0021] By adopting the above technical scheme, the upper end surface of the hopper-shaped heat insulation plate quickly collects condensed water by gravity, and avoids that water droplets are introduced into the room by excessive airflow, causing a fault.

[0022] The condensed water drainage pipe is partially in an S-shaped structure.

[0023] By adopting the above technical scheme, the S-shaped structure can further avoid the possibility of backflow of dangerous gas, and ensure stable operation of the equipment. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 FIG. 1 is a schematic view of a cabinet with a control cabinet on which an intelligent integrated explosion-proof cabinet air conditioner is installed;

[0025] Figure 2 FIG. 5 is an exploded view of the intelligent integrated explosion-proof cabinet air conditioner;

[0026] Figure 3 FIG. 6 is a sectional view of the intelligent integrated explosion-proof cabinet air conditioner in state one;

[0027] Figure 4 is Figure 3 enlarged view of middle A;

[0028] Figure 5 is Figure 4 enlarged view of middle B;

[0029] Figure 6 is a sectional view of the intelligent integrated explosion-proof cabinet air conditioner in state two;

[0030] Figure 7 is Figure 6 enlarged view of middle C;

[0031] Figure 8 is Figure 7 enlarged view of middle D;

[0032] Figure 9 is a perspective view of the transparent collection box;

[0033] Figure 10 is a perspective view of the connecting ring;

[0034] Figure 11 is a perspective view of the sealing piston Figure 1 ;

[0035] Figure 12 is a perspective view of the sealing piston Figure 2 . DETAILED DESCRIPTION

[0036] The technical solutions of the present application will be described clearly and completely below in conjunction with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the orientation or positional relationship shown in the drawings, and are only for the purpose of facilitating the description of the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0038] As Figure 1 — Figure 12As shown, the present application discloses a kind of intelligent integrated explosion-proof cabinet air conditioner, cooperate the structure of the cabinet a of control cabinet, including the shell 1 of side installation in the outside of cabinet a, the controller 7 of being provided with on shell 1 upper end, heat insulation plate 13 is provided with in shell 1 and inside space is divided into outer circulation cavity 11 and inner circulation cavity 12, outer circulation cavity 11 is located away from cabinet a and is provided with outdoor air inlet 111, outdoor air outlet 112 and the outer circulation fan 113 of guiding outdoor air from outdoor air inlet 111 to outdoor air outlet 112 flow, outer circulation cavity 11 is also sequentially provided with compressor 114 and evaporator 115 along the direction of outdoor air flow, inner circulation cavity 12 is located towards cabinet a and is provided with cabinet air inlet 121, cabinet air outlet 122 and the inner circulation fan 123 of guiding cabinet air from cabinet air inlet 121 to cabinet air outlet 122 flow, inner circulation cavity 12 is provided with condenser 124, heat insulation plate 13 at the bottom of inner circulation cavity 12 is provided with condensate water drain pipe 2, the lower end of condensate water drain pipe 2 is provided with drain 21, shell 1 is provided with collection recess 3, transparent collection tank 4 is provided in collection recess 3, transparent collection tank 4 is provided with handle 41 of pulling and pushing transparent collection tank 4, condensate water inlet 42 is provided above transparent collection tank 4, drain 21 and condensate water inlet 42 are provided with condensate water drainage device when transparent collection tank 4 is inserted into collection recess 3, which is communicated with drain 21 and condensate water inlet 42, when pulling out transparent collection tank 4, drain 21 and condensate water inlet 42 are closed, transparent collection tank 4 and condensate water drain pipe 2 of shell 1 are provided separately, when transparent collection tank 4 is about to be collected full, it is replaced, in the process of replacement, cooperate condensate water drainage device, isolate the communication of outside and condensate water drain pipe 2, avoid flammable and explosive gas into cabinet a to cause danger at the same time avoid condensate water backflow to cause failure, improve safety at the same time ensure that equipment stable operation, also can avoid that the condensate water in transparent collection tank 4 is poured to outside from condensate water inlet 42 after pulling out transparent collection tank 4, reduce the possibility of condensate water pollution environment or from outside influence control cabinet.

