CN111947264B - Residential district radiation heating and cooling system and operation control method - Google Patents
Residential district radiation heating and cooling system and operation control method Download PDFInfo
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- CN111947264B CN111947264B CN202010976854.9A CN202010976854A CN111947264B CN 111947264 B CN111947264 B CN 111947264B CN 202010976854 A CN202010976854 A CN 202010976854A CN 111947264 B CN111947264 B CN 111947264B
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- 238000010438 heat treatment Methods 0.000 title claims abstract description 42
- 238000001816 cooling Methods 0.000 title claims abstract description 40
- 230000005855 radiation Effects 0.000 title claims abstract description 40
- 238000000034 method Methods 0.000 title claims abstract description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 152
- 238000007791 dehumidification Methods 0.000 claims abstract description 35
- 230000001105 regulatory effect Effects 0.000 claims description 41
- 230000008569 process Effects 0.000 claims description 14
- 230000001276 controlling effect Effects 0.000 claims description 2
- 230000005494 condensation Effects 0.000 abstract description 7
- 238000009833 condensation Methods 0.000 abstract description 7
- 238000012544 monitoring process Methods 0.000 description 9
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000009467 reduction Effects 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
- 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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D15/00—Other domestic- or space-heating systems
- F24D15/04—Other domestic- or space-heating systems using heat pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
- F24D19/10—Arrangement or mounting of control or safety devices
- F24D19/1006—Arrangement or mounting of control or safety devices for water heating systems
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/89—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
- 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
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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
- 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
- F24F5/0089—Systems using radiation from walls or panels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/10—Temperature
- F24F2110/12—Temperature of the outside air
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F2110/00—Control inputs relating to air properties
- F24F2110/20—Humidity
- F24F2110/22—Humidity of the outside air
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/12—Hot water central heating systems using heat pumps
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention provides a radiation heating and cooling system and an operation control method for a residential district, wherein the system comprises an energy station, a circulating pump, a user side and a circulating pipeline, the energy station comprises a plurality of groups of heat pump units and an energy station control system, and the user side comprises a water-cooled dehumidification cabinet, a water separator, a water collector, an indoor operation control system, a fifth temperature sensor, a first dew point sensor and a radiation pipeline. The radiant heating and cooling system can realize district heating and cooling requirements, improves the utilization rate of the heat pump unit, and simultaneously, by utilizing the operation control method provided by the invention, the problem of floor condensation can be greatly reduced in the cooling stage, thereby ensuring the cooling requirement supply of users.
Description
Technical Field
The invention relates to a radiation heating and cooling system and an operation control method for a residential district.
Background
At present, the heat pump unit can realize dual purposes of 'floor heating air conditioner' and can be used as a cold source of the air conditioner in summer and a heat source of floor heating in winter, and one set of equipment can solve the requirements of cooling in summer and heating in winter. The floor radiation heating system has the advantages of good indoor temperature uniformity, good comfort, small temperature gradient, meeting the physiological requirement of human body, not affecting the indoor use area and the like, and is widely applied to heating systems. The floor radiation cooling system has not been widely used at present, and the key of the problem is the condensation problem of the floor cooling system in summer, and when the surface temperature is lower than the indoor dew point temperature, the surface condensation phenomenon can be generated.
For the traditional radiation cooling air conditioner cooling system, the independent control of the cooling temperature of the floor is technically feasible to prevent condensation of the floor, but the risk of condensation is increased along with the reduction of the indoor temperature, so that the indoor cooling effect is limited. Aiming at the damp and stuffy weather with high temperature and high humidity and the uncontrollable factors such as the opening of a window and a door of a user, the condensation and the cooling effect of the floor can be inevitably influenced. How to effectively ensure the cooling effect and solve the problem of dew condensation is one of the key problems faced by the radiation cooling air conditioning system.
