Waste heat insulation device for energy storage of air compressor of refrigeration station and insulation method thereof

Abstract

The application discloses a kind of air compressor energy storage waste heat insulation device of refrigeration station and its heat preservation method, it is related to heat exchanger related field, to solve the problem of existing technology in hot air flow output, water is heated, hot air temperature reduces, water and hot air temperature difference is small, heat exchange efficiency is low, so that the water near hot air input end and the water near hot air output end temperature has difference, air compressor waste heat cannot be fully utilized.The waste heat recycling pipeline includes first heat exchange circulation pipe, the upper pipe body of the front end of the first heat exchange circulation pipe forms first air inlet branch pipe, and the upper pipe body of the rear end of the first heat exchange circulation pipe forms first air outlet branch pipe;The waste heat recycling pipeline further includes second heat exchange circulation pipe, the lower pipe body of the rear end of the second heat exchange circulation pipe forms second air inlet branch pipe, and the lower pipe body of the front end of the second heat exchange circulation pipe forms second air outlet branch pipe.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heat exchangers, in particular to a waste heat insulation device for air compressor energy storage of a refrigeration station and an insulation method thereof. BACKGROUND

[0002] A refrigeration station is an indispensable important facility in modern industrial production and daily life. It transfers heat from the environment or specific objects to the outside environment through various refrigeration equipment and systems, thereby achieving the purpose of cooling or refrigeration. Refrigeration stations are widely used in air conditioning, freezing, refrigeration, chemical industry, medicine and other fields, and play a crucial role in maintaining production environment, ensuring product quality and improving living comfort. A refrigeration station is usually composed of multiple refrigeration units, cooling towers, water pumps, water storage tanks, control systems and other key equipment. Among them, the air compressor, as a key component in the refrigeration system, achieves cooling effect by compressing air to provide necessary power support for the refrigeration station. However, in the traditional refrigeration station system, the air compressor generates a large amount of waste heat during operation, which will cause energy waste if not properly utilized.

[0003] In order to improve the energy utilization efficiency of the refrigeration station and reduce energy consumption and environmental pollution, in recent years, the air compressor energy storage technology of the refrigeration station has attracted widespread attention and research. Air compressor energy storage technology is a technology that converts the waste heat and compression energy generated during the operation of the air compressor into other forms of energy (such as heat energy, electrical energy, etc.) and stores it. Through energy storage technology, the stored energy can be released when needed to provide additional power support for the refrigeration station, thereby improving the energy efficiency and stability of the entire system. In the air compressor energy storage technology of the refrigeration station, waste heat storage is an important way. It uses the waste heat generated during the operation of the air compressor to transfer heat to the heat storage medium (such as water, oil, etc.) through heat exchangers and other equipment to achieve temperature preservation. For example, the Chinese authorized patent with publication number CN 217029314 U (an environmental protection air compressor waste heat recycling structure) discloses that the water inside the filter is driven by the water pump to enter the environmental protection air compressor waste heat recycling device through the water delivery channel, and then the heat exchange through the heat exchange pipe is used to discharge the water from the water outlet for use.

[0004] However, the temperature difference between the initial stage of entering water and the entering hot air is large, and the heat exchange efficiency is high. When the hot air flows out, the water is heated, the temperature of the hot air decreases, and the temperature difference between the water and the hot air is small, resulting in low heat exchange efficiency. The water near the hot air input end and the water near the hot air output end have different temperatures, and the waste heat of the air compressor cannot be fully utilized. SUMMARY

[0005] The purpose of this invention is to provide a waste heat insulation device and its insulation method for air compressor energy storage in a refrigeration station, in order to solve the problem mentioned in the background art that when hot air is circulated and output, the water is heated, the temperature of the hot air decreases, the temperature difference between the water and the hot air is small, the heat exchange efficiency is low, and the water near the hot air input end has a temperature difference with the water near the hot air output end, so the waste heat of the air compressor cannot be fully utilized.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a waste heat insulation device for air compressor energy storage in a refrigeration station, comprising a waste heat reuse shell, a waste heat exchange chamber formed inside the waste heat reuse shell, a waste heat reuse pipeline provided inside the waste heat reuse shell, the waste heat reuse pipeline comprising a first heat exchange circulation pipe, the first heat exchange circulation pipe being composed of a first longitudinal connecting pipe, a first front heat exchange pipe and a first rear heat exchange pipe, both the first front heat exchange pipe and the first rear heat exchange pipe being composed of multiple first U-shaped pipes and multiple first U-shaped elbows, the upper part of the front end of the first heat exchange circulation pipe forming a first air inlet branch pipe, and the upper part of the rear end of the first heat exchange circulation pipe forming a first air outlet branch pipe;

[0007] The waste heat recovery pipeline also includes a second heat exchange circulation pipe, which is located inside the first heat exchange circulation pipe. The second heat exchange circulation pipe is composed of a second longitudinal connecting pipe, a second front heat exchange pipe, and a second rear heat exchange pipe. Both the second front heat exchange pipe and the second rear heat exchange pipe are composed of multiple second U-shaped pipes and multiple second U-shaped elbows. The lower rear part of the second heat exchange circulation pipe forms a second air inlet branch pipe, and the lower front part of the second heat exchange circulation pipe forms a second air outlet branch pipe.

