CN114234333B - Fresh air machine and control method thereof - Google Patents
Fresh air machine and control method thereof Download PDFInfo
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- CN114234333B CN114234333B CN202111537849.9A CN202111537849A CN114234333B CN 114234333 B CN114234333 B CN 114234333B CN 202111537849 A CN202111537849 A CN 202111537849A CN 114234333 B CN114234333 B CN 114234333B
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- fresh 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
- F24F7/00—Ventilation
- F24F7/04—Ventilation with ducting systems, e.g. by double walls; with natural circulation
- F24F7/06—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit
- F24F7/08—Ventilation with ducting systems, e.g. by double walls; with natural circulation with forced air circulation, e.g. by fan positioning of a ventilator in or against a conduit with separate ducts for supplied and exhausted air with provisions for reversal of the input and output systems
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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
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
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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
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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
- F24F13/08—Air-flow control members, e.g. louvres, grilles, flaps or guide plates
- F24F13/10—Air-flow control members, e.g. louvres, grilles, flaps or guide plates movable, e.g. dampers
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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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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
- Ventilation (AREA)
Abstract
The invention provides a new fan and a control method thereof, wherein the new fan comprises a shell, a partition plate is arranged in the shell, the partition plate can divide a new air channel and a return air channel in the shell into an upper air channel and a lower air channel which are mutually independent, a heat exchange core group is also arranged in the shell, the heat exchange core group comprises an upper core and a lower core, and the positions of the upper core and the lower core can be controlled to move relative to a new air inlet, a return air outlet and a new air outlet according to different operation modes of the new fan. According to the invention, through the control switching of the relative positions of the upper core body and the lower core body, which can be independently controlled, and the fresh air inlet, the return air outlet and the fresh air outlet, the fresh air machine can be provided with richer operation modes, especially richer bypass modes, without independently designing corresponding bypass flow channels as in the prior art, the structure is more compact, the energy-saving effect can be further improved compared with the prior art, and the size of the shell can be reduced.
Description
Technical Field
The invention belongs to the technical field of air conditioning, and particularly relates to a fresh air fan and a control method thereof.
Background
An important way to improve the building energy-saving standard is to popularize passive ultra-low energy consumption buildings nationwide. Because of the characteristics of passive form super low energy consumption building, the demand of indoor to the new trend improves greatly, and in addition the dust and haze weather that often appear in recent years has again put forward higher requirement to indoor air circumstance. In order to meet the requirements of passive ultra-low energy consumption buildings and people on healthier and more comfortable indoor air environment, indoor air treatment equipment appears in the market.
The existing indoor air processing equipment mainly comprises a fresh air haze removal machine, a fresh air ventilator, an air purifier and the like. Some of these equipment have only to exchange and heat recovery indoor outer air, and some have realized having carried out filtering capability to the air, and air purifier then mainly carries out purification treatment to indoor air, has also appeared the part with the product of all function integrations, nevertheless has following defect:
(1) the bypass function is usually realized under the condition that the heat exchange core body is reduced in size and the heat exchange efficiency is sacrificed or the unit volume is increased, so that the energy conservation or the space conservation is not facilitated.
(2) In the prior art, only a fresh air bypass function or a return air bypass function is provided, and the functions of fresh air bypass and return air bypass cannot be realized simultaneously.
Disclosure of Invention
Therefore, the invention provides the fresh air fan and the control method thereof, which can overcome the defects that the fresh air fan with the bypass function in the prior art has larger volume due to the insufficient optimization of the structural design and cannot simultaneously have the functions of fresh air bypass and return air bypass.
In order to solve the problems, the invention provides a new fan which comprises a shell, wherein a partition plate is arranged in the shell, the partition plate can divide a new air channel and a return air channel in the shell into an upper air channel and a lower air channel which are mutually independent, a heat exchange core body group is further arranged in the shell, the heat exchange core body group comprises an upper core body arranged in the upper air channel and a lower core body arranged in the lower air channel, and the positions of the upper core body and the lower core body can be controlled to move relative to a new air inlet, a return air outlet and a new air outlet according to different operation modes of the new fan.
In some embodiments, a fresh air valve is arranged in the fresh air inlet, the fresh air valve is provided with a fresh air upper valve plate and a fresh air lower valve plate which are respectively in one-to-one correspondence with the upper air duct and the lower air duct, and the fresh air upper valve plate and the fresh air lower valve plate can be respectively and independently controlled to be opened or closed; and/or a return air valve is arranged in the return air inlet, the return air valve is provided with a return air upper valve plate and a return air lower valve plate which respectively correspond to the upper air duct and the lower air duct one by one, and the return air upper valve plate and the return air lower valve plate can be respectively and independently controlled to be opened or closed.
In some embodiments, the partition is provided with a core moving guide rail, and the upper core and the lower core are slidably connected to the core moving guide rail.
In some embodiments, the fresh air machine further comprises a core movement control device, and the core movement control device comprises a first control device and a second control device, wherein the first control device can control the upper core and/or the lower core to generate linear motion along the core movement guide rail along a first direction, and the second control device can control the upper core and/or the lower core to generate linear motion along the core movement guide rail along a second direction, and the first direction is opposite to the second direction.
In some embodiments, a first pulling rope is connected between the first control device and the upper core, a second pulling rope is connected between the second control device and the upper core, and the first control device moves the position of the upper core through the first pulling rope and the second pulling rope; and/or a third traction rope is connected between the first control device and the lower core body, a fourth traction rope is connected between the second control device and the lower core body, and the second control device realizes the position movement of the lower core body through the third traction rope and the fourth traction rope.
