CN110486871A - A kind of residual neat recovering system of central air-conditioning - Google Patents
A kind of residual neat recovering system of central air-conditioning Download PDFInfo
- Publication number
- CN110486871A CN110486871A CN201910700086.1A CN201910700086A CN110486871A CN 110486871 A CN110486871 A CN 110486871A CN 201910700086 A CN201910700086 A CN 201910700086A CN 110486871 A CN110486871 A CN 110486871A
- Authority
- CN
- China
- Prior art keywords
- heat
- exchanger
- heat exchanger
- pressure
- control unit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000004378 air conditioning Methods 0.000 title claims abstract description 42
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 142
- 230000005494 condensation Effects 0.000 claims abstract description 43
- 238000009833 condensation Methods 0.000 claims abstract description 43
- 238000010438 heat treatment Methods 0.000 claims description 18
- 238000004064 recycling Methods 0.000 claims description 6
- 239000002918 waste heat Substances 0.000 claims description 6
- 238000007710 freezing Methods 0.000 claims description 5
- 230000008014 freezing Effects 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims description 2
- 238000010926 purge Methods 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 5
- 238000011084 recovery Methods 0.000 description 8
- 230000001276 controlling effect Effects 0.000 description 6
- 239000007789 gas Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 238000007664 blowing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Classifications
-
- 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
- F24F11/72—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure
- F24F11/74—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity
- F24F11/77—Control systems characterised by their outputs; Constructional details thereof for controlling the supply of treated air, e.g. its pressure for controlling air flow rate or air velocity by controlling the speed of ventilators
-
- 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
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
-
- 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
- F24F11/89—Arrangement or mounting of control or safety devices
-
- 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
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28B—STEAM OR VAPOUR CONDENSERS
- F28B9/00—Auxiliary systems, arrangements, or devices
- F28B9/08—Auxiliary systems, arrangements, or devices for collecting and removing condensate
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/10—Pressure
- F24F2140/12—Heat-exchange fluid pressure
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2140/00—Control inputs relating to system states
- F24F2140/20—Heat-exchange fluid temperature
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The present invention provides a kind of residual neat recovering system of central air-conditioning, comprising: condensation water tank, heat exchanger, heat-exchanger pump and control unit.Heat exchanger is connected by circulation line with condensation water tank, the circulation line includes: the first water inlet pipe and the first outlet pipe, heat-exchanger pump is arranged on the first water inlet pipe, condensed water in condensation water tank is sent into heat exchanger by the first water inlet pipe by heat-exchanger pump, and is sent condensed water in condensation water tank back to by the first outlet pipe.Described control unit is used to control the on-off of the circulation line, and condensation water tank and heat exchanger is made to form the first heat-exchanging loop.The condensation water tank is formed by condensed water to the water vapour after central air-conditioning heat supply for collecting.The heat exchanger is used to carry out heat exchange to the heat in condensed water, carries out temperature adjusting with the air to factory floor or office.The present invention can save the energy consumption of factory's air-conditioning supply, improve efficiency of energy utilization.
Description
Technical field
The present invention relates to air conditioner energy saving technical field more particularly to a kind of residual neat recovering systems of central air-conditioning.
Background technique
Central air-conditioning in factory mainly provides water to central air-conditioning by gas fired-boiler steam and steams when heating to workshop
Vapour carries out the mode of heat supply, and water vapour forms condensed water because heat is absorbed after central air conditioner system, the condensed water
Water temperature can often reach 90 DEG C or so, and condensation water recovery system does not efficiently use the heat.Therefore, how to greatest extent
Ground utilizes the heat of condensed water, realizes energy-efficient, the environmentally protective purpose of factory, the energy got worse at present for alleviation
Source and environmental crisis, are of great significance.
Summary of the invention
The present invention provides a kind of residual neat recovering system of central air-conditioning, and the central air-conditioning operating solved in existing factory generates
The problem of heat recovery and utilization low efficiency, can save the energy consumption of factory's air-conditioning supply, improve efficiency of energy utilization.
