CN109458751B - On-line detection density hot water type lithium bromide absorption type low-temperature water chilling unit - Google Patents
On-line detection density hot water type lithium bromide absorption type low-temperature water chilling unit Download PDFInfo
- Publication number
- CN109458751B CN109458751B CN201811606510.8A CN201811606510A CN109458751B CN 109458751 B CN109458751 B CN 109458751B CN 201811606510 A CN201811606510 A CN 201811606510A CN 109458751 B CN109458751 B CN 109458751B
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- China
- Prior art keywords
- water
- refrigerant
- lithium bromide
- bromide absorption
- hot 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.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 217
- AMXOYNBUYSYVKV-UHFFFAOYSA-M lithium bromide Chemical compound [Li+].[Br-] AMXOYNBUYSYVKV-UHFFFAOYSA-M 0.000 title claims abstract description 86
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 42
- 238000001514 detection method Methods 0.000 title claims abstract description 28
- 239000003507 refrigerant Substances 0.000 claims abstract description 107
- 238000001704 evaporation Methods 0.000 claims abstract description 36
- 230000008020 evaporation Effects 0.000 claims abstract description 30
- 239000007788 liquid Substances 0.000 claims abstract description 16
- 239000002826 coolant Substances 0.000 claims abstract description 15
- 239000000498 cooling water Substances 0.000 claims abstract description 10
- 239000012808 vapor phase Substances 0.000 claims abstract description 6
- 239000006096 absorbing agent Substances 0.000 claims description 4
- 239000002918 waste heat Substances 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 claims 1
- 235000017491 Bambusa tulda Nutrition 0.000 claims 1
- 241001330002 Bambuseae Species 0.000 claims 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 claims 1
- 239000011425 bamboo Substances 0.000 claims 1
- 238000004378 air conditioning Methods 0.000 abstract description 2
- 238000007710 freezing Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000008014 freezing Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B15/00—Sorption machines, plants or systems, operating continuously, e.g. absorption type
- F25B15/02—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas
- F25B15/06—Sorption machines, plants or systems, operating continuously, e.g. absorption type without inert gas the refrigerant being water vapour evaporated from a salt solution, e.g. lithium bromide
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/04—Arrangement or mounting of control or safety devices for sorption type machines, plants or systems
- F25B49/043—Operating continuously
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2700/00—Sensing or detecting of parameters; Sensors therefor
- F25B2700/19—Pressures
-
- 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
-
- 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
Abstract
The utility model provides an online detection density hot water formula lithium bromide absorption formula low temperature cooling water set, relates to air conditioning equipment technical field, the unit drive heat source is hot water, and generator (1) is drenches formula, and hot water cools down in the generator heat transfer pipe and flows, and the unit includes evaporation temperature sensor (9), and this unit has set up coolant water density on-line measuring device, coolant water density on-line measuring device sets up coolant water inner tube (13) in coolant water urceolus (14), and two barrel bottoms parallel and level, upper portion leave vapor phase space, urceolus bottom coolant water advances outer bobbin (11) department and is equipped with the restricted orifice, and the inner tube bottom is connected with coolant water back liquid sac tube (10), and urceolus top is connected with coolant water balance tube (15), urceolus lower part setting coolant water pressure sensor (12). The device can realize automatic online detection of the water density of the refrigerant, further control the water density of the refrigerant within a safe range, improve the reliability and ensure that the hot water type lithium bromide absorption low-temperature water chilling unit is in an optimal running state.
Description
Technical Field
The invention relates to the technical field of air conditioning equipment, in particular to a hot water type lithium bromide absorption low-temperature water chilling unit.
Background
The common hot water type lithium bromide absorption chiller is shown in fig. 1, cold water with the temperature of more than 7 ℃ is prepared for air conditioner users or production processes, the temperature safety value of the cold water circulated in the chiller is generally controlled to be more than 3 ℃, and the chiller needs to detect the cold water density when the chiller detects that the refrigerating capacity is insufficient in the first debugging or running. The method of manually sampling is generally adopted for detecting the water density of the refrigerant, a densimeter is used for measuring and reading data, and once the water density of the refrigerant is found to be more than 1.04g/ml, the refrigerant is regarded as pollution, namely the refrigerant is mixed with lithium bromide solution, bypass regeneration is needed until the water density of the refrigerant is less than 1.002g/ml, and the refrigerant meets the unit requirement.
