CN107726531A - A kind of heat pump VMC and its control method - Google Patents
A kind of heat pump VMC and its control method Download PDFInfo
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- CN107726531A CN107726531A CN201711121390.8A CN201711121390A CN107726531A CN 107726531 A CN107726531 A CN 107726531A CN 201711121390 A CN201711121390 A CN 201711121390A CN 107726531 A CN107726531 A CN 107726531A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000011084 recovery Methods 0.000 claims abstract description 32
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 238000007791 dehumidification Methods 0.000 claims abstract description 18
- 238000005057 refrigeration Methods 0.000 claims abstract description 10
- 238000000746 purification Methods 0.000 claims description 6
- 238000004887 air purification Methods 0.000 claims description 4
- 238000011144 upstream manufacturing Methods 0.000 claims description 3
- 235000013399 edible fruits Nutrition 0.000 claims description 2
- 238000011282 treatment Methods 0.000 abstract description 7
- 239000003507 refrigerant Substances 0.000 description 18
- 238000001816 cooling Methods 0.000 description 9
- 230000006835 compression Effects 0.000 description 6
- 238000007906 compression Methods 0.000 description 6
- 238000004891 communication Methods 0.000 description 4
- 238000010926 purge Methods 0.000 description 3
- 230000002457 bidirectional effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000011269 treatment regimen Methods 0.000 description 1
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
- 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
-
- 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
- F24F13/28—Arrangement or mounting of filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/1405—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification in which the humidity of the air is exclusively affected by contact with the evaporator of a closed-circuit cooling system or heat pump circuit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
- F24F3/147—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification with both heat and humidity transfer between supplied and exhausted air
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F5/00—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater
- F24F5/0007—Air-conditioning systems or apparatus not covered by F24F1/00 or F24F3/00, e.g. using solar heat or combined with household units such as an oven or water heater cooling apparatus specially adapted for use in air-conditioning
- F24F5/001—Compression cycle type
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
- F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
Abstract
The invention discloses a kind of heat pump VMC and its control method, the system includes：Shell, heat pump, outdoor fresh air introduce system, room air discharge system and control system, wherein, shell is separated out two passages by the central dividing plate with the 3rd air-valve, outdoor fresh air introduces system and is disposed in the outdoor in fresh air circulation passage, room air discharge system is disposed in the interior in air air exhaust passage, a heat pump part is disposed in the interior in air air exhaust passage, and another part is disposed in the outdoor in fresh air circulation passage.The present invention is advantageous in that：(1) dehumidifying and recuperation of heat are realized using heat pump principle, under control of the control system, heat pump according to refrigeration, heating, dehumidifying+without recuperation of heat, dehumidifying+part recuperation of heat, dehumidifying+total heat recovery this five kinds of patterns work, can realize whole year recuperation of heat and high humidity under to the dehumidification treatments of fresh air；(2) heat recovery efficiency is high, windage is low.
Description
Technical field
The present invention relates to a kind of heat pump VMC and its control method, and in particular to one kind has refrigeration, heating, dehumidifying
+ without five kinds of recuperation of heat, dehumidifying+part recuperation of heat, dehumidifying+total heat recovery mode of operations, energy while heat recovery efficiency is lifted
The heat pump VMC and its control method of air communication channel resistance are enough reduced, belongs to fresh air purifying technical field.
Background technology
Fresh air owner will have two major classes：New blower fan with heat recovery function, the new blower fan without heat recovery function.
For the new blower fan with heat recovery function, the recovery of heat is mainly realized by heat exchange core, such as patent of invention
New blower for heat recycling disclosed in 201610547610.2, it is exactly by setting recuperation of heat core (to change in fresh air and air exhaust passage
Hot core) realize the recovery to indoor heat.This new blower fan using heat exchange core, it is simple in construction, but heat recovery efficiency with
The change of outdoor environment temperature and change, and heat exchange efficiency is relatively low, and the resistance of air is larger.Meanwhile this new blower fan can not
The humidity of air is handled.
In order to solve the humidity problem of room air, patent of invention 201710206979.1 discloses a kind of heat-pump-type heat and returned
Fresh air purifying dehumidifying integrated machine is received, the all-in-one is handled the humidity of fresh air using the principle of heat pump.This all-in-one
Although overcoming the problem of air communication channel resistance is big, its heat recovery efficiency is relatively low, can not realize recuperation of heat in the winter time.
The content of the invention
For solve the deficiencies in the prior art, it is an object of the invention to provide one kind have refrigeration, heating, dehumidifying+without heat
Five kinds of recovery, dehumidifying+part recuperation of heat, dehumidifying+total heat recovery mode of operations, can be reduced while heat recovery efficiency is lifted
The heat pump VMC of air communication channel resistance, and the control method of the heat pump VMC.
