Steam condensate water recycling heat exchange heating device

Abstract

The invention discloses a heat exchange and heating device for recycling steam condensate water, relates to the technical field of heat exchange and heating, and solves the problems of low heat exchange efficiency and poor heat exchange effect when a heating medium generated by coal mining is subjected to heat exchange. And meanwhile, the problem that heat exchange fins in the heat exchange heating device are inconvenient to disassemble, maintain and clean is solved. The steam condensate water recycling heat exchange heating device comprises a heat exchange support. The condensation heat exchange structure is mounted at the top of the heat exchange bracket; the condensate water collecting tank is connected with the condensation heat exchange structure through a screw; and the heating medium shunting conveying assembly is connected with the bottom of the condensation heat exchange structure through a screw. According to the heat exchanger, the surface area of a heating medium during heat exchange on the side faces of the heat exchange fins can be increased, and more heat dissipation space is provided. And meanwhile, the moving path of the heating medium can be optimized, so that the flowing of the heating medium is smoother, eddy current and resistance in the moving process of the heating medium are reduced, and the heat transfer effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat exchange heating, and in particular to a heat exchange heating device for recycling steam condensate. Background Art

[0002] Steam condensate recovery is the process of recovering high-temperature condensate from a steam system. This maximizes the use of the condensate's heat, conserving both water and fuel. The advantages of steam condensate recovery include high economic returns and a long equipment lifespan.

[0003] In coal mining operations, steam condensate recovery can significantly reduce energy consumption. For example, one ton of condensate at 80°C contains approximately 335 kJ of heat, equivalent to the calorific value of 0.03 tons of standard coal. Recycling 10 tons of condensate per hour (at 80°C) can save approximately 91.6 tons of standard coal annually, equivalent to reducing carbon emissions by approximately 230 tons.

[0004] A search revealed a steam-powered heating condensate recovery device with publication number CN115752006A, comprising a main body and a recovery mechanism, wherein the recovery mechanism is provided below the main body; the main body comprises: a tank body, a feed pipe, a discharge pipe, a heat exchange pipe, a baffle, an air inlet pipe, and an air outlet pipe; the feed pipe is fixedly connected to the top of the tank body, the discharge pipe is fixedly connected to the bottom of the tank body, the heat exchange pipe is fixedly connected to the bottom of the feed pipe, the baffle is fixedly connected to the inner wall of the heat exchange pipe, the air inlet pipe is fixedly connected to the bottom left of the tank body, and the air outlet pipe is fixedly connected to the top right of the tank body; the recovery mechanism comprises: a steam box, a water pipe, a condensate pipe, a filter box, a hot water tank, a motor, a stirring rod, and a water outlet pipe; the water pipe is fixedly connected to the bottom of the steam box. In the present invention, the stirring rod is driven by the motor to mix the condensate and hot water inside the hot water tank, thereby accelerating the mixing efficiency of the condensate and hot water, and at the same time improving the heating efficiency before reaching the steam-powered heater, thereby achieving the effect of improving the mixing efficiency of the condensate and hot water and accelerating the recycling speed.

[0005] A search revealed a condensate recycling device with publication number CN118463651A, comprising a condensate collection tank and a drainage pipe disposed on the condensate collection tank for introducing condensate. The device also includes a cooling mechanism disposed between and in communication with the condensate collection tank and the drainage pipe, configured to reduce the temperature of the condensate introduced into the condensate collection tank; and a drive mechanism disposed on the cooling mechanism for driving the cooling mechanism. The cooling mechanism enables heat exchange before the condensate is introduced into the condensate collection tank, thus avoiding heat loss caused by flash evaporation upon entry into the condensate collection tank due to a decrease in boiling point while maintaining a high temperature.

