CN113915668B - Intelligent heating system and control method thereof - Google Patents
Intelligent heating system and control method thereof Download PDFInfo
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- CN113915668B CN113915668B CN202111193725.3A CN202111193725A CN113915668B CN 113915668 B CN113915668 B CN 113915668B CN 202111193725 A CN202111193725 A CN 202111193725A CN 113915668 B CN113915668 B CN 113915668B
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Classifications
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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
- F24D3/00—Hot-water central heating systems
- F24D3/18—Hot-water central heating systems using heat pumps
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
-
- 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
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1015—Arrangement or mounting of control or safety devices for water heating systems for central heating using a valve or valves
-
- 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
- F24D19/1009—Arrangement or mounting of control or safety devices for water heating systems for central heating
- F24D19/1039—Arrangement or mounting of control or safety devices for water heating systems for central heating the system uses a heat pump
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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
- F24D19/1051—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water
- F24D19/1063—Arrangement or mounting of control or safety devices for water heating systems for domestic hot water counting of energy consumption
-
- 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
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
- F24D2200/126—Absorption type heat pumps
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Combustion & Propulsion (AREA)
- Thermal Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Water Supply & Treatment (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Air Conditioning Control Device (AREA)
- Steam Or Hot-Water Central Heating Systems (AREA)
Abstract
The invention provides an intelligent heating system and a control method of the intelligent heating system, wherein the intelligent heating system comprises: the system comprises a heating power pipe network, an intelligent control platform, a plurality of air source absorption heat pumps and a plurality of hydraulic distribution suites. Each air source absorption heat pump is internally provided with a circulating pump; the heating power pipe network is communicated with a plurality of air source absorption heat pumps to realize circulating heating power supply; the hydraulic distribution suites are respectively and correspondingly arranged on the household pipeline of the user; the intelligent control platform is respectively connected with the plurality of air source absorption heat pumps and the plurality of hydraulic distribution suites in a wired or wireless way; the intelligent control platform is used for carrying out comprehensive monitoring and controlling actions of the plurality of air source absorption heat pumps and/or the plurality of hydraulic distribution suite according to related parameters so as to enable a user to achieve qualified heat supply. The invention can effectively solve the problems of low heat source efficiency, high hydraulic balance difficulty, high operation and maintenance difficulty, large occupied area, high investment, poor adaptability of the occupancy rate and high energy consumption of the existing distributed heat supply system.
Description
Technical Field
The invention relates to the field of heat supply, in particular to an intelligent heat supply system and a control method of the intelligent heat supply system.
Background
The heat supply system generally adopts a distributed central heat supply system, and the heat supply system comprises a heat source system, a heat medium transmission and distribution system and a user heat dissipation system. The operation cost of the heat supply system mainly comprises the cost of fuel and electric energy consumed by the heat source system and the power consumption cost of a circulating pump of the heat medium transmission and distribution system. The heat source efficiency, the heat medium transmission and distribution system efficiency, the balance of heat distribution of a heat dissipation system, the effective treatment of the water quality of a heating water system and the rationality of a heating system operation and maintenance strategy are closely related to the overall operation cost in a heating season. The heat source type of the existing distributed heat supply system is mostly a coal-fired boiler or a gas-fired boiler. The heat medium transmission and distribution mode is to use a variable frequency or fixed frequency water pump to carry out heat medium transmission and flow control of the whole heat supply system through a heat supply pipe network. The thermodynamic equilibrium mode adopts the specification of GB50736 'civil building heating ventilation and air conditioning design Specification', a differential pressure equilibrium valve and a manual static equilibrium valve are arranged at a thermodynamic inlet to carry out flow distribution among buildings, but a hydraulic distribution device is not specified explicitly and forcefully at a household. The whole heating system is manually controlled in water supply/return temperature, system flow, hydraulic balance and system water quality. The existing distributed heating system has the problems of low heat source efficiency, poor adaptability of the occupancy rate, large power consumption of a water pump, serious imbalance of hydraulic distribution, unsatisfactory water quality treatment effect, large operation and maintenance loss, large investment for pump house construction and the like, so that an intelligent heating system and an intelligent heating system control method are needed to be provided to solve the problems.
Disclosure of Invention
In view of the above drawbacks of the prior art, the present invention provides an intelligent heating system and a control method thereof, so as to solve the problems of low heat source efficiency, poor occupancy rate adaptability and high power consumption of a water pump in the existing distributed heating system.
To achieve the above and other related objects, the present invention provides an intelligent heating system comprising: the system comprises a heating power pipe network, an intelligent control platform, a plurality of air source absorption heat pumps and a plurality of hydraulic distribution suites. Each air source absorption heat pump is internally provided with a circulating pump; the heating power pipe network is communicated with the plurality of air source absorption heat pumps so as to realize circulating heating power supply; the hydraulic distribution suites are respectively and correspondingly arranged on the household pipeline of the user; the intelligent control platform is respectively connected with the plurality of air source absorption heat pumps and the plurality of hydraulic distribution suites in a wired or wireless way; the intelligent control platform is used for comprehensively monitoring the air source absorption heat pumps and the hydraulic distribution suite and controlling the air source absorption heat pumps and/or the hydraulic distribution suite to act according to related parameters so as to enable a user to achieve qualified heat supply.
In an example of the intelligent heating system of the present invention, the intelligent control platform includes an ECO intelligent cloud platform, and the ECO intelligent cloud platform monitors the intelligent heating system comprehensively by using one or more of internet of things technology, cloud computing technology, mobile internet computing technology and intelligent monitoring technology.
