CN208108245U - A kind of coal changes TV university capacity low temperature phase change heat reservoir and central heating system - Google Patents
A kind of coal changes TV university capacity low temperature phase change heat reservoir and central heating system Download PDFInfo
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- CN208108245U CN208108245U CN201820257421.6U CN201820257421U CN208108245U CN 208108245 U CN208108245 U CN 208108245U CN 201820257421 U CN201820257421 U CN 201820257421U CN 208108245 U CN208108245 U CN 208108245U
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Abstract
The utility model discloses be related to a kind of coal to change TV university capacity low temperature phase change heat reservoir and central heating system,Heat reservoir includes cabinet,Set on the thermal storage unit of box house,Set on box house for carrying out the heat exchange unit that heat exchanges with thermal storage unit,Thermal storage unit includes multiple groups phase-transition heat-storage body,Heat exchange unit includes being threaded through multiple groups heat-exchange tube inside multiple groups phase-transition heat-storage body and with media inlet and media outlet respectively,Heat reservoir further includes be connected to the import of multiple groups heat-exchange tube with external medium to be exchanged into medium/device and the medium/device out for being connected to the outlet of multiple groups heat-exchange tube to heat supply user with outside,The considerable low-temperature phase-change heat accumulation system,Carrier using the phase-transition heat-storage body of phase-change material production as storage thermal energy,With traditional central heating system using hot water compared with heat accumulation carrier,The phase-transition heat-storage body of phase-change material production has storage density high,Heat storage capacity is strong,Good heat-transfer,The advantages such as heat-energy losses are small.
Description
Technical field
The utility model relates to boiler heating field, in particular to a kind of coal change TV university capacity low temperature phase change heat reservoir and
Central heating system.
Background technique
Currently, living standards of the people increasingly improve the development for having driven heat supply process, it is new to accelerate comprehensive utilization of energy
The continuous innovation of technology upgrades.Central heating refers to steam, hot water as caused by central heat source, supplies a city by pipe network
The mode of heat needed for city (town) or partial region production, heating and life.Central heating is that the basis of modern city is set
It one of applies and a critical facility of urban public utilities.Central heating can not only provide stable, reliable Gao Pin to city
Position heat source, improves the people's livelihood, and can be energy saving, reduces municipal pollution, is conducive to urban beautification, effectively utilizes city
The useful space, so, central heating has significant economic benefit and social benefit.
Traditional central heating system generallys use hot aqueous medium's heat accumulation, using the hot water heat storage can for being loaded with hot water come into
The storage of row heat, but hot water storage density is low, heat storage capacity is weak, heat transfer property is poor, and volume change is big when hot water heat accumulation,
And hot water heat accumulation tank volume is big, take up a large area, thermal stability is poor, heat-energy losses are larger, and operation and maintenance are relatively complicated, multiple
Miscellaneous, operation expense is high, also seriously affects the heating effect of heating system.
Phase-change heat accumulation system uses phase-change material heat accumulation, it is advantageous that power grid peak load shifting may be implemented, improves power generation
The utilization rate of equipment, and the heating cost of the heating saving user of night cheap electricity is made full use of simultaneously, in central heating field
It has a wide range of applications.Check that existing relevant utility model and utility model patent, patent CN103376010A disclose
A kind of phase-change heat accumulation system, is connected in parallel on hot coal conveyance conduit by least one phase-change heat accumulation unit and is composed；Patent
CN104154789A discloses a kind of phase-change heat accumulation system of thermal insulation, and insulation material is filled up between shell of tank and inner casing
Material.Although two above patent improves phase-change heat accumulation system in terms of capacity usage ratio, power system capacity and heat exchange
Area is all little, it is difficult to meet central heating especially large area heat supply the needs of.Patent CN107388337A discloses one kind
Distribution type high efficient energy conservation phase-change heat accumulation system, power system capacity can be by heat storage units and series-parallel adjustment, and pass through PLC
Controller's intellectualization control system.However, system setting is more complicated, when concrete application and the connection of central heating system and
There are certain difficulties in terms of operation and maintenance.
Utility model content
In order to solve problems in the prior art, the utility model provides a kind of coal and changes TV university capacity low temperature phase change heat accumulation system
System.
