CN115539925A - Circulation heat exchange system and heat storage equipment - Google Patents

Circulation heat exchange system and heat storage equipment Download PDF

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Publication number
CN115539925A
CN115539925A CN202211058731.2A CN202211058731A CN115539925A CN 115539925 A CN115539925 A CN 115539925A CN 202211058731 A CN202211058731 A CN 202211058731A CN 115539925 A CN115539925 A CN 115539925A
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CN
China
Prior art keywords
heat storage
heat exchange
storage medium
solid particle
heat
Prior art date
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.)
Pending
Application number
CN202211058731.2A
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Chinese (zh)
Inventor
周秀红
姚宣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guoneng Longyuan Environmental Protection Co Ltd
Original Assignee
Guoneng Longyuan Environmental Protection Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Guoneng Longyuan Environmental Protection Co Ltd filed Critical Guoneng Longyuan Environmental Protection Co Ltd
Priority to CN202211058731.2A priority Critical patent/CN115539925A/en
Publication of CN115539925A publication Critical patent/CN115539925A/en
Pending legal-status Critical Current

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B1/00—Methods of steam generation characterised by form of heating method
    • F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F22—STEAM GENERATION
    • F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
    • F22B33/00—Steam-generation plants, e.g. comprising steam boilers of different types in mutual association
    • F22B33/18—Combinations of steam boilers with other apparatus
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D20/0056—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00 using solid heat storage material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D20/00—Heat storage plants or apparatus in general; Regenerative heat-exchange apparatus not covered by groups F28D17/00 or F28D19/00
    • F28D2020/0065—Details, e.g. particular heat storage tanks, auxiliary members within tanks
    • F28D2020/0082—Multiple tanks arrangements, e.g. adjacent tanks, tank in tank
    • 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

Abstract

The invention relates to the field of photo-thermal power generation, and discloses a circulating heat exchange system and heat storage equipment, wherein the circulating heat exchange system comprises: the cold bin is provided with a first feeding hole used for receiving the solid particle heat storage medium and a first discharging hole used for discharging the solid particle heat storage medium; the heating device is used for receiving the solid particle heat storage medium discharged by the cold bin and is arranged to heat the solid particle heat storage medium; the hot bin is provided with a second feeding hole and a second discharging hole, and the second feeding hole is communicated with the heating device so as to receive the heated solid particle heat storage medium discharged by the heating device; the heat exchange device can receive the solid particle heat storage medium discharged from the hot bin, and the solid particle heat storage medium can be discharged to the cold bin after heat exchange. The invention can play the roles of fast peak regulation, reaction time reduction and energy saving, and can recycle the heat storage medium.

