CN110848901A - Temperature-controllable air heat recovery device and control method thereof - Google Patents
Temperature-controllable air heat recovery device and control method thereof Download PDFInfo
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/65—Electronic processing for selecting an operating mode
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F12/00—Use of energy recovery systems in air conditioning, ventilation or screening
- F24F12/001—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air
- F24F12/002—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid
- F24F2012/005—Use of energy recovery systems in air conditioning, ventilation or screening with heat-exchange between supplied and exhausted air using an intermediate heat-transfer fluid using heat pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/50—Load
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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
Abstract
The invention discloses a temperature-controllable air heat recovery device and a control method thereof, and belongs to the field of building energy conservation and ventilation. The air heat recovery device adopts the heat pipe and thermopile integration technology, enhances the fresh air heat recovery efficiency of a single heat pipe, improves the compactness and enhances the heat transfer in the heat pipe thermopile combination mode, and can achieve the temperature control function through a corresponding control method. The device comprises a fresh air side heat pipe group (1), an exhaust side heat pipe group (2), a thermopile (3), a heat pipe thermopile connecting sleeve head (4) and a current controller (13). The heat of the exhaust air is recovered in winter to heat the fresh air, and the cold of the exhaust air is recovered in summer to cool the fresh air. The current controller (13) can adjust the refrigerating capacity or the heating capacity of the heat exchange core so as to maintain the set temperature. The device adopts the heat pipe thermopile integration technology, and is small in size, controllable in temperature, applicable to household window type fresh air fans, free of influence on indoor attractiveness after installation, and good in development prospect.
Description
Technical Field
The invention belongs to the field of building energy conservation and ventilation, and relates to a temperature-controllable air heat recovery device and a control method thereof.
Background
With the increasing demand of people for living environment, the indoor air quality becomes an important factor for determining the living environment. Under such a trend, the use of new wind turbines is becoming more and more popular. The new fan on the market is divided into two kinds, one kind has the heat recovery function and the other kind does not have the heat recovery function.
The domestic new fan without heat recovery can bring indoor cold or heat to the outdoor when ventilating, thus causing energy waste. Most of the heat exchange cores in the fresh air machine with the heat recovery function are plate-type and large in size, so that the size of the fresh air machine is large, and the indoor attractiveness is greatly influenced.
The heat pipe is a heat exchange device with high-efficiency heat exchange capacity, and the heat conduction capacity of the heat pipe exceeds that of any known metal because the heat pipe realizes heat transfer by means of phase change of internal working media. And the volume is small, the space is not occupied, and the method is very suitable for a household window type new fan heat recovery system. However, the heat transfer efficiency of the fresh air fan using the single heat pipe structure heat exchanger has a higher promotion space due to smaller heat transfer temperature difference. The thermopile is a semiconductor refrigeration device, can make its surface temperature change through applying external current, combines in the heat pipe with it and can improve the heat transfer difference in temperature of heat pipe, increases the heat exchange efficiency of heat pipe itself, but because most thermopile surfaces are the plane, and traditional heat pipe surface is the curved surface, and the simple combination of the two will lead to the contact surface to be a line face, can not reach a fine heat transfer effect.
Disclosure of Invention
The invention aims to solve the problems of energy consumption caused by indoor ventilation and overlarge volume of the traditional heat exchange core and provides a temperature-controllable air heat recovery device and a control method thereof.
The purpose of the invention can be realized by the following technical scheme:
a temperature-controllable air heat recovery device comprises a fresh air side heat pipe group, an exhaust side heat pipe group, a thermopile, a heat pipe thermopile connecting sleeve head, an exhaust side temperature probe, a fresh air side temperature probe and a current controller;
the fresh air side heat pipe group and the exhaust air side heat pipe group are respectively connected with the thermopile through heat pipe thermopile sleeve heads; the fresh air side heat pipe group is connected with the front face of the thermopile, the exhaust air side heat pipe group is connected with the back face of the thermopile, and the input current of the thermopile is controlled by the current controller; the current controller is connected with a first temperature probe and a second temperature probe; the first temperature probe is arranged on the side heat pipe group of the fresh air side; the second temperature probe is installed on the exhaust side heat pipe group.
The fresh air side heat pipe group and the exhaust side heat pipe group are both formed by 4 red copper heat pipes, one end of each heat pipe group is provided with a heat pipe thermopile connecting sleeve head, and the other end of each heat pipe group is in contact with air. The sleeve head is connected with the heat pipe and the thermopile to play the roles of heat conduction and heat insulation. Each heat pipe comprises a light pipe part and a part with fins, wherein the side of the light pipe is provided with a sleeve head, and the side of the fins is in contact with air for heat exchange.