[0008] The other ends of the first and second intake manifolds extend to the outside of the waste heat recovery housing and are connected to the intake distribution pipe. An intake manifold is installed in the middle of the outer side of the intake distribution pipe.

[0009] The other ends of the first and second exhaust pipes extend to the outside of the waste heat recovery housing and are connected to the exhaust manifold. An exhaust main is installed in the middle of the outer side of the exhaust manifold.

[0010] A water inlet pipe is installed at the upper end of the other side of the waste heat reuse shell. One end of the water inlet pipe extends into the waste heat exchange chamber. A first delivery pump is installed in the middle of the other side of the waste heat reuse shell. The input end of the first delivery pump is connected to a first drain pipe. One end of the first drain pipe extends into the lower end of the waste heat exchange chamber. The output end of the first delivery pump is connected to a second drain pipe.

[0011] The waste heat exchange chamber is provided with intermediate connecting plates at equal intervals from left to right. The intermediate connecting plates are provided with heat exchange circulation pipe through slots at the connection positions with the first heat exchange circulation pipe and the second heat exchange circulation pipe.

[0012] Preferably, the second conveying pump is installed at the lower end of the waste heat recycling shell, the input end of the second conveying pump is connected with the first conveying pipe, the other end of the first conveying pipe extends to one side of the inside of the waste heat heat exchange cavity, and the lower end of the waste heat recycling shell is provided with a driving water body flow pipeline.

[0013] Preferably, the upper end of the second conveying pipe extends to the inside lower end of the waste heat heat exchange cavity and is connected with the first water body pump-out pipe, the two ends of the first water body pump-out pipe are connected with the second water body pump-out pipe, the driving water body flow pipeline further comprises a third water body pump-out pipe, the third water body pump-out pipe is an annular pipe, the third water body pump-out pipe is located at the inside lower end of the waste heat heat exchange cavity, the third water body pump-out pipe is connected with the second water body pump-out pipe, and the upper end faces of the first water body pump-out pipe, the second water body pump-out pipe and the third water body pump-out pipe are all provided with water body pump-out hole grooves.

[0014] Preferably, the upper end of the waste heat recycling shell is provided with an upper pressure energy recycling unit, the upper pressure energy recycling unit comprises an upper shell, an intermediate partition plate is integrally connected to the inside of the upper shell, a driving cavity is formed in the inside of the upper shell along one side of the intermediate partition plate, an acceleration cavity is formed in the inside of the upper shell along the other side of the intermediate partition plate, and the diameter of the driving cavity is greater than that of the acceleration cavity.

[0015] Preferably, the other end of the gas outlet manifold is connected with a gas conveying pipe, the other end of the gas conveying pipe is connected with a first gas distribution pipe and a second gas distribution pipe, a first connecting hole groove is formed through the lower end of the driving cavity rear end of the upper shell, a second connecting hole groove is formed through the upper end of the driving cavity front end of the upper shell, the other end of the first gas distribution pipe is in communication with the first connecting hole groove, and the other end of the second gas distribution pipe is in communication with the second connecting hole groove.

[0016] Preferably, a middle driving shaft is rotatably connected in the upper shell through a bearing, a rectangular rotating blade is fixed in an annular array on the outside of the middle driving shaft along the inside of the driving cavity, an air hole groove is formed through the middle partition plate, and the driving cavity and the acceleration cavity are in communication through the inside of the air hole groove.

[0017] Preferably, rotating fan blades are installed at equal intervals on the outside of the middle driving shaft along the inside of the acceleration cavity, helical blades are fixed on the outside of the middle driving shaft along the outside of the acceleration cavity, an acceleration channel is formed between the upper shell, the middle driving shaft and the helical blades, an exhaust pipe is installed on the side of the upper shell away from the gas conveying pipe, and one end of the exhaust pipe is in communication with the inside of the acceleration channel.

[0018] Preferably, the intermediate connecting vertical plate is provided with a driving water body flow pipe through hole corresponding to the position of the driving water body flow pipe, and a water body communication groove is provided between the through holes of each column of the heat exchange circulation pipes.

[0019] Preferably, the waste heat recycling shell is provided with a waste heat insulation interlayer.

