Refrigerating and heating device for converting steam into hot water

Abstract

The utility model relates to a steam conversion hot water refrigerating and heating device which comprises a low-pressure steam input pipeline, a low-pressure steam output pipeline, a circulating hot water input pipeline, a circulating hot water output pipeline and a heat exchanger, and the tail end of the low-pressure steam input pipeline is connected with a first low-pressure steam input branch pipe and a second low-pressure steam input branch pipe in parallel. The head end of the low-pressure steam output pipeline is connected with a first low-pressure steam output branch pipe and a second low-pressure steam output branch pipe in parallel, the tail end of the circulating hot water input pipeline is communicated with a third hose, and the head end of the circulating hot water output pipeline is communicated with a fourth hose; the top of the air distribution pipe is communicated with the first low-pressure steam input branch pipe, a plurality of air outlet holes are formed in the bottom of the air distribution pipe, and a plurality of flow blocking rings are arranged on the inner side wall of the barrel below the air distribution pipe. The heat exchange effect can be effectively enhanced, the tube pass can be conveniently disassembled, assembled and replaced, and the heat exchanger is more practical.

Description

TECHNICAL FIELD

[0001] The utility model belongs to steam heat exchange technical field, concretely relates to a steam conversion hot water refrigeration heating device. BACKGROUND

[0002] At present, a set of lithium bromide unit is used in enterprises to supply summer air conditioning refrigeration for the office area and production management area before the factory, a set of heat exchange unit is used to supply winter heating for the office area and production management area before the factory, another set of heat exchange unit is used to supply winter heating for the production area, a set of life hot water unit is used to supply bathroom and office area life hot water before the factory, and 0.3MPa, 120 DEG C process steam condensate is used as heat source normally, but when the production device is in the period of starting debugging or the production device is in failure and cannot produce full load, the required 0.3MPa, 120 DEG C process steam condensate cannot be provided, and the actual air conditioning refrigeration and heating needs cannot be met.Therefore, when the required process steam condensate is lacking, enterprises usually introduce high-temperature and high-pressure steam produced by a boiler to drive low-pressure steam after pressure reduction of the steam turbine by a steam turbine generator set and a boiler feed water pump or low-pressure steam produced by a production device, first heat circulating hot water in a steam-water heat exchange equipment by the low-pressure steam, make the circulating hot water meet the needs, and then use the circulating hot water to replace the process steam condensate as heat source, so that the corresponding refrigeration and heating needs are met.But in actual heat exchange, the steam-water heat exchanger used is mostly conventional tube-shell heat exchanger, the overall heat exchange effect is limited, and the tube is difficult to replace after corrosion, which is not conducive to the overall heat exchange work, and needs to be improved. CONTENT OF UTILITY MODEL

[0003] Therefore, the utility model aims at providing a steam conversion hot water refrigeration heating device, which can effectively enhance the heat exchange effect and conveniently disassemble and replace the tube, so as to solve the above problems.

