Waste heat recovery structure for phase change heat reservoir

Abstract

The utility model relates to the technical field of waste heat recovery, in particular to a waste heat recovery structure for a phase change heat reservoir, which comprises a waste heat recovery structure main body and the phase change heat reservoir, an inner box body is arranged in the waste heat recovery structure main body, and the upper end and the lower end of the inner box body are respectively connected with an exhaust pipe and an air inlet reducing cylinder in a sealing mode. Pipe plates are symmetrically arranged in the inner box body, corrugated pipes are evenly installed between the pipe plates at intervals, U-shaped connecting pipe fittings sequentially communicated with the corrugated pipes are further arranged on the other faces of the pipe plates, an outer box body is arranged outside the inner box body, and the periphery between the outer box body and the inner box body is filled with a heat preservation interlayer. According to the waste heat recovery structure for the phase change heat reservoir, the heat preservation interlayer is arranged between the inner box body and the outer box body, the waste heat recovery efficiency can be effectively guaranteed, meanwhile, the splitter plate and the partition plate are arranged in the inner box body, the air flowing path can be prolonged, meanwhile, waste heat recovery is conducted through cooperation of air and the corrugated pipe, and the waste heat recovery efficiency is improved. And the internal structure can be conveniently cleaned.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waste heat recovery structure for phase change heat accumulator. BACKGROUND

[0002] The phase change heat accumulator is usually composed of a phase change material, a packaging material, a heat exchange system and an insulation structure, and utilizes the characteristics of a substance absorbing or releasing a large amount of latent heat in the phase change process to store and release energy. The phase change heat accumulator can absorb and release heat at a relatively constant temperature, and is therefore very suitable for application scenarios requiring stable temperature.

[0003] The existing phase change heat accumulator has the problem of heat loss when collecting and processing heat in waste gas through the waste heat recovery structure, and the impurities in the waste gas attached to the heat exchange structure will affect the effect of waste heat recovery. UTILITY MODEL CONTENT

[0004] The utility model aims at providing a waste heat recovery structure for phase change heat accumulator to solve the problem of heat loss of the phase change heat accumulator on the market when collecting and processing heat in waste gas through the waste heat recovery structure, and the problem of the impurities in the waste gas attached to the heat exchange structure affecting the effect of waste heat recovery.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical scheme: a waste heat recovery structure for phase change heat accumulator, comprising a waste heat recovery structure main body and a phase change heat accumulator, an inner box body is arranged in the waste heat recovery structure main body, and an exhaust pipe and an air inlet reducing cylinder are respectively connected to the upper and lower ends of the inner box body, pipe plates are symmetrically arranged in the inner box body, wave tube is uniformly and intervally arranged between the pipe plates, and U-shaped connecting pipe fittings sequentially communicated with the wave tube are further arranged on the other side of the pipe plates, an outer box body is arranged outside the inner box body, and a heat insulation layer is filled around the inner box body and the outer box body, first and second partition plates are further arranged between the pipe plates, and through holes for clamping the wave tube at large size are respectively arranged on the first and second partition plates.

[0006] Preferably, liquid inlet ends and liquid outlet ends are respectively arranged at the two ends of the loop of the wave tube and the U-shaped connecting pipe fittings outside the waste heat recovery structure main body, the phase change heat accumulator is provided with a heat release discharge inlet and a heat release discharge outlet and a heat storage discharge outlet and a heat storage discharge inlet matched with each other, the heat storage discharge inlet is communicated with the liquid outlet end through a pipe fitting, and the heat storage discharge outlet is communicated with the liquid inlet end through a pipe fitting.

[0007] Preferably, the exhaust pipe is located between the second partition plates, and a bidirectional S-shaped flow channel is formed between the second partition plates and the first partition plates.

[0008] Preferably, the air inlet reducing cylinder upper end opening is larger than the lower end opening, and the air inlet reducing cylinder is clamped and welded with a flow distribution plate.

[0009] Preferably, the flow distribution plate is located on the axis of the air inlet reducing cylinder, and the flow distribution plate is supported at the bottom of the first partition plate, and the flow distribution plate is arranged in parallel with the second partition plate.

[0010] Preferably, the air inlet reducing cylinder lower end is connected with an air inlet cleaning cylinder through a flange structure, both ends of the air inlet cleaning cylinder are conical structures, and the air inlet cleaning cylinder is clamped with an inclined filter screen.