[0020] A heat preservation method comprises the following steps:

[0021] Step one: water enters the waste heat exchange cavity through the water inlet pipe; the waste heat air of the air compressor enters the air inlet distribution pipe through the air inlet main pipe, enters the first heat exchange circulation pipe and the second heat exchange circulation pipe through the first air inlet branch pipe and the second air inlet branch pipe respectively, and then flows out through the first air outlet branch pipe and the second air outlet branch pipe, and is discharged through the air outlet main pipe after being collected through the air outlet collection pipe;

[0022] Step two: in step one, the air entering through the first air inlet branch pipe enters the waste heat exchange cavity from the upper end of the front end of one side, exchanges heat with the water body, and then flows from top to bottom to the lower end of the other side of the front end, and then flows to the lower end of the other side of the rear end, and then flows from bottom to top to the upper end of one side of the rear end, and is discharged through the first air outlet branch pipe; the air entering through the second air inlet branch pipe enters the waste heat exchange cavity from the lower end of one side of the rear end, exchanges heat with the water body, and then flows from bottom to top to the upper end of one side of the rear end, and then flows to the upper end of one side of the front end, and then flows from top to bottom to the lower end of one side of the front end, and is discharged through the second air outlet branch pipe;

[0023] Step three: the second delivery pump draws the water in the waste heat exchange cavity through the first drain pipe, and then delivers the water to the first water body pump-out pipe, the second water body pump-out pipe and the third water body pump-out pipe through the second delivery pipe, and then reenters the waste heat exchange cavity through the water body pump-out holes of the first water body pump-out pipe, the second water body pump-out pipe and the third water body pump-out pipe;

[0024] Step four: the first delivery pump draws the water in the waste heat exchange cavity through the first drain pipe, and then delivers the water to the outside through the second drain pipe.

[0025] Compared with the prior art, the present application has the following advantages:

[0026] (1) In the application, the water body enters the waste heat exchange cavity through the water inlet pipe; the air entering the first air inlet sub-pipe enters the waste heat exchange cavity from the upper end of the front end of one side of the waste heat exchange cavity and exchanges heat with the water body, and then flows from top to bottom to the lower end of the other side of the front end, and then flows to the lower end of the other side of the rear end, and then flows from bottom to top to the upper end of the other side of the rear end and is discharged through the first air outlet sub-pipe; the air entering the second air inlet sub-pipe enters the waste heat exchange cavity from the lower end of the rear end of one side of the middle and exchanges heat with the water body, and then flows from bottom to top to the upper end of the other side of the middle, and then flows to the upper end of the other side of the front end of the middle, and then flows from top to bottom to the lower end of the other side of the front end of the middle and is discharged through the second air outlet sub-pipe. This design makes the upper end of the water body and the lower end of the water body, or the front end of the water body and the rear end of the water body, have hot air with a higher temperature in contact with the water body, so that the temperature difference between the water body and the hot air is increased, thereby improving the heat exchange efficiency, solving the problem that when the hot air flows out, the water body is heated, the temperature of the hot air is reduced, the temperature difference between the water body and the hot air is small, the heat exchange efficiency is low, and the water body near the hot air input end and the water body near the hot air output end have a temperature difference, and the waste heat of the air compressor cannot be fully utilized.

[0027] (2) In the application, through the design of the air inlet sub-pipe and the air outlet sub-pipe layout, the airflow in the waste heat exchange cavity realizes multi-path and multi-direction flow, effectively prolongs the contact time of the gas and the water body, and further improves the heat exchange effect.

[0028] (3) In the application, the second delivery pump draws the water body on one side of the inside of the waste heat exchange cavity through the first delivery pipe, and delivers it to the first water body pump-out pipe, the second water body pump-out pipe and the third water body pump-out pipe through the second delivery pipe, and then reenters the waste heat exchange cavity through the water body pump-out hole slot, thereby ensuring the uniform distribution and efficient circulation of the water body in the waste heat exchange cavity, enhancing the heat preservation performance and reducing the energy consumption.

[0029] (4) In the application, the heated hot air is delivered into the first air inlet sub-pipe and the second air inlet sub-pipe through the air outlet delivery pipe, and drives the driving whole formed by the plurality of rectangular rotating leaves by beating the upper and lower ends of the rectangular rotating leaves, and through the synergistic effect of the middle driving shaft, the rectangular rotating leaves, the rotating fan leaves and the spiral blades, the heated hot air in the driving cavity is extracted through the acceleration channel, so that the heated hot air forms a rotating trend and is accelerated through the air outlet pipe, the pressure energy of the heated hot air is converted into mechanical energy, the secondary utilization of energy is realized, and the overall energy efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] Figure 1 It is a front view of the overall structure of the air compressor energy storage waste heat insulation device of the refrigeration station.