However, for a hot water type lithium bromide absorption type low-temperature water chilling unit for preparing cold water at about 0 ℃, the anti-freezing is critical, an anti-freezing solution can be added into cold water of an external system to reduce the freezing point of the cold water, the temperature of the cold water circulating inside the unit is lower than that of the cold water of the external system, in order to reduce the freezing point of the cold water, a method for adding a lithium bromide solution into the cold water is often adopted, the content of the lithium bromide solution in the cold water is controlled within a certain range according to the temperature of the cold water, the refrigerating capacity is influenced if the density of the cold water is too high, and the freezing risk exists if the density of the cold water is too low, so that the hot water type lithium bromide absorption type low-temperature water chilling unit needs to automatically detect the density of the cold water on line in real time during operation. How to automatically and online detect the water tightness of the refrigerant in real time, improves the safety and reliability, ensures that the unit is in an optimal running state, saves the unit cost, and becomes one of the important subjects of the research of the existing hot water type lithium bromide absorption type low-temperature water chilling unit.
Disclosure of Invention
The invention aims to solve the problems in the background problems and provides the density hot water type lithium bromide absorption low-temperature water chilling unit which can enable the unit to be in an optimal running state, is low in cost and can detect the density hot water type lithium bromide on line.
The purpose of the invention is realized in the following way: the utility model provides an online detection density hot water type lithium bromide absorption formula low temperature cooling water set, includes generator, condenser, evaporimeter, absorber, solution heat exchanger, thin solution bypass valve, evaporation temperature sensor etc. the unit drive heat source is hot water, and the generator is for drenching formula, and hot water flows after the cooling in the generator heat transfer pipe, and this unit has set has add refrigerant water density online detection device, and this refrigerant water density online detection device is by refrigerant water intake outer bobbin, refrigerant water returns the liquid sac tube, refrigerant water urceolus, refrigerant water inner tube, refrigerant water balance tube, refrigerant water pressure sensor and control system constitution. The refrigerant water outer cylinder is internally provided with a refrigerant water inner cylinder, the bottoms of the two cylinders are level, the upper part of the two cylinders is provided with a vapor phase space, a refrigerant water inlet outer cylinder pipe at the bottom of the outer cylinder is provided with a flow limiting hole, the bottom of the inner cylinder is connected with a refrigerant water return liquid sac pipe, the top of the outer cylinder is connected with a refrigerant water balance pipe, and the lower part of the outer cylinder is provided with a refrigerant water pressure sensor. The evaporation temperature measured by the evaporation temperature sensor corresponds to the evaporation pressure.
The device also comprises an evaporation pressure sensor, wherein the evaporation pressure sensor is arranged at the top of the refrigerant water outer cylinder or in the vapor phase region of the evaporator cylinder. The evaporating pressure is measured directly with an evaporating pressure sensor.
The hot water type lithium bromide absorption type low-temperature water chilling unit is of a multi-section type, overlapping type or a secondary absorption type.
The drive waste heat is hot water, heat transfer oil or other medium.
The cooling water is in series.
The cooling water is connected in parallel.
The device leads one path of refrigerant water from the outlet pipe of the refrigerant pump to enter the bottom of the refrigerant water outer cylinder through the refrigerant water inlet outer cylinder pipe, the refrigerant water in the outer cylinder overflows into the refrigerant water inner cylinder, and then flows into the evaporator liquid sac by the liquid level difference through the refrigerant water liquid return sac pipe automatically, and the refrigerant water continuously circulates according to the flow. The liquid level of the refrigerant water in the outer cylinder is a fixed value, the density of the refrigerant water changes to change the pressure measured by the refrigerant water pressure sensor along with the change of the liquid level, the temperature of the cold water outlet changes to change the evaporation pressure measured by the evaporation pressure sensor along with the change of the evaporation pressure (or the evaporation temperature measured by the evaporation temperature sensor corresponds to the evaporation pressure), the measured refrigerant water pressure minus the evaporation pressure is equal to the online detection of the refrigerant water pressure difference, the refrigerant water pressure difference corresponds to the refrigerant water density, the calculation formula and the corresponding relation are input into a control program, the touch screen of the unit directly displays the refrigerant water density, and the dilute solution bypass valve is regulated according to the refrigerant water density to control the refrigerant water density within a safe range.
