CN103512271A - Direct-fired three-purpose-type lithium bromide absorption-type cold and hot water unit with flue gas heat exchanger - Google Patents
Direct-fired three-purpose-type lithium bromide absorption-type cold and hot water unit with flue gas heat exchanger Download PDFInfo
- Publication number
- CN103512271A CN103512271A CN201310460239.2A CN201310460239A CN103512271A CN 103512271 A CN103512271 A CN 103512271A CN 201310460239 A CN201310460239 A CN 201310460239A CN 103512271 A CN103512271 A CN 103512271A
- Authority
- CN
- China
- Prior art keywords
- hot water
- heat exchanger
- flue gas
- gas 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.)
- Granted
Links
Images
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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/27—Relating to heating, ventilation or air conditioning [HVAC] technologies
- Y02A30/274—Relating to heating, ventilation or air conditioning [HVAC] technologies using waste energy, e.g. from internal combustion engine
-
- 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]
- Y02B30/62—Absorption based systems
- Y02B30/625—Absorption based systems combined with heat or power generation [CHP], e.g. trigeneration
Landscapes
- Sorption Type Refrigeration Machines (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention relates to a direct-fired three-purpose-type lithium bromide absorption-type cold and hot water unit with a flue gas heat exchanger. The direct-fired three-purpose-type lithium bromide absorption-type cold and hot water unit comprises an evaporator (1), an absorber (2), a low-temperature heat exchanger (4), a high-temperature heat exchanger (5), a direct-fired-type high-pressure generator (7), the flue gas heat exchanger (25), a hot-water heat exchanger (14), a low-pressure generator (17) and a condenser (18). The flue gas heat exchanger (25) is additionally arranged in the unit. The flue gas heat exchanger (25) is arranged in a flue exhaust tube (8) of the direct-fired-type high-pressure generator. The flue gas heat exchanger (25) and the hot-water heat exchanger (14) are of a series-connection arrangement structure. A sanitary hot-water inlet tube (11) is connected to the flue gas heat exchanger (25). A sanitary hot-water outlet tube (12) is connected out from the hot-water heat exchanger (14). A hot-water communication tube (26) is arranged between the flue gas heat exchanger (25) and the hot-water heat exchanger (14). Sanitary hot water enters from the flue gas heat exchanger (25) and flows out from the hot-water heat exchanger (14). According to the direct-fired three-purpose-type lithium bromide absorption-type cold and hot water unit, the flue exhaust temperature is lower, and when the unit conducts refrigeration and supplies the sanitary hot water at the same time, condensation water of the sanitary hot-water heat exchanger can be utilized for conducting the refrigeration.
Description
Technical field
The present invention relates to a kind of direct combustion three use type cold/hot water machine of lithium bromide groups.Belong to air conditioner technical field.
Background technology
A kind of direct combustion three use type cold/hot water machine of lithium bromide groups in the past as shown in Figure 1, in unit, be provided with for producing the hot water heat exchanger 14 of health hot water, when making unit or heat (producing air-conditioning or Process heat water) in refrigeration, supply health hot water, also can supply separately health hot water, therefore be called direct combustion three use type cold/hot water machine of lithium bromide groups.On the health hot water outlet 12 of this unit hot water heat exchanger, operated by rotary motion has hot water electric three-way regulating valves 13, and be connected with hot water bypass pipe 29 between health hot water inlet tube 11 and hot water electric three-way regulating valves 13, make unit can regulate control to the load of health hot water when refrigeration supplies health hot water simultaneously or heat simultaneously for health hot water; Unit heats while supplying health hot water simultaneously, with evaporimeter 1, produces air-conditioning or Process heat water.This direct combustion three use type cold/hot water machine of lithium bromide groups are applicable to all application places of lower (general≤70 ℃) of heat supply hot water (air-conditioning or Process heat water) and health hot water temperature, the fume exhausting type of unit is identical with conventional direct-burning lithium bromide absorption cold-hot water assembing group, exhaust gas temperature higher (generally higher than 150 ℃), the temperature difference of underusing between health hot water and exhaust gas temperature is carried out flue gas heat recovery.In addition, this unit be no matter under that operating condition for health hot water, the condensate water in hot water heat exchanger is all directly in condensate return pipe 9 flows back to Direct Fired High Pressure Generator 7, the refrigerating function of condensate water is utilized.