[0011] Compared with the prior art, the beneficial effects of the present application are: the waste heat recovery structure for the phase change heat storage device can effectively ensure the efficiency of waste heat recovery by arranging the heat preservation layer between the inner box body and the outer box body, and the air flow path is lengthened by arranging the flow distribution plate and the partition plate in the inner box body, and the waste heat recovery effect is ensured by the cooperation of air and wave tube, and the internal structure is convenient to clean. The waste heat recovery structure for the phase change heat storage device forms a bidirectional X-shaped flow channel in the inner box body by designing symmetrical second partition plates in the U-shaped first partition plate, ensures the lengthening of the flow path of the exhaust gas, and ensures the waste heat recovery effect, and the loss of heat can be effectively reduced after the exhaust gas is collected between the second partition plates and discharged. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is a schematic view of the main body of the waste heat recovery structure for the phase change heat storage device and the phase change heat storage device connection structure of the utility model;

[0013] Figure 2 It is a schematic view of the inner box body structure of the waste heat recovery structure for the phase change heat storage device of the utility model;

[0014] Figure 3 It is a schematic view of the internal structure of the waste heat recovery structure for the phase change heat storage device of the utility model;

[0015] Figure 4 It is a schematic view of the relative position structure of the first partition plate and the second partition plate of the waste heat recovery structure for the phase change heat storage device of the utility model.

[0016] In the drawing: 1, waste heat recovery structure main body; 2, outer box body; 3, air inlet cleaning cylinder; 301, filter screen; 4, phase change heat storage device; 401, heat release inlet; 402, heat release outlet; 403, heat storage outlet; 404, heat storage inlet; 5, exhaust pipe; 6, liquid inlet; 7, liquid outlet; 8, inner box body; 9, air inlet reducing cylinder; 10, heat preservation layer; 11, U-shaped connecting pipe; 12, wave tube; 13, first partition plate; 14, second partition plate; 15, flow distribution plate; 16, tube plate. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0018] Please refer to Figures 1-4The utility model provides a kind of technical scheme: a waste heat recovery structure for phase change heat reservoir, including waste heat recovery structure main body 1 and phase change heat reservoir 4, waste heat recovery structure main body 1 outside to wave tube 12 and the circuit both ends of U-shaped connecting pipe fitting 11 are respectively equipped with liquid inlet end 6 and liquid outlet end 7, phase change heat reservoir 4 is equipped with mutually matched heat release discharge port 401 and heat release discharge outlet 402 and heat storage discharge outlet 403 and heat storage discharge inlet 404, and heat storage discharge inlet 404 is communicated with liquid outlet end 7 by pipe fitting, and heat storage discharge outlet 403 is communicated with liquid inlet end 6 by pipe fitting, this structure can make the heat that waste heat recovery structure main body 1 is collected by wave tube 12 be stored into phase change heat reservoir 4 by the circuit of liquid outlet end 7, heat storage discharge inlet 404, heat storage discharge outlet 403 and liquid inlet end 6, waste heat recovery structure main body 1 is equipped with inner box 8, and inner box 8 upper end is respectively sealedly connected with exhaust pipe 5 and air inlet reducing cylinder 9, air inlet reducing cylinder 9 upper end opening is greater than lower end opening, and air inlet reducing cylinder 9 is clamped and welded with shunt plate 15, this structure is designed by air inlet reducing cylinder 9, the exhaust gas that enters inner box 8 can be dispersed by reducing, and is shunted to both sides S-shaped flow channel by shunt plate 15, inner box 8 is symmetrically equipped with pipe plate 16, and wave tube 12 is evenly spaced and installed between pipe plate 16, exhaust pipe 5 is located between second baffle 14, and second baffle 14 and first baffle 13 form bidirectional S-shaped flow channel, this structure can make the exhaust gas that converges between second baffle 14 can flow to exhaust pipe 5 and then be discharged, exhaust gas can flow in bidirectional S-shaped flow channel formed between second baffle 14 and first baffle 13 in inner box 8, ensure that exhaust gas and wave tube 12 are fully contacted, the fluid in wave tube 12 generates turbulence by the special structure of wave tube 12, ensure heat exchange effect, so as to guarantee the waste heat recovery efficiency of waste heat recovery structure main body 1, and pipe plate 16 other side is also equipped with U-shaped connecting pipe fitting 11 in sequence with wave tube 12, outer box 2 is arranged outside inner box 8, and the periphery between outer box 2 and inner box 8 is filled with heat preservation layer 10, first baffle 13 and second baffle 14 are also arranged between pipe plate 16, and the through hole of first baffle 13 and second baffle 14 is respectively provided with the clamping of wave tube 12 large size, shunt plate 15 is located on the axis of air inlet reducing cylinder 9, and shunt plate 15 is supported on the bottom of first baffle 13, and shunt plate 15 and second baffle 14 are relatively parallelly arranged, this structure can reliably support the bottom of the U-shaped structure of first baffle 13 while shunting exhaust gas by shunt plate 15, air inlet cleaning cylinder 3 is connected to the lower end of air inlet reducing cylinder 9 by flange structure, and the both ends of air inlet cleaning cylinder 3 are conical structure, and air inlet cleaning cylinder 3 is clamped with the filter screen 301 of inclined arrangement, this structure can filter the large particle impurities in exhaust gas by filter screen 301, effectively prevent impurities from adhering to wave tube 12, and the special design of wave tube 12 can reduce the adhesion of impurities.