[0004] To achieve the above object, the utility model adopts the technical scheme: a steam conversion hot water refrigeration heating device, including low pressure steam input pipeline, low pressure steam output pipeline, circulating hot water input pipeline, circulating hot water output pipeline and heat exchanger, the tail end of low pressure steam input pipeline is parallelly connected with first low pressure steam input branch pipe and second low pressure steam input branch pipe and second low pressure steam input branch pipe is fixedly connected with first hose, the first end of low pressure steam output pipeline is parallelly connected with first low pressure steam output branch pipe and second low pressure steam output branch pipe and second low pressure steam output branch pipe is fixedly connected with second hose, the tail end of circulating hot water input pipeline is fixedly connected with third hose, the first end of circulating hot water output pipeline is fixedly connected with fourth hose, the heat exchanger includes cylinder, the upper portion in the cylinder is fixedly provided with a ring of annular air distribution pipe, the top of air distribution pipe is fixedly connected with first low pressure steam input branch pipe, and a plurality of gas outlet holes are formed in the bottom, a plurality of resistance rings that are spaced apart upwards and downwards are fixedly arranged on the inner side wall of the cylinder below air distribution pipe, the upper and lower surfaces of resistance ring are all inclined surface, the side part of the cylinder below the lowermost resistance ring is fixedly connected with first low pressure steam output branch pipe, the top of cylinder is provided with first through -hole and second through -hole, and the bottom is provided with third through -hole, a plurality of electric push rods that are spaced apart circumferentially are embedded on the outer bottom of the cylinder on the third through -hole side, the telescopic end of electric push rod faces down and is fixedly connected with motor, the output shaft of motor faces down and is fixedly connected with L-shaped limit board, the top of the vertical part of limit board is fixedly provided with plug block, the coaxial heat exchange straight pipe is arranged in the cylinder, the top of heat exchange straight pipe abuts on the inner top of cylinder, and inverted T-shaped cover plate is fixedly arranged coaxially on the bottom, the small diameter end of cover plate is inserted in third through -hole, the large diameter end abuts on the outer bottom of cylinder, and a plurality of blind holes are formed in the side of the end bottom and the vertical part of limit board abuts on the bottom of the large diameter end of cover plate, and plug block and blind hole are one to one corresponding and are inserted, the top of heat exchange straight pipe is fixedly connected with air inlet pipe, and the bottom is fixedly connected with air outlet pipe that penetrates cover plate, the air inlet pipe extends out of cylinder through first through -hole and is connected with first hose through first quick -joint, the air outlet pipe is connected with second hose through second quick -joint, a plurality of resistance plates that are spaced apart upwards and downwards are arranged in heat exchange straight pipe, one end of resistance plate is fixedly connected with the inner side wall of heat exchange straight pipe, and the other end leaves a gap with the inner side wall of heat exchange straight pipe, the fixed ends of adjacent two resistance plates are opposite, the upper part of the outer side of heat exchange straight pipe is fixedly sleeved with annular water collecting pipe, and the lower part is fixedly sleeved with annular water distribution pipe, the bottom of water distribution pipe is fixedly connected with water inlet pipe that penetrates cover plate, the water inlet pipe is connected with third hose through third quick -joint, the top of water collecting pipe is fixedly connected with water outlet pipe, the water outlet pipe extends out of cylinder through second through -hole and is connected with fourth hose through fourth quick -joint, the top of water distribution pipe and the bottom of water collecting pipe are fixedly connected through a plurality of serpentine heat exchange coils that are spaced apart circumferentially, and the inner side between heat exchange coil and resistance ring leaves a gap.

[0005] Preferably, the air inlet pipe is adapted to the first through hole.

[0006] Preferably, the water outlet pipe is adapted to the second through hole.

[0007] Preferably, the small-diameter end of the cover plate is adapted to the third through hole.

[0008] Preferably, a sealing ring is fixedly sleeved on each of the first through hole, the second through hole and the third through hole.

[0009] Preferably, the plug is adapted to the corresponding blind hole.

[0010] The utility model discloses a beneficial effect is: utilize low pressure steam heating circulating hot water, can be transported low pressure steam to first low pressure steam input branch pipe and second low pressure steam input branch pipe in low pressure steam input line, and the low pressure steam of entering first low pressure steam input branch pipe continues to enter annular gas distribution pipe, and even downwardly spray to the clearance between cylinder and heat exchange coil through the gas outlet hole on the gas distribution pipe, then in the clearance, from top to bottom flow, and in the flowing process, the setting of multiple flow resistance rings, can effectively slow down the flow speed of this part low pressure steam, prolong the residence time of this part low pressure steam in the clearance, and can be guided under the slope of flow resistance ring upper part and direct this part low pressure steam to heat exchange coil multiple times.

