CN212777757U - Ground return air type full heat exchanger - Google Patents

Ground return air type full heat exchanger Download PDF

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Publication number
CN212777757U
CN212777757U CN202020823837.7U CN202020823837U CN212777757U CN 212777757 U CN212777757 U CN 212777757U CN 202020823837 U CN202020823837 U CN 202020823837U CN 212777757 U CN212777757 U CN 212777757U
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fresh air
air outlet
dirty
dirty air
area
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CN202020823837.7U
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葛丰南
林洁
王飞飞
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Zhejiang Baozhi Environmengt Technology Co ltd
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Zhejiang Baozhi Environmengt Technology Co ltd
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Abstract

The utility model relates to a ground return air type total heat exchanger, which comprises a shell provided with a fresh air inlet, a fresh air outlet and a dirty air outlet; the shell is internally provided with a heat exchange core and a filtering component, and is divided into a fresh air inlet area, a dirty air inlet area, a fresh air outlet area and a dirty air outlet area by a group of partition plates; a first centrifugal fan corresponding to the fresh air outlet is arranged in the fresh air outlet area; a second centrifugal fan corresponding to the dirty air outlet is arranged in the dirty air outlet area; the bottom of the shell is provided with a dirty air return box with at least one dirty air return opening; an electric valve is arranged at the fresh air inlet; a switching valve is arranged between the fresh air inlet area and the dirty air outlet area, and when the switching valve is opened, the fresh air inlet is directly communicated with the dirty air outlet. The inside specific structure that has of ground return air type total heat exchanger of this application, accessible control switching valve switches into three kinds of modes of inner loop, extrinsic cycle, mixed wind, and the user can select suitable operational mode as required, makes total heat exchanger purify the air all the time.

