CN111947264A - Residential community radiation heating and cooling system and operation control method - Google Patents
Residential community radiation heating and cooling system and operation control method Download PDFInfo
- Publication number
- CN111947264A CN111947264A CN202010976854.9A CN202010976854A CN111947264A CN 111947264 A CN111947264 A CN 111947264A CN 202010976854 A CN202010976854 A CN 202010976854A CN 111947264 A CN111947264 A CN 111947264A
- Authority
- CN
- China
- Prior art keywords
- water
- control system
- user
- energy station
- temperature
- 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
Images
Classifications
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Abstract
The invention provides a residential district radiant heating and cooling system and an operation control method thereof. The radiant heating and cooling system can meet the heating and cooling requirements of a community, improves the utilization rate of the heat pump unit, and can greatly reduce the floor condensation problem in the cooling stage by using the operation control method provided by the invention, thereby ensuring the cooling requirement supply of users.
Description
Technical Field
The invention relates to a radiant heating and cooling system for a residential district and an operation control method.
Background
At present, a heat pump unit can realize the dual purposes of a floor heating air conditioner, the heat pump unit is used as a cold source of the air conditioner in summer and used as a heat source of floor heating in winter, and the requirements of cooling in summer and heating in winter are met by one set of equipment. The floor radiation heating system has the advantages of good indoor temperature uniformity, good comfort, small temperature gradient, accordance with the physiological requirements of human bodies, no influence on indoor use area and the like, and is widely applied to heating systems. The floor radiation cooling system is not widely applied at present, the key of the problem is the dewing problem of the floor cooling system in summer, and when the surface temperature is lower than the indoor dew point temperature, the surface dewing phenomenon can be generated.
For a traditional radiation cooling air conditioner cooling system, the condensation of the floor is technically feasible by independently controlling the cooling temperature of the floor, but the condensation risk is increased along with the reduction of the indoor temperature, so that the indoor cooling effect is limited. The floor condensation and cooling effects are inevitably influenced by uncontrollable factors such as high-temperature and high-humidity humid weather and opening of a window and a door by a user. How to effectively ensure the cooling effect and solve the problem of condensation is one of the key problems faced by the radiation cooling air-conditioning system.
Disclosure of Invention
The invention aims to provide a residential district radiant heating and cooling system and an operation control method, the residential district radiant heating and cooling system can meet the requirements of district heating and cooling, the utilization rate of a heat pump unit is improved, and meanwhile, the operation control method provided by the invention can greatly reduce the problem of floor condensation in the cooling stage, thereby ensuring the cooling requirement supply of users.
The technical scheme adopted by the invention for solving the technical problems is as follows: a residential district radiation heating and cooling system comprises an energy station, a circulating pump, a user side and a circulating pipeline, wherein 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 distributor, 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 and dehumidification of residents, a plurality of radiation pipelines are arranged between the water distributor and the water collector and respectively distributed in floors of all rooms of the residents in a coiling manner, a fifth temperature sensor and a first dew point sensor are arranged in all the rooms of the residents, the energy station control system can control the operation of the heat pump units, and 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 water flow circulation between the energy station and each radiation pipeline.
Preferably, an outdoor temperature and humidity sensor is further arranged in the energy station and electrically connected with the energy station control system.
Furthermore, 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 service main pipe and a water return service main pipe, the water outlets of a plurality of heat pump units are communicated with the water inlet of the water segregator 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 service main pipe, the water inlets of the plurality of heat pump units are communicated with the water outlet of the water segregator 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 service 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 service conveying, the circulating pump is connected in series on the return water conveying header pipe, a first electric control regulating valve is connected in series between the water supply conveying header pipe and the return water conveying header pipe, a second electric control regulating valve and a second temperature sensor are arranged on the water supply house-entering header pipe, a third electric control regulating valve is connected in series on each radiant tube, the third electric control regulating valve is adjacent to the water separator, the water-cooled dehumidification cabinet is connected to one side of the water supply house-entering header pipe in parallel through the dehumidification cabinet water inlet pipe and the 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 house-entering header pipe, a third temperature sensor is arranged on the return water house-exiting header pipe, the energy station control system is connected with the first temperature sensor, the first pressure sensor, the first electric control valve, the first flow sensor, the fourth temperature 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.
