CN212408969U - Frequency conversion total heat recovery fresh air machine capable of switching working conditions - Google Patents
Frequency conversion total heat recovery fresh air machine capable of switching working conditions Download PDFInfo
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- CN212408969U CN212408969U CN202020642450.1U CN202020642450U CN212408969U CN 212408969 U CN212408969 U CN 212408969U CN 202020642450 U CN202020642450 U CN 202020642450U CN 212408969 U CN212408969 U CN 212408969U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/56—Heat recovery units
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Abstract
The utility model belongs to the technical field of air purification, specifically be a new fan of frequency conversion total heat recovery of changeable operating mode. Comprises a new/exhaust fan, an electric air adjusting door, a total heat exchanger, a new/exhaust main channel, a new/exhaust bypass channel and a controller; the fresh air fan and the exhaust fan are respectively arranged in the fresh air main channel and the exhaust main channel; the pipeline of the new/exhaust main channel passes through the total heat exchanger, one end of the two channels is connected with the outside, and the other end is connected with the inside; the two ends of the pipeline of the new/exhaust bypass channel are respectively connected with the pipelines of the new/exhaust main channels at the two sides of the total heat exchanger, so that the air flow can only pass through the new/exhaust bypass channel without passing through the total heat exchanger; the electric air adjusting doors are respectively arranged in the new/exhaust main channel and the new/exhaust bypass channel, can open/close the channels and are controlled by the controller; the utility model discloses simple structure can carry out the cold and hot volume of airing exhaust and retrieve in winter and summer, and transition season is energy-conserving to realize the cooling of full new trend, reduces the meaningless loss of energy, practices thrift the energy consumption.
Description
Technical Field
The utility model belongs to the technical field of air purification, concretely relates to new fan of frequency conversion total heat recovery of changeable operating mode.
Background
In recent years, the concepts of building energy conservation and green buildings are deeply thought, in a ventilation air-conditioning system, the cold and heat recovery of the exhaust air in summer and winter can be realized through a total heat exchanger, the total heat exchanger can exchange heat between indoor exhaust air and outdoor fresh air, and the cold and heat of the exhaust air is used for carrying out cold and heat treatment on the fresh air, so that the energy recovery and utilization are realized. On the other hand, under the condition that the air conditioner is still needed for cooling in the transitional season, because the outdoor fresh air is low in temperature and the indoor cooling load is reduced, the adoption of the full fresh air cooling mode is an energy-saving mode, and the energy consumed by refrigeration can be saved. However, when the total heat exchanger is used for providing fresh air and mechanical exhaust air, the fresh air and the exhaust air must pass through the heat exchanger, but the fresh air cannot exchange heat with the exhaust air because the fresh air is a cold source, so that the common total heat exchanger cannot realize a mode of cooling by the fresh air. The utility model relates to a to current full heat exchanger optimize the improvement on the structural design and the control principle, make it realize the function of two kinds of modes of cold and hot volume recovery of airing exhaust and the full new trend cooling in transition season.
Disclosure of Invention
An object of the utility model is to provide a simple structure, the new fan of frequency conversion total heat recovery of changeable operating mode of energy-conserving effectual.