[0006] However, the heat exchange heating device has the following defects when used: 1. When existing heat exchange heating devices exchange heat (via condensed water) with the heat medium generated during coal mining (heating belts such as those used in coal mining conveyors), the heat medium must pass through the heat exchange fins within the device to increase the contact area with the refrigerant. However, when the heat medium moves along the sides of the heat exchange fins, its flow is relatively smooth, resulting in poor fluid disturbance, low heat transfer area, and low heat transfer efficiency. Furthermore, when the heat medium moves to the edges of the heat exchange fins, it thickens the boundary layer (because the edges of the heat exchange fins are flat), resulting in a decrease in heat transfer efficiency and a high risk of localized overheating or overcooling. 2. When assembling existing heat exchange heating devices, it is necessary to install multiple heat exchange fins for heat exchange operations inside the heat exchange heating device, and leave a gap between two adjacent heat exchange fins. The movement of the heat medium in the gap enables indirect contact with the refrigerant and heat exchange operations. However, when assembling the heat exchange fins, the traditional method generally uses bolt installation to fix the heat exchange fins. This method requires a long time to disassemble each heat exchange fin when the heat exchange fins need to be disassembled, maintained, and cleaned later, which is inefficient. At the same time, the heat exchange fin part assembled with bolts will affect the normal flow of heat medium at the edge of the heat exchange fin, affecting the rapid entry and exit of the heat medium. Summary of the Invention

[0007] The object of the present invention is to provide a steam condensate recovery and utilization heat exchange heating device to solve the problems raised in the above background technology.

[0008] In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical solutions: The present invention provides a steam condensate recycling and heat exchange heating device, comprising: a heat exchange bracket; a condensation heat exchange structure installed on the top of the heat exchange bracket; a condensation water collection tank connected to the condensation heat exchange structure by screws; and a heat medium diversion and transportation component connected to the bottom of the condensation heat exchange structure by screws. The condensing heat exchange structure includes: a heat exchange container supported and positioned on the top of the heat exchange bracket; heat exchange fins arranged inside the heat exchange container; positioning protrusions that abut the left and right sides of the heat exchange fins; an elastic positioning component connected to the positioning protrusions and installed inside the heat exchange container; a heat medium sealing and conveying component arranged inside the heat exchange container and located outside the elastic positioning component; a U-shaped pipe installed inside the plurality of heat exchange fins and extending to the outside of the heat exchange container. The bottom of the heat medium sealed conveying assembly is connected to the heat medium diversion conveying assembly by screws, and one end of the U-shaped pipe is installed with a condensed water collection tank by screws.

[0009] As a preferred solution of the present invention, a triangular bracket is installed on one side of the top of the heat exchange bracket by screws, an oblique bracket is welded to the side of the triangular bracket, and the tops of the triangular bracket and the oblique bracket are both provided with arc-shaped supporting surfaces, and the top support of the arc-shaped supporting surface is positioned with a condensate collection tank.

[0010] As a preferred embodiment of the present invention, the heat exchange container is composed of a bottom cover on the left, a tank body in the middle, and a top cover on the left. The bottom cover and the tank body in the middle are connected by screws, and the tank body in the middle is connected to the top cover on the left by screws. Among them, a circulation pipeline is opened inside the top cover, U-shaped pipes are circulated inside the two circulation pipelines, a condensate collection tank is installed on the outside of one of the circulation pipelines by bolts, and an elastic positioning component is set inside the tank body.

[0011] As a preferred solution of the present invention, an assembly hole is provided at an eccentric position inside the heat exchange fin, a U-shaped pipe is provided through the assembly hole, and a gap is left between two adjacent heat exchange fins.

[0012] As a preferred solution of the present invention, the elastic positioning assembly includes: an annular bracket body installed inside the tank body; a flow portion provided on the inner wall of the annular bracket body; a horizontal groove provided inside the annular bracket body and located on the side of the flow portion; a horizontal slider slidably connected to the inside of the horizontal groove; a spring connected to both sides of the bottom of the horizontal slider; a lifting slider connected to the spring and movably arranged inside the horizontal slider; and a rubber resistance block installed on the top of the lifting slider. Wherein, a positioning protrusion is installed at the bottom of the lifting slider.