In order to realize above-mentioned target, the present invention adopts the following technical scheme that：
A kind of heat pump VMC, it is characterised in that including：Shell and the heat pump being arranged in shell, outdoor
Leads to new breeze system, room air discharge system and control system, wherein,
Previous housings are separated out outdoor fresh air circulation passage and room air air draft by the central dividing plate with the 3rd air-valve
Passage, the symmetrical both ends of outdoor fresh air circulation passage are respectively arranged with outdoor fresh air intake, fresh air outlet, room air air draft
The symmetrical both ends of passage are respectively arranged with outdoor air outlet, indoor exhaust wind mouth；
Foregoing outdoor fresh air introduces system and is disposed in the outdoor in fresh air circulation passage, and room air discharge system is arranged on room
In interior air air exhaust passage, compressor, four-way valve and the part heat exchanger of heat pump are disposed in the interior in air air exhaust passage,
And between the second blower fan and outdoor air outlet positioned at room air discharge system, the another part heat exchanger of heat pump
Be disposed in the outdoor in fresh air circulation passage, and be located outside the first blower fan of Leads to new breeze system and outdoor fresh air intake it
Between；
Aforementioned control system by gather and process chamber outside at temperature data at Leads to new breeze mouth and indoor exhaust wind mouth
Humidity data, CO2Concentration data introduces system and Interior Space to the 3rd air-valve on central dividing plate, heat pump, outdoor fresh air
Gas discharge system is controlled.
Foregoing heat pump VMC, it is characterised in that foregoing heat pump includes：Compressor, four-way valve, magnetic valve,
Heat exchanger, choke valve, some connecting tubes and muffler, wherein, the d mouths of four-way valve are connected by connecting tube with compressor, and s mouths lead to
Cross muffler to be connected with compressor, c mouths are connected with a connecting tube, and the root connecting tube is divided into two branch roads, Mei Gezhi in end
Magnetic valve, heat exchanger and choke valve are all disposed with road, first branch road is disposed in the interior in air air exhaust passage, and second
The magnetic valve of individual branch road is disposed in the interior in air air exhaust passage, heat exchanger and choke valve are disposed in the outdoor fresh air circulation passage
In, two branch roads converge to be connected with the 3rd heat exchanger positioned at second branch pipeline heat exchanger upstream afterwards, and the 3rd heat exchanger leads to
The e mouths for crossing connecting tube and four-way valve connect.
Foregoing heat pump VMC, it is characterised in that foregoing outdoor fresh air, which introduces system, to be included：First air-valve, first
Screen pack, the first blower fan and purification assembled unit, wherein, the first air-valve and the first screen pack are disposed in the outdoor Leads to new breeze mouth
Place, and the first screen pack is arranged on fresh air exit, and the first blower fan positioned at inboard, the first blower fan and purification assembled unit
Positioned at inboard.
Foregoing heat pump VMC, it is characterised in that foregoing room air discharge system includes：Second air-valve, second
Blower fan and the second screen pack, wherein, the second air-valve is disposed in the outdoor at air outlet, and the second blower fan and the second screen pack are arranged on room
At interior exhaust outlet, and the second blower fan is positioned at inboard.
Foregoing heat pump VMC, it is characterised in that aforementioned control system includes：Controller, temperature sensor, CO2
Sensor and humidity sensor, wherein, temperature sensor is disposed in the outdoor at Leads to new breeze mouth, CO2Sensor and humidity sensor
Device is disposed in the interior at exhaust outlet, temperature sensor, CO2Sensor and humidity sensor are connected with controller signals.
Foregoing heat pump VMC, it is characterised in that aforementioned controllers are arranged in room air air exhaust passage.
The control method of foregoing heat pump VMC, it is characterised in that comprise the following steps：
Step1：Start；
Step2：Indoor relative humidity RH_Test is detected by the humidity sensor at indoor exhaust wind mouth, if RH_Test
>RH_Set, then turn Step10；If RH_Test≤RH_Set, turn Step3；
Step3：Pass through the CO at indoor exhaust wind mouth2Sensor detects indoor CO2Concentration C O2_ Test, if CO2_
Test>CO2_ Set, then turn Step5；If CO2_Test≤CO2_ Set, then turn Step4；
Step4：Heat pump does not work, and whole heat pump VMC is operated in inner circulating air purification pattern, Zhi Houzhuan
Step9；
Step5：Outdoor fresh air temperature Tfa_Test is detected by the temperature sensor at outdoor fresh air intake, if
Tfa_Test>Tfa_SetH, then turn Step6；If Tfa_SetL<Tfa_Test≤Tfa_SetH, then turn Step7；If
Tfa_Test≤Tfa_SetL, then turn Step8；
Step6：Heat pump works according to fresh air side refrigeration mode, turns Step9 afterwards；
Step7：Heat pump does not work, and whole heat pump VMC is operated in dew wind pattern, turns Step9 afterwards；
Step8：Heat pump works according to fresh air side heating mode, turns Step9 afterwards；
Step9：The controller of control system receives the startup-shutdown instruction of heat pump VMC, refers to if being not connected to shutdown
Order, then turn Step2；If being connected to halt instruction, heat pump VMC is shut down；
Step10：Pass through the CO at indoor exhaust wind mouth2Sensor detects indoor CO2Concentration C O2_ Test, if CO2_
Test>CO2_ Set, then turn Step12；If CO2_Test≤CO2_ Set, then turn Step11；
Step11：Heat pump works according to circulating dehumidification pattern in fresh air side, turns Step9 afterwards；
Step12：Outdoor fresh air temperature Tfa_Test is detected by the temperature sensor at outdoor fresh air intake, if
Tfa_Test>Tfa_SetH, then turn Step13；If Tfa_SetL<Tfa_Test≤Tfa_SetH, then turn Step14；If
Tfa_Test≤Tfa_SetL, then turn Step15；
Step13：Heat pump works according to fresh air side dehumidification mode, turns Step9 afterwards；
Step14：Heat pump works according to fresh air side dehumidifying+part heat recovery mode, turns Step9 afterwards；
Step15：Heat pump works according to fresh air side dehumidifying+total heat recovery pattern, turns Step9 afterwards.