Disclosure of Invention
The invention aims to provide a radiation heating and cooling system and an operation control method for residential communities, which can be used for realizing community heating and cooling requirements and improving the utilization rate of a heat pump unit.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a residential district radiation heating cooling system, includes energy resource station, circulating pump, user side and circulation pipeline, the energy resource station includes a plurality of groups heat pump unit and energy resource station control system, the user side includes water-cooled dehumidification cabinet, water knockout drum, water collector, indoor operation control system, fifth temperature sensor, first dew point sensor, radiation pipeline, water-cooled dehumidification cabinet is used for indoor accuse temperature dehumidification of resident be provided with a plurality of between water knockout drum and the water collector the radiation pipeline, a plurality of the radiation pipeline coils respectively and distributes in the floor of each room of resident, all is provided with fifth temperature sensor and first dew point sensor in each room of resident, the operation of energy resource station control system steerable heat pump unit, indoor operation control system with fifth temperature sensor, first dew point sensor and water-cooled dehumidification cabinet electric connection, the circulation pipeline is used for realizing the rivers circulation between energy resource station and each radiation pipeline.
Preferably, an outdoor temperature and humidity sensor is further arranged in the energy station, and the outdoor temperature and humidity sensor is electrically connected with the energy station control system.
Further, the circulation pipeline comprises a heat pump water supply collecting pipe, a heat pump water return collecting pipe, a water supply conveying main pipe, a water return conveying main pipe, a household unit water supply pipe, a household unit water return pipe, a water supply inlet main pipe and a water return outlet main pipe, a plurality of water outlets of the heat pump unit are communicated with a water inlet of the water distributor through connection of the heat pump water supply collecting pipe, the water supply conveying main pipe, the household unit water supply pipe and the water supply inlet main pipe, a plurality of water inlets of the heat pump unit are communicated with a water outlet of the water collector through connection of the heat pump water return collecting pipe, the water return conveying main pipe, the household unit water return pipe and the water return outlet main pipe, a first temperature sensor and a first pressure sensor are arranged on the water supply conveying main pipe, the circulation pump is connected with the water return conveying main pipe in series, a first electric control valve is connected with the water inlet main pipe in series, a second electric control valve and a second temperature sensor are arranged on the water supply inlet main pipe, each radiation main pipe is connected with a first electric control valve in series with a dehumidifying main pipe, a first humidity sensor is arranged on one side of the water outlet main pipe, a second electric control valve is connected with the water outlet main pipe, a first humidity sensor is connected with a first humidity sensor, a second humidity sensor is arranged on the water outlet main pipe, and a first humidity sensor is connected with a first humidity sensor The indoor operation control system is electrically connected with the second electric control regulating valve, the second temperature sensor, the electric control three-way valve, the third electric control regulating valve and the third temperature sensor.
Further, each heat pump host in the heat pump unit is a screw type air cooling air heat source pump.
The invention also provides an operation control method of the residential district radiation heating and cooling system, which comprises the following steps:
S1, starting an energy station control system, wherein the energy station control system automatically starts all indoor operation control systems;
S2, the energy station control system regulates and controls the opening degree of the first electric control regulating valve in real time according to the water quantity condition of the backwater conveying main pipe so as to realize the normal operation of the heat pump unit, meanwhile, the energy station control system compares the set environment temperature values T1 and T2 in the heat pump unit with the monitored external environment temperature T3 in real time, when T3 is smaller than T1, the energy station control system and the indoor operation control system enter a heating working mode, and when T3 is larger than T2, the energy station control system and the indoor operation control system enter a refrigerating working mode;
S2.1, in the process that the energy station control system and the indoor operation control system are in a heating operation mode, the heat pump unit sets an operation set point and operates to heat according to the indoor temperature standard reaching rate of a user, the feedback backwater temperature on the backwater conveying main pipe and the outdoor temperature, so that hot water supply of the heat pump unit is realized; in the process of heating operation, the indoor operation control system adjusts the opening degree of the second electric control regulating valve according to the indoor set temperature, the indoor water temperature, the outdoor water temperature and the indoor temperature set by a user on the indoor operation control system so as to realize the heating implementation requirement of the user;