[0013] As a preferred solution of the present invention, the horizontal slider is provided with a plurality of them, and a heat exchange fin is provided between two adjacent horizontal sliders and located between two positioning protrusions. Vertical grooves are provided on the front and rear sides of the interior of the lifting slider, and the vertical grooves are slidably connected to the protrusions on the inner wall of the horizontal slider. The springs are provided on the left and right sides of the raised portion, and a heat medium sealing and conveying assembly is assembled on the inner side of the annular bracket body.

[0014] As a preferred embodiment of the present invention, the heat medium sealed conveying assembly includes: a heat insulation plate arranged inside the tank body and equipped with the annular bracket body on the inner side; an arc-shaped hillock arranged on the upper and lower sides of the heat insulation plate; a heat medium conveying channel that abuts the side of the arc-shaped hillock and is installed inside the heat insulation plate; a vertical heat medium pipe arranged outside the heat medium conveying channel and connected to the upper and lower sides of the tank body; and a conical surface arranged at the top of the heat medium conveying channel.

[0015] As a preferred solution of the present invention, a heat medium diversion and conveying assembly is installed at the bottom of the vertical heat medium pipe at the bottom by screws, and the cross-sectional area of ​​the conical surface close to the heat exchange fins is smaller than the cross-sectional area away from the heat exchange fins.

[0016] As a preferred embodiment of the present invention, the heat medium diversion and delivery assembly includes: a liquid pump connected to the vertical heat medium pipe by screws; a central conduit connected to the liquid pump by screws; a diversion conduit connected to the central conduit; and a diverter connected to the diversion conduit by screws.

[0017] Wherein, the liquid inlet of the diverter is connected to the coal mining heat medium channel.

[0018] Compared with the existing technology, one or more of the above technical solutions have the following beneficial effects: 1. In a steam condensate recycling and heat exchange heating device, a heat exchange method (gap) is designed for the refrigerant flowing inside the U-shaped pipe and the heat medium flowing outside the U-shaped pipe to exchange heat. This ensures that the heat medium and the refrigerant do not contact each other, preventing them from mixing and contaminating each other. Furthermore, when the heat medium flows outside the U-shaped pipe, the heat exchange space within the device is divided into multiple sections by means of multiple heat exchange fins. Each heat exchange fin has obliquely arranged outer protrusions on the eccentric portions on the left and right sides, and an intermediate protrusion in the middle. The outer and intermediate protrusions are connected by multiple oblique flow channels and intermediate flow channels. This increases the surface area (heat exchange) of the heat medium on the sides of the heat exchange fins, thereby providing more space for heat dissipation. Furthermore, it optimizes the heat medium's flow path, making the heat medium flow smoother, reducing the generation of eddy currents and resistance during the heat medium's flow, and improving the heat transfer effect. The outer protrusions on the edge of the heat exchange fins can reduce the probability of thickening of the heat exchange fins and achieve more uniform heat exchange. 2. In a steam condensate recycling and heat exchange heating device, when heat exchange operations are performed on the heat medium used in coal mining, the lifting slider can be squeezed against the inner wall structure of the heat exchange heating device when assembling the annular bracket body, so that the positioning protrusion at the bottom of the lifting slider can automatically move to the inside of the annular bracket body, automatically assembling and limiting the multiple heat exchange fins, thereby realizing automated heat exchange fin assembly and fixing operations. At the same time, the above-mentioned method of assembling the heat exchange fins can be used to automatically remove the heat exchange fins by pulling the annular bracket body out of the interior of the heat exchange heating device when the heat exchange fins need to be disassembled, maintained, or cleaned. This makes subsequent cleaning and maintenance of the heat exchange fin surface more convenient and quicker. 3. In a steam condensate recycling heat exchange heating device, by installing a heat insulation sheet on the outside of the heat exchange fins, the probability of heat leakage and loss caused by the movement of heat medium inside the heat exchange heating device during heat exchange operations can be reduced. At the same time, the connection between the heat insulation sheet and the heat medium transmission channel is assembled through a relatively sealed arc-shaped hillock and a vertical heat medium pipe structure, which can maximize the sealing of the connection between the heat medium transmission channel and the heat insulation sheet. When the heat medium moves from the inside of the heat insulation sheet to the inside of the heat medium transmission channel, and from the inside of the heat medium transmission channel to the inside of the heat insulation sheet, it is less likely to cause heat medium leakage. 4. In steam condensate recycling and heat exchange heating devices, the heat medium delivery structure, designed through split-flow transmission, ensures consistent heat medium delivery and heat exchange content and duration each time the heat medium is delivered to the heat exchange container, facilitating unified control of heat exchange time. Furthermore, after the heat medium from various parts of the splitter is delivered to the heat exchange container, sufficient time is left for centralized storage of additional heat medium within the container, facilitating continuous heat medium delivery and heat exchange operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings, which constitute a part of the present invention, are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute improper limitations on the present invention.