The present invention is advantageous in that：
(1) heat pump VMC of the invention, dehumidifying and recuperation of heat, the different portions of heat pump are realized using heat pump principle
Part is arranged in outdoor fresh air circulation passage and room air air exhaust passage, and under control of the control system, heat pump can be by
According to refrigeration, heating, dehumidifying+without recuperation of heat, dehumidifying+part recuperation of heat, dehumidifying+total heat recovery this five kinds of patterns work, realize complete
Year recuperation of heat and high humidity under to the dehumidification treatments of fresh air, to indoor offer it is clean, meet the fresh air of humidity requirement；
(2) heat pump VMC of the invention, the windage of heat pump heat exchanger are far smaller than the windage of recuperation of heat filter core,
And heat exchange efficiency is significantly larger than recuperation of heat filter core, so reducing air communication channel resistance while heat recovery efficiency is lifted
Power；
(3) control method of heat pump VMC of the invention, easily implement.
Brief description of the drawings
Fig. 1 is the composition schematic diagram of the heat pump VMC of the present invention；
Fig. 2 is the control block diagram of the heat pump VMC of the present invention.
The implication of reference in figure：
101- compressors, 102- four-way valves, 103- connecting tubes, 110- connecting tubes, 111- magnetic valves, 112- connecting tubes,
113- heat exchangers, 114- choke valves, 115- connecting tubes, 120- connecting tubes, 121- magnetic valves, 122- connecting tubes, 123- heat exchangers,
124- connecting tubes, 125- choke valves, 126- connecting tubes, 130- connecting tubes, 131- heat exchangers, 132- connecting tubes, 133- mufflers；
The air-valves of 201- first, the screen packs of 202- first, the blower fans of 203- first, 204- purification assembled units；
The air-valves of 301- second, the blower fans of 302- second, the screen packs of 303- second；
401- shells, 402- central dividing plates, the air-valves of 403- the 3rd, 404- outdoor fresh air intakes, the outlet of 405- fresh airs,
Air outlet outside 406- rooms, 407- indoor exhaust wind mouths；
501- controllers, 502- temperature sensors, 503-CO2Sensor, 504- humidity sensors.
Embodiment
Make specific introduce to the present invention below in conjunction with the drawings and specific embodiments.
Part I：The composition of the heat pump VMC of the present invention
Reference picture 1, heat pump VMC of the invention include：Shell 401 and the heat pump system being arranged in shell 401
System, outdoor fresh air introduce system, room air discharge system and control system.
1st, shell
Reference picture 1, shell 401 are internally provided with central dividing plate 402, the 3rd air-valve are provided with central dividing plate 402
403, shell 401 is separated out outdoor fresh air circulation passage and room air air draft by the central dividing plate 402 with the 3rd air-valve 403
Passage.
The symmetrical both ends of outdoor fresh air circulation passage are respectively arranged with outdoor fresh air intake 404, fresh air outlet 405.
The symmetrical both ends of room air air exhaust passage are respectively arranged with outdoor air outlet 406, indoor exhaust wind mouth 407.
2nd, outdoor fresh air introduces system
Outdoor fresh air introduces system and is disposed in the outdoor in fresh air circulation passage.
Reference picture 1, outdoor fresh air, which introduces system, to be included：First air-valve 201, the first screen pack 202, the and of the first blower fan 203
Purify assembled unit 204.
First air-valve 201 and the first screen pack 202 are disposed in the outdoor at Leads to new breeze mouth 404, and the first screen pack 202
Positioned at inboard.
First blower fan 203 and purification assembled unit 204 are arranged at fresh air outlet 405, and the first blower fan 203 is positioned at inner
Side.
3rd, room air discharge system
Room air discharge system is disposed in the interior in air air exhaust passage.
Reference picture 1, room air discharge system include：Second air-valve 301, the second blower fan 302 and the second screen pack 303.
Second air-valve 301 is disposed in the outdoor at air outlet 406.
Second blower fan 302 and the second screen pack 303 are disposed in the interior at exhaust outlet 407, and the second blower fan 302 is positioned at inner
Side.
First air-valve 201, the second air-valve 301, the 3rd air-valve 403 coordinate the first blower fan 203, the difference of the second blower fan 302
Start-stop controls, it is possible to achieve interior circulation and two kinds of air-treatment patterns of outer circulation.
4th, heat pump
A heat pump part is disposed in the interior in air air exhaust passage, and another part is disposed in the outdoor new wind circulation and led to
In road.