S2.2, in the process that the energy station control system and the indoor operation control system are in a refrigerating working mode, each indoor operation control system calculates the difference value between the floor temperature T4 of each room and the dew point value T5 of each room in real time, calculates the average value Y of each difference value, compares the Y value with critical threshold values C1 and C2 set in the indoor operation control system in real time, and marks the user as a fine adjustment user when Y is more than C1, and simultaneously, sends information for marking the fine adjustment user to the energy station control system, and is marked as a resident of the fine adjustment user; when C1 is more than or equal to Y is more than or equal to C2, the indoor operation control system marks the user as a medium-adjustment user, and simultaneously, sends information of the marked medium-adjustment user to the energy station control system, and the user marked as the medium-adjustment user is a resident of the medium-adjustment user, wherein the indoor water-cooling type dehumidification cabinet is in an open state under the control of the indoor operation control system, and a third electric control regulating valve on a radiation pipeline in each room is in a full-open state; when Y is less than C2, the indoor operation control system marks the user as a full-adjustment user, and simultaneously, sends information of the marked full-adjustment user to the energy station control system, and a resident marked as the full-adjustment user, under the control of the indoor operation control system, the indoor water-cooling type dehumidification cabinet is in an open state, and a third electric control regulating valve on a radiation pipeline in each room regulates the opening degree in real time according to the difference value between the floor temperature and the dew point value in the room;
S2.2.1, in the running process of each fine tuning user, middle tuning user and full tuning user according to the running modes, the energy station control system calculates the duty ratio A of the number of the full tuning users in the total amount of the fine tuning user, the middle tuning user and the full tuning user, compares the duty ratio A with the duty ratio threshold B set in the system, and when A is less than or equal to B, the energy station control system enables the heat pump unit to enter a non-full tuning area working mode running state; when A is more than B, the energy station control system enables the heat pump unit to enter a full-regulation-area working mode running state.
The beneficial effects of the invention are as follows: the invention adopts the air source heat pump as a heat source and a cold source for cooling and heating of the floors in the district, improves the utilization rate of equipment and a pipe network, and reduces the investment cost; the indoor operation control system, the dew point collector, the dehumidifying cabinet and other devices are arranged indoors, so that indoor temperature and humidity control effects are improved.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are some preferred embodiments of the invention and that other drawings can be obtained from these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram of the overall structure of the present invention;
FIG. 2 is a flow chart of the logic of operation of the present invention;
FIG. 3 is a logic flow diagram of the operation of the present invention in a cooling mode of operation;
In the figure: the system comprises a1 energy station, a 11 heat pump unit, a 12 energy station control system, a 13 outdoor temperature and humidity sensor, a2 circulating pump, a3 user side, a 31 water-cooled dehumidification cabinet, a 32 water separator, a 33 water collector, a 34 indoor operation control system, a 35 dew point sensor, a 101 heat pump water supply collecting pipe, a 102 heat pump water return collecting pipe, a 103 water supply conveying main pipe, a 104 water return conveying main pipe, a 105 household unit water supply pipe, a 106 household unit water return pipe, a 107 water supply household main pipe, a 108 water return household main pipe, a 109 dehumidification cabinet water inlet pipe, a 110 dehumidification cabinet water outlet pipe, a 111 radiation pipeline, a 201 first temperature sensor, a 202 second temperature sensor, a 203 third temperature sensor, a 204 fourth temperature sensor, a 301 first pressure sensor, a 302 second pressure sensor, a 401 first flow sensor, a 501 first electric control regulating valve, a 502 second electric control regulating valve, a 503 third electric control regulating valve and a 601 electric control three-way regulating valve.
Detailed Description
The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to specific embodiments and fig. 1 to 3, and it is obvious that the described embodiments are only some of the preferred embodiments of the present invention, but not all embodiments. Similar modifications can be made by those skilled in the art without departing from the spirit of the invention, and therefore the invention is not to be limited by the specific embodiments disclosed below.
