CN112197335A - Pipeline heat storage type instant heating type high-temperature water source heat pump set water heating system - Google Patents
Pipeline heat storage type instant heating type high-temperature water source heat pump set water heating system Download PDFInfo
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- CN112197335A CN112197335A CN202011281431.1A CN202011281431A CN112197335A CN 112197335 A CN112197335 A CN 112197335A CN 202011281431 A CN202011281431 A CN 202011281431A CN 112197335 A CN112197335 A CN 112197335A
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- heat
- heat storage
- water
- heat pump
- water source
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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
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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
- 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
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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
- 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
Abstract
The invention discloses a pipeline heat storage type instant heating type high-temperature water source heat pump set 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, so that the invention has no scaling and more stable and efficient operation; the tap water is directly supplied to the tail end after heat exchange, the system is simple and reliable, the investment is saved, and the problem of different sources of cold water and hot water is thoroughly solved; 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; the high-temperature water source heat pump can simultaneously refrigerate and heat, has high comprehensive energy efficiency, and is suitable for scenes with long cold time and hot water requirements.
Description
Technical Field
The invention relates to the technical field of heat pump water heating, in particular to a pipeline heat storage type instant heating type high-temperature water source heat pump set water heating 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, are inconvenient to carry, have high operation noise, and have serious scaling because the heat pump is directly contacted with tap water; 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, the heating coefficient is low, and the operation cost is increased.
In addition, a heat recovery unit is adopted in the prior art, the main function of the heat recovery unit is refrigeration, the heat recovery unit is an auxiliary function, the heat recovery unit generally operates only in the refrigeration season (5-10 months per year), the temperature of hot water produced by heat recovery is generally not more than 55 ℃, and the heat recovery unit still needs to be in an operating state when the hot water is not required to be produced, so that the operation cost is greatly increased.
Disclosure of Invention
According to the embodiment of the invention, the pipeline heat storage type instant heating type high-temperature water source heat pump set heating water system 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.
Further, the primary side heating module comprises a water source heat pump set and a heat storage pipeline combination;
the inlet of the water source heat pump set is communicated with the outlets of the primary sides of the plurality of heat exchangers, the outlet of the water source heat pump set is communicated with the inlet of the heat storage pipeline combination, and the outlet of the heat storage pipeline combination is respectively communicated with the inlets of the primary sides of the plurality of heat exchangers;
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.
Further, the water source heat pump unit is a high-temperature screw type water source heat pump unit.
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 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 pipelines are respectively communicated with inlets of secondary sides of the heat exchangers and are 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 water source heat pump set hot water system, 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, 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 secondary side heat supply module can be not provided with a hot water tank for storing water, so that the problem that bacteria such as legionella are easy to breed in the hot water tank is thoroughly solved; moreover, the pipeline is adopted for heat storage, so that not only is the purchasing cost reduced, but also the operating cost is reduced, and the operating efficiency is improved; meanwhile, the high-temperature water source heat pump can produce hot water during refrigeration, is high in comprehensive energy efficiency, is suitable for buildings with long cold time (such as 6-12 months long), is also suitable for scenes without air source heat pump mounting sites, and has hot water requirements.
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 of a pipe heat storage type instant heating type high-temperature water source heat pump set water heating system according to an embodiment of the present invention;
fig. 2 is a schematic diagram of a water heating system of a pipe heat storage type instant heating type high-temperature water source heat pump set, which is provided with a positive displacement heat exchanger 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 water source heat pump set heating 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 water source heat pump set hot water 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 heat supply module. In this embodiment, the heating module that once inclines is closed water system, not direct and running water contact, and the operation is more stable, high-efficient not scale deposit.
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; 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 water-source heat pump group 21 and a heat storage pipe combination 22, wherein an inlet of the water-source heat pump group 21 is communicated with outlets of the primary sides 11 of the plurality of heat exchangers 1, an outlet of the water-source heat pump group 21 is communicated with an inlet of the heat storage pipe combination 22, and outlets of the heat storage pipe combination 22 are respectively communicated with inlets of the primary sides 11 of the plurality of heat exchangers 1, so as to form a primary-side water circulation. Because the heat storage pipeline combination 22 is positioned at the water outlet of the water source heat pump group 21, the working efficiency of the water source heat pump group 21 is greatly improved. In this embodiment, the water source heat pump group 21 is a high-temperature screw water source heat pump group, wherein the number of the specifically-arranged high-temperature screw water source heat pumps is configured according to the heating capacity of 120% of the maximum daily design water consumption at the end; meanwhile, the high-temperature screw type water source heat pump unit can be used for preparing hot water while refrigerating, the cold and the heat are fully utilized, the comprehensive energy efficiency is up to more than 7.0, and the high-temperature screw type water source heat pump unit is very suitable for buildings with long cold time, such as hotels, hospitals, office buildings, factories and the like, with the cold time being up to 6-12 months, and is also very suitable for buildings without air source heat pump sites.