Description

Circulation heat exchange system and heat storage equipment
Technical Field
The invention relates to the field of photo-thermal power generation, in particular to a circulating heat exchange system and heat storage equipment.
Background
In a power plant, loads of a generator set and related systems are required to be increased frequently in a peak period of power utilization, but the loads of the generator set and the related systems are required to be reduced in a valley period of power utilization. The excess heat in the unit operation process needs to be stored. In the prior art, the common molten salt is used as a common medium for peak regulation, heat storage and energy storage of power generation enterprises, but the molten salt is large in loss and high in solidification point as a heat storage medium, cannot be repeatedly used, is not easy to control the operation temperature during heat storage, is easy to cause crystallization and precipitation, blocks a pipeline, is strong in corrosivity after being heated, and is easy to damage a heat exchanger. The common heat exchanger is matched with fused salt as an energy storage medium, the heat transfer of the two media is not thorough, the heat exchange time is not enough, and the heat transfer efficiency is not high.
Disclosure of Invention
The invention aims to overcome the problems in the prior art and provides a circulating heat exchange system and heat storage equipment, wherein the circulating heat exchange system can store heat and release heat by circularly utilizing a heat storage medium.
In order to achieve the above object, an aspect of the present invention provides a circulating heat exchange system, including: the cold bin is provided with a first feeding hole for receiving the solid particle heat storage medium and a first discharging hole for discharging the solid particle heat storage medium; the top of the heating device is communicated with the first discharge port to receive the solid particle heat storage medium discharged by the first discharge port, and the heating device is arranged to heat the solid particle heat storage medium; the hot bin is provided with a second feeding hole and a second discharging hole, the second feeding hole is communicated with the heating device so as to be capable of receiving the heated solid particle heat storage medium discharged by the heating device, and the solid particle heat storage medium can be stored and insulated in the hot bin; and the top of the heat exchange device is communicated with the second discharge port, and the bottom of the heat exchange device is communicated with the first feed port so as to be capable of receiving the solid particle heat storage medium discharged from the hot bin and discharging the solid particle heat storage medium to the cold bin after heat exchange in the heat exchange device.
Preferably, the heating device is provided with a heat storage inlet arranged at the top and a heat storage outlet arranged at the bottom, and a plurality of feeding pipes extending in the vertical direction are arranged between the heat storage inlet and the heat storage outlet so as to be capable of feeding the solid particle heat storage medium.
Preferably, the heating device further comprises an air inlet arranged at the lower end and an air outlet arranged at the upper end, a spiral heating pipe is communicated between the air inlet and the air outlet, and the spiral heating pipe is arranged to surround the feeding pipe along the extending direction of the feeding pipe so as to enable gas conveyed by the spiral heating pipe to exchange heat with the solid particle heat storage medium conveyed by the feeding pipe.
Preferably, a first feeding machine is arranged between the first discharge port and the heat storage inlet, and the first feeding machine is set to be capable of conveying the solid particle heat storage medium discharged from the first discharge port to the heat storage inlet.
Preferably, a first lifting machine is arranged between the heat storage outlet and the second feeding hole, so that the solid particle heat storage medium discharged from the heat storage outlet can be lifted and sent to the second feeding hole.
Preferably, the heat exchange device is provided with a heat exchange inlet arranged at the top and a heat exchange outlet arranged at the bottom, and a plurality of conveying pipes extending in the vertical direction are arranged between the heat exchange inlet and the heat exchange outlet so as to convey the solid particle heat storage medium.
Preferably, the heat exchange device further comprises a water inlet arranged at the lower end and an air outlet arranged at the upper end, a spiral heat exchange tube is communicated between the water inlet and the air outlet, the spiral heat exchange tube is arranged to surround the conveying pipe in the extending direction of the conveying pipe so as to be conveyed by the conveying pipe, and the solid particle heat storage medium is heated and vaporized by water introduced from the water inlet.