[0020] Furthermore, the terms "installed," "disposed," "provided with," "connected," "connected," and "socketed" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or electrical connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0021] Figure 1 This is a schematic diagram of the structure of the present invention after the entire assembly is completed; Figure 2 This is a schematic structural diagram of the present invention after the overall assembly is completed; Figure 3 This is a structural diagram of the connection between the heat exchange bracket and the condensed water collection tank of the present invention; Figure 4 This is a structural schematic diagram of the connection between the condensation heat exchange structure and the condensed water collection tank of the present invention; Figure 5 It is a schematic structural diagram of a cross-section of the condensation heat exchange structure of the present invention; Figure 6 This is an exploded view of the connection between the heat exchange container and the heat medium sealing conveying assembly of the present invention; Figure 7 is an exploded view of the connection between the elastic positioning assembly and the U-shaped pipe of the present invention; Figure 8 It is a structural schematic diagram of the connection between the elastic positioning component and the heat exchange fin of the present invention; Figure 9 This invention Figure 8 Schematic diagram of the structure of the enlarged area A in the middle; Figure 10 This is an exploded view of the elastic positioning assembly of the present invention after side section; Figure 11 It is a structural schematic diagram of the heat medium diversion and transportation assembly of the present invention; Figure 12 Schematic diagram of the structure of the heat exchange fin of the present invention; Figure 13 This invention Figure 12 Schematic diagram of the structure of the enlarged area B in the middle; In the picture: 10. Heat exchange bracket; 101. Triangular bracket; 102. Oblique bracket; 103. Arc-shaped support surface; 20. Condensation heat exchange structure; 201. Heat exchange container; 202. Heat exchange fins; 203. Positioning protrusions; 204. Elastic positioning assembly; 205. Heat medium sealing and conveying assembly; 206. U-shaped pipe; 2011, bottom cover; 2012, tank body; 2013, top cover; 2014, circulation pipeline; 2021, assembly hole; 2041, annular bracket body; 2042, flow portion; 2043, horizontal groove; 2044, horizontal slider; 2045, spring; 2046, lifting slider; 20461, vertical groove; 20462, raised portion; 2047, rubber contact block; 2051, thermal insulation sheet; 2052, arc-shaped hillock; 2053, heat medium conveying channel; 2054, vertical heat medium pipe; 2055, tapered surface; 30. Condensate collection tank; 40. Heat medium diversion and delivery assembly; 401. Liquid pump; 402. Centralizing conduit; 403. Diversion conduit; 404. Diverter; 50, outer protrusion; 501, oblique flow channel; 502, middle protrusion; 503, middle flow channel. DETAILED DESCRIPTION

[0022] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments in the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of this application.