Furthermore, all the heat pump main machines in the heat pump unit are screw type air-cooled air heat source pumps.
The invention also provides an operation control method of the residential district radiant heating and cooling system, which comprises the following steps:
s1, starting the energy station control system, and automatically starting each indoor operation control system by the energy station control system;
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 a backwater conveying main pipe so as to realize normal operation of the heat pump unit, meanwhile, the energy station control system compares the set environmental temperature values T1 and T2 in the energy station control system with the monitored external environmental temperature T3 in real time, when T3 is less than T1, the energy station control system and the indoor operation control system enter a heating working mode, and when T3 is more than T2, the energy station control system and the indoor operation control system enter a cooling working mode;
s2.1, in the operation process that the energy station control system and the indoor operation control system are in a heating operation mode, the heat pump unit sets a working set point according to the indoor temperature standard reaching rate of a user, the return water temperature fed back from the return water conveying main pipe and the outdoor temperature and operates to heat, and therefore hot water supply of the heat pump unit is achieved; in the operation heating process of the indoor operation control system, the opening degree of the second electric control regulating valve is regulated according to the indoor set temperature, the indoor water temperature, the outdoor water temperature and the indoor temperature set by the user on the indoor operation control system, so that the implementation heating requirement of the user is realized;
s2.2, in the process that the energy station control system and the indoor operation control system are in the operation mode of refrigeration, 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, when Y is larger than C1, the indoor operation control system marks the user as a fine adjustment user, simultaneously sends the information of the marked fine adjustment user to the energy station control system, the user marked as a fine adjustment user is controlled by the indoor operation control system, the internal water-cooled dehumidification cabinet is in a closed state, and the third electric control regulating valve on the radiation pipeline in each room is in a full-open state; when Y is more than or equal to C1 and more than or equal to C2, the indoor operation control system marks the user as a middle-call user, meanwhile, information of the user marked as the middle-call user is sent to the energy station control system, the user marked as the middle-call user is controlled by the indoor operation control system, the internal water-cooled dehumidification cabinet is in an open state, and the third electric control regulating valve on the 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 the information marking the full-adjustment user to the energy station control system, the household marked as the full-adjustment user is controlled by the indoor operation control system, the internal water-cooled dehumidification cabinet is in an open state, and the opening degree of the third electric control regulating valve on the radiation pipeline in each room is regulated 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 process that each fine tuning user, middle tuning user and full tuning user operate according to their operation modes, the energy station control system calculates the ratio A of the number of full tuning users in the total number of the fine tuning users, middle tuning users and full tuning users, and compares the ratio A with the ratio threshold value B set in the system, when A is less than or equal to B, the energy station control system makes the heat pump set enter into the operation state of the non-full tuning area working mode; and when A is larger than B, the energy station control system enables the heat pump unit to enter a full-adjustment-area working mode operation state.