[0031] Figure 2It is a refrigeration station air compressor energy storage waste heat insulation device for the overall structure of the lower angle view schematic diagram of the application;

[0032] Figure 3 It is a refrigeration station air compressor energy storage waste heat insulation device for the side view of the application;

[0033] Figure 4 It is a refrigeration station air compressor energy storage waste heat insulation device for the front view of the application;

[0034] Figure 5 It is a refrigeration station air compressor energy storage waste heat insulation device for the top view of the application;

[0035] Figure 6 It is a refrigeration station air compressor energy storage waste heat insulation device for the A-A section view of the application;

[0036] Figure 7 It is a refrigeration station air compressor energy storage waste heat insulation device for the internal pipeline layout section view of the application;

[0037] Figure 8 It is a refrigeration station air compressor energy storage waste heat insulation device for the main section view of the upper pressure energy recycling unit of the application;

[0038] Figure 9 It is a refrigeration station air compressor energy storage waste heat insulation device for the side section view of the upper pressure energy recycling unit of the application;

[0039] Figure 10 It is a refrigeration station air compressor energy storage waste heat insulation device for the structure schematic diagram of the waste heat insulation utilization pipeline of the application;

[0040] Figure 11 It is a refrigeration station air compressor energy storage waste heat insulation device for the structure schematic diagram of the lower driven water body flow pipeline of the application;

[0041] Figure 12 It is a refrigeration station air compressor energy storage waste heat insulation device for the structure schematic diagram of the intermediate connection vertical plate of the application.

[0042] In the figure: 1, waste heat recycling shell; 2, waste heat insulation layer; 3, waste heat exchange cavity; 4, waste heat recycling pipeline; 5, air inlet manifold; 6, air inlet distribution pipe; 7, first air inlet sub-pipe; 8, second air inlet sub-pipe; 9, first heat exchange circulation pipe; 10, air outlet manifold; 11, air outlet manifold; 12, first air outlet sub-pipe; 13, second air outlet sub-pipe; 14, second heat exchange circulation pipe; 15, intermediate connecting vertical plate; 16, heat exchange circulation pipe through hole groove; 17, driving water body flow pipe through hole groove; 18, water body communication groove; 19, protruding fin; 20, water inlet pipe; 21, first delivery pump; 22, first drain pipe; 23, second drain pipe; 24, second delivery pump; 25, first delivery pipe; 26, driving water body flow pipe; 27, second delivery pipe; 28, first water body pump-out pipe; 29, second water body pump-out pipe; 30, third water body pump-out pipe; 31, water body pump-out hole groove; 32, air outlet delivery pipe; 33, first air inlet sub-pipe; 34, second air inlet sub-pipe; 35, upper pressure energy recycling unit; 36, upper shell; 37, driving cavity; 38, acceleration cavity; 39, intermediate partition plate; 40, first connecting hole groove; 41, second connecting hole groove; 42, intermediate driving shaft; 43, rectangular rotating blade; 44, air hole groove; 45, rotating fan blade; 46, spiral blade; 47, acceleration channel; 48, exhaust pipe. DETAILED DESCRIPTION

[0043] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all.

[0044] Please refer to Figures 1-12 The present application provides an embodiment of a waste heat insulation device for air compressor energy storage of a refrigeration station, which comprises a waste heat recycling shell 1, a waste heat exchange cavity 3 formed inside the waste heat recycling shell 1, a waste heat recycling pipeline 4, a water body circulation system, an intermediate connecting vertical plate, and a pressure energy recycling unit. A waste heat insulation layer 2 is formed on the inner wall of the waste heat recycling shell 1, which effectively reduces heat loss and improves the insulation performance of the device.

[0045] (1) Waste heat recycling pipeline 4 design:

[0046] The waste heat recycling pipeline 4 comprises a first heat exchange circulation pipe 9 and a second heat exchange circulation pipe 14. The first heat exchange circulation pipe 9 is composed of a first longitudinal communication pipe, a first front heat exchange pipe, and a first rear heat exchange pipe. The first front heat exchange pipe and the first rear heat exchange pipe are each composed of a plurality of first U-shaped pipes and a plurality of first U-shaped bends, forming a complex and efficient heat exchange path. The front end upper part of the first heat exchange circulation pipe 9 forms a first air inlet sub-pipe 7, and the rear end upper part forms a first air outlet sub-pipe 12.

[0047] The second heat exchange circulation pipe 14 is located inside the first heat exchange circulation pipe 9 and has a similar structure, which is composed of a second longitudinal communication pipe, a second front heat exchange pipe and a second rear heat exchange pipe, and the second front heat exchange pipe and the second rear heat exchange pipe are each composed of a plurality of second U-shaped pipes and a plurality of second U-shaped bends; but the length of the longitudinal communication pipe is smaller, so that the size is smaller, and the lower part of the rear end of the second heat exchange circulation pipe 14 forms a second air inlet branch pipe 8, and the lower part of the front end forms a second air outlet branch pipe 13.