The utility model provides a frequency conversion total heat recovery new fan of changeable operating mode, including frequency conversion centrifugation new fan, frequency conversion centrifugation exhaust fan, electronic air register, total heat exchanger, new trend main entrance, exhaust main entrance, new trend by pass, exhaust by pass and controller;
the variable-frequency centrifugal fresh air fan is arranged in the fresh air main channel, and the variable-frequency centrifugal exhaust fan is arranged in the exhaust main channel;
the pipeline of the fresh air main channel penetrates through the total heat exchanger; one end is connected with the outside and is used as a fresh air inducing port; the other end is connected with an indoor air supply pipe which is used as a fresh air supply outlet;
the pipeline of the main exhaust channel passes through the total heat exchanger; one end is connected with the indoor and is used as an air exhaust and induction port; the other end is connected with the outside and is used as an air exhaust outlet;
the two ends of the pipeline of the fresh air bypass channel are respectively connected with the fresh air main channel pipelines at the two sides of the total heat exchanger, so that the air flow can pass through the fresh air bypass channel from the fresh air induced port to the fresh air supply port without passing through the total heat exchanger;
the two ends of the pipeline of the exhaust bypass channel are respectively connected with the main exhaust channel pipelines at the two sides of the total heat exchanger, so that the air flow can pass through the exhaust bypass channel from the exhaust air induction port to the exhaust air outlet without passing through the total heat exchanger;
the electric air adjusting doors are respectively arranged in the fresh air main channel, the air exhaust main channel, the fresh air side channel and the air exhaust side channel and can open/close the channels; wherein:
when the electric air adjusting doors of the fresh air main channel and the air exhaust main channel are opened, the electric air adjusting doors of the air exhaust main channel and the fresh air side channel are closed, and at the moment, the air flow in the fresh air main channel and the air exhaust main channel can only pass through the total heat exchanger;
when the electric air adjusting doors of the fresh air main channel and the air exhaust main channel are closed, the electric air adjusting doors of the air exhaust main channel and the fresh air bypass channel are opened, and at the moment, air flows in the fresh air main channel and the air exhaust main channel do not pass through the total heat exchanger and only can pass through the fresh air bypass channel and the air exhaust bypass channel respectively;
the controller is in control connection with the variable-frequency centrifugal fresh air fan, the variable-frequency centrifugal exhaust fan and the electric air adjusting door; the controller can control the air volume of the same-frequency-conversion centrifugal fresh air fan and the frequency-conversion centrifugal exhaust fan and control the opening and closing of the electric air adjusting door.
In the utility model, a temperature sensor is arranged at the fresh air inducing port and is connected with a controller; for switching the operation mode of the device according to the outdoor temperature.
The utility model is also provided with CO2The sensor is arranged indoors and is connected with the controller; the device is used for collecting the carbon dioxide concentration of a room and adjusting the fan rotating speed of the variable-frequency centrifugal fresh air fan and the variable-frequency centrifugal exhaust fan according to the change of the carbon dioxide concentration.
The utility model discloses when moving, when winter and summer, the device moves under the heat recovery operating mode, and the new trend main entrance, the electronic air regulation door on the main entrance of airing exhaust are opened, and the new trend by-pass is said, the electronic air regulation door on the by-pass of airing exhaust is closed, and the new trend, the cold and heat recovery and the conversion of airing exhaust through full heat exchanger carry out, and frequency conversion centrifugation new fan and exhaust fan move on the rotational speed of predetermineeing the amount of wind, simultaneously, if CO is in summer and winter, if the rotational speed of CO2When the sensor receives that the concentration of carbon dioxide in a typical intensive personnel room exceeds a set value, the fresh air exhaust fan increases the air flow to operate; in the transitional spring and autumn, when a temperature sensor arranged at a fresh air inlet detects that the temperature of fresh air enters a set range, the device is switched to the operation of a full fresh air working condition, an electric air adjusting door on a fresh air main channel and an exhaust main channel is closed, an electric air adjusting door on a fresh air bypass channel and an exhaust bypass channel is opened, the fresh air and the exhaust air do not exchange heat through a full heat exchanger any more, and the rotating speeds of a variable-frequency centrifugal fresh air fan and an exhaust fan are increased to the full fresh air quantity to operate.
The utility model discloses simple structure improves based on current new trend device, can exhaust cold and hot volume and retrieve winter and summer season, and transition season is energy-conserving to realize the cooling of full new trend, reduces the meaningless loss of energy, practices thrift the energy consumption.
Drawings
Fig. 1 is a schematic view of the top view structure of the present invention.
Fig. 2 is a schematic side view of the structure of the present invention.
