A heat energy recovery device for thermal energy and power engineering

By introducing an agitation mechanism into the heat recovery device, the rotation of the shaft is driven by the flow of flue gas, which solves the problems of low and uneven heat utilization caused by the stasis of the heat exchange liquid, and achieves more efficient heat utilization.

CN224534857UActive Publication Date: 2026-07-21SHANDONG CONSTR PLANNING & DESIGN INST CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANDONG CONSTR PLANNING & DESIGN INST CO LTD
Filing Date
2025-07-07
Publication Date
2026-07-21

AI Technical Summary

Technical Problem

In existing heat recovery devices for thermal and power engineering, the heat exchange liquid is in a static state, resulting in low heat utilization and uneven heat exchange.

Method used

A heat recovery device including an agitation mechanism was designed. The heat exchange liquid is agitated by a rotating shaft driving blades, and the rotating shaft is driven to rotate by the flow of flue gas, so as to achieve full contact between the liquid and the flue gas and improve the heat utilization rate.

Benefits of technology

This results in more uniform heating of the heat exchange liquid, improves heat utilization, and ensures that the heat in the flue gas is fully utilized.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model belongs to the thermal energy and power engineering technical field, concretely is a kind of thermal energy recovery device for thermal energy and power engineering, including fixed box, the top of fixed box is placed with lid, the inside fixed connection of fixed box has heat exchange mechanism, the lower part fixed connection of heat exchange mechanism has pollution control mechanism, the lower part fixed connection of fixed box has support, the inside movable joint of heat exchange mechanism has agitating mechanism. The utility model is through being provided with agitating mechanism, can agitate heat exchange liquid, when smoke flows in heat exchange pipe, can promote driving blade to make the rotation of rotating shaft, to make the connecting sleeve drive agitating blade to agitate heat exchange liquid, further make heat exchange liquid and heat exchange pipe fully contact, make heat exchange liquid be heated more evenly, and can make the heat in smoke be fully utilized, improve the utilization of heat.
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Description

Technical Field

[0001] This utility model belongs to the field of thermal energy and power engineering technology, specifically a heat energy recovery device for thermal energy and power engineering. Background Technology

[0002] Thermal energy and power engineering mainly involves the design, operation, automatic control, information processing, computer applications, environmental protection, refrigeration and air conditioning, efficient and clean energy utilization, and new energy development of thermal power equipment and systems. In thermal energy and power engineering, flue gas containing a large amount of heat needs to be discharged through exhaust pipes. Direct emission would waste a significant amount of heat energy in the flue gas; therefore, heat recovery devices are generally used to recover this heat energy.

[0003] When existing heat recovery devices for thermal and power engineering are in use, the heat exchange liquid in the heat recovery device is generally in a static state, which easily leads to uneven heating of the heat exchange liquid during heat exchange, and the heat in the flue gas cannot be quickly transferred into the heat exchange liquid, resulting in low heat utilization rate. Summary of the Invention The purpose of this invention is to provide a heat energy recovery device for thermal and power engineering with high heat utilization efficiency, so as to solve the problems mentioned in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a heat recovery device for thermal and power engineering is provided, including a fixed box, a box cover on the top of the fixed box, a heat exchange mechanism fixedly connected inside the fixed box, a sewage discharge mechanism fixedly connected to the lower part of the heat exchange mechanism, a support fixedly connected to the lower part of the fixed box, an agitation mechanism movably connected inside the heat exchange mechanism, the agitation mechanism including a rotating shaft movably connected inside the heat exchange mechanism, a drive blade fixedly connected to the middle of the outer side of the rotating shaft, connecting sleeves fixedly connected to both sides of the outer side of the rotating shaft, and agitation blades fixedly connected to the outer side of the connecting sleeves.

[0005] Optionally, the fixed box includes a box body, with first connection holes on both sides of the box body, a water outlet pipe fixedly connected to the lower right side of the box body, and a second connection hole at the lower part of the box body.

[0006] Optionally, the lid includes a sealing gasket placed on top of the box body, the top of the sealing gasket is fixedly connected to the cover body, the cover body is movably connected to the interior of the sealing gasket by bolts, and the top of the cover body is fixedly connected to a water inlet pipe.

[0007] Optionally, the heat exchange mechanism includes an air inlet pipe fixedly connected to the left side of the box and an air outlet pipe fixedly connected to the right side of the box. A heat exchange pipe is fixedly connected between the air inlet pipe and the air outlet pipe. A sealing sleeve is fixedly connected to the outside of the heat exchange pipe, and a through hole is provided at the bottom of the heat exchange pipe.

[0008] Optionally, the sewage discharge mechanism includes a connecting pipe fixedly connected to the lower part of the heat exchange tube, a control valve installed on the connecting pipe, and a drain pipe fixedly connected to the lower part of the connecting pipe.

