Movable emergency power supply prefabricated cabin

Abstract

The invention discloses a movable emergency power supply prefabricated cabin, relates to the technical field of power supply prefabricated cabins, and solves the technical problem that the service life of the prefabricated cabin is affected due to the fact that gaps between the bottom and adjacent battery modules cannot be fully cooled. Comprising a power supply prefabricated cabin body, and an energy storage battery module is arranged on the inner wall of the power supply prefabricated cabin body; the bottom cooling structure is mounted in the power supply prefabricated cabin body and dissipates heat upwards from the lower part of the energy storage battery module; the bottom of a cabin body of the power supply prefabricated cabin can be fully filled, low-temperature air is exhausted upwards from the bottom to act on the surfaces of the energy storage battery modules according to the sizes and distribution positions of the energy storage battery modules, the low-temperature air enters gaps at the splicing positions of the energy storage battery modules from bottom to top, the heat dissipation and cooling effects of the energy storage battery modules are improved, and the service life of the energy storage battery modules is prolonged. And the influence of high temperature on the service life of the energy storage battery module is reduced.

Description

Technical Field

[0001] The invention belongs to the technical field of prefabricated power supply cabins, and in particular is a mobile emergency power supply prefabricated cabin. Background Art

[0002] The emergency power supply prefabricated cabin is an integrated energy storage device that integrates energy storage systems, battery management systems, energy conversion systems and other equipment. It usually looks like a large container, and contains multiple battery modules, cooling systems, fire protection systems, etc. It has the characteristics of high efficiency, safety, flexibility and mobility. The working principle of the emergency power supply prefabricated cabin is mainly to store and release electrical energy through battery modules.

[0003] The heat dissipation of some existing prefabricated cabins is usually located at high places, while the inner wall of the prefabricated cabin near the bottom and the gaps between adjacent battery modules cannot be fully dissipated and cooled. The temperature generated by the operation of the prefabricated cabin may accelerate the aging of the battery module, thereby affecting the service life of the prefabricated cabin. Summary of the invention

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art; to this end, the present invention proposes a mobile emergency power supply prefabricated cabin.

[0005] A mobile emergency power supply prefabricated cabin, comprising:

[0006] A power supply prefabricated cabin body, wherein the inner wall of the power supply prefabricated cabin body is provided with an energy storage battery module;

[0007] A bottom cooling structure installed inside the power supply prefabricated cabin body and dissipating heat from the bottom of the energy storage battery module upward, the bottom cooling structure includes a vertical cooling component installed at the rear end of the power supply prefabricated cabin body to suck and cool the outside air, two bottom cooling components installed below the vertical cooling component in an L shape, and an auxiliary cooling component for assisting the cooling of the gas entering the bottom cooling component;

[0008] The vertical cooling component comprises a vertical ventilation channel embedded and installed on the inner wall of the power supply prefabricated cabin, and an evaporator for cooling air is arranged inside the vertical ventilation channel.

[0009] Preferably, the vertical cooling component further comprises ventilation holes opened on the front surface, and a lateral fan is arranged on the rear surface of the vertical ventilation channel, and the lateral fan is located at the rear side of the evaporator.

[0010] Preferably, the bottom cooling member for cooling the bottom of the energy storage battery module upwards comprises:

[0011] A bottom ventilation channel is respectively installed on the front and rear surfaces of the lower end of the vertical ventilation channel, and the other end of the bottom ventilation channel extends to below the front end of the energy storage battery module;

[0012] A bottom fan vertically installed at the rear end of the bottom ventilation channel where it communicates with the vertical ventilation channel;

[0013] And a plurality of air outlet channels are opened along the length direction of the bottom ventilation channel.

[0014] Preferably, the auxiliary cooling component for collecting the liquid condensed in the vertical ventilation channel comprises:

[0015] A gathering bottom box is horizontally located at the bottom of the vertical ventilation channel, and two circulation pumps are arranged on the front surface of the gathering bottom box;

[0016] A plurality of fiber ice curtains are vertically installed inside the bottom ventilation channel, the front end of the circulation pump is connected to a distribution pipe located inside the bottom ventilation channel, and a connecting pipe is arranged between the distribution pipe and the fiber ice curtain.

[0017] Preferably, a water extraction pipe is provided between the circulation pump and the water extraction pipe, and a water collecting hopper installed on the outside of the power supply prefabricated cabin body is provided on the rear surface of the vertical ventilation channel.

