CN212657776U - Electric heat accumulation warm air supply device coupled with vapor compression heat pump - Google Patents
Electric heat accumulation warm air supply device coupled with vapor compression heat pump Download PDFInfo
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- CN212657776U CN212657776U CN202021788099.3U CN202021788099U CN212657776U CN 212657776 U CN212657776 U CN 212657776U CN 202021788099 U CN202021788099 U CN 202021788099U CN 212657776 U CN212657776 U CN 212657776U
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- 238000010438 heat treatment Methods 0.000 claims abstract description 46
- 238000009413 insulation Methods 0.000 claims abstract description 11
- 238000004321 preservation Methods 0.000 claims description 19
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 6
- 150000003839 salts Chemical class 0.000 claims description 5
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- 239000000395 magnesium oxide Substances 0.000 claims description 3
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- 239000011810 insulating material Substances 0.000 claims 1
- 230000005611 electricity Effects 0.000 abstract description 20
- 230000008878 coupling Effects 0.000 abstract description 12
- 238000010168 coupling process Methods 0.000 abstract description 12
- 238000005859 coupling reaction Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 4
- 238000005485 electric heating Methods 0.000 abstract description 4
- 238000004146 energy storage Methods 0.000 abstract 1
- 239000012774 insulation material Substances 0.000 description 6
- 239000011232 storage material Substances 0.000 description 3
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/14—Thermal energy storage
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Abstract
The embodiment of the utility model provides an electric heat accumulation warm braw feeding device with steam compression heat pump coupling relates to heat energy technical field. The heat-storage device comprises a heat-insulation cavity, a vapor compression heat pump and a heat-storage medium arranged in the heat-insulation cavity, wherein the heat-storage medium is connected with external power supply equipment through a heating element, the heating element heats in a valley electricity stage, the heating element stops heating in a peak electricity stage, the heat-insulation cavity is provided with an air inlet and an air outlet, the vapor compression heat pump is arranged at the air inlet, and external air passes through the heat-storage medium after passing through a condenser of the vapor compression heat pump and then is discharged from the air outlet. The electric heat storage warm air supply device coupled with the steam compression heat pump uses off-peak electricity to heat a heat storage medium for energy storage, and then cuts off the electricity for heat supply in the stage of peak electricity, thereby saving electric energy; the outside air passes through the condenser with lower temperature and then passes through the heat storage medium with higher temperature, thereby realizing the cascade utilization of heat energy and improving the electric heating effect.
Description
Technical Field
The utility model relates to a heat energy technical field especially relates to an electric heat accumulation warm braw feeding device with steam compression heat pump coupling.
Background
With the rapid development of the power industry, more and more power station systems emerge in China. During the power consumption peak period, the load is reduced, so that a large amount of off-peak electricity is remained, the power product is characterized in that production, supply and marketing are completed simultaneously, and the large amount of off-peak electricity is remained, so that the waste of power resources is caused, and the energy conservation and the environmental protection are not facilitated. Therefore, the off-peak electricity and the peak electricity adopt different electricity prices to urge people to use electricity by staggering peaks, the energy utilization rate is improved, and the waste is reduced.
In cold winter, the room needs hot air for heating; for industrial operations such as drying, a large amount of hot air is also required. At present, the mode that often adopts is heating in the air conditioning room or other electric heating modes heating. However, these devices mostly adopt a real-time heating mode, and cannot realize off-peak power utilization, so that the heating cost is high.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides an electric heat accumulation warm braw feeding device with steam compression heat pump coupling for solve among the prior art the defect that the warm braw supply cost is high, realize the power consumption of staggering, reduction in production cost.
The embodiment of the utility model provides an electric heat accumulation warm braw feeding device with steam compression heat pump coupling, place in including heat preservation cavity, steam compression heat pump in heat preservation cavity's heat accumulation medium, the heat accumulation medium passes through heating element and links to each other with external power supply equipment, heating element heats in the low ebb electricity stage, heating element stops heating in the peak electricity stage, heat preservation cavity is equipped with air inlet and gas outlet, steam compression heat pump installs the air inlet, the outside air process behind steam compression heat pump's the condenser process heat accumulation medium then follows the gas outlet is discharged.
According to the utility model discloses an electric heat accumulation warm braw feeding device with steam compression heat pump coupling of embodiment, steam compression heat pump is including continuous condenser, compressor, evaporimeter and choke valve in order, the condenser is installed in the heat preservation cavity the condenser with fill up between the heat accumulation medium and establish the heat preservation.