Preferably, a second feeding machine is arranged between the second discharge opening and the heat exchange inlet, and the second feeding machine is arranged to be capable of conveying the solid particle heat storage medium discharged from the second discharge opening to the heat exchange inlet.
Preferably, a second lifting machine is arranged between the heat exchange outlet and the first feeding hole, so that the solid particle heat storage medium discharged from the heat exchange outlet can be lifted and sent to the first feeding hole.
Another aspect of the invention provides a heat storage device, which includes the above-mentioned circulating heat exchange system.
Through the technical scheme, the energy storage medium in the heating device is heated by utilizing the redundant heat generated in the running process of the power plant unit, the heat is stored in the energy storage medium, when the load is increased, the heat energy in the energy storage medium is utilized to heat water into steam through the heat exchange device, so that the electricity generation amount is increased, the effects of quickly adjusting peak, reducing the reaction time and saving energy are achieved, the heat storage medium is recycled, the material cost is reduced, and the thermal stability in the temperature change process is also ensured.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
FIG. 1 is a schematic structural diagram of a circulating heat exchange system of the present invention;
FIG. 2 is a schematic view of the heating apparatus of FIG. 1;
fig. 3 is a schematic structural diagram of the heat exchange device in fig. 1.
Description of the reference numerals
10-cold bin, 11-first feed inlet, 12-first discharge outlet, 20-hot bin, 21-second feed inlet,
22-a second discharge opening, 100-a heating device, 101-a heat storage inlet, 102-a heat storage outlet,
103-feeding pipe, 104-air inlet, 105-air outlet, 106-spiral heating pipe,
200-heat exchange device, 201-heat exchange inlet, 202-heat exchange outlet, 203-material conveying pipe, 204-water inlet, 205-air outlet, 206-spiral heat exchange pipe, 30-first feeder, 40-first elevator,
50-a second feeder and 60-a second hoister.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, shall fall within the protection scope of the present invention.
In one aspect, the present invention provides a circulating heat exchange system, as shown in fig. 1, the circulating heat exchange system includes: the cold bin 10 is provided with a first feeding hole 11 for receiving the solid particle heat storage medium and a first discharging hole 12 for discharging the solid particle heat storage medium; the top of the heating device 100 is communicated with the first discharge port 12 to receive the solid particle heat storage medium discharged from the first discharge port 12, and the heating device 100 is configured to heat the solid particle heat storage medium; a hot bin 20, wherein the hot bin 20 has a second feeding hole 21 and a second discharging hole 22, the second feeding hole 21 is communicated with the heating device 100 to receive the heated solid particle heat storage medium discharged by the heating device 100, and the solid particle heat storage medium can be stored and insulated in the hot bin 20; and the top of the heat exchange device 200 is communicated with the second discharge port 22, and the bottom of the heat exchange device 200 is communicated with the first feed port 11, so that the solid particle heat storage medium discharged from the hot bin 20 can be received, and the solid particle heat storage medium is discharged to the cold bin 10 after heat exchange in the heat exchange device 200.
According to the invention, the solid particle heat storage medium in the heating device is heated by using the redundant heat generated in the operation process of the power plant unit, the heat in the redundant high-temperature steam generated by power plant power generation is stored in the solid particle heat storage medium, when the load is increased, the heat energy in the solid particle heat storage medium is used for heating water into steam through the heat exchange device, and the high-temperature steam is used for generating power, so that the power generation quantity is increased, the peak load shifting is realized, the power grid stability and the electric energy utilization rate are improved, the change capacities of the unit, such as large fluctuation in adaptive treatment, quick response and the like, are improved, and the effects of quickly adjusting the peak, reducing the reaction time and saving the energy are achieved. In the whole process, the solid particle heat storage medium is recycled, the solid particle heat storage medium is basically not consumed, the material cost is reduced, and the thermal stability in the temperature change process is also ensured. The device adopts a modular structure, occupies small area and is flexible to arrange and operate. The system operates at normal pressure, and the operation safety can be guaranteed.