The invention has the beneficial effects that: the air source heat pump is used as a heat source and a cold source for cooling and heating the floor in the community, so that the utilization rate of equipment and a pipe network is improved, and the investment cost is reduced; the indoor operation control system, the dew point collector, the dehumidification cabinet machine and other equipment are arranged indoors, the indoor temperature and humidity control effect is improved, by utilizing the operation control method provided by the invention, in a refrigeration working mode, a user side is divided into a fine adjustment user, a middle adjustment user and a full adjustment user, the indoor operation control system can accurately regulate and control the refrigeration effect according to the refrigeration type of the user, in the process of accurately regulating and controlling the indoor refrigeration operation by the indoor operation control system, the energy station can switch between a non-full adjustment region working mode and a full adjustment region working mode in real time according to the proportion of the full adjustment user to the total amount of the user, then support is provided for the indoor operation control system to regulate and control the indoor refrigeration operation, the problem of frosting of an indoor refrigeration floor can be effectively solved, and then the refrigeration operation cost of a residential area is also reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are part of the preferred embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a block diagram of the overall structure of the present invention;
FIG. 2 is a flow chart of the operational logic of the present invention;
FIG. 3 is a flow chart of the operational logic for the cooling mode of operation of the present invention;
in the figure: 1 energy station, 11 heat pump units, 12 energy station control systems, 13 outdoor temperature and humidity sensors, 2 circulating pumps, 3 user terminals, 31 water-cooled dehumidification cabinets, 32 water separators, 33 water collectors, 34 indoor operation control systems, 35 dew point sensors, 101 heat pump water supply headers, 102 heat pump water return headers, 103 water supply delivery manifolds, 104 water return delivery manifolds, 105 household unit water supply pipes and 106 household unit water return pipes, the system comprises a 107 water supply house-entering header pipe, a 108 water return house-exiting header 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 in the embodiments of the present invention will be described clearly and completely with reference to the specific embodiments and accompanying drawings 1-3, and it is obvious that the described embodiments are only a part of the preferred embodiments of the present invention, and not all embodiments. Those skilled in the art can make similar modifications without departing from the spirit of the invention, and therefore the invention is not limited to the specific embodiments disclosed below.
The invention provides a radiant heating and cooling system (as shown in figure 1) for a residential district, 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-cooled air heat source pump; the energy station 1 supplies heat and cold for a community, and is finally embodied in each user room, the user end 3 of the invention is a single household in the existing residential community, the user end 3 comprises a water-cooled dehumidification cabinet 31, a water separator 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 controlling temperature and dehumidifying in the household, a plurality of radiation pipelines 111 are arranged between the water separator 32 and the water collector 33, the plurality of radiation pipelines 111 are respectively coiled and distributed in the floor of each room of the household, each room of the household realizes heating or cooling through the corresponding radiation pipeline 111 in the floor, the fifth temperature sensor 205 and the first dew point sensor 35 are arranged in each room of the household, the fifth temperature sensor 205 is used for monitoring the temperature change in the corresponding room in real time, the first dew point sensor 35 is used for monitoring dew point values in corresponding rooms in real time, the energy station control system 12 can control the operation of the heat pump unit 11, the indoor operation control system 34 is electrically connected with the fifth temperature sensor 205, the first dew point sensor 35 and the water-cooled dehumidification cabinet 3, the circulation pipeline is used for realizing water circulation between the energy station and each radiation pipeline 111, and then the radiation pipeline 111 is used for continuously heating or cooling each room in a household.
In this embodiment, in order to facilitate the energy station 1 to adjust and control the working condition with reference to the outdoor temperature and the outdoor humidity so as to meet the heating or cooling requirement to the maximum 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 to 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 as follows: the circulating 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 house-entering main pipe 107 and a water return house-exiting main pipe 108, the water outlets of a plurality of heat pump units 11 are communicated with the water inlet 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 house-entering main pipe 107, so that the heat pump units 11 supply water into the water separator 32, the water inlets of the heat pump units 11 are communicated with the water outlet 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 water supply house unit water return pipe 106 and the water return house-exiting main pipe 108, so that water in the water collector, a first temperature sensor 201 and a first pressure sensor 301 are arranged on the water supply delivery main pipe 103, 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 return water