Summary of the invention
The object of the invention is to overcome above-mentioned deficiency, the direct combustion three type cold/hot water machine of lithium bromide groups that a kind of exhaust gas temperature is lower and unit can utilize the condensate water of health hot water heat exchanger to freeze when freezing simultaneously for health hot water are provided.
The object of the present invention is achieved like this: a kind of direct combustion three use type cold/hot water machine of lithium bromide groups with flue gas heat-exchange unit, comprise evaporimeter, absorber, low temperature heat exchanger, high-temperature heat exchanger, Direct Fired High Pressure Generator, flue gas heat-exchange unit, hot water heat exchanger, low pressure generator and condenser, described unit has additional flue gas heat-exchange unit, flue gas heat-exchange unit is arranged in the smoke exhaust pipe of Direct Fired High Pressure Generator, or be arranged in the external chimney of unit, flue gas heat-exchange unit and hot water heat exchanger adopt arranged in series structure, health hot water inlet tube access flue gas heat-exchange unit, health hot water outlet picks out from hot water heat exchanger, between flue gas heat-exchange unit and hot water heat exchanger, be provided with hot water cross over pipe, health hot water enters from flue gas heat-exchange unit, from hot water heat exchanger, go out.
The direct combustion three use type cold/hot water machine of lithium bromide groups of band flue gas heat-exchange unit of the present invention, between hot water heat exchanger and condenser, be provided with condensate water cross over pipe, between hot water heat exchanger and Direct Fired High Pressure Generator, be provided with condensate return pipe, the water inlet of condensate water cross over pipe is lower than the water inlet of condensate return pipe.
The direct combustion three use type cold/hot water machine of lithium bromide groups of band flue gas heat-exchange unit of the present invention, on the health hot water outlet of hot water heat exchanger, be provided with hot water electric three-way regulating valves, and be connected with hot water bypass pipe between hot water cross over pipe and hot water electric three-way regulating valves.
The direct combustion three use type cold/hot water machine of lithium bromide groups of band flue gas heat-exchange unit of the present invention, described condensate water cross over pipe is provided with condensate water stop valve.
The invention has the beneficial effects as follows:
The present invention, on direct combustion three use type cold/hot water machine of lithium bromide group bases in the past, by setting up flue gas heat-exchange unit, reclaims low-temperature flue gas waste heat with health hot water, reduces exhaust gas temperature, thereby reduces energy consumption, improves unit energy efficiency coefficient; By the condensation water for energy conservation device of health hot water heat exchanger is set, make unit when refrigeration supplies health hot water, can utilize the condensate water refrigeration of health hot water heat exchanger simultaneously, thereby reduce unit energy consumption for cooling, improve unit comprehensive energy efficiency coefficient.
Accompanying drawing explanation
Fig. 1 is a kind of direct combustion three use type cold/hot water machine of lithium bromide group structural representations in the past.
Fig. 2 is direct combustion three use type cold/hot water machine of lithium bromide group embodiment 1 schematic diagrames of band flue gas heat-exchange unit of the present invention.
Fig. 3 is direct combustion three use type cold/hot water machine of lithium bromide group embodiment 2 schematic diagrames of band flue gas heat-exchange unit of the present invention.
Reference numeral in figure:
Evaporimeter 1
Low temperature heat exchanger 4
High-temperature heat exchanger 5
Direct Fired High Pressure Generator 7
Condensate water water outlet box 10
Health hot water inlet tube 11
Health hot water outlet 12
Hot water electric three-way regulating valves 13
Hot water heat exchanger 14
Refrigerant vapour pipe 15
Low pressure generator 17
Cooling water outlet pipe 19
Cold (heat) water outlet pipe 20
Cold (heat) water inlet pipe 21
Cooling water inlet pipe 24
Flue gas heat-exchange unit 25
Hot water cross over pipe 26
Condensate water cross over pipe 27
Condensate water stop valve 28
Hot water bypass pipe 29
Steam cross over pipe 30.