The invention provides a residential district radiation heating and cooling system (shown in figure 1), which comprises an energy station 1, a circulating pump 2, a user side 3 and a circulating pipeline, wherein the energy station 1 comprises a plurality of groups of heat pump units 11 and an energy station control system 12, and in the specific embodiment, each heat pump host in the heat pump units 11 can be a screw type air cooling air heat source pump; the energy station 1 supplies heat and cold for a district and finally is embodied in each user room, the user end 3 is a single resident in the current residential district, the user end 3 comprises a water-cooled dehumidification cabinet 31, a water distributor 32, a water collector 33, an indoor operation control system 34, a fifth temperature sensor 205, a first dew point sensor 35 and a radiation pipeline 111, the water-cooled dehumidification cabinet 31 is used for indoor temperature control dehumidification of the resident, a plurality of radiation pipelines 111 are arranged between the water distributor 32 and the water collector 33, the plurality of radiation pipelines 111 are respectively coiled and distributed in floors of each room of the resident, each room of the resident realizes heating or cold supply through the corresponding radiation pipeline 111 in the floor of the resident, the fifth temperature sensor 205 and the first dew point sensor 35 are arranged in each room of the resident, the fifth temperature sensor 205 is used for monitoring temperature change in the corresponding room in real time, the first dew point sensor 35 is used for monitoring dew point value in the corresponding room in real time, the energy station control system 12 can control the indoor operation control system 11, the water-cooled heat pump system 205 is connected with the first dew point sensor 35 and the indoor operation control system, the water-cooled heat pump system is connected with the first dew point sensor 35, and the water-cooled heat pump system is circulated, and the water circulation system is realized, and the water-cooled heat pump system is connected with the first dew point sensor 35 and the indoor unit is circulated, and the water-cooled heat pump system is connected with the water-cooled heat pump system.
In this embodiment, in order to facilitate the energy station 1 to regulate and control the working conditions with reference to the outdoor temperature and the outdoor humidity so as to meet the heating or cooling requirements to the greatest extent, an outdoor temperature and humidity sensor 13 is disposed in the energy station 1, and the outdoor temperature and humidity sensor 13 is electrically connected with the energy station control system 12.
In this embodiment, the specific implementation manner of the circulation pipeline for implementing the water supply circulation between the energy station 1 and the user terminal 3 is: the circulation pipeline comprises a heat pump water supply collecting pipe 101, a heat pump water return collecting pipe 102, a water supply conveying main pipe 103, a water return conveying main pipe 104, a household unit water supply pipe 105, a household unit water return pipe 106, a water supply household main pipe 107 and a water return household main pipe 108, the water outlets of a plurality of heat pump units 11 are communicated with the water inlets of the water separator 32 through the connection of the heat pump water supply collecting pipe 101, the water supply conveying main pipe 103, the household unit water supply pipe 105 and the water supply household main pipe 107, thereby realizing that the heat pump unit 11 supplies water into the water separator 32, the water inlets of a plurality of the heat pump units 11 are communicated with the water outlets of the water collector 33 through the connection of the heat pump water return collecting pipe 102, the water return conveying main pipe 104, the household unit water return pipe 106 and the water return outlet main pipe 108, so as to realize that the water in the water collector 33 returns into the heat pump unit 11 to absorb heat or release heat again, the water supply conveying main pipe 103 is provided with a first temperature sensor 201 and a first pressure sensor 301, the first temperature sensor 201 is used for monitoring the water supply temperature in real time, the first pressure sensor 301 is used for monitoring the water supply pressure in real time, A second pressure sensor 302, a fourth temperature sensor 204 and a first flow sensor 401 are arranged on the backwater conveying main pipe 104, the second pressure sensor 302 is used for monitoring backwater pressure in real time, the fourth temperature sensor 204 is used for monitoring backwater temperature in real time, the first flow sensor 401 is used for monitoring backwater flow in real time, the circulating pump 2 is connected on the backwater conveying main pipe 104 in series, the circulating pump 2 operates to realize the circulating flow of water flow between the energy station 1 and the user end 3, a first electric control regulating valve 501 is connected between the water supply conveying main pipe 103 and the backwater conveying main pipe 104 in series, the flow rate on the backwater conveying main pipe 104 is adjusted by adjusting and controlling the opening of the first electric control adjusting valve 501 so as to meet the flow rate requirement of heat pump operation, a second electric control adjusting valve 502 and a second temperature sensor 202 are arranged on the water supply main pipe 107, a third electric control adjusting valve 503 is connected in series on each radiation pipeline 111, the third electric control adjusting valve 503 is adjacent to the water separator 