CN212339575U - Pure countercurrent sensible heat exchanger - Google Patents
Pure countercurrent sensible heat exchanger Download PDFInfo
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- CN212339575U CN212339575U CN202021737868.7U CN202021737868U CN212339575U CN 212339575 U CN212339575 U CN 212339575U CN 202021737868 U CN202021737868 U CN 202021737868U CN 212339575 U CN212339575 U CN 212339575U
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Abstract
The utility model relates to the technical field of ventilation systems, in particular to a pure countercurrent sensible heat exchanger, which comprises an outdoor air inlet, an indoor fresh air inlet, an indoor return air inlet, an outdoor air outlet, a heat exchange core body, a shell, a fresh air fan, an exhaust fan, a first filter layer, a second filter layer and a third filter layer; the heat exchange core body, the fresh air fan, the exhaust fan, the first filter layer, the second filter layer and the third filter layer are all positioned in the shell; the heat exchange core is divided into a first heat exchange air channel and a second heat exchange air channel by the heat exchange tube and the shell; the first heat exchange air channel consists of an outdoor air inlet, a heat exchange core tube pass and an indoor fresh air inlet; the second heat exchange air duct consists of an indoor air return opening, a heat exchange core body shell pass and an outdoor air outlet. The utility model discloses a pure counter-current sensible heat exchanger has solved the shortcoming that conventional sensible heat exchanger heat exchange efficiency is low, life is short, and maintenance cost is high.
Description
Technical Field
The utility model relates to a ventilation system technical field, concretely relates to pure counter-current sensible heat exchanger.
Background
With the development of urbanization, the living standard of people is continuously improved, the requirement of modern urban people on the living environment is more and more emphasized, and the existing indoor design generally adopts a sensible heat exchanger to recover exhausted air cooling/heat and simultaneously purify indoor air so as to achieve the purpose of providing a comfortable and clean environment. However, with the rapid development of modern industry, air pollution is more and more serious, haze days are more and more, harmful substances (such as PM2.5) in the air seriously exceed the standard, and when indoor air pollution is serious, a large amount of dust and other harmful substances easily block a dust removal filtering device of a sensible heat exchanger, so that the dust removal filtering device needs to be frequently cleaned or replaced, and meanwhile, the service life of the dust removal filtering device is greatly shortened.
Ordinary exhaust fan, the air supply fan can only carry out simple airing exhaust, the air supply work, in hot summer, can lead to indoor temperature to rise when taking a breath, in cold winter, then can lead to indoor temperature to reduce, the fresh air that needs to make exhaust foul air and follow outdoor introduction through sensible heat exchanger this moment carries out the heat exchange, prior art shows that heat exchanger can carry out the recovery of different degrees to the cold/heat that contains in the indoor exhaust air, make the undulant minimizing of indoor temperature, realize energy-concerving and environment-protective purpose.
The prior art sensible heat exchanger mainly comprises the following parts: the air conditioner comprises an indoor fresh air inlet, an indoor return air inlet, an outdoor air outlet, a dust removal filtering device, a heat exchange core body, an air door mechanism, a switching mechanism, a plurality of driving fans and the like. When fresh air is needed in the indoor constant-temperature environment space, the driving fan is started, indoor dirty air passes through the indoor air return opening, flows through the heat exchange core body and then is discharged to the outdoor environment through the outdoor air outlet, the supplemented fresh air passes through the outdoor air inlet and flows through the heat exchange core body to exchange heat with indoor exhaust air, and cold/heat of the exhaust air is recovered and enters the indoor environment through the indoor fresh air inlet after passing through the dust removal filtering device. Above-mentioned process makes indoor dirty air pass through outdoor air exit and discharges to outdoor environment under the condition that realizes energy recuperation, guarantees the cleanliness factor and the comfort level of indoor space air.
The heat exchange core body is used as a core component, the main function is to recover cold/heat of exhaust air, the purpose of energy conservation is realized, and the temperature exchange efficiency of the total heat recoverer and the comfort level of indoor personnel are directly influenced by the level of the heat exchange efficiency. The heat exchange core body adopted by mainstream products in the market at present is a paper heat exchanger, and the fresh air and the exhaust air are cross-flow heat exchange, so that the heat exchanger with the structure has the advantages of lower heat exchange efficiency, narrower heat exchange channel and easy blockage, and the paper heat exchanger needs to be replaced regularly in a humid environment, generally needs to be replaced or cleaned within 15-30 days, so that the service life is shorter, and the operation cost is higher.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem that exists among the prior art, the utility model provides a heat exchange efficiency is high, long service life, need not to maintain maintenance and low cost's sensible heat exchanger.