In one example of the intelligent heating system of the present invention, the intelligent heating system further comprises a water treatment system for performing water quality treatment.
In an example of the intelligent heat supply system, the water treatment system comprises a plurality of water treatment kits, the number of the water treatment kits is matched with that of the air source absorption heat pumps, and the water treatment kits are correspondingly arranged at the joints of the heating power pipe network and the air source absorption heat pumps.
In an example of the intelligent heating system of the present invention, the intelligent control platform is connected with the plurality of water treatment kits in a wired or wireless manner, so as to perform signal acquisition or motion control on the plurality of water treatment kits.
In an example of the intelligent heating system, the water treatment kit comprises a water inlet pipe assembly with water quality treatment and filtering functions, one end of the water inlet pipe assembly is communicated with a liquid return pipeline of the heating power pipe network, and the other end of the water inlet pipe assembly is communicated with a liquid suction port of the air source absorption heat pump.
In an example of the intelligent heating system, the water inlet pipe assembly comprises a water inlet pipe, a water quality treatment part and a filter, wherein two ends of the water inlet pipe are respectively communicated with the liquid return pipeline and the liquid suction port, and the water quality treatment part is arranged between the liquid return pipeline and the liquid suction port; the filter is arranged between the water quality treatment part and the liquid suction port.
In an example of the intelligent heating system of the present invention, the water treatment kit further includes a first valve mounted on the water inlet pipe and located at an end of the water inlet pipe facing away from the liquid suction port.
In an example of the intelligent heating system of the present invention, the water quality treatment section includes an electromagnetic water treatment device.
In an example of the intelligent heating system, the water treatment kit comprises a water outlet pipe assembly with an exhaust function, one end of the water outlet pipe assembly is communicated with a liquid supply pipeline of the heating power pipe network, and the other end of the water outlet pipe assembly is communicated with a liquid outlet of the air source absorption heat pump.
In an example of the intelligent heating system, the water outlet pipe assembly comprises a water outlet pipe and an exhaust device, wherein two ends of the water outlet pipe are respectively communicated with the liquid supply pipeline and the liquid discharge port, and the exhaust device is arranged on the water outlet pipe.
In one example of the intelligent heating system of the present invention, the water outlet pipe assembly further comprises a target flow switch mounted on the water outlet pipe between the exhaust and the liquid supply pipe.
In one example of the intelligent heating system of the present invention, the water outlet pipe assembly further comprises a check valve mounted on the water outlet pipe between the target flow switch and the liquid supply pipe.
In an example of the intelligent heating system of the present invention, the water outlet pipe assembly further includes a freeze valve, and the freeze valve is connected in parallel with the check valve.
In an example of the intelligent heating system, the water outlet pipe assembly further comprises a second valve, and the second valve is installed on the water outlet pipe and is located at one end of the water outlet pipe, which is away from the liquid outlet.
In one example of the intelligent heating system of the present invention, the relevant parameters include parameters fed back by the air source absorption heat pump and the hydraulic distribution kit.
In one example of the intelligent heating system of the present invention, the relevant parameters include relevant weather information.
In an example of the intelligent heating system of the present invention, the air source absorption heat pump is a gas-type air source absorption heat pump.
In an example of the intelligent heating system, the hydraulic distribution kit comprises a valve, a temperature sensor and an electric flow valve, wherein the electric flow valve and the temperature sensor are connected with the intelligent control platform in a wired or wireless way.
The invention also provides a control method of the intelligent heating system, which comprises the following steps:
the intelligent control platform calculates the maximum heat demand of the project heating season according to the occupancy rate determined by the user side and the local heating design parameters;
the intelligent control platform determines the number of the air source absorption heat pumps put into operation according to the maximum heat demand of the project heating season;
the intelligent control platform determines the specific flow of each user at the user end according to the determined number of the input operation of the air source absorption heat pump, and controls the corresponding hydraulic distribution suite according to the specific flow to realize the on-demand distribution of the flow and the automatic hydraulic balance.
In an example of the intelligent heating system control method, the water treatment suite is installed at the side outlet of the heat source to effectively inhibit system scaling, microorganism breeding and corrosion, so that the circulating water system is clean and airless.
In an example of the intelligent heating system control method, the intelligent heating system is monitored by one or more of the internet of things technology, the cloud computing technology, the mobile interconnection technology and the intelligent monitoring technology, so that the intelligent operation of the system is realized.
In an example of the intelligent heating system control method, in the whole heating operation process, local outdoor meteorological parameters are in real time, the temperature of water supply and return required by a heating system in the future is predicted according to the change of heat required by a user, and parameter correction is performed in real time, so that a climate compensation strategy of the whole heating season is realized, and the heating consumption is greatly reduced.
In one example of the intelligent heating system control method of the present invention, the local heating design parameters include a heating design heat load, a heating design outdoor ambient temperature index, and a heating design water temperature.
In an example of the intelligent heating system control method, a user monitors operating parameters of equipment and realizes remote control of user household flow.
In an example of the intelligent heating system control method, a heating power company or a gas company monitors the return water temperature of the user and can realize remote control of the user flow.
According to the intelligent heating system, the intelligent control platform is used for monitoring and controlling the system, so that automation of debugging, operation and maintenance is realized. The intelligent heat supply system adopts the air source absorption heat pump unit, and has high heat source efficiency. The air source absorption heat pump unit is internally provided with the circulating pump, the heat medium transmission and distribution system does not need to occupy extra space, the initial investment of projects is greatly reduced, the change of the input rate can be well adapted, and the pump consumption is greatly reduced; in addition, the intelligent heating system adopts the hydraulic distribution suite at the system entrance side, so that the automatic balance of the hydraulic power of the pipe network is realized.