32, the water-cooled dehumidification cabinet 31 is connected with one side of the water supply main pipe 107 in parallel through the dehumidification cabinet water inlet pipe 109 and the dehumidification cabinet water outlet pipe 110, the water inlet end of the dehumidification cabinet water inlet pipe 109 is communicated with an electric control three-way valve 601 arranged on the water supply main pipe 107, The water-cooled dehumidification cabinet 31 can be opened and closed by regulating the action of the electric control three-way valve 601, a third temperature sensor 203 is arranged on the backwater outlet main pipe 108, the energy station control system 12 is electrically connected with the first temperature sensor 201, the first pressure sensor 301, the first electric control regulating valve 501, the first flow sensor 401, the fourth temperature sensor 204, the circulating pump 2 and the second pressure sensor 302, and the indoor operation control system 34 is electrically connected with the second electric control regulating valve 502, the second temperature sensor 202, the electric control three-way valve 601, the third electric control regulating valve 503 and the third temperature sensor 203. The first temperature sensor 201, the first pressure sensor 301, the first electronically controlled regulator 501, the first flow sensor 401, the second temperature sensor 202, and the second pressure sensor 302 send monitoring signals to the energy station control system 12 in real time, and the second temperature sensor 202 and the third temperature sensor 203 send monitoring signals to the indoor operation control system 34 in real time.
The invention also provides an operation control method of the residential district radiation heating and cooling system, which comprises the following steps:
S1, starting an energy station control system 12, wherein the energy station control system 12 automatically starts each indoor operation control system 34; after the energy station control system 12 is started, the heat pump unit 11, the circulating pump 2, the first temperature sensor 201, the first pressure sensor 301, the first electric control regulating valve 501, the first flow sensor 401, the fourth temperature sensor 204 and the second pressure sensor 302 enter working states, and after the indoor operation control system 34 is started, the second electric control regulating valve 502, the second temperature sensor 202, the electric control three-way valve 601, the third electric control regulating valve 503, the third temperature sensor 203, the fifth temperature sensor 205 and the first dew point sensor 35 enter working states.
S2, the energy station control system 12 regulates and controls the opening degree of the first electric control regulating valve 501 in real time according to the water quantity condition of the backwater conveying main pipe 104 so as to realize the normal operation of the heat pump unit 11, meanwhile, the energy station control system 12 compares the set environment temperature values T1 and T2 in the energy station control system with the monitored external environment temperature T3 in real time, the environment temperature values T1 and T2 are set according to the environment temperature in the local historical heating and refrigerating demands, for example, in Shandong areas, the value of T1 can be set to 15 ℃, the temperature value of T2 is set to 30 ℃, when T3 is smaller than T1, the energy station control system 12 and the indoor operation control system 34 enter a heating working mode, and when the energy station control system 12 and the indoor operation control system 34 enter the heating working mode, the second electric control regulating valve 502, the water-cooled dehumidification cabinet 3, the third electric control regulating valve 503, the circulating pump 2 and the first electric control regulating valve 501 are in an opening state, and when T3 is larger than T2, the energy station control system 12 and the indoor operation control system 34 enter the heating working mode;
S2.1, in the process that the energy station control system 12 and the indoor operation control system 34 are in the heating operation mode, the heat pump unit 11 calculates the average value of the temperatures fed back by the fifth temperature sensors 205 according to the indoor temperature standard rate of the user (the indoor temperature standard rate calculating process is that, firstly, the indoor operation control system 12 calculates the average value of the temperatures fed back by the fifth temperature sensors 205, then compares the average value with the set indoor standard temperature, when the average value is greater than the standard temperature, the user is marked as the standard user, the non-standard user is marked on the non-standard user side, the indoor operation control system 34 sends the information of whether the householder meets the standards or not to the energy station control system 12, the energy station control system 12 calculates the heating failure rate in the whole district), the feedback backwater temperature and the outdoor temperature on the backwater conveying main pipe 104 are used for setting the working setting point and performing heating operation, so that the hot water supply of the heat pump unit 11 is realized, and the temperature of the water supply is adjusted in real time according to the indoor temperature failure rate, the feedback backwater temperature and the outdoor temperature on the backwater conveying main pipe 104 so as to meet the heating requirement; in the process of operating the heating, the indoor operation control system 34 adjusts the opening degree of the second electric control regulating valve 502 according to the indoor set temperature, the indoor water temperature (fed back by the second temperature sensor 202), the outdoor water temperature (fed back by the third temperature sensor 203) and the indoor temperature (average value of the temperatures fed back by the fifth temperature sensor 205 in each room) set by the user on the indoor operation control system 34 so as to realize the heating implementation requirement of the user;
