CN112197336A - Pipeline heat storage type instant heating type high-temperature air source heat pump heating water system - Google Patents
Pipeline heat storage type instant heating type high-temperature air source heat pump heating water system Download PDFInfo
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- CN112197336A CN112197336A CN202011281456.1A CN202011281456A CN112197336A CN 112197336 A CN112197336 A CN 112197336A CN 202011281456 A CN202011281456 A CN 202011281456A CN 112197336 A CN112197336 A CN 112197336A
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- heat
- heat pump
- hot water
- air source
- heat storage
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D17/00—Domestic hot-water supply systems
- F24D17/02—Domestic hot-water supply systems using heat pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D19/00—Details
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2200/00—Heat sources or energy sources
- F24D2200/12—Heat pump
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24D—DOMESTIC- OR SPACE-HEATING SYSTEMS, e.g. CENTRAL HEATING SYSTEMS; DOMESTIC HOT-WATER SUPPLY SYSTEMS; ELEMENTS OR COMPONENTS THEREFOR
- F24D2220/00—Components of central heating installations excluding heat sources
- F24D2220/10—Heat storage materials, e.g. phase change materials or static water enclosed in a space
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Heat-Pump Type And Storage Water Heaters (AREA)
Abstract
The invention discloses a pipeline heat storage type instant heating type high-temperature air source heat pump hot water system, which comprises: the heat exchangers are connected in parallel, and each heat exchanger comprises a primary side and a secondary side which are isolated from each other and can exchange heat; the primary side heating module is respectively communicated with the primary side of each heat exchanger; and the secondary side heat supply module is respectively communicated with the secondary side of each heat exchanger. The primary side of the invention is not directly contacted with tap water, scaling is avoided, and the operation is more stable and efficient; tap water is directly supplied to the tail end after heat exchange through the heat exchanger, the system is simple and reliable, the investment is saved, the problem of different sources of cold water and hot water is thoroughly solved, and the tail end water is not suddenly cooled and suddenly heated; the heat pump combination realizes modular configuration, the configuration is flexible, and the operation is more stable; meanwhile, the pipeline is adopted for heat storage, so that the purchasing cost is reduced, the working efficiency of the heat pump is improved, and the operating cost is greatly reduced.
Description
Technical Field
The invention relates to the technical field of heat pump hot water production, in particular to a pipeline heat storage type instant heating type high-temperature air source heat pump hot water production system.
Background
The heat pump water heating technology is commonly used in places such as hotels, hospitals, office buildings, factories and the like, and the heat pump water heating technology adopted in the prior art adopts open stainless steel water tank water storage and then conveys the water to each terminal through a constant-pressure variable-frequency water feeding pump, so that the multi-terminal hot water requirements of the places such as the hotels, the hospitals, the office buildings, the factories and the like can be basically met. However, the open stainless steel water tank and the constant-pressure variable-frequency water supply system have large occupied area, high cost and large investment, and the heat pump is directly contacted with tap water, so that the scale formation is serious, and the service life of the heat pump unit is influenced; because the hot water constant-pressure variable-frequency water supply system and the tap water constant-pressure variable-frequency water supply system are different in source, the pressure of cold and hot water at the tail end is often unstable and unbalanced, and the phenomenon of sudden cooling and sudden heating occurs when the tail end uses water; in addition, because the open stainless steel water tank is arranged at the water inlet of the air source heat pump, when the temperature of the open stainless steel water tank is constant (for example, 55 ℃), the water inlet temperature of the air source heat pump is actually the temperature of the open stainless steel water tank, and the water outlet temperature reaches 60 ℃, so that the heating performance coefficient is low, and the operation cost is increased.
Disclosure of Invention
According to an embodiment of the present invention, there is provided a pipe heat storage type instant heating type high temperature air source heat pump hot water system, including:
the heat exchangers are connected in parallel, and each heat exchanger comprises a primary side and a secondary side which are isolated from each other and can exchange heat;
the primary side heating module is respectively communicated with the primary side of each heat exchanger;
and the secondary side heat supply module is respectively communicated with the secondary side of each heat exchanger.
