CN216592920U - Energy recovery device and exhaust system - Google Patents
Energy recovery device and exhaust system Download PDFInfo
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- CN216592920U CN216592920U CN202122434058.5U CN202122434058U CN216592920U CN 216592920 U CN216592920 U CN 216592920U CN 202122434058 U CN202122434058 U CN 202122434058U CN 216592920 U CN216592920 U CN 216592920U
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Abstract
The utility model relates to the technical field of energy conservation, and discloses an energy recovery device and an exhaust system. This energy recuperation device is applied to exhaust system, includes: a circulation structure filled with a circulation working medium; the circulating structure comprises a condensing assembly and an evaporating assembly, the condensing assembly is arranged at the air outlet of the exhaust system, and the evaporating assembly is arranged at the air inlet of the exhaust system; the inlet of the evaporation assembly is connected with the outlet of the condensation assembly through a first pipeline, and the inlet in the condensation assembly is connected with the outlet of the evaporation assembly through a second pipeline. The phase change of the circulating working medium in the circulating structure (the liquid is changed into the gas state by heat and the gas state is changed into the liquid state by cold) is utilized to achieve the purpose of heat exchange so as to transfer energy, the low-temperature exhaust energy which possibly contains explosive substances at the air outlet of the exhaust system can be indirectly recovered, the power of an air inlet device at the air inlet of the exhaust system can be reduced, and effective energy conservation is realized; in the whole circulation process, low-temperature exhaust possibly containing explosive substances is isolated from heat exchange air, so that the safety is high.
Description
Technical Field
The utility model relates to the technical field of energy conservation, in particular to an energy recovery device and an exhaust system.
Background
With the continuous development of the current manufacturing industry, more and more special gases and chemicals are needed in the production and manufacturing process, and in consideration of safety problems, a plurality of special gases and chemicals need to be stored in a warehouse with constant temperature and constant humidity, and air is continuously exhausted from the warehouse, so that great energy waste is generated in the process of exhausting air from the warehouse. Meanwhile, because the exhaust air contains explosive substances, the existing energy recovery device cannot directly participate in energy recovery, the explosive substances are easy to diffuse, and potential safety hazards exist.
SUMMERY OF THE UTILITY MODEL
The utility model discloses an energy recovery device and an exhaust system, which are used for recovering and utilizing energy at an air outlet of the exhaust system.
In order to achieve the purpose, the utility model provides the following technical scheme:
an energy recovery device applied to an exhaust system comprises: a circulation structure filled with a circulation working medium;
the circulating structure comprises a condensation component and an evaporation component, the condensation component is arranged at the air outlet of the exhaust system, and the evaporation component is arranged at the air inlet of the exhaust system;
the inlet of the evaporation assembly is connected with the outlet of the condensation assembly through a first pipeline, and the inlet in the condensation assembly is connected with the outlet of the evaporation assembly through a second pipeline.
The energy recovery device does not need to be provided with extra electric drive, achieves the purpose of heat exchange by utilizing the phase change (the liquid state is changed into a gas state by heat change, and the gas state is changed into the liquid state by cold) of the circulating working medium in the circulating structure so as to transfer energy, can indirectly recover low-temperature exhaust energy which possibly contains explosive substances at the air outlet of the exhaust system, and can also reduce the power of an air inlet device at the air inlet of the exhaust system so as to realize effective energy saving; in the whole circulation process, low-temperature exhaust possibly containing explosive substances is isolated from heat exchange air, so that the safety is high.
Optionally, the condensation assembly comprises a condenser having a first inlet for connecting the first conduit and a first outlet for connecting the second conduit;
the horizontal plane of the first inlet is higher than the horizontal plane of the first outlet.
Optionally, the condenser has an S-shaped condensing duct.
Optionally, the outer wall of the condensation duct is provided with condensation fins.
Optionally, the evaporation assembly comprises at least one evaporation unit;
each evaporation unit has a second inlet in communication with the second conduit and a second outlet in communication with the first conduit.