In order to solve the above technical problems, the utility model takes following technical scheme：
A kind of coal changes TV university capacity low temperature phase change heat reservoir, and heat reservoir includes cabinet, the accumulation of heat set on box house
Unit, the heat exchange unit for exchanging with thermal storage unit progress heat set on box house, thermal storage unit includes multiple groups phase
Become heat storage, heat exchange unit include be threaded through respectively it is inside multiple groups phase-transition heat-storage body and more with media inlet and media outlet
Group heat-exchange tube, heat reservoir further include the import of multiple groups heat-exchange tube is connected to outside medium to be exchanged into medium/device and
The outlet of multiple groups heat-exchange tube is gone out into medium/device to what heat supply user was connected to external.
Preferably, every group of heat-exchange tube is made of a root canal or end to end more root canals, and, a root canal or end to end
More root canals in the horizontal direction and/or vertical direction is back and forth interspersed in phase-transition heat-storage body back and forth.Heat-exchange tube is in heat storage
Repeatedly intert back and forth, so that it may so that heat storage is in heated or heat supply, heat transfer it is more uniform, improve heat transfer efficiency.
Preferably, in a rectangular parallelepiped shape, heat-exchange tube is distributed along the width direction of cabinet in column-shaped cabinet, along the height of cabinet
Direction distribution in a row-shaped.
Preferably, the cabinet of heat reservoir includes the first cabinet for accommodating thermal storage unit and heat exchange unit, the first cabinet
Including being located at the outer support shell in outside and being located at inner support shell on the inside of outer support shell, thermal storage unit and heat exchange unit are contained in interior
The inside in the space that supporting shell is enclosed.
Preferably, heat reservoir further includes set on the insulating layer between outer support shell and inner support shell.
Preferably, the cabinet of heat reservoir further includes accommodating into medium/device and the second cabinet of medium/device out, the second cabinet
It is fixedly connected with the first cabinet, heat reservoir further includes on the second cabinet for by the of the second cabinet open or close
One chamber door and the second chamber door, the first chamber door and the second chamber door are rotatably connected on the second cabinet.Such design, need using
When the utility model heat reservoir when, the first chamber door and the second chamber door can be opened, by exterior line and the heat reservoir
Connection when not in use removes exterior line, and the first chamber door and the second chamber door are closed, installation and maintenance workers
Make extremely convenient.
It preferably, include the first corner, by the inlet communication of the first corner and multiple groups heat-exchange tube into medium/device
Into matchmaker's pipeline and set on into multiple into matchmaker's valve on matchmaker's pipeline, medium/device includes the second corner, by the second corner out
Multiple matchmaker's valves out with matchmaker's pipeline out of the outlet of multiple groups heat-exchange tube and on matchmaker's pipeline out.
Further, phase-transition heat-storage body uses composite phase-change heat-storage material.
According to the utility model, the capacity of the considerable low-temperature phase-change heat accumulation system is 100GJ~500GJ, and phase transformation stores
The phase transition temperature of hot body is 60~120 DEG C.
The utility model further relates to a kind of coal and changes electric central heating system, and heating system includes grill pan furnace system, soft water system
System, hold over system, heating network system and user side, hold over system include the heat reservoir that multiple the utility model are described.
The utility model is due to taking above technical scheme, compared with prior art, have the advantages that：
The coal of the utility model changes TV university capacity low temperature phase change heat reservoir, the phase-transition heat-storage body made of phase-change material
As storage thermal energy carrier, with traditional central heating system using hot water as heat accumulation carrier compared with, phase-change material make phase
Becoming heat storage has the advantages such as storage density is high, heat storage capacity is strong, good heat-transfer, and heat-energy losses are small.The storage of the utility model
Hot systems have unit volume storage density big compared with traditional heat storage can, the small advantage of overall storage volume is meeting
On the basis of identical heat demand, the heat reservoir occupied space of the utility model is smaller, and in specific application can be with
It selects appropriate number of heat reservoir to be applied in combination according to specific heat demand, can easily be docked to central heating system,
It is extremely convenient in terms of operation and maintenance.In addition, the heat reservoir of the utility model passes through multiple groups phase-transition heat-storage body and difference
It is interspersed in being equipped with for the multiple groups heat-exchange tube inside the multiple groups phase-transition heat-storage body, can further improve absorption and discharge
The efficiency of thermal energy.
