Heat energy recovery device for heat energy and power engineering
By designing a spiral heat exchange tube and water storage cylinder with a double helix structure, the problems of flue gas retention time and dust cleaning in the existing heat energy recovery device are solved, and more efficient heat energy recovery and heat exchange effects are achieved.
Patent Information
- Application Number
- CN202421048797.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-15
- Publication Date
- 2025-01-03
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the existing heat recovery devices, the straight and snake-shaped tube structures have shortcomings in extending the flue gas retention time and cleaning dust, resulting in insufficient heat conversion and dust affecting the heat exchange effect.
A heat exchange assembly including a detachable installation at the bottom is designed, and a spiral heat exchange tube with a double helix structure is designed to extend the flue gas retention time and facilitate cleaning through the spiral structure, and combine the water storage cylinder and the thermally conductive components to achieve thermal energy recovery.
Effectively extend the retention time of flue gas in the heat exchange tube, improve the heat conversion rate, and achieve uniform heat dissipation and heat radiation through the double helix structure, improve the heat exchange effect, and solve the shortcomings of the straight and snake tube structures.
Smart Images
Figure CN222298571U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of heat recovery, and more specifically to a heat recovery device for heat and power engineering. Background Art
[0002] Thermal energy and power engineering includes modern energy science and technology, information science and technology, and management technology, etc., and mainly involves the design, operation, automatic control, information processing, computer application, environmental protection, refrigeration and air conditioning, efficient and clean utilization of energy, and development of new energy for thermal energy and power equipment and systems. Waste heat refers to the sensible heat and latent heat that are not reasonably utilized in the original design of the energy-consuming devices of industrial enterprises that have been put into operation due to the limitations of historical, technical, and conceptual factors. It includes waste heat from high-temperature exhaust gas, waste heat from cooling media, waste heat from waste steam and waste water, waste heat from high-temperature products and slag, waste heat from chemical reactions, and waste heat from combustible waste gas, waste liquid, and waste materials.
[0003] In thermal energy and power engineering, flue gas with a large amount of heat needs to be discharged through the exhaust pipe, which not only affects the air environment, but also the heat carried in the flue gas will be lost. Therefore, in thermal energy and power engineering, the flue gas is usually recovered and used for boiler heating and other tasks. The main component of the current traditional heat recovery device is the flue gas heat exchange tube. The water is heated by passing the flue gas carrying heat into the heat exchange tube. The common heat exchange tubes are mainly straight tubes or serpentine tube structures. For straight tubes, it is convenient to clean the inside to avoid the influence of flue gas dust covering the heat exchange effect, but it is not convenient to extend the residence time of the flue gas, resulting in the heat in the flue gas cannot be fully converted. For serpentine tubes, it can effectively extend the residence time of the flue gas, but it is not convenient to clean the flue gas dust covering the inner wall, which affects the heat exchange effect. In view of this, we propose a heat recovery device for thermal energy and power engineering. Utility Model Content
[0004] The purpose of the utility model is to overcome the deficiencies of the prior art, meet actual needs, and provide a heat recovery device for thermal energy and power engineering to solve the current common heat exchange tubes are mainly straight tubes or serpentine tube structures. For straight tubes, it is convenient to clean the inside to avoid smoke dust covering and affecting the heat exchange effect, but it is not convenient to extend the residence time of the smoke, resulting in the heat in the smoke cannot be fully converted. For serpentine tubes, it can effectively extend the residence time of the smoke, but it is not convenient to clean the smoke dust covering the inner wall, affecting the technical problem of heat exchange effect.
[0005] In order to solve the above technical problems, the utility model provides the following technical solutions: a heat recovery device for thermal energy and power engineering, comprising a heat exchange component with a base component detachably mounted on the bottom;
[0006] The heat exchange assembly comprises a water storage cylinder with end seats sealed and fixedly installed at both ends, the interior of the end seats forms a cavity structure, and a heat exchange kit for allowing smoke to circulate to achieve a heat exchange effect is arranged in the water storage cylinder;
[0007] The heat exchange kit includes a heat exchange component with heat conducting components fixedly arranged at equal intervals on the outside;
[0008] The heat exchange component includes multiple groups of spiral heat exchange tubes symmetrically forming a double helix structure. The multiple groups of spiral heat exchange tubes are all spiral structures, and the spiral curvature of the multiple groups of spiral heat exchange tubes gradually increases from the axis of the heat conduction component toward the edge position.