The specific embodiment
The present invention is unit as shown in Figure 2, and this unit is the direct combustion three use type cold/hot water machine of lithium bromide groups with flue gas heat-exchange unit that pipeline, the valve by evaporimeter 1, absorber 2, low temperature heat exchanger 4, high-temperature heat exchanger 5, Direct Fired High Pressure Generator 7, flue gas heat-exchange unit 25, hot water heat exchanger 14, low pressure generator 17, condenser 18, solution pump 22, cryogenic fluid pump 23, control system (not shown) and connecting components forms.Wherein, flue gas heat-exchange unit 25 is arranged in the smoke exhaust pipe 8 of Direct Fired High Pressure Generator (also can be arranged in the external chimney of unit); Flue gas heat-exchange unit 25 and hot water heat exchanger 14 adopt arranged in series structure, be health hot water inlet tube 11 access flue gas heat-exchange units, health hot water outlet 12 picks out from hot water heat exchanger 14, between flue gas heat-exchange unit 25 and hot water heat exchanger 14, be provided with hot water cross over pipe 26, the health hot water outlet that this hot water cross over pipe 26 is flue gas heat-exchange unit 25 is also the health hot water inlet tube of hot water heat exchanger 14; On health hot water outlet, be provided with hot water electric three-way regulating valves 13, and be connected with hot water bypass pipe 29 between hot water cross over pipe 26 and hot water electric three-way regulating valves 13; On the condensate water water outlet box 10 of hot water heat exchanger, be provided with the condensate return pipe 9 of the condensate water cross over pipe 27He UNICOM Direct Fired High Pressure Generator 7 of UNICOM's condenser 18 simultaneously, and the water inlet of condensate water cross over pipe 27 is lower than the water inlet of condensate return pipe 9, and condensate water cross over pipe 27 is provided with condensate water stop valve 28; On the pipeline between drain pipe 6 occurred frequently and absorber 2, solution transfer valve 3 is housed, on the pipeline between refrigerant vapour pipe 15 and evaporimeter 1, steam transfer valve 16 is housed, between refrigerant vapour pipe 15 and hot water heat exchanger 14, be connected with steam cross over pipe 30.Condensate water cross over pipe 27 and condensate water stop valve 28 form condensation water for energy conservation device.
When unit refrigeration supplies health hot water simultaneously, solution transfer valve 3 and steam transfer valve 16 are closed, and condensate water stop valve 28 is opened.The flue gas of Direct Fired High Pressure Generator 7 discharges enters flue gas heat-exchange unit 25, with the health hot water heat exchange that enters flue gas heat-exchange unit 25, temperature lower (general≤60 ℃) through health hot water inlet tube 11, making flue-gas temperature be reduced to 100 ℃ enters external chimney after following again and enters atmosphere, thereby reduction heat loss due to exhaust gas, the heat utilization ratio of raising fuel.Go out the health hot water of flue gas heat-exchange unit 25, if temperature has reached design temperature, through hot water bypass pipe 29, hot water electric three-way regulating valves 13 and health hot water outlet 12, go out unit, enter health hot water water system or the heat storage water tank (not shown) of unit outside; If go out the health hot water temperature of flue gas heat-exchange unit lower than design temperature, partly or entirely through hot water cross over pipe 26, enter hot water heat exchanger 14, the further heat temperature raising of high temperature refrigerant vapour that is entered hot water heat exchanger 14 through steam cross over pipe 30, then goes out unit through hot water electric three-way regulating valves 13 and health hot water outlet 12.The control system of unit is by the adjusting of hot water electric three-way regulating valves 13 is controlled, and can carry out step-less adjustment control from 0 ~ 100% to the health hot water flow proportional that enters hot water heat exchanger 14, thereby health hot water outlet temperature is controlled within the required range.After entering the high temperature refrigerant vapour heating health hot water of hot water heat exchanger 14, condense into the condensate water water outlet box 10 that condensate water imports hot water heat exchanger 14, through condensate water communicating pipe 27, enter condenser 18, the water as refrigerant getting off with water as refrigerant from low pressure generator 17 and the interior condensation of condenser 18 together imports evaporimeter 1 cooling cycle system, performance refrigeration effect, thereby reduce the energy consumption for cooling of unit, improve the comprehensive COP of unit.