In order to achieve the above object, the present invention the following technical schemes are provided:
A kind of residual neat recovering system of central air-conditioning, comprising: condensation water tank, heat exchanger, heat-exchanger pump and control unit；
The heat exchanger is connected by circulation line with the condensation water tank, and the circulation line includes: the first water inlet
Pipe and the first outlet pipe, the heat-exchanger pump are arranged on first water inlet pipe, and the heat-exchanger pump passes through first water inlet pipe
Condensed water in the condensation water tank is sent into the heat exchanger, and described in by first outlet pipe sending condensed water back to
In condensation water tank；
Described control unit is used to control the on-off of the circulation line, and the condensation water tank and heat exchanger is made to form the
One heat-exchanging loop；
The condensation water tank is formed by condensed water to the water vapour after central air-conditioning heat supply for collecting；
The heat exchanger is used to carry out heat exchange to the heat in condensed water, with the air to factory floor or office
Carry out temperature adjusting.
Preferably, the circulation line further include: distribution pipeline and pressure relief pipe；
One end of the distribution pipeline is connected with the water outlet of the heat-exchanger pump, the other end of the distribution pipeline with it is described
Condensation water tank is connected, and described control unit is also used to control the on-off of the distribution pipeline to form shunting circuit；
One end of the pressure relief pipe is connected with the water outlet of the heat-exchanger pump, the other end of the pressure relief pipe with it is described
Condensation water tank is connected, and described control unit is also used to control the on-off of the pressure relief pipe to form pressure release circuit.
Preferably, further includes: blower；
The blower is connect with described control unit signal, described control unit be also used to control the blower operating or
Stop；
The blower is for purging the heat exchanger, to flow through the heat exchanger and carry out heat exchange
Air is sent to factory floor or office.
Preferably, described control unit includes: electric control valve, motor-driven valve and pressure safety valve；
The electric control valve is arranged on first water inlet pipe, for controlling the on-off of first water inlet pipe；
The motor-driven valve is arranged on the distribution pipeline, for controlling the on-off of the distribution pipeline；
The pressure safety valve is arranged on the pressure relief pipe, is greater than for the water outlet pressure in the heat-exchanger pump and sets
The pressure release circuit is connected when level pressure force threshold.
Preferably, described control unit further include: PLC controller, the first temperature sensor and second temperature sensor；
First temperature sensor is arranged in condensation water tank, for detect the heat exchanger water inlet temperature and
Condensate temperature；The second temperature sensor is arranged on first outlet pipeline, for detecting the heat exchanger
Outlet temperature；
The first input end of the PLC controller is connected with the output end of first temperature sensor, the PLC control
Second input terminal of device is connected with the output end of the second temperature sensor；
First output end of the PLC controller is connected with the control terminal of the electric control valve, the PLC controller
Second output terminal is connected with the control terminal of the motor-driven valve, the control of the third output end and the heat-exchanger pump of the PLC controller
End processed is connected；
The PLC controller controls the electric control valve when receiving waste heat recycling open signal and opens, so that described
The conducting of first heat-exchanging loop, and control the heat-exchanger pump operating；
It when the PLC controller receives waste heat recycling stop signal, controls the electric control valve and closes, and control institute
Motor-driven valve unlatching is stated, so that the shunting circuit is connected.
Preferably, described control unit further include: first pressure sensor and second pressure sensor；
The exit of the heat-exchanger pump is arranged in the first pressure sensor, for detecting the water outlet pressure of the heat-exchanger pump
Power；
The second pressure sensor is arranged on first outlet pipe, for detecting the return water of first outlet pipe
Pressure；
The third input terminal of the PLC controller is connected with the output end of the first pressure sensor, the PLC control
4th input terminal of device is connected with the output end of the second pressure sensor；
When the difference of the pressure of return water and the discharge pressure is greater than setting pressure threshold, the PLC controller control
The aperture for making the electric control valve increases, to increase the condensate flow for flowing through the heat exchanger.