Reference numbers in the figures: 1 is a frequency centrifugal fresh air fan, 2 is a frequency conversion centrifugal exhaust fan, 3 is an electric air adjusting door, 4 is a total heat exchanger, 5 is a fresh air main channel, 6 is an exhaust main channel, 7 is a fresh air side channel, 8 is an exhaust side channel, 9 is a temperature sensor, and 10 is CO2Sensor, 11 is controlAnd (5) manufacturing a device.
Detailed Description
The utility model discloses a new fan of frequency conversion centrifugation 1, frequency conversion centrifugation exhaust fan 2, four electronic air register 3, full heat exchanger 4, new trend main entrance 5, the main entrance 6, new trend by pass 7, the by pass 8, temperature sensor 9, CO of airing exhaust by pass2A sensor 10 and a controller 11.
The variable-frequency centrifugal fresh air fan 1 is arranged in a fresh air main channel 5, and the variable-frequency centrifugal exhaust fan 2 is arranged in an exhaust main channel 6; the shell of the total heat exchanger 4 adopts a diamond structure, and air ports for butt joint are arranged on four surfaces of the shell; the pipeline of the fresh air main channel 5 passes through the total heat exchanger 4; one end is connected with the outside and is used as a fresh air inducing port; the other end is connected with an indoor air supply pipe which is used as a fresh air supply outlet; the pipeline of the main exhaust channel 6 passes through the total heat exchanger 4; one end is connected with indoor air exhaust and used as an air exhaust induced draft; the other end is connected with the outside and is used as an air exhaust outlet; the heat of air inlet and air outlet is exchanged in the total heat exchanger 4, and the structure of the existing fresh air machine with the total heat exchanger can be specifically referred.
The pipeline of the fresh air bypass channel 7 is a single air pipe, and two ends of the fresh air bypass channel are respectively in pipeline connection with the fresh air main channels 5 at two sides of the total heat exchanger 4, so that air flow can pass through the fresh air bypass channel 7 from the fresh air induced port to the fresh air supply port without passing through the total heat exchanger 4; electric air adjusting doors 3 are arranged at the joints of the two ends of the fresh air bypass channel 7 and the pipeline of the fresh air main channel 5, and the fresh air bypass channel 7 can be closed and opened;
the pipeline of the exhaust bypass channel 8 is a single air pipe, and two ends of the exhaust bypass channel are respectively connected with the pipelines of the exhaust main channels 6 at two sides of the total heat exchanger 4, so that air flow can pass through the exhaust bypass channel 8 from the exhaust air induction port to the exhaust air outlet without passing through the total heat exchanger 4; the joints of the two ends of the exhaust bypass channel 8 and the pipeline of the main exhaust channel 6 are provided with electric air adjusting doors 3 which can close and open the exhaust bypass channel 8.
The fresh air main channel 5 and the air exhaust main channel 6 are connected with the total heat exchanger 4, and are also provided with electric air adjusting doors 3, and the electric air adjusting doors 3 are closed, namely, air channels of the fresh air main channel 5 and the air exhaust main channel 6 and the total heat exchanger 4 are cut off;
when the electric air adjusting doors 3 of the fresh air main channel 5 and the air exhaust main channel 6 are opened, the electric air adjusting doors 3 of the air exhaust main channel 6 and the fresh air side channel 7 are closed, and at the moment, the air flow in the fresh air main channel 5 and the air exhaust main channel 6 can only pass through the total heat exchanger 4; when the fresh air main channel 5 and the electric air adjusting door 3 of the air exhaust main channel 6 are closed, the electric air adjusting door 3 of the air exhaust main channel 6 and the fresh air bypass channel 7 is opened, and at the moment, the air flow in the fresh air main channel 5 and the air exhaust main channel 6 does not pass through the total heat exchanger 4 and can only pass through the fresh air bypass channel 7 and the air exhaust bypass channel 8 respectively.