[0023] Example 1

[0024] See also Figures 1-11 A steam condensate recycling and heat exchange heating device includes a heat exchange bracket 10; a condensation heat exchange structure 20 installed on the top of the heat exchange bracket 10; a condensation water collection tank 30 connected to the condensation heat exchange structure 20 by screws; a heat medium diversion and conveying assembly 40 connected to the bottom of the condensation heat exchange structure 20 by screws, and the condensation heat exchange structure 20 includes: a heat exchange container 201 supported and positioned on the top of the heat exchange bracket 10; heat exchange fins 202 arranged inside the heat exchange container 201; positioning plates on the left and right sides of the heat exchange fins 202. Protrusion 203; an elastic positioning assembly 204 connected to the positioning protrusion 203 and installed inside the heat exchange container 201; a heat medium sealing conveying assembly 205 arranged inside the heat exchange container 201 and located outside the elastic positioning assembly 204; a U-shaped pipe 206 installed inside a plurality of heat exchange fins 202 and extending to the outside of the heat exchange container 201, wherein the bottom of the heat medium sealing conveying assembly 205 is connected to the heat medium diversion conveying assembly 40 by screws, and one end of the U-shaped pipe 206 is installed with a condensate collection tank 30 by screws.

[0025] In the present invention, an assembly hole 2021 is provided at an eccentric position inside the heat exchange fin 202 , a U-shaped pipe 206 is provided running through the assembly hole 2021 , and a gap is left between two adjacent heat exchange fins 202 .

[0026] The operating principle is as follows: When heat exchange is performed on the heat medium generated by coal mining (for heating belts such as coal mining conveyors), the generated heat medium is diverted and transported to the interior of the heat exchange container 201 via the heat medium diversion and transport assembly 40. The heat medium is then distributed by multiple heat exchange fins 202, evenly distributing the heat medium to the space between two adjacent heat exchange fins 202. The refrigerant undergoing heat exchange is then piped into the interior of the U-shaped pipe 206. Through indirect contact between the refrigerant inside the U-shaped pipe 206 and the heat medium outside, heat exchange is achieved. After heat exchange, the refrigerant is heated by the heat medium, causing its temperature to rise. The refrigerant is then compressed and stored in the corresponding condensate collection tank 30, enabling condensate recycling. After heat exchange, the heat medium has a moderate internal heat level and can be transferred to the interior of the boiler room to heat the water tank there, effectively reducing resource waste.

[0027] Specific reference Figure 3 A triangular bracket 101 is installed on one side of the top of the heat exchange bracket 10 by screws, and an oblique bracket 102 is welded to the side of the triangular bracket 101. The tops of the triangular bracket 101 and the oblique bracket 102 are both provided with an arc-shaped supporting surface 103, and the top support of the arc-shaped supporting surface 103 is positioned to support the condensate collection tank 30.

[0028] In the steam condensate recycling and heat exchange heating device of the present invention, the design of the triangular bracket 101 and the oblique bracket 102 can stably support and position the condensate collection tank 30 against which the top arc-shaped support surface 103 thereof abuts.

[0029] Specific reference Figure 5 and Figure 6 The heat exchange container 201 consists of a bottom cover 2011 on the left, a tank body 2012 in the middle and a top cover 2013 on the left. The bottom cover 2011 and the tank body 2012 in the middle are connected by screws, and the tank body 2012 in the middle and the top cover 2013 on the left are connected by screws. A circulation pipeline 2014 is opened inside the top cover 2013, and U-shaped pipes 206 flow inside the two circulation pipelines 2014. A condensate collection tank 30 is installed on the outside of one circulation pipeline 2014 by bolts, and an elastic positioning component 204 is provided inside the tank body 2012.

[0030] In the steam condensate recycling and heat exchange heating device of the present invention, the assembled heat exchange container 201 structure allows for easy and convenient disassembly, maintenance, and cleaning of the heat exchange fins 202 inside the heat exchange container 201. The circulation pipe 2014 is connected to the two circulation ports of the U-shaped pipe 206, enabling the transport and movement of refrigerant, and recovering the refrigerant after heat exchange into the condensate collection tank 30 for storage.

[0031] Specific reference Figure 5 、 Figure 7 and Figure 8 The elastic positioning assembly 204 includes: an annular bracket body 2041 installed inside the tank body 2012; a flow portion 2042 opened on the inner wall of the annular bracket body 2041; a horizontal groove 2043 opened inside the annular bracket body 2041 and located on the side of the flow portion 2042; a horizontal slider 2044 slidably connected to the inside of the horizontal groove 2043; a spring 2045 connected to both sides of the bottom of the horizontal slider 2044; a lifting slider 2046 connected to the spring 2045 and movably arranged inside the horizontal slider 2044; a rubber resistance block 2047 installed on the top of the lifting slider 2046, wherein a positioning protrusion 203 is installed at the bottom of the lifting slider 2046.