The heat pipe thermopile connecting sleeve head is composed of a stainless steel shell, a vacuum layer, a heat conducting silicone layer and a red copper block. The heat-conducting silicone grease layer is used as a heat-conducting filling material of the heat pipe and the sleeve head, so that the tightness is enhanced, and the heat conduction effect is achieved. The red copper block is a bottom component of the sleeve head and can be tightly attached to the thermopile, so that the heat exchange area between the thermopile and the heat pipe heat exchange core is increased, and the heat conduction performance is improved. The vacuum layer is a vacuum interlayer in the sleeve head and is used for isolating heat conduction except the outer side of the bottom of the sleeve head, reducing the loss of heat or cold and only exchanging heat between the light pipe side of the heat pipe and the thermopile.
The heat pipe thermopile connecting sleeve head belongs to an annular structure, the inner side of the heat pipe thermopile connecting sleeve head is a circular ring surface and can be sleeved at the side end of a light pipe of a heat pipe, the outer surface of the heat pipe thermopile connecting sleeve head is a rectangular surface and can be in good contact with a thermopile, and the heat pipe can be installed in the sleeve head in an expansion joint mode.
The thermopile is sheet-shaped, the front side of the thermopile is connected with a fresh air side heat pipe group through a sleeve head, and the back side of the thermopile is connected with an exhaust side heat pipe group through a sleeve head. When current is supplied to the thermopile, the temperature difference is generated on the front and back sides of the thermopile. In winter, when a forward voltage is input to the thermopile, the temperature of the front side of the thermopile is increased, and the temperature of the back side of the thermopile is reduced. In summer, reverse voltage is input to the thermopile, the temperature of the front side of the thermopile is reduced, and the temperature of the back side of the thermopile is increased. Under the working condition in winter, exhaust air heats the evaporation section of the side heat pipe group at the exhaust side, working medium in the heat pipe evaporates, and working medium steam is condensed at the condensation section of the heat pipe to release heat to exchange heat with the back (cold end) of the thermopile; the front (hot end) of the thermopile heats the evaporation section of the hot air side heat pipe group, the working medium in the heat pipe is heated and evaporated, the working medium steam releases heat in the condensation section of the heat pipe, the fresh air is heated, and the exhaust heat is recovered. Under the summer working condition, the power supply is switched, the current is reversed, and the recovery of the cold energy of the exhaust air can be realized.
The current controller is connected with the two temperature probes and can receive signals of the temperature probes. The temperature probes are arranged on the exhaust side heat pipe group and the fresh air side heat pipe group. The temperature measured by the exhaust side probe is approximate to the indoor temperature value, and the temperature measured by the fresh air side probe is approximate to the outdoor temperature. The probe can convert the temperature signal into an electric signal and feed the electric signal back to the current controller. The current controller outputs corresponding current value through internal logic programming. The current controller controls the input current of the thermopile, and the refrigeration or heating capacity of the thermopile is adjusted according to the signal fed back by the temperature probe, so that the indoor temperature is monitored and controlled finally.
The invention also discloses a control method of the temperature-controllable air heat recovery device, which comprises the following steps:
firstly, setting a temperature value T0 by a user, and setting the temperature measured by a temperature probe at the exhaust side to be T1; the temperature measured by the fresh air side temperature probe is T2;
secondly, determining an output current value by comparing phase difference values among T0, T1 and T2; if the value is | T2-T0| < epsilon, the current controller does not output current, the thermopile does not work, if the value is | T2-T0| < epsilon, the phase difference value between T1 and T2 is judged, if T1 > T2 is established, the current controller outputs reverse current, and if T1 > T2 is not established, the current controller outputs forward current; epsilon is any small value, and the control precision is reflected;
thirdly, determining the magnitude of the output current value by comparing the phase difference value between T0 and T1; if the value of | T1-T0| < ε is true, the current controller maintains the current value; if the value of T1-T0 is less than epsilon, judging according to the current direction,
if the current is the forward current, judging whether T1 is more than T0, if T1 is more than T0, reducing the current by the current controller, and if T1 is more than T0, increasing the current by the current controller;
if the current is the reverse current, whether T1 is more than T0 is judged, if T1 is more than T0, the current controller increases the current, and if T1 is more than T0, the current controller decreases the current.