According to the utility model discloses an electric heat accumulation warm braw feeding device with steam compression heat pump coupling of embodiment, heating element's one end is installed inside the heat accumulation medium, heating element's the other end stretches out the heat preservation cavity.
According to the utility model discloses an electric heat accumulation warm braw feeding device with vapor compression heat pump coupling, heating element is a plurality of.
According to the utility model discloses an electric heat accumulation warm braw feeding device with steam compression heat pump coupling of embodiment, the heat preservation cavity includes outer wall and inner wall, the outer wall is located the outside of inner wall the inner wall with the accommodation space intussuseption that forms between the outer wall is filled with insulation material.
According to the utility model discloses an electric heat accumulation warm braw feeding device with steam compression heat pump coupling of embodiment, any kind in magnesia brick, steel ball, fused salt and the paraffin is adopted to the heat accumulation medium.
According to the utility model discloses an electric heat accumulation warm braw feeding device with steam compression heat pump coupling of embodiment, the heat accumulation medium will the heat preservation cavity separates for left cavity and right cavity, the air inlet with the gas outlet is laid respectively left cavity with right cavity.
According to the utility model discloses an electric heat accumulation warm braw feeding device with steam compression heat pump coupling of embodiment, fixed mounting has the base in the heat preservation cavity, the heat accumulation medium piles up on the base.
According to the utility model discloses an electric heat accumulation warm braw feeding device with steam compression heat pump coupling of embodiment, the air inlet is located the bottom and the orientation of heat preservation cavity the base sets up, the gas outlet is located the play gas side of heat accumulation medium and corresponding to the base sets up.
The embodiment of the utility model provides an electric heat accumulation warm air supply device coupled with a vapor compression heat pump, which uses off-peak electricity to heat air, and then supplies heat in a high-peak electricity stage, thus effectively saving electric energy; the steam compression type heat pump is installed at the air inlet, external air firstly passes through the condenser with lower temperature and then passes through the heat storage medium with higher temperature, the cascade utilization of heat energy is realized, and the electric heating effect is improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of an electric heat storage warm air supply device coupled to a vapor compression heat pump according to an embodiment of the present invention.
Reference numerals:
10. a heat preservation cavity; 11. an air inlet; 12. an air outlet; 13. an outer wall; 14. an inner wall; 15. A thermal insulation material; 20. a vapor compression heat pump; 21. a condenser; 22. a compressor; 23. an evaporator; 24. a throttle valve; 30. a thermal storage medium; 40. a heating element; 50. a heat-insulating layer; 60. A base.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
In the description of the embodiments of the present invention, it should be noted that the terms "first" and "second" are used for clearly indicating the numbering of the product parts and do not represent any substantial difference unless explicitly stated or limited otherwise. The directions of "up", "down", "left" and "right" are all based on the directions shown in the attached drawings. The specific meaning of the above terms in the embodiments of the present invention can be understood by those skilled in the art according to specific situations.
The structure of the electric heat storage warm air supply apparatus coupled to the vapor compression heat pump according to the embodiment of the present invention will be described with reference to fig. 1.
As shown in fig. 1, the electric heat storage warm air supply device coupled with a vapor compression heat pump according to the embodiment of the present invention includes a heat preservation chamber 10, a vapor compression heat pump 20, and a heat storage medium 30 placed in the heat preservation chamber 10. The heat storage medium 30 is connected to an external power supply device via the heating element 40, the external power supply device is electrically connected to the heating element 40, and the heat storage medium 30 is heated by the heating element 40 to store heat in the heat storage medium 30. The heat preservation cavity 10 is provided with an air inlet 11 and an air outlet 12, and the steam compression type heat pump 20 is installed at the air inlet 11. The outside air enters from the air inlet 11, passes through the condenser 21 of the vapor compression heat pump 20 and the heat storage medium 30 in this order, and is discharged from the air outlet 12. Wherein the heating element 40 heats during the low-peak period and the heating element 40 stops heating during the high-peak period.
When the heat storage device is used, in a valley electricity stage, the heating element 40 continuously heats the heat storage medium 30, converts electric energy into heat energy and stores the heat energy in the heat storage medium 30, the condenser 21 continuously releases heat, and after entering from the air inlet 11, external air firstly passes through the condenser 21 of the steam compression type heat pump 20 to be heated and then passes through the heat storage medium 30 to be heated into high-temperature air, and finally is discharged from the air outlet 12; in the peak electricity stage, the heating element 40 stops heating, the vapor compression heat pump 20 can continue to operate or stop working, and the outside air is discharged after passing through the condenser 21 with a lower temperature and the heat storage medium 30 with a higher temperature in sequence, so that the off-peak electricity is used for storing energy, the utilization rate of the electric energy is improved, and the heating cost is reduced.