The invention also provides a control method of the fresh air machine, which is used for controlling the fresh air machine and comprises the following steps:
acquiring an operation mode of a fresh air fan;
and controlling the upper core body and/or the lower core body to change or keep the positions relative to the fresh air inlet, the return air outlet and the fresh air outlet according to the acquired operation mode, and controlling the opening or closing of the fresh air upper valve plate, the fresh air lower valve plate, the return air upper valve plate and the return air lower valve plate.
In some embodiments, when the operation mode is a fresh air mode or a mixed air mode, the upper core and the lower core are controlled to be at a first position at the same time, so that the fresh air inlet and the fresh air outlet are communicated through fresh air channels respectively arranged in the upper core and the lower core, the return air inlet and the return air outlet are communicated through return air channels respectively arranged in the upper core and the lower core, and the fresh air upper valve plate, the fresh air lower valve plate, the return air upper valve plate and the return air lower valve plate are synchronously controlled to be opened completely.
In some embodiments, when the operation mode is a fresh air bypass mode, the upper core is controlled to be in the second position, the lower core is controlled to be in the first position, so that the fresh air inlet is directly communicated with the fresh air outlet through the upper air duct, the return air inlet is communicated with the return air outlet through a return air flow passage in the lower core, and the fresh air upper valve plate is synchronously controlled to be opened, the fresh air lower valve plate is controlled to be closed, the return air upper valve plate is controlled to be closed, and the return air lower valve plate is controlled to be opened.
In some embodiments, when the operation mode is a return air bypass mode, the upper core is controlled to be in a first position, the lower core is controlled to be in a second position, so that the fresh air inlet and the fresh air outlet are communicated through a fresh air channel of the upper core, the return air inlet and the return air outlet are directly communicated through the lower air channel, and the fresh air upper valve plate is synchronously controlled to be opened, the fresh air lower valve plate is controlled to be closed, the return air upper valve plate is controlled to be closed, and the return air lower valve plate is controlled to be opened.
In some embodiments, when the operation mode is a double-bypass mode, the upper core and the lower core are controlled to be in the second positions respectively, so that the fresh air inlet is directly communicated with the fresh air outlet through the upper air duct, and the return air inlet is directly communicated with the return air outlet through the lower air duct.
In some embodiments, before controlling the upper core and/or the lower core to change or maintain the position relative to the fresh air inlet, the return air outlet, and the fresh air outlet according to the obtained operation mode, a real-time position determining step of determining the position of the upper core and/or the lower core is further included, when the real-time position does not correspond to the corresponding position in the corresponding operation mode, the position of the upper core and/or the lower core relative to the fresh air inlet, the return air outlet, and the fresh air outlet is controlled, otherwise, the position of the upper core and/or the lower core relative to the fresh air inlet, the return air outlet, and the fresh air outlet is maintained.
In some embodiments, when the first traction rope and the third traction rope are included, the step of determining the real-time position of the upper core and/or the lower core specifically includes:
acquiring the real-time lengths of the first traction rope and the third traction rope respectively;
when the live length d1= L1 of the first pull cord, the upper core is in a first position;
when the live length d3= L1 of the third pull cord, the lower core is in a first position;
when the live length d1= L2 of the first pull cord, the upper core is in a second position;
when the live length d3= L2 of the third pull cord, the lower core is in a second position;
when L1 < d1 < L22, the upper core is in a third position;
when L1 < d3 < L2, the lower core is in a third position; wherein, the first and the second end of the pipe are connected with each other,
l1 is the initial length that stretches out that corresponds first haulage rope and third haulage rope, and L2 is the maximum length that stretches out that corresponds first haulage rope and third haulage rope, the third position lies in between the first position and the second position.
According to the fresh air fan and the control method thereof, the relative positions of the upper core body and the lower core body, the fresh air inlet, the return air outlet and the fresh air outlet which can be independently controlled are controlled and switched, so that the fresh air fan can have richer operation modes, particularly richer bypass modes, without independently designing corresponding bypass flow channels as in the prior art, the structure is more compact, the energy-saving effect can be further improved compared with the prior art, and the size of a shell can be reduced.
Drawings
Fig. 1 is a schematic view of an internal structure of a fresh air machine according to an embodiment of the present invention, where an upper core and a lower core are both in a first position;
fig. 2 is a schematic view of an internal structure of the fresh air machine according to the embodiment of the present invention, wherein the upper core and the lower core are both in the second position;
FIG. 3 is a schematic cross-sectional view of C-C of FIG. 1;
FIG. 4 isbase:Sub>A view from A-A of FIG. 1, showing the upper core and the lower core both in the first position, wherein the operating mode of the corresponding fresh air machine isbase:Sub>A fresh air mode;
FIG. 5 showsbase:Sub>A state of the upper core at the second position and the lower core at the first position at the view angle A-A in FIG. 1, where the operation mode corresponding to the fresh air machine isbase:Sub>A fresh air bypass mode;
FIG. 6 showsbase:Sub>A state of the upper core atbase:Sub>A first position and the lower core atbase:Sub>A second position at view A-A of FIG. 1, where the operation mode corresponding to the fresh air machine isbase:Sub>A return air bypass mode;
fig. 7 isbase:Sub>A state of fig. 1 in which the upper core and the lower core are both in the second position at viewbase:Sub>A-base:Sub>A, and the operation mode corresponding to the fresh air machine is the return air bypass mode;
FIG. 8 is a schematic structural view of the fresh air damper of FIG. 1;
FIG. 9 is a schematic structural view of the return air valve of FIG. 1;
FIG. 10 is a schematic view illustrating the flow direction of the fresh air fan in a fresh air mode according to an embodiment of the present invention;
fig. 11 is a schematic view illustrating a flow direction of an air flow when the fresh air fan according to the embodiment of the present invention is in a wind mixing mode;
FIG. 12 is a schematic view of the flow direction of the fresh air fan in the internal circulation mode according to the embodiment of the present invention;
fig. 13 is a schematic view illustrating the flow direction of the air flow when the fresh air fan according to the embodiment of the present invention is in the fresh air bypass mode;
FIG. 14 is a schematic view of the flow direction of the fresh air fan in the return air bypass mode according to an embodiment of the present invention;
fig. 15 is a schematic airflow direction diagram of the new fan in the double-bypass mode according to the embodiment of the present invention.