The temperature value set by the user is T0, and the temperature measured by the exhaust side temperature probe is T1, namely the current indoor temperature value. The temperature measured by the fresh air side temperature probe is T2, namely the outdoor temperature. The output current value is determined by comparing the phase difference values between T0, T1, and T2. The current controller firstly judges whether the phase difference value is within the acceptance range, then judges the direction of the input current, and then compares the values of T0 and T1 to determine the increase, decrease or maintenance of the current value, finally achieves the monitoring and control of the power of the heat recovery device, and realizes the control of the indoor temperature.
The invention relates to a temperature-controllable air heat recovery device and a control method thereof. Compared with the prior art, the invention adopts the thermopile and heat pipe integration technology to increase the heat transfer temperature difference of the original heat pipe heat exchanger. The heat pipe heat recovery fresh air machine overcomes the defect of low heat transfer efficiency caused by over-small heat transfer temperature difference. Meanwhile, the sleeve head is used for connecting the heat pipe and the thermopile, and the problem of contact between the curved surface of the heat pipe and the plane of the thermopile is solved. The sleeve head is of an annular structure, the inner side of the sleeve head is an arc surface which can be sleeved at one end of the heat pipe, and the outer surface of the sleeve head is a rectangular plane which is in good contact with the surface of the thermopile. The current controller can receive the information fed back by the temperature probe, control the power of the thermopile, further control the heat exchange amount of the heat recovery device, achieve the monitoring and control of the indoor temperature set value, and enable the heat recovery device to have the temperature control function.
Drawings
FIG. 1 is a schematic view of a heat recovery device;
FIG. 2 is a view of a heat pipe thermopile adapter;
FIG. 3 is a schematic view of a window type thermoelectric fresh air machine;
FIG. 4 is a diagram showing the logic control a of the current controller in the heat recovery device
Fig. 5 is a logic control b diagram of the current controller in the heat recovery device.
In the figure, 1-a fresh air side heat pipe group; 2-exhaust side heat pipe group; 3-thermopile; 4-connecting sleeve head of heat pipe thermopile; 5-a fin; 6-air intake cross flow fan; 7-air exhaust cross flow fan; 8-indoor side air outlet; 9-outdoor side air outlet; 10-outdoor side fresh air port; 11-indoor side fresh air inlet; 3-1-thermopile front; 3-2-thermopile back; 4-1-stainless steel housing; 4-2-vacuum layer; 4-3-heat conducting silicone layer; 4-red copper block; 12-temperature probe at exhaust side; 13-current controller; 14-temperature probe on fresh air side.
Detailed Description
The invention is described in detail below with reference to the figures and the specific embodiments.
Implementation example: a temperature-controllable air heat recovery device as shown in fig. 1-2, which comprises a fresh air side heat pipe group 1, an exhaust air side heat pipe group 2, a thermopile 3, a heat pipe thermopile connecting sleeve 4, an exhaust air side temperature probe 12, a fresh air side temperature probe 14 and a current controller 13;
the fresh air side heat pipe group 1 and the exhaust side heat pipe group 2 are respectively connected with the thermopile 3 through a heat pipe thermopile sleeve head 4; the fresh air side heat pipe group 1 is connected with the front side of the thermopile 3, the exhaust side heat pipe group is connected with the back side of the thermopile 3, and the input current of the thermopile 3 is controlled by the current controller 13; the current controller 13 is connected with a first temperature probe 12 and a second temperature probe 14; the first temperature probe is arranged on the side heat pipe group of the fresh air side; the second temperature probe is installed on the exhaust side heat pipe group.
The heat recovery device can be applied to a window type fresh air fan, the internal structure of the window type fresh air fan can be selected as shown in figure 3, and the window type fresh air fan comprises two cross-flow fans, an air inlet cross-flow fan 6 and an air exhaust cross-flow fan 7. The fresh air machine comprises four strip-shaped air openings, namely an indoor side air outlet 8, an outdoor side air outlet 9, an outdoor side fresh air opening 10 and an indoor side fresh air opening 11, wherein the indoor side air outlet 8 and the indoor side fresh air opening 11 are located on the lower portion of the fresh air machine on the same horizontal line, and the outdoor side air outlet 9 and the outdoor side fresh air opening 10 are located on the upper portion of the fresh air machine on the same horizontal line. The design of four air ports ensures that the outdoor fresh air and the indoor exhaust air carry out countercurrent cross heat exchange when passing through the heat recovery device.