[0048] This design makes the upper end and the lower end of the water body, or the front end and the rear end of the water body, have hot air with higher temperature contacting the water body, so that the temperature difference between the water body and the hot air is enlarged, thereby improving the heat exchange efficiency. And by optimizing the airflow path, the contact time of the gas and the water body is prolonged, further improving the heat exchange effect and reducing the heat loss.

[0049] The other end of the first air inlet branch pipe 7 and the second air inlet branch pipe 8 extends to the outside of the waste heat recycling shell 1 and is connected with an air inlet distribution pipe 6, and the middle of the outer side of the air inlet distribution pipe 6 is installed with an air inlet main pipe 5. The other end of the first air outlet branch pipe 12 and the second air outlet branch pipe 13 extends to the outside of the waste heat recycling shell 1 and is connected with an air outlet collection pipe 11, and the middle of the outer side of the air outlet collection pipe 11 is installed with an air outlet main pipe 10.

[0050] (2) Water body circulation system:

[0051] The upper end of the other side of the waste heat recycling shell 1 is installed with a water inlet pipe 20, one end of the water inlet pipe 20 extends to the inside of the waste heat exchange cavity 3, and is used to introduce external water body. The middle of the other side of the waste heat recycling shell 1 is installed with a first conveying pump 21, and the first conveying pump 21 draws the water body at the lower end inside the waste heat exchange cavity 3 through a first drainage pipe 22, and then conveys it outward through a second drainage pipe 23.

[0052] The lower end of the waste heat recycling shell 1 is installed with a second conveying pump 24, the second conveying pump 24 draws the water body at one side inside the waste heat exchange cavity 3 through a first conveying pipe 25, and then conveys it to the first water body pump-out pipe 28, the second water body pump-out pipe 29 and the third water body pump-out pipe 30 through a second conveying pipe 27, and then reenters the waste heat exchange cavity 3 through the water body pump-out hole slot 31 opened on the upper end surface of the first water body pump-out pipe 28, the second water body pump-out pipe 29 and the third water body pump-out pipe 30, which can disturb the internal water body before it is discharged, so that the water bodies in different temperature areas flow under the disturbance, so that the water body temperature is relatively consistent, and the output water body temperature is more stable. The intelligent design of the water body circulation system ensures the uniform distribution and efficient circulation of the water body in the waste heat exchange cavity 3, enhances the heat preservation performance, and reduces the energy consumption.

[0053] A heat preservation method, comprising the following steps:

[0054] Step one: water enters the waste heat exchange cavity 3 through the water inlet pipe 20; the waste heat air of the air compressor enters the air inlet distribution pipe 6 through the air inlet main pipe 5, enters the first heat exchange circulation pipe 9 and the second heat exchange circulation pipe 14 through the first air inlet branch pipe 7 and the second air inlet branch pipe 8 respectively, and then flows out through the first air outlet branch pipe 12 and the second air outlet branch pipe 13 respectively, and is discharged through the air outlet main pipe 10 after being collected through the air outlet collection pipe 11;

[0055] Step two: in step one, the air entering the first air inlet branch pipe 7 enters the waste heat exchange cavity 3 from the upper end of the front end of one side and exchanges heat with the water body, flows from top to bottom to the lower end of the other side of the front end, and then flows to the lower end of the other side of the rear end, and then flows from top to bottom to the upper end of the other side of the rear end, and is discharged through the first air outlet branch pipe 12; the air entering the second air inlet branch pipe 8 enters the waste heat exchange cavity 3 from the lower end of the rear end of the middle side and exchanges heat with the water body, flows from bottom to top to the upper end of the rear end of the middle side, and then flows to the upper end of the front end of the middle side, and then flows from top to bottom to the lower end of the front end of the middle side, and is discharged through the second air outlet branch pipe 13;

[0056] Step three: the second delivery pump 24 draws the water in the waste heat exchange cavity 3 through the first drain pipe 22, and delivers it to the first water body pump-out pipe 28, the second water body pump-out pipe 29 and the third water body pump-out pipe 30 through the second delivery pipe 27, and reenters the waste heat exchange cavity 3 through the water body pump-out hole 31 on the first water body pump-out pipe 28, the second water body pump-out pipe 29 and the third water body pump-out pipe 30;

[0057] Step four: the first delivery pump 21 draws the water in the waste heat exchange cavity 3 through the first drain pipe 22, and then delivers it outward through the second drain pipe 23.

