Clean steam heat exchange system

Abstract

The invention belongs to the technical field of steam heat exchange, and particularly relates to a clean steam heat exchange system which comprises a steam generator and a phase change heat exchanger, the phase change heat exchanger comprises a plurality of heat exchange assemblies, the tops of the heat exchange assemblies communicate with the bottom of a second steam collecting box, and water distribution pipes are arranged on the lower sides of the heat exchange assemblies. The top of the water distribution pipe communicates with the tail ends of the multiple heat exchange assemblies, and the middle of the top of the second steam collecting box communicates with a steam leading-out pipe. Phase change heat transfer is carried out in the heat exchange tube assembly to carry out heat exchange of the primary side and the secondary side, a large number of longitudinal fins are added, the heat transfer effect is greatly improved, the small-channel heat transfer mode is adopted, and the heat exchanger is small in size, light in weight, highest in resource utilization rate and lowest in energy consumption.

Description

Technical Field

[0001] This invention relates to the field of steam heat exchange technology, specifically a clean steam heat exchange system. Background Technology

[0002] Industrial steam heat exchange to produce clean steam is widely used. Its application scenarios generally use pipeline industrial steam as the primary heat source, and the primary steam is used to exchange heat in shell-and-tube or tube-type heat exchangers to produce secondary clean steam. There is heat loss during the transmission of industrial steam, and the high-temperature condensate with a large amount of calorific value after heat exchange cannot be reused. The heat loss is large, resulting in energy waste. In addition, the basic cost of shell-and-tube or tube-type heat exchanger equipment is high, and the applicability of distributed application conditions is poor.

[0003] We propose a clean steam heat exchange system that minimizes or eliminates environmental pollution throughout the entire product lifecycle, from design and manufacturing to use and disposal. This system meets environmental protection requirements, is harmless or minimally harmful to the ecological environment, saves resources and energy, maximizes resource utilization, and minimizes energy consumption. Summary of the Invention

[0004] The purpose of this invention is to provide a clean steam heat exchange system that solves the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a clean steam heat exchange system, comprising a steam generator and a phase change heat exchanger, wherein the phase change heat exchanger comprises heat exchange components, and the number of heat exchange components is plurality of, wherein the top of the plurality of heat exchange components is connected to the bottom of a second steam collection box, wherein a water distribution pipe is provided on the lower side of the heat exchange components, wherein the top of the water distribution pipe is respectively connected to the tail end of the plurality of heat exchange components, and a steam outlet pipe is connected to the middle of the top of the second steam collection box;

[0006] A first steam collection box is provided on one side of the second steam collection box. The output end of the steam generator is connected to a control valve. The outer end of the control valve is connected to the first steam collection box through a conduit. The first steam collection box is connected to multiple heat exchange components through multiple pipes.

[0007] The heat exchange assembly includes a sleeve and an inner tube. The sleeve is fixedly fitted onto the outer wall of the inner tube. The outer wall of the inner tube is fixed with a plurality of evenly distributed longitudinally extending fins. The two ends of the inner tube are respectively connected to a second steam collection box and a water distribution pipe. The first steam collection box, the sleeve, and the inner tube cavity are connected.

[0008] By adopting the above technical solution, steam is first generated by a steam generator and enters the first steam collection box. Then, the steam is distributed stepwise between each sleeve and inner tube using the first steam collection box. The steam moves from top to bottom, and at the same time, water is introduced into the inner tube through the water distribution pipe. Thus, the steam and the water in the inner tube are exchanged, evaporating the internal feedwater into water vapor. The water vapor then enters the second steam collection box and is discharged through the steam outlet pipe for use. In this way, the secondary steam pipeline can be purified, thus providing users with clean steam. In addition, a large number of longitudinal fins are added, which greatly improves the heat transfer effect. The small channel heat transfer method results in small equipment size, light weight, highest resource utilization, and lowest energy consumption.

[0009] In a preferred embodiment of the present invention, a condensate collection tank is provided on one side of the tail end of the heat exchange assembly. The outer wall of the condensate collection tank is connected to multiple sleeve clamp cavities through multiple connecting pipes. One end of the condensate collection tank is connected to a steam generator through a conduit.

[0010] By adopting the above technical solution, the condensate formed by steam can be recovered and returned to the steam generator for reheating and vaporization.

[0011] In a preferred embodiment of the present invention, a steam-water separator is connected between the second steam collection box and the steam outlet pipe.

[0012] By adopting the above technical solution, when clean steam is exported through the steam outlet pipe, the steam-water separator can remove steam water, further improving the steam utilization effect.

[0013] In a preferred embodiment of the present invention, a water supply pipe is fixedly connected to one side of the outer wall of the water distribution pipe, and an atomizer is installed inside the water supply pipe.

[0014] By adopting the above technical solution, water is supplied through a water supply pipe, and the water flow is atomized through an atomizer during the water supply process, thereby improving the heat exchange effect.