The thermopile is essentially a semiconductor, and when current is applied to the thermopile, a temperature difference occurs between the front side 3-1 of the thermopile and the back side 3-2 of the thermopile according to the Peltier effect. The heat exchange temperature difference at two ends of the heat pipe is increased by inputting forward voltage, the temperature of the front surface of the thermopile is increased by 3-1, the temperature of the back surface of the thermopile is decreased by 3-2, the reverse voltage is input, the temperature of the front surface of the thermopile is decreased by 3-1, the temperature of the back surface of the thermopile is increased by 3-2, the light pipe side ends of the two heat pipe sets are contacted with the thermopile by the heat pipe thermopile connecting sleeve head 4, meanwhile, the contact area between the heat pipe and the thermopile is increased by adding the sleeve head, and the heat recovery efficiency of the original heat.
The specific structure of the heat pipe thermopile connecting sleeve head 4 is shown in fig. 2. The inner side of the sleeve is a circular ring surface and can be sleeved at one end of a heat pipe light pipe, the outer surface of the sleeve is a rectangular plane and is tightly attached to a thermopile, and the sleeve head comprises a stainless steel shell 4-1, a vacuum layer 4-2, a heat conduction silicone layer 4-3 and a red copper block 4-4. The sleeve head is connected with the heat pipe in an expansion joint mode, the sleeve head is made of stainless steel, the vacuum layer 4-2 structure is doped in the stainless steel, the bottom of the sleeve head is a red copper block, good contact with a thermopile is facilitated, and heat conduction is sufficient. The contact gap between the heat pipe and the sleeve head is a heat-conducting silicone grease layer 4-3, the heat-conducting silicone grease layer 4-3 is firstly coated on the inner wall of the sleeve head during installation, and then the heat pipe set is installed in an expansion joint mode. The heat recovery device comprises two heat pipe thermopile connecting sleeve heads 4, the thermopile connecting sleeve heads 4 are respectively arranged on the light pipe parts of the fresh air side heat pipe group 1 and the exhaust side heat pipe group 2, the front surface 3-1 of the thermopile corresponds to the purple copper block 4-4 of the fresh air side heat pipe group sleeve head, the back surface 3-2 of the thermopile corresponds to the purple copper block 4-4 of the exhaust side heat pipe group sleeve head, the two sleeve heads are connected by nylon screws, the thermopile 3 is clamped in the middle, the structure is compact, and the heat conduction effect is good.
Each of the fresh air side heat pipe group 1 and the exhaust air side heat pipe group 2 is composed of 4 heat pipes, and each heat pipe includes a light pipe portion and a fin portion. The light pipe part is combined with the heat pipe thermopile sleeve head 3, and the fin part exchanges heat with air.
The front 3-1 of the thermopile is connected with a fresh air side heat pipe group, and the back 3-2 is connected with an exhaust side heat pipe group. When a forward voltage is input to the thermopile 3 in winter, the temperature of the front 3-1 of the thermopile is increased, and the temperature of the back 3-2 of the thermopile is reduced. When reverse voltage is input to the thermopile 3 in summer, the temperature of the front 3-1 of the thermopile is reduced, and the temperature of the back 3-2 of the thermopile is increased.
The current controller 13 can receive the indoor and outdoor temperature values fed back by the temperature probes, control the input current of the thermopile 3 through internal logic programming, and further control the refrigerating capacity or heating capacity of the thermopile 13 to achieve the temperature set value of the user.
Under the working condition in winter, the thermopile is introduced with forward current. Fresh air is sucked into the room by the air inlet cross flow fan 6 to exchange heat with the finned section of the fresh air side heat pipe group 1, at the moment, the light pipe part of the fresh air side heat pipe group 1 exchanges heat with the front 3-1 of the thermopile, namely the hot end of the thermopile, exhaust air is driven by the exhaust cross flow fan 7 to be discharged out of the room to exchange heat with the finned section of the exhaust side heat pipe group 2, and the light pipe part of the exhaust air section heat pipe exchanges heat with the back 3-2 of the thermopile, namely the cold end.
In summer, the thermopile is electrified with reverse current. Fresh air is sucked into a room by the air inlet cross flow fan 6 and exchanges heat with the finned section of the fresh air side heat pipe group 1, the light pipe of the fresh air side heat pipe group 1 exchanges heat with the cold end of the front face 3-1 of the thermopile, indoor exhaust air is exhausted out of the room under the driving of the exhaust cross flow fan 7 and exchanges heat with the finned section of the exhaust side heat pipe group 2, and the light pipe of the exhaust section heat pipe exchanges heat with the back face 3-2 of the thermopile, namely the hot end.