[0058] (3) Middle connecting vertical plate 15 design:

[0059] The middle connecting vertical plate 15 is arranged equidistantly from left to right in the waste heat exchange cavity 3, and the heat exchange circulation pipe through hole 16 is arranged through the position where the middle connecting vertical plate 15 is connected with the first heat exchange circulation pipe 9 and the second heat exchange circulation pipe 14, which is used for fixing and supporting the heat exchange circulation pipe. The driving water body flow pipe through hole 17 is arranged on the middle connecting vertical plate 15 corresponding to the driving water body flow pipe 26, the water body communication groove 18 is arranged between each column of heat exchange circulation pipe through holes 16, and the arrayed fixed protruding fin 19 is arranged on both sides. The protruding fin 19 increases the heat exchange area.

[0060] (4) Pressure energy recycling unit:

[0061] The upper end of the waste heat recycling shell 1 is provided with an upper pressure energy recycling unit 35. The upper pressure energy recycling unit 35 comprises an upper shell 36, an intermediate partition plate 39, a driving cavity 37 and an acceleration cavity 38. The intermediate partition plate 39 is integrally connected in the middle of the interior of the upper shell 36. The driving cavity 37 is formed in the side of the intermediate partition plate 39 in the interior of the upper shell 36. The acceleration cavity 38 is formed in the other side of the intermediate partition plate 39 in the interior of the upper shell 36. The diameter of the driving cavity 37 is greater than the diameter of the acceleration cavity 38.

[0062] The other end of the gas outlet manifold 10 is connected with a gas outlet conveying pipe 32. The other end of the gas outlet conveying pipe 32 is connected with a first gas conveying branch pipe 33 and a second gas conveying branch pipe 34. The upper end of the upper shell 36 along the rear end of the driving cavity 37 is provided with a first connecting hole slot 40. The upper end of the upper shell 36 along the front end of the driving cavity 37 is provided with a second connecting hole slot 41. The other end of the first gas conveying branch pipe 33 is communicated with the first connecting hole slot 40. The other end of the second gas conveying branch pipe 34 is communicated with the second connecting hole slot 41.

[0063] The intermediate driving shaft 42 is rotatably connected in the interior of the upper shell 36 through a bearing. The rectangular rotating leaves 43 are fixed in the annular array in the interior of the driving cavity 37 outside the intermediate driving shaft 42. The air hole slot 44 is provided in the upper intermediate partition plate 39. The driving cavity 37 and the acceleration cavity 38 are communicated through the interior of the air hole slot 44. The rotating fan leaves 45 are equidistantly installed on the inner side of the interior of the acceleration cavity 38 outside the intermediate driving shaft 42. The helical blades 46 are fixed on the outer side of the interior of the acceleration cavity 38 outside the intermediate driving shaft 42. The acceleration channel 47 is formed between the upper shell 36, the intermediate driving shaft 42 and the helical blades 46. The exhaust pipe 48 is installed on the side of the upper shell 36 away from the gas outlet conveying pipe 32. One end of the exhaust pipe 48 is communicated with the interior of the acceleration channel 47.

[0064] A pressure energy recycling and acceleration method comprises the following steps:

[0065] Step one: The heat-exchanged hot air is conveyed to the first gas conveying branch pipe 33 and the second gas conveying branch pipe 34 through the gas outlet conveying pipe 32, and is input to the driving cavity 37 through the first connecting hole slot 40 and the second connecting hole slot 41. The rectangular rotating leaves 43 at the upper and lower ends are respectively hit by the hot air to drive the driving whole formed by the plurality of rectangular rotating leaves 43 to rotate, so that the intermediate driving shaft 42 is driven to rotate.

[0066] In step two, the rotating fan blade 45 is driven to rotate, the heat-exchanged hot air in the driving cavity 37 is overflowed to the accelerating cavity 38 through the vent slot 44, the rotating fan blade 45 and the helical blade 46 cooperate to convert the pressure energy of the heat-exchanged hot air into mechanical energy; the rotation of the rotating fan blade 45 extracts the heat-exchanged hot air in the driving cavity 37 to the other side, the heat-exchanged hot air is extracted through the accelerating channel 47, and the rotation of the helical blade 46 makes the heat-exchanged hot air form a rotating trend and accelerate through the exhaust pipe 48 to be discharged, so that the secondary utilization of energy is realized and the overall energy efficiency is improved.

[0067] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the application can be implemented in other particular forms without departing from the spirit or essential characteristics of the application. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the above description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No reference signs in the claims shall be construed as limiting the claim being referenced.