Reference picture 1, heat pump includes：Compressor 101, four-way valve 102, magnetic valve 111, magnetic valve 121, heat exchanger
113rd, heat exchanger 123, heat exchanger 131, choke valve 114, choke valve 125, muffler 133 and some connecting tubes (connecting tube 103,
Connecting tube 110, connecting tube 112, connecting tube 115, connecting tube 120, connecting tube 122, connecting tube 124, connecting tube 126, connecting tube
130th, connecting tube 132).
Compressor 101 and four-way valve 102 are disposed in the interior in air air exhaust passage, and the d mouths of four-way valve 102 pass through connecting tube
It is connected with compressor 101, s mouths are connected by muffler 133 with compressor 101, and c mouths are connected with connecting tube 103, the root connecting tube
103 are divided into two branch roads in end, and magnetic valve 111, heat exchanger 113 and choke valve 114 are disposed with first branch road, the
Magnetic valve 121, heat exchanger 123 and choke valve 125 are disposed with two branch roads, wherein, first branch road is disposed in the interior
In air air exhaust passage, compressor 101, four-way valve 102 and the branch road be located at the second blower fan 302 of room air discharge system with
Between outdoor air outlet 406；The magnetic valve 121 of second branch road is disposed in the interior in air air exhaust passage, heat exchanger 123 and section
Stream valve 125 is disposed in the outdoor in fresh air circulation passage, and heat exchanger 123 and choke valve 125 are located outside the of Leads to new breeze system
Between one blower fan 203 and outdoor fresh air intake 404.Two branch roads are connected after converging with the 3rd heat exchanger 131, according to air
Flow direction, the 3rd heat exchanger 131 pass through connection positioned at the upstream of second branch pipeline heat exchanger 123, last 3rd heat exchanger 131
Pipe 132 is connected with the e mouths of four-way valve 102.
5th, control system
Control system by gather and process chamber outside at temperature data at Leads to new breeze mouth 404 and indoor exhaust wind mouth 407
Humidity data, CO2Concentration data introduces system to the 3rd air-valve 403 on central dividing plate 402, heat pump, outdoor fresh air
It is controlled with room air discharge system.
Reference picture 1, control system includes：Controller 501, temperature sensor 502, CO2Sensor 503 and humidity sensor
504。
Temperature sensor 502 is disposed in the outdoor at Leads to new breeze mouth 404, CO2Sensor 503 and humidity sensor 504 are set
Put indoors at exhaust outlet 407, three sensors are connected with the signal of controller 501.
Controller 501 is arranged in room air air exhaust passage, and it draws with the 3rd air-valve 403, heat pump, outdoor fresh air
Enter system to connect with room air discharge system signal, the work to them is controlled.
The difference of air-treatment content in system is introduced into according to outdoor fresh air, the work of heat pump can be divided into：Refrigeration
Pattern；Heating mode；Dehumidifying+without heat recovery mode；Dehumidifying+part heat recovery mode；Dehumidifying+total heat recovery pattern.
As the CO being disposed in the interior at exhaust outlet 4072Sensor 503 and humidity sensor 504 detect indoor CO2Concentration
It is higher, when humidity is relatively low, illustrate that interior needs to introduce fresh air：
(1) detect that temperature is higher if placed at the temperature sensor 502 at outdoor fresh air intake 404, fresh air needs
Cooling processing is carried out, heat pump is operated in refrigeration mode, i.e. the high-temperature high-pressure refrigerant gas after the compression of compressor 101
C mouths through four-way valve 102 flow to magnetic valve 111, heat exchanger 113, through choke valve 114 throttling after refrigerant through connecting tube 115,
The inflow heat exchanger 131 of connecting tube 130 is evaporated, and reduces the temperature of fresh air, and the refrigerant after heating is from connecting tube 132, return-air
Pipe 133 returns to compressor 101.In cooling mode, magnetic valve 121 is closed, and outdoor fresh air introduces the He of the first blower fan 203 of system
Second blower fan 302 of room air discharge system opens work, and the 3rd air-valve 403 on central dividing plate 402 is closed, outdoor fresh air
First air-valve 201 of introducing system and the second air-valve 301 of room air discharge system are opened.
(2) detect that temperature is relatively low if placed at the temperature sensor 502 at outdoor fresh air intake 404, fresh air needs
Heating treatment is carried out, heat pump is operated in heating mode, i.e. the high-temperature high-pressure refrigerant gas after the compression of compressor 101
E mouths through four-way valve 102 flow to heat exchanger 131 by connecting tube 132, and choke valve is flowed to through connecting tube 130, connecting tube 115
114, it is evaporated after the throttling of choke valve 114 into heat exchanger 113, the refrigerant after evaporative cooling passes through magnetic valve 111, connected
Adapter 110, connecting tube 103 flow to four-way valve 102 and cooled via return air pipe 133 returns to compressor 101.In a heating mode, magnetic valve
121 close, and outdoor fresh air introduces the first blower fan 203 of system and the second blower fan 302 of room air discharge system is opened, middle
The 3rd air-valve 403 on dividing plate 402 is closed, and outdoor fresh air introduces first air-valve 201 and room air discharge system of system
Second air-valve 301 is opened.