In the transition season, the difference of the indoor and outdoor temperature difference is small, a summer mode or a winter mode can be selected according to the difference of the indoor and outdoor temperatures, and if the transition season only depends on ventilation to reach a proper temperature, the function of the ventilation module can be used. At the moment, the current controller does not input current, namely only the cross flow fan is started to realize the ventilation effect.
Example 2
The embodiment discloses a control method of a temperature-controllable air heat recovery device, which comprises the following steps:
firstly, setting a temperature value T0 by a user, and setting the temperature measured by a temperature probe at the exhaust side to be T1; the temperature measured by the fresh air side temperature probe is T2;
secondly, determining an output current value by comparing phase difference values among T0, T1 and T2; if the value is | T2-T0| < epsilon, the current controller does not output current, the thermopile does not work, if the value is | T2-T0| < epsilon, the phase difference value between T1 and T2 is judged, if T1 > T2 is established, the current controller outputs reverse current, and if T1 > T2 is not established, the current controller outputs forward current; epsilon is any small value, and the control precision is reflected;
thirdly, determining the magnitude of the output current value by comparing the phase difference value between T0 and T1; if the value of | T1-T0| < ε is true, the current controller maintains the current value; if the value of T1-T0 is less than epsilon, judging according to the current direction,
if the current is the forward current, judging whether T1 is more than T0, if T1 is more than T0, reducing the current by the current controller, and if T1 is more than T0, increasing the current by the current controller;
if the current is the reverse current, whether T1 is more than T0 is judged, if T1 is more than T0, the current controller increases the current, and if T1 is more than T0, the current controller decreases the current.
Logic control of the current controller as shown in fig. 4 and 5, the user sets the temperature value to be T0, and the temperature measured by the exhaust side temperature probe is T1, i.e. the current indoor temperature value. The temperature measured by the fresh air side temperature probe is T2, namely the outdoor temperature. The output current value is determined by comparing the phase difference values between T0, T1, and T2. The current controller firstly judges whether the phase difference value is within the acceptance range, then judges the direction of the input current, and then compares the values of T0 and T1 to determine the increase, decrease or maintenance of the current value, finally achieves the monitoring and control of the power of the heat recovery device, and realizes the control of the indoor temperature.
The application provides a temperature-controllable air heat recovery device and a control method thereof, which adopt a heat pipe thermopile integration technology, invent a high-efficiency combination mode of the heat pipe thermopile, have good heat exchange effect, and simultaneously install a current controller, and have a temperature-controllable function.
The temperature-controllable air heat recovery device and the control method thereof can be applied to a window type fresh air fan, are high in efficiency and small in size, and the fresh air fan carrying the heat recovery device can be directly mounted above a window.
In summary, the above is only a summary of the system structure and the simple design method of the present invention, and is not intended to limit the protection examples of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A temperature-controllable air heat recovery device is characterized by comprising a fresh air side heat pipe group (1), an exhaust side heat pipe group (2), a thermopile (3), a heat pipe thermopile connecting sleeve head (4), an exhaust side temperature probe (12), a fresh air side temperature probe (14) and a current controller (13);
the fresh air side heat pipe group (1) and the exhaust side heat pipe group (2) are respectively connected with the thermopile (3) through a heat pipe thermopile sleeve head (4); the fresh air side heat pipe group (1) is connected with the front surface of the thermopile (3), the exhaust side heat pipe group is connected with the back surface of the thermopile (3), and the input current of the thermopile (3) is controlled by a current controller (13); the current controller (13) is connected with a first temperature probe (12) and a second temperature probe (14); the first temperature probe (12) is arranged on the fresh air side heat pipe group (1); the second temperature probe (14) is installed on the exhaust side heat pipe group (2).
2. A temperature-controllable air heat recovery device according to claim 1, wherein the fresh air side heat pipe group (1) and the exhaust air side heat pipe group (2), each of which is constituted by 4 heat pipes, each of which includes a light pipe portion and a fin portion; the light pipe part is combined with the heat pipe thermopile sleeve head (3), and the fin part is contacted with air for heat exchange.