delivery main pipe 104, the second pressure sensor 302 is used for monitoring the return water pressure in real time, the fourth temperature sensor 204 is used for monitoring the return water temperature in real time, the first flow sensor 401 is used for monitoring the return water flow in real time, the circulating pump 2 is connected in series with the return water delivery main pipe 104, the circulating flow of the water between the energy station 1 and the user end 3 is realized through the operation of the circulating pump 2, a first electric control valve 501 is connected in series between the water supply delivery main pipe 103 and the return water delivery main pipe 104, and the opening of the first electric control valve, the flow adjustment on the backwater conveying main pipe 104 is realized so as to meet the flow requirement of the heat pump work, the water supply house-entering main pipe 107 is provided with a second electric control regulating valve 502 and a second temperature sensor 202, each radiation pipeline 111 is connected with a third electric control regulating valve 503 in series, the third electric control regulating valve 503 is adjacent to the water separator 32, the water-cooled dehumidification cabinet 31 is connected with one side of the water supply house-entering 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 house-entering main pipe 107, the cold source water on-off of the water-cooled dehumidification cabinet 31 can be realized by regulating and controlling the electric control three-way valve 601, the third temperature sensor 203 is arranged on the backwater house-exiting main pipe 108, and the energy station control system 12 is connected with the first temperature sensor, The first pressure sensor 301, the first electrically controlled regulating valve 501, the first flow sensor 401, the fourth temperature sensor 204, the circulating pump 2 and the second pressure sensor 302 are electrically connected, and the indoor operation control system 34 is electrically connected with the second electrically controlled regulating valve 502, the second temperature sensor 202, the electrically controlled three-way valve 601, the third electrically controlled regulating valve 503 and the third temperature sensor 203. The first temperature sensor 201, the first pressure sensor 301, the first electrically controlled regulating valve 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 radiant heating and cooling system, which comprises the following steps:
s1, starting the 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 circulation pump 2, the first temperature sensor 201, the first pressure sensor 301, the first electrically controlled regulating valve 501, the first flow sensor 401, the fourth temperature sensor 204 and the second pressure sensor 302 enter a working state, and after the indoor operation control system 34 is started, the second electrically controlled regulating valve 502, the second temperature sensor 202, the electrically controlled three-way valve 601, the third electrically controlled regulating valve 503, the third temperature sensor 203, the fifth temperature sensor 205 and the first dew point sensor 35 enter a working state.
S2, the energy station control system 12 adjusts and controls the opening degree of the first electric control adjusting 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 environmental temperature values T1 and T2 with the monitored external environmental temperature T3 to set the environmental temperature values T1 and T2, and sets the environmental temperature values according to the environmental temperature when the local historical heating and refrigerating demands exist, for example, in the Shandong area, the value of T1 can be set to 15 ℃, the temperature value of T2 is set to 30 ℃, when T3 is less than T1, the energy station control system 12 and the indoor operation control system 34 enter a heating operation mode, when the energy station control system 12 and the indoor operation control system 34 enter the heating operation mode, the second electric control adjusting valve 502, the water-cooled dehumidification cabinet 3, the third electric control adjusting valve 503, the circulating pump 2 and the first electric control adjusting valve 501 are in an opening state, when T3 > T2, the energy station control system 12 and the indoor operation control system 34 enter the cooling mode of operation;
s2.1, in the operation process of the energy station control system 12 and the indoor operation control system 34 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 standard-reaching rate of the indoor temperature of the user (the calculation process of the standard-reaching rate of the indoor temperature 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-reaching temperature, when the average value is larger than the standard-reaching temperature, the user is marked as a standard-reaching user, whether the side is marked as a non-standard user, the indoor operation control system 34 sends the standard-reaching and non-standard-reaching information of the resident to the energy station control system 12, the energy station control system 12 calculates the non-standard rate of the heating in the whole cell), the return water temperature fed back on the return water conveying main pipe 104 and the, the temperature of the supplied water is adjusted in real time according to the indoor temperature standard reaching rate, the return water temperature fed back from the return water conveying main pipe 104 and the outdoor temperature so as to meet the heating requirement; during the heating operation, the indoor operation control system 34 adjusts the opening degree of the second electrically-controlled 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 (the average value of the temperatures fed back by the fifth temperature sensors 205 in the rooms) set by the user on the indoor operation control system 34, so as to realize the heating implementation demand of the user;