The reference numbers are given as:
1. a fresh air inlet; 2. a first fresh air filtering device; 3. a second fresh air filtering device; 4. a fresh air preheating device; 5. a fresh air valve; 6. an air return inlet; 7. a return air filtering device; 8. a return air valve; 9. a core movement control device; 10. the core moves the hauling cable; 11. an internal circulation air inlet; 12. an internal circulation air valve; 13. an internal circulation air filtering device; 14. a fresh air temperature and humidity sensor; 15. an air return outlet; 16. a return air fan; 17. an electric controller; 18. a core body moving guide rail; 19. a partition plate; 20. a heat exchange core group; 21. a carbon dioxide sensor; 22. a fresh air fan; 23. a heat exchanger; 24. a fresh air outlet; 51. a fresh air valve motor is arranged; 52. a lower fresh air valve motor; 81. an upper return air valve motor; 82. a lower return air valve motor; 91. a first control device; 92. a second control device; 101. a first pull cord; 102. a second pull cord; 103. a third pull cord; 104. a fourth pull cord; 201. an upper core body; 202. and a lower core body.
Detailed Description
Referring to fig. 1 to 15 in combination, according to an embodiment of the present invention, a new fan is provided, which includes a casing, a partition plate 19 is disposed in the casing, the partition plate 19 can separate a new air channel and a return air channel in the casing into an upper air channel and a lower air channel which are independent of each other, a heat exchange core group 20 is further disposed in the casing, the heat exchange core group 20 includes an upper core 201 disposed in the upper air channel and a lower core 202 disposed in the lower air channel, and positions of the upper core 201 and the lower core 202 can be controlled and moved relative to a new air inlet 1, a return air inlet 6, a return air outlet 15, and a new air outlet 24 according to different operation modes of the new fan. In the technical scheme, the relative positions of the upper core body 201 and the lower core body 202, and the fresh air inlet 1, the return air inlet 6, the return air outlet 15 and the fresh air outlet 24 can be controlled independently, so that the fresh air fan has richer operation modes, particularly richer bypass modes, without independently designing corresponding bypass flow channels as in the prior art, the structure is more compact, the energy-saving effect can be further improved compared with the prior art, and the size of the shell can be reduced (the shell can be reduced by more than 103m by material verification under the same performance by adopting the technical scheme of the invention). It should be noted that the fresh air fan according to the technical scheme of the present invention can realize the circulation form of the fresh air flow and the return air flow inside the casing by switching the relative positions of the upper core 201 and the lower core 202, and realize bypassing or no bypassing, for example, the fresh air bypass mode, the return air bypass mode, and the double bypass mode can realize that the fresh air and the return air do not pass through at least one of the upper core 201 and the lower core 202, so as to prolong the life of the heat exchange core, maintain higher heat exchange efficiency for a long time, and save more energy.
In some embodiments, a fresh air valve 5 is arranged in the fresh air inlet 1, the fresh air valve 5 has a fresh air upper valve plate and a fresh air lower valve plate which respectively correspond to the upper air duct and the lower air duct one by one, and the fresh air upper valve plate and the fresh air lower valve plate can be respectively and independently controlled to be opened or closed; and/or, be equipped with return air blast gate 8 in the return air import 6, return air blast gate 8 have with go up wind channel and lower wind channel respectively one-to-one's return air upper valve plate, return air lower valve plate, return air upper valve plate, return air lower valve plate can be opened or close by independent control respectively. In the technical scheme, the fresh air valve 5 and the return air valve 8 are respectively controlled by the valve plates corresponding to the upper air channel and the lower air channel independently, so that the fresh air valve 5 and the return air valve 8 are under the isolation effect of the partition plate 19, the fresh air machine is simplified and more compact in structure while having fresh air bypass, return air bypass and double bypass modes, and the whole volume of the fresh air machine is smaller.
In some embodiments, the partition 19 is provided with a core moving rail 18, and the upper core 201 and the lower core 202 are slidably connected to the core moving rail 18. In this technical scheme, the upper core 201 and the lower core 202 can share the core moving guide rail 18, so that the structure is more compact, and the sliding movement of the upper core 201 and the lower core 202 is stable and reliable.
The position of the upper core 201 and the lower core 202 is moved by a core movement control device 9, the core movement control device 9 includes a first control device 91 and a second control device 92, wherein the first control device 91 can control the upper core 201 and/or the lower core 202 to generate a linear motion along the core movement guide 18 in a first direction, and the second control device 92 can control the upper core 201 and/or the lower core 202 to generate a linear motion along the core movement guide 18 in a second direction, and the first direction is opposite to the second direction. In this technical solution, the first control device 91 and the second control device 92 respectively realize that the two cores move in two directions, and the sharing of the devices can reduce the production cost on the one hand and further simplify the structure of the fresh air machine on the other hand.