The embodiment of the utility model provides an electric heat accumulation warm air supply device coupled with a steam compression heat pump, which uses off-peak electricity to heat the heat accumulation medium 30, and then the heating element 40 stops heating in the peak electricity stage to supply heat by the heat accumulation medium 30, thus effectively saving electric energy; the steam compression heat pump 20 is installed at the air inlet 11, and external air passes through the condenser 21 with a low temperature and then passes through the heat storage medium 30 with a high temperature, so that the gradient utilization of heat energy is realized, and the electric heating effect is improved.
The vapor compression heat pump 20 includes a condenser 21, a compressor 22, an evaporator 23, and a throttle valve 24 connected in series. As shown in fig. 1, the condenser 21 is located inside the insulating chamber 10, and the compressor 22, the evaporator 23 and the throttle valve 24 are located outside the insulating chamber 10. In order to avoid irreversible heat loss caused by heat transfer from the high temperature heat storage medium 30 to the lower temperature condenser 21, an insulating layer 50 is disposed between the condenser 21 and the heat storage medium 30. The heat insulation layer 50 is made of heat insulation materials such as glass wool or rock wool.
Wherein, one end of the heating element 40 is installed inside the heat storage medium 30, and the other end of the heating element 40 extends out of the heat preservation cavity 10. As shown in fig. 1, the heating element 40 extends transversely through the entire thermal storage medium 30 and extends through the insulating cavity 10 to the outside of the insulating cavity 10 for connection to the electrical leads of an external power supply device.
In addition to any of the above embodiments, the heating element 40 may be provided in plurality. A plurality of heating elements 40 are arranged in parallel to facilitate connection to electrical leads of an external power supply. Of course, the plurality of heating elements 40 may be arranged in different directions, for example, some of the heating elements 40 are arranged in the transverse direction, and other heating elements 40 are arranged in the longitudinal direction, so that the heat storage medium 30 is heated by the plurality of heating elements 40 at the same time, and the heat storage medium 30 stores a large amount of heat quickly, and the temperature is raised quickly.
The heat insulation cavity 10 comprises an outer wall 13 and an inner wall 14, the outer wall 13 is located on the outer side of the inner wall 14, and a containing space formed between the inner wall 14 and the outer wall 13 is filled with a heat insulation material 15. As shown in fig. 1, the inner wall 14 and the outer wall 13 are connected to each other to form a certain accommodating space therebetween, and the accommodating space is filled with a thermal insulation material 15 to prevent heat from being diffused outward, thereby improving the utilization rate of heat energy. The thermal insulation material 15 may be any one or a combination of more of polyester foam, glass wool and rock wool, and the embodiment of the present invention is not limited in this respect.
In the embodiment of the present invention, the heat storage medium 30 is made of solid heat storage materials such as magnesium bricks and steel balls, or phase-change heat storage materials such as molten salt and paraffin, and has high heat storage density. For example, the thermal storage medium 30 is formed by stacking a plurality of magnesia bricks or steel blocks. For example, the heat storage medium 30 is a high-temperature molten salt, and the high-temperature molten salt is stored in a case-like structure. Of course, a thermochemical or adsorptive heat storage material may be used as the heat storage medium 30.
As shown in fig. 1, the heat storage medium 30 divides the insulating cavity 10 into a left chamber and a right chamber, and the air inlet 11 and the air outlet 12 are respectively arranged in the left chamber and the right chamber to ensure that the air entering the insulating cavity 10 passes through the heat storage medium 30 before being exhausted to sufficiently absorb heat. For example, the air inlet 11 may be disposed in the left chamber, and correspondingly, the air outlet 12 may be disposed in the right chamber; as another example, the inlet port 11 is disposed in the right chamber and the outlet port 12 is disposed in the left chamber. The vapor compression heat pump 20 is installed at the air inlet 11 to ensure that the temperature of the external air is initially raised through the condenser 21 after entering the air inlet, and then is finally raised through the heat storage medium 30, so that the heat utilization rate and the air heating effect are improved. Specifically, the left chamber and the right chamber may be the same or different in size, and the left and right distinction is only used to distinguish the two chambers, and no orientation limitation is made. After entering from the air inlet 11, the outside air is converted into high temperature air by absorbing heat through the heat storage medium 30, and then is discharged from the air outlet 12.
