CN217358156U - Waste heat recycling system - Google Patents
Waste heat recycling system Download PDFInfo
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- CN217358156U CN217358156U CN202220713094.7U CN202220713094U CN217358156U CN 217358156 U CN217358156 U CN 217358156U CN 202220713094 U CN202220713094 U CN 202220713094U CN 217358156 U CN217358156 U CN 217358156U
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Abstract
The utility model provides a waste heat recycling system, which comprises a waste heat supply unit, a heat conversion unit and a heat utilization unit; the waste heat supply unit is connected with the heat conversion unit through a heat exchanger; the heat conversion unit is connected with the heat utilization unit and is used for realizing heat transfer; the heat conversion unit comprises a circulating oil path which is respectively connected with the heat exchanger and the heat utilization unit and is used for reducing vaporization of a heating medium in the waste heat recovery process. The utility model discloses a be connected circulating oil way and indirect heating equipment, absorb waste heat supply unit's heat through the fluid in the circulating oil way, because the fluid boiling point is higher, even if use in plateau district, vaporization can not take place for fluid in heat exchange process, can be used to reduce the vaporization of waste heat recovery in-process heat medium, guarantees cooling circulation circuit's normal work, and in the cooling process, can make the gas temperature among the air compressor machine air outlet pipeline reduce at least 50 ℃.
Description
Technical Field
The utility model relates to a resource recovery utilizes technical field, concretely relates to waste heat recovery utilizes system.
Background
In a plateau environment, an air compressor is usually adopted to supplement oxygen and pressurize the interior of a plateau building, but compressed gas flowing out of an air outlet pipeline of the air compressor has very high temperature, cannot be directly introduced into the building and needs to be cooled. In the cooling process, water is usually used as a heating medium flowing through the heat exchange equipment, but because the pressure of the plateau area is low and the boiling point of the water is low, cooling water is easy to vaporize in the cooling process, and the normal work of a cooling circulation loop is influenced. In addition, the heat in the air outlet pipeline of the air compressor is not recycled in the cooling process, so that huge resource waste is caused.
In summary, a waste heat recycling system is urgently needed to solve the problems in the prior art.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a waste heat recovery utilizes system to solve the problem that the heat medium of flowing through indirect heating equipment easily vaporizes in plateau district.
In order to achieve the above object, the present invention provides a waste heat recycling system, which comprises a waste heat supply unit, a heat conversion unit and a heat utilization unit; the waste heat supply unit is connected with the heat conversion unit through a heat exchanger; the heat conversion unit is connected with the heat utilization unit and is used for realizing heat transfer; the heat conversion unit comprises a circulating oil path which is respectively connected with the heat exchanger and the heat utilization unit and is used for reducing vaporization of a heating medium in the waste heat recovery process.
Preferably, a heat exchange coil is arranged in the circulating oil way; the heat exchange coil is arranged inside the heat preservation water tank of the heat utilization unit.
Preferably, a closed circulating pump is arranged in the circulating oil path and used for providing circulating power for the circulating oil path.
Preferably, a pressure sensor and a valve are further arranged in the circulating oil circuit.
Preferably, the heat conversion unit further comprises a supplementary oil path connected with the circulating oil path; the oil supplementing way is provided with an oil tank and an expansion tank assembly; the expansion tank assembly is respectively connected with the oil tank and the circulating oil way.
Preferably, the waste heat supply unit comprises an air compressor connected with the heat exchanger.
Preferably, the heat utilization unit includes a water inlet line and a hot water supply line communicated with the hot water tank.
Preferably, the water inlet pipeline is provided with a one-way valve, so that water in the heat-preservation water tank is prevented from flowing into the water inlet pipeline.
Preferably, a circulating water pump is arranged on the hot water supply pipeline and used for realizing the flow of the hot water on the hot water supply pipeline.
Preferably, temperature sensors are arranged in the waste heat supply unit, the heat conversion unit and the heat utilization unit.
Use the technical scheme of the utility model, following beneficial effect has:
(1) the utility model discloses in, through being connected circulating oil way and indirect heating equipment, absorb the heat of waste heat supply unit through the fluid in the circulating oil way, because the fluid boiling point is higher, even if use in plateau district, fluid can not take place the vaporization in heat exchange process, can be used to reduce the vaporization of waste heat recovery in-process heat medium, guarantees cooling circulation circuit's normal work, and in the cooling process, can make the air compressor machine gas temperature in the gas outlet pipeline reduce at least 50 ℃.
(2) In the utility model, the waste heat supply unit is connected with the heat conversion unit through the heat exchanger, and the waste heat in the waste heat supply unit is transferred to the heat conversion unit, so that the recovery of the waste heat is realized; the heat conversion unit is connected with the heat utilization unit and used for realizing heat transfer and utilization, realizing heat recycling and reducing energy loss.