In a specific embodiment, a first traction rope 101 is connected between the first control device 91 and the upper core 201, a second traction rope 102 is connected between the second control device 92 and the upper core 201, and the first control device 91 moves the position of the upper core 201 through the first traction rope 101 and the second traction rope 102; and/or a third traction rope 103 is connected between the first control device 91 and the lower core body 202, a fourth traction rope 104 is connected between the second control device 92 and the lower core body 202, and the second control device 92 moves the position of the lower core body 202 through the third traction rope 103 and the fourth traction rope 104. Correspondingly, the first control device 91 may be, for example, a motor-driven hoisting device having two hoisting disks, the two hoisting disks may be independently controlled, and the hoisting disks rotate in forward and reverse directions to adjust the extending lengths of the first traction rope 101 and the third traction rope 103, so as to move and adjust the corresponding core positions. The second control device 92 may have the same structure and operation principle as the first control device 91, and is not described herein again.
The fresh air machine can be a fresh air environment control integrated machine under some working conditions.
The structure of the fresh air machine is further described below by taking the fresh air machine as a fresh air environment control all-in-one machine as an example.
The fresh air environment-friendly integrated machine belongs to an indoor machine and comprises a heat exchange core body group 20, a filtering device, a fan, an evaporator, an air valve, a carbon dioxide sensor, a temperature and humidity sensor, an electric controller, a heating device, an air port and other parts, wherein the interior of the fresh air environment-friendly integrated machine is divided into different air channels by the arrangement of the parts and the matching of a partition plate 19, so that different use modes are realized, and the fresh air environment-friendly integrated machine mainly comprises a fresh air channel, an air return channel, an internal circulation channel, a fresh air bypass channel and an air return bypass channel; as shown in fig. 1, there are five tuyeres in the model: fresh air inlet 1, return air inlet 6, internal circulation air inlet 11, return air outlet 15 and fresh air outlet 24. The fresh air inlet 1 is connected with an outdoor air pipe to introduce outdoor fresh air; the return air inlet 6 is connected with indoor air to be introduced; the internal circulation air inlet 11 is connected with indoor introduced indoor air; the return air outlet 15 is connected with an outdoor air pipe to discharge indoor air; the fresh air outlet 24 is connected with the fresh air which is input indoors and filtered and purified. As shown in fig. 2, the upper core 201 may form a bypass channel after moving; as shown in fig. 3, in which the electric controller 17 is disposed above the return air fan 16, the heat exchange core assembly 20 is divided into two parts, i.e., an upper core 201 and a lower core 202, by the partition 19; a core body moving guide rail 18 is arranged on the contact surface of the partition plate 19 with the upper core body 201 and the lower core body 202; as shown in fig. 4, the upper core 201 and the lower core 202 are located inbase:Sub>A cross section ofbase:Sub>A-base:Sub>A, wherein the upper core 201 and the lower core 202 do not move to formbase:Sub>A fresh air channel and an air return channel, and the fresh air and the air return flow inbase:Sub>A cross manner in the heat exchange core to perform heat exchange and recover energy, thereby saving energy; the first control device 91 can control the first traction rope 101 and the third traction rope 103 to be tightened respectively, namely the upper core body 201 and the lower core body 202 move leftwards; the second control device 92 can control the tightening of the second traction rope 102 and the fourth traction rope 104 respectively, that is, the upper core body 201 and the lower core body 202 move rightwards; as shown in FIG. 5, when the upper core 201 slides to the right, a space left above the upper core belongs to the fresh air bypass channel. The fresh air valve 5 and the return air valve 8 are of a double-motor structure as shown in fig. 8 and 9, the fresh air valve 5 is controlled by an upper fresh air valve motor 51 and a lower fresh air valve motor 52 respectively, the return air valve 8 is controlled by an upper return air valve motor 81 and a lower return air valve motor 82, when the upper core body 201 and the lower core body 202 do not move, the fresh air valves 5 are all opened to control the air outlet of a fresh air channel, and the fresh air valves 5 are all opened to control the air outlet of a return air channel; when the upper core body 201 moves rightwards, the lower core body 202 does not move, meanwhile, the upper fresh air valve motor 51 is started, the lower fresh air valve motor 52 is closed, the upper return air valve motor 81 is closed, and the lower return air valve motor 82 is started, the fresh air bypass channel is controlled to discharge air; the return air passes through only the return air passage of the lower core 202. As shown in fig. 6, when the upper core 201 does not move and the lower core 202 moves rightward, and meanwhile, the upper fresh air valve motor 51 is turned on, the lower fresh air valve motor 52 is turned off, the upper return air valve motor 81 is turned off, and the lower return air valve motor 82 is turned on, the air is discharged from the return air bypass channel; the fresh air passes through the fresh air channel of the upper core body 201. As shown in fig. 7, when the upper core 201 and the lower core 202 both move rightward, and at the same time, the upper fresh air valve motor 51 is turned on, the lower fresh air valve motor 52 is turned off, the upper return air valve motor 81 is turned off, and the lower return air valve motor 82 is turned on, the fresh air bypass channel and the return air bypass channel are controlled to discharge air at the same time, and at this time, neither the fresh air nor the return air passes through the cores. The heat exchange core body is sequentially exchanged with a fresh air valve motor and a return air valve motor for controlling opening and closing; the positions of the fresh air bypass channel and the return air bypass channel are exchanged.
The shape of the heat exchange core assembly 20 can be a positive direction, or a hexagon, a rhombus, etc., and is specifically selected according to the needs.
According to an embodiment of the present invention, there is also provided a control method of a fresh air machine, for controlling the fresh air machine, including the steps of:
acquiring an operation mode of a fresh air fan;
and controlling the upper core body 201 and/or the lower core body 202 to change or keep the positions of the fresh air inlet 1, the return air inlet 6, the return air outlet 15 and the fresh air outlet 24 according to the obtained operation mode, and controlling the opening or closing of the fresh air upper valve plate, the fresh air lower valve plate, the return air upper valve plate and the return air lower valve plate.