Claims

1. A waste heat insulation device for air compressor energy storage of a refrigeration station, comprising a waste heat recycling shell (1), a waste heat heat exchange cavity (3) is formed inside the waste heat recycling shell (1), characterized in that: The waste heat recycling shell (1) is provided with a waste heat recycling pipeline (4), the waste heat recycling pipeline (4) comprises a first heat exchange circulating pipe (9), the first heat exchange circulating pipe (9) is composed of a first longitudinal communication pipe, a first front heat exchange pipe and a first rear heat exchange pipe, the first front heat exchange pipe and the first rear heat exchange pipe are both composed of a plurality of first U-shaped pipes and a plurality of first U-shaped elbows, and the upper pipe body of the front end of the first heat exchange circulating pipe (9) forms a first air inlet branch pipe (7), and the upper pipe body of the rear end of the first heat exchange circulating pipe (9) forms a first air outlet branch pipe (12); The waste heat recycling pipeline (4) further comprises a second heat exchange circulating pipe (14), the second heat exchange circulating pipe (14) is located within the internal range of the first heat exchange circulating pipe (9), the second heat exchange circulating pipe (14) is composed of a second longitudinal communication pipe, a second front heat exchange pipe and a second rear heat exchange pipe, the second front heat exchange pipe and the second rear heat exchange pipe are both composed of a plurality of second U-shaped pipes and a plurality of second U-shaped elbows, the lower pipe body of the rear end of the second heat exchange circulating pipe (14) forms a second air inlet branch pipe (8), and the lower pipe body of the front end of the second heat exchange circulating pipe (14) forms a second air outlet branch pipe (13); The other ends of the first air inlet branch pipe (7) and the second air inlet branch pipe (8) extend to the outside of the waste heat recycling shell (1) and are jointly connected with an air inlet distribution pipe (6), and the intermediate side of the outer side of the air inlet distribution pipe (6) is provided with an air inlet main pipe (5); The other ends of the first air outlet branch pipe (12) and the second air outlet branch pipe (13) extend to the outside of the waste heat recycling shell (1) and are jointly connected with an air outlet collection pipe (11), and the intermediate side of the outer side of the air outlet collection pipe (11) is provided with an air outlet main pipe (10); The upper end of the other side of the waste heat recycling shell (1) is provided with a water inlet pipe (20), one end of the water inlet pipe (20) extends into the waste heat exchange cavity (3), the intermediate side of the other side of the waste heat recycling shell (1) is provided with a first conveying pump (21), the input end of the first conveying pump (21) is connected with a first drainage pipe (22), one end of the first drainage pipe (22) extends to the lower end inside the waste heat exchange cavity (3), and the output end of the first conveying pump (21) is connected with a second drainage pipe (23); The intermediate connecting vertical plates (15) are equidistantly arranged inside the waste heat exchange cavity (3) from left to right, and heat exchange circulating pipe through hole grooves (16) are formed in the intermediate connecting vertical plates (15) and penetrate the positions connected with the first heat exchange circulating pipe (9) and the second heat exchange circulating pipe (14).

2. A waste heat insulation device for air compressor energy storage of a refrigeration station according to claim 1, characterized in that: The lower end of the waste heat recycling shell (1) is provided with a second conveying pump (24), the input end of the second conveying pump (24) is connected with a first conveying pipe (25), the other end of the first conveying pipe (25) extends to one side inside the waste heat exchange cavity (3), and the lower end of the waste heat recycling shell (1) is provided with a driving water body flow pipeline (26), the driving water body flow pipeline (26) comprises a second conveying pipe (27), and the second conveying pipe (27) is connected with the output end of the second conveying pump (24).

3. A waste heat insulation device for air compressor energy storage of a refrigeration station according to claim 2, characterized in that: The upper end of the second conveying pipe (27) extends to the inner lower end of the waste heat exchange cavity (3) and is connected with a first water body pump-out pipe (28), both ends of the first water body pump-out pipe (28) are connected with a second water body pump-out pipe (29), the driving water body flow pipe (26) further comprises a third water body pump-out pipe (30), the third water body pump-out pipe (30) is an annular pipe, the third water body pump-out pipe (30) is located at the inner lower end of the waste heat exchange cavity (3), the third water body pump-out pipe (30) is connected with the second water body pump-out pipe (29), and the upper end faces of the first water body pump-out pipe (28), the second water body pump-out pipe (29) and the third water body pump-out pipe (30) are all provided with water body pump-out hole grooves (31).

4. A waste heat insulation device for air compressor energy storage of a refrigeration station according to claim 3, characterized in that: The upper end of the waste heat recycling shell (1) is provided with an upper pressure energy recycling unit (35), the upper pressure energy recycling unit (35) comprises an upper shell (36), a middle partition plate (39) is integrally connected to the middle of the inner portion of the upper shell (36), a driving cavity (37) is formed in the inner portion of the upper shell (36) on one side of the middle partition plate (39), an acceleration cavity (38) is formed in the inner portion of the upper shell (36) on the other side of the middle partition plate (39), and the diameter of the driving cavity (37) is greater than that of the acceleration cavity (38).