In order to achieve the above object, the utility model adopts the following technical scheme:
a pure countercurrent sensible heat exchanger comprises an outdoor air inlet, an indoor fresh air inlet, an indoor return air inlet, an outdoor air outlet, a heat exchange core, a shell, a fresh air fan, an exhaust fan, a first filter layer, a second filter layer and a third filter layer;
the heat exchange core body, the fresh air fan, the exhaust fan, the first filter layer, the second filter layer and the third filter layer are all positioned in the shell;
the heat exchange core body is mainly formed by arranging and combining a plurality of heat exchange tubes, and is separated into a first heat exchange air channel and a second heat exchange air channel through the heat exchange tubes and the shell, an outdoor air inlet is positioned on the top surface of the sensible heat exchanger, an indoor fresh air inlet is positioned on the bottom surface of the sensible heat exchanger, the outdoor air inlet, a heat exchange core body tube pass and the indoor fresh air inlet are sequentially connected to form the first heat exchange air channel, an indoor air return inlet is positioned on the lower part of the side surface of the sensible heat exchanger, an outdoor air outlet is positioned on the upper part of the other side surface of the sensible heat exchanger, and the;
the fresh air fan, the first filter layer, the second filter layer and the third filter layer are positioned in the first heat exchange air channel and are sequentially arranged along the fresh air inlet direction, the fresh air fan, the first filter layer and the second filter layer are close to the outdoor air inlet, and the third filter layer is close to the indoor fresh air inlet;
the air exhaust fan is positioned in the second heat exchange air duct and close to the outdoor air outlet.
As an improvement of the technical scheme of the pure countercurrent sensible heat exchanger, the first heat exchange air channel and the second heat exchange air channel are distributed in parallel, and the air flowing mode inside the first heat exchange air channel and the second heat exchange air channel is in countercurrent flow.
As an improvement of the technical proposal of the pure countercurrent sensible heat exchanger, the heat exchange tube of the heat exchange core body adopts a smooth round tube, a low-rib tube, an elliptical tube or a twisted tube.
As an improvement of the technical scheme of the pure countercurrent sensible heat exchanger, the heat exchange tube of the heat exchange core body is made of copper tubes, stainless steel tubes, titanium tubes and aluminum tubes.
As an improvement of the technical scheme of the pure countercurrent sensible heat exchanger, the heat exchange tube of the heat exchange core body adopt the twisted tube, the adjacent twisted tube contacts with each other at the maximum reducing convex point to form a self-supporting structure.
As an improvement of the technical scheme of the pure countercurrent sensible heat exchanger, the heat exchange core body adopts the modular design and is formed by two or more groups of heat exchange tubes side by side, and the heat exchange core body is provided with an independent heat exchange air channel.
As an improvement of the technical scheme of the pure countercurrent sensible heat exchanger, the first filter layer is a primary filter or an electrostatic dust collector; the second filter layer is a high-efficiency filter; the third filter layer is an activated carbon layer, a HEPA filter screen or an ultraviolet sterilization layer.
As an improvement of the technical scheme of the pure countercurrent sensible heat exchanger, the filter layer all uses the buckle mode to be installed on the shell, and is convenient to detach.
As an improvement of the technical scheme of the pure countercurrent sensible heat exchanger, the new trend fan and the exhaust fan adopt the noise reduction centrifugal fan or the axial fan.
As an improvement of the technical scheme of the pure countercurrent sensible heat exchanger, the casing on be equipped with the access panel, and access panel movable mounting is on the casing.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the utility model discloses in, because first heat exchange wind channel and second heat exchange wind channel are parallel distribution, both inside air flow modes are reverse flow, therefore heat exchange efficiency will be higher than traditional cross-flow type paper heat exchanger, can furthest retrieve the cold/heat of airing exhaust, the energy saving.
2. Because the utility model discloses the heat exchange core adopts the metal material, so long service life is longer than conventional paper heat exchanger to need not to maintain low cost.
