CN110043945A - The heating heat exchange box of phase-transition heat-storage - Google Patents
The heating heat exchange box of phase-transition heat-storage Download PDFInfo
- Publication number
- CN110043945A CN110043945A CN201810543822.2A CN201810543822A CN110043945A CN 110043945 A CN110043945 A CN 110043945A CN 201810543822 A CN201810543822 A CN 201810543822A CN 110043945 A CN110043945 A CN 110043945A
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- China
- Prior art keywords
- heat
- heat exchange
- salt plug
- salt
- phase
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- 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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Classifications
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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
- F24D15/00—Other domestic- or space-heating systems
- F24D15/02—Other domestic- or space-heating systems consisting of self-contained heating units, e.g. storage heaters
-
- 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 heating heat exchange box of phase-transition heat-storage, including the cylindrical cabinet being vertically arranged and it is arranged in the intracorporal more salt plugs of case, the top of cylindrical side wall is arranged in heat exchange water inlet, the direction of heat exchange water inlet is located at the tangential direction of cabinet cylindrical side wall, heat exchange box is provided with outlet pipe on central axes, the salt plug is internally provided with more thermal siphons, more thermal siphons are vertically arranged, the lower wall of salt plug is stretched out in the lower end of more thermal siphons, the part interconnection that salt plug is stretched out in more thermal siphon lower ends is integrated, constitute liquid refrigerant storage room, it is filled inside liquid refrigerant storage room equipped with liquid refrigerant, it is vacuum state inside thermal siphon and liquid refrigerant storage room.It is high that the present invention provides a kind of heat exchange efficiencies, is able to extend heat-exchanging water residence time in water tank, reduces heat exchange water outlet temperature, and can intuitively observe the high efficiency phase change heat storage tank of salt plug sealing state.
Description
Technical field
The present invention relates to a kind of Heat supply and heat exchange case, especially a kind of heating heat exchange box of phase-transition heat-storage belongs to heating equipment
Technical field.
Background technique
Phase-transition heat-storage heating is to utilize material when phase solid-liquid or liquid-gas change, and can absorb or release a large amount of latent heat
Feature and the heat storage carried out or release, compared to traditional alternating temperature heat accumulation process, the temperature of material is several in phase transition process
Remain unchanged, can be utilized in energy abundance in heating engineering in low-temperature phase-change material the heat storage in hot water is existed
In phase-change material, heat supply is carried out using the phase transformation heat release of phase-change material in energy shortages, is widely used in paddy at present
For hankering, i.e. paddy electricity is stored in phase-change material by night for electricity storage, and daytime is used in the heat accumulating type heat supplying process of heating.At present
The basic composition of common paddy electricity phase-transition heat-storage heating includes reflux pump, electrically heated boiler, heat exchange box, heating heat exchanger fin and control
Device, heat exchange box is interior to be arranged salt plug, and salt plug is interior filled with phase change heat storage material, and night use paddy electricity is added water by electrically heated boiler
Heat exchange box circulation is passed through after heat, phase change heat storage material is by solid-state after heat exchange the temperature inside the box reaches the phase transition temperature of phase change heat storage material
Mutually become liquid, absorb heat therebetween, then stop electric heating daytime, is exchanged heat using the heat stored in phase change heat storage material
Water in case heats.Heat exchange box is the core component in phase-transition heat-storage heating system, and currently used heat exchange box structure is
Multiple parallel salt plugs are placed equidistant in heat exchange box, heat exchange water inlet is arranged in the downside of heat exchange cabinet and perpendicular to heat exchange
The side wall of case, heat-exchanging water, which enters in heat exchange box, goes out heat exchange box weight with the water outlet after salt plug progress heat exchange on the upside of heat exchange cabinet
Newly enter grill pan stove heating, heat-exchanging water is substantially at advection state during this, and there are many water flow dead angle in heat exchange box, heat-exchanging water
Water flow short circuit is easily formed between import and heat exchange water out, heat-exchanging water residence time in water tank is short, and easily cause heat exchange not fill part,
Keep the temperature difference between import and outlet smaller, the higher recirculation water of water temperature can scatter and disappear largely in the approach for being back to boilers heated electrically
Heat；The pyroconductivity for the phase-change material filled inside existing salt plug is very low, and salt plug leans on paracentral phase-change material at work
Take a long time to can be only achieved operating temperature, and salt plug, since normal time service is under the condition of high temperature, phase-change material is in phase
Volume can also change when change, if salt plug cover not tight or salt plug ontology because hot water or phase-change material corrosion reveal,
It can not find that salt plug is revealed in time generally in the system of sealing state, and mostly phase-change material be inorganic salts or organic salt,
Middle many types all can in phase-transition heat-storage system pipeline and the equipment such as pump cause to corrode, salt plug leakage will be to whole system
Service life makes a big impact.The structure of heat exchange box and salt plug affects the overall heat exchange efficiency of heat exchange box in the prior art,
The cycle-index of heat-exchanging water is increased, and is not easy to find in time when salt plug leakage, therefore, how to improve the heat exchange effect of heat exchange box
Rate reduces the cycle-index of heat-exchanging water, reduces heat consumption of the recirculation water in circulating line, and prevents salt plug leakage to whole
The influence in a system equipment service life is urgent problem to be solved in the prior art.