[0011] When the tube course needs to be replaced, the connection between the inlet pipe and the first hose can be disconnected by using the first quick connector, the connection between the outlet pipe and the second hose can be disconnected by using the second quick connector, the connection between the inlet water pipe and the third hose can be disconnected by using the third quick connector, and the connection between the outlet water pipe and the fourth hose can be disconnected by using the fourth quick connector in a shutdown state. Then, the electric push rod is operated to extend the telescopic end, so that the motor and the limiting plate are driven to move downward as a whole until the plug is completely pulled out of the corresponding blind hole. Next, the motor is operated to drive the limiting plate to rotate 180 degrees as a whole, so that the vertical part of the limiting plate is turned to the side away from the cover plate. Then, the cover plate is controlled to move downward until the heat exchange straight pipe is completely pulled out of the cylinder, so that the disassembly of the original entire tube course is completed. After that, a new tube course is taken and inserted into the cylinder in alignment with the third through hole, so that the heat exchange straight pipe abuts against the inner top of the cylinder after penetrating through the plurality of flow resistance rings and the gas distribution pipe, and the inlet pipe is inserted into the first through hole in alignment, and the outlet water pipe is inserted into the second through hole in alignment. Then, the motor is operated again to drive the limiting plate to rotate 180 degrees, so that the vertical part of the limiting plate is turned to below the cover plate. Next, the electric push rod is operated again to contract the telescopic end, so that the motor and the limiting plate are driven to move upward as a whole until the vertical part of the limiting plate abuts against the cover plate, and at this time, the plug can be inserted into the corresponding blind hole in place, so that the cover plate can be effectively abutted and limited, and the plug can be locked in place, that is, the fixing and installation of the new tube course are completed, and the installation is stable and does not affect the subsequent use. After that, the inlet pipe and the first hose are connected by using the first quick connector again, the outlet pipe and the second hose are connected by using the second quick connector again, the inlet water pipe and the third hose are connected by using the third quick connector again, and the outlet water pipe and the fourth hose are connected by using the fourth quick connector again, so that the steam-water heat exchange can be continued. In this way, the tube course can be flexibly and conveniently disassembled and replaced, the adverse effects on the heat exchange work are reduced, the use of the device as a whole is more flexible and convenient, and the device is more practical. BRIEF DESCRIPTION OF DRAWINGS

[0012] Fig. 1 is a front view structural schematic diagram of the utility model;

[0013] Fig. 2 is a front view structural schematic diagram of the heat exchanger of the utility model;

[0014] Fig. 3 is a front view structural schematic diagram of the cylinder of the utility model;

[0015] Fig. 4 is a bottom view structural schematic diagram of the cylinder of the utility model;

[0016] Fig. 5 is a front view structural schematic diagram of the heat exchange straight pipe of the utility model;

[0017] Fig. 6 is the bottom view structural schematic diagram of the heat exchange straight pipe of the utility model;

[0018] Fig. 7 is the main view cross section structural schematic diagram of the heat exchange straight pipe of the utility model.

[0019] Marked number in drawing: 1 is low pressure steam input pipeline, 2 is low pressure steam output pipeline, 3 is circulating hot water input pipeline, 4 is circulating hot water output pipeline, 5 is heat exchanger, 6 is first low pressure steam input branch pipe, 7 is second low pressure steam input branch pipe, 8 is first hose, 9 is first low pressure steam output branch pipe, 10 is second low pressure steam output branch pipe, 11 is second hose, 12 is third hose, 13 is fourth hose, 14 is cylinder, 15 is air distribution pipe, 16 is air outlet hole, 17 is flow resistance ring, 18 is inclined surface, 19 is first through hole, 20 is second through hole, 21 is third through hole, 22 is electric push rod, 23 is motor, 24 is limit plate, 25 is plug block, 26 is heat exchange straight pipe, 27 is cover plate, 28 is blind hole, 29 is air inlet pipe, 30 is air outlet pipe, 31 is first quick connector, 32 is second quick connector, 33 is flow resistance plate, 34 is water distribution pipe, 35 is water collecting pipe, 36 is water inlet pipe, 37 is third quick connector, 38 is water outlet pipe, 39 is fourth quick connector, 40 is heat exchange coil pipe, 41 is sealing ring. DETAILED DESCRIPTION

[0020] The utility model will be described further in detail in combination with the drawings and specific implementation:

[0021] As Figs. 1 to 7As shown, a steam conversion hot water refrigeration heating device includes a low-pressure steam input pipeline 1, a low-pressure steam output pipeline 2, a circulating hot water input pipeline 3, a circulating hot water output pipeline 4 and a heat exchanger 5. The tail end of the low-pressure steam input pipeline 1 is connected in parallel with a first low-pressure steam input branch pipe 6 and a second low-pressure steam input branch pipe 7, and the second low-pressure steam input branch pipe 7 is fixedly connected with a first hose 8. The head end of the low-pressure steam output pipeline 2 is connected in parallel with a first low-pressure steam output branch pipe 9 and a second low-pressure steam output branch pipe 10, and the second low-pressure steam output branch pipe 10 is fixedly connected with a second hose 11. The tail end of the circulating hot water input pipeline 3 is fixedly connected with a third hose 12, and the head end of the circulating hot water output pipeline 4 is fixedly connected with a fourth hose 13. The heat exchanger 5 includes a cylinder body 14, and a ring-shaped air distribution pipe 15 is fixedly arranged in the upper part of the cylinder body 14. The top of the air distribution pipe 15 is fixedly connected with the first low-pressure steam input branch pipe 6, and a plurality of gas outlet holes 16 are formed in the bottom of the air distribution pipe 15. A plurality of flow resistance rings 17 are fixedly arranged on the inner side wall of the cylinder body 14 below the air distribution pipe 15 and are spaced apart from each other in an up-down direction. The upper and lower surfaces of the flow resistance rings 17 are both inclined surfaces 18. The side part of the cylinder body 14 below the lowermost flow resistance ring 17 is fixedly connected with the first low-pressure steam output branch pipe 9. A first through hole 19 and a second through hole 20 are formed in the top of the cylinder body 14, and a third through hole 21 is formed in the bottom of the cylinder body 14. A plurality of electric push rods 22 are embedded on the outer bottom of the cylinder body 14 around the third through hole 21 and are spaced apart from each other in a circumferential direction. The extension end of each electric push rod 22 is downwardly fixedly connected with an electric motor 23. The output shaft of the electric motor 23 is downwardly fixedly connected with an L-shaped limiting plate 24, and the top of the vertical part of the limiting plate 24 is fixedly arranged with a plug block 25. A heat exchange straight pipe 26 is coaxially arranged in the cylinder body 14. The top of the heat exchange straight pipe 26 abuts against the inner top of the cylinder body 14, and a T-shaped cover plate 27 is coaxially fixedly arranged on the bottom of the heat exchange straight pipe 26. The small-diameter end of the cover plate 27 is inserted into the third through hole 21, the large-diameter end of the cover plate 27 abuts against the outer bottom of the cylinder body 14, and a plurality of blind holes 28 are formed in the bottom of the large-diameter end of the cover plate 27. The vertical part of the limiting plate 24 abuts against the bottom of the large-diameter end of the cover plate 27, and the plug block 25 is inserted into the blind hole 28 in a one-to-one correspondence. An air inlet pipe 29 is fixedly connected with the top of the heat exchange straight pipe 26, and an air outlet pipe 30 is fixedly connected with the bottom of the heat exchange straight pipe 26 and penetrates through the cover plate 27. The air inlet pipe 29 extends out of the cylinder body 14 through the first through hole 19 and is connected with the first hose 8 through a first quick connector 31. The air outlet pipe 30 is connected with the second hose 11 through a second quick connector 32. A plurality of flow resistance plates 33 are arranged in the heat exchange straight pipe 26 and are spaced apart from each other in an up-down direction. One end of each flow resistance plate 33 is fixedly connected with the inner side wall of the heat exchange straight pipe 26, and the other end of each flow resistance plate 33 leaves a gap with the inner side wall of the heat exchange straight pipe 26. The fixed ends of adjacent two flow resistance plates 33 are opposite to each other.The upper part of the outer side of the heat exchange straight pipe 26 is fixedly sleeved with an annular water collecting pipe 35, and the lower part is fixedly sleeved with an annular water distributing pipe 34. The bottom of the water distributing pipe 34 is fixedly communicated with a water inlet pipe 36 penetrating the cover plate 27. The water inlet pipe 36 is communicated with the third hose 12 through a third quick connector 37. The top of the water collecting pipe 35 is fixedly communicated with a water outlet pipe 38. The water outlet pipe 38 extends out of the barrel 14 through the second through hole 20 and is communicated with the fourth hose 13 through a fourth quick connector 39. The top of the water distributing pipe 34 and the bottom of the water collecting pipe 35 are fixedly communicated through a plurality of circumferentially spaced serpentine heat exchange coils 40. A gap is left between the heat exchange coils 40 and the inner side of the flow blocking ring 17.

