CN211876830U - Heat storage type waste heat recovery system - Google Patents

Heat storage type waste heat recovery system Download PDF

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Publication number
CN211876830U
CN211876830U CN202020229871.1U CN202020229871U CN211876830U CN 211876830 U CN211876830 U CN 211876830U CN 202020229871 U CN202020229871 U CN 202020229871U CN 211876830 U CN211876830 U CN 211876830U
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heat
plate
pipe
waste heat
heat storage
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郑雪枫
郑光明
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Beijing Zijing Technology Co ltd
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Beijing Zijing Technology Co ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/14Thermal energy storage

Abstract

The patent relates to a heat storage type waste heat recovery system, including heat storage pipe, waste heat recovery pipe, extension plate, fastening screw and middle heat conduction flat board. The heat contained in the medium in the waste heat pipe is quickly transferred upwards through the middle heat conducting flat plate, exchanges heat with the medium in the heat storage pipe and stores the heat in the heat storage pipe. The joints of the middle heat conduction flat plate, the heat storage pipe and the waste heat pipe are clamped and fixed by the front and the rear extension plates. And sealant is coated at the joints. The extension plate tightly clamped is further strengthened and fixed through a through fixing screw. The medium in the heat storage pipe and the medium in the waste heat pipe flow in opposite directions, the flowing process is accompanied with the continuous heat exchange process, the temperature of the medium in the waste heat pipe is gradually reduced, and the temperature of the medium in the heat storage pipe is gradually increased. The system has the advantages of simple structure, unidirectional heat transfer characteristic, large heat transfer area, high heat exchange efficiency, bearing and energy storage, can be applied to a gas-liquid medium heat exchange system and a liquid-liquid medium heat exchange system, and has strong popularization prospect and wide market application.