S2.2, in the process that the energy station control system 12 and the indoor operation control system 34 are in a refrigerating working mode, the indoor operation control system 34 calculates the difference value between the floor temperature T4 of each room and the dew point value T5 of each room in real time, calculates the average value Y of each difference value, compares the Y value with the critical threshold values C1 and C2 set in the indoor operation control system 34 in real time, (in the refrigeration technical field, when the environment temperature is lower than the dew point value of the environment, the side can generate the dew point phenomenon, when the environment temperature is higher than the dew point value of the environment, the dew point phenomenon can not occur, and the possible risk of dew point is bigger and bigger along with the smaller difference between the environment temperature and the dew point value of the environment, in the invention, the division of the dew point risk of a residential quarter of a district is realized by setting the critical threshold values C1 and C2, the critical threshold values C1 and C2 are determined according to the building structure of the district and the laying condition of a radiation pipeline 111), when Y is larger than C1, the indoor operation control system 34 marks the user as a fine tuning user, and simultaneously, sends information marked user to the fine tuning system as a fine tuning user, and the indoor operation control system is in a state of the indoor operation system, the indoor operation system is in a state of the indoor operation system, and the indoor operation system is in a state of a third-opening state, and a humidity control system is in which is in a state of a system is in a state of a system and is in a state of a system is in a state 3; when C1 is more than or equal to Y is more than or equal to C2, the indoor operation control system 34 marks the user as a medium-adjustment user, meanwhile, information of the marked medium-adjustment user is sent to the energy station control system 12, the user marked as the medium-adjustment user is a resident of the medium-adjustment user, the indoor water-cooling type dehumidification cabinet 31 is in an open state under the control of the indoor operation control system 34 (at the moment, the indoor operation control system 34 regulates and controls the electric control three-way switch valve 601 so that cold water in the water-supply household main pipe 107 enters the water-cooling type dehumidification cabinet 31, the cold water flows out of the water-cooling type dehumidification cabinet 31 and then enters the water separator 32 through the water-supply household main pipe 104), and the third electric control regulating valve 503 on the radiation pipeline 111 in each room is in a full-open state; when Y < C2, the indoor operation control system 34 marks the user as a fully-regulated user, and simultaneously, sends information of the marked fully-regulated user to the energy station control system, the resident marked as the fully-regulated user, under the control of the indoor operation control system 34, the indoor water-cooled dehumidification cabinet 31 is in an open state (at this time, the indoor operation control system 34 regulates and controls the electric control three-way switch valve 601 so that cold water in the water supply house header 107 enters the water-cooled dehumidification cabinet 31, the cold water flows out of the water-cooled dehumidification cabinet 31 and then enters the water separator 32 through the water supply house header 104), and the third electric control regulating valve 503 on the radiation pipeline 111 in each room regulates the opening degree in real time according to the difference value between the floor temperature and the dew point value in the room (when the difference value between the floor temperature and the dew point value is larger, the opening degree of the third electric control regulating valve 503 can be larger, and when the difference value between the floor temperature and the dew point value is smaller, the opening degree of the third electric control regulating valve 503 can be smaller);
S2.2.1, in the running process of each fine tuning user, middle tuning user and full tuning user according to the running mode, the energy station control system calculates the duty ratio A of the number of the full tuning users in the total amount of the fine tuning user, the middle tuning user and the full tuning user, compares the duty ratio A with the duty ratio threshold B (in the specific embodiment, the duty ratio threshold B can be set to be 40%), and when A is less than or equal to B, the energy station control system enables the heat pump unit 11 to enter a non-full tuning region working mode running state; when A is more than B, the energy station control system enables the heat pump unit to enter a full-regulation-area working mode running state; in the operation process of the energy station control system 12 in the non-full-regulation-area working mode or the full-regulation-area working mode, the energy station control system 12 adjusts the operation power of the heat pump unit 11 according to the outdoor temperature and humidity and the return water temperature so as to realize the refrigeration requirement.