When unit heats (producing air-conditioning or Process heat water) and supplies health hot water simultaneously, solution transfer valve 3 and steam transfer valve 16 are opened, and condensate water is ended 28 valves and closed.The flue gas of Direct Fired High Pressure Generator discharge enters flue gas heat-exchange unit 25, with the health hot water heat exchange that enters flue gas heat-exchange unit 25, temperature lower (general≤60 ℃) through health hot water inlet tube 11, making flue-gas temperature be reduced to 100 ℃ enters external chimney after following again and enters atmosphere, thereby reduction heat loss due to exhaust gas, the heat utilization ratio of raising fuel.Go out the health hot water of flue gas heat-exchange unit 25, if temperature has reached design temperature, through hot water bypass pipe 29, hot water electric three-way regulating valves 13 and health hot water outlet 12, go out unit; If go out the health hot water temperature of flue gas heat-exchange unit 25 lower than design temperature, partly or entirely through hot water cross over pipe 26, enter hot water heat exchanger 14, the further heat temperature raising of high temperature refrigerant vapour that is entered hot water heat exchanger 14 through steam cross over pipe 30, then goes out unit through hot water electric three-way regulating valves 13 and health hot water outlet 12.The control system of unit, by the adjusting of hot water electric three-way regulating valves 13 is controlled, can be carried out step-less adjustment control from 0 ~ 100% to entering the health hot water flow proportional of hot water heat exchanger 14.After entering the high temperature refrigerant vapour heating health hot water of hot water heat exchanger 14, condense into the condensate water water outlet box 10 that condensate water imports hot water heat exchanger 14, through condensate return pipe 9, enter Direct Fired High Pressure Generator 7.
When unit supplies health hot water separately, solution transfer valve 3 and steam transfer valve 16 are opened, condensate water stop valve 28 is closed, the hot water bypass pipe 29 1 side complete shut-downs of hot water electric three-way regulating valves 13, the health hot water that enters unit first reclaims low-temperature flue gas heat through flue gas heat-exchange unit 25, then through hot water cross over pipe 26, enters hot water heat exchanger 14 and is heated to health hot water outlet design temperature by high temperature refrigerant vapour.The flue-gas temperature that goes out flue gas heat-exchange unit 14 is reduced to 100 ℃ and by external chimney, enters atmosphere below, and the unit in the past of the thermal efficiency ratio while making unit supply health hot water is separately high more than 3%.The condensate water of hot water heat exchanger 14 interior generations enters Direct Fired High Pressure Generator 7 through condensate return pipe 9.
But the cooling water flow path parallel-connection flow (as shown in Figure 2) of unit, also serial flow (as shown in Figure 3).
Claims (5)
1. direct combustion three use type cold/hot water machine of lithium bromide groups with flue gas heat-exchange unit, comprise evaporimeter (1), absorber (2), low temperature heat exchanger (4), high-temperature heat exchanger (5), Direct Fired High Pressure Generator (7), flue gas heat-exchange unit (25), hot water heat exchanger (14), low pressure generator (17) and condenser (18), it is characterized in that: described unit has additional flue gas heat-exchange unit (25), flue gas heat-exchange unit (25) is arranged in the smoke exhaust pipe (8) of Direct Fired High Pressure Generator, or be arranged in the external chimney of unit, flue gas heat-exchange unit (25) and hot water heat exchanger (14) adopt arranged in series structure, health hot water inlet tube (11) access flue gas heat-exchange unit (25), health hot water outlet (12) picks out from hot water heat exchanger (14), between flue gas heat-exchange unit (25) and hot water heat exchanger (14), be provided with hot water cross over pipe (26), health hot water enters from flue gas heat-exchange unit (25), from hot water heat exchanger (14), go out.
2. a kind of direct combustion three use type cold/hot water machine of lithium bromide groups with flue gas heat-exchange unit according to claim 1, it is characterized in that: between hot water heat exchanger (14) and condenser (18), be provided with condensate water cross over pipe (27), between hot water heat exchanger (14) and Direct Fired High Pressure Generator (7), be provided with condensate return pipe (9), the water inlet of condensate water cross over pipe (27) is lower than the water inlet of condensate return pipe (9).