In some embodiments, when the operation mode is a full fresh air mode or a mixed air mode, the upper core 201 and the lower core 202 are controlled to be at the first position at the same time, so that the fresh air inlet 1 and the fresh air outlet 24 are communicated through fresh air channels respectively arranged in the upper core 201 and the lower core 202, the return air inlet 6 and the return air outlet 15 are communicated through return air channels respectively arranged in the upper core 201 and the lower core 202, and the fresh air upper valve plate, the fresh air lower valve plate, the return air upper valve plate and the return air lower valve plate are synchronously controlled to be completely opened.
Specifically, in the fresh air mode, as shown in fig. 10, when the unit operates the fresh air mode according to condition judgment, the upper fresh air valve motor 51 and the lower fresh air valve motor 52 simultaneously control the air valves to be opened, the upper return air valve motor 81 and the lower return air valve motor 82 simultaneously control the air valves to be opened, the first control device 91 judges the positions of the upper core body 201 and the lower core body 202 by detecting the extending amounts of the first traction rope 101 and the third traction rope 103, and if the positions are the fresh air bypass channel structure positions, the first control device 91 starts to reset the upper core body 201 through the traction ropes; if the positions of the upper core body 201 and the lower core body 202 are detected to be the positions of the full fresh air channels, the first control device 91 does not act; in this mode, the actual positions of the lower core 202 and the upper core 201 are not moved (i.e., at the initial position), and the outdoor fresh air and the indoor return air all exchange heat and humidity through the heat exchange core, so that the energy-saving effect is realized.
In the mixed-air mode, as shown in fig. 11, the internal circulation air is added in the full-air mode; the movement of the upper core body 201 and the lower core body 202 is matched with the upper fresh air valve motor 51, the lower fresh air valve motor 52, the upper return air valve motor 81 and the lower return air valve motor 82 to control the same fresh air mode.
In some embodiments, when the operation mode is a fresh air bypass mode, the upper core 201 is controlled to be in the second position, and the lower core 202 is controlled to be in the first position, so that the fresh air inlet 1 and the fresh air outlet 24 are directly communicated through the upper air duct, the return air inlet 6 and the return air outlet 15 are communicated through a return air flow duct in the lower core 202, and the fresh air upper valve plate, the fresh air lower valve plate, the return air upper valve plate and the return air lower valve plate are synchronously controlled to be opened, closed and closed.
Specifically, as shown in fig. 13, in this mode, the upper fresh air damper motor 51 controls the upper half air valve to open, the lower fresh air damper motor 52 controls the lower half air valve to close, the upper return air damper motor 81 controls the upper half air valve to close, and the lower return air damper motor 82 controls the lower half air valve to open, the first control device 91 determines the positions of the upper core 201 and the lower core 202 by detecting the extension amounts of the first traction rope 101 and the third traction rope 103, and if the positions are the fresh air bypass channel structure positions, the core movement control device does not operate; if the positions of the upper core body 201 and the lower core body 202 are detected to be the positions of the full fresh air channel, the upper core body 201 pulls the second traction rope 102 to move rightwards through the second control device 92, and a fresh air bypass channel is formed. The mode is different from the fresh air mode in that fresh air does not pass through the upper core body 201 when entering, but passes through the fresh air bypass channel after the upper core body 201 is removed. Fresh air windage reduces under this mode, and fresh air fan 22 load diminishes, and is more energy-conserving, and the new trend does not pass through last core 201 simultaneously, can prolong the life of last core 201.
In some embodiments, when the operation mode is a return air bypass mode, the upper core 201 is controlled to be in the first position, and the lower core 202 is controlled to be in the second position, so that the fresh air inlet 1 and the fresh air outlet 24 are communicated through a fresh air channel of the upper core 201, the return air inlet 6 and the return air outlet 15 are directly communicated through the lower air channel, and the fresh air upper valve plate is synchronously controlled to be opened, the fresh air lower valve plate is synchronously controlled to be closed, the return air upper valve plate is synchronously controlled to be closed, and the return air lower valve plate is synchronously controlled to be opened.
Specifically, as shown in fig. 14, in this mode, the upper fresh air damper motor 51 controls the upper half air valve to open, the lower fresh air damper motor 52 controls the lower half air valve to close, the upper return air damper motor 81 controls the upper half air valve to close, and the lower return air damper motor 82 controls the lower half air valve to open, the first control device 91 determines the positions of the upper core 201 and the lower core 202 by detecting the extension amounts of the first traction rope 101 and the third traction rope 103, and if the positions are the fresh air bypass channel structure positions, the first control device 91 starts to reset the upper core 201 through the traction ropes; if the positions of the upper core body 201 and the lower core body 202 are detected to be the positions of the full fresh air channel, the lower core body 202 pulls the fourth traction rope 104 to move rightwards through the second control device 92, and a return air bypass channel is formed. This mode is characterized in that the return air is not passed through the lower core 202 when entering, but is passed through the return air bypass passage after the lower core 202 is removed. The return air windage reduces under this mode, and the load of return air fan 16 diminishes, and is more energy-conserving, and the return air does not pass through lower core 202 simultaneously, can prolong the life of lower core 202.
In some embodiments, when the operation mode is the double-bypass mode, the upper core 201 and the lower core 202 are controlled to be in the second positions respectively, so that the fresh air inlet 1 and the fresh air outlet 24 are directly communicated through the upper air duct, and the return air inlet 6 and the return air outlet 15 are directly communicated through the lower air duct.