Other than the technical features described in the specification, all are known to those skilled in the art.
While the preferred embodiments and examples of the present invention have been described in detail with reference to the accompanying drawings, the present invention is not limited to the embodiments and examples, and it will be apparent to those skilled in the art that various modifications and variations can be made without departing from the spirit of the present invention, and the scope of the invention is also defined by the appended claims.
Claims (2)
1. The operation control method of the radiation heating and cooling system of the residential district is characterized by comprising the radiation heating and cooling system of the residential district, wherein the radiation heating and cooling system comprises an energy station, a circulating pump, a user side and a circulating pipeline, the energy station comprises a plurality of groups of heat pump units and an energy station control system, the user side comprises a water-cooled dehumidification cabinet, a water separator, a water collector, an indoor operation control system, a fifth temperature sensor, a first dew point sensor and a radiation pipeline, the water-cooled dehumidification cabinet is used for indoor temperature control dehumidification of a resident, a plurality of radiation pipelines are arranged between the water separator and the water collector, the radiation pipelines are respectively coiled and distributed in floors of various rooms of the resident, the energy station control system can control the operation of the heat pump units, the indoor operation control system is electrically connected with the fifth temperature sensor, the first dew point sensor and the water-cooled dehumidification cabinet, and the circulating pipeline is used for realizing the circulation of water flow between the radiation stations; an outdoor temperature and humidity sensor is further arranged in the energy station, and the outdoor temperature and humidity sensor is electrically connected with the energy station control system; the circulating pipeline comprises a heat pump water supply collecting pipe, a heat pump water return collecting pipe, a water supply conveying main pipe, a water return conveying main pipe, a household unit water supply pipe, a household unit water return pipe, a water supply household main pipe and a water return household main pipe, wherein the water outlets of a plurality of heat pump units are communicated with the water inlet of the water separator through the connection of the heat pump water supply collecting pipe, the water supply conveying main pipe, the household unit water supply pipe and the water supply household main pipe, the water inlets of a plurality of heat pump units are communicated with the water outlet of the water collector through the connection of the heat pump water return collecting pipe, the water return conveying main pipe, the household unit water return pipe and the water return household main pipe, a first temperature sensor and a first pressure sensor are arranged on the water supply conveying main pipe, a second pressure sensor, a fourth temperature sensor and a first flow sensor are arranged on the water return conveying main pipe, the circulating pump is connected in series to the backwater conveying main pipe, a first electric control regulating valve is connected in series between the water supply conveying main pipe and the backwater conveying main pipe, a second electric control regulating valve and a second temperature sensor are arranged on the water supply main pipe, a third electric control regulating valve is connected in series to each radiation pipeline, the third electric control regulating valve is adjacent to the water separator, the water-cooled dehumidification cabinet is connected in parallel to one side of the water supply main pipe through a dehumidification cabinet water inlet pipe and a dehumidification cabinet water outlet pipe, the water inlet end of the dehumidification cabinet water inlet pipe is communicated with an electric control three-way valve arranged on the water supply main pipe, a third temperature sensor is arranged on the backwater main pipe, the energy station control system is connected with the first temperature sensor, the first pressure sensor, the first electric control regulating valve, the first flow sensor, the fourth temperature sensor, the circulating pump is electrically connected with the second pressure sensor, and the indoor operation control system is electrically connected with the second electric control regulating valve, the second temperature sensor, the electric control three-way valve, the third electric control regulating valve and the third temperature sensor; the operation control method further comprises the following steps:
S1, starting an energy station control system, wherein the energy station control system automatically starts all indoor operation control systems;