Further, the primary side heating module comprises a heat pump combination and a heat storage pipeline combination;
the inlet of the heat pump combination is communicated with the outlets of the primary sides of the plurality of heat exchangers, the outlet of the heat pump combination is communicated with the inlet of the heat storage pipeline combination, and the outlets of the heat storage pipeline combination are respectively communicated with the inlets of the primary sides of the plurality of heat exchangers;
the heat pump combination comprises a plurality of groups of heat pump groups which are connected in parallel, and each group of heat pump group comprises a plurality of air source heat pumps;
the heat storage pipeline combination comprises a plurality of groups of heat storage pipeline groups, and each group of heat storage pipeline group comprises a plurality of heat storage pipelines.
Furthermore, a plurality of air source heat pumps of each group of heat pump groups are connected in parallel or in series-parallel.
Further, the air source heat pump is a high-temperature air source heat pump.
Furthermore, the heat storage pipeline groups are connected in parallel or in series-parallel, and the heat storage pipelines of each heat storage pipeline group are connected in parallel or in series-parallel.
Further, the primary-side heating module further includes: and the expansion water tank is communicated with an inlet of the heat pump combination and is used for supplementing water for the heat pump combination at a constant pressure.
Further, the heat exchanger is a directly-heated plate heat exchanger.
Further, the secondary side heat supply module includes:
the hot water supply pipeline is respectively communicated with outlets on the secondary sides of the plurality of heat exchangers and is used for directly supplying hot water to the tail end;
the hot water return pipeline is respectively communicated with inlets of secondary sides of the plurality of heat exchangers and is used for recovering hot water with unused tail ends;
and the hot water replenishing pipeline is communicated with inlets of the secondary sides of the plurality of heat exchangers respectively and is used for replenishing water to the hot water supply pipeline.
According to the pipeline heat storage type instant heating type high-temperature air source heat pump heating water system disclosed by the embodiment of the invention, the primary side and the secondary side heat supply modules are mutually isolated, so that the primary side is not directly contacted with tap water any more, scaling is avoided, a heat pump combination and a heat exchanger can be protected, and the operation is more stable and efficient; tap water directly exchanges heat with the primary side heating module through the heat exchanger and is directly supplied to the tail end, a new hot water constant-pressure variable-frequency water supply system is not needed, the system is simple and reliable, the investment is saved, the problem of different sources of cold and hot water is thoroughly solved, and the tail end water is not suddenly cooled and suddenly heated; the heat pump combination realizes modular configuration, the configuration is flexible, and the operation is more stable; meanwhile, the pipeline is used for heat storage, so that the purchasing cost is reduced, the operation efficiency is improved, hot water in the hot water tank is not required to be stored, and the problem that bacteria such as legionella are easy to breed in the hot water tank is thoroughly solved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and are intended to provide further explanation of the claimed technology.
Drawings
Fig. 1 is a schematic diagram illustrating a principle of a pipe heat storage type instant heating type high-temperature air source heat pump hot water system according to an embodiment of the present invention;
fig. 2 is a schematic diagram illustrating the principle of modifying an existing project with a positive displacement heat exchanger for a pipeline heat storage type instant heating type high-temperature air source heat pump heating water system according to an embodiment of the invention.
Detailed Description
The present invention will be further explained by describing preferred embodiments of the present invention in detail with reference to the accompanying drawings.
First, a pipe heat storage type instant heating type high-temperature air source heat pump hot water system according to an embodiment of the present invention will be described with reference to fig. 1 to 2, which is used in a hotel, a hospital, an office building, a factory, and the like, and has a wide application range.
As shown in fig. 1, the pipe heat storage type instant heating type high-temperature air source heat pump water heating system according to the embodiment of the present invention includes a plurality of heat exchangers 1, a primary side heating module, and a secondary side heating module. In this embodiment, the primary side heating module is a closed water system, is not directly contacted with tap water, does not scale, can protect the heat exchanger and the heat pump unit of the primary side heating module, and is more stable and efficient in operation.