Preferably, described control unit further include: frequency converter；
The input terminal of the frequency converter is connected with external ac power source, the output end of the frequency converter and the heat-exchanger pump
Power input is connected, and the frequency converter is used to adjust the operating frequency of the heat-exchanger pump.
Preferably, further includes: the second water inlet pipe, the second outlet pipe and heating plant；
The heating plant is connected by the second water inlet pipe and second outlet pipe with the heat exchanger, the control
Unit is also used to control the on-off of second water inlet pipe Yu second outlet pipe, to form the second heat-exchanging loop；
The heating combined equipment carries out heat exchange to the heat exchanger by second heat-exchanging loop, with factory floor or
The air of office heats up, and the heating combined equipment is boiler heating system.
Preferably, further includes: third water inlet pipe, third outlet pipe and refrigerating plant；
The refrigerating plant is connected by third water inlet pipe and third outlet pipe with the heat exchanger, described control unit
It is also used to control the on-off of third water inlet pipe Yu the third outlet pipe, to form third heat-exchanging loop；
The refrigerating plant carries out heat exchange to the heat exchanger by the third heat-exchanging loop, to factory floor
Or the air of office cools down, the refrigerating plant is outdoor cooling tower and/or indoor freezing unit.
Preferably, the heat exchanger be it is following any one: A/C evaporator, surface air cooler and coil pipe.
The present invention provides a kind of residual neat recovering system of central air-conditioning, by heat-exchanger pump by the water vapour of central air-conditioning heat supply
The condensed water of condensation, which is sent into heat exchanger, carries out heat exchange, while by heat exchanger to the air of factory floor or office
Carry out temperature adjusting.It solves the problems, such as that the central air-conditioning operating in existing factory generates heat recovery and utilization low efficiency, can save
The energy consumption of factory's air-conditioning supply, improves efficiency of energy utilization.
Detailed description of the invention
In order to illustrate more clearly of specific embodiments of the present invention, attached drawing needed in the embodiment will be made below
Simply introduce.
Fig. 1 is a kind of residual neat recovering system schematic diagram of central air-conditioning provided by the invention；
Fig. 2 is heat exchanger provided in an embodiment of the present invention and condensation water tank connection schematic diagram.
Appended drawing reference
First heat-exchanging loop S1, the second heat-exchanging loop S2, third heat-exchanging loop S3, condensation water tank 1, condensing hot air furnace pipeline
2, solenoid valve 3, the first temperature sensor 4, the first water inlet pipe 7, heat-exchanger pump 6, first pressure sensor 9, electric control valve 10, heat
Exchanger 21, the first outlet pipe 14, exhaust pipe 23, exhaust valve 24, second temperature sensor 13, second pressure sensor 15,
Distribution pipeline 16, motor-driven valve 17, pressure relief pipe 19, pressure safety valve 20, PLC controller 12, frequency converter 5.
Specific embodiment
The scheme of embodiment in order to enable those skilled in the art to better understand the present invention with reference to the accompanying drawing and is implemented
Mode is described in further detail the embodiment of the present invention.
When for Current central air-conditioning to indoor carry out heat supply, the water vapour of boiler is needed to supply A/C evaporator
Heat will form condensed water in high temperature, and temperature can reach 90 DEG C or so, and condensation water recovery system does not efficiently use the heat
Amount.The present invention provides a kind of residual neat recovering system of central air-conditioning, by heat-exchanger pump by the water recovery of central air-conditioning heat supply
Condensed water be sent into heat exchanger and carry out heat exchange, while being carried out by air of the heat exchanger to factory floor or office
Temperature is adjusted.It solves the problems, such as that the central air-conditioning operating in existing factory generates heat recovery and utilization low efficiency, factory can be saved
The energy consumption of air-conditioning supply, improves efficiency of energy utilization.