3. Because the heat exchange core heat exchange tube can be by a plurality of twist tubes, when the centre-to-centre spacing between the adjacent twist tube is equal with its outer major axis of pipe, can have a plurality of contact point between the adjacent twist tube, play the effect of mutual support through these contact points, can effectively prevent the heat exchange tube because the high velocity air skips the vibration that produces to can improve the velocity of flow of outside of tubes air, reduce equipment operation noise.
Drawings
Fig. 1 is a schematic structural view (front view) of a first embodiment of the present invention;
fig. 2 is a schematic structural view (side view) of a first embodiment of the present invention;
fig. 3 is a schematic structural view (front view) of a second embodiment of the present invention;
fig. 4 is a schematic structural view (side view) of a second embodiment of the present invention;
fig. 5 is a schematic structural view (front view) of a third embodiment of the present invention;
fig. 6 is a schematic structural view (side view) of a third embodiment of the present invention;
description of reference numerals: 1-outdoor air inlet; 2-indoor fresh air port; 3-indoor air return; 4-outdoor air outlet; 5-a heat exchange core; 6-a shell; 7-a fresh air fan; 8-an exhaust fan; 9-a first filter layer; 10-a second filter layer; 11-a third filter layer; 1 a-an outdoor air inlet of a first system; 2 a-a first system indoor fresh air port; 3 a-a first system indoor return air inlet; 4 a-first system outdoor air outlet; 5 a-a first system heat exchange core; 7 a-a first system fresh air fan; 8 a-a first system exhaust fan; 9 a-a first system first filter layer; 10 a-a first system second filter layer; 11 a-first system third filter layer; 1 b-an outdoor air inlet of a second system; 2 b-a second system indoor fresh air port; 3 b-a second system indoor return air inlet; 4 b-a second system outdoor air outlet; 5 b-a second system heat exchange core; 7 b-a second system fresh air fan; 8 b-a second system exhaust fan; 9 b-a second system first filter layer; 10 b-a second system second filter layer; 11 b-second system third filter layer.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solutions in the embodiments of the present invention, and obviously, the described embodiments are only some embodiments of the present invention, not all embodiments.
In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating relative importance or as implying any number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
Example one
Referring to fig. 1 and 2, the pure countercurrent sensible heat exchanger of the present embodiment includes an outdoor air inlet 1, an indoor fresh air inlet 2, an indoor return air inlet 3, an outdoor air outlet 4, a heat exchange core 5, a housing 6, a fresh air blower 7, an exhaust air blower 8, a first filter layer 9, a second filter layer 10, and a third filter layer 11.
The heat exchange core body 5, the fresh air fan 7, the exhaust fan 8, the first filter layer 9, the second filter layer 10 and the third filter layer 11 are all positioned in the shell body 6.
The heat exchange core body 5 is mainly formed by arranging and combining a plurality of heat exchange tubes, in the embodiment, the heat exchange tubes are ordinary thin-wall round tubes, and the heat exchange tubes and the shell are separated into a first heat exchange air channel and a second heat exchange air channel. The first heat exchange air channel consists of an outdoor air inlet 1, a heat exchange tube pass of a heat exchange core body 5 and an indoor fresh air inlet 2. The second heat exchange air channel consists of an indoor air return port 3, a heat exchange tube shell pass of a heat exchange core body 5 and an outdoor air outlet 4.
The outdoor air inlet 1 and the indoor fresh air inlet 2 are respectively positioned at the upper side and the lower side of the heat exchange core body 5, specifically, the outdoor air inlet 1 is positioned at the top surface of the sensible heat exchanger, and the indoor fresh air inlet 2 is positioned at the bottom surface of the sensible heat exchanger. The indoor air return opening 3 and the outdoor air outlet 4 are respectively positioned at the left side and the right side of the heat exchange core body 5, specifically, the indoor air return opening 3 is positioned at the lower part of the left side of the sensible heat exchanger, and the outdoor air outlet 4 is positioned at the upper part of the right side of the sensible heat exchanger.
The fresh air fan 7, the first filter layer 9, the second filter layer 10 and the third filter layer 11 are located in the first heat exchange air channel and are sequentially arranged along the fresh air inlet direction, the fresh air fan 7, the first filter layer 9 and the second filter layer 10 are close to the outdoor air inlet 1, and the third filter layer 11 is close to the indoor fresh air inlet 2.
The exhaust fan 8 is positioned in the second heat exchange air duct and is close to the outdoor air outlet 4.