[0032] In the present invention, several horizontal sliders 2044 are provided, and a heat exchange fin 202 located between two positioning protrusions 203 is provided between two adjacent horizontal sliders 2044. Vertical grooves 20461 are opened on the front and rear sides of the lifting slider 2046. The vertical grooves 20461 and the protrusions 20462 on the inner wall of the horizontal slider 2044 are slidably connected, wherein springs 2045 are provided on the left and right sides of the protrusions 20462, and the inner side of the annular bracket body 2041 is equipped with a heat medium sealing conveying assembly 205.

[0033] In the steam condensate recovery and heat exchange heating device of the present invention, when assembling multiple heat exchange fins 202, first, a horizontal slider 2044 on the inner side of the annular bracket body 2041 is assembled on the inner side of the heat medium sealing and conveying assembly 205, and the positioning protrusion 203 installed at the bottom of the horizontal slider 2044 is driven to move to the outside of the horizontal groove 2043 by squeezing the horizontal slider 2044. Afterwards, a heat exchange fin 202 is pressed against the side of the positioning protrusion 203, and by continuing to push the annular bracket body 2041 to move, the horizontal slider 2044 on the inner side of the next annular bracket body 2041 is moved to the inner side of the heat medium sealing and conveying assembly 205, and the other side of the heat exchange fin 202 is limited and fixed, so that a heat exchange fin 202 is located between the two positioning protrusions 203, and the positioning protrusion 203 automatically completes the limiting and fixing operation of the position of the heat exchange fin 202. Among them, the design of the spring 2045 ensures that after the annular bracket body 2041 is moved out from the inner side of the heat medium sealing and conveying assembly 205, the positioning protrusion 203 can be restored to its original position and the position limiting operation of the heat exchange fin 202 is released, which facilitates the disassembly, maintenance and cleaning of the heat exchange fin 202.

[0034] Specific reference Figure 8 、 Figure 9 and Figure 10The heat medium sealed conveying assembly 205 includes: a heat insulating sheet 2051 arranged inside the tank body 2012 and equipped with a ring bracket body 2041 on the inner side; arc-shaped hillocks 2052 arranged on the upper and lower sides of the heat insulating sheet 2051; a heat medium conveying channel 2053 that abuts the side of the arc-shaped hillock 2052 and is installed inside the heat insulating sheet 2051; a vertical heat medium pipe 2054 arranged outside the heat medium conveying channel 2053 and connected to the upper and lower sides of the tank body 2012; and a conical surface 2055 arranged at the top of the heat medium conveying channel 2053.

[0035] In the present invention, a heat medium diversion and delivery assembly 40 is installed at the bottom of the vertical heat medium pipe 2054 at the bottom by screws, and the cross-sectional area of ​​the tapered surface 2055 close to the heat exchange fins 202 is smaller than the cross-sectional area away from the heat exchange fins 202.

[0036] In the steam condensate recycling and heat exchange heating device of the present invention, the design of the thermal insulation sheet 2051 reduces the probability of heat volatilization during heat exchange. The curved hillock 2052 matches the structural shape of the thermal insulation sheet 2051 and the heat medium transport channel 2053, ensuring that heat medium leakage does not occur during transport. Furthermore, the tapered surface 2055 within the heat medium transport channel 2053 increases the cross-sectional area of ​​heat medium input and output, achieving more efficient heat medium transport.

[0037] Specific reference Figure 11 The heat medium diversion and transportation component 40 includes: a liquid pump 401 connected to the vertical heat medium pipe 2054 by screws; a central conduit 402 connected to the liquid pump 401 by screws; a diversion conduit 403 connected to the central conduit 402; and a diverter 404 connected to the diversion conduit 403 by screws, wherein the liquid inlet of the diverter 404 is connected to the coal mine mining heat medium channel.