(3) moderate temperature is detected if placed at the temperature sensor 502 at outdoor fresh air intake 404, fresh air is not
Need to carry out heating and cooling processing, heat pump does not work, and under this mode of operation, outdoor fresh air introduces the first blower fan of system
203 and the second blower fan 302 of room air discharge system open work, the 3rd air-valve 403 on central dividing plate 402 is closed, room
First air-valve 201 of outer Leads to new breeze system and the second air-valve 301 of room air discharge system are opened.
As the CO being disposed in the interior at exhaust outlet 4072Sensor 503 and humidity sensor 504 detect indoor CO2Concentration
It is relatively low, when humidity is higher, illustrate that interior can not introduce fresh air, at this moment heat pump is operated in dehumidifying+total heat recovery pattern, i.e.,
C mouth of the high-temperature high-pressure refrigerant gas through four-way valve 102 after the compression of compressor 101 flows to magnetic valve 121, heat exchanger 123,
Refrigerant after the throttling of choke valve 125 is evaporated through connecting tube 126, the inflow heat exchanger 131 of connecting tube 130, and fresh air is entered
Row dehumidification treatments, the refrigerant after heating return to compressor 101 from connecting tube 132, muffler 133.Under dehumidification mode, electromagnetism
Valve 111 is closed, and outdoor fresh air introduces the first air-valve 201 of system and the second air-valve 301 of room air discharge system is closed, in
The 3rd air-valve 403 on space bar 402 is opened, and outdoor fresh air introduces the first blower fan 203 and room air discharge system of system
The second blower fan 302 open work, fresh air flows to heat exchanger 123 and carries out heating heating after the cool-down dehumidification of heat exchanger 131, heat
Pumping system works according to dehumidifying+total heat recovery pattern, and whole heat pump VMC works according to inner circulating air purification pattern.
As the CO being disposed in the interior at exhaust outlet 4072Sensor 503 and humidity sensor 504 detect indoor CO2Concentration
It is higher, when humidity is higher, illustrate that interior needs to introduce fresh air：
(1) detect that temperature is higher if placed at the temperature sensor 502 at outdoor fresh air intake 404, fresh air needs
Cool-down dehumidification processing is carried out, heat pump is operated in dehumidification mode, the i.e. high-temperature high-pressure refrigerant after the compression of compressor 101
C mouth of the gas through four-way valve 102 flows to magnetic valve 111, heat exchanger 113, and the refrigerant after the throttling of choke valve 114 is through connecting tube
115th, the inflow heat exchanger 131 of connecting tube 130 is evaporated, and reduces the temperature and humidity of fresh air, and the refrigerant after heating is from connection
Pipe 132, muffler 133 return to compressor 101.Under dehumidification mode, magnetic valve 121 is closed, and outdoor fresh air introduces the of system
One blower fan 203 and the second blower fan 302 of room air discharge system open work, and the 3rd air-valve 403 on central dividing plate 402 closes
Close, outdoor fresh air introduces the first air-valve 201 of system and the second air-valve 301 of room air discharge system is opened, heat pump
Dehumidifying+without heat recovery mode is operated in, whole heat pump VMC works according to the two-way stream mode of outer circulation.
(2) detect that temperature is relatively low if placed at the temperature sensor 502 at outdoor fresh air intake 404, fresh air needs
Dehumidification treatments are carried out, and the air needs after dehumidifying carry out heating heat pump and are operated in dehumidification mode, i.e., through compressor
C mouth of the high-temperature high-pressure refrigerant gas through four-way valve 102 after 101 compressions flows to magnetic valve 121, heat exchanger 123, through choke valve
Refrigerant after 125 throttlings is evaporated through connecting tube 126, the inflow heat exchanger 131 of connecting tube 130, and fresh air is carried out at dehumidifying
Reason, the refrigerant after heating return to compressor 101 from connecting tube 132, muffler 133.Under the mode of operation that dehumidifies, magnetic valve
111 close, and outdoor fresh air introduces the first air-valve 201 of system and the second air-valve 301 of room air discharge system is closed, middle
The 3rd air-valve 403 on dividing plate 402 is opened, and outdoor fresh air introduces first blower fan 203 and room air discharge system of system
Second blower fan 302 opens work, and fresh air flows to heat exchanger 123 after the cool-down dehumidification of heat exchanger 131 and carries out heating heating, heat pump system
System is operated in dehumidifying+total heat recovery pattern, and whole heat pump VMC works according to the two-way stream mode of outer circulation.
(3) moderate temperature is detected if placed at the temperature sensor 502 at outdoor fresh air intake 404, fresh air needs
Dehumidified, and the heat pump that suitably heated up to the fresh air after dehumidifying is operated in dehumidification mode, i.e., after the compression of compressor 101
High-temperature high-pressure refrigerant gas be divided into two-way after connecting tube 103 through the c mouths of four-way valve 102, flow to all the way magnetic valve 121,
Heat exchanger 123, through choke valve 125；Another way flows to magnetic valve 111, heat exchanger 113, through choke valve 114；Pass through choke valve 125
Connecting tube 130, and inflow heat exchanger are aggregated into the refrigerant after choke valve 114 through connecting tube 126 and connecting tube 115 respectively
131 are evaporated, and carry out dehumidification treatments to fresh air, the refrigerant after heating returns to compressor from connecting tube 132, muffler 133
101.Under this mode of operation, magnetic valve 111 and magnetic valve 121 are opened, and outdoor fresh air introduces the first air-valve 201 and the room of system
Second air-valve 301 of interior air purge system is opened, and the 3rd air-valve 403 on central dividing plate 402 is closed, and outdoor fresh air introduces system
First blower fan 203 of system and the second blower fan 302 of room air discharge system open work, and fresh air is removed through the cooling of heat exchanger 131
Heat exchanger 123 is flowed to after wet and carries out heating heating, heat pump is operated in dehumidifying+part heat recovery mode, whole heat pump fresh air
System works according to the two-way stream mode of outer circulation.
