CN104132386A - Air source heat pump floor heating system - Google Patents
Air source heat pump floor heating system Download PDFInfo
- Publication number
- CN104132386A CN104132386A CN201410353865.6A CN201410353865A CN104132386A CN 104132386 A CN104132386 A CN 104132386A CN 201410353865 A CN201410353865 A CN 201410353865A CN 104132386 A CN104132386 A CN 104132386A
- Authority
- CN
- China
- Prior art keywords
- heat pump
- heating
- air source
- source heat
- water
- 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
Classifications
-
- 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 discloses an air source heat pump floor heating system which comprises a circulating water module, an air source heat pump, a heating water tank, a tail end floor heating module, a water pump, an electric heating module, an electromagnetic valve, an expansion tank, a temperature sensor and a controller. An inlet of the circulating water module is connected with the expansion tank, the expansion tank is connected with an inlet of the water pump, an outlet of the water pump is connected with an inlet of the air source heat pump, and an outlet of the air source heat pump is connected with an inlet of the heating water tank. According to the air source heat pump floor heating system, the frequency of the adopted water pump can be automatically adjusted according to the probability of indoor opening, the main engine starting and stopping frequency caused in the circumstance of the large heating capacity of an indoor low load device can be easily reduced, the speed of decreasing of the overall water temperature can be reduced in a defrosting mode, the floor can be heated more rapidly in the primary heating period of a floor heating system, waiting time of users is shortened, and the pressure of the system cannot be reduced in the circumstance that outside water pressure is insufficient.
Description
Technical field
The present invention relates to a kind of floor heating system, particularly relate to a kind of Floor Heating System with Air Source Heat Pump.
Background technology
Low-temperature floor radiant heating is a kind of system of utilizing interior of building ground to carry out heating, it take low-temperature water heating as heating agent, by being embedded in plastic tube in floor floor heating, using whole ground as radiating surface, to indoor radiations heat energy, be a kind of energy-saving heating system that room micro climate is regulated uniformly.
Low-temperature floor radiant heating gives the warm cool comfort of pin, the physiology that meets human body regulates feature, meet the desirable impression of human body, can promote blood circulation of human body, simultaneously because it does not take room area, thermally-stabilised good, the advantage such as relatively energy-conservation has obtained extensive approval, gradually due to energy saving, security and the feature of environmental protection of air source heat pump on market, replace gradually traditional electric heating, boiler class heating system, become the desirable heating equipment in following southern market.
Yet, utilize air source heat pump to carry out heating and also can have following point: first, its heating capacity under worst cold case is lower, under defrost operating mode, can have influence on system water temperature, reduce indoor temperature, and then have influence on indoor comfort; In first heating process, there is long problem of heat time in water system; Non-oepration at full load during user heating, and environment temperature is when higher, indoor radiating amount is less, and the heating capacity of air source heat pump is larger on the contrary, so be just necessary to reduce water pump frequency and reduce the number of starts of FU in the time; Intrasystem hydraulic pressure is easily subject to the impact of pressure of supply water in addition, and as pressure of supply water has larger reduction, the corresponding reduction of hydraulic pressure in system, just easily produces gaseous state, has influence on the heat-transfer effect of system.
In view of this, be necessary to provide in fact a kind of Floor Heating System with Air Source Heat Pump, this Floor Heating System with Air Source Heat Pump can solve current heat time length and the poor problem of heat-transfer effect.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide a kind of Floor Heating System with Air Source Heat Pump, this Floor Heating System with Air Source Heat Pump can solve above-mentioned heat time length and the poor problem of heat-transfer effect.
For achieving the above object, technical scheme of the present invention is as follows:
Floor Heating System with Air Source Heat Pump of the present invention, it comprises a recirculated water module, an end floor heating module and an air source heat pump, and this air source heat pump comprises a heat pump import and heat pump outlet, and this Floor Heating System with Air Source Heat Pump also comprises:
Controller, this controller and described air source heat pump are electrically connected;
Water pump, this water pump is connected with described heat pump import, and this water pump and the electric connection of described controller;
Expansion drum, this expansion drum one end is connected with described water pump, and the other end is connected with described recirculated water module;
Heating water tank, this heating water tank is connected with described heat pump outlet, and this heating water tank is connected with described end floor heating module;
Electrical heating module, this electrical heating module is placed in a heating water tank, and this electrical heating module and described controller are electrically connected; And
Magnetic valve, this magnetic valve one end is connected with described heating water tank, and the other end is connected with described water pump, and this magnetic valve and the electric connection of described controller.
Preferably, described water pump is variable frequency pump.
Preferably, described expansion drum is nonreturn type expansion drum.
Preferably, described electrical heating module comprises some electric heating tubes, and is in parallel between electric heating tube.
Preferably, described magnetic valve is nonreturn type magnetic valve.
Preferably, described heating water tank is provided with a temperature sensor, and this temperature sensor and described controller are electrically connected.
Floor Heating System with Air Source Heat Pump of the present invention, the electrical heating module adding in heating water tank can be under defrost pattern or the situation of main frame heating capacity deficiency automatically start, the sense of discomfort of having avoided the fluctuation because of indoor load to bring, in addition, the variable frequency pump adopting can be adjusted automatically according to the probability of indoor unlatching the frequency of water pump, so more energy-conservation, the heating water tank arranging has increased the thermal capacitance of recirculated water, be conducive to be reduced in the main frame start and stop frequency in indoor underload equipment great heating capacity situation, can under defrost pattern, delay the speed that whole water temperature reduces simultaneously, between heating water tank and the loop of end floor heating module, magnetic valve is installed, operational phase or end floor heating in the early stage safeguards that the period opens to keep water tank water temperature constant, between floor heating first period of heating, can heat faster ground like this, reduce period of reservation of number, expansion drum can make system hydraulic pressure keep the constant gas collection of avoiding also can automatically maintain system pressure according to expanding with heat and contract with cold of circulation of fluid, even in the situation of extraneous hydraulic pressure deficiency, therefore system pressure can not reduce yet.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in embodiment of the present invention technology, to the accompanying drawing of required use in embodiment technical description be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the present embodiment.
The specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making the every other embodiment obtaining under creative work prerequisite, belong to the scope of protection of the invention.
In the present embodiment, consult shown in Fig. 1, Floor Heating System with Air Source Heat Pump of the present invention, it comprises recirculated water module 10, air source heat pump 1, heating water tank 2, end floor heating module 3, water pump 4, electrical heating module 5, magnetic valve 6, expansion drum 7, temperature sensor 8 and controller 9, recirculated water module 10 is soft water, the import of recirculated water module 10 is connected with expansion drum 7, expansion drum 7 is connected with the import of water pump 4, the outlet of water pump 4 is connected with the import of air source heat pump 1, the outlet of air source heat pump 1 is connected with the import of heating water tank 2, the outlet of heating water tank 2 is divided into two-way, one tunnel connects the water knockout drum of end floor heating module 3, after being connected with another road of heating water tank 2 again on the return pipe of water collector outlet, return on return pipe, return pipe end is connected between the import and expansion drum 7 of water pump 4, electrical heating module 5 and temperature sensor 8 are housed on heating water tank 2, magnetic valve 6 is installed between heating water tank 2 and return pipe, here magnetic valve 6 has and can prevent from going here and there between loop and heating water tank 2 effect of water, between controller 9 and temperature sensor 8, with holding wire, be connected, controller 9 and air source heat pump 1, water pump 4, between electrical heating module 5 and magnetic valve 6, with control line, connect, electrical heating module 5 comprises some electric heating tubes, and be in parallel between electric heating tube.
In the present embodiment, described water pump 4 is variable frequency pump, and described expansion drum 7 is nonreturn type expansion drum, and described magnetic valve 6 is nonreturn type magnetic valve.
Heating water tanks and heating pattern: the start and stop of water pump 4 are controlled according to user heating demand, when user needs heating, select heating pattern, water pump 4 is opened automatically, magnetic valve 6 and indoor each branch road motor-driven valve switchover operation, under heating pattern, when indoor arbitrary branch road motor-driven valve is not opened, magnetic valve 6 energisings are opened, otherwise, when indoor arbitrary branch road motor-driven valve is opened, magnetic valve 6 power-off are closed, can guarantee like this water pump 4 state in path operation all the time, under heating pattern, system can detect the water temperature of heating water tank 2 automatically, if water temperature is lower than lower limit temperature T1, air source heat pump 1 is automatically opened heating water tank 2 or end floor heating module 3 is heated, when reaching ceiling temperature T2, air source heat pump 1 is closed.
Defrost pattern and electrical heating preference pattern: under defrost pattern, electrical heating module 5 is moved automatically according to the water temperature detecting, and to maintain the required heat of indoor radiating, avoids causing the big ups and downs of water temperature; When air source heat pump 1 exits defrost pattern, electrical heating module 5 is automatically out of service, when because environment temperature is too low, the heating capacity of air source heat pump 1 is during lower than indoor radiating amount, can adopt electrical heating preference pattern, electrical heating module 5 can adopt the mode of many electric heating tubes in parallel, so that user need to select different heating powers according to temperature in the situation that environment temperature is too low.
Variable mode, and the high situation of environment temperature: when indoor while only having part room to carry out heating, under the condition of identical supply and return water temperature, the needed discharge of system is less, now system can reduce water pump 4 frequencies automatically according to hydraulic pressure or the actual feeder number of opening, to reduce water pump 4 power consumptions, make whole system more energy-conservation, under variable mode or when environment temperature is higher, the heating capacity of main frame is greater than or much larger than indoor heat dissipation capacity, now utilize the thermal capacitance of the water in heating water tank 2 can accumulate the speed that a part of heat reduces for alleviating system water temperature, thereby reduce the frequency that main frame is opened.
Voltage stabilizing function: when the supplementary pressure of soft water is higher, system automatic water supplement; When the supplementary pressure decreased of soft water, the hydraulic pressure of system can't change along with the reduction of supplementing water pressure; In heating process, water temperature changes unavoidably to some extent, and like this due to the effect of expanding with heat and contract with cold, the actual volume of water system and pressure also can constantly change, therefore the expansion drum 7 increasing can effectively be alleviated such problem.
Floor Heating System with Air Source Heat Pump of the present invention, the electrical heating module 5 adding in heating water tank 2 can be under defrost pattern or the situation of main frame heating capacity deficiency automatically start, the sense of discomfort of having avoided the fluctuation because of indoor load to bring, in addition, the water pump 4 adopting can be adjusted automatically according to the probability of indoor unlatching the frequency of water pump 4, so more energy-conservation, the heating water tank 2 arranging has increased the thermal capacitance of recirculated water, be conducive to be reduced in the main frame start and stop frequency in indoor underload equipment great heating capacity situation, can under defrost pattern, delay the speed that whole water temperature reduces simultaneously, between heating water tank 2 and the loop of end floor heating module 3, magnetic valve 6 is installed, operational phase or end floor heating in the early stage safeguards that the period opens to keep water tank water temperature constant, between floor heating first period of heating, can heat faster ground like this, reduce period of reservation of number, expansion drum 7 can make system hydraulic pressure keep the constant gas collection of avoiding also can automatically maintain system pressure according to expanding with heat and contract with cold of circulation of fluid, even in the situation of extraneous hydraulic pressure deficiency, therefore system pressure can not reduce yet.
Above-mentioned explanation to the disclosed embodiments, makes professional and technical personnel in the field can realize or use the present invention.To the multiple modification of these embodiment, will be apparent for those skilled in the art, General Principle as defined herein can, in the situation that not departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. a Floor Heating System with Air Source Heat Pump, it comprises a recirculated water module, an end floor heating module and an air source heat pump, this air source heat pump comprises a heat pump import and heat pump outlet, it is characterized in that, this Floor Heating System with Air Source Heat Pump also comprises:
Controller, this controller and described air source heat pump are electrically connected;
Water pump, this water pump is connected with described heat pump import, and this water pump and the electric connection of described controller;
Expansion drum, this expansion drum one end is connected with described water pump, and the other end is connected with described recirculated water module;
Heating water tank, this heating water tank is connected with described heat pump outlet, and this heating water tank is connected with described end floor heating module;
Electrical heating module, this electrical heating module is placed in a heating water tank, and this electrical heating module and described controller are electrically connected; And
Magnetic valve, this magnetic valve one end is connected with described heating water tank, and the other end is connected with described water pump, and this magnetic valve and the electric connection of described controller.
2. Floor Heating System with Air Source Heat Pump according to claim 1, is characterized in that, described water pump is variable frequency pump.
3. Floor Heating System with Air Source Heat Pump according to claim 1, is characterized in that, described expansion drum is nonreturn type expansion drum.
4. Floor Heating System with Air Source Heat Pump according to claim 1, is characterized in that, described electrical heating module comprises some electric heating tubes, and is in parallel between electric heating tube.
5. Floor Heating System with Air Source Heat Pump according to claim 1, is characterized in that, described magnetic valve is nonreturn type magnetic valve.
6. Floor Heating System with Air Source Heat Pump according to claim 1, is characterized in that, described heating water tank is provided with a temperature sensor, and this temperature sensor and described controller are electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353865.6A CN104132386A (en) | 2014-07-24 | 2014-07-24 | Air source heat pump floor heating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410353865.6A CN104132386A (en) | 2014-07-24 | 2014-07-24 | Air source heat pump floor heating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104132386A true CN104132386A (en) | 2014-11-05 |
Family
ID=51805167
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410353865.6A Pending CN104132386A (en) | 2014-07-24 | 2014-07-24 | Air source heat pump floor heating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104132386A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344453A (en) * | 2014-11-03 | 2015-02-11 | 广州德能热源设备有限公司 | Floor heating system with variable-frequency air source heat pump |
| CN104949192A (en) * | 2015-07-13 | 2015-09-30 | 顺德职业技术学院 | Energy-saving control method for floor radiant heating system comprising variable-frequency heat-pump water heater |
| CN106016419A (en) * | 2016-05-31 | 2016-10-12 | 许昌东方热力有限公司 | Heat supply system |
| CN107270370A (en) * | 2017-08-04 | 2017-10-20 | 黑龙江省木材科学研究所 | A kind of device for simulating ground radiation heating |
| CN108266778A (en) * | 2016-12-30 | 2018-07-10 | 青岛海尔新能源电器有限公司 | A kind of thermodynamic heating system and heat pump heating method |
| CN109028250A (en) * | 2018-07-13 | 2018-12-18 | 珠海格力电器股份有限公司 | Heating pipeline, heating system and control method |
| CN112856546A (en) * | 2021-03-29 | 2021-05-28 | 河北博志热能设备有限公司 | Heating assembly device for improving heating effect of side room for heating of heat pump and control method thereof |
| RU205043U1 (en) * | 2019-12-24 | 2021-06-24 | Иван Владимирович Анисифоров | Hydrostrel |
| CN113639455A (en) * | 2021-08-19 | 2021-11-12 | 浙江英特科技股份有限公司 | Hydraulic center and air conditioner circulating water system with same |
| CN113864863A (en) * | 2021-09-27 | 2021-12-31 | 苏州美瑞德建筑装饰有限公司 | Intelligent design structure applied to energy-saving heating system |
| WO2023020065A1 (en) * | 2021-08-19 | 2023-02-23 | 浙江英特科技股份有限公司 | Hydraulic center and air-conditioning circulating water system having hydraulic center |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4363218A (en) * | 1981-04-10 | 1982-12-14 | Halstead Industries, Inc. | Heat pump using solar and outdoor air heat sources |
| JP2010243129A (en) * | 2009-04-09 | 2010-10-28 | Asahi Kasei Homes Co | Radiation cooling/heating system |
| CN201636957U (en) * | 2010-02-02 | 2010-11-17 | 华东电力试验研究院有限公司 | Energy-saving and environment-friendly solar floor heating and hot water system for office building |
| CN102139166A (en) * | 2010-12-07 | 2011-08-03 | 天津科技大学 | Method for drying carbide slag slurry |
| CN202125983U (en) * | 2011-05-31 | 2012-01-25 | 福州斯狄渢电热水器有限公司 | Comprehensive warming and heating system of solar air source heat pump |
| CN202561876U (en) * | 2012-06-01 | 2012-11-28 | 浙江正理生能科技有限公司 | Floor-heating constant-temperature system of water heater with air-source heat pump |
| CN203052805U (en) * | 2012-12-25 | 2013-07-10 | 福州斯狄渢电热水器有限公司 | Hybrid energy remote intelligent control heat supply heating system |
| CN103913006A (en) * | 2014-04-28 | 2014-07-09 | 科希曼电器有限公司 | Floor heating and air conditioning integrated device based on air source heat pump technology |
-
2014
- 2014-07-24 CN CN201410353865.6A patent/CN104132386A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4363218A (en) * | 1981-04-10 | 1982-12-14 | Halstead Industries, Inc. | Heat pump using solar and outdoor air heat sources |
| JP2010243129A (en) * | 2009-04-09 | 2010-10-28 | Asahi Kasei Homes Co | Radiation cooling/heating system |
| CN201636957U (en) * | 2010-02-02 | 2010-11-17 | 华东电力试验研究院有限公司 | Energy-saving and environment-friendly solar floor heating and hot water system for office building |
| CN102139166A (en) * | 2010-12-07 | 2011-08-03 | 天津科技大学 | Method for drying carbide slag slurry |
| CN202125983U (en) * | 2011-05-31 | 2012-01-25 | 福州斯狄渢电热水器有限公司 | Comprehensive warming and heating system of solar air source heat pump |
| CN202561876U (en) * | 2012-06-01 | 2012-11-28 | 浙江正理生能科技有限公司 | Floor-heating constant-temperature system of water heater with air-source heat pump |
| CN203052805U (en) * | 2012-12-25 | 2013-07-10 | 福州斯狄渢电热水器有限公司 | Hybrid energy remote intelligent control heat supply heating system |
| CN103913006A (en) * | 2014-04-28 | 2014-07-09 | 科希曼电器有限公司 | Floor heating and air conditioning integrated device based on air source heat pump technology |
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104344453A (en) * | 2014-11-03 | 2015-02-11 | 广州德能热源设备有限公司 | Floor heating system with variable-frequency air source heat pump |
| CN104949192A (en) * | 2015-07-13 | 2015-09-30 | 顺德职业技术学院 | Energy-saving control method for floor radiant heating system comprising variable-frequency heat-pump water heater |
| CN106016419A (en) * | 2016-05-31 | 2016-10-12 | 许昌东方热力有限公司 | Heat supply system |
| CN108266778B (en) * | 2016-12-30 | 2020-03-06 | 青岛海尔新能源电器有限公司 | Heat pump heating system and heat pump heating method |
| CN108266778A (en) * | 2016-12-30 | 2018-07-10 | 青岛海尔新能源电器有限公司 | A kind of thermodynamic heating system and heat pump heating method |
| CN107270370A (en) * | 2017-08-04 | 2017-10-20 | 黑龙江省木材科学研究所 | A kind of device for simulating ground radiation heating |
| CN109028250A (en) * | 2018-07-13 | 2018-12-18 | 珠海格力电器股份有限公司 | Heating pipeline, heating system and control method |
| CN109028250B (en) * | 2018-07-13 | 2023-10-31 | 珠海格力电器股份有限公司 | Control method for controlling operation of heating system |
| RU205043U1 (en) * | 2019-12-24 | 2021-06-24 | Иван Владимирович Анисифоров | Hydrostrel |
| CN112856546A (en) * | 2021-03-29 | 2021-05-28 | 河北博志热能设备有限公司 | Heating assembly device for improving heating effect of side room for heating of heat pump and control method thereof |
| CN113639455A (en) * | 2021-08-19 | 2021-11-12 | 浙江英特科技股份有限公司 | Hydraulic center and air conditioner circulating water system with same |
| WO2023020065A1 (en) * | 2021-08-19 | 2023-02-23 | 浙江英特科技股份有限公司 | Hydraulic center and air-conditioning circulating water system having hydraulic center |
| CN113639455B (en) * | 2021-08-19 | 2023-03-10 | 浙江英特科技股份有限公司 | Hydraulic center and air conditioner circulating water system with same |
| CN113864863A (en) * | 2021-09-27 | 2021-12-31 | 苏州美瑞德建筑装饰有限公司 | Intelligent design structure applied to energy-saving heating system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104132386A (en) | Air source heat pump floor heating system | |
| US20170074527A1 (en) | Water tower applied to the water source heat pump central air conditioner | |
| CN201964683U (en) | Cold-heat integrated supply device for solar air conditioner | |
| CN103542614B (en) | heating and refrigerating system | |
| CN105222396A (en) | Solar air source water source associating heating | |
| CN205536791U (en) | Wind channel structure and refrigerator | |
| CN205843128U (en) | The heating refrigeration system that multiple-energy-source is combined with little temperature difference heat exchange end | |
| CN104626925B (en) | Electrombile thermal management system | |
| CN201513995U (en) | Refrigerating system capable of utilizing ground temperature to provide cooling for buildings through floor warming system | |
| KR101548073B1 (en) | Heating-apparatus and Water-heater storing heat capable of using the hot heat of heat-source separated from heat storing tank directly | |
| CN105486004A (en) | Air flue structure and refrigerator | |
| CN202328466U (en) | Indoor heat supply device based on concentrated heat supply system | |
| CN204006253U (en) | Air source heat pump floor board heating structure | |
| CN204285586U (en) | Portable low-voltage warmer | |
| CN207350600U (en) | Higher temperatures cold supply system | |
| CN203147896U (en) | Secondary side water replenishing device for closed heat exchange system | |
| CN205403146U (en) | Air source heat pump and high frequency electric magnetism heating all -in -one | |
| CN105299731B (en) | A kind of solar energy heating and utilization peak-trough electricity auxiliary heating technique | |
| CN205156207U (en) | Novel energy -conserving air conditioner of low ebb electricity | |
| CN205481870U (en) | Novel instant heating type solar water heater system of hydrologic cycle | |
| CN103225844A (en) | Secondary side water supplementing device for closed heat exchange system | |
| CN102444945A (en) | Ground source heat pump air conditioning plant used for supplying warm and cool based on radiation | |
| CN202274637U (en) | Automatic water replenishing device of ground source heat pump | |
| CN206539060U (en) | The special box house in plateau | |
| CN103727616A (en) | Solar-wind co-controlled air conditioner |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20141105 |