Specifically, the solid particle heat storage medium can select a large amount of solid wastes such as sand, fly ash and slag as an energy storage medium, the use temperature is 300-1200 ℃, and the solid particle heat storage medium can be operated in a wider temperature range. The solid waste can not be decomposed or corroded under the condition of higher temperature, and can not generate phase change under the condition of lower temperature, and the solid waste has the advantages of high temperature resistance, no corrosion, good wear resistance and the like. The solid particle heat storage medium is low in cost, the power generation waste is used as the heat storage medium, additional investment is not needed, and the link of solid waste garbage disposal can be saved.
In addition, the cold bin 10 and the hot bin 20 have good heat preservation performance, the heat loss of the bin body is only 6-8 ℃ of temperature reduction per month, staged and adjustable heat release can be realized, and the heat release requirement in a specific time period is guaranteed.
In one embodiment of the present invention, as shown in fig. 2, the heating device 100 has a heat storage inlet 101 disposed at the top and a heat storage outlet 102 disposed at the bottom, and a plurality of feeding pipes 103 extending in the vertical direction are disposed between the heat storage inlet 101 and the heat storage outlet 102 to be able to feed the solid particle heat storage medium. Through with heat-retaining import 101 sets up at the device top for solid particle heat-retaining medium can utilize the perpendicular downstream of gravity, does not need extra power supply, sets up many conveying pipe 103 can further increase heat transfer area, realizes high-efficient heat transfer.
Further, the heating device 100 further comprises an air inlet 104 arranged at the lower end and an air outlet 105 arranged at the upper end, a spiral heating pipe 106 is communicated between the air inlet 104 and the air outlet 105, and the spiral heating pipe 106 is arranged to surround the feeding pipe 103 along the extending direction of the feeding pipe 103 so as to enable the gas conveyed by the spiral heating pipe 106 to exchange heat with the solid particle heat storage medium conveyed by the feeding pipe 103. The air inlet 104 is connected with a high-temperature steam port of power plant waste heat generated by power generation of the power plant to receive the redundant high-temperature steam generated by power generation of the power plant and exchange heat with the feeding pipe 103 through the spiral heating pipe 106, the contact area between the spiral heating pipe 106 and the feeding pipe 103 is increased, and the cross-flow contact can ensure full contact of gas phase and solid phase compared with downward contact at the same time.
Furthermore, in order to ensure that the steam flows from bottom to top, a pump and a flow meter are arranged on the air inlet 104, the flow rate of the steam is adjusted through pressure, and the adjusting range is wider.
In an embodiment, a first feeding machine 30 is disposed between the first discharge port 12 and the heat storage inlet 101, and the first feeding machine 30 is configured to convey the solid particle heat storage medium discharged from the first discharge port 12 to the heat storage inlet 101. The first feeder 30 is a conveying device capable of performing weighing and metering functions, such as a screw feeder, and is driven by a motor.
In addition, a first lifting machine 40 is arranged between the heat storage outlet 102 and the second feeding hole 21, so that the solid particle heat storage medium discharged from the heat storage outlet 102 can be lifted and sent to the second feeding hole 21.
In one embodiment of the present invention, as shown in fig. 3, the heat exchange device 200 has a heat exchange inlet 201 disposed at the top and a heat exchange outlet 202 disposed at the bottom, and a plurality of material conveying pipes 203 extending in a vertical direction are disposed between the heat exchange inlet 201 and the heat exchange outlet 202 to convey the solid particle heat storage medium. Through with heat transfer import 201 sets up at the device top for solid particle heat-retaining medium can utilize the perpendicular downstream of gravity, does not need extra power supply, sets up many conveying pipeline 203 can further increase heat transfer area, realizes high-efficient heat transfer.
Preferably, the heat exchange device 200 further comprises a water inlet 204 arranged at the lower end and an air outlet 205 arranged at the upper end, a spiral heat exchange tube 206 is communicated between the water inlet 204 and the air outlet 205, and the spiral heat exchange tube 206 is arranged to surround the material conveying pipe 203 along the extending direction of the material conveying pipe 203 so that the solid particle heat storage medium conveyed by the material conveying pipe 203 heats and vaporizes the water introduced from the water inlet 204. Specifically, the exhaust port 205 communicates with the power plant power generation system to perform cyclic power generation by the vaporized high-temperature steam. The contact area between the spiral heat exchange pipe 206 and the material conveying pipe 203 is increased, and the cross-flow contact is more ensured to fully contact the gas phase and the solid phase compared with the downward contact at the same time.