Specifically, as shown in fig. 15, when the unit determines the operation dual-bypass mode through the condition, the upper fresh air valve motor 51 and the lower fresh air valve motor 52 simultaneously control the air valves to open, the upper return air valve motor 81 and the lower return air valve motor 82 simultaneously control the air valves to open, the first control device 91 determines the positions of the upper core body 201 and the lower core body 202 by detecting the extending amounts of the first pulling rope 101 and the third pulling rope 103, and if the positions are the positions of the fresh air bypass channel structure, the second control device 92 pulls the fourth pulling rope 104 to move rightward; if the positions of the upper core body 201 and the lower core body 202 are detected to be the positions of the full fresh air channel, the second control device 92 pulls the second pulling rope 102 and the fourth pulling rope 104 to move rightwards at the same time; the actual positions of the upper core body 201 and the lower core body 202 are moved rightwards integrally in the mode, outdoor fresh air and indoor return air do not pass through the upper core body 201 and the lower core body 202 completely, the fresh air resistance and the return air resistance are reduced, the loads of the fresh air fan 22 and the return air fan 16 are reduced, energy is saved, meanwhile, the fresh air and the return air do not pass through the upper core body 201 and the lower core body 202, and the service lives of the upper core body 201 and the lower core body 202 can be prolonged.
In some embodiments, when the operation mode is the internal circulation mode, as shown in fig. 12, in this mode, the upper fresh air valve motor 51 and the lower fresh air valve motor 52 simultaneously control the air valves to be closed, the upper return air valve motor 81 and the lower return air valve motor 82 simultaneously control the air valves to be closed, and the internal circulation air valve 12 is opened. The first control device 91 does not detect the immobility. Indoor air enters through an internal circulation air inlet 11, is filtered by an internal circulation air filtering device 13, then passes through an internal circulation air valve 12, is introduced into a heat exchanger 23 by a fresh air fan 22 to finish cooling or heating, and finally enters into a room through a fresh air outlet 24 to finish the internal circulation of the indoor air.
In some embodiments, before controlling the upper core 201 and/or the lower core 202 to change or maintain the position relative to the fresh air inlet 1, the return air inlet 6, the return air outlet 15, and the fresh air outlet 24 according to the obtained operation mode, a real-time position determining step of determining the position of the upper core 201 and/or the lower core 202 is further included, and when the real-time position does not correspond to the corresponding position in the corresponding operation mode, the upper core 201 and/or the lower core 202 is controlled to change the position relative to the fresh air inlet 1, the return air inlet 6, the return air outlet 15, and the fresh air outlet 24, otherwise the upper core 201 and/or the lower core 202 maintains the position relative to the fresh air inlet 1, the return air inlet 6, the return air outlet 15, and the fresh air outlet 24.
When the first pulling rope 101 and the third pulling rope 103 are included, the step of judging the real-time position of the upper core body 201 and/or the lower core body 202 specifically includes:
acquiring the real-time lengths of the first traction rope 101 and the third traction rope 103;
when the live length d1= L1 of the first traction rope 101, the upper core 201 is in the first position;
when the real-time length d3= L1 of the third traction rope 103, the lower core 202 is in the first position;
when the live length d1= L2 of the first traction rope 101, the upper core 201 is in the second position;
when the real-time length d3= L2 of the third traction rope 103, the lower core 202 is in the second position;
when L1 < d1 < L22, the upper core body 201 is in a third position;
when L1 < d3 < L2, the lower core 202 is in the third position; wherein the content of the first and second substances,
l1 is the initial length of the first traction rope 101 and the third traction rope 103, and L2 is the maximum length of the first traction rope 101 and the third traction rope 103, and the third position is between the first position and the second position.
In a specific embodiment, the control logic for the movement of the upper core 201 and the lower core 202 in each operation mode is as follows:
after the unit is started, the internal circulation air valve 12 is opened, the return air fan 16 is started, the fresh air fan 22 is started, the indoor carbon dioxide concentration and relevant judgment conditions are detected through the carbon dioxide sensor 21, the unit operation mode is judged, if the unit operates in the internal circulation mode, the upper fresh air valve motor 51 and the lower fresh air valve motor 52 simultaneously control the air valves to be closed, and the first control device 91 and the second control device 92 (which are collectively called core body movement control devices and are not detected to be in action in the whole text) do not;
if the air mixing mode is operated, the upper fresh air valve motor 51 and the lower fresh air valve motor 52 simultaneously control the air valves to be opened, the upper return air valve motor 81 and the lower return air valve motor 82 simultaneously control the air valves to be opened, the first control device 91 detects the positions of the upper core body 201 and the lower core body 202, if a third judgment condition is met, the position is a non-fresh air channel position, and the first control device 91 resets the upper core body 201 and the lower core body 202 by tightening corresponding traction ropes; if the first judgment condition is met, the core body movement control device at the position of the full fresh air channel does not act;
if the fresh air mode is operated, the upper fresh air valve motor 51 and the lower fresh air valve motor 52 simultaneously control the air valves to be opened, the upper return air valve motor 81 and the lower return air valve motor 82 simultaneously control the air valves to be opened, the first control device 91 detects the positions of the upper core body 201 and the lower core body 202, if a third judgment condition is met, the positions are non-fresh air channel structure positions, and the first control device 91 resets the upper core body 201 and the lower core body 202 by tightening the core body moving traction rope; if the first judgment condition is met, the position of the full fresh air channel is determined, and the core body movement control device does not act;
if the upper fresh air valve motor 51 controls the upper half air valve to be opened and the lower fresh air valve motor 52 controls the lower half air valve to be closed simultaneously in the fresh air bypass mode, the upper return air valve motor 81 controls the upper half air valve to be closed and the lower return air valve motor 82 controls the lower half air valve to be opened, the first control device 91 detects the positions of the upper core body 201 and the lower core body 202, if a second determination condition is met, the position is a fresh air bypass channel structure position, and the core body movement control device does not act; if the first judgment condition is met, the position of the upper core body 201 is a fresh air channel position, and the second control device 92 pulls the second traction rope 102 to move the upper core body 201 rightwards to form a fresh air bypass channel; if the fourth determination condition is satisfied, the second control device 92 pulls the second pulling rope 102 to move the upper core 201 rightward, and the first control device 91 pulls the third pulling rope 103 to move the lower core 202 leftward.
