Compressed air waste heat recoverer
By employing a spiral-wound air pipe and drain pipe structure in the compressed air waste heat recovery unit, combined with cold water absorption and insulation layer design, the problem of poor heat absorption in existing technologies is solved, achieving efficient heat recovery and air purification.
Patent Information
- Application Number
- CN202520026462.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-06
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-01-06
AI Technical Summary
Existing compressed air waste heat recovery devices have poor heat absorption performance for the same casing length, and there is an urgent need to improve them.
A compressed air waste heat recovery device is designed. By setting multiple sets of spirally wound air pipes and drain pipes inside the housing, cold water is used to absorb the heat in the compressed air. Combined with an insulation layer and an oil-water separator, the heat absorption efficiency is improved.
It significantly improves the absorption of gas heat within the same shell length and enhances the cleanliness of the exhaust air.
Smart Images
Figure CN223856217U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The application relates to the technical field of compressed air, in particular to a compressed air waste heat recovery device. BACKGROUND
[0002] During use, the air compressor used in a factory is compressed, the volume is reduced, the molecular activity is intensified, the collision of molecules causes the increase of molecular motion energy, and the temperature of the gas is increased.
[0003] At present, in order to recycle the heat in the gas, the compressed gas is discharged into a waste heat recovery device after being compressed by the air compressor, cold water is continuously introduced into the compressed gas waste heat recovery device, the heat in the compressed gas is absorbed by the cold water, and the purpose of energy saving and emission reduction is achieved.
[0004] However, the conventional compressed gas waste heat recovery device has poor heat absorption effect on the heat in the air under the condition of the same shell length, and therefore it is urgent to design a device for improving the heat absorption effect on the heat in the air under the condition of the same shell length. CONTENT OF THE INVENTION
[0005] In order to improve the heat absorption effect on the heat in the air under the condition of the same shell length, the application provides a compressed air waste heat recovery device.
[0006] The application provides a compressed air waste heat recovery device, which adopts the following technical scheme:
[0007] A compressed air waste heat recovery device comprises a shell connected with a pipeline for transporting compressed air, a drain pipe is arranged on the axis of the shell, a plurality of through holes are arranged on the side wall of the drain pipe at intervals, a plurality of groups of air pipes connected with the inside of the pipeline are arranged in the shell, the plurality of groups of air pipes are spirally wound on the outer side wall of the drain pipe, and a heat absorption assembly is arranged on the shell to facilitate the continuous introduction of cold water into the drain pipe and the discharge of the water after absorbing heat out of the shell.
[0008] By adopting the above technical scheme, the compressed air discharged from the pipeline is distributed into the plurality of groups of air pipes, the plurality of groups of air pipes are spirally wound on the outer side wall of the drain pipe, the flow path of the compressed air is increased, the heat absorption assembly continuously discharges cold water into the drain pipe, then the cold water is discharged from the through holes into the gap between the shell and the air pipes, the cold water absorbs the heat in the compressed air in the air pipes, and finally the cold water is discharged out of the shell by the heat absorption assembly, so as to improve the heat absorption effect on the heat in the air under the condition of the same shell length.
[0009] Further, an end head connected with the inside of the plurality of groups of air pipes is arranged on the side of the shell away from the pipeline, and the end head comprises:
[0010] An exhaust pipe in communication with the plurality of air pipes and configured to exhaust the compressed air in the plurality of air pipes after being collected;
[0011] An end disc arranged in the shell and abutting against an end face on a side of the exhaust pipe close to the pipeline, the plurality of air pipes passing through the end disc and entering the exhaust pipe, an exhaust cavity in communication with the exhaust pipe being formed in the end disc, and the heat absorption assembly continuously discharging cold water into the exhaust cavity.
[0012] By adopting the above technical solutions, the end disc fixes the plurality of air pipes, and then the compressed air in the air pipes is collected and discharged into the exhaust pipe, the cold water is discharged into the exhaust cavity and then into the gap between the shell and the plurality of air pipes from inside to outside through the plurality of through holes.
[0013] Further, a plurality of drainage holes are formed in the end disc and configured to discharge the cold water in the exhaust cavity into the gap between the shell and the plurality of air pipes.
[0014] By adopting the above technical solutions, the drainage holes are located on a side of the end disc away from the exhaust pipe and the side wall, the cold water in the exhaust cavity is discharged into the gap between the shell and the air pipes through the drainage holes, and then the cold water flows from the side of the end disc to the side close to the pipeline.