Compared with the prior art, the invention has the beneficial effects that:
according to the online detection device for the coolant water density, the coolant water density is automatically detected online, the coolant water density is controlled within the safety range by the bypass valve for adjusting the dilute solution according to the coolant water density, so that the unit is in an optimal running state, the cost of the online detection device for the coolant water density is far lower than that of an online densimeter sold in the market, the measurement accuracy is high, and the vacuum tightness is good. The online detection device for the coolant water tightness can reduce the overall cost of the hot water type lithium bromide absorption type low-temperature water chilling unit, improve the safety and reliability, solve the key problem of freezing prevention, prolong the product line of the lithium bromide absorption type water chilling unit and have wider application field.
Drawings
Fig. 1 is a schematic diagram of a conventional hot water type lithium bromide absorption low-temperature water chiller.
Fig. 2 is a schematic structural diagram of another embodiment of an on-line detection density hot water type lithium bromide absorption low temperature water chiller according to the present invention.
Fig. 3 is a schematic structural diagram of another embodiment of an on-line detection density hot water type lithium bromide absorption low temperature water chiller according to the present invention.
Fig. 4 is a schematic structural diagram of an on-line detection density hot water type lithium bromide absorption low temperature water chiller according to the present invention, wherein:
the device comprises a generator 1, a condenser 2, an evaporator 3, an absorber 4, a solution heat exchanger 5, a solution pump 6, a refrigerant pump 7, a dilute solution bypass valve 8, an evaporation temperature sensor 9, a refrigerant water return sac tube 10, a refrigerant water inlet outer tube 11, a refrigerant water pressure sensor 12, a refrigerant water inner tube 13, a refrigerant water outer tube 14, a refrigerant water balance tube 15, an evaporation pressure sensor 16, a cooling water inlet A, a cooling water outlet B, a hot water inlet C, a hot water outlet D, a low-temperature cold water inlet E and a low-temperature cold water outlet F.
Detailed description of the preferred embodiments
The invention is illustrated in the following description with reference to the figures and examples:
example 1:
as shown in fig. 2, the on-line detection density hot water type lithium bromide absorption low-temperature water chilling unit comprises a generator 1, a condenser 2, an evaporator 3, an absorber 4, a solution heat exchanger 5, a solution pump 6, a refrigerant pump 7, a dilute solution bypass valve 8 and the like, wherein a unit driving heat source is hot water, the generator 1 is showered, the hot water flows out after being cooled in a heat transfer pipe of the generator, and the unit is additionally provided with a refrigerant water density on-line detection device which comprises a refrigerant water return liquid bladder pipe 10, a refrigerant water inlet outer barrel 11, a refrigerant water pressure sensor 12, a refrigerant water inner barrel 13, a refrigerant water outer barrel 14, a refrigerant water balance pipe 15, an evaporation pressure sensor 16, a control system and the like. The refrigerant water outer cylinder 14 is internally provided with a refrigerant water inner cylinder 13, the bottoms of the two cylinders are level, the upper part of the two cylinders is provided with a vapor phase space, the refrigerant water at the bottom of the outer cylinder is provided with a flow limiting hole at the position of the refrigerant water inlet outer cylinder pipe 11, the bottom of the inner cylinder is connected with the refrigerant water return liquid sac pipe 10, the top of the outer cylinder is connected with the refrigerant water balance pipe 15, the lower part of the outer cylinder is provided with a refrigerant water pressure sensor 12, the top of the outer cylinder is provided with an evaporation pressure sensor 16, and the evaporation pressure sensor 16 is arranged at the top of the refrigerant water outer cylinder 14.
In the scheme, the hot water type lithium bromide absorption type low-temperature water chilling unit is of a multi-section type, overlapping type or a two-stage generation two-stage absorption type.
In the above scheme, the driving waste heat is waste hot water, heat conducting oil or other mediums.
In the above scheme, the cooling water is connected in series or in parallel.
Example 2:
in another embodiment, as shown in FIG. 3, the vapor pressure sensor 16 is disposed in the vapor phase region of the evaporator cylinder.
Example 3:
in another embodiment, as shown in fig. 4, the evaporating pressure sensor 16 is not provided, and the evaporating temperature measured by the evaporating temperature sensor 9 corresponds to the evaporating pressure.