Detailed description of the invention
It, below will be to required in embodiment description in order to illustrate more clearly of the technical scheme in the embodiment of the utility model
Attached drawing to be used is briefly described, it should be apparent that, the accompanying drawings in the following description is only some realities of the utility model
Example is applied, it for those of ordinary skill in the art, without creative efforts, can also be according to these attached drawings
Obtain other attached drawings.
Fig. 1 is the structural schematic diagram of the utility model heat reservoir；
Fig. 2 be Fig. 1 in A-A to schematic cross-sectional view；
Fig. 3 is the schematic cross-sectional view of B-B direction in Fig. 1；
Fig. 4 be Fig. 1 in C-C to schematic cross-sectional view；
Wherein, appended drawing reference includes：1, the first cabinet；2, the second cabinet；11, phase-transition heat-storage body；12, heat-exchange tube；13,
Outer support shell；14, inner support shell；15, insulating layer；21, the first corner；22, into matchmaker's pipeline；23, into matchmaker's valve；31, second
Corner；32, go out matchmaker's pipeline；33, go out matchmaker's valve；201, the first chamber door；202, the second chamber door.
Specific embodiment
In order to make those skilled in the art better understand the scheme of the utility model, below in conjunction with the utility model reality
The attached drawing in example is applied, the technical scheme in the utility model embodiment is clearly and completely described, it is clear that described
Embodiment is only the embodiment of the utility model a part, instead of all the embodiments.Based on the reality in the utility model
Example is applied, every other embodiment obtained by those of ordinary skill in the art without making creative efforts is all answered
When the range for belonging to the utility model protection.
It should be noted that the specification and claims of the utility model and term " first " in above-mentioned attached drawing,
" second " etc. is to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that in this way
The data used are interchangeable under appropriate circumstances, so that the embodiments of the present invention described herein can be in addition at this
In illustrate or description those of other than sequence implement.In addition, term " includes " and " having " and their any deformation, meaning
Figure be to cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, device, product or equipment
Those of be not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for these processes,
The intrinsic other step or units of method, product or equipment.
Embodiment 1
It in one embodiment of the utility model, provides a kind of coal and changes TV university capacity low temperature phase change heat reservoir, store up
Hot systems include cabinet, set on box house thermal storage unit, set on box house be used for and thermal storage unit carry out heat friendship
The heat exchange unit changed, thermal storage unit include three groups of phase-transition heat-storage bodies 11, and heat exchange unit includes being threaded through three groups of phase transformations respectively
(the coil pipe caliber of heat-exchange tube 12 is for inside heat storage 11 and with media inlet and media outlet three groups of heat-exchange tubes 12
DN20, and heat-exchange tube 12 is made of galvanized steel plain sheet), heat reservoir further include by the import of three groups of heat-exchange tubes 12 and it is external to
Medium of exchange connection goes out medium/device to what heat supply user was connected to external into medium/device and by the outlet of three groups of heat-exchange tubes 12.
Specifically, cabinet is whole in a rectangular parallelepiped shape, and the cabinet includes accommodate thermal storage unit and heat exchange unit first
Second cabinet 2 of cabinet 1 and the receiving being fixedly connected with the first cabinet 1 medium/device into medium/device and out, three groups of phase-transition heat-storages
Body 11 is extended along the length direction of the first cabinet 1 and is distributed in the width direction, and every group of heat-exchange tube 12 is made of a root canal,
And a root canal is back and forth interspersed in phase-transition heat-storage body 11 back and forth along the length direction and vertical direction of the first cabinet 1, that is, heat
The width direction that pipe 12 is exchanged along the first cabinet 1 is distributed in column-shaped, along the short transverse distribution in a row-shaped of the first cabinet 1.Heat is handed over
Pipe 12 is changed repeatedly to intert back and forth in heat storage, so that it may so that heat storage is in heated or heat supply, heat transfer more
It is even, improve heat transfer efficiency.