[0022] When the low-pressure steam is used to heat the circulating hot water, the low-pressure steam can be delivered into the first low-pressure steam input branch pipe 6 and the second low-pressure steam input branch pipe 7 through the low-pressure steam input pipe 1. The low-pressure steam entering the first low-pressure steam input branch pipe 6 continues to enter the annular air distribution pipe 15 and is uniformly sprayed downward into the gap between the cylinder 14 and the heat exchange coil 40 through the air outlet holes 16 on the air distribution pipe 15, and then flows from top to bottom in the gap. During the flow process, the multiple flow resistance rings 17 can effectively slow down the flow speed of the low-pressure steam, prolong the residence time of the low-pressure steam in the gap, and guide the low-pressure steam to the heat exchange coil 40 multiple times under the guidance of the inclined surface 18 on the top of the flow resistance ring 17. The low-pressure steam entering the second low-pressure steam input branch pipe 7 can enter the heat exchange straight pipe 26 through the first hose 8 and the air inlet pipe 29 and flow from top to bottom, and during the flow process, the multiple flow resistance plates 33 can make the low-pressure steam flow in a zigzag shape, which can effectively slow down the flow speed of the low-pressure steam and prolong the residence time of the low-pressure steam in the heat exchange straight pipe 26. At the same time, the circulating hot water to be heated can be delivered into the water distribution pipe 34 through the circulating hot water input pipe 3, the third hose 12, and the water inlet pipe 36, and then be distributed to each heat exchange coil 40, and flow from bottom to top to the water collection pipe 35 through the heat exchange coil 40. The zigzag arrangement of the heat exchange coil 40 can effectively slow down the flow speed of the circulating hot water and prolong the residence time of the circulating hot water in the heat exchange coil 40, so that the circulating hot water can exchange heat with the low-pressure steam flowing from top to bottom in the gap and the heat exchange straight pipe 26 more fully during the flow process, and can exchange heat with the heat exchange coil 40 from the outside and the center of the heat exchange coil 40 at the same time, which can greatly enhance the overall heat exchange effect and is more conducive to transferring the heat in the low-pressure steam to the circulating hot water and improving the overall heat exchange efficiency and quality, so that the circulating hot water can be heated to meet the required needs, and the circulating hot water meeting the required needs can be used as a heat source to meet the corresponding refrigeration and heating needs. After heat exchange, the low-pressure steam with reduced temperature in the gap can be output to the low-pressure steam output pipe 2 through the first low-pressure steam output branch pipe 9, the low-pressure steam in the heat exchange straight pipe 26 can be output to the low-pressure steam output pipe 2 through the air outlet pipe 30, the second hose 11, and the second low-pressure steam output branch pipe 10, and the circulating hot water after being heated can be collected in the water collection pipe 35 and then output to the circulating hot water output pipe 4 through the water outlet pipe 38 and the fourth hose 13, and be delivered to the subsequent system for use as a heat source.