S2, the energy station control system regulates and controls the opening degree of the first electric control regulating valve in real time according to the water quantity condition of the backwater conveying main pipe so as to realize the normal operation of the heat pump unit, meanwhile, the energy station control system compares the set environment temperature values T1 and T2 in the heat pump unit with the monitored external environment temperature T3 in real time, when T3 is smaller than T1, the energy station control system and the indoor operation control system enter a heating working mode, and when T3 is larger than T2, the energy station control system and the indoor operation control system enter a refrigerating working mode;
S2.1, in the process that the energy station control system and the indoor operation control system are in a heating operation mode, the heat pump unit sets an operation set point and operates to heat according to the indoor temperature standard reaching rate of a user, the feedback backwater temperature on the backwater conveying main pipe and the outdoor temperature, so that hot water supply of the heat pump unit is realized; in the process of heating operation, the indoor operation control system adjusts the opening degree of the second electric control regulating valve according to the indoor set temperature, the indoor water temperature, the outdoor water temperature and the indoor temperature set by a user on the indoor operation control system so as to realize the heating implementation requirement of the user;
S2.2, in the process that the energy station control system and the indoor operation control system are in a refrigerating working mode, each indoor operation control system calculates the difference value between the floor temperature T4 of each room and the dew point value T5 of each room in real time, calculates the average value Y of each difference value, compares the Y value with critical threshold values C1 and C2 set in the indoor operation control system in real time, and marks the user as a fine adjustment user when Y is more than C1, and simultaneously, sends information for marking the fine adjustment user to the energy station control system, and is marked as a resident of the fine adjustment user; when C1 is more than or equal to Y is more than or equal to C2, the indoor operation control system marks the user as a medium-adjustment user, and simultaneously, sends information of the marked medium-adjustment user to the energy station control system, and the user marked as the medium-adjustment user is a resident of the medium-adjustment user, wherein the indoor water-cooling type dehumidification cabinet is in an open state under the control of the indoor operation control system, and a third electric control regulating valve on a radiation pipeline in each room is in a full-open state; when Y is less than C2, the indoor operation control system marks the user as a full-adjustment user, and simultaneously, sends information of the marked full-adjustment user to the energy station control system, and a resident marked as the full-adjustment user, under the control of the indoor operation control system, the indoor water-cooling type dehumidification cabinet is in an open state, and a third electric control regulating valve on a radiation pipeline in each room regulates the opening degree in real time according to the difference value between the floor temperature and the dew point value in the room;
S2.2.1, in the running process of each fine tuning user, middle tuning user and full tuning user according to the running modes, the energy station control system calculates the duty ratio A of the number of the full tuning users in the total amount of the fine tuning user, the middle tuning user and the full tuning user, compares the duty ratio A with the duty ratio threshold B set in the system, and when A is less than or equal to B, the energy station control system enables the heat pump unit to enter a non-full tuning area working mode running state; when A is more than B, the energy station control system enables the heat pump unit to enter a full-regulation-area working mode running state.
2. The method for controlling the operation of a radiant heating and cooling system in a residential area according to claim 1, wherein each heat pump host in the heat pump unit is a screw type air-cooled air heat source pump.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000274785A (en) * | 1999-03-19 | 2000-10-06 | Ntt Power & Building Facilities Inc | Air conditioning system |
| KR101866799B1 (en) * | 2017-05-10 | 2018-07-24 | 주식회사 한 에너지 시스템 | Method for controlling heating with temperature controller for each room and ditial direct controller in machine room of each household of group heat supply facility |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20010096533A (en) * | 2000-03-30 | 2001-11-07 | 이승수 | cooling and heating system using jointly the radient with convection |
| KR101307385B1 (en) * | 2012-07-27 | 2013-09-11 | 주식회사 경동나비엔 | Method for controlling integrated operation of complex cooling and heating air conditioner |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000274785A (en) * | 1999-03-19 | 2000-10-06 | Ntt Power & Building Facilities Inc | Air conditioning system |
| KR101866799B1 (en) * | 2017-05-10 | 2018-07-24 | 주식회사 한 에너지 시스템 | Method for controlling heating with temperature controller for each room and ditial direct controller in machine room of each household of group heat supply facility |
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