The variable-frequency centrifugal fresh air machine 1, the variable-frequency centrifugal exhaust fan 2, the electric air adjusting door 3, the temperature sensor 9 and the CO2The sensors 10 are all connected with a controller 11; wherein:
the controller 11 is in control connection with the variable-frequency centrifugal fresh air fan, the variable-frequency centrifugal exhaust fan and the electric air adjusting door 3; the controller 11 can control the rotating speed (namely, the air volume adjustment) of the same-frequency-conversion centrifugal fresh air fan and the frequency-conversion centrifugal exhaust fan and control the opening and closing of the electric air damper 3;
the temperature sensor 9 is arranged at the fresh air draught port, and the temperature sensor 9 is connected with the controller 11; the temperature sensor 9 sends the measured temperature signal to the controller 11, and the controller automatically adjusts the rotating speed of the variable-frequency centrifugal fresh air fan 1 and the variable-frequency centrifugal exhaust fan 2 according to the built-in preset temperature data through the outdoor temperature, switches the electric air adjusting door 3 to open and close, and adjusts whether the flow channel of the air passes through the total heat exchanger 4 or not;
the CO is2The sensor 10 is arranged indoors and is connected with the controller 11; the device is used for collecting the carbon dioxide concentration of a room and adjusting the fan rotating speed of the variable-frequency centrifugal fresh air fan and the variable-frequency centrifugal exhaust fan according to the change of the carbon dioxide concentration.
The utility model discloses when moving, when winter and summer, the device moves under the heat recovery operating mode, and the electronic air damper 3 and 5 on the main entrance of newly airing exhaust are opened, and electronic air damper 4 and 6 on the new, air exhaust by-pass are closed, and the cold and heat volume that new return air was aired exhaust through heat exchange core is retrieved, and new fan of frequency conversion centrifugation and exhaust fan rotational speed operate on the new amount of wind of design, simultaneously, if CO2Sensor receiving typical person passwordWhen the concentration of carbon dioxide in the room exceeds a set value, the fresh air exhaust fan increases the air flow to operate;
however, in the transition season of spring and autumn, because the outdoor fresh air temperature is lower and the indoor cooling load is reduced, the adoption of outdoor temperature full fresh air cooling is an energy-saving mode, and the energy consumed by refrigeration can be saved; fresh air inlet and exhaust do not need to be cooled or heated; when a temperature sensor arranged at the fresh air inlet detects that the temperature of fresh air enters a set range, the device is switched to the operation of a full fresh air working condition, the electric air adjusting doors on the fresh air main channel and the air exhaust main channel are closed, the electric air adjusting doors on the fresh air bypass channel and the air exhaust bypass channel are opened, the fresh air and the return air do not exchange heat any more, the rotating speeds of the variable-frequency centrifugal fresh air fan and the exhaust fan are increased to the fresh air quantity to operate, and the unnecessary heat loss is reduced.
While, for purposes of simplicity of explanation, the above-described methodologies are shown and described as a series of structures, it is to be understood and appreciated that the methodologies are not limited by detail, as some structures may, in accordance with one or more embodiments, occur in different orders and/or concurrently with other acts from that shown and described herein or not shown and described herein, but as may be understood by those of ordinary skill in the art.