Description

Ground return air type full heat exchanger
Technical Field
The utility model relates to a new fan technical field, concretely relates to ground return air type total heat exchanger.
Background
Along with the continuous development of economy, the living standard of people is constantly improved, but simultaneously, what accompanies is that the quality of air worsens increasingly and the haze is more and more serious, consequently people increase by a wide margin to the demand of new trend product. In order to solve the haze removal and energy saving problems, people vigorously research and develop the full heat exchanger. The shell of the total heat exchanger on the market at present is usually provided with a filter assembly which can filter fresh air, and simultaneously, the filter assembly is driven by a fan, indoor exhaust air and the fresh air flow through a heat exchange core in a cross mode, and because temperature difference exists between air flows on two sides of the heat exchange membrane in the heat exchange core, two air flows exchange heat through the heat exchange membrane to realize the function of stabilizing the temperature, and the air conditioner is matched for use, so that the power consumption of the air conditioner can be reduced, and the air conditioner is matched for use in winter in the north, so that the consumption of a heating ground can be reduced, and the dual purposes of air.
The ground return air type total heat exchanger is a type of total heat exchanger which is provided with an air return opening at the bottom, indoor dirty air enters the total heat exchanger from the air return opening at the bottom and is discharged out of a room after heat exchange, floating ash near the ground can be discharged, the indoor air is guaranteed to be fresh and clean, and the life quality of a user is improved.
However, the total heat exchanger in the current market generally has only an external circulation mode, namely, outdoor fresh air is introduced, and indoor turbid air is discharged, so that some defects exist in function. For example, when the outside air is polluted seriously, the filter in the total heat exchanger is invalid, or the indoor air quality is good, and the heat preservation capability of a room is required to be improved, the total heat exchanger can only be closed temporarily, and then the total heat exchanger is opened again when required, so that the situation that the total heat exchanger cannot be used fully is caused, and meanwhile, certain troubles are brought to the life of a user.
SUMMERY OF THE UTILITY MODEL
The utility model provides a ground return air type total heat exchanger. The utility model discloses an inside of ground return air type total heat exchanger has specific structure, and structural design is reasonable, compact, and the complete machine is small, can switch into three kinds of modes of inner loop, extrinsic cycle, mixed wind through control switching valve, and the user can select suitable operating mode by oneself as required, and need not shut down, makes total heat exchanger purify the air all the time, accomplishes the best use of things, simultaneously, can improve the heat preservation effect in room through selecting suitable mode, is favorable to energy saving and emission reduction; the total heat exchanger is simple in structure and easy to implement, the electric valve is arranged at the fresh air inlet, the fresh air inlet of the total heat exchanger can be automatically opened and closed by controlling the electric valve, and the total heat exchanger is convenient to use; furthermore, the utility model discloses a ground return air type total heat exchanger is through setting up dirty wind return air inlet in the bottom, during the inner loop mode, can make indoor dirty wind pass through dirty wind return air inlet and get into the total heat exchanger and carry out after the air purification and emit into indoor once more, guarantees that indoor air is fresh, can avoid the energy waste simultaneously to play the effect of indoor circulation of air with higher speed.
The technical scheme of the utility model: the ground return air type total heat exchanger comprises a shell, wherein a fresh air inlet, a fresh air outlet and a dirty air outlet are formed in the shell; a heat exchange core is arranged inside the shell; the area for installing the heat exchange core in the shell is a heat exchange area, and the rest areas are divided into a fresh air inlet area, a dirty air inlet area, a fresh air outlet area and a dirty air outlet area through a group of partition plates; the fresh air inlet area is communicated with a fresh air inlet, the fresh air outlet area is communicated with a fresh air outlet, and the dirty air outlet area is communicated with a dirty air outlet; in the fresh air inlet area, a filter assembly for filtering fresh air is arranged between the fresh air inlet and the fresh air channel of the heat exchange core; a first centrifugal fan is arranged in the fresh air outlet area and corresponds to the fresh air outlet; a second centrifugal fan is arranged in the dirty air outlet area and corresponds to the dirty air outlet; the bottom of the shell is provided with a dirty air return box, and the dirty air return box is provided with at least one dirty air return opening; the dirty air inlet area is communicated with a dirty air return inlet; a switching valve is arranged between a fresh air inlet area and a dirty air outlet area in the shell, and when the switching valve is in an open state, the fresh air inlet is directly communicated with the dirty air outlet; an electric valve is arranged at the fresh air inlet.
Compared with the prior art, the utility model discloses an inside of ground return air type total heat exchanger has specific structure, and structural design is reasonable, compact, and the complete machine is small, can switch into three kinds of modes of inner loop, extrinsic cycle, mixed wind through control switch valve, and the user can select suitable operating mode by oneself as required, and need not shut down, makes total heat exchanger purify the air all the time, accomplishes the best use of things, simultaneously, can improve the heat preservation effect in room through selecting suitable mode, is favorable to energy saving and emission reduction; the total heat exchanger is simple in structure and easy to implement, the electric valve is arranged at the fresh air inlet, the fresh air inlet of the total heat exchanger can be automatically opened and closed by controlling the electric valve, and the total heat exchanger is convenient to use; furthermore, the utility model discloses a ground return air type total heat exchanger is through setting up dirty wind return air inlet in the bottom, during the inner loop mode, can make indoor dirty wind pass through dirty wind return air inlet and get into the total heat exchanger and carry out after the air purification and emit into indoor once more, guarantees that indoor air is fresh, can avoid the energy waste simultaneously to play the effect of indoor circulation of air with higher speed.