Summary of the invention
It is an object of the invention to: a kind of heat exchange efficiency height is provided, heat-exchanging water residence time in water tank is able to extend, drops
Low heat exchange water outlet temperature, and can intuitively observe the heating heat exchange box of the phase-transition heat-storage of salt plug sealing state.
In order to achieve the above object, the technical solution adopted by the present invention are as follows: the heating heat exchange box of phase-transition heat-storage, including set vertically
The cylindrical cabinet set and it is arranged in the intracorporal more salt plugs of case, cylindrical box includes cylindrical side wall, case lid and bottom,
Heat exchange water inlet is provided on cabinet, the top of cylindrical side wall, the direction for the water inlet that exchanges heat is arranged in the heat exchange water inlet
Positioned at the tangential direction of cabinet cylindrical side wall, outlet pipe is provided on heat exchange box central axes, outlet pipe extends upward case lid,
Outlet pipe upper end is heat exchange water out, and outlet pipe is inserted into cabinet, and the lower end of outlet pipe is located at the lower part of cabinet, outlet pipe lower end
For outlet pipe water inlet, the heat exchange water out is connect with reflux pump；Salt plug includes salt plug side wall, lower wall and top cover, in salt plug
Portion is filled equipped with phase change heat storage material, and the salt plug is internally provided with more thermal siphons, more thermal siphons be vertically arranged and
It is threaded through inside phase change heat storage material, the lower wall of salt plug is stretched out in the lower end of more thermal siphons, and more thermal siphon lower ends are stretched out
The part interconnection of salt plug is integrated, and is constituted liquid refrigerant storage room, is filled inside liquid refrigerant storage room equipped with liquid refrigerant,
It is vacuum state inside thermal siphon and liquid refrigerant storage room；Further, in the more salt plugs and cylindrical box
Axis is arranged in parallel, and more salt plugs arrange in the shape of a spiral, and the opening direction of spiral is towards heat-exchanging water import direction；Further,
It is provided with observation panel on the case lid of the heat exchange box, the top cover of the salt plug is provided with the guide pillar hole of perforation top cover, inside salt plug
Sliding is provided with baffle, and sliding seal is provided between baffle and salt plug side wall, guide post straight up is provided on baffle,
Guide post upper end passes through guide pillar hole and wears outside salt plug, and compression spring, the pressure are provided between the baffle and salt plug top cover
Power spring is set on guide post, and the upper end of compression spring is pressed on salt plug top cover, and the lower end of compression spring is pressed on baffle,
Phase change heat storage material is offered on salt plug side wall and fills mouth, and phase change heat storage material fills the lower section that mouth is located at baffle；Further,
It is provided with interlayer in the cylindrical side wall of the cylindrical box, is filled in interlayer equipped with phase-change heat-storage material, cylindrical box
Outside is provided with adiabator layer.