[0018] Preferably, the adsorption member located on the front surface of the ventilation hole includes:

[0019] Two annular frames are installed in a front and rear manner, a circular hollow net is arranged inside the annular frames, the annular frame on the rear side fits the front surface of the vertical ventilation channel, and arc-shaped sliding holes are opened on the surfaces of the two annular frames;

[0020] A fixing rod fixed on the surface of the vertical ventilation channel and passing through two arc-shaped sliding holes and exposed outside;

[0021] And a limiting ring which is screwed and sleeved on the free end of the fixing rod.

[0022] Preferably, a drying component for drying the exhausted gas is installed on the upper surface of the bottom ventilation channel, and the drying component includes:

[0023] A shielding frame located above the air outlet channel, with guide rails provided at both ends of the shielding frame;

[0024] A telescopic cylinder is installed on the upper surface of the bottom ventilation channel and located inside the shielding frame, and a piston rod arranged inside the telescopic cylinder is connected to the shielding frame.

[0025] Preferably, a fixed guide sleeve is provided on the upper surface of the bottom ventilation channel and is located outside the guide rail, and the fixed guide sleeve is slidably connected to the guide rail.

[0026] Preferably, an inspection door is provided on the front surface of the prefabricated power supply cabin body, and a heat dissipation hole is provided on the top of the inspection door.

[0027] Preferably, the inner wall of the vertical ventilation channel is provided with a plurality of support frames for supporting the evaporator.

[0028] Compared with the prior art, the present invention has the following beneficial effects:

[0029] (1) The present invention can fully fill the bottom of the power supply prefabricated cabin, and according to the size and distribution position of the energy storage battery module, discharge low-temperature air from the bottom to the surface of the energy storage battery module, and allow the low-temperature air to enter the gap at the joint of the energy storage battery module from the bottom to the top, thereby improving the heat dissipation and cooling effect of the energy storage battery module, placing it in a suitable temperature use environment, and reducing the impact of high temperature on the life of the energy storage battery module.

[0030] (2) The present invention can fully absorb the low-temperature air entering the power supply prefabricated cabin through the designed adsorption component, so that the air entering the cabin is dry without additionally increasing the humidity inside the cabin. The low-temperature dry air entering the cabin is convenient for fully cooling and dissipating the heat of the energy storage battery module.

[0031] (3) The present invention has a drying component designed so that when the drying component directly blocks the air outlet passage, the air passing through the air outlet passage can be ensured to be dry, thereby keeping the interior of the power supply prefabricated cabin dry. When the drying component does not block the air outlet passage, the discharged low-temperature air contains a slight mist, thereby maintaining the humidity inside the cabin. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 This is a structural schematic diagram of the mobile emergency power supply prefabricated cabin of the present invention;

[0033] Figure 2 This is a schematic diagram of the internal structure of the mobile emergency power supply prefabricated cabin of the present invention;

[0034] Figure 3 It is a structural schematic diagram of the bottom cooling structure of the present invention;

[0035] Figure 4 For the present invention Figure 3 Schematic diagram of the internal structure of the vertical cooling component;

[0036] Figure 5 For the present invention Figure 4 A schematic diagram of the local structure of the middle and bottom cooling components;

[0037] Figure 6 For the present invention Figure 4 A schematic diagram of the structure of the auxiliary cooling component;

[0038] Figure 7 For the present invention Figure 3 Exploded diagram of the adsorption component;

[0039] Figure 8For the present invention Figure 3 Exploded view of the dry component;

[0040] In the figure: 100, power supply prefabricated cabin; 101, energy storage battery module; 102, maintenance door; 200, bottom cooling structure; 201, vertical cooling component; 2011, lateral fan; 2012, evaporator; 2013, vertical ventilation channel; 2014, support frame; 2015, ventilation hole; 202, bottom cooling component; 2021, bottom ventilation channel; 2022, bottom fan; 2023, air outlet channel; 203, auxiliary cooling component; 2031, Water collecting bucket; 2032, collecting bottom box; 2033, suction pipe; 2034, distribution pipe; 2035, fiber ice curtain; 2036, connecting pipe; 2037, circulation pump; 204, drying component; 2041, shielding frame; 2042, guide rail; 2043, fixed guide sleeve; 2044, telescopic cylinder; 205, adsorption component; 2051, ring frame; 2052, circular hollow net; 2053, arc-shaped sliding hole; 2054, fixing rod; 2055, limit ring. DETAILED DESCRIPTION

[0041] The technical scheme of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0042] Embodiment 1