As optimization, the switching valve comprises a fixed seat and a rotary baffle; the rotary baffle and the fixed seat are connected through a rotary pair and can rotate relative to the fixed seat, and a rotating shaft of the rotary baffle is connected with the motor A and can be driven by the motor A to rotate. The switching valve with the structural design has simple structure and is easy to realize that the rotating baffle plate rotates relative to the fixed seat; in addition, the motor drives the rotating baffle to rotate, so that automatic opening and closing of the switching valve can be realized, and the operation is convenient.
Preferably, the electric valve comprises a pipeline joint, a valve plate which is matched with the pipeline joint is arranged in the pipeline joint, and the valve plate is connected with a motor B arranged on the pipeline joint and can be driven by the motor B to rotate. The electric valve with the structural design has the advantages of simple structure, easy implementation and convenient assembly and disassembly, and the valve plate is easy to rotate relative to the pipeline joint; in addition, the air output can be adjusted by controlling the rotation angle of the valve plate through the motor.
Preferably, the heat exchange core is hexagonal prism shaped, and the internal channel is S-shaped. In this case, the heat exchange efficiency is high.
Preferably, the heat exchange core is fixed in the shell through the insertion fit with the V-shaped slide way. The V-shaped slide way has a good guiding effect, the heat exchange core is matched with the V-shaped slide way, and the heat exchange core is convenient for workers to assemble and take in the process of installing the full heat exchanger.
In the ground return air type total heat exchanger, the fresh air inlet, the fresh air outlet and the dirty air outlet can be arranged in such a way that the fresh air inlet is arranged at the side part of the shell, and the fresh air outlet and the dirty air outlet are arranged at the top part of the shell; or the fresh air inlet and the dirty air outlet are arranged on the side part of the shell, and the fresh air outlet is arranged on the top of the shell. Furthermore, 4 dirty air return inlets can be arranged on the dirty air return box, and the shape of the dirty air return inlet is long waist. The shape is beautiful and elegant, and the decorative plate is suitable for occasions with high decorative requirements like a living room.
Drawings
Fig. 1 is a schematic structural view of a ground return type total heat exchanger according to the present invention;
fig. 2 is a schematic structural diagram of a switching valve in the present invention;
fig. 3 is a schematic structural diagram of an electrically operated valve in the present invention;
fig. 4 is a schematic structural view of an embodiment of the ground return type all heat exchanger of the present invention;
fig. 5 is a schematic view showing the flow direction of air in the external circulation mode of the ground return type total heat exchanger of the present invention;
fig. 6 is a schematic view showing the flow direction of air in the internal circulation mode of the earth return type total heat exchanger of the present invention;
fig. 7 is a schematic view showing the flow direction of air in the air mixing mode of the ground return type total heat exchanger of the present invention.
The labels in the figures are: 1-shell, 11-fresh air inlet, 12-fresh air outlet, 13-dirty air outlet, 14-fresh air inlet area, 15-dirty air inlet area, 16-fresh air outlet area and 17-dirty air outlet area; 2-heat exchange core; 3-a filter assembly; 4-a first centrifugal fan; 5-a second centrifugal fan; 6-dirty air return box, 61-dirty air return port; 7-switching valve, 71-fixing seat, 72-rotating baffle and 73-motor A; 8-electric valve, 81-pipe joint, 82-valve plate, 83-motor B; 9-V type slide way.
Detailed Description
The following description is made with reference to the accompanying drawings and examples, but not to be construed as limiting the invention.
Referring to fig. 1 to 3, the ground return air type total heat exchanger of the present invention includes a casing 1, wherein the casing 1 is provided with a fresh air inlet 11, a fresh air outlet 12 and a dirty air outlet 13; a heat exchange core 2 is arranged in the shell 1; the area for installing the heat exchange core 2 in the shell 1 is a heat exchange area, and the rest areas are divided into a fresh air inlet area 14, a dirty air inlet area 15, a fresh air outlet area 16 and a dirty air outlet area 17 through a group of partition plates; the fresh air inlet area 14 is communicated with a fresh air inlet 11, the fresh air outlet area 16 is communicated with a fresh air outlet 12, and the dirty air outlet area 17 is communicated with a dirty air outlet 13; in the fresh air inlet area 14, a filter component 3 for filtering fresh air is arranged between the fresh air inlet 11 and the fresh air channel of the heat exchange core 2; a first centrifugal fan 4 is arranged in the fresh air outlet area 16 corresponding to the fresh air outlet 12; a second centrifugal fan 5 is arranged in the dirty air outlet area 17 corresponding to the dirty air outlet 13; a dirty air return box 6 is arranged at the bottom of the shell 1, and at least one dirty air return opening 61 is arranged on the dirty air return box 6; the dirty air inlet area 15 is communicated with a dirty air return opening 61; a switching valve 7 is arranged between a fresh air inlet area 14 and a dirty air outlet area 17 in the shell 1, and when the switching valve 7 is in an open state, the fresh air inlet 11 is directly communicated with the dirty air outlet 13; an electric valve 8 is arranged at the fresh air inlet 11.
In the utility model, the fresh air inlet area 14, the heat exchange area and the fresh air outlet area 16 form a fresh air flow channel; the dirty air inlet area 15, the heat exchange area and the dirty air outlet area 17 form an air exhaust flow channel; the new trend runner is crisscross form with the exhaust runner, and new trend and foul wind carry out the heat exchange through the heat exchange membrane in heat exchange core 2, play the heat preservation effect.