5. A waste heat insulation device for air compressor energy storage of a refrigeration station according to claim 4, characterized in that: The other end of the air outlet main pipe (10) is connected with an air outlet conveying pipe (32), the other end of the air outlet conveying pipe (32) is connected with a first air conveying branch pipe (33) and a second air conveying branch pipe (34), a first connecting hole groove (40) is formed through the lower end of the rear end of the driving cavity (37) on the upper shell (36), a second connecting hole groove (41) is formed through the upper end of the front end of the driving cavity (37) on the upper shell (36), the other end of the first air conveying branch pipe (33) is in communication with the first connecting hole groove (40), and the other end of the second air conveying branch pipe (34) is in communication with the second connecting hole groove (41).

6. A waste heat insulation device for air compressor energy storage of a refrigeration station according to claim 5, characterized in that: A middle driving shaft (42) is rotatably connected in the upper shell (36) through a bearing, a rectangular rotating blade (43) is fixed in an annular array on the outer portion of the middle driving shaft (42) along the inner portion of the driving cavity (37), an air vent groove (44) is formed through the middle partition plate (39), and the driving cavity (37) and the acceleration cavity (38) are in communication through the inner portion of the air vent groove (44).

7. A waste heat insulation device for air compressor energy storage of a refrigeration station according to claim 6, characterized in that: Rotating fan blades (45) are installed on the outer portion of the middle driving shaft (42) at equal intervals on the inner side of the inner portion of the acceleration cavity (38), spiral blades (46) are fixed on the outer portion of the middle driving shaft (42) on the outer side of the inner portion of the acceleration cavity (38), an acceleration channel (47) is formed between the upper shell (36), the middle driving shaft (42) and the spiral blades (46), and an exhaust pipe (48) is installed on the side, away from the air outlet conveying pipe (32), of the upper shell (36), one end of the exhaust pipe (48) is in communication with the inner portion of the acceleration channel (47).

8. A waste heat insulation device for air compressor energy storage of a refrigeration station according to claim 2, characterized in that: The intermediate connecting vertical plate (15) is provided with a driving water body flow pipe through hole (17) at a position corresponding to the driving water body flow pipe (26), and a water body communication groove (18) is provided between the heat exchange circulation pipe through hole (16) of each column on the intermediate connecting vertical plate (15).

9. A waste heat insulation device for air compressor energy storage of a refrigeration station according to claim 8, characterized in that: The waste heat recycling shell (1) is provided with a waste heat insulation layer (2) in the inner wall.

10. A heat preservation method based on the waste heat preservation device for energy storage of an air compressor of a refrigeration station according to claim 3, characterized in that, The method comprises the following steps: Step one: water enters the waste heat exchange cavity (3) through the water inlet pipe (20); the waste heat air of the air compressor enters the air inlet distribution pipe (6) through the air inlet main pipe (5), and then enters the first heat exchange circulation pipe (9) and the second heat exchange circulation pipe (14) through the first air inlet branch pipe (7) and the second air inlet branch pipe (8) respectively, and then flows out through the first air outlet branch pipe (12) and the second air outlet branch pipe (13) respectively, and is discharged through the air outlet main pipe (10) after being collected through the air outlet collection pipe (11); Step two: in step one, the air entering the first air inlet branch pipe (7) enters the waste heat exchange cavity (3) from the upper end of the front end of one side, exchanges heat with the water body, and then flows from the lower end of the other side of the front end to the lower end of the other side of the rear end, and then flows from the upper end of the other side of the rear end to the lower end of the other side of the front end, and is discharged through the first air outlet branch pipe (12); the air entering the second air inlet branch pipe (8) enters the waste heat exchange cavity (3) from the lower end of the rear end of the middle side, exchanges heat with the water body, and then flows from the upper end of the middle side of the rear end to the upper end of the front side of the middle, and then flows from the lower end of the front side of the middle to the lower end of the rear side of the middle, and is discharged through the second air outlet branch pipe (13); Step three: the second delivery pump (24) draws the water in the waste heat exchange cavity (3) through the first drain pipe (22), and then delivers the water to the first water body pump-out pipe (28), the second water body pump-out pipe (29) and the third water body pump-out pipe (30) through the second delivery pipe (27), and then reenters the waste heat exchange cavity (3) through the water body pump-out hole (31) on the first water body pump-out pipe (28), the second water body pump-out pipe (29) and the third water body pump-out pipe (30); Step four: the first delivery pump (21) draws the water in the waste heat exchange cavity (3) through the first drain pipe (22), and then delivers the water to the outside through the second drain pipe (23).

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