In order to control the operation of the heat exchange device 200 so that the circulating heat exchange system can timely release heat in the peak period of power generation, a second feeding machine 50 is arranged between the second discharge opening 22 and the heat exchange inlet 201, and the second feeding machine 50 is configured to convey the solid particle heat storage medium discharged from the second discharge opening 22 to the heat exchange inlet 201.
Further, a second lifting machine 60 is arranged between the heat exchange outlet 202 and the first feed port 11, so that the solid particle heat storage medium discharged from the heat exchange outlet 202 can be lifted and sent to the first feed port 11.
In an embodiment of the present invention, the bottoms of the cold bin 10, the hot bin 20, the heating device 100, and the heat exchanging device 200 are all provided with openings, and the openings are connected to a fan to prevent a part of the solid particle heat storage medium from agglomerating, so as to affect the overall flow inside the system.
Specifically, the solid particle heat storage medium in the cold bin 10, the hot bin 20, the heating device 100, and the heat exchange device 200 may be measured by a multi-channel contact K-type thermocouple thermometer, which has the characteristics of high measurement sensitivity, good material stability, low price, and the like.
Another aspect of the present invention provides a heat storage device, which includes the above-mentioned cyclic heat exchange system. Specifically, the heat storage equipment provided by the invention can store redundant heat generated in the operation process of a power plant unit, the heat in redundant high-temperature steam generated by power generation of the power plant is stored in the solid particle heat storage medium, when the load is increased, heat energy in the solid particle heat storage medium is utilized to heat water into steam through the heat exchange device, and the high-temperature steam is utilized to generate electricity, so that the electricity generation quantity is increased, peak load shifting is realized, the stability of a power grid and the utilization rate of electric energy are improved, the change capacities of the unit, such as large fluctuation adaptive treatment, quick response and the like, are improved, and the effects of quickly adjusting peaks, reducing reaction time and saving energy are achieved.
For further illustration of the present invention, the following cycle heat exchange steps of the cycle heat exchange system according to the present invention are specifically described:
in the period of low peak of electricity consumption, the solid particle heat storage medium at 50 ℃ is added into the cold bin 10, and the solid particle heat storage medium is conveyed from the first discharge port 12 to the heat storage inlet 101 at the top of the heating device 100 through the first feeder 30.
The solid particle heat storage medium with the temperature of 50 ℃ enters the heating device 100 and moves downwards along the feeding pipe 103, the air inlet 104 receives high-temperature medium-high pressure steam with the power generation temperature of more than 500 ℃ and the pressure of more than 2.6MPa, the high-temperature medium-high pressure steam with the temperature of less than 220 ℃ and the pressure of 2.6MPa is discharged from the air outlet 105 after heat exchange is carried out on the feeding pipe 103 through the spiral heating pipe 106, and the solid particle heat storage medium is heated to 300-320 ℃ and then discharged from the heat storage outlet 102.
The solid particle heat storage medium with the temperature of 300-320 ℃ is lifted by the first lifting machine 40 and sent to the second feeding hole 21, and is stored and insulated in the hot bin 20, so that low-peak heat storage is completed.
During peak electricity utilization period, the solid particle heat storage medium at 300-320 ℃ in the hot bin 20 is discharged from the second discharge port 22 and conveyed to the heat exchange inlet 201 at the top of the heat exchange device 200 through the second feeder 50.
300-320 ℃ of the solid particle heat storage medium enters the heat exchange device 200 and moves downwards along the conveying pipe 203, water of 20 ℃ is continuously introduced into the water inlet 204, the conveying pipe 203 is cooled through the spiral heat exchange pipe 206, the water in the spiral heat exchange pipe 206 is heated into steam of 250 ℃ and is discharged from the air outlet 205, the high-temperature steam of 250 ℃ is merged into a power plant system to continue power generation, and therefore the effects of peak shifting and valley filling, rapid peak regulation, reaction time reduction and energy saving are achieved. The solid particle heat storage medium is discharged from the heat exchange outlet 202 and stored in the cold bin 10 after being cooled to 50 ℃.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention can be made, and the same should be considered as the disclosure of the present invention as long as the idea of the present invention is not violated.