Furthermore, the intelligent heating system simplifies a complex water treatment system into an independent water quality suite, engineering equipment is realized, pipelines are directly connected in a project construction site, the construction period is shortened, and the investment is greatly reduced.
Furthermore, the intelligent heating system inputs an automatic operation strategy of climate compensation, so that the operation cost in heating seasons is greatly reduced; and the system starts the number of the heat source equipment and the water pump according to the heat required by a user, can effectively treat dirt and gas of the water system, and greatly reduces the operation cost in heating seasons.
Furthermore, the intelligent heating system adopts the hydraulic distribution suite, ensures the hydraulic balance of a pipe network, inputs an automatic control strategy of user flow, distributes the flow according to the needs, avoids the phenomenon of overheat and overcurrent, and greatly reduces the operation cost in heating seasons. The initial investment of the heating system and the running cost of the whole heating season are obviously reduced, the heating requirement of a user is met, and the profit requirement of a heating company is met.
Drawings
In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a diagram showing the connection relationship of the intelligent heating system of the present invention;
FIG. 2 is a schematic diagram of three-dimensional connection of the intelligent heating system according to the present invention;
FIG. 3 is a schematic diagram of a heat source side assembly of the intelligent heating system of the present invention;
FIG. 4 is a three-dimensional model diagram of an air source gas absorption heat pump in the intelligent heating system of the invention;
FIG. 5 is a schematic diagram of a hydraulic distribution kit in an intelligent heating system according to the present invention;
FIG. 6 is a schematic diagram of the water inlet pipe assembly of the intelligent heating system according to the present invention;
FIG. 7 is a schematic diagram of the water outlet pipe assembly of the intelligent heating system according to the present invention;
FIG. 8 is a schematic diagram of the self-operated flow control valve in the intelligent heating system according to the present invention;
FIG. 9 is a flow chart of a control method of the present invention.
Description of element reference numerals
100. A heat source side assembly; 110. an air source gas absorption heat pump; 111. a liquid suction port; 112. a circulation pump; 113. a liquid outlet; 120. a water inlet pipe assembly; 121. a water quality treatment unit; 122. a first filter; 123. a water inlet pipe; 124. a first valve; 125. an electronic water treatment controller; 126. a first flange; 130. a water outlet pipe assembly; 131. an exhaust device; 132. a target flow switch; 133. a check valve; 134. a second valve; 135. an anti-freeze valve; 136. a water outlet pipe; 137. a second flange; 200. a hydraulic distribution kit; 210. an electric flow valve; 211. an electric actuator; 212. a temperature sensor; 213. a valve body; 220. a second filter; 230. a third valve; 240. a fourth valve; 300. a heating power pipe network; 310. a liquid return pipeline; 320. a liquid supply pipe; 400. a user side component.
Detailed Description
Other advantages and effects of the present invention will become apparent to those skilled in the art from the following disclosure, which describes the embodiments of the present invention with reference to specific examples. The invention may be practiced or carried out in other embodiments that depart from the specific details, and the details of the present description may be modified or varied from the spirit and scope of the present invention. It should be noted that the following embodiments and features in the embodiments may be combined with each other without conflict. It is also to be understood that the terminology used in the examples of the invention is for the purpose of describing particular embodiments only, and is not intended to limit the scope of the invention. The test methods in the following examples, in which specific conditions are not noted, are generally conducted under conventional conditions or under conditions recommended by the respective manufacturers.
It should be understood that the terms such as "upper," "lower," "left," "right," "middle," and "a" and the like are used in this specification for descriptive purposes only and not for purposes of limitation, and that the invention may be practiced without materially departing from the novel teachings and without departing from the scope of the invention.
Referring to fig. 1 to 9, the present invention provides an intelligent heating system and a control method thereof, wherein the intelligent heating system monitors and controls the system through an intelligent control platform, thereby realizing automation of debugging and operation and maintenance work, and realizing automatic balance of pipe network hydraulic power by adopting a hydraulic distribution sleeve member at a system service side. The problems of low heat source efficiency, poor occupancy rate adaptability and high power consumption of the water pump of the conventional distributed heat supply system can be effectively solved.
Referring to fig. 1 to 2 and 4, the intelligent heating system includes: a heating power network 300, an intelligent control platform (not shown), a plurality of air source gas absorption heat pumps 110, and a plurality of hydraulic distribution packs 200. Each air source gas absorption heat pump 110 is internally provided with a circulating pump 112, and the circulating pump 112 sucks the heat supply medium from a liquid suction port 111 of the air source gas absorption heat pump 110 and discharges the heat supply medium from a liquid discharge port 113; the heat pipe network 300 is communicated with the plurality of air source gas absorption heat pumps 110 to realize cyclic heat supply, wherein a liquid supply pipeline 320 of the heat pipe network 300 is communicated with a liquid discharge port 113 of the air source gas absorption heat pump 110, and a liquid return pipeline 310 of the heat pipe network 300 is communicated with a liquid suction port 111 of the air source gas absorption heat pump 110; the plurality of hydraulic distribution suites 200 are respectively and correspondingly arranged on a heating power pipeline main pipe of the user side assembly 400, and the intelligent control platform is respectively connected with the plurality of air source gas absorption heat pumps 110 and the plurality of hydraulic distribution suites 200 in a wired or wireless way; the intelligent control platform comprehensively monitors the air source gas absorption heat pumps 110 and the hydraulic distribution suite 200, and controls the air source gas absorption heat pumps 110 and/or the hydraulic distribution suite 200 to act according to the collected relevant parameters so as to enable the user to achieve qualified heat supply.