[0009] The utility model designs the structure of the heat exchange component and realizes the circulation of flue gas carrying heat through the spiral heat exchange tube, so that the flue gas circulating in the spiral heat exchange tube exchanges heat with the water inside the water storage cylinder, thereby realizing the effect of heat energy recovery. The spiral heat exchange tube is designed to be a spiral structure, and the flue gas can extend its residence time through the spiral structure when circulating in the spiral heat exchange tube. Compared with straight tubes, it is more conducive to extending the retention time, and compared with serpentine tubes, it is more convenient to clean, which solves the problem that the commonly used heat exchange tubes are mainly straight tubes or serpentine tube structures. For straight tubes, it is convenient to clean the inside to avoid smoke dust covering and affecting the heat exchange effect, but it is not convenient to extend the residence time of the smoke, resulting in the failure to fully convert the heat in the smoke. For serpentine tubes, it can effectively extend the residence time of the smoke, but it is not convenient to clean the smoke dust covering the inner wall, which affects the heat exchange effect.
[0010] Preferably, the heat-conducting component comprises a heat-conducting plate with mounting holes for fixing and plugging the spiral heat exchange tube, and semicircular grooves for connecting the water flow inside the water storage cylinder are symmetrically provided on the outer edge surface of the heat-conducting plate.
[0011] Preferably, both ends of the spiral heat exchange tube are connected with connecting tubes, and the connecting tube extends away from one end of the spiral heat exchange tube and penetrates into the cavity of the end seat.
[0012] Preferably, an air inlet pipe connected to the internal cavity thereof is fixedly mounted in the center of the upper end surface of one of the end seats, and a second flange is connected to the top end structure of the air inlet pipe.
[0013] Preferably, an air outlet pipe connected to the internal cavity thereof is fixedly mounted in the center of the lower end surface of the other end seat, and a flange plate 1 is connected to the bottom end structure of the air outlet pipe.
[0014] Preferably, the base assembly includes a symmetrically arranged support structure, and the support structure includes symmetrically arranged support plates. The tops of the opposing sides of the support plates are each constructed with a support plate for supporting the end seat, and the lower end surface of the support plate and one side of the support plate are respectively and equidistantly provided with fixing bolts 2 and 1 which can be screwed into the end seat to achieve a fixing effect.
[0015] Preferably, the support plate structure in the same support structure is connected with a connecting plate 1, and the support plate structure arranged on the same side is connected with a connecting plate 2.
[0016] Compared with the prior art, the beneficial effects of the utility model are:
[0017] 1. The utility model designs the structure of the heat exchange component and realizes the circulation of flue gas carrying heat through the spiral heat exchange tube, so that the flue gas circulating in the spiral heat exchange tube exchanges heat with the water inside the water storage cylinder, thereby realizing the effect of heat energy recovery. The spiral heat exchange tube is designed to be a spiral structure, and the flue gas can extend its residence time through the spiral structure when circulating in the spiral heat exchange tube. Compared with straight tubes, it is more conducive to extending the residence time, and compared with serpentine tubes, it is more convenient to clean, which solves the problem that the commonly used heat exchange tubes are mainly straight tubes or serpentine tube structures. For straight tubes, it is convenient to clean the inside to avoid the influence of flue gas dust covering the heat exchange effect, but it is not convenient to extend the residence time of the flue gas, resulting in the failure to fully convert the heat in the flue gas. For serpentine tubes, it can effectively extend the residence time of the flue gas, but it is not convenient to clean the flue gas dust covering the inner wall, which affects the heat exchange effect.