As depicted in figs. 1 and 2, a kind of residual neat recovering system of central air-conditioning, comprising: condensation water tank, heat exchanger, hot water
Pump and control unit.The heat exchanger is connected by circulation line with the condensation water tank, and the circulation line includes: first
Water inlet pipe 7 and the first outlet pipe 14, the heat-exchanger pump 6 are arranged on first water inlet pipe 7, and the heat-exchanger pump 6 passes through described
Condensed water in the condensation water tank is sent into the heat exchanger 21 by the first water inlet pipe 7, and passes through first outlet pipe 14
Condensed water is sent back in the condensation water tank 1.Described control unit is used to control the on-off of the circulation line, makes the condensation
Water tank and heat exchanger form the first heat-exchanging loop S1.The condensation water tank is for collecting to the water vapour after central air-conditioning heat supply
It is formed by condensed water.The heat exchanger is used to carry out heat exchange to the heat in condensed water, to factory floor or office
The air of room carries out temperature adjusting.
Specifically, as shown in Fig. 2, condensation water tank 1 carries out collecting condensed water by condensing hot air furnace pipeline 2, solenoid valve 3 is set
It sets on condensing hot air furnace pipeline 2, for controlling the on-off of condensing hot air furnace pipeline.It will be in condensation water tank by heat-exchanger pump 6
Condensed water is sent into heat exchanger 21, wherein exhaust pipe 23 and exhaust valve 24 is equipped in heat exchanger, for discharging heat exchange
The gas of device interior conduit.Condensed water is entered in heat exchanger 21 by the first water inlet pipe 7 and the first outlet pipe 14, makes condensation water tank
Heat exchange cycle is carried out by the first heat-exchanging loop S1 with heat exchanger 21.In practical applications, water vapour passes through central air-conditioning
After evaporator absorbs heat, the temperature for generating condensed water can reach 90 DEG C or so, after over-heat-exchanger exchanges heat, can make condensed water
Temperature further decrease, so that the heat of condensed water is can increase the air-conditioning air temperature of factory floor or office, can further benefit
Air is heated with condensation water residual heat.The use of the steam and natural gas of gas fired-boiler can be made sharp fall, also
A large amount of electric energy and water consumption can be saved, saves huge cost to user.
As shown in Fig. 2, the circulation line further include: distribution pipeline 16 and pressure relief pipe 19.The distribution pipeline 16
One end is connected with the water outlet of the heat-exchanger pump 6, and the other end of the distribution pipeline 16 is connected with the condensation water tank 1, described
Control unit is also used to control the on-off of the distribution pipeline to form shunting circuit.One end of the pressure relief pipe 19 with it is described
The water outlet of heat-exchanger pump 6 is connected, and the other end of the pressure relief pipe 19 is connected with the condensation water tank 1, and described control unit is also
For controlling the on-off of the pressure relief pipe to form pressure release circuit.
Further, system further include: blower (not shown).The blower is connect with described control unit signal,
Described control unit is also used to control the operating or stopping of the blower.The blower is for blowing the heat exchanger
It sweeps, is sent with flowing through the heat exchanger and carrying out the air of heat exchange to factory floor or office.
In practical applications, in order to increase the heat exchange efficiency of heat exchanger, by being arranged heat exchanger in chamber body,
And heat exchanger is purged by blower, and then the air after heat exchange is transported to by factory floor or office by air hose
It is interior.Certain air can also be specifically arranged by reusing after filter cleaning with actual demand.
As shown in Fig. 2, described control unit includes: electric control valve 10, motor-driven valve 17 and pressure safety valve 20.The electricity
Dynamic regulating valve 10 is arranged on first water inlet pipe 7, for controlling the on-off of first water inlet pipe.The motor-driven valve 17 is set
It sets on the distribution pipeline 16, for controlling the on-off of the distribution pipeline.The setting of pressure safety valve 20 is let out described
On pressure pipe road 19, the pressure release circuit is connected when being greater than setting pressure threshold for the water outlet pressure in the heat-exchanger pump.