Specifically, as shown in fig. 1, a plurality of heat exchangers 1 are connected in parallel, each heat exchanger 1 includes a primary side 11 and a secondary side 12 which are isolated from each other and can perform heat exchange, the primary side heating module is respectively communicated with the primary side 11 of each heat exchanger 1, the secondary side heating module is respectively communicated with the secondary side 12 of each heat exchanger 1, tap water of the secondary side heating module is heated by the heat exchangers 1 and then directly supplied to the tail ends of water, a new hot water constant-pressure variable-frequency water supply system is not needed, the system is simple and reliable, investment is saved, the problem of different sources of cold and hot water is thoroughly solved, and the tail end water cannot be suddenly cooled and; therefore, through the arrangement of the heat exchanger 1, hot water storage water of the hot water tank can be not configured any more, and the problem that bacteria such as legionella are easy to breed in the hot water tank in the prior art is thoroughly solved. In the present embodiment, the heat exchanger 1 is a directly-heated plate heat exchanger, and the specific setting number is based on: the water resistance is within 2 meters of water column, according to the maximum design hour water consumption, under the working condition of the whole year, the water supplement of tap water can be directly heated to more than 50 ℃.
Specifically, as shown in fig. 1, the primary-side heating module includes a heat pump assembly 21 and a heat storage pipe assembly 22, wherein an inlet of the heat pump assembly 21 is communicated with outlets of the primary sides of the plurality of heat exchangers 1, an outlet of the heat pump assembly 21 is communicated with an inlet of the heat storage pipe assembly 22, and outlets of the heat storage pipe assembly 22 are respectively communicated with inlets of the primary sides of the plurality of heat exchangers 1, so as to form a water cycle of the primary side. Because the heat storage pipeline combination 22 is arranged at the water outlet of the heat pump combination 21, the working efficiency of the heat pump combination 21 is greatly improved, for example, when the temperature of 55 ℃ is stored, the actual water inlet temperature of the heat pump combination 21 is 50 ℃, the temperature of the water outlet is 55 ℃, and in the prior art, the actual water outlet temperature of the heat pump is about 60 ℃, so that the working efficiency and the heating coefficient of the heat pump system can be improved by more than 10%.
Further, as shown in fig. 1, the heat pump assembly 21 has a plurality of heat pump groups 211 connected in parallel, each heat pump group 211 has a plurality of air source heat pumps 2111, the air source heat pumps 2111 of each group can be connected in parallel or in series and parallel, and the air source heat pumps 2111 of each group are configured in a modular configuration according to the actual situation on site, the specific amount is configured according to 120% of the maximum daily design water consumption, so that the configuration is flexible, and the operation is more stable. In this embodiment, the air source heat pump 2111 is a high temperature air source heat pump.
Further, as shown in fig. 1, the heat storage pipe assembly 22 has a plurality of heat storage pipe sets 221, each heat storage pipe set 221 includes a plurality of heat storage pipes, the heat storage pipe sets 221 may be connected in parallel, series, or series-parallel, and the heat storage pipes of each set may also be connected in parallel, series, or series-parallel. In this embodiment, the heat storage pipeline adopts ordinary carbon steel pipeline heat accumulation, and every length is 3~12m, and the diameter is DN500-DN2000, adopts heavy-calibre welding, and concrete quantity according to actual hot water peak hour water consumption design can, area is little, arranges in a flexible way, need not the stainless steel water tank, saves the investment by a wide margin.
Further, the primary side heating module is further provided with: and an expansion water tank (not shown in the figure) communicated with the inlet of the heat pump combination 21, wherein the water circularly heated at the primary side in the primary side heating module comes from the expansion water tank, and the expansion water tank is used for supplying water for the heat pump combination 21 at a constant pressure.
Specifically, as shown in fig. 1, the secondary side heat supply module has: a hot water supply line 31, a hot water return line 32, and a hot water replenishing line 33.
Further, as shown in fig. 1, hot water supply lines 31 are respectively communicated with outlets of the secondary sides of the plurality of heat exchangers 1 for directly supplying hot water to the ends; the hot water return pipeline 32 is respectively communicated with inlets of secondary sides of the plurality of heat exchangers 1 and is used for recovering hot water with unused tail ends and keeping the hot water stored in each tail end pipeline in a circulating state, so that the phenomenon that the temperature is greatly reduced due to the fact that the hot water does not flow in the pipelines for a long time and the hot water needs to be discharged for a long time when used is avoided, on one hand, water resources are wasted, and on the other hand, user experience is influenced; the hot water supply line 33 is connected to the inlets of the secondary sides of the plurality of heat exchangers 1, and supplies water to the hot water supply line 31.