Description

Heat storage type waste heat recovery system
The technical field is as follows:
the patent relates to a waste heat recovery system, in particular to a waste heat recovery system with a heat storage function.
Background art:
the waste heat recovery is to recover sensible heat and latent heat which are not reasonably utilized in the energy consumption devices of the operated industrial enterprises. The waste heat mainly comprises high-temperature waste gas waste heat, cooling medium waste heat, waste steam waste water waste heat, high-temperature product and furnace slag waste heat, chemical reaction waste heat, combustible waste gas waste liquid, waste material waste heat and the like. According to investigation, the total waste heat resources of all industries account for 17% -67% of the total fuel consumption, and the recyclable waste heat resources account for 60% of the total waste heat resources. Waste heat can be recovered to the maximum extent by recovering waste heat, energy consumption is saved, and free domestic hot water is provided; directly reduces the waste heat discharge amount to the atmosphere and has good economic performance.
The recycling of waste heat has many ways. Generally, comprehensive utilization of waste heat is best, and then direct utilization is performed, and then indirect utilization is performed (such as waste heat power generation). The comprehensive utilization is that according to the quality of waste heat, the waste heat is utilized according to different temperature levels in a stepped manner, the high quality can be used for production technology or waste heat power generation, and the low temperature level can be used for heating or an absorption heat pump is used for increasing the quantity of heat or the temperature for production and living. At present, mature application waste heat recovery and utilization are as follows: flue gas waste heat recovery, bathing hot water waste heat recovery, and waste heat recovery in high-temperature waste gas and waste water generated in a factory. But there is some not enough among the current waste heat recovery system, like in the shell and tube heat transfer system, the heat exchange line is long, and the resistance is big, and general heat exchange efficiency is not too high, and heat recovery efficiency is low, and in plate heat transfer system, because be fin formula heat transfer structure, require the medium clean, otherwise block up easily, operating pressure also can not be too big in addition, otherwise can reveal, leads to two kinds of heat transfer medium contact to mix and cause the pollution. The waste heat recovery applied at present can not store energy, the time interval of generating waste heat and using the waste heat has asynchronism, and the heat loss is easily caused.
The invention content is as follows:
the purpose of this system is in order to overcome the not enough of prior art existence, provides a heat storage type waste heat recovery system, and this system has heat transfer efficiency height, and the samming performance is good, the one-way heat transfer characteristic, owing to designed heat storage pipe, this system can also be used to solve the waste heat at the time asynchronous problem of release and demand.
1. A heat storage type waste heat recovery system is characterized by comprising:
heat storage tube 1, waste heat recovery tube 2 and middle flat plate heat conducting plate 5
The heat storage pipe 1 is directly connected with the upper end of the middle flat plate heat conducting plate 5 and is provided with an inlet and an outlet; the lower end of the middle flat plate heat-conducting plate is inserted into the waste heat recovery pipe; the surface of the middle flat plate heat-conducting plate is coated with an anti-corrosion coating,
the heat storage pipe and the waste heat recovery pipe are respectively provided with two extension plates, namely an upper extension plate and a lower extension plate which are four extension plates; the upper and lower extension plates are both composed of a front extension plate and a rear extension plate; a crack is formed between the front and the rear extension plates; the middle flat plate heat-conducting plate penetrates through a crack between the front and rear extension plates, the upper end of the middle flat plate heat-conducting plate is positioned in the heat storage pipe, and the lower end of the middle flat plate heat-conducting plate is positioned in the waste heat recovery pipe; the joint of the extension plate crack and the middle flat plate heat conducting plate is firstly bonded and sealed by sealant;
the vertical distance between the upper extension plate and the lower extension plate of the heat storage pipe and the waste heat recovery pipe is not more than 20 mm;
the heat recovery device also comprises an upper extension plate and a lower extension plate, wherein one extension plate is connected with the heat storage pipe, the other extension plate is connected with the waste heat recovery pipe, and the distance between the upper extension plate and the lower extension plate is not more than 20 mm; the upper and lower extension plates are both composed of a front extension plate and a rear extension plate; the joint of the middle flat plate heat-conducting plate and the interface of the heat storage pipe and the joint of the middle flat plate heat-conducting plate and the interface of the waste heat recovery pipe are clamped and fixed by a front extension plate and a rear extension plate.
2. Further, the heat storage pipe is cylindrical, the diameter of the heat storage pipe is 80-200 mm, and the heat storage pipe is made of copper, aluminum alloy or stainless steel.
3. Further, the length of the extension plate is consistent with that of the heat storage pipe.
4. Furthermore, the joint of the middle flat plate heat-conducting plate and the interface of the heat storage pipe is coated with sealant, and the interface of the middle flat plate heat-conducting plate and the interface of the waste heat recovery pipe is coated with sealant.
5. Furthermore, the waste heat recovery pipe is made of copper, aluminum alloy or stainless steel and has a diameter of 40-80 mm.
6. Further, the height of the extension plate is 30-100 mm.
7. Further, the middle flat plate heat conducting plate is a copper plate, an aluminum plate, a graphene plate or a flat plate heat pipe, and the thickness of the plate is 2-5 mm.
8. Furthermore, the material of the anticorrosive coating coated on the surface of the middle flat plate heat conducting plate is polymer anticorrosive coating, and the thickness of the coating is 50-200 microns.
9. Further, the fastening screws 4 are used for fixing the extension plate connected with the heat storage tank and the waste heat recovery pipe, so that the two surfaces of the extension plate clamp the middle flat plate heat conduction plate.
The system has the advantages that:
1. the system in this patent simple structure adopts the dull and stereotyped design of middle heat conduction, and heat transfer area is big, and heat transfer efficiency is high, is particularly useful for waste heat recovery system.
2. The system can bear pressure, and the pressure can reach 1MPa at most.
3. The system has small resistance to medium circulation, and the two media exchange heat and are completely isolated, thereby avoiding mixed pollution and leakage risk.
4. The system adopts a modular design, and can be used in series or in parallel to increase the heat exchange area. The heat exchanger can be applied to a gas-liquid medium heat exchange system and a liquid-liquid medium heat exchange system, and has strong popularization prospect and wide market application.
5. The system has a heat storage function, and can avoid heat loss caused by asynchronous time periods of waste heat generation and waste heat use.
Drawings
FIG. 1 is a front view of a heat storage type waste heat recovery system
FIG. 2 is a cross-sectional view of a heat storage type waste heat recovery system
Wherein: 1. heat storage pipe 2, waste heat recovery pipe 3, extension plate 4, fastening screw 5, middle heat conduction flat plate
Detailed Description
The invention content of the patent is as follows:
1. the heat storage pipe is cylindrical, the diameter of the heat storage pipe is 80-200 mm, the heat storage pipe is made of copper, aluminum alloy or stainless steel, the heat storage pipe is directly connected with the upper end of the middle flat plate heat conduction plate, and the heat storage pipe is provided with an inlet and an outlet; the extension plate connected with the heat storage pipe and the energy storage pipe are designed integrally, and are bent and pressed to form a front extension plate and a rear extension plate. The height is 30-100 mm, and the length is the same as the length of the heat storage pipe.
2. The waste heat recovery pipe is made of copper, aluminum alloy or stainless steel and has a diameter of 40-80 mm. The extension plates are connected with the waste heat recovery pipes, the height of the extension plates is 30-100 mm, the extension plates and the waste heat recovery pipes are integrally formed in the same manner as the above manufacturing method, and the front extension plates and the rear extension plates are formed through bending and pressing. The length of the waste heat recovery pipe is consistent with that of the waste heat recovery pipe.
One of the two extension plates is connected with the heat storage pipe, and the other of the two extension plates is connected with the waste heat recovery pipe, the shorter the distance between the two extension plates is, the better the distance is, and the longest distance is not more than 20 mm.
3. The middle flat plate heat-conducting plate is a copper plate, an aluminum plate, a graphene plate or a flat heat pipe, the thickness of the plate is 2-5 mm, the lower end of the middle flat plate heat-conducting plate is inserted into the waste heat recovery pipe, and the upper end of the middle flat plate heat-conducting plate is inserted into the heat storage pipe; the middle flat plate heat conducting plate directly exchanges heat with the waste heat recovery tube, quickly conducts heat upwards, exchanges heat with a medium in the heat storage tube, and forms a non-contact heat bridge; the surface of the middle flat plate heat conducting plate needs to be subjected to anticorrosion treatment, and is coated with an anticorrosion coating, and the middle flat plate heat conducting plate can be sprayed or soaked, and is made of polymer anticorrosion coating, such as acrylic acid, polyurethane, fluoroplastic, epoxy systems and the like, and the thickness of the coating is 50-200 microns.
The joints of the middle heat conduction flat plate, the heat storage pipe and the waste heat pipe are clamped and fixed by the front and the rear extension plates. And sealant is coated at the joints.
4. The fixing screws are used for fixing the extension plate connected with the heat storage tank and the waste heat recovery pipe, so that the two surfaces of the extension plate are clamped tightly to form the middle heat conducting plate.