Positive advantageous effects of the invention are: the water inlet that exchanges heat is arranged in the tangential direction of cabinet, heat-exchanging water
Tangentially enter cabinet, and the water inlet of outlet pipe is located at lower box, outlet pipe is connect with reflux pump, and heat-exchanging water is in cabinet
Flow in the shape of a spiral, increase residence time of the heat-exchanging water in heat exchange box, salt plug arrange in the shape of a spiral it is consistent with water (flow) direction,
Enhance heat transfer effect；Thermal siphon is provided with inside salt plug of the invention, it will be hot by the liquid refrigerant inside thermal siphon
It measures inside band to salt plug, realizes being evenly heated for salt plug inside phase change heat storage material, accelerate the speed of recycle heat, improve
Movable guide post is arranged in salt top end in heat exchange efficiency, and guide post bounces back in salt plug when salt plug is revealed, can be intuitive
It was found that the salt plug of leakage, the present invention due to enhancing heat exchange efficiency in salt plug, and by change exchange heat box structure increase it is whole
The heat exchange efficiency of a system, therefore the cycle-index of water can be effectively reduced, energy consumption is reduced, and reveal and check by salt plug
Device improves the operational reliability of whole system.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of one embodiment of the invention.
Fig. 2 is the salt plug distribution schematic diagram of one embodiment of the invention.
Fig. 3 is the salt plug structural schematic diagram of one embodiment of the invention.
Fig. 4 is the leakage-preventing structural schematic diagram in salt top end of one embodiment of the invention.
Specific embodiment
In order to more fully explain implementation of the invention, embodiment of the invention presented below, these embodiments are only
It is only not limited the scope of the invention to elaboration of the invention.
It is attached in the figure, it is marked as 2-1. cabinet in conjunction with attached drawing to the further details of explanation of the present invention；2-2. salt plug；2-
3. outlet pipe；2-4. fixed orifice plate；2-5. heat exchange water inlet；2-6. reflux pump；2-7. outlet pipe water inlet；2-8. liquid
State working medium storage room；2-9. guide post；2-10. observation panel；3-1. interlayer；3-2. adiabator layer；4-1. salt plug top cover；
4-2. baffle；4-3. phase change heat storage material fills mouth；4-4. thermal siphon；4-5. phase-change material fills room；5-1. pressure
Power spring.
It is as shown in the figure: the heating heat exchange box of phase-transition heat-storage, including cylindrical cabinet 2-1 and more salt plug 2-2, in cylinder
It is provided with interlayer 3-1 in the cylindrical side wall of shape cabinet, is filled in interlayer equipped with phase-change heat-storage material, is set on the outside of cylindrical box
It is equipped with adiabator layer 3-2, heat exchange water inlet 2-5 is provided on body side, the direction for the water inlet that exchanges heat is located at cylindrical box
The tangential direction of body is provided with outlet pipe 2-3 on the central axes of heat exchange box, and outlet pipe extends upward case lid, outlet pipe upper end
For the water out that exchanges heat, heat exchange water out is connect with reflux pump 2-6, and the outlet pipe water inlet 2-7 of the lower end of outlet pipe is located at cabinet
Lower part, the intracorporal salt plug of case is fixed in cabinet by fixed orifice plate 2-4, is provided with what multiple water supply streams passed through in fixed orifice plate
Water hole, as shown in Fig. 2, the axis parallel of more salt plugs and cylindrical box is arranged and arranges in the shape of a spiral, spiral is opened
Mouthful direction is towards heat-exchanging water import direction；Observation panel 2-10 is provided in the present embodiment on the case lid of heat exchange box, is set on observation panel
It is equipped with observation glass, the intracorporal salt plug situation of heat exchange box can be directly observed by observation panel, as shown in figure 4, in salt plug top cover
The guide pillar hole of perforation top cover is provided on 4-1, salt plug is internally provided with baffle 4-2, is provided with cunning between baffle and salt plug side wall
Dynamic seal, sliding seal can add polytetrafluoroethyl-ne using the elastomer of rubber type ring or other forms on its internal-and external diameter
The circular band of alkene filler, or using sliding seals such as commercially available lip-type packings, vertical lead is provided on the upside of baffle