Optionally, each evaporation unit comprises a liquid reservoir and an evaporator connected in series, the liquid reservoir being in communication with the second conduit and the evaporator being in communication with the first conduit.
Optionally, the outer surface of the evaporator is provided with evaporation fins.
Optionally, the first pipe is made of copper or aluminum, and/or the second pipe is made of copper or aluminum.
Optionally, the outer surface of the first tube has fins and/or the outer surface of the second tube has fins.
An exhaust system comprises an air inlet device, an air outlet device and any one of the energy recovery devices provided by the technical scheme;
the air inlet device is used for cooling the airflow from the air inlet pipeline to the target space, and the air outlet device is used for guiding out the airflow in the target space through the air outlet pipeline;
the condensation assembly of the energy recovery device is arranged in the air outlet pipeline, and the evaporation assembly is arranged in the air inlet pipeline.
Drawings
Fig. 1 is a schematic structural diagram of an energy recovery device according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of an energy recovery device according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of an energy recovery device according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of an energy recovery device according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of an exhaust system according to an embodiment of the present invention.
Icon: 1-a condensing assembly; 11-a condenser; 2-an evaporation assembly; 21-a reservoir; 22-an evaporator; 3-a first conduit; 4-a second conduit; 5-air outlet device; 6-an air inlet device; 7-air outlet pipeline; 8-an air inlet pipeline.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, an embodiment of the present invention provides an energy recovery device, which includes a circulation structure filled with a circulation working medium, and can be applied to an exhaust system in a target space such as a warehouse or a production workshop. Generally, an exhaust system has an air inlet and an air outlet, the air inlet needs to cool external air and then inputs air flow with lower temperature into a target space, the air outlet derives the air flow in the target space, and the temperature difference between the air inlet and the air outlet is large.
Specifically, circulation structure includes condensation subassembly 1 and evaporation subassembly 2, and condensation subassembly 1 is used for setting up in exhaust system's air-out, and evaporation subassembly 2 is used for setting up in exhaust system's air inlet department. The inlet of the evaporation component 2 is connected with the outlet of the condensation component 1 through the first pipeline 3, the inlet of the condensation component 1 is connected with the outlet of the evaporation component 2 through the second pipeline 4, and a closed circulation space can be formed between the condensation component 1 and the evaporation component 2, so that the circulation working medium can circulate between the condensation component 1 and the evaporation component 2.
The evaporation assembly 2 is arranged at the air inlet of the exhaust system, the temperature of the air flow at the air inlet of the exhaust system is high, and the evaporation assembly 2 absorbs the energy at the air inlet of the exhaust system in the process of heating the circulating working medium to change the circulating working medium into a gaseous state, so that the temperature at the air inlet of the exhaust system can be reduced, namely the power of an air inlet device (such as an air conditioner) at the air inlet of the exhaust system is reduced, and the aim of saving energy is fulfilled; gaseous circulating working medium can enter the condensation component 1 along the first pipeline 3, and the first pipeline 3 is equivalent to a gas pipeline; the condensation component 1 is arranged at the air outlet of the exhaust system, and the condensation component 1 can cool the circulating working medium into liquid state by utilizing the lower air flow temperature at the air outlet of the exhaust system, which is equivalent to indirectly recycling the energy at the air outlet; the liquid circulating working medium can enter the evaporation assembly 2 along the second pipeline 4 to complete circulation, and the second pipeline 4 is equivalent to a liquid pipeline.
It can be seen that the energy recovery device does not need to be provided with extra electric drive, achieves the purpose of heat exchange by utilizing the phase change (liquid is heated to change into gas state, and gas state is changed into liquid state when meeting cold) of the circulating working medium in the circulating structure so as to transfer energy, can indirectly recover low-temperature exhaust energy which possibly contains explosive substances at the air outlet of the exhaust system, and can also reduce the power of an air inlet device at the air inlet of the exhaust system so as to realize effective energy conservation; in the whole circulation process, low-temperature exhaust possibly containing explosive substances is isolated from heat exchange air, so that the safety is high.