When the air conditioner is installed, the outdoor air inlet 1 and the outdoor air outlet 4 are respectively communicated with the outdoor, and the indoor fresh air inlet 2 and the indoor air return inlet 3 are respectively communicated with the indoor. When the heat exchanger is used, outdoor fresh air is sucked into the sensible heat exchanger through the outdoor air inlet 1, flows through the first heat exchange air channel, sequentially flows through the outdoor air inlet 1, the fresh air fan 7, the first filter layer 9, the second filter layer 10, the heat exchange tube pass of the heat exchange core body 5, the third filter layer 11 and the indoor fresh air inlet 2, and then enters the room; meanwhile, indoor dirty air flows through the second heat exchange air channel through the indoor air return opening 3, sequentially passes through the indoor air return opening 3, the heat exchange tube shell pass of the heat exchange core body 5, the air exhaust fan 8 and the outdoor air outlet 4 and then enters the outdoor environment. Outdoor fresh air flowing through the first heat exchange air channel and indoor dirty air flowing through the second heat exchange air channel can be subjected to total heat exchange through the heat exchange core heat exchange tube 5, so that outdoor fresh air can fully absorb cold/heat of the indoor dirty air, the outdoor fresh air is introduced into a room in a state close to room temperature, and the energy-saving and heat-preserving effects are achieved.
The flow of the fresh air and the exhaust air is driven by a fresh air fan 7 and an exhaust air fan 8.
Example two
Referring to fig. 3 and 4, the pure countercurrent sensible heat exchanger of the present embodiment includes an outdoor air inlet 1, an indoor fresh air inlet 2, an indoor return air inlet 3, an outdoor air outlet 4, a heat exchange core 5, a housing 6, a fresh air blower 7, an exhaust air blower 8, a first filter layer 9, a second filter layer 10, and a third filter layer 11.
The heat exchange core body 5, the fresh air fan 7, the exhaust fan 8, the first filter layer 9, the second filter layer 10 and the third filter layer 11 are all positioned in the shell body 6.
The heat exchange core body 5 is mainly formed by arranging and combining a plurality of heat exchange tubes, in the embodiment, the heat exchange tubes are twisted tubes, and the heat exchange tubes and the shell are separated into a first heat exchange air channel and a second heat exchange air channel. The first heat exchange air channel consists of an outdoor air inlet 1, a heat exchange tube pass of a heat exchange core body 5 and an indoor fresh air inlet 2. The second heat exchange air channel consists of an indoor air return port 3, a heat exchange tube shell pass of a heat exchange core body 5 and an outdoor air outlet 4.
The outdoor air inlet 1 and the indoor fresh air inlet 2 are respectively positioned at the upper side and the lower side of the heat exchange core body 5, specifically, the outdoor air inlet 1 is positioned at the top surface of the sensible heat exchanger, and the indoor fresh air inlet 2 is positioned at the bottom surface of the sensible heat exchanger. The indoor air return opening 3 and the outdoor air outlet 4 are respectively positioned at the left side and the right side of the heat exchange core body 5, specifically, the indoor air return opening 3 is positioned at the lower part of the left side of the sensible heat exchanger, and the outdoor air outlet 4 is positioned at the upper part of the right side of the sensible heat exchanger.
The fresh air fan 7, the first filter layer 9, the second filter layer 10 and the third filter layer 11 are located in the first heat exchange air channel and are sequentially arranged along the fresh air inlet direction, the fresh air fan 7, the first filter layer 9 and the second filter layer 10 are close to the outdoor air inlet 1, and the third filter layer 11 is close to the indoor fresh air inlet 2.
The exhaust fan 8 is positioned in the second heat exchange air duct and is close to the outdoor air outlet 4.
When the air conditioner is installed, the outdoor air inlet 1 and the outdoor air outlet 4 are respectively communicated with the outdoor, and the indoor fresh air inlet 2 and the indoor air return inlet 3 are respectively communicated with the indoor. When the heat exchanger is used, outdoor fresh air is sucked into the sensible heat exchanger through the outdoor air inlet 1, flows through the first heat exchange air channel, sequentially flows through the outdoor air inlet 1, the fresh air fan 7, the first filter layer 9, the second filter layer 10, the heat exchange tube pass of the heat exchange core body 5, the third filter layer 11 and the indoor fresh air inlet 2, and then enters the room; meanwhile, indoor dirty air flows through the second heat exchange air channel through the indoor air return opening 3, sequentially passes through the indoor air return opening 3, the heat exchange tube shell pass of the heat exchange core body 5, the air exhaust fan 8 and the outdoor air outlet 4 and then enters the outdoor environment. Outdoor fresh air flowing through the first heat exchange air channel and indoor dirty air flowing through the second heat exchange air channel can be subjected to total heat exchange through the heat exchange core heat exchange tube 5, so that outdoor fresh air can fully absorb cold/heat of the indoor dirty air, the outdoor fresh air is introduced into a room in a state close to room temperature, and the energy-saving and heat-preserving effects are achieved.