(3) The utility model discloses in, waste heat supply unit includes the air compressor machine, and the gas of air compressor machine output can let in plateau building's new trend system after the cooling in, carries out oxygenating, pressure boost and heating to plateau building inside.
(4) In the utility model, the circulating oil circuit comprises a closed circulating pump which is used for providing circulating power for the circulating oil circuit; be equipped with heat exchange coil in the circulation oil circuit, heat exchange coil sets up inside the holding water box of heat utilization unit, with the absorbed heat transfer of fluid of circulation oil circuit to the holding water box in, heat the inside water of holding water box, realize thermal recycle, make the water in the holding water box can reach 60 ℃ at least.
(5) The utility model discloses in, be equipped with the supplementary oil circuit among the heat conversion unit, be equipped with oil tank and expansion tank assembly on the supplementary oil circuit, during the fluid that the oil tank flows got into the expansion tank assembly, the expansion tank assembly provided the pressure of mending oil, and fluid in the compensation circulation oil circuit is revealed, absorbs the vibration that the closed circulating pump produced, eliminates the system pulsation because of expend with heat and contract with cold brings.
(6) In the utility model, the heat utilization unit comprises a heat preservation water tank, a water inlet pipeline and a hot water supply pipeline which are communicated with the heat preservation water tank; the water inlet pipeline is used for supplementing cold water to the inside of the heat-preservation water tank, and a one-way valve is arranged on the water inlet pipeline to prevent water in the heat-preservation water tank from flowing into the water inlet pipeline; the hot water supply pipeline is provided with a circulating water pump for realizing the flow of hot water on the hot water supply pipeline.
In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:
fig. 1 is a schematic composition diagram of a waste heat recovery system in an embodiment of the present application;
the system comprises an oil tank 1, an expansion tank assembly 2, a pressure sensor 3, a one-way valve 4, an air compressor 5, a temperature sensor 6, a closed circulating pump 7, a valve 8, a valve 9, a heat exchange coil pipe 10, a heat preservation water tank 11, a circulating water pump 12, shower equipment 13, a building 14, a water taking point 15 and a heat exchanger.
Detailed Description
The embodiments of the invention will be described in detail hereinafter with reference to the accompanying drawings, but the invention can be implemented in many different ways, which are defined and covered by the claims.
Example (b):
referring to fig. 1, the present embodiment is applied to recycling waste heat of an air compressor in a plateau environment.
A waste heat recycling system comprises a waste heat supply unit, a heat conversion unit and a heat utilization unit; the waste heat supply unit is connected with the heat conversion unit through a heat exchanger 15, and waste heat in the waste heat supply unit is transferred to the heat conversion unit, so that waste heat recovery is realized; the heat conversion unit is connected with the heat utilization unit and is used for realizing the transfer and utilization of heat; the heat conversion unit includes the circulation oil circuit of being connected with heat exchanger 15 and heat utilization unit respectively, and in plateau low pressure environment, if use the circulation water route to carry out heat exchange, the boiling point is lower, takes place the vaporization easily in heat exchange process, and the circulation oil circuit of this application can not take place the vaporization because the boiling point is higher (being higher than 110 ℃) in heat exchange process, can be used to reduce the vaporization of waste heat recovery in-process heat medium.
The waste heat supply unit comprises an air compressor 5 connected with a heat exchanger 15, high-temperature gas in an air outlet pipeline of the air compressor 5 flows through the heat exchanger 15 to exchange heat with a circulating oil way, and the cooled gas can be introduced into a fresh air system of the plateau building to supplement oxygen, pressurize and heat the interior of the plateau building; and a temperature sensor 6 is arranged on a high-temperature compressed gas pipeline of the air compressor 5 and used for detecting the temperature of high-temperature gas in an air outlet pipeline of the air compressor 5.
The heat conversion unit comprises a circulating oil path and a supplementary oil path, and the circulating oil path comprises a closed circulating pump 7 and is used for providing circulating power for the circulating oil path; the valve 8 is arranged on the circulating oil way and is used for realizing the opening and closing of the circulating oil way or realizing the maintenance; the circulating oil circuit is also provided with a pressure sensor 3 and a temperature sensor 6 which are respectively used for detecting the pressure and the temperature of the oil in the circulating oil circuit; a heat exchange coil pipe 9 is arranged in the circulating oil way; the heat exchange coil 9 is arranged inside the heat preservation water tank 10 of the heat utilization unit, and heat absorbed by oil of the circulating oil way is transmitted to the heat preservation water tank 10 through the heat exchange coil 9 to heat water inside the heat preservation water tank 10.