s2.2, in the process that the energy station control system 12 and the indoor operation control system 34 are in the operation of the cooling working mode, each 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, and 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 cooling technical field, when the environment temperature is lower than the dew point value of the environment, the dew condensation phenomenon occurs on the side, when the environment temperature is higher than the dew point value of the environment, the possible risk of the dew condensation is increased along with the decrease of the environment temperature and the dew point value of the environment, in the invention, the dividing of the dew condensation risk of residents in a small area is realized by setting the critical threshold values C1 and C2, the critical threshold values C1 and C2 are determined according to the laying structure of the small area and the radiation pipeline 111), when Y > C1, the indoor operation control system 34 marks the user as a fine-tuning user, and at the same time, sends information of the marked fine-tuning user to the energy station control system 12, the household marked as the fine-tuning user, whose inside water-cooled dehumidification cabinet 3 is in a closed state and the third electrically controlled regulating valve 503 on the radiation pipe 111 in each room is in a fully opened state under the control of the indoor operation control system 34; when Y is more than or equal to C1 and more than or equal to C2, the indoor operation control system 34 marks the user as a middle-call user, and simultaneously sends the information of the user marked as the middle-call user to the energy station control system 12, and the user is marked as a resident of the middle-call user, under the control of the indoor operation control system 34, the internal water-cooled dehumidification cabinet 31 is in an open state (at this time, the indoor operation control system 34 regulates and controls the electric-controlled three-way switch valve 601, so that cold water in the water supply house inlet header pipe 107 enters the water-cooled dehumidification cabinet 31, and after flowing out from the water-cooled dehumidification cabinet 31, the cold water enters the water separator 32 through the water supply house inlet header pipe 104), and the third electric-controlled regulating valve 503 on the radiation pipeline 111 in each room is in a full-; when Y is less than C2, the indoor operation control system 34 marks the user as a full adjustment user, and at the same time, sends information marking the full adjustment user to the energy station control system, and the household marked as the full adjustment user is controlled by the indoor operation control system 34, and the internal water-cooled dehumidification cabinet 31 is in an open state (at this time, the indoor operation control system 34 adjusts and controls the electrically controlled three-way switch valve 601, so that the cold water in the water-cooled dehumidification cabinet 31 enters the room main pipe 107, and the cold water flows out of the water-cooled dehumidification cabinet 31, and then enters the water separator 32 through the water inlet main pipe 104), and the opening degree of the third electrically controlled adjustment valve 503 on the radiation pipeline 111 in each room is adjusted in real time according to the difference between the room floor temperature and the dew point value (when the difference between the floor temperature and the dew point value is large, the opening degree of the third electrically controlled adjustment valve 503 can be large, and when the difference between the floor temperature and the dew point value is small, the opening degree of the third electronically controlled regulating valve 503 may be smaller);
s2.2.1, in the process that each fine tuning user, middle tuning user and full tuning user operate according to their respective operation modes, the energy station control system calculates the ratio A of the number of full tuning users in the total amount of the fine tuning users, the middle tuning users and the full tuning users, and compares the ratio A with the ratio threshold B set in the system (in this specific embodiment, the ratio threshold B can be set to 40%), when A is less than or equal to B, the energy station control system makes the heat pump set 11 enter the non-full tuning region operation mode operation state; when A is larger than B, the energy station control system enables the heat pump unit to enter a full-adjustment-area working mode operation 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 outdoor temperature and humidity and return water temperature so as to meet the refrigeration requirement.
In addition to the technical features described in the specification, the technology is known to those skilled in the art.
While the preferred embodiments and examples of the present invention have been described in detail, it will be apparent to those skilled in the art that the invention is not limited thereto, and that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (5)
1. A residential district radiation heating and cooling system is characterized by comprising an energy station, a circulating pump, a user side and a circulating pipeline, wherein 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 distributor, 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 and dehumidification of residents, a plurality of radiation pipelines are arranged between the water distributor and the water collector and respectively distributed in floors of all rooms of the residents in a winding manner, the fifth temperature sensor and the first dew point sensor are arranged in all the rooms of the residents, the energy station control system can control the operation of the heat pump units, and 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 water flow circulation between the energy station and each radiation pipeline.