The flow of the fresh air and the exhaust air is driven by a fresh air fan 7 and an exhaust air fan 8.
The difference between the embodiment and the first embodiment is that the heat exchange core heat exchange tube adopts twisted tubes instead of common thin-wall round tubes, when the center distance between adjacent twisted tubes is equal to the outer long axis of the heat exchange core, a plurality of contact points exist between adjacent twisted tubes, and the contact points play a role of mutual support, so that the vibration of the heat exchange tube caused by the skipping of high-speed airflow can be effectively prevented, the flow velocity of air outside the heat exchange tube can be improved, and the running noise of equipment can be reduced.
EXAMPLE III
Referring to fig. 5 and 6, in the pure countercurrent sensible heat exchanger, the heat exchange core is in a modular design, and is formed by two or more sets of heat exchange cores arranged side by side, and has independent heat exchange air channels. Specifically, the method comprises the following steps:
the first system comprises a first system outdoor air inlet 1a, a first system indoor fresh air inlet 2a, a first system indoor air return 3a, a first system outdoor air outlet 4a, a first system heat exchange core body 5a, a first system fresh air fan 7a, a first system exhaust fan 8a, a first system first filter layer 9a, a first system second filter layer 10a and a first system third filter layer 11 a.
The second system comprises a second system outdoor air inlet 1b, a second system indoor fresh air inlet 2b, a second system indoor air return 3b, a second system outdoor air outlet 4b, a second system heat exchange core body 5b, a second system fresh air fan 7b, a second system exhaust fan 8b, a second system first filter layer 9b, a second system second filter layer 10b and a second system third filter layer 11 b.
The first system heat exchange core body 5a, the first system fresh air fan 7a, the first system exhaust fan 8a, the first system first filter layer 9a, the first system second filter layer 10a, the first system third filter layer 11a, the second system heat exchange core body 5b, the second system fresh air fan 7b, the second system exhaust fan 8b, the second system first filter layer 9b, the second system second filter layer 10b and the second system third filter layer 11b are all located in the shell 6, but a partition board is arranged in the middle to block the two independent systems.
During installation, the first system outdoor air inlets 1a and 1b and the first system outdoor air outlets 4a and 4b and the second system outdoor air outlets are respectively communicated with the outdoor space, and the first system indoor fresh air inlets 2a and 2b and the first system indoor return air inlets 3a and 3b and the second system indoor return air inlets are respectively communicated with the indoor space. When the outdoor air conditioner is used, outdoor fresh air is driven by the fresh air fan 7a or 7b, sucked into the sensible heat exchanger through the outdoor air inlet 1, sequentially flows through the first filter layer 9a or 9b, the second filter layer 10a or 10b, the tube pass of the heat exchange core body 5a or 5b, the third filter layer 11a or 11b and the indoor fresh air inlet 2a or 2b and then enters the indoor space, and meanwhile, indoor dirty air sequentially flows through the indoor return air inlet 3a or 3b, the shell pass of the heat exchange tube of the heat exchange core body 5a or 5b, the exhaust fan 8a or 8b and the outdoor exhaust outlet 4a or 4b through the indoor return air inlet 3a or 3b and then enters the outdoor space. Outdoor fresh air flowing through the heat exchange tube pass of the heat exchange tube of the first system or the second system 5a or 5b and indoor dirty air flowing through the heat exchange tube shell pass of the first system or the second system 5a or 5b can be subjected to total heat exchange through the heat exchange core 5a or 5b, so that outdoor fresh air can fully absorb the cold/heat of the indoor dirty air, and then the outdoor fresh air is introduced into a room in a state close to room temperature, and the effects of energy conservation and heat preservation are achieved.