The intelligent control platform in the present invention may be any suitable intelligent control platform capable of implementing motion control of the air source gas absorption heat pump 110 and the hydraulic distribution suite 200 according to input or relevant parameters acquired by system feedback, and in an example of the intelligent heating system in the present invention, the intelligent control platform includes an ECO intelligent cloud platform, and the ECO intelligent cloud platform comprehensively monitors the intelligent heating system by using any one or more combination of an internet of things technology, a cloud computing technology, mobile interconnection computing technology and an intelligent monitoring technology.
In an example of the intelligent heating system, the air source gas absorption heat pump 110 is connected to the ECO intelligent cloud platform in a 4G mode, so that a user can monitor the operation parameters of the equipment at any time and any place through the WEB end or the APP end, and remote on-off and parameter setting of the equipment can be realized. The ECO intelligent cloud platform is in butt joint with a public professional weather platform such as a Chinese weather network, a weather with wind, an ink mark and the like, achieves API (application program interface) butt joint, acquires the air temperature change of a project in the local future for 24 hours in real time, controls the backwater temperature of equipment in advance and smoothly, and achieves heat supply according to needs.
In one example of the smart heating system of the present invention, hydraulic distribution kit 200 is applied to NB-IOT access to ECO smart cloud platforms. The heating power company or the gas company can monitor the return water temperature of the user at any time and any place through the WEB end or the APP end, and can realize remote opening and closing of the heat utilization user. The hydraulic distribution suite 200 is adopted on the user side to ensure that the flow of each user is stable under different pressure differences. And an automatic temperature control mode is adopted to perform indoor flow calculation and backwater temperature tracking, so that hydraulic automatic balance is realized, and meanwhile, typical indoor temperature acquisition and modeling calculation of house type positions are performed to further finely adjust the opening and flow of individual household valves, so that balanced heat supply is realized.
In an example of the intelligent heat supply system, a water inlet temperature sensor and a water outlet temperature sensor can be further arranged on a water inlet pipeline and a water outlet pipeline of the air source heat pump unit, and an outdoor temperature detection sensor is arranged outdoors, so that the intelligent heat supply system can further realize data acquisition of inlet and outlet temperatures of a heat source side gas heat pump, outdoor environment temperatures and the like, can further collect data of opening degrees, backwater temperatures and the like of a user side inlet valve through a hydraulic distribution sleeve member, further realize alarm acquisition of running states of heat source side equipment, water system abnormality and the like, alarm acquisition of user side inlet backwater temperature abnormality, filter screen blockage and the like, realize historical data record of all running data of the heat source side and the user side, realize real unattended operation, and omit complicated operation and maintenance work such as daily meter reading, zhou Jilu and the like in the current heating industry. Moreover, the ECO intelligent cloud platform collects heat supply basic data of the whole heating season, so that project heating energy consumption analysis is realized, and data support is provided for heat supply reconstruction of the next year. The automatic operation of the heating system avoids the energy consumption of the heating season operation caused by insufficient professional performance of operation and maintenance personnel.
In the intelligent heat supply system, the additionally configured water treatment system or water treatment device can be adopted to treat dirt, impurities and the like in water, and the intelligent heat supply system further comprises a water treatment system for water quality treatment in consideration of the integration of the intelligent heat supply system. In the present invention, the type and the arrangement of the water treatment system are not limited as long as the water quality can be treated, and for example, the water treatment system or the water treatment device can treat the water quality of all the air source gas absorption heat pump 110. Preferably, in an example of the intelligent heat supply system of the present invention, the water treatment system includes a plurality of water treatment kits, the number of the water treatment kits is matched with the plurality of air source gas absorption heat pumps 110, and the plurality of water treatment kits are correspondingly installed at the connection parts of the heating power pipe network 300 and the plurality of air source gas absorption heat pumps 110. The arrangement can not only independently treat the water quality in each air source gas absorption heat pump 110, but also is high in flexibility, and is beneficial to monitoring a plurality of water treatment kits, and the water treatment kits are flexibly regulated and controlled according to the monitoring data. For example, in one example of the intelligent heating system of the present invention, the intelligent control platform is connected to the plurality of water treatment kits in a wired or wireless manner to perform signal acquisition or motion control on the plurality of water treatment kits. The complex water treatment system is simplified into an independent water treatment suite, so that engineering equipment can be realized, pipelines can be directly connected in a project construction site, the construction period is shortened, and the investment is greatly reduced.