[0015] Further, the plurality of air pipes are spirally wound with a plurality of layers outside the exhaust pipe.
[0016] By adopting the above technical solutions, the plurality of layers of air pipes are spirally wound outside the exhaust pipe, thereby increasing the contact area between the exhaust pipe and the cold water and improving the heat absorption effect of the cold water on the heat in the compressed air.
[0017] Further, the heat absorption assembly comprises:
[0018] A water inlet pipe arranged on an end of the shell away from the pipeline and in communication with the exhaust cavity, the water inlet pipe being configured to continuously supply cold water and absorb the heat emitted by the air pipes;
[0019] A water outlet pipe arranged on an end of the shell close to the pipeline and configured to discharge the water between the shell and the air pipes.
[0020] By adopting the above technical solutions, the water inlet pipe continuously discharges cold water into the exhaust cavity, thereby absorbing the heat emitted by the plurality of air pipes, the water after absorbing the heat is discharged from the water outlet pipe, and thereby the heat in the compressed air in the shell is recycled and utilized.
[0021] Further, an oil-water separator is arranged on the exhaust pipe and configured to separate and discharge the condensed water from the compressed air in the exhaust pipe.
[0022] By adopting the technical scheme, the cold water in the shell absorbs the heat of the compressed air in the air pipe, so that the water molecules in the compressed air are more likely to condense into water beads, the water in the compressed air is separated and discharged through the oil-water separator, and the cleanliness of the discharged compressed air is improved.
[0023] Further, the shell is provided with a heat preservation layer outside, which is used to reduce the heat dissipation probability in the shell.
[0024] By adopting the technical scheme, the heat preservation layer is used to reduce the heat dissipation probability in the shell, so that the heat dissipated in the air pipe is absorbed by the cold water.
[0025] Further, the shell is provided with a detection table, which is used to detect the liquid pressure value and temperature value in the shell.
[0026] By adopting the technical scheme, the detection table is used to detect the liquid pressure value and temperature value in the shell, so that the condition in the shell can be monitored in real time.
[0027] In summary, the present application has at least one of the following beneficial technical effects:
[0028] The compressed air discharged from the pipeline is distributed to multiple groups of air pipes through the distribution disc, and is spirally wound on the outer wall of the drain pipe through the multiple groups of air pipes, so that the flow path of the compressed air is improved, the inlet pipe continuously discharges cold water into the drain cavity and the drain pipe, and then the cold water is discharged into the gap between the shell and the air pipe from the drain pipe, the through hole and the drain hole, the cold water absorbs the heat in the compressed air in the air pipe, and finally the cold water is discharged from the shell through the outlet pipe, so that the heat absorption effect on the gas is improved under the condition of the same shell length. BRIEF DESCRIPTION OF DRAWINGS
[0029] Figure 1 is a waste heat recovery device structure schematic diagram of the present application;
[0030] Figure 2 is a waste heat recovery device structure schematic diagram of the present application, in which the heat preservation layer and the shell are cut open;
[0031] Figure 3 is a waste heat recovery device structure half-section structure schematic diagram of the present application, in which only one side close to the end is shown.
[0032] Reference signs: 1, shell; 11, air pipe; 2, distribution disc; 3, drain pipe; 4, end; 41, discharge pipe; 42, end disc; 421, drain cavity; 422, drain hole; 5, heat absorption assembly; 51, inlet pipe; 52, outlet pipe; 6, heat preservation layer; 7, detection table; 8, pipeline; 9, oil-water separator. DETAILED DESCRIPTION
[0033] The application will be further described below with reference to the accompanying drawings. Figures 1-3 The application will be further described below with reference to the accompanying drawings.
[0034] The application discloses a compressed air waste heat recovery device.
[0035] Referring to Figure 1 and Figure 2 A compressed air waste heat recovery device, comprising a shell 1 communicated with a pipeline 8 conveying compressed air, the shell 1 is provided with a drain pipe 3 on the axis, a plurality of through holes are arranged on the side wall of the drain pipe 3 at intervals, a plurality of groups of air pipes 11 communicated with the inside of the pipeline 8 are arranged in the shell 1, the plurality of groups of air pipes 11 are spirally wound on the outer side wall of the drain pipe 3, and a heat absorption assembly 5 is arranged on the shell 1 to facilitate continuously feeding cold water into the drain pipe 3 and discharging the water after absorbing heat out of the shell 1.