Wherein, as shown in fig. 2, the condensing assembly 1 comprises a condenser 11, the condenser 11 having a first inlet a1 for connecting the first pipe 3 and a first outlet b1 for connecting the second pipe 4; the first inlet a1 is at a higher level than the first outlet b 1.
When gaseous circulating working medium enters the condenser 11 from the first inlet a1, the circulating working medium is changed into liquid in a cooling state; the first inlet a1 is at a level higher than the level of the first outlet b1, and the circulating working medium can flow from the first inlet a1 to the first outlet b1 under the action of gravity.
In a possible implementation manner, as shown in fig. 3, the condenser 11 has an S-shaped condensation duct, the condensation duct is used for contacting with the air flow at the air outlet of the exhaust system, and the S-shaped condensation duct can provide sufficient cooling time for the circulating working medium, so that the circulating working medium can fully absorb the energy at the air outlet of the exhaust structure.
In addition, can also set up the condensation fin at condensing duct's outer wall, increase condensing duct's external surface area, improve condensing duct and exhaust system air-out department air current's area of contact, improve heat exchange efficiency. The shape of the condensing fin is not limited, and may be a wave shape, a cross-hatched shape, or the like.
As shown in fig. 4, the evaporation assembly 2 comprises at least one evaporation unit, each evaporation unit having a second inlet a2 and a second outlet b2, the second inlet a2 communicating with the second conduit 4, and the second outlet b2 communicating with the first conduit 3.
The liquid-state circulating working medium in the second pipeline 4 can enter the evaporation units from the second inlet a2 of each evaporation unit, is heated by the evaporation units to become a gas state, and enters the first pipeline 3 from the second outlet b 2. When the number of the evaporation units is at least two, the evaporation units are equivalently arranged in parallel.
With continued reference to fig. 4, each evaporation unit includes a liquid reservoir 21 and an evaporator 22 connected in series, the liquid reservoir 21 is communicated with the second pipeline 4, and the evaporator 22 is communicated with the first pipeline 3.
For each evaporation unit, the liquid reservoir 21 is used for collecting the liquid circulation working medium entering the evaporation unit, and the liquid circulation working medium in the liquid reservoir 21 enters the evaporator 22 and is heated by the evaporator 22 to become a gas.
When the evaporation units are arranged in parallel, the amount of the circulating working medium entering each evaporation unit is small, and at the moment, the liquid storage device 21 and the evaporator 22 can be communicated by adopting a pipeline with small flow, so that the liquid circulating working medium in the liquid storage device 21 can enter the evaporator 22 under the capillary action of the pipeline.
It should be noted that, in fig. 4, a plurality of evaporators 22 can be integrated into one, so as to simplify the structure.
The evaporator 22 needs to introduce the energy at the air inlet of the exhaust system into the circulating working medium, and the outer surface of the evaporator 22 can be provided with evaporation fins, so that the contact area between the evaporator 22 and the air flow at the air inlet of the exhaust system is increased, and the heat exchange efficiency is improved. The shape of the evaporation fin is not limited, and may be a wave shape, a cross-hatched shape, or the like.
In the embodiment of the utility model, the first pipeline 3 can be made of copper or aluminum, which are common, so that the acquisition is convenient and the cost can be reduced; correspondingly, the material of the second pipe 4 may also be copper or aluminum. Of course, the material of the first pipe 3 and the second pipe 4 may have other possibilities, and is not limited herein. In some possible implementations, fins may also be provided on the outer surface of the first and second tubes 3 and 4.
Based on the energy recovery device, an embodiment of the present invention further provides an exhaust system, which can be used for ventilating a target space, and specifically includes an air intake device 6, an air outlet device 5, and the energy recovery device in any of the above embodiments.