3. a kind of direct combustion three use type cold/hot water machine of lithium bromide groups with flue gas heat-exchange unit according to claim 1 and 2, it is characterized in that: on the health hot water outlet (12) of hot water heat exchanger (14), be provided with hot water electric three-way regulating valves (13), and be connected with hot water bypass pipe (29) between hot water cross over pipe (26) and hot water electric three-way regulating valves (13).
4. a kind of direct combustion three use type cold/hot water machine of lithium bromide groups with flue gas heat-exchange unit according to claim 2, is characterized in that: described condensate water cross over pipe (27) is provided with condensate water stop valve (28).
5. a kind of direct combustion three use type cold/hot water machine of lithium bromide groups with flue gas heat-exchange unit according to claim 3, is characterized in that: described condensate water cross over pipe (27) is provided with condensate water stop valve (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310460239.2A CN103512271B (en) | 2013-10-08 | 2013-10-08 | Direct-fired three-purpose-type lithium bromide absorption-type cold and hot water unit with flue gas heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310460239.2A CN103512271B (en) | 2013-10-08 | 2013-10-08 | Direct-fired three-purpose-type lithium bromide absorption-type cold and hot water unit with flue gas heat exchanger |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103512271A true CN103512271A (en) | 2014-01-15 |
| CN103512271B CN103512271B (en) | 2015-07-15 |
Family
ID=49895402
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310460239.2A Active CN103512271B (en) | 2013-10-08 | 2013-10-08 | Direct-fired three-purpose-type lithium bromide absorption-type cold and hot water unit with flue gas heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103512271B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848581A (en) * | 2015-05-08 | 2015-08-19 | 双良节能***股份有限公司 | Two stage evaporation and absorption double effect type lithium bromide absorption refrigeration/heating machine unit |
| CN105423592A (en) * | 2015-12-23 | 2016-03-23 | 双良节能***股份有限公司 | Double-working-condition direct-fired double-effect type lithium bromide absorption type heat pump set |
| CN110986421A (en) * | 2019-12-06 | 2020-04-10 | 双良节能***股份有限公司 | A low-emission, high-energy-efficiency direct-fired lithium bromide absorption cold and hot water unit |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001208446A (en) * | 2000-01-26 | 2001-08-03 | Osaka Gas Co Ltd | Heat recovery apparatus |
| CN2839913Y (en) * | 2005-11-03 | 2006-11-22 | 江苏双良空调设备股份有限公司 | Direct fired lithum bromide absorptive machine set for providing cool, hot and sanitary hot water |
| CN201844606U (en) * | 2010-11-01 | 2011-05-25 | 双良节能***股份有限公司 | Novel high-efficiency and direct-fired lithium bromide absorption-type water heater/chiller |
| CN102901269A (en) * | 2012-10-31 | 2013-01-30 | 张勤福 | Multipurpose direct coal-fired machine for refrigeration, heat supply and bathing |
| CN202915597U (en) * | 2012-10-27 | 2013-05-01 | 双良节能***股份有限公司 | Two-section flue gas hot-water single-effect and double-effect composite lithium bromide absorption type refrigerating unit |
| CN203501545U (en) * | 2013-10-08 | 2014-03-26 | 双良节能***股份有限公司 | Direct-fired triple-purpose lithium bromide absorption cold and hot water set with flue gas heat exchanger |
-
2013
- 2013-10-08 CN CN201310460239.2A patent/CN103512271B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001208446A (en) * | 2000-01-26 | 2001-08-03 | Osaka Gas Co Ltd | Heat recovery apparatus |
| CN2839913Y (en) * | 2005-11-03 | 2006-11-22 | 江苏双良空调设备股份有限公司 | Direct fired lithum bromide absorptive machine set for providing cool, hot and sanitary hot water |
| CN201844606U (en) * | 2010-11-01 | 2011-05-25 | 双良节能***股份有限公司 | Novel high-efficiency and direct-fired lithium bromide absorption-type water heater/chiller |
| CN202915597U (en) * | 2012-10-27 | 2013-05-01 | 双良节能***股份有限公司 | Two-section flue gas hot-water single-effect and double-effect composite lithium bromide absorption type refrigerating unit |
| CN102901269A (en) * | 2012-10-31 | 2013-01-30 | 张勤福 | Multipurpose direct coal-fired machine for refrigeration, heat supply and bathing |