Further, described control unit further include: PLC controller 12, the first temperature sensor 4 and second temperature sensor
13.First temperature sensor 4 is arranged in condensation water tank 1, for detecting the water inlet temperature of the heat exchanger and cold
Condensate temperature；The second temperature sensor 13 is arranged on first outlet pipeline 14, for detecting the heat exchanger
Outlet temperature.The first input end of the PLC controller 12 is connected with the output end of first temperature sensor 4, institute
The second input terminal for stating PLC controller is connected with the output end of the second temperature sensor 13.The of the PLC controller 12
One output end is connected with the control terminal of the electric control valve 10, the second output terminal of the PLC controller 12 with it is described electronic
The control terminal of valve 17 is connected, and the third output end of the PLC controller 12 is connected with the control terminal of the heat-exchanger pump 6.The PLC
Controller 12 controls the electric control valve when receiving waste heat recycling open signal and opens, so that first heat-exchanging loop is led
It is logical, and control the heat-exchanger pump operating.When the PLC controller receives waste heat recycling stop signal, the electric adjustable is controlled
It saves valve 10 to close, and the control motor-driven valve 17 is opened, so that the shunting circuit is connected.
Further, described control unit further include: first pressure sensor 9 and second pressure sensor 15.Described
The exit of the heat-exchanger pump 6 is arranged in one pressure sensor 9, for detecting the discharge pressure of the heat-exchanger pump.Described second
Pressure sensor 15 is arranged on first outlet pipe 14, for detecting the pressure of return water of first outlet pipe.The PLC
The third input terminal of controller 12 is connected with the output end of the first pressure sensor 9, and the 4th of the PLC controller 12 is defeated
Enter end to be connected with the output end of the second pressure sensor 15.It is greater than in the difference of the pressure of return water and the discharge pressure
When setting pressure threshold, the aperture that the PLC controller controls the electric control valve increases, and flows through the heat exchange to increase
The condensate flow of device.
Described control unit further include: frequency converter 5；The input terminal of the frequency converter 5 is connected with external ac power source, described
The output end of frequency converter 5 is connected with the power input of the heat-exchanger pump 6, and the frequency converter is used to adjust the fortune of the heat-exchanger pump
Turn frequency.
As shown in Figure 1, hot water directly can be provided to heat exchanger by boiler system, to carry out hot friendship for heat exchanger
It changes, is equivalent to the heating function of water-heating system.That is system further include: the second water inlet pipe, the second outlet pipe and heating plant.Institute
It states heating plant to be connected by the second water inlet pipe and second outlet pipe with the heat exchanger, described control unit is also used to
The on-off of second water inlet pipe Yu second outlet pipe is controlled, to form the second heat-exchanging loop.The heating combined equipment passes through
Second heat-exchanging loop carries out heat exchange to the heat exchanger, is heated up with the air of factory floor or office, institute
Stating heating combined equipment is boiler heating system.
As shown in Figure 1, the system further include: third water inlet pipe, third outlet pipe and refrigerating plant.The refrigerating plant is logical
Cross third water inlet pipe and third outlet pipe be connected with the heat exchanger, described control unit be also used to control third water inlet pipe with
The on-off of the third outlet pipe, to form third heat-exchanging loop.The refrigerating plant is by the third heat-exchanging loop to institute
It states heat exchanger and carries out heat exchange, cooled down with the air to factory floor or office, the refrigerating plant is outdoor cold
But tower and/or indoor freezing unit.
In practical applications, residual heat system can be also used for freezing to the air of factory floor or office, will be hot
The cold water that exchanger and cooling tower or freezing unit generate is directly entered in heat exchanger, is blown by blower heat exchanger
It sweeps, the air themperature for flowing through heat exchanger reduces, and is sent into factory floor or office.
Further, the heat exchanger be it is following any one: A/C evaporator, surface air cooler and coil pipe.