Referring to fig. 2 and 6, in an example of the intelligent heating system of the present invention, the water treatment kit includes a water inlet pipe assembly 120 having water quality treatment and filtering functions, one end of the water inlet pipe assembly 120 is connected to a liquid return pipe 310 of the heating power pipe network 300, and the other end of the water inlet pipe assembly 120 is connected to a liquid suction port of the air source gas absorption heat pump 110. In the present invention, the water inlet pipe assembly 120 may be a water pipe structure capable of realizing water quality treatment and filtration, but considering that the softening capacity of the water softening device in GB50736 "civil building heating ventilation and air conditioning design specification" is a related regulation of 5% of the water amount of the system and the treatment capacity of the water replenishing device configured as required in the existing heating system is limited, preferably, in an example of the smart heating system of the present invention, the water inlet pipe assembly 120 includes a water inlet pipe 123, a water quality treatment portion 121 and a first filter 122, one end of the water inlet pipe 123 is communicated with the liquid return pipe 310 of the heat pipe network 300, the other end of the water inlet pipe 123 is communicated with the liquid suction port of the air source absorption heat pump through a first flange 126, and the water quality treatment portion 121 is installed between the liquid return pipe 310 and the liquid suction port; the first filter 122 is installed between the water treatment part 121 and the liquid suction port, and the arrangement method can effectively solve the problems of corrosion of heat source equipment, pipe network and heat dissipation equipment, short service life, high water quality, scaling of the system, reduced heat transfer capacity and the like caused by limited treatment capacity of water supplementing equipment in the existing heating system, and can also effectively solve the problems of failure of each execution valve and the like caused by easy breeding of various algae and bacteria in the existing heating pipe network 300. Meanwhile, the bad water quality treatment effect of the existing heating power pipe network 300 can be reduced, and finally, the increase of the overall gas consumption and electricity consumption in heating season and the secondary investment brought by the maintenance and replacement of the heating power pipe network are caused.
Referring to fig. 2 and 6, in an example of the present invention, the water treatment part 121 includes an electromagnetic water treatment device, the electromagnetic water treatment device is electrically connected to an electronic water treatment controller 125, and the electronic water treatment controller 125 is connected to an intelligent control platform in a wired or wireless manner. The electromagnetic water processor applies high-frequency electromagnetic field to the circulating water of the system, so that the movement direction and speed of ions can be effectively changed, the activity (dissolution force and penetration force) of water is increased, and meanwhile, under the influence of the electromagnetic field, the collision opportunity of calcium ions and carbonate ions is increased, and the formation of new crystal nuclei is accelerated. After the water flow passes through the electromagnetic field, a large number of calcium carbonate microcrystals dispersed in the water flow are formed, the water flow has lighter texture, small density and weaker adhesive capability, and soft scale is formed by suspending in the water or depositing for a long time and is discharged out of the system along with sewage discharge. The high-frequency electromagnetic field can make the bacterial algae cell molecules produce harmful vibration, and can make the cells break so as to make the cells autolyze or die, in addition, it can eliminate the hotbed (rust and scale in pipe network system) in which these microorganisms are grown, and is favorable for sterilizing and killing algae of circulation system. Thus, the water quality is effectively treated, and the overall gas consumption and electricity consumption in heating season are reduced, and the secondary investment caused by maintenance and replacement of a heating pipe network is avoided.
Referring to fig. 2 and 6, it should be further noted that, in the present invention, the first filter 122 is installed at the front side of the liquid suction port 111, and the first filter 122 can entrap and remove almost all paint lumps, large-particle sand grains, and welding slag in the system. The filter has large drift diameter, large filtering area and small water resistance, after liquid enters the filter basket through the main pipe, solid impurity particles are blocked in the filter basket, and clean fluid flows through the filter basket and flows out from the filter outlet. When the cleaning is needed, a drain valve at the lower side of the filter in front of the pump is opened, the fluid is discharged, the sewage is discharged online, and the use and the maintenance are very convenient. Not only saves manpower and material resources, but also avoids the waste of energy sources caused by frequent start and stop of a heating system. It should be noted that the first filter 122 may be any suitable filter structure, and may be obtained by a general commercial means, and the specific structure will not be described in detail herein.
Referring to fig. 2 and 6, in order to facilitate replacement and maintenance of the water inlet pipe 123, the water treatment portion 121 and the first filter 122, in an example of the intelligent heating system according to the present invention, the water treatment kit further includes a first valve 124, and the first valve 124 is mounted on the water inlet pipe 123 and is located at an end of the water inlet pipe 123 facing away from the liquid suction port 111. The first valve 124 may be closed for replacement when the water treatment section 121 and the first filter 122 need to be replaced or serviced.
Referring to fig. 2 and 7, in an example of the intelligent heating system of the present invention, the water treatment kit further includes a water outlet pipe assembly 130 having an exhaust function, one end of the water outlet pipe assembly 130 is connected to the liquid supply pipe 320 of the heating power pipe network 300, and the other end of the water outlet pipe assembly 130 is connected to the liquid outlet 113 of the air source gas absorption heat pump 110. The water outlet pipe assembly 130 comprises a water outlet pipe 136, an exhaust device 131, a target flow switch 132, a check valve 133 and a frost valve 135, one end of the water outlet pipe 136 is communicated with the liquid supply pipeline 320, the other end of the water outlet pipe 136 is communicated with the liquid outlet 113 through a second flange 137, and the exhaust device 131 is mounted on the water outlet pipe 136. The target flow switch 132 is mounted on the outlet pipe 136 between the exhaust 131 and the liquid supply pipe 320. The check valve 133 is mounted on the outlet pipe 136 between the target flow switch 132 and the supply pipe 320. The freeze valve 135 is connected in parallel with the check valve 133. The venting means 131 comprise a micro-bubble processor dedicated to venting micro-bubble gases present in the system, especially where there are the largest number of micro-bubbles at the heat source outlet in the system. The microbubble processor makes the system water run in unsaturated state, so that it can absorb the microbubbles locally existing in the system and then exhaust the microbubbles through the exhaust valve. It should be noted that the microbubble processor may be any suitable bubble removal structure, and may be obtained by general commercial means, and mainly includes three components: a separation net, an automatic exhaust valve and a blow-down valve. The separation net can make the water flow form vortex which is favorable for separating bubbles, solid precipitation, bubbles climb along the separation net and gather at the upper end, the bubbles are removed by the automatic exhaust valve, and the impurities deposited by standing can be manually discharged by the blow-off valve.