If the upper fresh air valve motor 51 controls the upper half air valve to be opened and the lower fresh air valve motor 52 controls the lower half air valve to be closed simultaneously in the return air bypass mode, the upper return air valve motor 81 controls the upper half air valve to be closed and the lower return air valve motor 82 controls the lower half air valve to be opened, the first control device 91 detects the positions of the upper core body 201 and the lower core body 202, if a first judgment condition is met, the position is a fresh air channel position, and the second control device 92 pulls the second traction rope 102 to move the lower core body 202 to the right to form a return air bypass channel; if the fifth judgment condition is met, the mode is a return air bypass channel mode, and the core body movement control device does not act; if the sixth determination condition is satisfied, the first control device 91 pulls the first pull rope 101 to move the upper core body 201 leftward; the second control device 92 pulls the fourth pull-cord 104 to move the lower core 202 to the right.
If the upper fresh air valve motor 51 and the lower fresh air valve motor 52 simultaneously control the air valves to be opened in the double-bypass mode, the upper return air valve motor 81 and the lower return air valve motor 82 simultaneously control the air valves to be opened, the first control device 91 detects the positions of the upper core body 201 and the lower core body 202, if the seventh judgment condition is met, the position is a double-bypass channel structure, and the first control device 91 does not act; if the seventh determination condition is not satisfied, the position is the non-double bypass wind passage position, and the second control device 92 pulls the second pulling rope 102 and the fourth pulling rope 104 to move the upper core 201 and the lower core 202 to the right.
The positions of the upper core 201 and the lower core 202 are all detected and determined by the first control device 91, and the detection and determination conditions are as follows:
the first determination condition: the first traction rope 101 extends for a length d1= the initial length L1 of the first traction rope 101, and the third traction rope 103 extends for a length d3= the initial length L1 of the third traction rope 103;
the second determination condition: the first traction rope 101 extends for a length d1= the maximum extension length L2 of the first traction rope 101, and the third traction rope 103 extends for a length d3= the initial extension length L2 of the third traction rope 103;
the third determination condition: the stretching length d1 of the first traction rope 101 is not equal to the stretching initial length L1 of the first traction rope 101, and the stretching length d3 of the third traction rope 103 is not equal to the stretching initial length L1 of the third traction rope 103;
the fourth determination condition: the extending length d1 of the first traction rope 101 is not equal to the maximum extending length L2 of the first traction rope 101, and meanwhile, the extending length d3 of the third traction rope 103 is not equal to the initial extending length L1 of the third traction rope 103;
the fifth determination condition: the first traction rope 101 extends for a length d1= the initial extension L1 of the first traction rope 101, and the third traction rope 103 extends for a length d3= the maximum extension L2 of the third traction rope 103;
sixth determination condition: the extending length d1 of the first traction rope 101 is not equal to the extending initial length L1 of the first traction rope 101, and meanwhile, the extending length d3 of the third traction rope 103 is not equal to the maximum extending length L2 of the third traction rope 103;
the seventh determination condition: the first traction rope 101 extends for a length d1= the maximum extension length L2 of the first traction rope 101, and the third traction rope 103 extends for a length d3= the maximum extension length L2 of the third traction rope 103;
wherein, L2 is more than or equal to d3 and more than or equal to L1, L2 is more than or equal to d1 and more than or equal to L1, L1 is the extension length of the first traction rope 101 and the third traction rope 103 under a full fresh air channel structure (namely the extension initial length of the corresponding traction ropes at the moment), L2 is the extension length of the first traction rope 101 and the third traction rope 103 under a fresh air bypass channel structure, a return air bypass channel structure and a double bypass channel structure (namely the extension maximum length of the corresponding traction ropes at the moment); typically, d1= L1 or d1= L2; d3= L1 or d3= L2 but if an abrupt power cut occurs during the movement, d1, d3 are between L1 and L2.
It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, it is possible to make several improvements and modifications without departing from the technical principle of the present invention, and these improvements and modifications should also be construed as the protection scope of the present invention.
Claims (10)
1. A new fan is characterized by comprising a shell, wherein a partition plate (19) is arranged in the shell, the partition plate (19) can divide a new air channel and a return air channel in the shell into an upper air channel and a lower air channel which are mutually independent, a heat exchange core group (20) is further arranged in the shell, the heat exchange core group (20) comprises an upper core (201) arranged in the upper air channel and a lower core (202) arranged in the lower air channel, and the positions of the upper core (201) and the lower core (202) can be controlled to move relative to a new air inlet (1), a return air inlet (6), a return air outlet (15) and a new air outlet (24) according to different operation modes of the new fan; a core body moving guide rail (18) is arranged on the partition plate (19), and the upper core body (201) and the lower core body (202) are connected with the core body moving guide rail (18) in a sliding manner; the core body movement control device (9) is further provided, the core body movement control device (9) comprises a first control device (91) and a second control device (92), wherein the first control device (91) can control the upper core body (201) and/or the lower core body (202) to generate linear motion along the core body movement guide rail (18) along a first direction, and the second control device (92) can control the upper core body (201) and/or the lower core body (202) to generate linear motion along the core body movement guide rail (18) along a second direction, and the first direction is opposite to the second direction.