The previous description of the disclosure is provided to enable any person skilled in the art to make or use the disclosure. Various modifications to the disclosure will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other variations without departing from the spirit or scope of the disclosure. Thus, the disclosure is not intended to be limited to the examples and designs described herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (3)
1. A frequency conversion total heat recovery fresh air fan capable of switching working conditions is characterized by comprising a frequency conversion centrifugal fresh air fan, a frequency conversion centrifugal exhaust fan, an electric air adjusting door, a total heat exchanger, a fresh air main channel, an exhaust air main channel, a fresh air side channel, an exhaust air side channel and a controller;
the variable-frequency centrifugal fresh air fan is arranged in the fresh air main channel, and the variable-frequency centrifugal exhaust fan is arranged in the exhaust main channel;
the pipeline of the fresh air main channel penetrates through the total heat exchanger; one end is connected with the outside and is used as a fresh air inducing port; the other end is connected with an indoor air supply pipe which is used as a fresh air supply outlet;
the pipeline of the main exhaust channel passes through the total heat exchanger; one end is connected with the indoor and is used as an air exhaust and induction port; the other end is connected with the outside and is used as an air exhaust outlet;
the two ends of the pipeline of the fresh air bypass channel are respectively connected with the fresh air main channel pipelines at the two sides of the total heat exchanger, so that the air flow can pass through the fresh air bypass channel from the fresh air induced port to the fresh air supply port without passing through the total heat exchanger;
the two ends of the pipeline of the exhaust bypass channel are respectively connected with the main exhaust channel pipelines at the two sides of the total heat exchanger, so that the air flow can pass through the exhaust bypass channel from the exhaust air induction port to the exhaust air outlet without passing through the total heat exchanger;
the electric air adjusting doors are respectively arranged in the fresh air main channel, the air exhaust main channel, the fresh air side channel and the air exhaust side channel and can open/close the channels; wherein:
when the electric air adjusting doors of the fresh air main channel and the air exhaust main channel are opened, the electric air adjusting doors of the air exhaust main channel and the fresh air side channel are closed, and at the moment, the air flow in the fresh air main channel and the air exhaust main channel can only pass through the total heat exchanger;
when the electric air adjusting doors of the fresh air main channel and the air exhaust main channel are closed, the electric air adjusting doors of the air exhaust main channel and the fresh air bypass channel are opened, and at the moment, air flows in the fresh air main channel and the air exhaust main channel do not pass through the total heat exchanger and only can pass through the fresh air bypass channel and the air exhaust bypass channel respectively;
the controller is in control connection with the variable-frequency centrifugal fresh air fan, the variable-frequency centrifugal exhaust fan and the electric air adjusting door; the controller can control the air volume of the same-frequency-conversion centrifugal fresh air fan and the frequency-conversion centrifugal exhaust fan and control the opening and closing of the electric air adjusting door.
2. The frequency conversion total heat recovery fresh air fan as claimed in claim 1, wherein a temperature sensor is arranged at the fresh air induction port, and the temperature sensor is connected with the controller; for switching the operation mode of the device according to the outdoor temperature.
3. The frequency conversion total heat recovery fresh air machine according to claim 1 or 2, characterized in that CO is further provided2The sensor is arranged indoors and is connected with the controller; the device is used for collecting the carbon dioxide concentration of a room and adjusting the fan rotating speed of the variable-frequency centrifugal fresh air fan and the variable-frequency centrifugal exhaust fan according to the change of the carbon dioxide concentration.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020642450.1U CN212408969U (en) | 2020-04-26 | 2020-04-26 | Frequency conversion total heat recovery fresh air machine capable of switching working conditions |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202020642450.1U CN212408969U (en) | 2020-04-26 | 2020-04-26 | Frequency conversion total heat recovery fresh air machine capable of switching working conditions |
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| CN212408969U true CN212408969U (en) | 2021-01-26 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108386A (en) * | 2021-04-30 | 2021-07-13 | 西藏宁算科技集团有限公司 | Air conditioning unit with wet film humidification function |
| CN117804007A (en) * | 2024-01-03 | 2024-04-02 | 中建中原建筑设计院有限公司 | Kitchen ventilation heat recovery device |
-
2020
- 2020-04-26 CN CN202020642450.1U patent/CN212408969U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113108386A (en) * | 2021-04-30 | 2021-07-13 | 西藏宁算科技集团有限公司 | Air conditioning unit with wet film humidification function |
| CN117804007A (en) * | 2024-01-03 | 2024-04-02 | 中建中原建筑设计院有限公司 | Kitchen ventilation heat recovery device |
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