Column 2-9, guide post upper end pass through guide pillar hole and wear outside salt plug, offer phase-transition heat-storage below the side wall overhead gage of salt plug
Material fills a mouthful 4-3, and compression spring 5-1 is arranged on guide post, and the upper end of compression spring is pressed on salt abacus, lower side pressure
It being located on baffle, vertical guide rod 2-9 is provided on the upside of baffle, guide rod upper end passes through guide rod hole and wears outside salt plug,
Phase change heat storage material is offered below the side wall overhead gage of salt plug and fills a mouthful 4-3, and compression spring 5-1 is arranged on guide rod,
The upper end of compression spring is pressed on salt abacus, and lower end is pressed on baffle, and the salt plug inner space of baffle lower part is phase transformation
Material fills room 4-5, and all phase transition temperatures can be used in the phase-change heat-storage material that phase-change material fills chamber interior filling in the present invention
Phase-change heat-storage material between 40-90 degree, such as sodium acetate, sodium phosphate or other phase-change materials, phase-change material is stored by phase transformation
Hot material, which fills a mouthful 4-3 and fills to set to phase-change material, fills interior, fills phase-change material after chamber interior keeps barotropic state
Sealing phase change heat storage material fills mouth, and pressure of the baffle inside salt plug is moved upward under pushing, and guide rod stretches out above salt plug,
In the case where salt plug is not revealed, guide rod keeps stretching out outside salt plug, and when salt plug is revealed, positive pressure is revealed in salt plug,
Guide rod moves downward under the action of self weight and spring, is reduced to inside salt plug, observes salt capital inside heat exchange box by observation panel
The guide rod situation in portion, that is, can determine whether salt plug is revealed, and can directly determine is which root is revealed, and operate pole
For simplicity；Salt plug is internally provided with more thermal siphon 4-4 in the present embodiment, and more thermal siphons are laid in phase-change material and fill
Dress is indoor, is parallel to each other and is vertically arranged between each siphon pipe, and the lower wall of salt plug, Duo Genre are stretched out in the lower end of more thermal siphons
The part interconnection that salt plug is stretched out in siphon pipe lower end is integrated, composition liquid refrigerant storage room 2-8, in liquid refrigerant storage room
Portion is filled equipped with liquid refrigerant, and thermal siphon and liquid refrigerant storage room inside are vacuum state；In heat exchange box energy storage work, add
Heat-exchanging water after heat is entered in heat exchange box by the water inlet that exchanges heat, and liquid refrigerant stores indoor liquid after reaching evaporating temperature
By thermal evaporation, due to remaining that vacuum state, steam rise to thermal siphon upper layer in pipe, heat is released successively on the way,
Steam regelation is at drop, the phase change heat storage material around heat thermal siphon discharged therebetween, devaporation at
Drop continues to be evaporated, then be cooled, form a week due to being come back in liquid refrigerant storage room by gravity
And the circulation renewed, achieve the purpose that heat inside phase change heat storage material.
The tangential direction of cabinet is arranged in the water inlet that exchanges heat by the present invention, and heat-exchanging water tangentially enters cabinet, and outlet pipe
Water inlet be located at lower box, outlet pipe is connect with reflux pump, and heat-exchanging water flows in the shape of a spiral in cabinet, increases heat exchange
Residence time of the water in heat exchange box, salt plug arrange consistent with water (flow) direction in the shape of a spiral, enhance heat transfer effect；Of the invention
It is provided with thermal siphon inside salt plug, heat is brought to salt plug by the liquid refrigerant inside thermal siphon, realizes salt
Being evenly heated for column inside phase change heat storage material, accelerates the speed of recycle heat, improves heat exchange efficiency；By in salt capital
Movable guide post is arranged in end, and guide post bounces back in salt plug when salt plug is revealed, and can intuitively find the salt plug of leakage, this hair
It is bright and to increase by changing heat exchange box structure the heat exchange efficiency of whole system due to enhancing heat exchange efficiency in salt plug, because
The cycle-index of water can be effectively reduced in this, reduces energy consumption, and reveal check device by salt plug and improve whole system
Operational reliability.