2. The fresh air machine according to claim 1, wherein a fresh air valve (5) is arranged in the fresh air inlet (1), the fresh air valve (5) is provided with a fresh air upper valve plate and a fresh air lower valve plate which respectively correspond to the upper air duct and the lower air duct one by one, and the fresh air upper valve plate and the fresh air lower valve plate can be respectively and independently controlled to be opened or closed; and/or, be equipped with return air blast gate (8) in return air import (6), return air blast gate (8) have with go up wind channel and lower wind channel respectively one-to-one return air upper valve plate, return air lower valve plate, return air upper valve plate, return air lower valve plate can be opened or closed by independent control respectively.
3. The fresh air machine according to claim 1, wherein a first hauling rope (101) is connected between the first control device (91) and the upper core (201), a second hauling rope (102) is connected between the second control device (92) and the upper core (201), and the first control device (91) and the second control device (92) realize the position movement of the upper core (201) through the first hauling rope (101) and the second hauling rope (102); and/or a third traction rope (103) is connected between the first control device (91) and the lower core body (202), a fourth traction rope (104) is connected between the second control device (92) and the lower core body (202), and the first control device (91) and the second control device (92) realize the position movement of the lower core body (202) through the third traction rope (103) and the fourth traction rope (104).
4. A control method for a fresh air machine, for controlling the fresh air machine according to any one of claims 1 to 3, comprising the steps of:
acquiring an operation mode of a fresh air fan;
and controlling the positions of the upper core body (201) and/or the lower core body (202) to be changed or kept relative to the fresh air inlet (1), the return air inlet (6), the return air outlet (15) and the fresh air outlet (24) according to the acquired operation mode, and controlling the opening or closing of the fresh air upper valve plate, the fresh air lower valve plate, the return air upper valve plate and the return air lower valve plate.
5. The control method according to claim 4,
when the operation mode is a fresh air mode or a mixed air mode, the upper core body (201) and the lower core body (202) are controlled to be at the first position at the same time, so that the fresh air inlet (1) and the fresh air outlet (24) are communicated through fresh air channels respectively arranged in the upper core body (201) and the lower core body (202), the return air inlet (6) and the return air outlet (15) are communicated through return air channels respectively arranged in the upper core body (201) and the lower core body (202), and the fresh air upper valve plate, the fresh air lower valve plate, the return air upper valve plate and the return air lower valve plate are synchronously controlled to be opened.
6. The control method according to claim 4,
when the operation mode is a fresh air bypass mode, the upper core body (201) is controlled to be in the second position, the lower core body (202) is controlled to be in the first position, so that the fresh air inlet (1) and the fresh air outlet (24) are directly communicated with the upper air channel, the return air inlet (6) and the return air outlet (15) are communicated with the return air channel in the lower core body (202), and the fresh air upper valve plate is opened, the fresh air lower valve plate is closed, the return air upper valve plate is closed and the return air lower valve plate is opened under synchronous control.
7. The control method according to claim 4,
when the operational mode is return air bypass mode, control go up core (201) and be in the primary importance, core (202) are in the second place down to make new trend import (1) with new trend export (24) pass through the new trend runner intercommunication that last core (201) had makes return air import (6) with return air export (15) pass through down the wind channel directly communicates, and synchronous control valve plate is opened on the new trend, valve plate is closed down on the new trend, valve plate is closed on the return air, valve plate is opened down on the return air.
8. The control method according to claim 4,
when the operation mode is a double-bypass mode, the upper core body (201) and the lower core body (202) are controlled to be respectively located at second positions, so that the fresh air inlet (1) is directly communicated with the fresh air outlet (24) through the upper air channel, and the return air inlet (6) is directly communicated with the return air outlet (15) through the lower air channel.
9. The control method according to claim 4, characterized in that before controlling the positions of the upper core (201) and/or the lower core (202) relative to the fresh air inlet (1), the return air inlet (6), the return air outlet (15) and the fresh air outlet (24) according to the obtained operation mode, a real-time position determining step of determining the positions of the upper core (201) and/or the lower core (202) is further included, when the real-time positions do not correspond to the corresponding positions in the corresponding operation mode, the upper core (201) and/or the lower core (202) is controlled to change the positions relative to the fresh air inlet (1), the return air inlet (6), the return air outlet (15) and the fresh air outlet (24), otherwise the upper core (201) and/or the lower core (202) keeps the positions relative to the fresh air inlet (1), the return air inlet (6), the return air outlet (15) and the fresh air outlet (24).
10. The control method according to claim 9, wherein the step of determining the real-time position of the upper core (201) and/or the lower core (202) when the first traction rope (101) and the third traction rope (103) are/is included specifically comprises:
acquiring the respective real-time lengths of the first traction rope (101) and the third traction rope (103);
-when the live length d1= L1 of the first traction rope (101), the upper core (201) is in a first position;
-when the real length d3= L1 of the third pull cord (103), the lower core (202) is in a first position;
-when the live length d1= L2 of the first traction rope (101), the upper core (201) is in a second position;
-when the real-time length d3= L2 of the third pull cord (103), the lower core (202) is in a second position;
when L1 < d1 < L2, the upper core (201) is in a third position;
when L1 < d3 < L2, the lower core body (202) is in a third position; wherein the content of the first and second substances,
l1 is the initial length of the first traction rope (101) and the third traction rope (103) in extension, L2 is the maximum length of the first traction rope (101) and the third traction rope (103) in extension, and the third position is located between the first position and the second position.
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| JP2000018636A (en) * | 1998-07-03 | 2000-01-18 | Hitachi Ltd | Air conditioner with rotary total heat exchanger |
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