2. The system of claim 1, further comprising an outdoor temperature and humidity sensor electrically connected to the energy station control system.
3. The radiant heating and cooling system for residential quarters according to claim 2, characterized in that said circulation pipeline comprises a heat pump water supply header, a heat pump water return header, a water supply delivery header, a water return delivery header, a household unit water supply pipe, a household unit water return pipe, a water service entrance header, and a water return exit header, wherein water outlets of a plurality of said heat pump units are communicated with water inlets of said water separator by the connection of said heat pump water supply header, said water supply delivery header, said household unit water supply pipe, and said water service entrance header, water inlets of a plurality of said heat pump units are communicated with water outlets of said water collector by the connection of said heat pump water return header, said water return delivery header, said household unit water return pipe, and said water return exit header, wherein said water supply delivery header is provided with a first temperature sensor and a first pressure sensor, said water return delivery header is provided with a second pressure sensor, A fourth temperature sensor and a first flow sensor, the circulating pump is connected in series on the return water conveying main pipe, a first electric control regulating valve is connected in series between the water supply conveying main pipe and the return water conveying main pipe, a second electric control regulating valve and a second temperature sensor are arranged on the water supply house-entering main pipe, a third electric control regulating valve is connected in series on each radiant tube, the third electric control regulating valve is adjacent to the water separator, the water-cooled dehumidification cabinet is connected in parallel on one side of the water supply house-entering main pipe through a dehumidification cabinet water inlet pipe and a dehumidification cabinet water outlet pipe, a water inlet end of the dehumidification cabinet water inlet pipe is communicated with an electric control three-way valve arranged on the water supply house-entering main pipe, a third temperature sensor is arranged on the return water house-exiting main pipe, and the energy station control system is connected with the first temperature sensor, the first pressure sensor, the first electric control regulating valve, 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.
4. The system of claim 3, wherein each of the heat pump units is a screw air-cooled air heat source pump.
5. A method of controlling the operation of a radiant heating and cooling system for a residential district according to claim 3 or 4, comprising the steps of:
s1, starting the energy station control system, and automatically starting each indoor operation control system by the energy station control system;
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 a backwater conveying main pipe so as to realize normal operation of the heat pump unit, meanwhile, the energy station control system compares the set environmental temperature values T1 and T2 in the energy station control system with the monitored external environmental temperature T3 in real time, when T3 is less than T1, the energy station control system and the indoor operation control system enter a heating working mode, and when T3 is more than T2, the energy station control system and the indoor operation control system enter a cooling working mode;
s2.1, in the operation process that the energy station control system and the indoor operation control system are in a heating operation mode, the heat pump unit sets a working set point according to the indoor temperature standard reaching rate of a user, the return water temperature fed back from the return water conveying main pipe and the outdoor temperature and operates to heat, and therefore hot water supply of the heat pump unit is achieved; in the operation heating process of the indoor operation control system, the opening degree of the second electric control regulating valve is regulated according to the indoor set temperature, the indoor water temperature, the outdoor water temperature and the indoor temperature set by the user on the indoor operation control system, so that the implementation heating requirement of the user is realized;
s2.2, in the process that the energy station control system and the indoor operation control system are in the operation mode of refrigeration, 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, when Y is larger than C1, the indoor operation control system marks the user as a fine adjustment user, simultaneously sends the information of the marked fine adjustment user to the energy station control system, the user marked as a fine adjustment user is controlled by the indoor operation control system, the internal water-cooled dehumidification cabinet is in a closed state, and the third electric control regulating valve on the radiation pipeline in each room is in a full-open state; when Y is more than or equal to C1 and more than or equal to C2, the indoor operation control system marks the user as a middle-call user, meanwhile, information of the user marked as the middle-call user is sent to the energy station control system, the user