The device leads one path of refrigerant water from the outlet pipe of the refrigerant pump 7 to enter the bottom of the refrigerant water outer cylinder through the refrigerant water inlet outer cylinder pipe 11, the refrigerant water in the outer cylinder overflows into the refrigerant water inner cylinder 13, and then flows into the evaporator liquid sac through the refrigerant water liquid return sac pipe 10 by the liquid level difference, and the refrigerant water continuously circulates according to the flow. The liquid level of the refrigerant in the outer cylinder is a fixed value, the change of the refrigerant water pressure causes the refrigerant water pressure measured by the refrigerant water pressure sensor 12 to change along with the change of the refrigerant water level, the change of the cold water outlet temperature causes the change of the evaporation pressure measured by the evaporation pressure sensor 16 (or the change of the evaporation temperature corresponding to the evaporation pressure measured by the evaporation temperature sensor 9), the measured refrigerant water pressure minus the evaporation pressure is equal to the online detection of the refrigerant water pressure difference, the refrigerant water pressure difference corresponds to the refrigerant water density, the corresponding relation between the calculation formula (and the corresponding relation between the evaporation temperature and the evaporation pressure) and the refrigerant water density is input into a control program, the touch screen of the unit directly displays the refrigerant water density, thereby realizing the automatic online detection of the refrigerant water density, and the bypass valve 8 is adjusted according to the refrigerant water density to control the refrigerant water density within a safe range, the reliability is improved, and the hot water type lithium bromide absorption type low temperature water chiller is in an optimal running state.
In addition to the above embodiments, the present invention also includes other embodiments, and all technical solutions that are formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides an on-line measuring density hot water type lithium bromide absorption formula low temperature cooling water set, it includes generator (1), condenser (2), evaporimeter (3), absorber (4), solution heat exchanger (5), solution pump (6), coolant pump (7), thin solution bypass valve (8) and evaporation temperature sensor (9), its characterized in that: the unit drive heat source is hot water, the generator (1) is the shower, and hot water flows out after cooling in the generator heat transfer pipe, and this unit has still add refrigerant water density on-line measuring device, refrigerant water density on-line measuring device includes refrigerant water back liquid sac tube (10), refrigerant water inlet outer tube (11), refrigerant water pressure sensor (12), refrigerant water inner tube (13), refrigerant water urceolus (14), refrigerant water balance pipe (15) and control system, be provided with refrigerant water inner tube (13) in refrigerant water urceolus (14), the section of thick bamboo bottom parallel and level of refrigerant water urceolus (14) and refrigerant water inner tube (13), upper portion remains the vapor space, refrigerant water urceolus (14) bottom refrigerant water inlet outer tube (11) department is equipped with the restricted orifice, refrigerant water urceolus (13) bottom is connected with refrigerant water back liquid sac tube (10), refrigerant water urceolus (14) top and refrigerant water balance pipe (15) are connected, refrigerant water urceolus (14) lower part (12) water pressure sensor.
2. The on-line detection density hot water type lithium bromide absorption low temperature water chiller according to claim 1, wherein the on-line detection density hot water type lithium bromide absorption low temperature water chiller is characterized in that: the device also comprises an evaporation pressure sensor (16), wherein the evaporation pressure sensor (16) is arranged at the top of the refrigerant water outer cylinder (14) or in the vapor phase region of the evaporator cylinder.
3. The on-line detection density hot water type lithium bromide absorption low temperature water chilling unit according to claim 1 or 2, wherein the on-line detection density hot water type lithium bromide absorption low temperature water chilling unit is characterized in that: the hot water type lithium bromide absorption type low-temperature water chilling unit is a multi-section lithium bromide absorption type low-temperature water chilling unit or an overlapping lithium bromide absorption type low-temperature water chilling unit or a secondary generation secondary absorption type lithium bromide absorption type low-temperature water chilling unit.
4. The on-line detection density hot water type lithium bromide absorption low temperature water chilling unit according to claim 1 or 2, wherein the on-line detection density hot water type lithium bromide absorption low temperature water chilling unit is characterized in that: the driving waste heat of the hot water type lithium bromide absorption type low-temperature water chilling unit is hot water or heat conducting oil.
5. The on-line detection density hot water type lithium bromide absorption low temperature water chilling unit according to claim 1 or 2, wherein the on-line detection density hot water type lithium bromide absorption low temperature water chilling unit is characterized in that: the cooling water of the hot water type lithium bromide absorption low-temperature water chilling unit is connected in series.