Claims (9)

1. A heat storage type waste heat recovery system is characterized by comprising:
the heat storage pipe, the waste heat recovery pipe and the middle flat plate heat conducting plate are arranged on the heat storage pipe;
the heat storage pipe is directly connected with the upper end of the middle flat plate heat-conducting plate and is provided with an inlet and an outlet; the lower end of the middle flat plate heat-conducting plate is inserted into the waste heat recovery pipe; the waste heat recovery pipe is provided with an inlet and an outlet; the surface of the middle flat plate heat-conducting plate is coated with an anti-corrosion coating,
the heat storage pipe and the waste heat recovery pipe are respectively provided with two extension plates, namely an upper extension plate and a lower extension plate which are four extension plates; the upper and lower extension plates are both composed of a front extension plate and a rear extension plate; a crack is formed between the front and the rear extension plates; the middle flat plate heat-conducting plate penetrates through a crack between the front and rear extension plates, the upper end of the middle flat plate heat-conducting plate is positioned in the heat storage pipe, and the lower end of the middle flat plate heat-conducting plate is positioned in the waste heat recovery pipe; the joint of the extension plate crack and the middle flat plate heat conducting plate is firstly bonded and sealed by sealant;
the vertical distance between the upper extension plate and the lower extension plate of the heat storage pipe and the waste heat recovery pipe is not more than 20 mm;
the joint of the middle flat plate heat-conducting plate and the interface of the heat storage pipe and the joint of the middle flat plate heat-conducting plate and the interface of the waste heat recovery pipe are clamped and fixed by a front extension plate and a rear extension plate.
2. The system of claim 1, wherein:
the heat storage pipe is cylindrical, the diameter of the heat storage pipe is 80-200 mm, and the heat storage pipe is made of copper, aluminum alloy or stainless steel.
3. The system of claim 1, wherein:
the length of the extension plate is consistent with that of the heat storage pipe and the waste heat recovery pipe.
4. The system of claim 1, wherein:
the joint of the middle flat plate heat-conducting plate and the interface of the heat storage pipe is coated with sealant, and the interface of the middle flat plate heat-conducting plate and the interface of the waste heat recovery pipe is coated with sealant.
5. The system of claim 1, wherein:
the waste heat recovery pipe is made of copper, aluminum alloy or stainless steel and has a diameter of 40-80 mm.
6. The system of claim 1, wherein:
the extension plate has a height of 30 to 100 mm.
7. The system of claim 1, wherein:
the middle flat plate heat conducting plate is a copper plate, an aluminum plate, a graphene plate or a flat plate heat pipe, and the thickness of the plate is 2-5 mm.
8. The system of claim 1, wherein:
the anti-corrosion coating material coated on the surface of the middle flat heat conducting plate is a polymer anti-corrosion coating, and the thickness of the coating is 50-200 microns.
9. The system of claim 1, wherein:
the screw is used for fixing the extension plates connected with the heat storage tank and the waste heat recovery pipe, so that the front extension plate and the rear extension plate clamp the middle flat plate heat-conducting plate.
CN202020229871.1U 2020-02-29 2020-02-29 Heat storage type waste heat recovery system Active CN211876830U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020229871.1U CN211876830U (en) 2020-02-29 2020-02-29 Heat storage type waste heat recovery system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020229871.1U CN211876830U (en) 2020-02-29 2020-02-29 Heat storage type waste heat recovery system

Publications (1)

Publication Number Publication Date
CN211876830U true CN211876830U (en) 2020-11-06

Family

ID=73254366

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202020229871.1U Active CN211876830U (en) 2020-02-29 2020-02-29 Heat storage type waste heat recovery system

Country Status (1)

Country Link
CN (1) CN211876830U (en)

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