[0036] Referring to Figure 1 and Figure 2 The shell 1 is fixedly installed with a distribution disc 2 on the side close to the pipeline 8, the distribution disc 2 is communicated with the inside of the pipeline 8, one end of the plurality of groups of air pipes 11 is fixedly installed on the distribution disc 2, the plurality of groups of air pipes 11 are communicated with the inside of the pipeline 8 through the distribution disc 2, and the drain pipe 3 is fixedly installed on the end face of the distribution disc 2 and coincides with the axis of the distribution disc 2; the plurality of groups of air pipes 11 are grouped according to the distance from the drain pipe 3, and the plurality of groups of air pipes 11 on the same group are circumferentially arranged with the drain pipe 3 as the axis; during installation, the plurality of groups of air pipes 11 on the group closest to the drain pipe 3 are close to each other and spirally wound on the outer side wall of the drain pipe 3, then the plurality of groups of air pipes 11 on the second closest group to the drain pipe 3 are close to each other and spirally wound on the outer side wall of the first layer of air pipes 11, and all the air pipes 11 are wound on the outer side of the drain pipe 3 in sequence according to the method, so that the plurality of layers of air pipes 11 are spirally wound on the outer side of the drain pipe 3; there is a gap between the adjacent air pipes 11, so that the water can pass through the gap.
[0037] Referring to Figure 2 and Figure 3 An end 4 communicated with the inside of the plurality of groups of air pipes 11 is installed on the side of the shell 1 far away from the pipeline 8, the end 4 is located on the end of the air pipe 11 far away from the distribution disc 2, the end 4 comprises a discharge pipe 41 and an end disc 42, the discharge pipe 41 is communicated with the inside of the plurality of groups of air pipes 11 and is used for discharging the compressed air in the plurality of groups of air pipes 11 after the compressed air is gathered, the end disc 42 is fixedly installed in the shell 1 and abuts against the end face of the discharge pipe 41 on the side close to the pipeline 8, the end disc 42 is used for sealing the end of the discharge pipe 41 close to the pipeline 8, the plurality of groups of air pipes 11 pass through the end disc 42 and enter the air pipe 11, a drain cavity 421 communicated with the inside of the drain pipe 3 is arranged in the inside of the end disc 42, the heat absorption assembly 5 continuously discharges the cold water into the drain cavity 421, then the cold water is discharged into the drain pipe 3 through the drain cavity 421, and the cold water is discharged into the central axis of the shell 1 through the plurality of through holes.
[0038] With reference to Figure 2 And Figure 3 The end disc 42 is provided with a plurality of groups of drainage holes 422 on the end face and the side wall away from the discharge pipe 41, and the drainage holes 422 are used to drain the cold water in the drainage cavity 421 into the gap between the shell 1 and the plurality of air pipes 11, so as to realize the flow of the cold water from the end away from the pipeline 8 to the end close to the pipeline 8, and finally improve the absorption effect of the cold water on the heat emitted by the air pipe 11. In order to improve the flow of the cold water in the shell 1, the drainage holes 422 are mainly concentrated on the end of the shell 1 away from the heat absorption assembly 5.
[0039] With reference to Figure 2 And Figure 3 The heat absorption assembly 5 includes a water inlet pipe 51 and a water outlet pipe 52. The water inlet pipe 51 is fixedly installed on the end of the shell 1 away from the pipeline 8, and is communicated with the inside of the drainage cavity 421. The water inlet pipe 51 is used to continuously provide cold water to absorb the heat emitted by the air pipe 11. The water outlet pipe 52 is fixedly installed on the end of the shell 1 close to the pipeline 8, and is used to drain the water between the shell 1 and the air pipe 11, so as to continuously absorb the heat in the air pipe 11 and discharge it.
[0040] With reference to Figure 2 In order to reduce the waste of heat in the air pipe 11, a heat preservation layer 6 is fixedly installed on the shell 1. The heat preservation layer 6 is used to reduce the probability of heat emission in the shell 1, so that the heat emitted by the air pipe 11 is absorbed by the cold water and discharged from the water outlet pipe 52.
[0041] With reference to Figure 2 A detection table 7 is fixedly installed on the shell 1. The detection table 7 is used to detect the liquid pressure value and the temperature value in the shell 1, so as to facilitate real-time monitoring of the situation in the shell 1.