3. The temperature-controllable air heat recovery device according to claim 1, wherein the heat pipe thermopile sleeve head (4) belongs to an annular structure, the inner side of the heat pipe thermopile sleeve head (4) is an annular surface and is sleeved at the side end of a light pipe of the heat pipe, and the outer surface of the heat pipe thermopile sleeve head (4) is a rectangular surface and is attached to the thermopile (3); the heat pipe thermopile sleeve head (4) comprises a stainless steel shell (4-1), a vacuum layer (4-2), a heat conduction silicone grease layer (4-3) and a red copper block (4-4); the vacuum layer (4-2) is positioned in the head sleeving interlayer; the heat-conducting silicone grease layer (4-3) is positioned between the heat pipe and the inner wall of the sleeve head, and the red copper block (4-4) is arranged at the bottom of the sleeve head and clings to the thermopile (3).
4. The temperature-controllable air heat recovery device according to claim 1, wherein the joint of the cuff (4) with the fresh air side heat pipe group (1) and the cuff (4) with the exhaust side heat pipe group (2) is an expansion joint.
5. The temperature-controllable air heat recovery device according to claim 1, wherein the number of the heat pipe thermopile connection sleeve heads (4) is 2, and the two sleeve heads are connected through nylon screws.
6. A temperature-controllable air heat recovery device according to claim 1, wherein the current controller (13) is connected to a temperature probe (12) mounted on the exhaust side heat pipe group (2) and a temperature probe (14) mounted on the fresh air side heat pipe group (1), and the current controller (13) adjusts the input current to the thermopile (3) by internal logic control in response to a signal fed back from the temperature probe.
7. A control method of a temperature-controllable air heat recovery apparatus, the control method comprising the steps of:
firstly, setting a temperature value T0 by a user, and setting the temperature measured by a temperature probe at the exhaust side to be T1; the temperature measured by the fresh air side temperature probe is T2;
secondly, determining an output current value by comparing phase difference values among T0, T1 and T2; if the value is | T2-T0| < epsilon, the current controller does not output current, the thermopile does not work, if the value is | T2-T0| < epsilon, the phase difference value between T1 and T2 is judged, if T1 > T2 is established, the current controller outputs reverse current, and if T1 > T2 is not established, the current controller outputs forward current; epsilon is any small value, and the control precision is reflected;
thirdly, determining the magnitude of the output current value by comparing the phase difference value between T0 and T1; if the value of | T1-T0| < ε is true, the current controller maintains the current value; if the value of T1-T0 is less than epsilon, judging according to the current direction,
if the current is the forward current, judging whether T1 is more than T0, if T1 is more than T0, reducing the current by the current controller, and if T1 is more than T0, increasing the current by the current controller;
if the current is the reverse current, whether T1 is more than T0 is judged, if T1 is more than T0, the current controller increases the current, and if T1 is more than T0, the current controller decreases the current.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234308A (en) * | 2021-11-19 | 2022-03-25 | 广东伊斐净化科技有限公司 | Cold-heat compensation split type total heat exchange fresh air conditioning system and control method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201242234Y (en) * | 2008-07-08 | 2009-05-20 | 宗西峰 | Anion high-efficiency empty power electronic cooling/warming air conditioner |
| CN202546976U (en) * | 2012-04-20 | 2012-11-21 | 程刚 | Air-cooling type semiconductor refrigerating and dehumidifying air regulating device |
| CN104964369A (en) * | 2015-07-20 | 2015-10-07 | 华中科技大学 | Semi-conductor radiation air conditioning device driven by solar energy |
| CN110173792A (en) * | 2019-05-13 | 2019-08-27 | 江苏高科应用科学研究所有限公司 | A kind of window Fresh air handling units with recuperation of heat |
-
2019
- 2019-10-19 CN CN201910996900.9A patent/CN110848901A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201242234Y (en) * | 2008-07-08 | 2009-05-20 | 宗西峰 | Anion high-efficiency empty power electronic cooling/warming air conditioner |
| CN202546976U (en) * | 2012-04-20 | 2012-11-21 | 程刚 | Air-cooling type semiconductor refrigerating and dehumidifying air regulating device |
| CN104964369A (en) * | 2015-07-20 | 2015-10-07 | 华中科技大学 | Semi-conductor radiation air conditioning device driven by solar energy |
| CN110173792A (en) * | 2019-05-13 | 2019-08-27 | 江苏高科应用科学研究所有限公司 | A kind of window Fresh air handling units with recuperation of heat |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114234308A (en) * | 2021-11-19 | 2022-03-25 | 广东伊斐净化科技有限公司 | Cold-heat compensation split type total heat exchange fresh air conditioning system and control method thereof |
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