[0018] 2. The utility model also designs the heat exchange component to be a plurality of spiral heat exchange tube structures that symmetrically form a double helix structure. The double helix structure is conducive to achieving the effect of uniformly dissipating the heat of the water inside the water storage cylinder under a large span, and the heat in the flue gas is also radiated in the form of a double helix, which is conducive to improving the heat exchange effect. It further solves the problem that the common heat exchange tubes are mainly straight tubes or serpentine tube structures. For straight tubes, it is convenient to clean the inside to avoid smoke dust covering and affecting the heat exchange effect, but it is not convenient to extend the residence time of the smoke, resulting in the heat in the smoke cannot be fully converted. For serpentine tubes, it can effectively extend the residence time of the smoke, but it is not convenient to clean the smoke dust covering the inner wall, which affects the heat exchange effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0019] Figure 1 It is a structural schematic diagram of the utility model;
[0020] Figure 2 It is a structural schematic diagram of the base assembly of the utility model;
[0021] Figure 3 This is a schematic diagram of the structure of the heat exchange component of the utility model;
[0022] Figure 4 For this utility model Figure 3 A cross-sectional view of
[0023] Figure 5 This is a schematic diagram of the structure of the heat exchange kit of the utility model;
[0024] Figure 6 It is a structural schematic diagram of the heat exchange component of the utility model;
[0025] Figure 7 It is a structural schematic diagram of the heat-conducting component of the utility model.
[0026] Description of the numbers in the figure:
[0027] 1. Base assembly; 101. Support plate; 102. Support plate; 103. Fixing bolt 1; 104. Fixing bolt 2; 105. Connecting plate 1; 106. Connecting plate 2; 2. Heat exchange assembly; 201. End seat; 202. Air outlet pipe; 203. Flange 1; 204. Air inlet pipe; 205. Flange 2; 206. Water storage cylinder; 3. Heat exchange kit; 4. Heat exchange component; 401. Spiral heat exchange tube; 402. Connecting tube; 5. Heat conduction component; 501. Heat conduction plate; 502. Mounting hole; 503. Semicircular groove. DETAILED DESCRIPTION
[0028] like Figure 1 , Figure 3 , Figure 4 , Figure 5 and Figure 6 As shown, the utility model relates to a heat recovery device for thermal energy and power engineering, comprising a heat exchange component 2 with a base component 1 detachably installed on the bottom, the heat exchange component 2 comprises a water storage cylinder 206 with end seats 201 sealed and fixedly installed at both ends, the interior of the end seat 201 forms a cavity structure, and a heat exchange kit 3 for flue gas to circulate to achieve a heat exchange effect is arranged in the water storage cylinder 206, the heat exchange kit 3 comprises a heat exchange component 4 with a heat conducting component 5 fixedly arranged at equal intervals on the outside, the heat exchange component 4 comprises a plurality of groups of spiral heat exchange tubes 401 symmetrically forming a double helix structure, the plurality of groups of spiral heat exchange tubes 401 are all in a spiral structure, and the spiral curvature of the plurality of groups of spiral heat exchange tubes 401 gradually increases from the axis of the heat conducting component 5 toward the edge position.
[0029] like Figure 5-Figure 7 As shown, in an embodiment of the utility model, the heat-conducting component 5 includes a heat-conducting plate 501 with an installation hole 502 for fixing and plugging the spiral heat exchange tube 401, and semicircular grooves 503 for connecting the water flow inside the water storage cylinder 206 are symmetrically provided on the outer edge surface of the heat-conducting plate 501.
[0030] like Figure 3 , Figure 5 and Figure 6 As shown, in an embodiment of the present utility model, both ends of the spiral heat exchange tube 401 are connected with connecting tubes 402, and the connecting tube 402 extends from one end of the spiral heat exchange tube 401 to penetrate into the cavity of the end seat 201, and an air inlet pipe 204 connected to its internal cavity is fixedly installed in the center of the upper end face of one end seat 201, and the top end of the air inlet pipe 204 is connected with flange 205, and an air outlet pipe 202 connected to its internal cavity is fixedly installed in the center of the lower end face of the other end seat 201, and the bottom end of the air outlet pipe 202 is connected with flange 1 203.