Further, as shown in fig. 2, in some existing projects, a plurality of volumetric heat exchangers 34 are provided, so as to facilitate the reconstruction of the existing projects and utilize the existing heat storage resources, therefore, the volumetric heat exchangers 34 are incorporated into the secondary side heat supply module according to the embodiment of the present invention, the plurality of volumetric heat exchangers 34 are in one-to-one correspondence with the plurality of heat exchangers 1, each volumetric heat exchanger 34 is disposed between the outlet of the secondary side of the corresponding heat exchanger 1 and the hot water supply pipeline 31, and the existing heat storage resources can be utilized to ensure the temperature stability of hot water in the energy saving reconstruction of the existing building.
When the heat storage pipe is used, a temperature sensor is installed on the heat storage pipe, the temperature of the heat storage water in the heat storage pipe is set according to the actual water use temperature requirement of a user, when the actual temperature is lower than the temperature, the air source heat pump 2111 is started, and when the actual temperature is higher than the temperature, the air source heat pump 2111 is stopped. Specifically, a plurality of heat pump start-stop control intervals can be set according to the grouping condition of the actual air source heat pumps 2111, and each air source heat pump 2111 does not need to work simultaneously, so that the operation efficiency is further improved, and the operation cost is reduced.
In the above, referring to fig. 1-2, a pipeline heat storage type instant heating type high-temperature air source heat pump hot water system according to an embodiment of the present invention is described, in which a primary side and a secondary side heat supply module are isolated from each other, so that the primary side is no longer in direct contact with tap water, scaling does not occur, a heat pump combination and a heat exchanger can be protected, and operation is more stable and efficient; tap water directly exchanges heat with the primary side heating module through the heat exchanger and is directly supplied to the tail end, a new hot water constant-pressure variable-frequency water supply system is not needed, the system is simple and reliable, the investment is saved, the problem of different sources of cold and hot water is thoroughly solved, and the tail end water is not suddenly cooled and suddenly heated; the heat pump combination realizes modular configuration, the configuration is flexible, and the operation is more stable; meanwhile, the pipeline is used for heat storage, so that the purchasing cost is reduced, the operation efficiency is improved, hot water can be stored without the hot water tank, and the problem that bacteria such as legionella are easy to breed in the hot water tank is thoroughly solved.
It should be noted that, in the present specification, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
While the present invention has been described in detail with reference to the preferred embodiments, it should be understood that the above description should not be taken as limiting the invention. Various modifications and alterations to this invention will become apparent to those skilled in the art upon reading the foregoing description. Accordingly, the scope of the invention should be determined from the following claims.
Claims (8)
1. The utility model provides a pipeline heat accumulation type instant heating type high temperature air source heat pump heating water system which characterized in that contains:
the heat exchangers are connected in parallel, and each heat exchanger comprises a primary side and a secondary side which are isolated from each other and can exchange heat;
the primary side heating module is respectively communicated with the primary side of each heat exchanger;
and the secondary side heat supply module is respectively communicated with the secondary side of each heat exchanger.
2. The pipe-heat storage type instant heating type high-temperature air source heat pump hot water system according to claim 1, wherein the primary-side heating module comprises a heat pump assembly and a heat storage pipe assembly;
the inlet of the heat pump combination is communicated with the outlets of the primary sides of the plurality of heat exchangers, the outlet of the heat pump combination is communicated with the inlet of the heat storage pipeline combination, and the outlets of the heat storage pipeline combination are respectively communicated with the inlets of the primary sides of the plurality of heat exchangers;
the heat pump combination comprises a plurality of groups of heat pump groups which are connected in parallel, and each group of heat pump groups comprises a plurality of air source heat pumps;
the heat storage pipeline combination comprises a plurality of groups of heat storage pipeline groups, and each group of heat storage pipeline groups comprises a plurality of heat storage pipelines.
3. The pipe-heat storage type instant heating type high-temperature air source heat pump hot water system according to claim 2, wherein a plurality of air source heat pumps in each heat pump group are connected in parallel or in series-parallel.