| CN203501545U (en) * | 2013-10-08 | 2014-03-26 | 双良节能***股份有限公司 | Direct-fired triple-purpose lithium bromide absorption cold and hot water set with flue gas heat exchanger |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104848581A (en) * | 2015-05-08 | 2015-08-19 | 双良节能***股份有限公司 | Two stage evaporation and absorption double effect type lithium bromide absorption refrigeration/heating machine unit |
| CN104848581B (en) * | 2015-05-08 | 2017-05-24 | 双良节能***股份有限公司 | Two stage evaporation and absorption double effect type lithium bromide absorption refrigeration/heating machine unit |
| CN105423592A (en) * | 2015-12-23 | 2016-03-23 | 双良节能***股份有限公司 | Double-working-condition direct-fired double-effect type lithium bromide absorption type heat pump set |
| CN105423592B (en) * | 2015-12-23 | 2018-02-02 | 双良节能***股份有限公司 | Double-working-condition direct combustion dual effect type lithium bromide absorption type heat pump unit |
| CN110986421A (en) * | 2019-12-06 | 2020-04-10 | 双良节能***股份有限公司 | A low-emission, high-energy-efficiency direct-fired lithium bromide absorption cold and hot water unit |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103512271B (en) | 2015-07-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105841390B (en) | A kind of gas driven air source heat pump thermal power plant unit for central heating system | |
| CN201081367Y (en) | Heat-recovery geothermal heat pump | |
| CN102997483B (en) | Direct-burning lithium bromide absorbing cold hot water unit capable of recycling smoke waste heat | |
| CN204718176U (en) | Utilize the absorption system of residual heat from boiler fume | |
| CN102997482B (en) | Direct-fired lithium bromide absorption cold-hot water unit for recovering flue gas waste heat under heating working condition | |
| CN102767921B (en) | Double-way pre-cooling efficient heat pump device and control method thereof | |
| CN101876496A (en) | A double evaporator direct-fired absorption chiller and hot water unit | |
| CN202470536U (en) | Double-high flue gas hot-water after-burning type lithium bromide absorption type cold and hot water unit | |
| CN203011002U (en) | Direct-fired lithium bromide absorption type heating and refrigerating unit with smoke valve and used for recovering smoke waste heat | |
| CN105509363B (en) | High-efficiency cleaning multiple-energy-source comprehensively utilizes cold-hot combined supply system | |
| CN103512271B (en) | Direct-fired three-purpose-type lithium bromide absorption-type cold and hot water unit with flue gas heat exchanger | |
| CN102997496B (en) | Direct-fired lithium bromide absorption cold-hot water unit provided with flue gas valves and used for recovering flue gas waste heat | |
| CN203010995U (en) | Direct-fired lithium bromide absorption type cold and hot water unit for recovering flue gas waste heat | |
| CN203501546U (en) | Direct-fired triple-purpose lithium bromide absorption cold and hot water set with dual-energy-saving device | |
| CN201844612U (en) | Water heater capable of using cold air | |
| CN108692482B (en) | Efficiency improving system combining thermoelectric unit and refrigeration and application method | |
| CN203848548U (en) | Multipurpose air source heat pump unit | |
| CN203704427U (en) | Two-section type flue gas hot water single effect and double effect combined type lithium bromide absorption type water chilling unit | |
| CN203704428U (en) | Flue gas hot water single-effect or dual-effect composite-type lithium bromide absorption-type cold water and cold hot water unit | |
| CN202177214U (en) | Novel cold air water heater equipped with two condenser | |
| CN203501545U (en) | Direct-fired triple-purpose lithium bromide absorption cold and hot water set with flue gas heat exchanger | |
| CN202868984U (en) | Multi-temperature zone carbon dioxide heat pump water heater | |
| CN105509336A (en) | Vacuum tube type solar heat pump hot-water system | |
| CN201340135Y (en) | Hot water direct combustion single/double effect composite type lithium bromide absorption cold water/hot and cold water set | |
| CN202085655U (en) | Hot water generator for milk cooling tank |
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 |