As shown in fig. 5, the air intake device 6 can cool the external air delivered from the air intake duct 8 and deliver the cooled external air into the target space; the air outlet device 5 can lead out the airflow in the target space through the air outlet pipeline 7. The condensation component 1 of the energy recovery device is arranged in the air outlet pipeline 7 so as to utilize the cooler air flow in the air outlet pipeline 7 to cool the circulating working medium in the condensation component 1; the evaporation assembly 2 is arranged in the air inlet pipeline 8 so as to absorb the energy of air flow in the air inlet pipeline 8 in the process of heating the circulating working medium in the evaporation assembly 2 and reduce the working power of the air inlet device 6. Therefore, the air exhaust system can recycle low-temperature air exhaust energy possibly containing explosive substances at the air outlet, and can also reduce the power of an air inlet device at the air inlet of the air exhaust system, thereby realizing effective energy conservation; in the whole circulation process, low-temperature exhaust possibly containing explosive substances is isolated from heat exchange air, so that the safety is high.
It will be apparent to those skilled in the art that various changes and modifications may be made in the embodiments of the present invention without departing from the spirit and scope of the utility model. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. An energy recovery device, characterized in that, be applied to exhaust system, includes: a circulation structure filled with a circulation working medium;
the circulating structure comprises a condensation component and an evaporation component, the condensation component is arranged at the air outlet of the exhaust system, and the evaporation component is arranged at the air inlet of the exhaust system;
the inlet of the evaporation assembly is connected with the outlet of the condensation assembly through a first pipeline, and the inlet in the condensation assembly is connected with the outlet of the evaporation assembly through a second pipeline.
2. The energy recovery device of claim 1, wherein the condensing assembly comprises a condenser having a first inlet for connecting the first conduit and a first outlet for connecting the second conduit;
the horizontal plane of the first inlet is higher than the horizontal plane of the first outlet.
3. The energy recovery device of claim 2, wherein the condenser has an S-shaped condensing duct.
4. The energy recovery device of claim 3, wherein an outer wall of the condensation duct is provided with condensation fins.
5. The energy recovery device of claim 1, wherein the evaporation assembly comprises at least one evaporation unit;
each evaporation unit has a second inlet in communication with the second conduit and a second outlet in communication with the first conduit.
6. The energy recovery device of claim 5, wherein each evaporation unit comprises a reservoir and an evaporator in series, the reservoir being in communication with the second conduit and the evaporator being in communication with the first conduit.
7. The energy recovery device of claim 6 wherein the outer surface of the evaporator is provided with evaporation fins.
8. The energy recovery device of claim 1, wherein the first conduit is made of copper or aluminum and/or the second conduit is made of copper or aluminum.
9. The energy recovery device of any one of claims 1-8 wherein an outer surface of the first conduit has fins and/or an outer surface of the second conduit has fins.
10. An exhaust system comprising air inlet means, air outlet means and an energy recovery device according to any one of claims 1 to 9;
the air inlet device is used for cooling the airflow conveyed to the target space by the air inlet pipeline, and the air outlet device is used for guiding out the airflow in the target space through the air outlet pipeline;
the condensation assembly of the energy recovery device is arranged in the air outlet pipeline, and the evaporation assembly is arranged in the air inlet pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122434058.5U CN216592920U (en) | 2021-10-09 | 2021-10-09 | Energy recovery device and exhaust system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122434058.5U CN216592920U (en) | 2021-10-09 | 2021-10-09 | Energy recovery device and exhaust system |
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| Publication Number | Publication Date |
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| CN216592920U true CN216592920U (en) | 2022-05-24 |
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| CN202122434058.5U Active CN216592920U (en) | 2021-10-09 | 2021-10-09 | Energy recovery device and exhaust system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115164609A (en) * | 2022-08-25 | 2022-10-11 | 湖南烁科热工智能装备有限公司 | Fully-sealed roller kiln waste heat utilization system |
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2021
- 2021-10-09 CN CN202122434058.5U patent/CN216592920U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115164609A (en) * | 2022-08-25 | 2022-10-11 | 湖南烁科热工智能装备有限公司 | Fully-sealed roller kiln waste heat utilization system |
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