After the embodiment that the present invention will be described in detail, one of ordinary skilled in the art is clearly understood that, is not being taken off
It is lower from above-mentioned claim and spirit to carry out various change and modify, it is all according to the technical essence of the invention to the above reality
Any simple modification, equivalent change and modification made by example are applied, belong to the range of technical solution of the present invention, and the present invention is also not
It is limited to the embodiment of example in specification.
Claims (4)
1. the heating heat exchange box of phase-transition heat-storage including the cylindrical cabinet being vertically arranged and is arranged in the intracorporal more salt of case
Column, cylindrical box include cylindrical side wall, case lid and bottom, heat exchange water inlet are provided on cabinet, it is characterised in that: described
The top of cylindrical side wall is arranged in heat exchange water inlet, and the direction for the water inlet that exchanges heat is located at the tangent line side of cabinet cylindrical side wall
To being provided with outlet pipe on heat exchange box central axes, outlet pipe extends upward case lid, and outlet pipe upper end is heat exchange water out, out
Water pipe is inserted into cabinet, and the lower end of outlet pipe is located at the lower part of cabinet, and outlet pipe lower end is outlet pipe water inlet, the heat-exchanging water
Outlet is connect with reflux pump；Salt plug includes salt plug side wall, lower wall and top cover, is filled inside salt plug equipped with phase change heat storage material, described
Salt plug is internally provided with more thermal siphons, and more thermal siphons are vertically arranged and are threaded through inside phase change heat storage material, more
The lower wall of salt plug is stretched out in the lower end of root thermal siphon, and the part interconnection that salt plug is stretched out in more thermal siphon lower ends is integrated,
Liquid refrigerant storage room is constituted, is filled inside liquid refrigerant storage room equipped with liquid refrigerant, thermal siphon and liquid refrigerant storage room
Inside is vacuum state.
2. the heating heat exchange box of phase-transition heat-storage according to claim 1, it is characterised in that: the more salt plugs and cylinder
The axis parallel of cabinet is arranged, and more salt plugs arrange in the shape of a spiral, and the opening direction of spiral is towards heat-exchanging water import direction.
3. the heating heat exchange box of phase-transition heat-storage according to claim 1, it is characterised in that: set on the case lid of the heat exchange box
Be equipped with observation panel, the top cover of the salt plug is provided with the guide pillar hole of perforation top cover, and salt plug internal slide is provided with baffle, baffle with
It is provided with sliding seal between salt plug side wall, guide post straight up is provided on baffle, guide post upper end is worn across guide pillar hole
It is set to outside salt plug, compression spring is provided between the baffle and salt plug top cover, the compression spring is set on guide post, pressure
The upper end of power spring is pressed on salt plug top cover, and the lower end of compression spring is pressed on baffle, offers phase transformation on salt plug side wall
Heat-storing material fills mouth, and phase change heat storage material fills the lower section that mouth is located at baffle.
4. the heating heat exchange box of phase-transition heat-storage according to claim 1, it is characterised in that: the cylinder of the cylindrical box
It is provided with interlayer in shape side wall, is filled in interlayer equipped with phase-change heat-storage material, is provided with adiabator layer on the outside of cylindrical box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810543822.2A CN110043945A (en) | 2018-05-31 | 2018-05-31 | The heating heat exchange box of phase-transition heat-storage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810543822.2A CN110043945A (en) | 2018-05-31 | 2018-05-31 | The heating heat exchange box of phase-transition heat-storage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110043945A true CN110043945A (en) | 2019-07-23 |
Family
ID=67273203
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810543822.2A Pending CN110043945A (en) | 2018-05-31 | 2018-05-31 | The heating heat exchange box of phase-transition heat-storage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110043945A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111278255A (en) * | 2019-12-31 | 2020-06-12 | 南京理工大学 | Phase change heat storage device based on condensation heat transfer and key parameter determination method thereof |
-
2018
- 2018-05-31 CN CN201810543822.2A patent/CN110043945A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111278255A (en) * | 2019-12-31 | 2020-06-12 | 南京理工大学 | Phase change heat storage device based on condensation heat transfer and key parameter determination method thereof |
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Application publication date: 20190723 |