Referring to fig. 2 and 7, in order to facilitate replacement and maintenance of the water outlet pipe assembly 130, in an example of the intelligent heating system according to the present invention, the water outlet pipe assembly 130 further includes a second valve 134, and the second valve 134 is mounted on the water outlet pipe 136 and is located at an end of the water outlet pipe 136 facing away from the liquid outlet 113. The second valve 134 may be closed for replacement when replacement or repair of the associated components on the water outlet assembly is required.
Referring to fig. 2, the intelligent control platform in the present invention monitors the air-source gas-fired absorption heat pump 110 and the hydraulic distribution set 200 comprehensively, and controls the air-source gas-fired absorption heat pumps 110 and/or the hydraulic distribution sets 200 to act according to related parameters so as to enable the user to achieve qualified heat supply. The relevant parameters may be parameters actively collected by the intelligent control platform, for example, temperature and flow parameters of the air source gas absorption heat pump 110 actively read by the intelligent control platform, or temperature and flow parameters of corresponding positions of the heating power pipe network 300 actively read, or temperature and flow parameters of the plurality of hydraulic distribution suites 200 actively read, or relevant weather parameters actively read, or parameters passively accepted by the intelligent control platform, for example, temperature and flow parameters actively fed back by the air source gas absorption heat pump 110, or temperature and flow parameters actively fed back by the plurality of hydraulic distribution suites 200, or forecast weather parameters actively input; in one example of the intelligent heating system of the present invention, the relevant parameters include parameters fed back by the air source gas absorption heat pump 110, the hydraulic distribution kit 200, and relevant weather information.
Referring to fig. 4, in an example of the intelligent heating system of the present invention, the air source absorption heat pump is a gas-type air source absorption heat pump with a built-in circulation pump 112. The energy-saving natural gas energy-saving air conditioner adopts clean energy natural gas as driving energy, R717 as a refrigerant and water as an absorbent, and extracts low-grade heat energy from air through a fin type heat exchanger, and the operation efficiency is up to 192%. The efficient heat source equipment effectively reduces the operation gas consumption (specific heat source advantage retrievable patent 202120321372X, a novel air source heat pump). Meanwhile, the intelligent heating system determines the number of the heat pumps and the water pumps to be started according to the user occupancy rate and the design calculation building load, the high-efficiency water pumps are selected and used as required, each water pump operates in the high-efficiency working range after being started, the current situation of the southern heating with unstable occupancy rate is effectively adapted, and meanwhile, the power consumption in a heating season is greatly reduced.
In addition, the circulating pump 112 is internally arranged in the gas absorption heat pump unit, so that the temperature of the water supply and return water of each branch is monitored in real time, and the water automatically enters an anti-freezing mode once the water temperature is monitored to be low, the start and stop of the built-in circulating water pump and the start and stop of equipment can be automatically controlled, and the system pipeline is ensured to be in an anti-freezing state.
Referring to fig. 2, 5 and 8, in an example of the intelligent heating system according to the present invention, the hydraulic distribution kit 200 includes a temperature sensor 212 and an electric flow valve 210, but not limited thereto, and may further include a second filter 220, a third valve 230 and a fourth valve 240, for example, the electric flow valve 210 and the temperature sensor 212 are wired or wirelessly connected to the intelligent control platform. The electric flow valve 210 is an electric self-operated flow valve, which can remotely set the service flow, and the set flow is not affected by the pressure difference change of the pipe network, i.e. the valve can realize the constant flow flowing through the valve within the pressure difference change range of 20kpa to 300 kpa. Therefore, the water power distribution kit 200 installed at home can fundamentally solve the water power balance problem of the heat medium transmission and distribution system, and heating users distribute flow according to needs without interfering with each other, so that the water power balance of the pipe network (including the water power balance between buildings, the water power balance between floors and the water power balance between households) is realized, and meanwhile, the water power balance of the pipe network saves the extra operation cost caused by overheat and overcurrent. The self-operated flow regulating valve mainly comprises a valve body 213, an automatic regulating valve plug, a pressure sensing diaphragm, a valve plate for setting flow and an electric actuator 211, wherein the automatic regulating valve plug, the pressure sensing diaphragm and the valve plate are arranged in the valve body 213. In operation, the electric actuator 211 sets the flow to a desired value, and when the pressure difference Δp=p1-p3 increases, the diaphragm drives the automatic valve plug because the pressure of the lower part of the diaphragm is higher than the pressure of the upper part of the diaphragm, the throttle opening is reduced, the pressure difference p1-p2 at the valve opening is kept unchanged, and the original set flow is also kept unchanged. When deltap is reduced, the pressure at the lower part of the diaphragm is smaller than the pressure at the upper part of the diaphragm, so that the diaphragm drives the automatic valve plug to enlarge the throttle opening, the pressure difference p1-p2 at the valve port is kept unchanged, and the original set flow is kept unchanged.
Referring to fig. 3 and fig. 4, in an example of the intelligent heating system of the present invention, a circulation pump 112 is built in a heat source gas absorption heat pump unit, the heat medium on-demand delivery and distribution of the system are realized by using the parallel flow accumulation principle of a plurality of water pumps with the same head, a water inlet pipe assembly 120, a water outlet pipe assembly 130 and an air source gas absorption heat pump 110 are integrated to form a heat source side assembly 100, and the heat source side assembly 100 and a heating power pipe network 300 are connected to realize the water quality treatment, filtration and exhaust treatment of the system. The intelligent heating system is used for realizing engineering equipment, the power and water treatment suite, the hydraulic distribution suite 200 and the like are assembled in a factory, and project sites do not need pump rooms or skid-mounted integrated cabinets to be constructed, pipelines are directly connected to the sites, so that the intelligent heating system is convenient and quick, shortens the construction period and greatly reduces investment.