4. The pipe heat storage type instant heating type high-temperature air source heat pump hot water system according to claim 2 or 3, wherein the air source heat pump is a high-temperature air source heat pump.
5. The pipe heat storage type instant heating type high-temperature air source heat pump hot water system according to claim 2, wherein the plurality of heat storage pipe groups are connected in parallel or in series-parallel, and the plurality of heat storage pipes in each of the plurality of heat storage pipe groups are connected in parallel or in series-parallel.
6. The pipe-heat storage type instant heating type high-temperature air source heat pump hot water system according to claim 2, wherein the primary-side heating module further comprises: and the expansion water tank is communicated with an inlet of the heat pump combination and is used for supplementing water for the heat pump combination at a constant pressure.
7. The pipe heat storage type instant heating type high-temperature air source heat pump hot water system according to claim 1, wherein the heat exchanger is a directly-heated plate heat exchanger.
8. The pipe-heat storage type instant heating type high-temperature air source heat pump hot water system according to claim 1, wherein the secondary-side heat supply module comprises:
the hot water supply pipeline is respectively communicated with outlets on the secondary sides of the plurality of heat exchangers and is used for directly supplying hot water to the tail end;
the hot water return pipeline is respectively communicated with inlets of secondary sides of the plurality of heat exchangers and is used for recovering hot water with unused tail ends;
and the hot water replenishing pipeline is communicated with inlets of the secondary sides of the plurality of heat exchangers respectively and is used for replenishing water to the hot water supply pipeline.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011281456.1A CN112197336A (en) | 2020-11-16 | 2020-11-16 | Pipeline heat storage type instant heating type high-temperature air source heat pump heating water system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011281456.1A CN112197336A (en) | 2020-11-16 | 2020-11-16 | Pipeline heat storage type instant heating type high-temperature air source heat pump heating water system |
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| CN104848376A (en) * | 2014-11-22 | 2015-08-19 | 青岛同创节能环保工程有限公司 | Hot water heat exchanger unit |
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| CN110220237A (en) * | 2019-06-21 | 2019-09-10 | 北京新能乐业科技有限公司 | Net for air-source heat pump units and heat accumulating type electric heater unit combining heating system and method |
| CN110410841A (en) * | 2019-07-10 | 2019-11-05 | 洛阳双瑞特种装备有限公司 | A kind of phase-changing energy-storing Combined heating system based on electric heating pump |
| CN112197335A (en) * | 2020-11-16 | 2021-01-08 | 上海有隆工程勘测技术有限公司 | Pipeline heat storage type instant heating type high-temperature water source heat pump set water heating system |
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2020
- 2020-11-16 CN CN202011281456.1A patent/CN112197336A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101358784A (en) * | 2008-09-24 | 2009-02-04 | 天津大学 | Solar thermal storage and geothermal heat pump group system |
| JP2010223537A (en) * | 2009-03-25 | 2010-10-07 | Toshiba Carrier Corp | Heat pump hot water supply system |
| CN101949558A (en) * | 2010-09-08 | 2011-01-19 | 中国科学院青岛生物能源与过程研究所 | Life hot water heat pump system using waste heat of circulating cooling water |
| CN102759194A (en) * | 2012-08-06 | 2012-10-31 | 温筱茜 | Heat pump system using tap water as water source |
| CN104848376A (en) * | 2014-11-22 | 2015-08-19 | 青岛同创节能环保工程有限公司 | Hot water heat exchanger unit |
| CN107859093A (en) * | 2017-12-15 | 2018-03-30 | 中建三局第三建设工程有限责任公司 | Core Walls Structure climbing formwork for construction pipe band fire-fighting water storage system and its construction method |
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Effective date of registration: 20210319 Address after: No.88, West Huangxi street, LvXiang Town, Jinshan District, Shanghai, 201518 (Lvxiang economic Park) Applicant after: Shanghai Nanyu energy saving Engineering Co.,Ltd. Address before: Room 206, building 9, 517 xinchuansha Road, Baoshan District, Shanghai, 200940 Applicant before: Shanghai Youlong Engineering Survey Technology Co.,Ltd. |