[0023] When the tube needs to be replaced, the first quick connector 31 is used to disconnect the inlet pipe 29 from the first hose 8, the second quick connector 32 is used to disconnect the outlet pipe 30 from the second hose 11, the third quick connector 37 is used to disconnect the water inlet pipe 36 from the third hose 12, and the fourth quick connector 39 is used to disconnect the water outlet pipe 38 from the fourth hose 13. Then, the electric push rod 22 is operated to extend the telescopic end, which drives the motor 23 and the limiting plate 24 to move downward as a whole until the plug 25 is completely extracted from the corresponding blind hole 28. Next, the motor 23 is operated to rotate the limiting plate 24 by 180 degrees, which drives the vertical part of the limiting plate 24 to be turned away from the cover plate 27, and then the cover plate 27 is controlled to move downward until the heat exchange straight pipe 26 is completely extracted from the cylinder 14, thereby completing the disassembly of the original tube. After that, a new tube is taken and inserted into the cylinder 14 through the third through hole 21, so that the heat exchange straight pipe 26 penetrates through the plurality of flow resistance rings 17 and the gas distribution pipe 15 and abuts against the inner top of the cylinder 14, and the inlet pipe 29 is inserted through the first through hole 19 and the water outlet pipe 38 is inserted through the second through hole 20. Then, the motor 23 is operated again to rotate the limiting plate 24 by 180 degrees, which drives the vertical part of the limiting plate 24 to be turned below the cover plate 27. Next, the electric push rod 22 is operated again to retract the telescopic end, which drives the motor 23 and the limiting plate 24 to move upward as a whole until the vertical part of the limiting plate 24 abuts against the cover plate 27, and at this time the plug 25 can be inserted into the corresponding blind hole 28, thereby effectively limiting and locking the cover plate 27, which completes the installation of the new tube. After that, the inlet pipe 29 is connected with the first hose 8 through the first quick connector 31, the outlet pipe 30 is connected with the second hose 11 through the second quick connector 32, the water inlet pipe 36 is connected with the third hose 12 through the third quick connector 37, and the water outlet pipe 38 is connected with the fourth hose 13 through the fourth quick connector 39, thereby continuing the steam-water heat exchange. In this way, the tube can be flexibly and conveniently disassembled and replaced when it is corroded or damaged, thereby reducing the adverse effects on the heat exchange work and making the device more flexible and convenient to use. The electric push rod 22 and the motor 23 can be of existing technology, and the motor 23 can be a conventional stepping motor with a brake function to realize rotation by a certain angle and position locking after rotation. The heat exchange straight pipe 26 and the heat exchange coil 40 can be made of copper or other materials with excellent heat conductivity.The first quick connector 31, the second quick connector 32, the third quick connector 37 and the fourth quick connector 39 are all of prior art, which are generally composed of a male head and a female head, only need to preset the male head or the female head on the first hose 8, the second hose 11, the third hose 12 and the fourth hose 13, and preset the matched female head or male head on the air inlet pipe 29, the air outlet pipe 30, the water inlet pipe 36 and the water outlet pipe 38, and then the pipes can be used together.

[0024] In the embodiment, the air inlet pipe 29 is matched with the first through hole 19, so that the air inlet pipe 29 can smoothly pass through the first through hole 19 to the outside of the cylinder body 14.

[0025] In the embodiment, the water outlet pipe 38 is matched with the second through hole 20, so that the water outlet pipe 38 can smoothly pass through the second through hole 20 to the outside of the cylinder body 14.

[0026] In the embodiment, the small-diameter end of the cover plate 27 is matched with the third through hole 21, so that the small-diameter end of the cover plate 27 can smoothly be inserted into the third through hole 21.

[0027] In the embodiment, the first through hole 19, the second through hole 20 and the third through hole 21 are all fixedly sleeved with the sealing ring 41, so as to enhance the sealing performance between the air inlet pipe 29 and the first through hole 19, between the water outlet pipe 38 and the second through hole 20 and between the cover plate 27 and the third through hole 21, and ensure that the heat exchange is not leaked, so that the heat exchange operation is smoothly carried out.

[0028] In the embodiment, the plug 25 is matched with the corresponding blind hole 28, so that the plug 25 is smoothly inserted into place, and the plug 25 and the blind hole 28 are fixedly connected to the cover plate 27.