[0038] In the steam condensate recycling and heat exchange heating device of the present invention, the diverted delivery of heat medium ensures that the heat medium content and rate of delivery to the heat exchange heating device are relatively consistent each time, and the heat exchange duration is consistent when the heat medium is delivered to the heat exchange heating device and undergoes heat exchange. Furthermore, the diverter 404 facilitates the storage of relatively consistent heat medium content within the device, facilitating continuous and uniform heat exchange operation.

[0039] Example 2

[0040] During use of the present invention, it was found that when heat exchange operation is performed through indirect contact between the gaps between the heat exchange fins 202 and the heat medium flowing in the gaps and the refrigerant flowing inside the U-shaped pipe 206, the heat medium flows on the side of the heat exchange fins 202 for a short time, and the mixing and contact time with the temperature (cold air) emitted by the solution inside the U-shaped pipe 206 is short, resulting in low and poor heat exchange effect on the heat medium.

[0041] For this purpose, refer specifically to Figure 12 and Figure 13 A plurality of outer protrusions 50 are arranged in a ring-shaped and equidistant manner on the eccentric parts on the left and right sides of the heat exchange fin 202, and an oblique flow channel 501 is formed between two adjacent outer protrusions 50. An intermediate protrusion 502 is provided in the middle of the left and right sides of the heat exchange fin 202, and an intermediate flow channel 503 begins inside the intermediate protrusion 502, wherein the intermediate flow channel 503 and the oblique flow channel 501 are connected.

[0042] In the adjustable air heat exchanger of the present invention, through the design of the structural shape of the outer protrusion 50 and the middle protrusion 502, the heat medium can increase the surface area of ​​heat dissipation in the protrusions on the left and right sides of the heat exchange fins 202, thereby providing more space for heat dissipation. At the same time, the structural design of the oblique flow channel 501 and the middle flow channel 503 being connected can optimize the flow path of the heat medium, making the flow of the heat medium inside the container smoother, reducing the generation of eddy currents and resistance, and improving the heat transfer effect. In addition, the design of the edge structure formed by the outer protrusion 50 and the heat exchange fins 202 can reduce the probability of thickening of the boundary portion of the heat exchange fins 202, thereby achieving a more uniform heat exchange operation.

[0043] Without limitation, any person skilled in the art who is familiar with the technical field can make equivalent replacements or changes based on the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, and these changes should be covered by the protection scope of the present invention.

Claims

1. A steam condensate recycling and heat exchange heating device, characterized in that: include: a heat exchange bracket (10); a condensation heat exchange structure (20) mounted on the top of the heat exchange bracket (10); a condensation water collection tank (30) connected to the condensation heat exchange structure (20) via screws; and a heat medium diversion and delivery assembly (40) connected to the bottom of the condensation heat exchange structure (20) via screws. The condensing heat exchange structure (20) comprises: a heat exchange container (201) supported and positioned on the top of the heat exchange bracket (10); heat exchange fins (202) arranged inside the heat exchange container (201); positioning protrusions (203) abutting against the outside of the left and right sides of the heat exchange fins (202); an elastic positioning component (204) connected to the positioning protrusions (203) and installed inside the heat exchange container (201); a heat medium sealing conveying component (205) arranged inside the heat exchange container (201) and located outside the elastic positioning component (204); and a U-shaped pipe (206) installed inside a plurality of the heat exchange fins (202) and extending to the outside of the heat exchange container (201). The bottom of the heat medium sealed conveying assembly (205) is connected to the heat medium diversion conveying assembly (40) via screws, and one end of the U-shaped pipe (206) is mounted with a condensed water collection tank (30) via screws.

2. The steam condensate recycling and heat exchange heating device according to claim 1, characterized in that: A triangular bracket (101) is mounted on one side of the top of the heat exchange bracket (10) by screws, an oblique bracket (102) is welded to the side of the triangular bracket (101), and the tops of the triangular bracket (101) and the oblique bracket (102) are both provided with an arc-shaped support surface (103), and the top of the arc-shaped support surface (103) supports and positions a condensed water collection tank (30).