[0043] See also Figure 1 - Figure 6 , the present application provides a mobile emergency power supply prefabricated cabin, comprising:

[0044] A power supply prefabricated cabin body 100, wherein an energy storage battery module 101 is arranged on the inner wall of the power supply prefabricated cabin body 100;

[0045] The bottom cooling structure 200 is installed inside the power supply prefabricated cabin body 100 and dissipates heat from the bottom to the top of the energy storage battery module 101. By providing the bottom cooling structure 200, the bottom of the power supply prefabricated cabin body 100 can be fully filled, and according to the size and distribution position of the energy storage battery module 101, low-temperature air is discharged from the bottom to the top to act on the surface of the energy storage battery module 101, and the low-temperature air is allowed to enter the gap at the joint of the energy storage battery module 101 from the bottom to the top, so as to improve the heat dissipation and cooling effect of the energy storage battery module 101, so that it is in a suitable temperature use environment, and reduce the influence of high temperature on the life of the energy storage battery module 101. The bottom cooling structure 200 includes a vertical cooling component 201 installed at the rear end of the power supply prefabricated cabin body 100 for sucking and cooling the outside air, two bottom cooling components 202 installed in an L shape below the vertical cooling component 201, and an auxiliary cooling component 203 for assisting the cooling of the gas entering the bottom cooling component 202;

[0046] The vertical cooling component 201 includes a vertical ventilation channel 2013 embedded in the inner wall of the power supply prefabricated cabin body 100, so as to facilitate the sucked air to enter the vertical ventilation channel 2013, and an evaporator 2012 for cooling the air is arranged inside the vertical ventilation channel 2013.

[0047] In this embodiment, preferably, the vertical cooling member 201 further includes ventilation holes 2015 opened on the front surface to provide ventilation for the cooling member 201. Figure 2 For example, in order to show the position of the ventilation hole 2015, the adsorption component 205 is hidden to facilitate the display of the ventilation hole 2015. A lateral fan 2011 is provided on the rear surface of the vertical ventilation channel 2013. A filter is provided on the surface of the lateral fan 2011 to prevent more impurities from being sucked in when the outside air is sucked in. The lateral fan 2011 is located on the rear side of the evaporator 2012 to facilitate the sucked air to pass through the evaporator 2012 for cooling.

[0048] In this embodiment, preferably, the bottom cooling member 202 for cooling the bottom of the energy storage battery module 101 upwards includes:

[0049] The bottom ventilation channel 2021 is respectively installed on the front and rear surfaces of the lower end of the vertical ventilation channel 2013, and the other end of the bottom ventilation channel 2021 extends to the bottom of the front end of the energy storage battery module 101, and the length is convenient to adapt to the length of the energy storage battery module 101 and the length of the power supply prefabricated cabin body 100;

[0050] A bottom fan 2022 is vertically installed at the rear end of the bottom ventilation channel 2021 and communicates with the vertical ventilation channel 2013. The bottom fan 2022 can be used to suck the air inside the vertical ventilation channel 2013 into the bottom ventilation channel 2021;

[0051] There are also multiple air outlet channels 2023 opened along the length direction of the bottom ventilation channel 2021, and the distribution position of each air outlet channel 2023 can adapt to the size of the energy storage battery module 101, so that the wind discharged from the air outlet channel 2023 can evenly dissipate heat from the bottom of the energy storage battery module 101.

[0052] In this embodiment, preferably, the auxiliary cooling component 203 for collecting the condensed liquid in the vertical ventilation channel 2013 can be used to further cool the air entering the bottom ventilation channel 2021, so that the temperature of the air discharged from the air outlet channel 2023 is reduced, which is convenient for heat dissipation and cooling of the energy storage battery module 101 from the bottom to the top. The auxiliary cooling component 203 includes:

[0053] A gathering bottom box 2032 is horizontally located at the bottom of the vertical ventilation channel 2013. The gathering bottom box 2032 can collect water drops dripping from the surface of the evaporator 2012. Two circulation pumps 2037 are arranged on the front surface of the gathering bottom box 2032. The circulation pumps 2037 can pump water out of the gathering bottom box 2032.