As it can be seen that the present invention provides a kind of residual neat recovering system of central air-conditioning, by heat-exchanger pump by central air-conditioning heat supply
The condensed water of water recovery, which is sent into heat exchanger, carries out heat exchange, while by heat exchanger to factory floor or office
Air carry out temperature adjusting.Solve the problems, such as that the central air-conditioning operating in existing factory generates heat recovery and utilization low efficiency,
The energy consumption of factory's air-conditioning supply can be saved, efficiency of energy utilization is improved.
Structure, feature and effect of the invention, the above institute is described in detail according to diagrammatically shown embodiment above
Only presently preferred embodiments of the present invention is stated, but the present invention does not limit the scope of implementation as shown in the drawings, it is all according to structure of the invention
Think made change or equivalent example modified to equivalent change, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (10)
1. a kind of residual neat recovering system of central air-conditioning characterized by comprising condensation water tank, heat exchanger, heat-exchanger pump and control
Unit processed；
The heat exchanger is connected by circulation line with the condensation water tank, the circulation line include: the first water inlet pipe with
First outlet pipe, the heat-exchanger pump are arranged on first water inlet pipe, and the heat-exchanger pump passes through first water inlet pipe for institute
The condensed water stated in condensation water tank is sent into the heat exchanger, and sends condensed water back to the condensation by first outlet pipe
In water tank；
Described control unit is used to control the on-off of the circulation line, so that the condensation water tank is formed first with heat exchanger and changes
Hot loop；
The condensation water tank is formed by condensed water to the water vapour after central air-conditioning heat supply for collecting；
The heat exchanger is used to carry out heat exchange to the heat in condensed water, is carried out with the air to factory floor or office
Temperature is adjusted.
2. the residual neat recovering system of central air-conditioning according to claim 1, which is characterized in that the circulation line also wraps
It includes: distribution pipeline and pressure relief pipe；
One end of the distribution pipeline is connected with the water outlet of the heat-exchanger pump, the other end of the distribution pipeline and the condensation
Water tank is connected, and described control unit is also used to control the on-off of the distribution pipeline to form shunting circuit；
One end of the pressure relief pipe is connected with the water outlet of the heat-exchanger pump, the other end of the pressure relief pipe and the condensation
Water tank is connected, and described control unit is also used to control the on-off of the pressure relief pipe to form pressure release circuit.
3. the residual neat recovering system of central air-conditioning according to claim 2, which is characterized in that further include: blower；
The blower is connect with described control unit signal, and described control unit is also used to control the operating of the blower or stops
Only；
The blower is for purging the heat exchanger, to flow through the heat exchanger and carry out the air of heat exchange
It send to factory floor or office.
4. the residual neat recovering system of central air-conditioning according to claim 3, which is characterized in that described control unit includes:
Electric control valve, motor-driven valve and pressure safety valve；
The electric control valve is arranged on first water inlet pipe, for controlling the on-off of first water inlet pipe；
The motor-driven valve is arranged on the distribution pipeline, for controlling the on-off of the distribution pipeline；
The pressure safety valve is arranged on the pressure relief pipe, is greater than setting pressure for the water outlet pressure in the heat-exchanger pump
The pressure release circuit is connected when force threshold.
5. the residual neat recovering system of central air-conditioning according to claim 4, which is characterized in that described control unit is also wrapped
It includes: PLC controller, the first temperature sensor and second temperature sensor；
First temperature sensor is arranged in condensation water tank, for detecting the water inlet temperature and condensation of the heat exchanger
Coolant-temperature gage；The second temperature sensor is arranged on first outlet pipeline, for detecting the water outlet of the heat exchanger
Mouth temperature；
The first input end of the PLC controller is connected with the output end of first temperature sensor, the PLC controller
Second input terminal is connected with the output end of the second temperature sensor；
First output end of the PLC controller is connected with the control terminal of the electric control valve, and the second of the PLC controller
Output end is connected with the control terminal of the motor-driven valve, the third output end of the PLC controller and the control terminal of the heat-exchanger pump
It is connected；
The PLC controller controls the electric control valve when receiving waste heat recycling open signal and opens, so that described first
Heat-exchanging loop conducting, and control the heat-exchanger pump operating；
It when the PLC controller receives waste heat recycling stop signal, controls the electric control valve and closes, and the control electricity
Dynamic valve is opened, so that the shunting circuit is connected.