[0029] The above only describes the preferred embodiments of the present application, and is not used to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A steam conversion hot water refrigeration and heating apparatus comprising a low pressure steam input line, a low pressure steam output line, a circulating hot water input line, a circulating hot water output line and a heat exchanger, characterised in that, The tail end of the low-pressure steam input pipeline is connected with a first low-pressure steam input branch pipeline and a second low-pressure steam input branch pipeline, and the second low-pressure steam input branch pipeline is fixedly connected with a first hose; the head end of the low-pressure steam output pipeline is connected with a first low-pressure steam output branch pipeline and a second low-pressure steam output branch pipeline, and the second low-pressure steam output branch pipeline is fixedly connected with a second hose; the tail end of the circulating hot water input pipeline is fixedly connected with a third hose; the head end of the circulating hot water output pipeline is fixedly connected with a fourth hose; the heat exchanger comprises a cylinder body, an annular air distribution pipe is fixedly arranged in the upper portion of the cylinder body, the top of the air distribution pipe is fixedly connected with the first low-pressure steam input branch pipeline, and a plurality of air outlet holes are arranged in the bottom of the air distribution pipe; a plurality of flow resistance rings are fixedly arranged on the inner side wall of the cylinder body below the air distribution pipe and are distributed in an up-down interval; the upper and lower surfaces of the flow resistance ring are both inclined surfaces; the side portion of the cylinder body below the lowermost flow resistance ring is fixedly connected with the first low-pressure steam output branch pipeline; a first through hole and a second through hole are arranged in the top of the cylinder body, and a third through hole is arranged in the bottom of the cylinder body; a plurality of electric push rods are embedded on the outer bottom of the cylinder body in a circumferential interval around the third through hole; the telescopic end of the electric push rod is downward and fixedly connected with a motor; the output shaft of the motor is downward and fixedly connected with an L-shaped limiting plate; the top of the vertical portion of the limiting plate is fixedly provided with a plug block; a heat exchange straight pipe is coaxially arranged in the cylinder body; the top of the heat exchange straight pipe abuts against the inner top of the cylinder body, and a reverse T-shaped cover plate is coaxially fixedly arranged at the bottom of the heat exchange straight pipe; the small-diameter end of the cover plate is inserted into the third through hole, the large-diameter end of the cover plate abuts against the outer bottom of the cylinder body, and a plurality of blind holes are arranged on the circumferential side of the end bottom; the vertical portion of the limiting plate abuts against the bottom of the large-diameter end of the cover plate, and the plug block is in one-to-one correspondence with the blind hole and is inserted into the blind hole; the top of the heat exchange straight pipe is fixedly connected with an air inlet pipe, and the bottom of the heat exchange straight pipe is fixedly connected with an air outlet pipe penetrating through the cover plate; the air inlet pipe extends out of the cylinder body through the first through hole and is connected with the first hose through a first quick connector; the air outlet pipe is connected with the second hose through a second quick connector; a plurality of flow resistance plates are arranged in the heat exchange straight pipe in an up-down interval; one end of the flow resistance plate is fixedly connected with the inner side wall of the heat exchange straight pipe, and a gap is left between the other end of the flow resistance plate and the inner side wall of the heat exchange straight pipe; the fixed ends of adjacent two flow resistance plates are opposite; an annular water collecting pipe is fixedly sleeved on the upper portion of the outer side of the heat exchange straight pipe, and an annular water distributing pipe is fixedly sleeved on the lower portion of the outer side of the heat exchange straight pipe; the bottom of the water distributing pipe is fixedly connected with a water inlet pipe penetrating through the cover plate; the water inlet pipe is connected with the third hose through a third quick connector; the top of the water collecting pipe is fixedly connected with a water outlet pipe; the water outlet pipe extends out of the cylinder body through the second through hole and is connected with the fourth hose through a fourth quick connector; the top of the water distributing pipe and the bottom of the water collecting pipe are fixedly connected through a plurality of serpentine heat exchange coils arranged in a circumferential interval; a gap is left between the heat exchange coil and the inner side of the flow resistance ring.

2. The steam conversion hot water refrigeration and heating apparatus according to claim 1, wherein, The air inlet pipe is matched with the first through hole.

3. The steam conversion hot water refrigeration and heating apparatus according to claim 1, wherein, The water outlet pipe is matched with the second through hole.

4. The steam conversion hot water refrigeration and heating apparatus according to claim 1, wherein, The small-diameter end of the cover plate is matched with the third through hole.

5. The steam conversion hot water refrigeration and heating apparatus according to claim 1, wherein, Sealing rings are fixedly sleeved on the first through hole, the second through hole and the third through hole.

6. The steam conversion hot water refrigeration and heating apparatus according to claim 1, wherein, The plug block is matched with the corresponding blind hole.

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