[0039] The condensate water drainage device comprises a lifting platform 5 vertically moving in the collection cavity 3 and provided with a lifting mechanism driving the lifting platform 5 to lift, a transparent collection box 4 placed on the lifting platform 5, an installation ring 43 provided outside the transparent collection box 4 and surrounding the condensate water inlet 42, and a water inlet cover 6 comprising a connecting ring 61 threadedly matched with the outer periphery of the upper end of the installation ring 43, the upper end of the connecting ring 61 being provided with a cover 62, the cover 62 being provided with a guide column 63 in the middle, the guide column 63 being provided with a communication hole 631 communicating with the inside of the transparent collection box 4, the outer periphery of the guide column 63 being provided with a plurality of communication openings 632 communicating with the communication hole 631 in the circumferential direction close to the top, the outer periphery of the guide column 63 being provided with a sealing piston 64 closing the communication openings 632, a return spring 65 being provided between the cover and the sealing piston 64 and returning the sealing piston 64 upward, the upper end of the collection cavity 3 being provided with a positioning groove 31 communicating with the condensate water drainage pipe 2, the water inlet cover 6 entering the positioning groove 31 when the transparent collection box 4 rises with the lifting platform 5, the sealing piston 64 being pressed downward by the upper groove wall of the positioning groove 31 to make the communication openings 632 communicate with the condensate water drainage pipe 2, the transparent collection box 4 being placed in the collection cavity 3 and on the lifting platform 5, the transparent collection box 4 also rising when the lifting platform 5 rises driven by the lifting mechanism, the sealing piston 64 being pressed downward by the upper groove wall of the positioning groove 31 to make the communication openings 632 communicate with the condensate water drainage pipe 2 during the rising process, and vice versa, the transparent collection box 4 being taken out when the lifting platform 5 is lowered driven by the lifting mechanism, the sealing piston 64 returning upward until the communication openings 632 are closed, and not splashing outside, in addition, the positioning groove 31 and the piston can also form the locking of the collection cavity 3 to the transparent collection box 4 to avoid being pulled out by mistake and improve the practicability.

[0040] The outer periphery of the sealing piston 64 is provided with a stress platform 641 extending to the outside, the stress platform 641 being provided with a protection ring 642 surrounding the connecting ring 61 extending downward, the return spring 65 being circumferentially located between the sealing piston 64 and the protection ring 642 and vertically compressed between the stress platform 641 and the cover 62, the outer side wall of the sealing piston 64 and the inner side wall of the protection ring 642 forming the limiting space of the return spring 65, and the inner space of the protection ring 642 forming the protection space of the return spring 65, so that the return spring 65 is stably installed and foreign matters are prevented from entering to ensure the stable extension and contraction.

[0041] The outer periphery of the guide column 63 is provided with a plurality of vertically extending linkage protrusions 633 at equal intervals in the circumferential direction, and the inner periphery of the sealing piston 64 is provided with linkage recesses 643 corresponding to the linkage protrusions 633 and vertically slidingly matched with the linkage protrusions 633. The linkage protrusions 633 cooperate with the linkage recesses 643 to ensure that the sealing piston 64 moves vertically relative to the guide column 63 while rotating the sealing piston 64, which can drive the base to rotate, so that the base can be screwed into or out of the mounting ring 43, and the operation is more convenient. In order to ensure the sealing, the part between the linkage recesses 643 of the sealing piston 64 is made of rubber material with certain elasticity.

[0042] The lower end of the condensate drain pipe 2 is provided with an expansion section 22 with a larger diameter, and the condensate drain pipe 2 is provided with a sealing platform 23 at the drain port 21. The middle of the sealing platform 23 is provided with a through hole 231 for inserting the guide column 63. The upper part of the sealing platform 23 is provided with a hinge shaft 232 and a sealing plate 233 mounted on the hinge shaft 232. The hinge shaft 232 is provided with a sealing torsional spring 234 for resetting the sealing plate 233 to the through hole 231 and sealing the through hole 231 by the sealing plate 233. The sealing plate 233 of the sealing platform 23 is opened when the guide column 63 is inserted and closed when it is pulled out, realizing the synchronous cutting and opening of the condensate drain pipe 2 and the transparent collection tank 4. The structure is more simplified by reasonably utilizing the guide column 63 to control the on-off of the condensate drain pipe 2.