6. The on-line detection density hot water type lithium bromide absorption low temperature water chilling unit according to claim 1 or 2, wherein the on-line detection density hot water type lithium bromide absorption low temperature water chilling unit is characterized in that: the cooling water of the hot water type lithium bromide absorption low-temperature water chilling unit is connected in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606510.8A CN109458751B (en) | 2018-12-27 | 2018-12-27 | On-line detection density hot water type lithium bromide absorption type low-temperature water chilling unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811606510.8A CN109458751B (en) | 2018-12-27 | 2018-12-27 | On-line detection density hot water type lithium bromide absorption type low-temperature water chilling unit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109458751A CN109458751A (en) | 2019-03-12 |
| CN109458751B true CN109458751B (en) | 2024-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811606510.8A Active CN109458751B (en) | 2018-12-27 | 2018-12-27 | On-line detection density hot water type lithium bromide absorption type low-temperature water chilling unit |
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Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1161437A (en) * | 1995-10-06 | 1997-10-08 | 株式会社日立制作所 | Absorption refrigerator and prodn. method thereof |
| CN1632421A (en) * | 2004-12-31 | 2005-06-29 | 江苏双良空调设备股份有限公司 | Lithium brominate absorptive-type refrigerator with absorption solution regulation and antifreeze device |
| CN1632420A (en) * | 2004-12-31 | 2005-06-29 | 江苏双良空调设备股份有限公司 | Lithium brominate absorptive-type refrigerator with cryogen steam regulation and antifreeze device |
| CN2757044Y (en) * | 2004-12-31 | 2006-02-08 | 江苏双良空调设备股份有限公司 | Lithium bromide absorptive refrigerator with coolant steam regulating anti-freezing device |
| CN2757043Y (en) * | 2004-12-31 | 2006-02-08 | 江苏双良空调设备股份有限公司 | Lithium bromide absorptive refrigerator with generator coolant steam regulating anti-freeze device |
| CN2864509Y (en) * | 2005-12-23 | 2007-01-31 | 江苏双良空调设备股份有限公司 | Secondary lithium bromide absorption heat pump set automatically adjusted with cold reagent water flow |
| CN102242982A (en) * | 2010-05-14 | 2011-11-16 | 荏原冷热系统株式会社 | Absorption heat pump |
| CN105444464A (en) * | 2015-12-25 | 2016-03-30 | 双良节能系统股份有限公司 | Smoke-type lithium bromide absorption type water chiller-heater unit for heating and normal temperature smoke exhaust |
| CN106482382A (en) * | 2016-11-14 | 2017-03-08 | 双良节能系统股份有限公司 | Direct combustion type first class lithium bromide absorptive heat pump unit with direct heating |
| CN209415825U (en) * | 2018-12-27 | 2019-09-20 | 双良节能系统股份有限公司 | A kind of on-line checking density hot water lithium bromide absorbing low-temperature cold water unit |
-
2018
- 2018-12-27 CN CN201811606510.8A patent/CN109458751B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1161437A (en) * | 1995-10-06 | 1997-10-08 | 株式会社日立制作所 | Absorption refrigerator and prodn. method thereof |
| CN1632421A (en) * | 2004-12-31 | 2005-06-29 | 江苏双良空调设备股份有限公司 | Lithium brominate absorptive-type refrigerator with absorption solution regulation and antifreeze device |
| CN1632420A (en) * | 2004-12-31 | 2005-06-29 | 江苏双良空调设备股份有限公司 | Lithium brominate absorptive-type refrigerator with cryogen steam regulation and antifreeze device |
| CN2757044Y (en) * | 2004-12-31 | 2006-02-08 | 江苏双良空调设备股份有限公司 | Lithium bromide absorptive refrigerator with coolant steam regulating anti-freezing device |
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| CN2864509Y (en) * | 2005-12-23 | 2007-01-31 | 江苏双良空调设备股份有限公司 | Secondary lithium bromide absorption heat pump set automatically adjusted with cold reagent water flow |
| CN102242982A (en) * | 2010-05-14 | 2011-11-16 | 荏原冷热系统株式会社 | Absorption heat pump |
| CN105444464A (en) * | 2015-12-25 | 2016-03-30 | 双良节能系统股份有限公司 | Smoke-type lithium bromide absorption type water chiller-heater unit for heating and normal temperature smoke exhaust |
| CN106482382A (en) * | 2016-11-14 | 2017-03-08 | 双良节能系统股份有限公司 | Direct combustion type first class lithium bromide absorptive heat pump unit with direct heating |
| CN209415825U (en) * | 2018-12-27 | 2019-09-20 | 双良节能系统股份有限公司 | A kind of on-line checking density hot water lithium bromide absorbing low-temperature cold water unit |
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| Publication number | Publication date |
|---|---|
| CN109458751A (en) | 2019-03-12 |
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