Specifically, as shown in fig. 1, a base 60 is fixedly installed in the thermal insulation cavity 10, and the thermal storage medium 30 is disposed on the base 60. The heat storage medium 30 can abut against the top of the heat preservation cavity 10, and a certain gap can be reserved for the heat storage medium 30 to expand with heat and contract with cold. The thermal storage medium 30 is connected to the base 60 to divide the thermal insulation chamber 10 into two chambers.
Wherein, the condenser 21, the compressor 22, the evaporator 23 and the throttle valve 24 are connected in sequence through connecting pipes, respectively. The connecting pipe connecting the condenser 21 and the compressor 22 passes through the wall surface of the insulating chamber 10, the connecting pipe connecting the condenser 21 and the throttle valve 24 also passes through the wall surface of the insulating chamber 10, and the intake port 11 is provided in the region between the two connecting pipes.
In the embodiment of the present invention, the air inlet 11 is located at the bottom of the thermal insulation cavity 10, and the air outlet 12 is arranged corresponding to the base 60. An air inlet fan can be arranged at the air inlet 11, and an air outlet fan can be arranged at the air outlet 12. The air taken in from the air inlet 11 flows upward from the bottom, passes through the condenser 21 and the thermal storage medium 30 in order, and is discharged from the air outlet 12 located on the other side of the thermal storage medium 30. The air outlet 12 is provided corresponding to the base 60, so that the high temperature air passing through the thermal storage medium 30 is discharged after being sufficiently mixed, thereby preventing a local high temperature.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention in its corresponding aspects.
Claims (9)
1. The electric heat storage warm air supply device is characterized by comprising a heat preservation cavity, a steam compression type heat pump and a heat storage medium arranged in the heat preservation cavity, wherein the heat storage medium is connected with external power supply equipment through a heating element, the heating element heats at a valley power stage, the heating element stops heating at a peak power stage, the heat preservation cavity is provided with an air inlet and an air outlet, the steam compression type heat pump is arranged at the air inlet, and outside air passes through a condenser of the steam compression type heat pump, then passes through the heat storage medium and then is discharged from the air outlet.
2. The electric thermal storage warm air supply apparatus coupled to a vapor compression heat pump according to claim 1, wherein the vapor compression heat pump includes a condenser, a compressor, an evaporator, and a throttle valve connected in sequence, the condenser is installed in the thermal insulation cavity, and an insulation layer is provided between the condenser and the thermal storage medium.
3. The electric hot-air storage supply apparatus coupled to a vapor compression heat pump according to claim 1, wherein one end of the heating element is installed inside the heat storage medium, and the other end of the heating element protrudes out of the insulating chamber.
4. The electrical storage heater supply apparatus coupled to a vapor compression heat pump according to claim 3, wherein the heating element is plural.
5. The electrical heat storage warm air supply device coupled with a vapor compression heat pump according to any one of claims 1 to 4, characterized in that the heat-insulating chamber includes an outer wall and an inner wall, the outer wall is located outside the inner wall, and an accommodating space formed between the inner wall and the outer wall is filled with a heat-insulating material.
6. The electric heat storage warm air supply device coupled with a vapor compression heat pump according to any one of claims 1 to 4, characterized in that the heat storage medium employs any one of magnesia bricks, steel balls, molten salt, and paraffin.
7. The electric heat storage warm air supply device coupled with a vapor compression heat pump according to any one of claims 1 to 4, characterized in that the heat storage medium divides the holding chamber into a left chamber and a right chamber, and the air inlet and the air outlet are respectively arranged in the left chamber and the right chamber.
8. The electric thermal storage heater supply apparatus coupled with a vapor compression heat pump according to any one of claims 1 to 4, wherein a base is fixedly mounted in the insulated cavity, and the thermal storage medium is stacked on the base.
9. The electric thermal storage heater supply apparatus coupled to a vapor compression heat pump according to claim 8, wherein the air inlet is located at a bottom of the thermal insulation chamber and is provided toward the pedestal, and the air outlet is located on an air outlet side of the thermal storage medium and is provided in correspondence with the pedestal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021788099.3U CN212657776U (en) | 2020-08-24 | 2020-08-24 | Electric heat accumulation warm air supply device coupled with vapor compression heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021788099.3U CN212657776U (en) | 2020-08-24 | 2020-08-24 | Electric heat accumulation warm air supply device coupled with vapor compression heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212657776U true CN212657776U (en) | 2021-03-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021788099.3U Active CN212657776U (en) | 2020-08-24 | 2020-08-24 | Electric heat accumulation warm air supply device coupled with vapor compression heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212657776U (en) |
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2020
- 2020-08-24 CN CN202021788099.3U patent/CN212657776U/en active Active
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