[0043] The lifting mechanism includes a plurality of cylinders 6, each cylinder 6 including a cylinder body 61 and a cylinder shaft 62. The upper end of the cylinder body 61 is provided with a fixed disc 611 fixed to the bottom of the shell 1 by bolts. The lower part of the lifting platform 5 is provided with a slot 51 for inserting the cylinder shaft 62. The upper end of the cylinder shaft 62 and the slot 51 are compressed to set an adjusting spring 52. The plurality of cylinders 6 stably lift or drop the lifting platform 5. The cylinder shaft 62 and the lifting platform 5 are linked by insertion, making assembly more convenient. In order to avoid the influence of the cylinder 6 on the stable placement of the shell 1 during transportation, the cylinder 6 needs to be disassembled from the shell 1 first. The convenient disassembly structure also improves the transportation convenience. In addition, the adjusting spring 52 is compressed in the slot 51. On the one hand, it reduces the force of the transparent collection tank 4 after it abuts against the collection cavity 3. On the other hand, it balances the small height difference of the cylinder shafts 62 of different cylinders 6, avoiding the lifting platform 5 from being stuck.

[0044] The outer periphery of the upper end of the guide column 63 is provided with a limiting skirt 634, and the upper end of the sealing piston 64 is provided with a limiting recess 644 around the guide column 63 and abutting against the limiting skirt 634. The limiting skirt 634 cooperates with the limiting recess 644 to stably keep the sealing piston 64 at the highest position (sealing position), so that the transparent collection tank 4 is less likely to leak condensate water when moving.

[0045] The upper end surface of the heat insulation plate 13 gradually decreases in height in the direction close to the condensate drain pipe 2, and the upper end surface of the hopper-shaped heat insulation plate 13 quickly collects and gathers the condensate by gravity, thereby avoiding the introduction of water droplets into the room by excessive airflow, which may cause a fault.

[0046] The condensate drain pipe 2 is partially provided with an S-shaped structure 24, which can further avoid the possibility of backflow of dangerous gas and ensure stable operation of the equipment.

[0047] When the transparent collecting box 4 needs to be replaced due to being close to full, the operating button 71 located on the collecting cavity 3 is pressed, and the lifting platform 5 stably descends under the action of the transparent collecting box 4 and the air cylinder 6 until the sealing piston 64 is separated from the positioning groove 31. During the descending process, the sealing piston 64 is reset to the sealing position of the sealing communication port 632 (as shown in Figure 5 The transparent collecting box 4 can be pulled out of the collecting cavity 3 through the handle 41, and at the same time, the sealing plate 233 closes the drain port 21 under the action of the sealing torsional spring 234, that is, the double cutting of the transparent collecting box 4 and the condensate drain pipe 2 is automatically realized, and the position locking of the transparent collecting box 4 is also released. After the transparent collecting box 4 reaches the dumping site, the connecting ring 61 can be rotated out of the mounting ring 43 by rotating the sealing piston 64, and the transparent collecting box 4 can be quickly dumped. After the pulling-out step is completed, the empty transparent collecting box 4 is inserted into the collecting cavity 3, the operating button 71 located on the collecting cavity 3 is pressed, and the lifting platform 5 stably rises under the action of the transparent collecting box 4 and the air cylinder 6. During the rising process, the sealing piston 64 is pressed and lowered by the groove wall of the positioning groove 31, and at the same time, the guide column 63 pushes open the sealing plate 233, and the sealing piston 64 reaches the flow-through state (as shown in Figure 8 The arrow represents the condensate flow path), that is, the communication between the transparent collecting box 4 and the condensate drain pipe 2 is automatically restored.