[0054] Multiple fiber ice curtains 2035 are vertically installed inside the bottom ventilation channel 2021. The fiber ice curtains 2035 are located on the rear side of each air outlet channel 2023, so that the air first passes through the fiber ice curtains 2035 and then is discharged from the air outlet channel 2023. The front end of the circulation pump 2037 is connected to a distribution pipe 2034 located on the inner side of the bottom ventilation channel 2021. The length of the distribution pipe 2034 can be adapted to the length of the bottom ventilation channel 2021. A connecting pipe 2036 is arranged between the distribution pipe 2034 and the fiber ice curtain 2035 to facilitate the delivery of water into the fiber ice curtain 2035.

[0055] In this embodiment, preferably, a suction pipe 2033 is provided between the circulation pump 2037 and the suction pipe 2033, and a water collecting hopper 2031 installed on the outside of the power supply prefabricated cabin body 100 is provided on the rear surface of the vertical ventilation channel 2013. The water collecting hopper 2031 can be located outside the power supply prefabricated cabin to collect rainwater, thereby increasing the water storage capacity inside the gathering bottom box 2032, and the gathering bottom box 2032 can be provided with a water injection pipe to facilitate the injection of additional water into the gathering bottom box 2032.

[0056] In summary, when in use, the lateral fan 2011 works to suck the outside air into the vertical ventilation channel 2013, and the evaporator 2012 absorbs heat and cools the air, and a part of the cooled air is discharged through the ventilation hole 2015, and the discharged cooled air is dried by the adsorption member 205, so that the air can both dissipate heat and cool the energy storage battery module 101 without increasing the extra humidity inside the cabin, and another part of the cooled air is sucked by the bottom fan 2022 and sent to the bottom ventilation channel 2021, and the circulation pump 2037 works to suck the water in the bottom box 2032 into the distribution pipe 2034, and then sent to the multiple connecting pipes 2034 through the distribution pipe 2034. 036, and sent into the fiber ice curtain 2035 from the end, so that the cooling air passes through the fiber ice curtain 2035 and is cooled again, the cooling air flows along the bottom ventilation channel 2021, and is discharged from multiple air outlet channels 2023, the discharged cooling air flows upward and acts on the bottom of the energy storage battery module 101, and flows upward along the bottom, enters the gap between the energy storage battery modules 101, is fully dissipated and cooled, and the energy storage battery module 101 is dissipated and cooled from multiple directions, so that the energy storage battery module 101 maintains a suitable operating temperature, reduces the impact of high temperature on the life of the energy storage battery module 101, and increases the working safety and stability of the energy storage battery module 101.

[0057] Embodiment 2

[0058] Reference Figure 7 , which is the second embodiment of the present invention.

[0059] In this embodiment, preferably, by providing an adsorption component 205, the low-temperature air entering the power supply prefabricated cabin body 100 can be fully adsorbed, so that the air entering the cabin body is dry, and the humidity inside the cabin body will not be increased. The low-temperature dry air entering the cabin body is convenient for fully cooling and dissipating the energy storage battery module 101. The adsorption component 205 located on the front surface of the ventilation hole 2015 includes:

[0060] Two annular frames 2051 are installed in a front-to-back manner, and a circular hollow net 2052 is arranged inside the annular frame 2051. The circular hollow net 2052 is filled with a silica gel material that can dry out moisture. The rear annular frame 2051 fits the front surface of the vertical ventilation channel 2013. The surfaces of the two annular frames 2051 are provided with arc-shaped sliding holes 2053. The angle between the two annular frames 2051 can be adjusted so that the positions of the two arc-shaped sliding holes 2053 thereon are misaligned, thereby making the mesh holes on the circular hollow net 2052 misaligned, so as to facilitate full absorption of the passing gas.

[0061] A fixing rod 2054 fixed on the surface of the vertical ventilation channel 2013 and passing through two arc-shaped sliding holes 2053 and exposed outside, the two fixing rods 2054 can support the two annular frames 2051 at the same time;

[0062] And a limiting ring 2055 is screwed and sleeved on the free end of the fixing rod 2054 . The diameter of the limiting ring 2055 is larger than the width of the arc-shaped sliding hole 2053 . The limiting ring 2055 realizes the compression and fixation of the annular frame 2051 .

[0063] In summary, when in use, the two annular frames 2051 can be attached to the front surface of the vertical ventilation channel 2013, and the two annular frames 2051 can be sleeved on the fixed rod 2054. According to the low-temperature air discharge amount, the two annular frames 2051 can be rotated around the fixed rod 2054, so that the mesh holes on the two circular hollow nets 2052 are staggered. The staggered mesh holes make the discharged cooling air be discharged in a tortuous manner, and fully contact the material in the circular hollow net 2052 to be adsorbed and dried. When the position on the circular hollow net 2052 is suitable, tighten the limit ring 2055 to press and fix it to the outermost annular frame 2051, so that the entire adsorption component 205 is fixed, and the entire adsorption component 205 is convenient for disassembly and assembly.