As a specific example: referring to fig. 2, the switching valve 7 includes a fixed seat 71 and a rotary shutter 72; the rotating baffle 72 and the fixed seat 71 are connected through a revolute pair and can rotate relative to the fixed seat 71, and the rotating shaft of the rotating baffle 72 is connected with a motor A73 and can be driven by a motor A73 to rotate. The switching valve 7 with the structural design has simple structure, is convenient to manufacture, and is easy to realize that the rotating baffle 72 rotates relative to the fixed seat 71; in addition, the motor drives the rotary baffle 72 to rotate, so that the switching valve 7 can be automatically opened and closed, and the operation is convenient.
As a specific example: referring to fig. 3, the electric valve 8 includes a pipe joint 81, a valve plate 82 is mounted inside the pipe joint 81, and the valve plate 82 is connected to a motor B83 mounted on the pipe joint 81 and can be driven by a motor B83 to rotate. The electric valve 8 with the structural design has simple structure, easy implementation and convenient assembly and disassembly, and the valve plate 82 is easy to rotate relative to the pipeline joint 81; in addition, the air output can be adjusted by controlling the rotation angle of the valve plate 82 through the motor.
As a specific example: the heat exchange core 2 is in a hexagonal prism shape, and an internal channel is in an S shape. In this case, the heat exchange efficiency is high.
As a specific example: the heat exchange core 2 is fixed in the shell 1 through the insertion fit with the V-shaped slide 9. V type slide 9 has fine guide effect, and heat exchange core 2 cooperatees with V type slide 9, makes things convenient for the staff to adorn heat exchange core 2 and get at the in-process of installing full heat exchanger.
As a specific example: referring to fig. 1, the fresh air inlet 11 is arranged at a side part of the housing 1; the fresh air outlet 12 and the dirty air outlet 13 are arranged at the top of the shell 1; and 4 dirty air return ports 61 are arranged on the dirty air return box 6, and the shape of the dirty air return port is long waist.
As a specific example: referring to fig. 4, the fresh air inlet 11 and the dirty air outlet 13 are arranged on the side part of the shell 1, and the fresh air outlet 12 is arranged on the top part of the shell 1; and 4 dirty air return ports 61 are arranged on the dirty air return box 6, and the shape of the dirty air return port is long waist.
The motor A73 and the motor B83 can select vector motors, the positions of the rotary baffle 72 and the valve plate 82 can be accurately controlled by adopting the vector motors, the low-frequency torque of the vector motors is large, the speed response is fast, the output and the utilization rate are high, electricity is saved, and the noise generated during the work is small. The user can be used for the indoor air quality of real-time detection at indoor installation air quality detector to link to each other motor A73, motor B83 and controller, when detecting indoor air quality not good, the user can be through control panel or cell-phone APP mode control motor A73 and motor B83's operation, and then control switching valve 7 and motorised valve 8 work.
The term "top", "side" and "bottom" in the present invention refer to the states shown in fig. 1.
Referring to fig. 5, the switching valve 7 is closed, the fresh air channel and the exhaust channel are staggered, indoor dirty air is separated from outdoor fresh air, the fresh air enters the fresh air inlet area 14 from the fresh air inlet 11, is filtered by the filter assembly 3, enters the heat exchange core 2 for heat exchange, enters the fresh air outlet area 16 and enters the indoor from the fresh air outlet 12; indoor dirty air enters the dirty air inlet area 15 from the dirty air return opening 61, flows through the heat exchange core 2 for heat exchange, enters the dirty air outlet area 17 and is discharged out of the room from the dirty air outlet 13; this mode is an external circulation mode, which can be selected when the user feels that outdoor weather is good and indoor air quality is not good.
Referring to fig. 6, when the electric valve 8 is closed, that is, the fresh air inlet 11 is closed, the switching valve 7 is opened, indoor dirty air enters the dirty air inlet area 15 from the dirty air return opening 61, and enters the dirty air outlet area 17 after heat exchange is performed by the heat exchange core 2, because the rotating speed of the second centrifugal fan 5 is low, dirty air enters the fresh air inlet area 14 from the switching valve 7, is filtered by the filter assembly 3, enters the heat exchange core 2 for heat exchange, and finally enters the fresh air outlet area 16 and enters the indoor from the fresh air outlet 12; the mode is an internal circulation mode, and when a user feels that indoor air quality is good or when the user feels that outdoor weather conditions are not good (for example, air humidity is too high, haze is severe, sand storm weather and the like), the mode can be switched to the internal circulation mode. When in the internal circulation mode, the second centrifugal fan 5 is controlled to operate at a lower set rotating speed, so that almost no air flows in the dirty air outlet area 17, and outdoor air is prevented from being filled into a room from the dirty air outlet 13 in the internal circulation mode; the method for determining the set rotating speed is to ensure that the first centrifugal fan 4 operates in a standard state when the total heat exchanger is switched to the internal circulation mode, and continuously adjust the rotating speed of the second centrifugal fan 5 until the set rotating speed is determined after almost no air flows at the dirty air outlet 13 (which may be a flow speed <0.2 m/s).
Referring to fig. 7, the switching valve 7 is opened, when the rotating speed of the first centrifugal fan 4 is greater than that of the second centrifugal fan 5, indoor dirty air enters the dirty air inlet area 15 from the dirty air return opening 61, enters the dirty air outlet area 17 after being subjected to heat exchange by the heat exchange core 2, then enters the fresh air inlet area 14 from the switching valve 7, outdoor fresh air enters the fresh air inlet area 14 from the fresh air inlet 11, and indoor dirty air and outdoor fresh air are mixed with each other; the mode is a wind mixing mode, and when a user feels that the indoor air quality is general and not particularly poor, the mode can be switched to, so that the waste of energy is avoided.
The above general description of the invention and the description of its specific embodiments in this application should not be construed as limiting the scope of the invention. Those skilled in the art can add, reduce or combine the technical features disclosed in the general description and/or the specific embodiments (including the examples) to form other technical solutions within the scope of the present application according to the disclosure of the present application without departing from the components of the present invention.