Claims

1. An intelligent integrated explosion-proof cabinet air conditioner, comprising a shell mounted on the outside of a cabinet, wherein a heat insulation plate is provided inside the shell to divide the internal space into an external circulation chamber and an internal circulation chamber, wherein the external circulation chamber is located facing away from the cabinet and has an outdoor air inlet, an outdoor air outlet, and an external circulation fan guiding outdoor air from the outdoor air inlet to the outdoor air outlet, and a compressor and an evaporator are also arranged sequentially in the external circulation chamber along the direction of outdoor air flow; the internal circulation chamber is located facing the cabinet and has an internal air inlet, an internal air outlet, and an internal circulation fan guiding internal air from the internal air inlet to the internal air outlet, wherein a condenser is provided in the internal circulation chamber, and a condensate drain pipe is provided on the heat insulation plate at the bottom of the internal circulation chamber, wherein a drain outlet is provided at the lower end of the condensate drain pipe, characterized in that: The outer shell is provided with a collection cavity, and a transparent collection box is arranged inside the collection cavity. A condensate inlet is provided above the transparent collection box. A condensate drainage device is provided between the drain outlet and the condensate inlet, which connects the drain outlet and the condensate inlet when the transparent collection box is inserted into the collection cavity and closes the drain outlet and the condensate inlet when the transparent collection box is pulled out. The condensate drainage device includes a lifting platform and a water inlet cover. The lifting platform moves vertically within the collection cavity and is provided with a lifting mechanism to drive the lifting platform to rise and fall. The transparent collection box is placed on the lifting platform. An installation ring is provided around the condensate inlet on the outside of the transparent collection box. The water inlet cover includes a connecting ring that is threaded to the upper outer circumference of the installation ring. A cap is provided at the upper end of the connecting ring. A guide post is provided in the middle of the cap. A connecting hole is provided inside the guide post that communicates with the inside of the transparent collection box. The guide post has multiple connecting ports along its outer periphery near the top, which are connected to the connecting holes. A sealing piston is slidably mounted on the outer periphery of the guide post to close the connecting ports. A return spring is provided between the cover and the sealing piston to return the sealing piston upward. An alignment groove is provided at the upper end of the collection cavity to connect with the condensate drain pipe. When the transparent collection box rises with the lifting platform, the water inlet cover enters the alignment groove. The sealing piston is squeezed downward by the upper wall of the alignment groove, so that the connecting port connects with the condensate drain pipe. The lower end of the condensate drain pipe has an expansion section with a larger diameter. A sealing platform is provided at the drain outlet of the condensate drain pipe. A through hole for the guide post to be inserted is provided in the middle of the sealing platform. A hinge shaft and a sealing plate installed on the hinge shaft are provided above the sealing platform. A sealing torsion spring is provided on the hinge shaft to reset the sealing plate to the through hole and seal the through hole with the sealing plate.

2. The intelligent integrated explosion-proof cabinet air conditioner according to claim 1, characterized in that: The sealing piston has an outwardly extending force-bearing platform on its outer periphery, and a protective ring that surrounds the connecting ring extends downward from the force-bearing platform. The return spring is circumferentially located between the sealing piston and the protective ring and is vertically compressed between the force-bearing platform and the cover.

3. The intelligent integrated explosion-proof cabinet air conditioner according to claim 1, characterized in that: The guide post has multiple vertically extending linkage grooves equidistantly arranged along its outer periphery. The inner periphery of the sealing piston has linkage protrusions corresponding to the linkage grooves. A limiting block is provided at the upper end of the linkage groove to prevent the linkage protrusions from moving upward.

4. The intelligent integrated explosion-proof cabinet air conditioner according to claim 1, characterized in that: The lifting mechanism includes multiple cylinders, each cylinder including a cylinder body and a cylinder shaft. The upper end of the cylinder body is provided with a fixing plate fixed to the bottom of the outer casing by bolts. The lower part of the lifting platform is provided with a slot for the cylinder shaft to be inserted. An adjusting spring is compressed between the upper end of the cylinder shaft and the slot.

5. The intelligent integrated explosion-proof cabinet air conditioner according to claim 1, characterized in that: The guide post has a limiting skirt on its upper outer periphery, and the sealing piston has a limiting groove around the guide post that abuts against the limiting skirt.

6. The intelligent integrated explosion-proof cabinet air conditioner according to claim 1, characterized in that: The upper surface of the heat insulation board surrounding the condensate drain pipe gradually decreases in height along the direction closer to the condensate drain pipe.

7. The intelligent integrated explosion-proof cabinet air conditioner according to claim 1, characterized in that: The condensate drain pipe has a partial S-bend structure.

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