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 the expansion water tank (not shown in the figure) is communicated with the inlet of the water source heat pump set 21, and the expansion water tank is used for supplementing water to the water source heat pump set 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 12 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 the secondary sides 12 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, the secondary side heat supply module may also be provided with: the positive displacement heat exchangers 34 are arranged, the positive displacement heat exchangers 34 correspond to the heat exchangers 1 one by one, and each positive displacement heat exchanger 34 is arranged between an outlet of the secondary side 12 of the corresponding heat exchanger 1 and the hot water supply pipeline 31 and used for keeping the temperature of the hot water at the tail end so as to ensure the timely supply of the hot water at the tail end. The configuration is particularly suitable for ensuring the temperature stability of hot water by utilizing the existing heat storage resources in the energy-saving reconstruction of the existing building.
When the heat storage water heater is used, a temperature sensor is arranged on the heat storage pipeline, the temperature of the heat storage water in the heat storage pipeline is set according to the actual water temperature requirement of a user, the water source heat pump set 21 is started when the actual temperature is lower than the temperature, and the water source heat pump set is stopped when the actual temperature is higher than the temperature. Specifically, a plurality of heat pump start-stop control intervals can be set according to the setting condition of the high-temperature screw type water source heat pumps in the actual water source heat pump unit 21, each high-temperature screw type water source heat pump does not need to work simultaneously, the operation efficiency is further improved, and the operation cost is reduced.
In the above, referring to fig. 1 to 2, a pipeline heat storage type instant heating type high-temperature water source heat pump set heating 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 is not generated, 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 secondary side heat supply module can be not provided with a hot water tank for storing water, so that the problem that bacteria such as legionella are easy to breed in the hot water tank is thoroughly solved; moreover, the pipeline is adopted for heat storage, so that not only is the purchasing cost reduced, but also the operating cost is reduced, and the operating efficiency is improved; meanwhile, the high-temperature water source heat pump can produce hot water during refrigeration, is high in comprehensive energy efficiency, is suitable for buildings with long cold time (such as 6-12 months long), is also suitable for scenes without air source heat pump mounting sites, and has hot water requirements.
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 (6)
1. The utility model provides a pipeline heat accumulation type instant heating type high temperature water source heat pump unit 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 water source heat pump group heating water system according to claim 1, wherein the primary-side heating module comprises a combination of a water source heat pump group and a heat storage pipe;
the inlet of the water source heat pump set is communicated with the outlets of the primary sides of the plurality of heat exchangers, the outlet of the water source heat pump set 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 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 water source heat pump group heating water system according to claim 2, wherein the water source heat pump group is a high-temperature screw water source heat pump group.
4. The pipe-heat storage type instant heating type high-temperature water source heat pump group heating 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.
5. The pipe-heat storage type instant heating type high-temperature water source heat pump set heating water system according to claim 1, wherein the heat exchanger is a direct heating plate heat exchanger.
6. The pipe-heat storage type instant heating type high-temperature water source heat pump set heating 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 pipelines are respectively communicated with inlets of secondary sides of the heat exchangers and are 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 |
|---|---|---|---|
| CN202011281431.1A CN112197335A (en) | 2020-11-16 | 2020-11-16 | Pipeline heat storage type instant heating type high-temperature water source heat pump set water heating system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011281431.1A CN112197335A (en) | 2020-11-16 | 2020-11-16 | Pipeline heat storage type instant heating type high-temperature water source heat pump set water heating system |
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| CN112197335A true CN112197335A (en) | 2021-01-08 |
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| CN202011281431.1A Pending CN112197335A (en) | 2020-11-16 | 2020-11-16 | Pipeline heat storage type instant heating type high-temperature water source heat pump set water heating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197336A (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 air source heat pump heating water system |
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| JP2010223537A (en) * | 2009-03-25 | 2010-10-07 | Toshiba Carrier Corp | Heat pump hot water supply system |
| CN104180418A (en) * | 2014-08-13 | 2014-12-03 | 华电电力科学研究院 | Direct heat accumulation system for heat supply network and heat accumulation and release method for direct heat accumulation system |
| CN104596006A (en) * | 2015-01-15 | 2015-05-06 | 王全龄 | Comprehensive afterheat heating system for domestic hot water and swimming pool water |
| CN209196964U (en) * | 2018-09-18 | 2019-08-02 | 中信建筑设计研究总院有限公司 | A kind of double heat source series-parallel combined-type health hot water pipeline structures |
| CN210141608U (en) * | 2019-05-28 | 2020-03-13 | 中金新源（天津）科技有限公司 | Big difference in temperature heat pump heat accumulation heating system |
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2020
- 2020-11-16 CN CN202011281431.1A patent/CN112197335A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010223537A (en) * | 2009-03-25 | 2010-10-07 | Toshiba Carrier Corp | Heat pump hot water supply system |
| CN104180418A (en) * | 2014-08-13 | 2014-12-03 | 华电电力科学研究院 | Direct heat accumulation system for heat supply network and heat accumulation and release method for direct heat accumulation system |
| CN104596006A (en) * | 2015-01-15 | 2015-05-06 | 王全龄 | Comprehensive afterheat heating system for domestic hot water and swimming pool water |
| CN209196964U (en) * | 2018-09-18 | 2019-08-02 | 中信建筑设计研究总院有限公司 | A kind of double heat source series-parallel combined-type health hot water pipeline structures |
| CN210141608U (en) * | 2019-05-28 | 2020-03-13 | 中金新源（天津）科技有限公司 | Big difference in temperature heat pump heat accumulation heating system |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197336A (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 air source heat pump heating water system |
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Effective date of registration: 20210318 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. |
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