[0009] Optionally, the support includes a support rod fixedly connected to the lower part of the box body, a base plate fixedly connected to the lower part of the support rod, an anti-slip pad fixedly connected to the lower part of the base plate, and fixing holes provided inside the base plate and the anti-slip pad. Compared with the prior art, the beneficial effects of this utility model are as follows: This invention features a stirring mechanism that agitates the heat exchange liquid. During operation, the heat exchange liquid is introduced into the chamber through the inlet pipe, and then flue gas carrying a large amount of heat is introduced into the heat exchange tube through the inlet pipe. The flue gas exchanges heat with the heat exchange liquid, and the heat-exchanged flue gas is discharged through the outlet pipe. As the flue gas flows through the heat exchange tube, it drives the drive blades, causing the shaft to rotate. This, in turn, causes the connecting sleeve to drive the stirring blades, agitating the heat exchange liquid. The stirring of the blades ensures thorough contact between the heat exchange liquid and the heat exchange tube, resulting in more uniform heating of the liquid and full utilization of the heat in the flue gas, thus improving heat utilization efficiency. Attached Figure Description

[0010] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0011] Figure 1 This is a cross-sectional structural diagram of the present invention; Figure 2 This is a schematic diagram of the overall structure of this utility model; Figure 3 This is a schematic diagram of the structure of the fixing box of this utility model; Figure 4 This is a cross-sectional structural diagram of the heat exchange mechanism of this utility model; Figure 5 This is a schematic diagram of the stirring mechanism of this utility model.

[0012] In the diagram: 1. Fixed box; 101. Box body; 102. First connecting hole; 103. Water outlet pipe; 104. Second connecting hole; 2. Box cover; 201. Cover body; 202. Sealing gasket; 203. Bolt; 204. Water inlet pipe; 3. Heat exchange mechanism; 301. Air inlet pipe; 302. Heat exchange tube; 303. Air outlet pipe; 304. Sealing sleeve; 305. Through hole; 4. Agitation mechanism; 401. Rotating shaft; 402. Drive blade; 403. Agitator blade; 404. Connecting sleeve; 5. Sewage discharge mechanism; 501. Connecting pipe; 502. Control valve; 503. Drain pipe; 6. Support; 601. Base plate; 602. Anti-slip pad; 603. Support rod; 604. Fixing hole. Detailed Implementation

[0013] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0014] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.

[0015] It should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0016] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0017] Reference Figures 1 to 5The present invention will now be described. The heat recovery device for thermal and power engineering includes a fixed box 1, a box cover 2 on top of the fixed box 1, a heat exchange mechanism 3 fixedly connected inside the fixed box 1, a drain mechanism 5 fixedly connected to the lower part of the heat exchange mechanism 3, a support 6 fixedly connected to the lower part of the fixed box 1, and an agitation mechanism 4 movably connected inside the heat exchange mechanism 3. The agitation mechanism 4 includes a rotating shaft 401 movably connected inside the heat exchange mechanism 3, which can rotate inside the heat exchange tube 302. A drive blade 402 is fixedly connected to the middle of the outer side of the rotating shaft 401, and connecting sleeves 404 are fixedly connected to both sides of the outer side of the rotating shaft 401. Agitation blades 403 are fixedly connected to the outer side of the connecting sleeves 404. In use… The heat exchange liquid is introduced into the housing 101 through the water inlet pipe 204, and then the flue gas with a large amount of heat is introduced into the heat exchange tube 302 through the air inlet pipe 301. The flue gas with a large amount of heat exchanges heat with the heat exchange liquid, and the flue gas after heat exchange is discharged through the air outlet pipe 303. When the flue gas flows in the heat exchange tube 302, it can drive the drive blade 402 to rotate the shaft 401, thereby causing the connecting sleeve 404 to drive the stirring blade 403 to stir the heat exchange liquid. The stirring of the stirring blade 403 makes the heat exchange liquid and the heat exchange tube 302 fully contacted, so that the heat exchange liquid is heated more evenly and the heat in the flue gas is fully utilized, thus improving the heat utilization rate.

[0018] In another embodiment of the present invention, the fixed box 1 includes a box body 101. The box body 101 has first connecting holes 102 on both sides. The first connecting holes 102 are used to fix the air inlet pipe 301 and the air outlet pipe 303. A water outlet pipe 103 is fixedly connected to the lower right side of the box body 101. The water outlet pipe 103 is used to discharge the heat exchange liquid after the heat exchange is completed. The lower part of the box body 101 has a second connecting hole 104. The second connecting hole 104 is used to fix the connecting pipe 501.

[0019] In another embodiment of this utility model, the cover 2 includes a sealing gasket 202 placed on the top of the box body 101. The sealing gasket 202 is made of rubber and is used to ensure better sealing between the cover 201 and the box body 101. The top of the sealing gasket 202 is fixedly connected to the cover 201. The cover 201 and the sealing gasket 202 are movably connected by a bolt 203. The top of the box body 101 is provided with a threaded groove that matches the bolt 203. The cover 201 can be fixed by screwing the bolt 203 into the threaded groove. The top of the cover 201 is fixedly connected to a water inlet pipe 204, which is used to introduce hot liquid into the box body 101.