Referring to fig. 9, the present invention further provides a control method of the intelligent heating system, which includes the following steps:
s1: and the intelligent control platform calculates the maximum heat demand of the heating season of the project according to the occupancy rate determined by the user side and the local heating design parameters. In this step, the local heating design parameters include parameters such as heating design heat load, heating design outdoor environment temperature index, heating design water temperature, etc.
S2: the intelligent control platform determines the number of the air source gas absorption heat pumps 110 to be put into operation according to the maximum heat demand in a project heating season;
s3: the intelligent control platform determines the specific flow of each user at the user end according to the determined number of the input operation of the air source gas absorption heat pump 110, and controls the corresponding hydraulic distribution suite 200 according to the specific flow to realize the on-demand distribution of the flow and the automatic hydraulic balance.
In an example of the control method of the intelligent heating system, the intelligent heating system can be monitored through one or more of the technologies of internet of things, cloud computing, mobile interconnection and intelligent monitoring through various intelligent platforms, so as to realize the complete intelligent operation of the system. In an example of the intelligent heating system control method of the invention, the intelligent heating system adopts an ECO intelligent cloud platform, and the real-time operation data of the heat source side gas-air source gas absorption heat pump 110 and the user side hydraulic distribution assembly (the household self-operated flow valve) are collected to the ECO intelligent cloud platform through the technology of the Internet of things, so that the local unattended operation and the remote monitoring automatic debugging operation of the system can be realized.
In an example of the control method of the intelligent heat supply system, the water treatment suite is installed at the side outlet of the heat source to effectively inhibit system scaling, microorganism breeding and corrosion, so that the circulating water system is clean and airless.
In an example of the control method of the intelligent heating system, in the whole heating operation process, local outdoor meteorological parameters are butted in real time, the temperature of water supply and return required by the heating system in the future is predicted according to the change of heat required by a user, and parameter correction is performed in real time, so that a climate compensation strategy of the whole heating season is realized, and the heating consumption is greatly reduced. The intelligent heating system inputs an automatic operation strategy of climate compensation, so that the operation cost in heating seasons is greatly reduced; and the system starts the number of the heat source equipment and the water pump according to the heat required by a user, can effectively treat dirt and gas of the water system, and greatly reduces the operation cost in heating seasons.
In an example of the control method of the intelligent heating system, a user can monitor the operation parameters of the equipment at any time and any place through the WEB end or the APP end, and can realize remote control and parameter setting of the equipment.
In an example of the control method of the intelligent heating system, a thermal company or a gas company can monitor the return water temperature of a user at any time and any place through a WEB end or an APP end, and can realize remote control of a heat utilization user.
The intelligent heating system adopts the hydraulic distribution suite 200, ensures the hydraulic balance of a pipe network, inputs an automatic control strategy of user flow, distributes the flow according to needs, avoids the phenomenon of overheat and overcurrent, and greatly reduces the operation cost in heating seasons. The initial investment of the heating system and the running cost of the whole heating season are obviously reduced, the heating requirement of a user is met, and the profit requirement of a heating company is met. Therefore, the large-scale application of the invention can make a prominent contribution to the realization of national carbon-to-peak carbon neutralization and atmosphere control strategy.
The intelligent heating system monitors and controls the system through the intelligent control platform, and realizes automation of debugging, operation and maintenance work. The intelligent heat supply system adopts the air source gas absorption heat pump unit, and has high heat source efficiency. The air source gas absorption heat pump unit is internally provided with the circulating pump, the heating medium transmission and distribution system does not need to occupy extra space, the initial investment of projects is greatly reduced, the change of the input rate can be well adapted, and the pump consumption is greatly reduced; in addition, the intelligent heating system adopts the hydraulic distribution suite at the system entrance side, so that the automatic balance of the hydraulic power of the pipe network is realized. Therefore, the invention effectively overcomes some practical problems in the prior art, thereby having high utilization value and use significance.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (26)
1. An intelligent heating system, comprising:
a plurality of air source absorption heat pumps, wherein each air source absorption heat pump is internally provided with a circulating pump;
the heating power pipe network is communicated with the plurality of air source absorption heat pumps to realize circulating heating power supply;
the hydraulic distribution suites are respectively and correspondingly arranged on a user-entering pipeline of a user;
the intelligent control platform is respectively connected with the plurality of air source absorption heat pumps and the plurality of hydraulic distribution kits in a wired or wireless way;
the intelligent control platform comprehensively monitors the air source absorption heat pumps and the hydraulic distribution suites and controls the air source absorption heat pumps and/or the hydraulic distribution suites to act according to related parameters so as to enable a user to achieve qualified heat supply;
wherein said controlling said plurality of air source absorption heat pumps and/or said plurality of hydraulic distribution kit actions according to the relevant parameters comprises:
calculating the maximum heat demand of the heating season of the project according to the occupancy rate determined by the user side and the local heating design parameters;
determining the number of the air source absorption heat pumps which are put into operation according to the maximum heat demand in a project heating season;
And determining the specific flow of each user at the user end according to the determined number of the input operation of the air source absorption heat pump, and controlling the corresponding hydraulic distribution suite according to the specific flow to realize the on-demand distribution of the flow and the automatic hydraulic balance.
2. The intelligent heating system of claim 1, wherein the intelligent control platform comprises an ECO intelligent cloud platform that monitors the intelligent heating system comprehensively by one or more of internet of things, cloud computing, mobile internet computing, and intelligent monitoring technologies.
3. The intelligent heating system of claim 1, further comprising a water treatment system for performing water quality treatment.
4. A smart heating system as recited in claim 3 wherein the water treatment system comprises a plurality of water treatment kits, the plurality of water treatment kits being matched in number to the plurality of air source absorption heat pumps, the plurality of water treatment kits being correspondingly installed at the junction of the heating power network and the plurality of air source absorption heat pumps.
5. The intelligent heating system of claim 4, wherein the intelligent control platform is wired or wirelessly connected to the plurality of water treatment suites for signal acquisition or motion control of the plurality of water treatment suites.
6. The intelligent heating system according to claim 4, wherein the water treatment kit comprises a water inlet pipe assembly with water quality treatment and filtration functions, one end of the water inlet pipe assembly is communicated with a liquid return pipeline of the heating power pipe network, and the other end of the water inlet pipe assembly is communicated with a liquid suction port of the air source absorption heat pump.
7. The intelligent heating system according to claim 6, wherein the water inlet pipe assembly comprises a water inlet pipe, a water quality treatment part and a filter, wherein two ends of the water inlet pipe are respectively communicated with the liquid return pipeline and the liquid suction port, and the water quality treatment part is arranged between the liquid return pipeline and the liquid suction port;
the filter is arranged between the water quality treatment part and the liquid suction port.
8. The intelligent heating system of claim 7, wherein the water treatment kit further comprises a first valve mounted to the inlet tube at an end of the inlet tube facing away from the liquid suction port.
9. The intelligent heating system of claim 7, wherein the water treatment section comprises an electromagnetic water treatment device.
10. The intelligent heating system according to claim 5, wherein the water treatment kit comprises a water outlet pipe assembly with an exhaust function, one end of the water outlet pipe assembly is communicated with a liquid supply pipeline of the heating power pipe network, and the other end of the water outlet pipe assembly is communicated with a liquid outlet of the air source absorption heat pump.
11. The intelligent heating system according to claim 10, wherein the water outlet pipe assembly comprises a water outlet pipe and a gas exhaust device, two ends of the water outlet pipe are respectively communicated with the liquid supply pipeline and the liquid discharge port, and the gas exhaust device is installed on the water outlet pipe.
12. The intelligent heating system of claim 11, wherein the outlet pipe assembly further comprises a target flow switch mounted on the outlet pipe between the exhaust and the liquid supply conduit.
13. The intelligent heating system of claim 12, wherein the outlet pipe assembly further comprises a check valve mounted on the outlet pipe between the target flow switch and the supply pipe.
14. The intelligent heating system of claim 13, wherein the outlet pipe assembly further comprises an anti-freeze valve, the anti-freeze valve being connected in parallel with the check valve.
15. The intelligent heating system of claim 14, wherein the outlet pipe assembly further comprises a second valve mounted to the outlet pipe at an end of the outlet pipe facing away from the drain port.
16. The intelligent heating system of claim 1, wherein the relevant parameters include parameters fed back by the air source absorption heat pump and the hydraulic distribution kit.
17. The intelligent heating system of claim 1, wherein the relevant parameters include relevant weather information.
18. The intelligent heating system of claim 1, wherein the air source absorption heat pump is a gas-fired air source absorption heat pump.
19. The intelligent heating system of claim 1, wherein the hydraulic distribution kit comprises a valve, a temperature sensor, and an electrically powered flow valve, the electrically powered flow valve and the temperature sensor being wired or wirelessly connected to the intelligent control platform.
20. A control method of an intelligent heating system, wherein the intelligent heating system comprises a plurality of air source absorption heat pumps, each air source absorption heat pump is internally provided with a circulating pump, the control method comprises the following steps:
The intelligent control platform calculates the maximum heat demand of the project heating season according to the occupancy rate determined by the user side and the local heating design parameters;
the intelligent control platform determines the number of the air source absorption heat pumps put into operation according to the maximum heat demand of the project heating season;
the intelligent control platform determines the specific flow of each user at the user end according to the determined number of the input operation of the air source absorption heat pump, and controls the corresponding hydraulic distribution suite according to the specific flow to realize the on-demand distribution of the flow and the automatic hydraulic balance.
21. The control method of claim 20, wherein the water treatment kit is installed on the side outlet of the heat source to effectively inhibit system scaling, microorganism growth and corrosion, so that the circulating water system is clean and airless.
22. The control method of claim 20, wherein the intelligent heating system is monitored by one or more of internet of things, cloud computing, mobile interconnection, and intelligent monitoring to achieve fully intelligent operation of the system.
23. The control method according to claim 20, wherein in the whole heating operation process, local outdoor weather parameters are butted in real time, the supply and return water temperature required by the heating system in the future is predicted according to the change of heat required by a user, and parameter correction is performed in real time, so that a climate compensation strategy of the whole heating season is realized, and the heating consumption is greatly reduced.
24. The control method of claim 20, wherein the local heating design parameters include a heating design heat load, a heating design outdoor ambient temperature indicator, and a heating design water temperature.
25. The control method of claim 20, wherein the user monitors an operating parameter of the device and enables remote control of user-in flow.
26. The control method according to claim 20, wherein the thermal company or the gas company monitors the return water temperature of the user and can realize remote control of the user's flow rate.
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