Further, the first cabinet 1 includes positioned at the outer support shell 13 in outside and positioned at 13 inside inner support of outer support shell
Shell 14, thermal storage unit and heat exchange unit are contained in the inside in the space that inner support shell 14 is enclosed.Heat reservoir further includes
Insulating layer 15 between outer support shell 13 and inner support shell 14.Insulating layer 15 is made of mineral wool and/or calcium silicate board with microporous.Heat accumulation
System further includes being used on the second cabinet 2 by the first chamber door 201 of 2 open or close of the second cabinet and the second chamber door
202, the first chamber door 201 and the second chamber door 202 are rotatably connected on the second cabinet 2.Such design, when need to use this reality
When with novel heat reservoir, the first chamber door 201 and the second chamber door 202 can be opened, by exterior line and the heat reservoir
Connection when not in use removes exterior line, and the first chamber door 201 and the second chamber door 202 are closed, installation and
Maintenance work is extremely convenient.
It include the first corner 21, by the import of the first corner 21 and three groups of heat-exchange tubes 12 into medium/device in this example
Connection into matchmaker's pipeline 22 and set on into multiple into matchmaker's valve 23 on matchmaker's pipeline 22, medium/device includes the second corner out
31, the outlet of the second corner 31 and three groups of heat-exchange tubes 12 is gone out into matchmaker's pipeline 32 and on matchmaker's pipeline 32 out
Multiple matchmaker's valves 33 out.
The composite phase-change heat-storage material as shown in table 1 below using performance parameter of phase-transition heat-storage body 11 in this example, which can
It is commercially available.
1 composite phase-change heat-storage material performance parameter of table
Embodiment 2
This example provides a kind of coal and changes electric central heating system comprising grill pan furnace system, soft water system, hold over system, confession
Hot pipe network system and user side, grill pan furnace system, soft water system, heating network system and user side are all made of this field and routinely set
It sets, herein without repeating.The main improvement of the system is the design of hold over system.
Hold over system includes multiple heat reservoirs as described in Example 1 in this example.
The course of work of central heating system is as follows：
When filling heat, 120 DEG C of hot water that electric boiler generates are discharged with heat storage can after pipe network and exchange heat in a plate swap-in row,
115 DEG C of hot water carry out filling heat to heat accumulating in heat reservoir after heat exchange；When heat release, 50 DEG C of low-temperature return waters of user side flow through electronic
Valve is shunted, and a part, which flows into heat storage pool, carries out heat exchange, and the low-temperature return water of high-temperature tempering and user side carries out mixed liquid extremely
65℃。
With hot water heating project, total 300,000 square meter of heating area, and for need heating in 24 hours：
According to existing design, accumulation of heat water pot water flow 200Nm3/ h, heat accumulation time 10h, water tank pass in and out 60 DEG C of water temperature difference.
Then total 60 × 200 × 10 × 4.2 × 1000/106=504GJ of quantity of heat storage of 10 accumulation of heat water pots；Required phase-change heat-storage material quality
504 330 × 1000=1527t of ÷；The heat reservoir that 5 sets of the utility model need to be used, considers 5% volume balance：Each change
1.6 5 × 1.05=200.4Nm of ÷ of thermal volume=1527 ÷3, total occupied area is 180m2, hot water is used in the prior art
Total occupied area of accumulation of heat is 456m2, after the heat reservoir of the utility model, area occupied is greatly reduced.
In conclusion the coal of the utility model changes TV university capacity low temperature phase change heat reservoir, using phase-change material production
Phase-transition heat-storage body as storage thermal energy carrier, with traditional central heating system using hot water compared with heat accumulation carrier, phase transformation material
The phase-transition heat-storage body of material production has the advantages such as storage density is high, heat storage capacity is strong, good heat-transfer, and heat-energy losses are small.This reality
Have unit volume storage density big compared with traditional heat storage can with novel heat reservoir, small excellent of overall storage volume
Point, i.e., on the basis of meeting identical heat demand, the heat reservoir occupied space of the utility model is smaller, and specific
Appropriate number of heat reservoir can be selected to be applied in combination according to specific heat demand in, can easily be docked to concentration
Heating system, it is extremely convenient in terms of operation and maintenance.In addition, the heat reservoir of the utility model passes through multiple groups phase-transition heat-storage
Body is equipped with the multiple groups heat-exchange tube that is respectively interposed inside the multiple groups phase-transition heat-storage body, can further improve suction
Receive and discharge the efficiency of thermal energy.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, all practical at this
Within novel spirit and principle, any modification, equivalent replacement, improvement and so on should be included in the guarantor of the utility model
Within the scope of shield.