Claims (8)

1. The ground return air type full heat exchanger is characterized in that: the device comprises a shell (1), wherein a fresh air inlet (11), a fresh air outlet (12) and a dirty air outlet (13) are formed in the shell (1); a heat exchange core (2) is arranged in the shell (1); the area for installing the heat exchange core (2) in the shell (1) is a heat exchange area, and the rest areas are divided into a fresh air inlet area (14), a dirty air inlet area (15), a fresh air outlet area (16) and a dirty air outlet area (17) through a group of partition plates; the fresh air inlet area (14) is communicated with the fresh air inlet (11), the fresh air outlet area (16) is communicated with the fresh air outlet (12), and the dirty air outlet area (17) is communicated with the dirty air outlet (13); a filter assembly (3) for filtering fresh air is arranged between the fresh air inlet (11) and a fresh air channel of the heat exchange core (2) in the fresh air inlet area (14); a first centrifugal fan (4) is arranged in the fresh air outlet area (16) corresponding to the fresh air outlet (12); a second centrifugal fan (5) is arranged in the dirty air outlet area (17) corresponding to the dirty air outlet (13); a dirty air return box (6) is arranged at the bottom of the shell (1), and at least one dirty air return opening (61) is formed in the dirty air return box (6); the dirty air inlet area (15) is communicated with a dirty air return opening (61); a switching valve (7) is arranged between a fresh air inlet area (14) and a dirty air outlet area (17) in the shell (1), and when the switching valve (7) is in an open state, the fresh air inlet (11) is directly communicated with the dirty air outlet (13); an electric valve (8) is arranged at the fresh air inlet (11).
2. The earth-return type all heat exchanger according to claim 1, wherein: the switching valve (7) comprises a fixed seat (71) and a rotary baffle (72); the rotating baffle (72) and the fixed seat (71) can rotate relative to the fixed seat (71) through the connection of a rotating pair, and the rotating shaft of the rotating baffle (72) is connected with the motor A (73) and can be driven by the motor A (73) to rotate.
3. The earth-return type all heat exchanger according to claim 1, wherein: the electrically operated valve (8) comprises a pipeline joint (81), a valve plate (82) matched with the pipeline joint (81) is arranged inside the pipeline joint, and the valve plate (82) is connected with a motor B (83) arranged on the pipeline joint (81) and can be driven by the motor B (83) to rotate.
4. The earth-return type all heat exchanger according to claim 1, wherein: the heat exchange core (2) is in a hexagonal prism shape, and an internal channel is in an S shape.
5. The earth-return type all heat exchanger according to claim 4, wherein: the heat exchange core (2) is fixed in the shell (1) through the insertion fit with the V-shaped slide way (9).
6. The earth-return type all-heat exchanger according to any one of claims 1 to 5, wherein: the fresh air inlet (11) is arranged on the side part of the shell (1); the fresh air outlet (12) and the dirty air outlet (13) are arranged at the top of the shell (1).
7. The earth-return type all-heat exchanger according to any one of claims 1 to 5, wherein: the fresh air inlet (11) and the dirty air outlet (13) are arranged on the side part of the shell (1); the fresh air outlet (12) is arranged at the top of the shell (1).
8. The earth-return type all-heat exchanger according to any one of claims 1 to 5, wherein: and 4 dirty air return ports (61) are arranged on the dirty air return box (6), and the shape of the dirty air return port is long waist.
CN202020823837.7U 2020-05-16 2020-05-16 Ground return air type full heat exchanger Active CN212777757U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020823837.7U CN212777757U (en) 2020-05-16 2020-05-16 Ground return air type full heat exchanger

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020823837.7U CN212777757U (en) 2020-05-16 2020-05-16 Ground return air type full heat exchanger

Publications (1)

Publication Number Publication Date
CN212777757U true CN212777757U (en) 2021-03-23

Family

ID=75067730

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020823837.7U Active CN212777757U (en) 2020-05-16 2020-05-16 Ground return air type full heat exchanger

Country Status (1)

Country Link
CN (1) CN212777757U (en)

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