It can be seen that heat pump is controlled to be worked under different mode of operations by control system, it is possible to achieve dehumidifying, heat are returned
The functions such as receipts.
, can be interior by heat pump if outdoor environment temperature is relatively low under outer circulation bidirectional stream mode of operation
The heat of air draft passes to fresh air under refrigerant effect, realizes efficient recuperation of heat, and system wind resistance is small.Because indoor temperature is relative
It is higher, so heat pump operating efficiency is also higher.
, can be to outdoor by heat pump if outdoor environment temperature is higher under outer circulation bidirectional stream mode of operation
High temperature fresh air carries out cooling processing.Because indoor temperature is relatively low with respect to outdoor temperature, so heat pump can be realized preferably
Condensation, ensures the refrigeration in fresh air side, ensures to be transported to the fresh air of interior in relatively low temperature levels, remains indoor and relax
Suitable environment, realizes the recovery to indoor exhaust wind cold.
Part II：The control method of the heat pump VMC of the present invention
Referring to Figures 1 and 2, the control method of heat pump VMC of the invention is specific as follows：
Step1：Start.
Step2：Indoor relative humidity RH_Test is detected by the humidity sensor 504 at indoor exhaust wind mouth 407, if
RH_Test>RH_Set, then turn Step10；If RH_Test≤RH_Set, turn Step3.
RH_Set is indoor relative comfort humidity, and general value is 60%~70%.
Step3：Pass through the CO at indoor exhaust wind mouth 4072Sensor 503 detects indoor CO2Concentration C O2_ Test, if
CO2_Test>CO2_ Set, then turn Step5；If CO2_Test≤CO2_ Set, then turn Step4.
CO2_ Set is the CO of indoor relative comfort2Concentration, general value are 1000ppm.
Step4：Heat pump does not work, and outdoor fresh air introduces the first air-valve 201 of system, room air discharge system
Second air-valve 301 is closed, and the 3rd air-valve 403 on central dividing plate 402 is opened, and outdoor fresh air introduces the first blower fan 203 of system
Work is opened with the second blower fan 302 of room air discharge system, whole heat pump VMC is operated in inner circulating air purification
Pattern, turn Step9 afterwards.
Step5：Outdoor fresh air temperature Tfa_Test is detected by the temperature sensor 502 at outdoor fresh air intake 404,
If Tfa_Test>Tfa_SetH, then turn Step6；If Tfa_SetL<Tfa_Test≤Tfa_SetH, then turn Step7；Such as
Fruit Tfa_Test≤Tfa_SetL, then turn Step8.
Tfa_SetH is outdoor fresh air temperature highest set value, and general value is 24~28 DEG C.
Tfa_SetL is the minimum setting value of outdoor fresh air temperature, and general value is 14~18 DEG C.
Step6：Heat pump works according to fresh air side refrigeration mode, and outdoor fresh air introduces the first air-valve 201 of system, room
Second air-valve 301 of interior air purge system is opened, and the 3rd air-valve 403 on central dividing plate 402 is closed, and outdoor fresh air introduces system
First blower fan 203 of system and the second blower fan 302 of room air discharge system open work, turn Step9 afterwards.
Step7：Heat pump does not work, and outdoor fresh air introduces the first air-valve 201 of system, room air discharge system
Second air-valve 301 is opened, and the 3rd air-valve 403 on central dividing plate 402 is closed, and outdoor fresh air introduces the first blower fan 203 of system
Opened with the second blower fan 302 of room air discharge system, turn Step9 afterwards.
Step8：Heat pump works according to fresh air side heating mode, and outdoor fresh air introduces the first air-valve 201 of system, room
Second air-valve 301 of interior air purge system is opened, and the 3rd air-valve 403 on central dividing plate 402 is closed, and outdoor fresh air introduces system
First blower fan 203 of system and the second blower fan 302 of room air discharge system are opened, and turn Step9 afterwards.
Step9：The controller 501 of control system receives the startup-shutdown instruction of heat pump VMC, stops if be not connected to
Machine instructs, then turns Step2；If being connected to halt instruction, heat pump VMC is shut down.
Step10：Pass through the CO at indoor exhaust wind mouth 4072Sensor 503 detects indoor CO2Concentration C O2_ Test, if
CO2_Test>CO2_ Set, then turn Step12；If CO2_Test≤CO2_ Set, then turn Step11.
Step11：Heat pump works according to circulating dehumidification pattern in fresh air side, and outdoor fresh air introduces the first wind of system
Valve 201, the second air-valve 301 of room air discharge system are closed, and the 3rd air-valve 403 on central dividing plate 402 is opened, outdoor new
Wind introduces the first blower fan 203 of system and the second blower fan 302 of room air discharge system opens work, and room air is according to interior
Circulation is operated, and the air after the dehumidifying of heat exchanger 131 turns Step9 afterwards through the heat temperature raising of heat exchanger 123.