Claims (8)
1. a kind of coal changes TV university capacity low temperature phase change heat reservoir, including cabinet, set on the box house thermal storage unit, set
In the box house for carrying out the heat exchange unit that heat exchanges with the thermal storage unit, the thermal storage unit includes more
Group phase-transition heat-storage body, it is characterised in that：The heat exchange unit includes being threaded through inside phase-transition heat-storage body described in multiple groups respectively
And the multiple groups heat-exchange tube with media inlet and media outlet, the heat reservoir further includes by the import of heat-exchange tube described in multiple groups
What is be connected to external medium to be exchanged is connected to outside to heat supply user into medium/device and by the outlet of heat-exchange tube described in multiple groups
Go out medium/device.
2. considerable low-temperature phase-change heat accumulation system according to claim 1, it is characterised in that：Heat-exchange tube described in every group by
One root canal or end to end more root canals are constituted, and, a root canal or end to end more root canals are in the horizontal direction and/or perpendicular
Histogram to being back and forth interspersed in the phase-transition heat-storage body back and forth.
3. considerable low-temperature phase-change heat accumulation system according to claim 1, it is characterised in that：The cabinet is in cuboid
Shape, the heat-exchange tube is distributed along the width direction of the cabinet in column-shaped, along the distribution in a row-shaped of the short transverse of the cabinet.
4. considerable low-temperature phase-change heat accumulation system according to claim 1, it is characterised in that：The cabinet of the heat reservoir
The first cabinet including accommodating the thermal storage unit and the heat exchange unit, first cabinet include the outer branch positioned at outside
It supports shell and is located at inner support shell on the inside of the outer support shell, the thermal storage unit and the heat exchange unit are contained in the interior branch
The inside in the space that support shell is enclosed.
5. considerable low-temperature phase-change heat accumulation system according to claim 4, it is characterised in that：The heat reservoir further includes
Insulating layer between the outer support shell and inner support shell.
6. considerable low-temperature phase-change heat accumulation system according to claim 4, it is characterised in that：The cabinet of the heat reservoir
Further include accommodate it is described into medium/device and out the second cabinet of medium/device, second cabinet are fixedly connected with the first cabinet, institute
State heat reservoir further include on second cabinet for by the first chamber door of the second cabinet open or close and
Second chamber door, first chamber door and the second chamber door are rotatably connected on second cabinet.
7. considerable low-temperature phase-change heat accumulation system according to claim 1, it is characterised in that：It is described into medium/device include the
One corner, by the inlet communication of heat-exchange tube described in first corner and multiple groups into matchmaker's pipeline and be set to it is described into
It is multiple into matchmaker's valve on matchmaker's pipeline, it is described go out medium/device include the second corner, will be described in second corner and multiple groups
The outlet of heat-exchange tube goes out matchmaker's pipeline and multiple matchmaker's valves out on matchmaker's pipeline out.
8. a kind of coal changes electric central heating system, the heating system includes grill pan furnace system, soft water system, hold over system, confession
Hot pipe network system and user side, it is characterised in that：The hold over system includes described in multiple any one of claims 1 to 7
Heat reservoir.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820257421.6U CN208108245U (en) | 2018-02-13 | 2018-02-13 | A kind of coal changes TV university capacity low temperature phase change heat reservoir and central heating system |
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| CN201820257421.6U CN208108245U (en) | 2018-02-13 | 2018-02-13 | A kind of coal changes TV university capacity low temperature phase change heat reservoir and central heating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240675A (en) * | 2018-02-13 | 2018-07-03 | 天津大学 | A kind of coal changes TV university capacity low temperature phase change heat reservoir and central heating system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240675A (en) * | 2018-02-13 | 2018-07-03 | 天津大学 | A kind of coal changes TV university capacity low temperature phase change heat reservoir and central heating system |
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