3. The steam condensate recycling and heat exchange heating device according to claim 1, characterized in that: The heat exchange container (201) is composed of a bottom cover (2011) on the left, a tank body (2012) in the middle, and a top cover (2013) on the left. The bottom cover (2011) and the tank body (2012) in the middle are connected by screws, and the tank body (2012) in the middle and the top cover (2013) on the left are connected by screws. A circulation pipeline (2014) is provided inside the top cover (2013), U-shaped pipes (206) flow inside two of the circulation pipelines (2014), a condensate collection tank (30) is installed on the outside of one of the circulation pipelines (2014) via bolts, and an elastic positioning component (204) is provided inside the tank body (2012).

4. The steam condensate recycling and heat exchange heating device according to claim 1, characterized in that: An assembly hole (2021) is provided at an eccentric position inside the heat exchange fin (202), a U-shaped pipe (206) is provided running through the interior of the assembly hole (221), and a gap is left between two adjacent heat exchange fins (202).

5. The steam condensate recycling and heat exchange heating device according to claim 1, characterized in that: The elastic positioning assembly (204) comprises: an annular support body (2041) installed inside the tank body (2012); a flow portion (2042) provided on the inner wall of the annular support body (2041); a horizontal groove (2043) provided inside the annular support body (2041) and located on the side of the flow portion (2042); a horizontal slider (2044) slidably connected to the inside of the horizontal groove (2043); a spring (2045) connected to both sides of the bottom of the horizontal slider (2044); a lifting slider (2046) connected to the spring (2045) and movably provided inside the horizontal slider (2044); and a rubber resistance block (2047) installed on the top of the lifting slider (2046). Wherein, a positioning protrusion (203) is installed at the bottom of the lifting slider (2046).

6. The steam condensate recycling and heat exchange heating device according to claim 5, characterized in that: The horizontal slider (2044) is provided with a plurality of them, and a heat exchange fin (202) located between two positioning protrusions (203) is provided between two adjacent horizontal sliders (2044). Vertical grooves (20461) are provided on the front and rear sides of the interior of the lifting slider (2046). The vertical grooves (20461) are slidably connected to the protrusions (20462) on the inner wall of the horizontal slider (2044). The springs (2045) are provided on the left and right sides of the protruding portion (20462), and the inner side of the annular bracket body (2041) is equipped with a heat medium sealing conveying assembly (205).

7. The steam condensate recycling and heat exchange heating device according to claim 6, characterized in that: The heat medium sealed conveying assembly (205) comprises: a heat insulating sheet (2051) arranged inside the tank body (2012) and having the annular bracket body (2041) assembled and positioned inside; an arc-shaped hillock (2052) arranged on the upper and lower sides of the heat insulating sheet (2051); a heat medium conveying channel (2053) abutting against the side of the arc-shaped hillock (2052) and installed inside the heat insulating sheet (2051); a vertical heat medium pipe (2054) arranged outside the heat medium conveying channel (2053) and communicating with the upper and lower sides of the tank body (2012); and a conical surface (2055) arranged at the top of the heat medium conveying channel (2053).

8. The steam condensate recycling and heat exchange heating device according to claim 7, characterized in that: A heat medium diversion and delivery assembly (40) is mounted on the bottom of the vertical heat medium pipe (2054) at the bottom by screws, and the cross-sectional area of ​​the tapered surface (2055) close to the heat exchange fins (202) is smaller than the cross-sectional area of ​​the side away from the heat exchange fins (202).

9. The steam condensate recycling and heat exchange heating device according to claim 8, characterized in that: The heat medium flow diversion and delivery assembly (40) comprises: a liquid pump (401) connected to the vertical heat medium pipe (2054) via screws; a central conduit (402) connected to the liquid pump (401) via screws; a diversion conduit (403) connected to the central conduit (402); and a diverter (404) connected to the diversion conduit (403) via screws. The liquid inlet of the diverter (404) is connected to the coal mining heat medium channel.

Images