[0064] Embodiment 3

[0065] Reference Figure 8 , which is the third embodiment of the present invention.

[0066] In this embodiment, preferably, a drying component 204 for drying the exhausted gas is installed on the upper surface of the bottom ventilation channel 2021. When the drying component 204 directly blocks the air outlet channel 2023, the air passing through the air outlet channel 2023 can be ensured to be dry, thereby keeping the interior of the power supply prefabricated cabin body 100 dry. When the drying component 204 does not block the air outlet channel 2023, the exhausted low-temperature air contains a slight mist to maintain the humidity inside the cabin body. The drying component 204 includes:

[0067] A shielding frame 2041 is located above the air outlet channel 2023. The shielding frame 2041 is a hollow rectangular three-dimensional structure, and small holes are opened on the surface to facilitate air to pass through. Guide rails 2042 are set at both ends of the shielding frame 2041;

[0068] A telescopic cylinder 2044 is installed on the upper surface of the bottom ventilation channel 2021 and located on the inner side of the shielding frame 2041. A stable seat is provided between the telescopic cylinder 2044 and the upper surface of the bottom ventilation channel 2021 to achieve stable installation of the telescopic cylinder 2044. The piston rod arranged inside the telescopic cylinder 2044 is connected to the shielding frame 2041. A fixed guide sleeve 2043 located on the outer side of the guide rail 2042 is provided on the upper surface of the bottom ventilation channel 2021. The fixed guide sleeve 2043 is slidably connected to the guide rail 2042.

[0069] In this embodiment, preferably, an inspection door 102 is provided on the front surface of the prefabricated power supply cabin body 100 to facilitate the inspection of the interior of the prefabricated power supply cabin body 100 , and a heat dissipation hole is provided on the top of the inspection door 102 .

[0070] In this embodiment, preferably, a plurality of support frames 2014 for supporting the evaporator 2012 are provided on the inner wall of the vertical ventilation channel 2013 to achieve the installation strength of the evaporator 2012 .

[0071] In summary, when it is necessary to block the air outlet channel 2023, the telescopic cylinder 2044 works, and the internal piston rod extends, driving the shielding frame 2041 to move outward, driving the guide rail 2042 to move in the fixed guide sleeve 2043, and the shielding frame 2041 is located directly above the air outlet channel 2023, so that the air is discharged from the air outlet channel 2023, and the air fully passes through the shielding frame 2041 and is absorbed by the adsorption material arranged inside. At the same time, the shielding frame 2041 and the circular hollow net 2052 are filled with the same material, which are both materials that physically adsorb and dry the air. The air discharged from the air outlet channel 2023 remains dry and does not cause additional humidity to the internal space of the cabin. When the air outlet channel 2023 is not blocked, the air is directly discharged from the air outlet channel 2023, and the discharged low-temperature air is mixed with water mist and is directly discharged into the cabin. When the cabin is too dry, the low-temperature air can be used to cool down the cabin while increasing the humidity in the cabin, reducing the danger caused by excessive dryness and increasing the safety of the power supply prefabricated cabin.

[0072] Embodiment 4

[0073] This embodiment is obtained by combining the first embodiment, the second embodiment and the third embodiment.

[0074] When in use, the vertical cooling component 201 is used to cool the sucked air, and a part of it is directly sent into the interior of the power supply prefabricated cabin 100 to cool the battery module, and the other part enters the bottom cooling component 202 to dissipate heat and cool the surface of the battery module from the bottom upward, and dissipate heat in the gaps, and the air entering the bottom ventilation channel 2021 is further cooled by the auxiliary cooling component 203, so that the air is fully cooled, thereby improving the cooling effect on the battery module.

[0075] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical method of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical method of the present invention.

Claims

1. A mobile emergency power supply prefabricated cabin, characterized in that: include: A power supply prefabricated cabin body (100), wherein an energy storage battery module (101) is arranged on an inner wall of the power supply prefabricated cabin body (100); A bottom cooling structure (200) installed inside a power supply prefabricated cabin body (100) and dissipating heat upward from the bottom of an energy storage battery module (101), the bottom cooling structure (200) comprising a vertical cooling component (201) installed at the rear end of the power supply prefabricated cabin body (100) for sucking and cooling external air, two bottom cooling components (202) installed below the vertical cooling component (201) in an L shape, and an auxiliary cooling component (203) for assisting in cooling gas entering the bottom cooling component (202); The vertical cooling component (201) comprises a vertical ventilation channel (2013) embedded in the inner wall of the power supply prefabricated cabin body (100), and an evaporator (2012) for cooling air is arranged inside the vertical ventilation channel (2013).