Step12：Outdoor fresh air temperature Tfa_ is detected by the temperature sensor 502 at outdoor fresh air intake 404
Test, if Tfa_Test>Tfa_SetH, then turn Step13；If Tfa_SetL<Tfa_Test≤Tfa_SetH, then turn
Step14；If Tfa_Test≤Tfa_SetL, turn Step15.
Step13：Heat pump dehumidifies+worked without heat recovery mode according to fresh air side, and outdoor fresh air introduces the first of system
Air-valve 201, the second air-valve 301 of room air discharge system are opened, and the 3rd air-valve 403 on central dividing plate 402 is closed, outdoor
First blower fan 203 of Leads to new breeze system and the second blower fan 302 of room air discharge system open work, through heat exchanger 131
Interior is transported to after fresh air after dehumidifying and cooling is purified, the heat exchange that heat caused by dehumidifying passes through air air exhaust passage indoors
Device 113 takes outdoor to, turns Step9 afterwards.
Step14：Heat pump works according to fresh air side dehumidifying+part heat recovery mode, and outdoor fresh air introduces the of system
One air-valve 201, the second air-valve 301 of room air discharge system are opened, and the 3rd air-valve 403 on central dividing plate 402 is closed, room
First blower fan 203 of outer Leads to new breeze system and the second blower fan 302 of room air discharge system open work, through heat exchanger
Fresh air after 131 dehumidifying and coolings through heat exchanger 123 heat absorb and it is purified after be transported to interior, partial heat caused by dehumidifying
Outdoor is taken to by the heat exchanger 113 of air air exhaust passage indoors, another part heat passes to conveying by heat exchanger 123
To the fresh air of interior, turn Step9 afterwards.
Step15：Heat pump works according to fresh air side dehumidifying+total heat recovery pattern, and outdoor fresh air introduces the first of system
Air-valve 201, the second air-valve 301 of room air discharge system are opened, and the 3rd air-valve 403 on central dividing plate 402 is closed, outdoor
First blower fan 203 of Leads to new breeze system and the second blower fan 302 of room air discharge system open work, through heat exchanger 131
Fresh air after dehumidifying and cooling through heat exchanger 123 heat absorb and it is purified after be transported to interior, heat caused by dehumidifying is by changing
Hot device 123 passes to the fresh air for being transported to interior, turns Step9 afterwards.
It should be noted that the invention is not limited in any way for above-described embodiment, it is all to use equivalent substitution or equivalent change
The technical scheme that the mode changed is obtained, all falls within protection scope of the present invention.
Claims (7)
- A kind of 1. heat pump VMC, it is characterised in that including：Shell (401) and the heat pump system being arranged in shell (401) System, outdoor fresh air introduce system, room air discharge system and control system, wherein,The shell (401) is separated out outdoor fresh air circulation passage and room by the central dividing plate (402) with the 3rd air-valve (403) Interior air air exhaust passage, the symmetrical both ends of outdoor fresh air circulation passage are respectively arranged with outdoor fresh air intake (404), fresh air goes out Mouth (405), the symmetrical both ends of room air air exhaust passage are respectively arranged with outdoor air outlet (406), indoor exhaust wind mouth (407)；The outdoor fresh air introduces system and is disposed in the outdoor in fresh air circulation passage, and room air discharge system is disposed in the interior sky In gas air exhaust passage, compressor (101), four-way valve (102) and the part heat exchanger (113) of heat pump are disposed in the interior air In air exhaust passage, and between the second blower fan (302) and outdoor air outlet (406) of room air discharge system, heat pump The another part heat exchanger (123,131) of system is disposed in the outdoor in fresh air circulation passage, and is located outside Leads to new breeze Between the first blower fan (203) and outdoor fresh air intake (404) of system；The control system is by gathering temperature data and indoor exhaust wind mouth with Leads to new breeze mouth (404) place outside process chamber (407) humidity data at place, CO2Concentration data is new to the 3rd air-valve (403) on central dividing plate (402), heat pump, outdoor Wind introduces system and room air discharge system is controlled.
- 2. heat pump VMC according to claim 1, it is characterised in that the heat pump includes：Compressor (101), four-way valve (102), magnetic valve (111,121), heat exchanger (113,123,131), choke valve (114,125) if, involvement (103,110,112,115,120,122,124,126,130,132) and muffler (133) are taken over, wherein, four-way valve (102) D mouths are connected by connecting tube with compressor (101), and s mouths are connected by muffler (133) with compressor (101), c mouths and one Connecting tube (103) connects, and the root connecting tube (103) is divided into two branch roads in end, electromagnetism is disposed with each branch road Valve (111,121), heat exchanger (113,123) and choke valve (114,125), first branch road are disposed in the interior air air exhaust passage In, the magnetic valve (121) of second branch road is disposed in the interior in air air exhaust passage, heat exchanger (123) and choke valve (125) are set Put in outdoor fresh air circulation passage, the 3rd after two branch roads converge and positioned at second branch pipeline heat exchanger (123) upstream Heat exchanger (131) is connected, and the 3rd heat exchanger (131) is connected by connecting tube (132) with the e mouths of four-way valve (102).