marked as the middle-call user is controlled by the indoor operation control system, the internal water-cooled dehumidification cabinet is in an open state, and the third electric control regulating valve on the 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 the information marking the full-adjustment user to the energy station control system, the household marked as the full-adjustment user is controlled by the indoor operation control system, the internal water-cooled dehumidification cabinet is in an open state, and the opening degree of the third electric control regulating valve on the radiation pipeline in each room is regulated 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 process that each fine tuning user, middle tuning user and full tuning user operate according to their operation modes, the energy station control system calculates the ratio A of the number of full tuning users in the total number of the fine tuning users, middle tuning users and full tuning users, and compares the ratio A with the ratio threshold value B set in the system, when A is less than or equal to B, the energy station control system makes the heat pump set enter into the operation state of the non-full tuning area working mode; and when A is larger than B, the energy station control system enables the heat pump unit to enter a full-adjustment-area working mode operation state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010976854.9A CN111947264A (en) | 2020-09-17 | 2020-09-17 | Residential community radiation heating and cooling system and operation control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010976854.9A CN111947264A (en) | 2020-09-17 | 2020-09-17 | Residential community radiation heating and cooling system and operation control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111947264A true CN111947264A (en) | 2020-11-17 |
Family
ID=73357496
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010976854.9A Pending CN111947264A (en) | 2020-09-17 | 2020-09-17 | Residential community radiation heating and cooling system and operation control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111947264A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628900A (en) * | 2021-01-21 | 2021-04-09 | 中国建筑西北设计研究院有限公司 | Regional cooling system based on partitioned energy source station |
-
2020
- 2020-09-17 CN CN202010976854.9A patent/CN111947264A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112628900A (en) * | 2021-01-21 | 2021-04-09 | 中国建筑西北设计研究院有限公司 | Regional cooling system based on partitioned energy source station |
| CN112628900B (en) * | 2021-01-21 | 2022-02-22 | 中国建筑西北设计研究院有限公司 | Regional cooling system based on partitioned energy source station |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103940061A (en) | Energy-saving air conditioning system | |
| CN111664563B (en) | Temperature and humidity separately-controlled centralized air conditioning system | |
| CN210320428U (en) | Energy-saving intelligent control system combining central air conditioner and central heating | |
| CN109556249B (en) | One-driven-multiple air conditioner and air outlet temperature adjusting method of indoor end device of air conditioner | |
| CN203837202U (en) | Energy-efficient air conditioner system | |
| CN110608495A (en) | Multi-adjustment-mode integrated air conditioning system and working method thereof | |
| CN104697085A (en) | Household combination type radiant air conditioning system, control method and corresponding control system | |
| BG61409B1 (en) | Airconditioning unit for residential premises | |
| CN108626836B (en) | Independent fresh air handling unit with air energy heat pump heat recovery and humidification functions | |
| US20220341624A1 (en) | Method for anti-condensation at air conditioner radiation terminal and radiation terminals in multi-room space | |
| CN205425171U (en) | Fan coil temperature control device based on air return temperature and delivered air quantity control water valve aperture | |
| CN111947264A (en) | Residential community radiation heating and cooling system and operation control method | |
| CN203704192U (en) | Air conditioning water system of hospital building | |
| CN113483395A (en) | Low-energy-consumption residential environment control all-in-one machine and control method thereof | |
| CN112665102A (en) | Fan coil control method based on cold quantity calculation | |
| CN212481559U (en) | Radiant heating and cooling system for residential district | |
| CN111623494B (en) | Temperature and humidity separately-controlled air conditioning system | |
| CN213810866U (en) | Anti-condensation system for radiation tail end of air conditioner | |
| CN115654617A (en) | Residential fifth-constant method based on central heating | |
| CN210463336U (en) | Temperature-adjusting dehumidifying air-conditioning system for hydropower station | |
| CN211854137U (en) | Household radiation cooling and heating system combined with municipal heat source | |
| CN106839227A (en) | A kind of semi-central air conditioning of independent temperature-humidity control | |
| CN111397031A (en) | Radiation cooling and heating air conditioning system for apartment | |
| CN211084266U (en) | Air conditioning system of modularization integrated form heat exchanger | |
| CN206669941U (en) | A kind of semi-central air conditioning of independent temperature-humidity control |
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 |