6. the residual neat recovering system of central air-conditioning according to claim 5, which is characterized in that described control unit is also wrapped
It includes: first pressure sensor and second pressure sensor；
The exit of the heat-exchanger pump is arranged in the first pressure sensor, for detecting the discharge pressure of the heat-exchanger pump；
The second pressure sensor is arranged on first outlet pipe, for detecting the return water pressure of first outlet pipe
Power；
The third input terminal of the PLC controller is connected with the output end of the first pressure sensor, the PLC controller
4th input terminal is connected with the output end of the second pressure sensor；
When the difference of the pressure of return water and the discharge pressure is greater than setting pressure threshold, the PLC controller controls institute
The aperture for stating electric control valve increases, to increase the condensate flow for flowing through the heat exchanger.
7. the residual neat recovering system of central air-conditioning according to claim 6, which is characterized in that described control unit is also wrapped
It includes: frequency converter；
The input terminal of the frequency converter is connected with external ac power source, the power supply of the output end of the frequency converter and the heat-exchanger pump
Input terminal is connected, and the frequency converter is used to adjust the operating frequency of the heat-exchanger pump.
8. the residual neat recovering system of central air-conditioning according to claim 7, which is characterized in that further include: the second water inlet pipe,
Second outlet pipe and heating plant；
The heating plant is connected by the second water inlet pipe and second outlet pipe with the heat exchanger, described control unit
It is also used to control the on-off of second water inlet pipe Yu second outlet pipe, to form the second heat-exchanging loop；
The heating combined equipment carries out heat exchange to the heat exchanger by second heat-exchanging loop, with factory floor or office
The air of room heats up, and the heating combined equipment is boiler heating system.
9. the residual neat recovering system of central air-conditioning according to claim 8, which is characterized in that further include: third water inlet pipe,
Third outlet pipe and refrigerating plant；
The refrigerating plant is connected by third water inlet pipe and third outlet pipe with the heat exchanger, and described control unit is also used
In the on-off of control third water inlet pipe and the third outlet pipe, to form third heat-exchanging loop；
The refrigerating plant carries out heat exchange to the heat exchanger by the third heat-exchanging loop, to factory floor or to do
The air of public room cools down, and the refrigerating plant is outdoor cooling tower and/or indoor freezing unit.
10. the residual neat recovering system of central air-conditioning according to any one of claims 1 to 9, which is characterized in that the heat is handed over
Parallel operation be it is following any one: A/C evaporator, surface air cooler and coil pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910700086.1A CN110486871A (en) | 2019-07-31 | 2019-07-31 | A kind of residual neat recovering system of central air-conditioning |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910700086.1A CN110486871A (en) | 2019-07-31 | 2019-07-31 | A kind of residual neat recovering system of central air-conditioning |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110486871A true CN110486871A (en) | 2019-11-22 |
Family
ID=68548888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910700086.1A Pending CN110486871A (en) | 2019-07-31 | 2019-07-31 | A kind of residual neat recovering system of central air-conditioning |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110486871A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189334A (en) * | 2020-01-03 | 2020-05-22 | 江苏中迪节能科技有限公司 | Air cooler waste heat recovery system |
| CN111412638A (en) * | 2020-03-19 | 2020-07-14 | 宁波奥克斯电气股份有限公司 | Waste heat recovery system of air conditioner and air conditioner |