[0019] Working principle: when using the waste heat recovery structure for phase change heat accumulator, first, the waste heat recovery structure body 1 provides heat for the phase change heat accumulator 4 by collecting the heat of the exhaust gas, the exhaust gas first enters the inlet gas cleaning cylinder 3, and the large particle impurities are filtered by the filter screen 301, then the exhaust gas enters the inlet variable diameter cylinder 9, and after being divided by the flow dividing plate 15, it enters the inner box body 8, and then passes through the double-way S-shaped flow channel formed by the first partition plate 13 and the second partition plate 14, so that the exhaust gas flow process is increased, and is collected to the middle area and then discharged by the exhaust pipe 5, the exhaust gas in the inner box body 8 is subjected to heat exchange by the wave node tube 12, the U-shaped connecting pipe fitting 11 is used for the sequential communication between the wave node tubes 12, the pipe plate 16 is used for the installation and positioning treatment of the wave node tube 12, the fluid in the wave node tube 12 circulates between the liquid outlet end 7, the heat storage discharge inlet 404, the heat storage discharge outlet 403 and the liquid inlet end 6, so as to realize the storage of the heat collected by the waste heat recovery structure body 1 by the phase change heat accumulator 4, the phase change heat accumulator 4 is connected with the equipment needing heat through the heat release discharge inlet 401 and the heat release discharge outlet 402, so that the heat can be released, the outer box body 2 and the inner box body 8 are subjected to high-efficiency heat preservation treatment through the heat preservation layer 10, so as to ensure the waste heat recovery efficiency, so as to complete a series of work.

[0020] Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement to part of the technical features, any modification, equivalent replacement, improvement, etc. within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A waste heat recovery structure for a phase change thermal accumulator, comprising a waste heat recovery structure body (1) and a phase change thermal accumulator (4), characterized in that: The waste heat recovery structure body (1) is internally provided with an inner box (8), and the upper and lower ends of the inner box (8) are respectively sealed and connected with an exhaust pipe (5) and an air inlet reducing cylinder (9), the inner box (8) is symmetrically provided with a tube plate (16), and the tube plates (16) are uniformly and spacedly provided with bellow tubes (12), and the other side of the tube plate (16) is further provided with U-shaped connecting pipes (11) sequentially communicated with the bellow tubes (12), the outer portion of the inner box (8) is provided with an outer box (2), and the periphery between the outer box (2) and the inner box (8) is filled with a heat preservation layer (10), the tube plates (16) are further provided with a first partition plate (13) and a second partition plate (14), and the first partition plate (13) and the second partition plate (14) are respectively provided with through holes clamped with large-size portions of the bellow tubes (12).

2. A waste heat recovery structure for a phase change thermal accumulator according to claim 1, characterized in that: The waste heat recovery structure body (1) is externally provided with liquid inlet ends (6) and liquid outlet ends (7) at the loop ends of the bellow tubes (12) and the U-shaped connecting pipes (11), the phase change heat accumulator (4) is provided with a heat release discharge inlet (401), a heat release discharge outlet (402), a heat storage discharge outlet (403) and a heat storage discharge inlet (404) matched with each other, the heat storage discharge inlet (404) is communicated with the liquid outlet end (7) through a pipe, and the heat storage discharge outlet (403) is communicated with the liquid inlet end (6) through a pipe.

3. A waste heat recovery structure for a phase change thermal accumulator according to claim 1, characterized in that: The exhaust pipe (5) is located between the second partition plates (14), and the second partition plates (14) and the first partition plate (13) form a bidirectional S-shaped flow channel.

4. A waste heat recovery structure for a phase change thermal accumulator according to claim 1, characterized in that: The air inlet reducing cylinder (9) is provided with a larger upper opening than a lower opening, and the air inlet reducing cylinder (9) is clamped and welded with a flow dividing plate (15) therein.

5. A waste heat recovery structure for a phase change thermal accumulator according to claim 4, characterized in that: The flow dividing plate (15) is located on the axis of the air inlet reducing cylinder (9), and the flow dividing plate (15) is supported on the bottom of the first partition plate (13), and the flow dividing plate (15) is arranged in parallel with the second partition plate (14).

6. A waste heat recovery structure for a phase change thermal accumulator according to claim 1, characterized in that: The lower end of the air inlet reducing cylinder (9) is connected with an air inlet cleaning cylinder (3) through a flange structure, both ends of the air inlet cleaning cylinder (3) are conical structures, and the air inlet cleaning cylinder (3) is clamped with an inclined filter screen (301) therein.

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