[0031] like Figure 1 and Figure 2 As shown, in an embodiment of the utility model, the base assembly 1 includes a symmetrically arranged support structure, the support structure includes symmetrically arranged support plates 101, the top of each facing side of the support plates 101 is constructed with a support plate 102 for supporting the end seat 201, the lower end surface of the support plate 102 and one side of the support plate 101 are respectively equidistantly provided with a fixing bolt 2 104 and a fixing bolt 1 103 which can be screwed into the end seat 201 to achieve a fixing effect, a connecting plate 105 is structured to connect between the support plates 101 in the same support structure, and a connecting plate 2 106 is structured to connect between the support plates 101 arranged on the same side.
[0032] Working principle: This embodiment provides a heat recovery device for thermal energy and power engineering. When in use, the water storage cylinder 206 is filled with water in advance, and then the flue gas carrying heat is passed into the cavity inside the end seat 201 through the air inlet pipe 204, so that the flue gas enters through the connecting pipe 402 at one end of the spiral heat exchange tube 401 and circulates inside it. During the circulation of the flue gas inside the spiral heat exchange tube 401, heat exchange can be carried out with water, thereby realizing heat energy recovery. When the flue gas is discharged from the connecting pipe 402 at the other end of the spiral heat exchange tube 401 into the cavity inside the end seat 201, the flue gas that has completed heat exchange can be discharged through the air outlet pipe 202.
[0033] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.
Claims
1. A heat recovery device for thermal energy and power engineering, characterized in that: It comprises a heat exchange component (2) with a base component (1) detachably mounted on the bottom; The heat exchange component (2) comprises a water storage cylinder (206) with end seats (201) sealed and fixedly mounted at both ends, the end seat (201) forming a cavity structure inside, and a heat exchange kit (3) for allowing smoke to circulate to achieve a heat exchange effect is arranged inside the water storage cylinder (206); The heat exchange kit (3) comprises a heat exchange component (4) on which heat conducting components (5) are fixedly arranged at equal intervals; The heat exchange component (4) comprises a plurality of groups of spiral heat exchange tubes (401) symmetrically forming a double spiral structure, the plurality of groups of spiral heat exchange tubes (401) all present a spiral structure, and the spiral curvature of the plurality of groups of spiral heat exchange tubes (401) gradually increases from the axis of the heat conducting component (5) toward the edge position.
2. The heat recovery device for thermal energy and power engineering according to claim 1, characterized in that: The heat-conducting component (5) comprises a heat-conducting plate (501) having an installation hole (502) provided therein for fixing and plugging the spiral heat exchange tube (401), and semicircular grooves (503) for connecting the water flow inside the water storage cylinder (206) are symmetrically provided on the outer edge surface of the heat-conducting plate (501).
3. The heat recovery device for thermal energy and power engineering according to claim 1, characterized in that: Both ends of the spiral heat exchange tube (401) are connected to connecting tubes (402), and the connecting tube (402) extends away from one end of the spiral heat exchange tube (401) and penetrates into the cavity of the end seat (201).
4. The heat recovery device for thermal energy and power engineering according to claim 1, characterized in that: An air intake pipe (204) connected to the internal cavity thereof is fixedly mounted in the center of the upper end surface of one of the end seats (201), and the top end structure of the air intake pipe (204) is connected to a second flange (205).
5. The heat recovery device for thermal energy and power engineering according to claim 4, characterized in that: An air outlet pipe (202) connected to the internal cavity thereof is fixedly mounted in the center of the lower end surface of the other end seat (201), and the bottom end structure of the air outlet pipe (202) is connected to a flange plate 1 (203).
6. The heat recovery device for thermal energy and power engineering according to claim 1, characterized in that: The base assembly (1) comprises a symmetrically arranged support structure, wherein the support structure comprises symmetrically arranged support plates (101), the tops of the opposing sides of the support plates (101) are each configured with a support plate (102) for supporting the end seat (201), and the lower end surface of the support plate (102) and one side of the support plate (101) are respectively equidistantly provided with a second fixing bolt (104) and a first fixing bolt (103) which can be screwed into the end seat (201) to achieve a fixing effect.
7. The heat recovery device for thermal energy and power engineering according to claim 6, characterized in that: The support plates (101) in the same support structure are connected to a first connecting plate (105), and the support plates (101) arranged on the same side are connected to a second connecting plate (106).