The difference between the second embodiment and the first embodiment is that the heat exchange core body is composed of modules, two or more heat exchange modules can be designed, the heat exchange core body is suitable for occasions with large air volume, each heat exchange module is independent and does not interfere with each other, the requirements of different indoor spaces on air volume and temperature can be met respectively, and the heat exchange core body is flexibly suitable for the requirements of various occasions.
The above detailed description is specific to possible embodiments of the present invention, and the embodiments are not intended to limit the scope of the present invention, and all equivalent implementations or modifications that do not depart from the scope of the present invention should be included within the scope of the present invention.
Claims (10)
1. A pure counter-current sensible heat exchanger, characterized by: the air conditioner comprises an outdoor air inlet, an indoor fresh air inlet, an indoor air return inlet, an outdoor air outlet, a heat exchange core, a shell, a fresh air fan, an air exhaust fan, a first filter layer, a second filter layer and a third filter layer;
the heat exchange core body, the fresh air fan, the exhaust fan, the first filter layer, the second filter layer and the third filter layer are all positioned in the shell;
the heat exchange core body is mainly formed by arranging and combining a plurality of heat exchange tubes, and is separated into a first heat exchange air channel and a second heat exchange air channel through the heat exchange tubes and the shell, an outdoor air inlet is positioned on the top surface of the sensible heat exchanger, an indoor fresh air inlet is positioned on the bottom surface of the sensible heat exchanger, the outdoor air inlet, a heat exchange core body tube pass and the indoor fresh air inlet are sequentially connected to form the first heat exchange air channel, an indoor air return inlet is positioned on the lower part of the side surface of the sensible heat exchanger, an outdoor air outlet is positioned on the upper part of the other side surface of the sensible heat exchanger, and the;
the fresh air fan, the first filter layer, the second filter layer and the third filter layer are positioned in the first heat exchange air channel and are sequentially arranged along the fresh air inlet direction, the fresh air fan, the first filter layer and the second filter layer are close to the outdoor air inlet, and the third filter layer is close to the indoor fresh air inlet;
the air exhaust fan is positioned in the second heat exchange air duct and close to the outdoor air outlet.
2. A pure counterflow sensible heat exchanger as in claim 1 wherein: the first heat exchange air channel and the second heat exchange air channel are distributed in parallel, and the air flow modes in the first heat exchange air channel and the second heat exchange air channel are in reverse flow.
3. A pure counterflow sensible heat exchanger as in claim 1 wherein: the heat exchange tubes of the heat exchange core body adopt smooth round tubes, low-rib tubes, oval tubes or twisted tubes.
4. A pure counterflow sensible heat exchanger as in claim 1 wherein: the heat exchange tube of the heat exchange core body is made of copper tubes, stainless steel tubes, titanium tubes or aluminum tubes.
5. A pure counterflow sensible heat exchanger as in claim 3 wherein: when the heat exchange tubes of the heat exchange core body adopt the twisted tubes, the adjacent twisted tubes are contacted with each other at the maximum diameter-variable convex point to form a self-supporting structure.
6. A pure counterflow sensible heat exchanger as in claim 1 wherein: the heat exchange core body adopts a modular design, consists of two or more groups of heat exchange tubes in parallel and is provided with an independent heat exchange air channel.
7. A pure counterflow sensible heat exchanger as in claim 1 wherein: the first filter layer is a primary filter or an electrostatic dust collector; the second filter layer is a high-efficiency filter; the third filter layer is an activated carbon layer, a HEPA filter screen or an ultraviolet sterilization layer.
8. A pure counterflow sensible heat exchanger as in claim 7 wherein: the filter layer all use the buckle mode to install on the casing.
9. A pure counterflow sensible heat exchanger as in claim 1 wherein: the fresh air fan and the exhaust fan adopt a noise reduction centrifugal fan or an axial flow fan.
10. A pure counterflow sensible heat exchanger as in claim 1 wherein: the shell on be equipped with the access panel, and access panel movable mounting is on the shell.
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| CN202021737868.7U CN212339575U (en) | 2020-08-19 | 2020-08-19 | Pure countercurrent sensible heat exchanger |
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| CN202021737868.7U CN212339575U (en) | 2020-08-19 | 2020-08-19 | Pure countercurrent sensible heat exchanger |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023082455A1 (en) * | 2021-11-14 | 2023-05-19 | 肖正广 | Counter-flow energy-saving heat exchanger core |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| WO2023082455A1 (en) * | 2021-11-14 | 2023-05-19 | 肖正广 | Counter-flow energy-saving heat exchanger core |
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