[0020] In another embodiment of this utility model, the heat exchange mechanism 3 includes an inlet pipe 301 fixedly connected to the left side of the inside of the housing 101 and an outlet pipe 303 fixedly connected to the right side of the inside of the housing 101. The inlet pipe 301 is used for the entry of flue gas, and the outlet pipe 303 is used for the discharge of flue gas. A heat exchange pipe 302 is fixedly connected between the inlet pipe 301 and the outlet pipe 303. A sealing sleeve 304 is fixedly connected to the outside of the heat exchange pipe 302. The sealing sleeve 304 is used to ensure better sealing between the heat exchange pipe 302 and the rotating shaft 401. A through hole 305 is provided at the lower part of the heat exchange pipe 302. The through hole 305 is used for fixing the connecting pipe 501.

[0021] In another embodiment of this utility model, the sewage discharge mechanism 5 includes a connecting pipe 501 fixedly connected to the lower part of the heat exchange tube 302, a control valve 502 installed on the connecting pipe 501, and a drain pipe 503 fixedly connected to the lower part of the connecting pipe 501. After a period of use, the moisture and impurities contained in the flue gas will accumulate in the heat exchange tube 302, and under the action of gravity, the moisture and impurities will fall into the connecting pipe 501. By opening the control valve 502, the moisture and impurities can flow from the connecting pipe 501 into the drain pipe 503 for discharge.

[0022] In another embodiment of this utility model, the support 6 includes a support rod 603 fixedly connected to the lower part of the housing 101. The lower part of the support rod 603 is fixedly connected to a base plate 601. The lower part of the base plate 601 is fixedly connected to an anti-slip pad 602. The anti-slip pad 602 is made of rubber and has a certain anti-slip effect, which can stably fix the support 6. The base plate 601 and the anti-slip pad 602 are both provided with fixing holes 604. The support 6 can be fixed on the plane through the fixing holes 604.

[0023] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A heat recovery device for thermal and power engineering, comprising a fixed box (1), characterized in that: The top of the fixed box (1) is covered with a box cover (2). A heat exchange mechanism (3) is fixedly connected inside the fixed box (1). A sewage discharge mechanism (5) is fixedly connected to the lower part of the heat exchange mechanism (3). A support (6) is fixedly connected to the lower part of the fixed box (1). An agitation mechanism (4) is movably connected inside the heat exchange mechanism (3). The agitation mechanism (4) includes a rotating shaft (401) movably connected inside the heat exchange mechanism (3). A drive blade (402) is fixedly connected to the middle of the outer side of the rotating shaft (401). A connecting sleeve (404) is fixedly connected to both sides of the outer side of the rotating shaft (401). An agitation blade (403) is fixedly connected to the outer side of the connecting sleeve (404).

2. The heat recovery device for thermal and power engineering as described in claim 1, characterized in that: The fixed box (1) includes a box body (101), and a first connection hole (102) is provided on both sides of the box body (101). A water outlet pipe (103) is fixedly connected to the lower right side of the box body (101), and a second connection hole (104) is provided at the lower part of the box body (101).

3. The heat recovery device for thermal and power engineering as described in claim 1, characterized in that: The cover (2) includes a sealing gasket (202) placed on top of the box body (101), the top of the sealing gasket (202) is fixedly connected to the cover body (201), the cover body (201) and the interior of the sealing gasket (202) are movably connected by bolts (203), and the top of the cover body (201) is fixedly connected to a water inlet pipe (204).

4. The heat recovery device for thermal and power engineering as described in claim 1, characterized in that: The heat exchange mechanism (3) includes an air inlet pipe (301) fixedly connected to the left side of the box (101) and an air outlet pipe (303) fixedly connected to the right side of the box (101). A heat exchange pipe (302) is fixedly connected between the air inlet pipe (301) and the air outlet pipe (303). A sealing sleeve (304) is fixedly connected to the outside of the heat exchange pipe (302). A through hole (305) is provided at the lower part of the heat exchange pipe (302).

5. The heat recovery device for thermal and power engineering as described in claim 1, characterized in that: The sewage discharge mechanism (5) includes a connecting pipe (501) fixedly connected to the lower part of the heat exchange tube (302), a control valve (502) is installed on the connecting pipe (501), and a drain pipe (503) is fixedly connected to the lower part of the connecting pipe (501).

6. The heat recovery device for thermal and power engineering as described in claim 1, characterized in that: The support (6) includes a support rod (603) fixedly connected to the lower part of the box (101). The lower part of the support rod (603) is fixedly connected to a base plate (601). The lower part of the base plate (601) is fixedly connected to an anti-slip pad (602). The base plate (601) and the anti-slip pad (602) are both provided with fixing holes (604).