[0042] With reference to Figure 2 An oil-water separator 9 is fixedly installed on the discharge pipe 41. The oil-water separator 9 is used to separate and discharge the condensed water in the discharge pipe 41 from the compressed air. Since the cold water in the shell 1 absorbs the heat of the compressed air in the air pipe 11, the water molecules in the compressed air are more likely to condense into water droplets. The water molecules in the compressed air are separated and discharged by the oil-water separator 9, so as to improve the cleanliness of the discharged compressed air.
[0043] The working principle of the embodiment of the application is as follows:
[0044] The compressed air discharged in the pipe 8 is distributed into the groups of air pipes 11 through the distribution disc 2, and is spirally wound on the outer side wall of the drain pipe 3 through the groups of air pipes 11, so as to improve the flow path of the compressed air. The inlet pipe 51 continuously discharges cold water into the drain cavity 421, and then the cold water is discharged from the through hole and the drain hole 422 into the gap between the shell 1 and the air pipes 11. The cold water absorbs the heat in the compressed air in the air pipes 11, and finally is discharged from the shell 1 through the outlet pipe 52, so as to improve the heat absorption effect of the gas in the same shell length.
[0045] The above are preferred embodiments of the present application, and are not intended to limit the protection scope of the present application. Any equivalent changes made on the basis of the structure, shape, and principle of the present application should be covered within the protection scope of the present application.
Claims
1. A compressed air waste heat recovery device, characterized by: The utility model relates to a heat absorption device for compressed air pipeline, including the shell (1) that communicates with the pipeline (8) of transportation compressed air, the shell (1) is provided with the drain pipe (3) on the axis, a plurality of through -holes are arranged on the lateral wall of drain pipe (3) and are spaced, a plurality of air pipes (11) that communicate with the inside of pipeline (8) are arranged in the shell (1), a plurality of air pipes (11) are spirally wound on the lateral wall of drain pipe (3), and the heat absorption assembly (5) is arranged on the shell (1) and is convenient for the continuous inlet of cold water into the drain pipe (3) and the discharge of water after absorbing heat from the shell (1).
2. A compressed air waste heat recovery device according to claim 1, characterised in that: The shell (1) is provided with a plurality of air pipes (11) on the side away from the pipeline (8), and the end (4) is communicated with the inside of the plurality of air pipes (11). The discharge pipe (41) is communicated with the inside of the plurality of air pipes (11) and is used for discharging the compressed air in the plurality of air pipes (11) after convergence; The end disc (42) is arranged in the shell (1) and abuts against the end face on the side of the discharge pipe (41) close to the pipeline (8), and the plurality of air pipes (11) pass through the end disc (42) and enter the discharge pipe (41), and the inside of the end disc (42) is provided with a drain cavity (421) communicated with the inside of the drain pipe (3), and the heat absorption assembly (5) continuously discharges cold water into the drain cavity (421).
3. A compressed air waste heat recovery device according to claim 2, characterised in that: A plurality of drain holes (422) are arranged on the end disc (42), and the drain holes (422) are used for discharging the cold water in the drain cavity (421) into the gap between the shell (1) and the plurality of air pipes (11).
4. A compressed air waste heat recovery device according to claim 1, wherein: A plurality of layers of the plurality of air pipes (11) are spirally wound on the outside of the drain pipe (3).
5. A compressed air waste heat recovery device according to claim 3, wherein: The heat absorption assembly (5) comprises: The water inlet pipe (51) is arranged on the end of the shell (1) away from the pipeline (8) and is communicated with the inside of the drain cavity (421), and the water inlet pipe (51) is used for continuously providing cold water and absorbing the heat emitted by the air pipe (11); The water outlet pipe (52) is arranged on the end of the shell (1) close to the pipeline (8) and is used for discharging the water between the shell (1) and the air pipe (11).
6. A compressed air waste heat recovery device according to claim 2, wherein: The discharge pipe (41) is provided with an oil-water separator (9), and the oil-water separator (9) is used for separating the condensed water in the discharge pipe (41) from the compressed air and discharging.
7. A compressed air waste heat recovery device according to claim 1, wherein: The shell (1) is provided with a heat preservation layer (6) on the outside, and the heat preservation layer (6) is used for reducing the heat emission probability in the shell (1).
8. A compressed air waste heat recovery device according to claim 1, wherein: The shell (1) is provided with a detection table (7), and the detection table (7) is used for detecting the liquid pressure value and the temperature value in the shell (1).