Claims (10)

1. A cyclical heat exchange system, the cyclical heat exchange system comprising:
a cold box (10), wherein the cold box (10) is provided with a first feeding hole (11) for receiving the solid particle heat storage medium and a first discharging hole (12) for discharging the solid particle heat storage medium;
the top of the heating device (100) is communicated with the first discharge port (12) to receive the solid particle heat storage medium discharged from the first discharge port (12), and the heating device (100) is arranged to heat the solid particle heat storage medium;
the hot bin (20) is provided with a second feeding hole (21) and a second discharging hole (22), the second feeding hole (21) is communicated with the heating device (100) so as to be capable of receiving the heated solid particle heat storage medium discharged by the heating device (100), and the solid particle heat storage medium can be stored and insulated in the hot bin (20);
the top of the heat exchange device (200) is communicated with the second discharge port (22), the bottom of the heat exchange device (200) is communicated with the first feed port (11), so that the solid particle heat storage medium discharged from the hot bin (20) can be received, and the solid particle heat storage medium is discharged to the cold bin (10) after heat exchange in the heat exchange device (200).
2. A cyclic heat exchange system according to claim 1, wherein the heating device (100) has a heat storage inlet (101) arranged at the top and a heat storage outlet (102) arranged at the bottom, and a plurality of feeding pipes (103) extending in the vertical direction are arranged between the heat storage inlet (101) and the heat storage outlet (102) to feed the solid particle heat storage medium.
3. A circulating heat exchange system according to claim 2, wherein the heating device (100) further comprises an air inlet (104) arranged at the lower end and an air outlet (105) arranged at the upper end, a spiral heating pipe (106) is communicated between the air inlet (104) and the air outlet (105), and the spiral heating pipe (106) is arranged to surround the feeding pipe (103) along the extending direction of the feeding pipe (103) so as to enable the gas conveyed by the spiral heating pipe (106) to exchange heat with the solid particle heat storage medium conveyed by the feeding pipe (103).
4. A cyclical heat exchange system according to claim 2, wherein a first feeder (30) is arranged between the first discharge opening (12) and the heat storage inlet (101), the first feeder (30) being arranged to be able to convey the solid particulate heat storage medium discharged from the first discharge opening (12) to the heat storage inlet (101).
5. A circulating heat exchange system according to claim 2, characterised in that a first lifter (40) is provided between the heat storage outlet (102) and the second inlet (21) to be able to lift the solid particulate heat storage medium discharged from the heat storage outlet (102) to the second inlet (21).
6. A cyclic heat exchange system according to claim 1, wherein the heat exchange device (200) has a heat exchange inlet (201) arranged at the top and a heat exchange outlet (202) arranged at the bottom, and a plurality of vertically extending feed pipes (203) are arranged between the heat exchange inlet (201) and the heat exchange outlet (202) to convey the solid particle heat storage medium.
7. The cyclic heat exchange system according to claim 6, wherein the heat exchange device (200) further comprises a water inlet (204) arranged at the lower end and an air outlet (205) arranged at the upper end, a spiral heat exchange pipe (206) is communicated between the water inlet (204) and the air outlet (205), and the spiral heat exchange pipe (206) is arranged to surround the material conveying pipe (203) along the extending direction of the material conveying pipe (203) so that the solid particle heat storage medium conveyed by the material conveying pipe (203) heats and vaporizes the water introduced from the water inlet (204).
8. A cyclical heat exchange system according to claim 6, wherein a second feeder (50) is arranged between the second discharge opening (22) and the heat exchange inlet (201), the second feeder (50) being arranged to be able to convey the solid particulate heat storage medium discharged from the second discharge opening (22) to the heat exchange inlet (201).
9. A cyclic heat exchange system according to claim 6, characterised in that a second lifting machine (60) is arranged between the heat exchange outlet (202) and the first inlet (11) to be able to lift the solid particulate heat storage medium discharged from the heat exchange outlet (202) to the first inlet (11).
10. Heat storage installation, characterized in that it comprises a cyclic heat exchange system according to any one of claims 1-9.
CN202211058731.2A 2022-08-30 2022-08-30 Circulation heat exchange system and heat storage equipment Pending CN115539925A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211058731.2A CN115539925A (en) 2022-08-30 2022-08-30 Circulation heat exchange system and heat storage equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211058731.2A CN115539925A (en) 2022-08-30 2022-08-30 Circulation heat exchange system and heat storage equipment

Publications (1)

Publication Number Publication Date
CN115539925A true CN115539925A (en) 2022-12-30

Family

ID=84726062

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211058731.2A Pending CN115539925A (en) 2022-08-30 2022-08-30 Circulation heat exchange system and heat storage equipment

Country Status (1)

Country Link
CN (1) CN115539925A (en)

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