| CN112944647A (en) * | 2021-02-04 | 2021-06-11 | 广州恒星制冷设备集团有限公司 | Embedded heat recovery unit |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201407781Y (en) * | 2009-05-04 | 2010-02-17 | 覃希 | Central air-conditioning waste heat recovery system utilizing dual-conversion thermostatic control technology |
| CN102287861A (en) * | 2011-05-26 | 2011-12-21 | 潍坊佳禾节能科技有限公司 | Heating afterheat automatically reclaiming system |
| CN106440314A (en) * | 2016-10-26 | 2017-02-22 | 深圳市得益节能科技股份有限公司 | Central air-conditioning condensed water recovery system and method |
| CN211060284U (en) * | 2019-07-31 | 2020-07-21 | 河南中烟工业有限责任公司 | Waste heat recovery system of central air conditioner |
-
2019
- 2019-07-31 CN CN201910700086.1A patent/CN110486871A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201407781Y (en) * | 2009-05-04 | 2010-02-17 | 覃希 | Central air-conditioning waste heat recovery system utilizing dual-conversion thermostatic control technology |
| CN102287861A (en) * | 2011-05-26 | 2011-12-21 | 潍坊佳禾节能科技有限公司 | Heating afterheat automatically reclaiming system |
| CN106440314A (en) * | 2016-10-26 | 2017-02-22 | 深圳市得益节能科技股份有限公司 | Central air-conditioning condensed water recovery system and method |
| CN211060284U (en) * | 2019-07-31 | 2020-07-21 | 河南中烟工业有限责任公司 | Waste heat recovery system of central air conditioner |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189334A (en) * | 2020-01-03 | 2020-05-22 | 江苏中迪节能科技有限公司 | Air cooler waste heat recovery system |
| CN111412638A (en) * | 2020-03-19 | 2020-07-14 | 宁波奥克斯电气股份有限公司 | Waste heat recovery system of air conditioner and air conditioner |
| CN112944647A (en) * | 2021-02-04 | 2021-06-11 | 广州恒星制冷设备集团有限公司 | Embedded heat recovery unit |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205939805U (en) | Integrated machine of air conditioner and water heater | |
| CN110486871A (en) | A kind of residual neat recovering system of central air-conditioning | |
| CN101221007B (en) | Air source heat pump hot water units | |
| CN204329323U (en) | Be suitable for the Teat pump boiler recycling kitchen residual heat | |
| CN105423594A (en) | Heating normal-temperature smoke discharge smoke hot water type lithium bromide absorbing type cold and hot water unit | |
| CN105444464A (en) | Smoke-type lithium bromide absorption type water chiller-heater unit for heating and normal temperature smoke exhaust | |
| CN105716182A (en) | Cold and heat continuous supply system and method for cyclic recycling waste heat of cold utilization equipment | |
| CN201599983U (en) | Total heat recovery air cooled heat pump unit | |
| CN201569214U (en) | Multifunctional air source heat pump water heater | |
| CN102235746B (en) | Quick water heating device for heat pump | |
| CN105509365A (en) | Efficient heating smoke water-heating type lithium bromide absorption type water chiller-heater unit | |
| CN211060284U (en) | Waste heat recovery system of central air conditioner | |
| CN105423596A (en) | Heating efficient smoke type lithium bromide absorbing type cold and hot water unit | |
| CN202066249U (en) | Device for recycling heat of air conditioner | |
| CN202085655U (en) | Hot water generator for milk cooling tank | |
| CN203533777U (en) | Preheating device of air conditioner humidifier | |
| CN201110610Y (en) | Humidifying air conditioner system | |
| CN204373118U (en) | The heating and air-conditioning system that thermal power plant electric heat pump and steam-operating heat pump combine | |
| CN206753663U (en) | A kind of hot water converts mechanical dynamic system | |
| CN105042746A (en) | Pure water cooling and heating heat pump of air conditioner | |
| CN105758060B (en) | A kind of solar heat pump and water heating, cold air, heating all-in-one | |
| CN214746193U (en) | Solar power device for building air conditioner | |
| CN102901159A (en) | Solution heating and humidifying air-conditioning unit | |
| CN205349532U (en) | Gas steam combination system | |
| CN214581535U (en) | Direct evaporation type centralized air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |