CN102425853B - Energy-saving type three-temperature-output water boiler - Google Patents

Energy-saving type three-temperature-output water boiler Download PDF

Info

Publication number
CN102425853B
CN102425853B CN 201110422546 CN201110422546A CN102425853B CN 102425853 B CN102425853 B CN 102425853B CN 201110422546 CN201110422546 CN 201110422546 CN 201110422546 A CN201110422546 A CN 201110422546A CN 102425853 B CN102425853 B CN 102425853B
Authority
CN
China
Prior art keywords
water
heat exchanger
electric heater
energy
heater unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN 201110422546
Other languages
Chinese (zh)
Other versions
CN102425853A (en
Inventor
许志伟
廖祖维
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangzhou HKUST Fok Ying Tung Research Institute
Original Assignee
Guangzhou HKUST Fok Ying Tung Research Institute
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guangzhou HKUST Fok Ying Tung Research Institute filed Critical Guangzhou HKUST Fok Ying Tung Research Institute
Priority to CN 201110422546 priority Critical patent/CN102425853B/en
Publication of CN102425853A publication Critical patent/CN102425853A/en
Application granted granted Critical
Publication of CN102425853B publication Critical patent/CN102425853B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Heat-Pump Type And Storage Water Heaters (AREA)

Abstract

The invention relates to an energy-saving type three-temperature-output water boiler, comprising a water supplementing device, an electric heating device, a heat-pump circulating system and a heat exchanger, wherein the heat exchanger and a heat pump are respectively used for recovering the heat from boiling water and warm water so as to heat newly-supplemented water. The energy-saving type three-temperature output water boiler is characterized in that the boiled water after high-temperature sterilization is output by three temperature modes such as a hot mode, a warm mode and a cold mode so as to meet the need of instantaneous drinking. In the energy-saving type three-temperature output water boiler, the boiled water is output instantaneously or cooled by section so as to obtain hot water, warm water and cold water; simultaneously, the heat released by two sections of cooling processes is used for heating the newly-supplemented water by the heat exchanger and the heat pump, so that the energy consumed by high-temperature sterilization is greatly reduced. In the energy-saving type three-temperature output water boiler, the cold/hot water heat exchanger is combined with a compressor, an evaporator and a condenser in the heat-pump system, and after a multi-way valve is arranged, the drinking water with three water temperatures such as hot water, warm water and cold water can be output instantaneously.

Description

A kind of energy-saving three temperature output water boilers
Technical field
The present invention relates to a kind of water boiler, be specifically related to a kind of energy-saving three temperature output water boilers.
Background technology
Be not suitable for directly drinking at the most of regional fresh water of China (running water).Running water is just drinkable after need seething with excitement usually and sterilizing.In fact the boiling water of high temperature is not suitable for drinking immediately.
Directly relevant with energy-conservation the water boiler U.S. or European patent are few.This may be because come the situation of disinfectant soup water few in the U.S. or Europe by ebuillition of heated.Xiang Guan patent majority is sterilization or the bacterial control for water therewith, such as the United States Patent (USP) that is applied to large-scale water system [publication number US6251279B1] and international patent application [publication number WO0163182A1].A kind of hot-water heating system of Britain inventor invention is divided into two parts so that it can heat institute's water requirement accurately with electrically heated water boiling vessels.This invention is declared to compare with common electrically heated water boiling vessels has 31% energy-saving effect.The Chinese patent application (publication number CN2914939) that energy-saving drinking device is relevant, a kind of energy-saving electrothermic kettle is disclosed, it is made up of kettle body, pot lid, handle, be characterized in: kettle body and pot lid are double-decker, in its double-decker thermal insulation layer is arranged, scribble heat-barrier material at kettle body and pot lid outside.Another Chinese patent application (publication number CN2850476) and for example, a kind of energy-conservation Quick heating kettle is disclosed, comprise the kettle body, arranged outside at the kettle body has the shell that adapts with the kettle body profile and be connected with kettle body top sides edge, the bottom of shell is hatch frame, and form a cavity structure between shell and the kettle body, make the part of waste heat behind the flame combustion external along continuing to give the heating of kettle body periphery along kettle by this cavity structure, make large-area being heated of water in the kettle, water will be boiled in a short period of time like this.The correlation technique that existing patent application relates to mainly is to promote thermal source and be heated heat transfer efficiency between the water by the inside that changes water boiler or external structure, such as the heat transfer area that increases water boiler.These prior aries have increased heat transfer efficiency and then have reduced energy consumption, lifting firing rate.But these improved energy-saving effects are limited.
Chinese patent application (application number CN200720101809.9) discloses a kind of heat energy pump type boiled for another example, the cold water water dispenser, it has by hot water, boiling water, the water tank that cold water storage cistern is formed, its boiler and boiled water tank, boiled water tank is connected with the water pipe that cold water storage cistern is configured magnetic valve respectively, at boiling water, hot water, be respectively arranged with electric tube heater in the cold water storage cistern, cold-producing medium formula water heating tube, cold-producing medium formula water refrigerator pipes, with the water tank phase configuration air heat exchanger and energy coupled heat exchanger are arranged, the refrigerant pipe that is configured conversion electromagnetic valve connects compressor, the once end of energy coupled heat exchanger, expansion valve, refrigerator pipes and air heat exchanger are formed air source heat pump and air, water resource heat pump connects compressor through refrigerant pipe, heating tube, the secondary terminals of expansion valve and energy coupled heat exchanger is formed artificial source's high temperature heat pump.
Above-mentioned patent application is adopted heat pump mode to absorb heat from cold water and is given hot water.But the cold water of its output and hot water need be through the boiling sterilization processing, and these drinking devices do not have the function to the drinking water disinfection sterilization.Therefore, the device that relates to of prior art can not be exported the drinking water of three kinds of temperature crossing through high-temperature process.
Summary of the invention
The objective of the invention is to overcome the prior art above shortcomings, a kind of energy-saving three temperature output water boilers are provided, boiled water can be lowered the temperature at once among the present invention, and respectively with hot water, warm water and three kinds of temperature outputs of cold water, concrete technical scheme is as follows.
A kind of energy-saving three temperature output water boilers, comprise water replanishing device, electric heater unit, hot-water cylinder, warm water jar and cold water tank, it also comprises heat pump circulating system and heat exchanger, heat pump circulating system comprises the compressor that is arranged in closed circuit, cooler is put in condensation radiator and evaporation, the delivery port of described water replanishing device is connected with the cold fluid entrance of heat exchanger, the cold fluid outlet of heat exchanger is connected with the water inlet of condensation radiator, the delivery port of condensation radiator is connected with the water inlet of electric heater unit, the boiling water outlet of electric heater unit is divided into two branch roads, one the tunnel is connected with hot-water cylinder, and another road is connected with the hot fluid entrance of described heat exchanger; The outlet of the hot fluid of heat exchanger is divided into two branch roads, and one the tunnel is connected with the warm water jar, another road with evaporate the water inlet of putting cooler and be connected, evaporate the delivery port of putting cooler and be connected with cold water tank.
As the optimisation technique scheme of above-mentioned energy-saving three temperature output water boilers, be provided with one-way cock between the cold fluid outlet of heat exchanger and the water inlet of condensation radiator; Be provided with one-way cock between the delivery port of condensation radiator and the water inlet of electric heater unit.
As the optimisation technique scheme of above-mentioned energy-saving three temperature output water boilers, described water replanishing device comprises the replenisher tank for the dress fresh water; Described electric heater unit comprises electric heater.
Optimisation technique scheme as above-mentioned energy-saving three temperature output water boilers is equipped with in the described heater be used to the temperature sensor that prevents overheated or dry combustion method, and temperature sensor is serially connected in the switch of heater.
As the optimisation technique scheme of above-mentioned energy-saving three temperature output water boilers, the boiling water outlet of electric heater unit is divided into two branch roads by multi-channel valve; The hot fluid outlet of heat exchanger is divided into two branch roads by another multi-channel valve.
A kind of energy-saving three temperature output water boilers, comprise water replanishing device, electric heater unit, hot-water cylinder, warm water jar and cold water tank, it also comprises heat pump circulating system and heat exchanger, heat pump circulating system comprises the compressor that is arranged in closed circuit, cooler is put in condensation radiator and evaporation, the delivery port of described water replanishing device is connected with condensation radiator water inlet, the delivery port of condensation radiator is connected with the cold fluid entrance of heat exchanger, the cold fluid outlet of heat exchanger is connected with the water inlet of electric heater unit, the boiling water outlet of electric heater unit is divided into two branch roads, one the tunnel is connected with hot-water cylinder, and another road is connected with the hot fluid entrance of heat exchanger; The outlet of the hot fluid of heat exchanger is divided into two branch roads, and one the tunnel is connected with the warm water jar, another road with evaporate the water inlet of putting cooler and be connected, evaporate the delivery port of putting cooler and be connected with cold water tank.
As the optimisation technique scheme of above-mentioned energy-saving three temperature output water boilers, be provided with one-way cock between the cold fluid outlet of described heat exchanger and the water inlet of electric heater unit.
As the optimisation technique scheme of above-mentioned energy-saving three temperature output water boilers, described water replanishing device comprises the replenisher tank for the dress fresh water; Described electric heater unit comprises electric heater.
Optimisation technique scheme as above-mentioned energy-saving three temperature output water boilers is equipped with in the described heater be used to the temperature sensor that prevents overheated or dry combustion method, and temperature sensor is serially connected in the switch of heater.
As the optimisation technique scheme of above-mentioned energy-saving three temperature output water boilers, the boiling water outlet of described electric heater unit is divided into two branch roads by multi-channel valve; The hot fluid outlet of heat exchanger is divided into two branch roads by another multi-channel valve.Compared with prior art, the water boiler that the present invention makes up heat exchanger and heat pump, its heat exchanger and heat pump are respectively applied to reclaim heat and give fresh moisturizing to be heated from boiling water and warm water.The present invention drinks water in the boiling temperature sterilization, and it is exported with hot water, warm water and three kinds of temperature of cold water.This feasible output can be satisfied multiple water temperature demand and significantly energy-conservation immediately.Concrete advantage and technique effect are analyzed as follows:
(1) because moisturizing is preheated to higher temperature, the ebuillition of heated required time is shortened greatly and heater power also reduces greatly.
(2) being different from traditional water boiler always has residual water in body, and the present invention can heat the drinking water of accurate amount.This will produce extra energy-saving effect.
(3) the present invention can produce the drinking water through high-temperature sterilization, can be cooled to drinkable water temperature at once or export with boiling temperature after high-temperature sterilization.
(4) the present invention is because having installed one-way cock, and the entrainment with steam that adopts boiling to produce is simultaneously carried high-temperature sterilization water, therefore is suitable for the situation that low pressure supplies water.
Description of drawings
Fig. 1 is a kind of structural representation of energy-saving three temperature output water boilers of the present invention.
Fig. 2 is the another kind of structural representation of energy-saving three temperature output water boilers of the present invention.
The specific embodiment
Below in conjunction with accompanying drawing and example enforcement of the present invention is described further, but enforcement of the present invention and protection domain are not limited thereto.
As Fig. 1, a kind of energy-saving three temperature output water boilers, comprise water pot 1, electric heater 4, hot-water cylinder 7, warm water jar 8 and cold water tank 9, also comprise heat pump circulating system and heat exchanger 2, heat pump circulating system comprises by compressor 12, the closed circuit that cooler 11 constitutes is put in condensation radiator 13 and evaporation, the delivery port of water pot 1 is connected with the cold fluid entrance of heat exchanger 2, the cold fluid outlet of heat exchanger is connected with the water inlet of condensation radiator, the delivery port of condensation radiator is connected with the water inlet of electric heater unit, the boiling water outlet of electric heater is divided into two branch roads by multi-channel valve 6, one the tunnel is connected with hot-water cylinder, and another road is connected with the hot fluid entrance of described heat exchanger; The outlet of the hot fluid of heat exchanger is divided into two branch roads by another multi-channel valve 10, and one the tunnel is connected with the warm water jar, another road with evaporate the water inlet of putting cooler and be connected, evaporate the delivery port of putting cooler and be connected with cold water tank.Be provided with one-way cock 14 between the cold fluid outlet of heat exchanger and the water inlet of condensation radiator; Be provided with another one-way cock 3 between the delivery port of condensation radiator and the water inlet of electric heater unit.
The course of work: fresh moisturizing is stored in the water pot 1 or directly and is supplied with by running water.Fresh moisturizing be transported in cold/hot water heat exchanger 2 and the condensation radiator 13 respectively with electric heater 4 in the boiling water of output and the cold-producing medium heat exchange in the heat pump circuit, temperature raises gradually.Fresh moisturizing after the intensification is transported to boil partly (being to be used for position to boil water in the electric heater unit) that heat is provided by electric heater 4.Check valve 3 is installed to prevent the refluence of water in the pipeline in transfer pipeline.Boil part be equipped with temperature sensor 5 with prevent that lack of water from causing to boil part overheated.Multi-channel valve 6 is housed in the pipeline that boils the part back, and boiling water can directly be sent into hot-water cylinder 7 or send into cold/hot water heat exchanger 2 through multi-channel valve.Boiling water is flowed through and is become warm water behind the cold/hot water heat exchanger 2, and warm water can enter warm water jar 8 or enter evaporation after by multi-channel valve 10 puts cooler 11.Warm water is put in the cooler by the refrigerant cools to be evaporated in the heat pump circuit in evaporation, and cooling becomes cold water.The cold water that cooler 11 outputs are put in evaporation directly enters in the cold water tank 9.In the heat pump cycle loop, gaseous refrigerant heats up through compressor 12 and enters condensation radiator 13 by pipeline.The cold-producing medium liquefaction of lowering the temperature in condensation radiator 13 is delivered to evaporation by pipeline and is put cooler 11.Evaporation is put in the cooler after the cold-producing medium heat absorption is evaporated to gas, loops back the entrance of compressor 12 again by the road.Wherein, the position of cold/hot water heat exchanger 2 and condensation radiator 13 also can be arranged as shown in Figure 2, fresh moisturizing is transported in condensation radiator 13 and the cold/hot water heat exchanger 2, respectively with heat pump circuit in cold-producing medium and electric heater 4 in output boiling water carry out heat exchange after, temperature raises gradually.Fresh moisturizing after the intensification is transported to the part of boiling that heat is provided by electric heater 4.Multi-channel valve 6 is housed in the pipeline that boils the part back, and boiling water can directly be sent into hot-water cylinder 7 or send into cold/hot water heat exchanger 2 through multi-channel valve.Boiling water is flowed through and is become warm water behind the cold/hot water heat exchanger 2, and warm water can enter warm water jar 8 or enter evaporation after by multi-channel valve 10 puts cooler 11.Warm water is put in the cooler by the refrigerant cools to be evaporated in the heat pump circuit in evaporation, and cooling becomes cold water.
As above can realize the present invention preferably, below again for an embodiment.
Embodiment: adopt technological process shown in Figure 1, be upgraded to example calculating per hour to heat boiling water 10.Used moisturizing temperature is 25 ° of C, and the moisturizing preheat temperature is 80 ° of C, and boiled water temperature is 100 ° of C, boiling water rate of gasification 1%, electric heater input power 0.288kw, 50 ° of C of warm water output temperature, 20 ° of C of cold water output temperature.Heat exchanger surface amasss 0.0342m 2Wherein long-pending to get overall heat-transfer coefficient be 0.02cal s to heat exchanger surface -1M -2K -1Calculate.Heat pump efficiency COP gets 1 and calculates, and then compares with the water boiler that does not contain heat exchanger and heat pump, and fractional energy savings is about 85%.

Claims (10)

1. energy-saving three temperature are exported water boilers, comprise water replanishing device, electric heater unit, hot-water cylinder, warm water jar and cold water tank, it is characterized in that also comprising heat pump circulating system and heat exchanger, heat pump circulating system comprises the compressor that is arranged in closed circuit, cooler is put in condensation radiator and evaporation, the delivery port of described water replanishing device is connected with the cold fluid entrance of heat exchanger, the cold fluid outlet of heat exchanger is connected with the water inlet of condensation radiator, the delivery port of condensation radiator is connected with the water inlet of electric heater unit, the boiling water outlet of electric heater unit is divided into two branch roads, one the tunnel is connected with hot-water cylinder, and another road is connected with the hot fluid entrance of described heat exchanger; The outlet of the hot fluid of heat exchanger is divided into two branch roads, and one the tunnel is connected with the warm water jar, another road with evaporate the water inlet of putting cooler and be connected, evaporate the delivery port of putting cooler and be connected with cold water tank.
2. energy-saving three temperature output water boilers according to claim 1 is characterized in that being provided with one-way cock between the water inlet of the cold fluid outlet of heat exchanger and condensation radiator; Be provided with one-way cock between the delivery port of condensation radiator and the water inlet of electric heater unit.
3. energy-saving three temperature output water boilers according to claim 1 is characterized in that described water replanishing device comprises the replenisher tank for the dress fresh water; Described electric heater unit comprises electric heater.
4. according to each described energy-saving three temperature output water boilers of claim 1 ~ 3, it is characterized in that being equipped with in the described electric heater unit be used to the temperature sensor that prevents overheated or dry combustion method, temperature sensor is serially connected in the switch of electric heater unit.
5. energy-saving three temperature output water boilers according to claim 4 is characterized in that the boiling water outlet of electric heater unit is divided into two branch roads by multi-channel valve; The hot fluid outlet of heat exchanger is divided into two branch roads by another multi-channel valve.
6. energy-saving three temperature are exported water boilers, comprise water replanishing device, electric heater unit, hot-water cylinder, warm water jar and cold water tank, it is characterized in that also comprising heat pump circulating system and heat exchanger, heat pump circulating system comprises the compressor that is arranged in closed circuit, cooler is put in condensation radiator and evaporation, the delivery port of described water replanishing device is connected with condensation radiator water inlet, the delivery port of condensation radiator is connected with the cold fluid entrance of heat exchanger, the cold fluid outlet of heat exchanger is connected with the water inlet of electric heater unit, the boiling water outlet of electric heater unit is divided into two branch roads, one the tunnel is connected with hot-water cylinder, and another road is connected with the hot fluid entrance of heat exchanger; The outlet of the hot fluid of heat exchanger is divided into two branch roads, and one the tunnel is connected with the warm water jar, another road with evaporate the water inlet of putting cooler and be connected, evaporate the delivery port of putting cooler and be connected with cold water tank.
7. energy-saving three temperature output water boilers according to claim 6 is characterized in that being provided with one-way cock between the water inlet of the cold fluid outlet of described heat exchanger and electric heater unit.
8. energy-saving three temperature output water boilers according to claim 6 is characterized in that described water replanishing device comprises the replenisher tank for the dress fresh water; Described electric heater unit comprises electric heater.
9. according to each described energy-saving three temperature output water boilers of claim 5 ~ 8, it is characterized in that being equipped with in the described electric heater unit be used to the temperature sensor that prevents overheated or dry combustion method, temperature sensor is serially connected in the switch of electric heater unit.
10. energy-saving three temperature output water boilers according to claim 9 is characterized in that the boiling water outlet of described electric heater unit is divided into two branch roads by multi-channel valve; The hot fluid outlet of heat exchanger is divided into two branch roads by another multi-channel valve.
CN 201110422546 2011-12-15 2011-12-15 Energy-saving type three-temperature-output water boiler Expired - Fee Related CN102425853B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201110422546 CN102425853B (en) 2011-12-15 2011-12-15 Energy-saving type three-temperature-output water boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201110422546 CN102425853B (en) 2011-12-15 2011-12-15 Energy-saving type three-temperature-output water boiler

Publications (2)

Publication Number Publication Date
CN102425853A CN102425853A (en) 2012-04-25
CN102425853B true CN102425853B (en) 2013-09-25

Family

ID=45959864

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 201110422546 Expired - Fee Related CN102425853B (en) 2011-12-15 2011-12-15 Energy-saving type three-temperature-output water boiler

Country Status (1)

Country Link
CN (1) CN102425853B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103919464B (en) * 2014-04-18 2017-05-31 甘瑞群 The cold pure boiling water frequency conversion water dispenser of warm
CN107367063A (en) * 2017-07-18 2017-11-21 天津城建大学 One kind of multiple temperature plug and play phase-transition heat-storage energy-saving water boilers
CN107865588A (en) * 2017-12-09 2018-04-03 徐根彪 The warm water feed system and control method of water dispenser
CN108613245A (en) * 2018-07-06 2018-10-02 西北工业大学 A kind of energy saving water consumption device of the multi-mode of energy recycling
CN110486941A (en) * 2019-08-21 2019-11-22 河南科技大学 A kind of Air-source Heat Pump boiler and its refrigerating and heating method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2779305Y (en) * 2005-01-19 2006-05-10 蔡佰明 Anti-penetration heat pump warm drinking machine
CN101077269A (en) * 2007-06-27 2007-11-28 王全龄 Heat energy pump type boiled water and cold water drinking machine
CN101664270A (en) * 2009-09-11 2010-03-10 青岛光和阳光环保节能科技有限公司 Multifunctional water dispenser
CN202501620U (en) * 2011-12-15 2012-10-24 广州市香港科大霍英东研究院 Energy-saving type three-temperature-output water boiler

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2779305Y (en) * 2005-01-19 2006-05-10 蔡佰明 Anti-penetration heat pump warm drinking machine
CN101077269A (en) * 2007-06-27 2007-11-28 王全龄 Heat energy pump type boiled water and cold water drinking machine
CN101664270A (en) * 2009-09-11 2010-03-10 青岛光和阳光环保节能科技有限公司 Multifunctional water dispenser
CN202501620U (en) * 2011-12-15 2012-10-24 广州市香港科大霍英东研究院 Energy-saving type three-temperature-output water boiler

Also Published As

Publication number Publication date
CN102425853A (en) 2012-04-25

Similar Documents

Publication Publication Date Title
CN102425853B (en) Energy-saving type three-temperature-output water boiler
CN102997483B (en) Direct-burning lithium bromide absorbing cold hot water unit capable of recycling smoke waste heat
CN202501620U (en) Energy-saving type three-temperature-output water boiler
CN104329826B (en) The vertical big temperature difference of multistage of a kind of double-barrel structure absorbs machine
CN201074908Y (en) Heat pump type boiled water and cold water drinking machine
CN102997482B (en) Direct-fired lithium bromide absorption cold-hot water unit for recovering flue gas waste heat under heating working condition
CN100518594C (en) Heat energy pump type boiled water and cold water drinking machine
CN204787425U (en) Prepare hydrothermal circulation system of high temperature
CN105157274B (en) cooling/heating system
KR20130111186A (en) Hybrid heating apparatus and method thereof
CN203010995U (en) Direct-fired lithium bromide absorption type cold and hot water unit for recovering flue gas waste heat
CN205037563U (en) Novel air source heat pump under low -temperature environment
CN207317054U (en) A kind of UTILIZATION OF VESIDUAL HEAT IN heating system
CN207487126U (en) A kind of automatic waste heat recovery water heater for being embedded in refrigeration system
CN207196992U (en) The vacuum cooled and defrosting system of a kind of solar energy absorption type refrigeration
CN202902720U (en) Ice slurry water source heat pump
CN107560159A (en) A kind of automatic waste heat recovery water heater for being embedded in refrigeration system
CN205137900U (en) Heat -pump water heater
CN210855353U (en) Drinking water preparation facilities
CN209325908U (en) Domestic hot-water's preparation system that earth source heat pump is combined with solar energy
CN209819856U (en) Drinking hot water and cold air supply integrated machine
CN102997496A (en) Direct-fired lithium bromide absorption cold-hot water unit provided with flue gas valves and used for recovering flue gas waste heat
CN206755647U (en) A kind of absorption heat exchange device
CN206959331U (en) A kind of efficiently recuperation of heat Teat pump boiler
CN206563448U (en) Magnetic suspension handpiece Water Chilling Units and the double runtimes of lithium bromide source pump

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130925

Termination date: 20171215

CF01 Termination of patent right due to non-payment of annual fee