2. The mobile emergency power supply prefabricated cabin according to claim 1 is characterized in that: The vertical cooling component (201) further includes ventilation holes (2015) opened on the front surface, and a lateral fan (2011) is provided on the rear surface of the vertical ventilation channel (2013), and the lateral fan (2011) is located on the rear side of the evaporator (2012).

3. The mobile emergency power supply prefabricated cabin according to claim 2 is characterized in that: The bottom cooling member (202) for cooling the bottom of the energy storage battery module (101) upwards comprises: A bottom ventilation channel (2021) is respectively installed on the front and rear surfaces of the lower end of the vertical ventilation channel (2013), and the other end of the bottom ventilation channel (2021) extends to below the front end of the energy storage battery module (101); A bottom fan (222) vertically mounted at the rear end of the bottom ventilation channel (221) where it communicates with the vertical ventilation channel (213); And a plurality of air outlet channels (2023) are opened along the length direction of the bottom ventilation channel (2021).

4. The mobile emergency power supply prefabricated cabin according to claim 3 is characterized in that: An auxiliary cooling component (203) for collecting liquid condensed in the vertical ventilation channel (2013), the auxiliary cooling component (203) comprising: A gathering bottom box (2032) horizontally located at the bottom of the vertical ventilation channel (2013), wherein two circulation pumps (2037) are arranged on the front surface of the gathering bottom box (2032); A plurality of fiber ice curtains (2035) are vertically installed inside the bottom ventilation channel (2021), the front end of the circulation pump (2037) is connected to a distribution pipe (2034) located inside the bottom ventilation channel (2021), and a connecting pipe (2036) is provided between the distribution pipe (2034) and the fiber ice curtain (2035).

5. The mobile emergency power supply prefabricated cabin according to claim 4 is characterized in that: A water suction pipe (2033) is provided between the circulation pump (2037) and the water suction pipe (2033), and a water collecting hopper (2031) installed on the outside of the power supply prefabricated cabin body (100) is provided on the rear surface of the vertical ventilation channel (2013).

6. The mobile emergency power supply prefabricated cabin according to claim 4 is characterized in that: The adsorption member (205) located on the front surface of the ventilation hole (2015) comprises: Two annular frames (2051) are installed in a front-to-back manner, wherein a circular hollow net (2052) is arranged inside the annular frames (2051), the annular frame (2051) on the rear side is in abutment with the front surface of the vertical ventilation channel (2013), and arc-shaped sliding holes (2053) are provided on the surfaces of the two annular frames (2051); A fixing rod (2054) fixed on the surface of the vertical ventilation channel (2013) and penetrating through the two arc-shaped sliding holes (2053) and exposed on the outside; and a limiting ring (2055) screwed and sleeved on the free end of the fixing rod (2054).

7. The mobile emergency power supply prefabricated cabin according to claim 4 is characterized in that: A drying component (204) for drying the exhausted gas is installed on the upper surface of the bottom ventilation channel (2021), and the drying component (204) comprises: A shielding frame (2041) located above the air outlet channel (2023), wherein guide rails (2042) are provided at both ends of the shielding frame (2041); A telescopic cylinder (2044) is installed on the upper surface of the bottom ventilation channel (2021) and is located inside the shielding frame (2041); a piston rod arranged inside the telescopic cylinder (2044) is connected to the shielding frame (2041).

8. The mobile emergency power supply prefabricated cabin according to claim 7 is characterized in that: The upper surface of the bottom ventilation channel (2021) is provided with a fixed guide sleeve (2043) located outside the guide rail (2042), and the fixed guide sleeve (2043) is slidably connected to the guide rail (2042).

9. The mobile emergency power supply prefabricated cabin according to claim 1, characterized in that: The front surface of the power supply prefabricated cabin body (100) is provided with an inspection door (102), and a heat dissipation hole is provided on the top of the inspection door (102).

10. The mobile emergency power supply prefabricated cabin according to claim 1, characterized in that: The inner wall of the vertical ventilation channel (2013) is provided with a plurality of support frames (2014) for supporting the evaporator (2012).

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