The supplement oil way is connected with the circulating oil way and used for compensating oil leakage in the circulating oil way; be equipped with oil tank 1 and expansion tank assembly 2 on the supplementary oil circuit, expansion tank assembly 2 is connected with oil tank 1 and circulation oil circuit respectively, and during oil that oil tank 1 flowed out got into expansion tank assembly 2, expansion tank assembly 2 provided the pressure of mending oil, and the fluid in the compensation circulation oil circuit is revealed, absorbs the vibration that closed circulating pump 7 produced, eliminates because of the systematic pulsation that expends with heat and contract with cold and bring.
The heat utilization unit includes a heat-insulating water tank 10, and a water inlet pipeline and a hot water supply pipeline communicated with the heat-insulating water tank 10. The inside of the heat preservation water tank 10 is sealed and has certain pressure, and the heat preservation water tank 10 is provided with a temperature sensor 6 for detecting the temperature of water inside the heat preservation water tank 10. The water inlet pipeline is used for supplying cold water to the interior of the heat preservation water tank 10, and the check valve 4 is arranged on the water inlet pipeline, so that water in the heat preservation water tank 10 is prevented from flowing into the water inlet pipeline. The hot water supply pipeline is used for communicating water using equipment (such as shower equipment 12, a hot water taking point 14 and the like) in a building 13 with the heat preservation water tank 10, a circulating water pump 11 is arranged on the hot water supply pipeline and used for realizing the flow of hot water on the hot water supply pipeline, and a temperature sensor 6 is also arranged on the hot water supply pipeline and used for detecting whether the temperature of the hot water meets the requirement or not.
The use method of the waste heat recycling system comprises the following steps:
starting each component in the waste heat supply unit and the heat conversion unit, enabling an air outlet pipeline of the air compressor 5 to flow through the heat exchanger 15, and reducing the temperature of gas in the air outlet pipeline by at least 50 ℃ after heat exchange; the oil in the circulating oil circuit flows into the heat exchange coil 9 under the action of the closed circulating pump 7, the heat exchange coil 9 exchanges heat with the water in the heat preservation water tank 10, and the water in the heat preservation water tank 10 can be heated to more than 60 ℃; personnel inside the tall building 13 may use the hot water by opening the shower 12, water intake 14 valve, etc.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A waste heat recycling system is characterized by comprising a waste heat supply unit, a heat conversion unit and a heat utilization unit; the waste heat supply unit and the heat conversion unit are connected through a heat exchanger (15); the heat conversion unit is connected with the heat utilization unit and is used for realizing heat transfer; the heat conversion unit comprises a circulating oil path which is respectively connected with the heat exchanger (15) and the heat utilization unit and is used for reducing vaporization of a heating medium in the waste heat recovery process.
2. The waste heat recycling system according to claim 1, wherein a heat exchange coil (9) is arranged in the circulating oil circuit; the heat exchange coil (9) is arranged inside a heat preservation water tank (10) of the heat utilization unit.
3. A waste heat recovery system according to claim 2, characterized in that a closed circulation pump (7) is arranged in the circulation oil circuit for providing circulation power for the circulation oil circuit.
4. A waste heat recovery system according to claim 3, wherein a pressure sensor (3) and a valve (8) are further arranged in the circulating oil circuit.
5. The waste heat recovery and utilization system according to any one of claims 1 to 4, wherein the heat conversion unit further includes a supplementary oil path connected to the circulating oil path; an oil tank (1) and an expansion tank assembly (2) are arranged on the supplementary oil path; the expansion tank assembly (2) is respectively connected with the oil tank (1) and the circulating oil way.
6. A waste heat recovery system according to claim 1, characterized in that the waste heat supply unit comprises an air compressor (5) connected to a heat exchanger (15).
7. A waste heat recovery system according to claim 2, wherein the heat utilizing unit comprises a water inlet line and a hot water supply line communicating with the holding water tank (10).
8. A waste heat recovery system according to claim 7, characterized in that the water inlet pipeline is provided with a one-way valve (4) to prevent water in the holding water tank (10) from flowing into the water inlet pipeline.
9. A waste heat recovery system according to claim 7, characterized in that the hot water supply line is provided with a circulating water pump (11) for realizing the flow of hot water in the hot water supply line.
10. A waste heat recovery and utilization system according to claim 1, characterized in that temperature sensors (6) are provided in the waste heat supply unit, the heat conversion unit and the heat utilization unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220713094.7U CN217358156U (en) | 2022-03-29 | 2022-03-29 | Waste heat recycling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220713094.7U CN217358156U (en) | 2022-03-29 | 2022-03-29 | Waste heat recycling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217358156U true CN217358156U (en) | 2022-09-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220713094.7U Active CN217358156U (en) | 2022-03-29 | 2022-03-29 | Waste heat recycling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217358156U (en) |
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2022
- 2022-03-29 CN CN202220713094.7U patent/CN217358156U/en active Active
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