- 3. heat pump VMC according to claim 1, it is characterised in that the outdoor fresh air, which introduces system, to be included：The One air-valve (201), the first screen pack (202), the first blower fan (203) and purification assembled unit (204), wherein, the first air-valve (201) and the first screen pack (202) is disposed in the outdoor Leads to new breeze mouth (404) place, and the first screen pack (202) is positioned at inner Side, the first blower fan (203) and purification assembled unit (204) are arranged on fresh air outlet (405) place, and the first blower fan (203) position In inboard.
- 4. heat pump VMC according to claim 1, it is characterised in that the room air discharge system includes：The Two air-valves (301), the second blower fan (302) and the second screen pack (303), wherein, the second air-valve (301) is disposed in the outdoor air outlet (406) place, the second blower fan (302) and the second screen pack (303) are disposed in the interior exhaust outlet (407) place, and the second blower fan (302) positioned at inboard.
- 5. heat pump VMC according to claim 1, it is characterised in that the control system includes：Controller (501), temperature sensor (502), CO2Sensor (503) and humidity sensor (504), wherein, temperature sensor (502) is set Put in outdoor fresh air intake (404) place, CO2Sensor (503) and humidity sensor (504) are disposed in the interior exhaust outlet (407) place, temperature sensor (502), CO2Sensor (503) and humidity sensor (504) connect with controller (501) signal Connect.
- 6. heat pump VMC according to claim 5, it is characterised in that the controller (501) is arranged in Interior Space In gas air exhaust passage.
- 7. the control method of the heat pump VMC described in claim 1 to 6 any one, it is characterised in that including following step Suddenly：Step1：Start；Step2：Indoor relative humidity RH_Test is detected by the humidity sensor (504) at indoor exhaust wind mouth (407) place, if RH_Test>RH_Set, then turn Step10；If RH_Test≤RH_Set, turn Step3；Step3：Pass through the CO at indoor exhaust wind mouth (407) place2Sensor (503) detects indoor CO2Concentration C O2_ Test, if CO2_Test>CO2_ Set, then turn Step5；If CO2_Test≤CO2_ Set, then turn Step4；Step4：Heat pump does not work, and whole heat pump VMC is operated in inner circulating air purification pattern, Zhi Houzhuan Step9；Step5：Outdoor fresh air temperature Tfa_Test is detected by the temperature sensor (502) at outdoor fresh air intake (404) place, If Tfa_Test>Tfa_SetH, then turn Step6；If Tfa_SetL<Tfa_Test≤Tfa_SetH, then turn Step7；Such as Fruit Tfa_Test≤Tfa_SetL, then turn Step8；Step6：Heat pump works according to fresh air side refrigeration mode, turns Step9 afterwards；Step7：Heat pump does not work, and whole heat pump VMC is operated in dew wind pattern, turns Step9 afterwards；Step8：Heat pump works according to fresh air side heating mode, turns Step9 afterwards；Step9：The controller (501) of control system receives the startup-shutdown instruction of heat pump VMC, if being not connected to shutdown Instruction, then turn Step2；If being connected to halt instruction, heat pump VMC is shut down；Step10：Pass through the CO at indoor exhaust wind mouth (407) place2Sensor (503) detects indoor CO2Concentration C O2_ Test, if CO2_Test>CO2_ Set, then turn Step12；If CO2_Test≤CO2_ Set, then turn Step11；Step11：Heat pump works according to circulating dehumidification pattern in fresh air side, turns Step9 afterwards；Step12：Outdoor fresh air temperature Tfa_ is detected by the temperature sensor (502) at outdoor fresh air intake (404) place Test, if Tfa_Test>Tfa_SetH, then turn Step13；If Tfa_SetL<Tfa_Test≤Tfa_SetH, then turn Step14；If Tfa_Test≤Tfa_SetL, turn Step15；Step13：Heat pump works according to fresh air side dehumidification mode, turns Step9 afterwards；Step14：Heat pump works according to fresh air side dehumidifying+part heat recovery mode, turns Step9 afterwards；Step15：Heat pump works according to fresh air side dehumidifying+total heat recovery pattern, turns Step9 afterwards.
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Effective date of registration: 20230420 Address after: 518000 R & D building 202, Founder science and Technology Industrial Park, north of Songbai highway, Longteng community, Shiyan street, Bao'an District, Shenzhen City, Guangdong Province Applicant after: KELIN BEISI (SHENZHEN) TECHNOLOGY CO.,LTD. Applicant after: Collinbeth (Guangdong) Technology Co.,Ltd. Address before: 518108, 3rd Floor, Building A3, Fangzheng Science and Technology Park, Shiyan Street, Bao'an District, Shenzhen City, Guangdong Province Applicant before: KELIN BEISI (SHENZHEN) TECHNOLOGY CO.,LTD. |
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Denomination of invention: A heat pump fresh air system and its control method Granted publication date: 20230509 Pledgee: Agricultural Bank of China Limited Zhongshan triangle sub branch Pledgor: Collinbeth (Guangdong) Technology Co.,Ltd. Registration number: Y2024980009607 |
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