[0015] In a preferred embodiment of the present invention, a return pipe is fixedly connected to one side of the bottom of the water distribution pipe.

[0016] By adopting the above technical solution, a valve is installed on the return pipe to facilitate the removal of residual water stains.

[0017] In a preferred embodiment of the present invention, a safety valve interface is fixedly connected to the other side of the top of the second steam collection tank.

[0018] By adopting the above technical solution, the safety valve interface is connected to the safety valve during use to achieve automatic pressure relief, further ensuring safety.

[0019] In a preferred embodiment of the present invention, a pressure gauge interface is fixedly connected to one side of the top of the second steam collection tank.

[0020] By adopting the above technical solution, a pressure gauge is connected during use to monitor the pressure inside the second steam collection tank, ensuring safety.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] The system of this invention does not require the addition of heat transfer medium during operation. Heat exchange between the primary and secondary sides is achieved through phase change heat transfer in the heat exchange tube assembly. Due to the addition of a large number of longitudinal fins, the heat transfer effect is greatly improved. The small-channel heat transfer method results in small equipment size, light weight, highest resource utilization, and lowest energy consumption. Attached Figure Description

[0023] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the overall structure of a clean steam heat exchange system according to the present invention;

[0025] Figure 2 This is a schematic diagram of the phase change heat exchanger structure of a clean steam heat exchange system according to the present invention;

[0026] Figure 3 This is a front view schematic diagram of the phase change heat exchanger structure of a clean steam heat exchange system according to the present invention;

[0027] Figure 4 This is a schematic diagram of the end face structure of the sleeve and inner tube of a clean steam heat exchange system according to the present invention.

[0028] In the picture:

[0029] 100. Steam generator; 110. Control valve; 200. Phase change heat exchanger; 210. Heat exchange assembly; 211. Inner tube; 212. Shell; 213. Fin; 220. Second steam collection box; 221. Steam outlet pipe; 222. Pressure gauge interface; 223. Safety valve interface; 224. Steam-water separator; 230. Water distribution pipe; 231. Water supply pipe; 232. Return pipe; 240. First steam collection box; 250. Condensate collection box. Detailed Implementation

[0030] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0031] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., 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 invention 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 invention.

[0032] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances. The model numbers of the electrical appliances provided in this invention are for reference only, and different models of electrical appliances with the same function can be replaced according to actual usage.

[0033] Please see Figure 1-4 The present invention provides a technical solution: a clean steam heat exchange system, including a steam generator 100 and a phase change heat exchanger 200;

[0034] The phase change heat exchanger 200 includes heat exchange components 210, and there are multiple heat exchange components 210. The top of the multiple heat exchange components 210 is connected to the bottom of the second steam collection box 220. A water distribution pipe 230 is provided on the lower side of the heat exchange components 210. The top of the water distribution pipe 230 is connected to the tail end of the multiple heat exchange components 210 respectively. A steam outlet pipe 221 is connected to the middle of the top of the second steam collection box 220.

[0035] A first steam collection box 240 is provided on one side of the second steam collection box 220. The output end of the steam generator 100 is connected to a control valve 110. The outer end of the control valve 110 is connected to the first steam collection box 240 through a conduit. The first steam collection box 240 is connected to multiple heat exchange components 210 through multiple pipes.

[0036] The heat exchange assembly 210 includes a sleeve 212 and an inner tube 211. The sleeve 212 is fixedly fitted onto the outer wall of the inner tube 211. The outer wall of the inner tube 211 is fixed with a plurality of evenly distributed longitudinally extending fins 213. The two ends of the inner tube 211 are respectively connected to the second steam collection box 220 and the water distribution pipe 230. The first steam collection box 240 is connected to the cavity of the sleeve 212 and the inner tube 211.

[0037] In actual use, steam is first generated by the steam generator 100 and enters the first steam collection box 240. Then, the steam is distributed stepwise between each sleeve 212 and inner tube 211 using the first steam collection box 240. The steam moves from top to bottom, and at the same time, the water distribution pipe 230 introduces water into the inner tube 211. Thus, the steam and the water in the inner tube 211 are exchanged to evaporate the internal water into water vapor. The water vapor then enters the second steam collection box 220 and is discharged through the steam outlet pipe 221 for use. Thus, the secondary steam pipeline can be purified, providing users with clean steam. In addition, a large number of longitudinal fins 213 are added, which greatly improves the heat transfer effect. The small channel heat transfer method results in small equipment size, light weight, highest resource utilization, and lowest energy consumption.

[0038] Furthermore, a condensate collection tank 250 is provided on one side of the tail end of the heat exchange component 210. The outer wall of the condensate collection tank 250 is connected to the cavities of multiple sleeves 212 through multiple connecting pipes. One end of the condensate collection tank 250 is connected to the steam generator 100 through a conduit, so that the condensate formed by the steam can be recovered and returned to the steam generator 100 for reheating and vaporization.

[0039] Furthermore, a pressure gauge interface 222 is fixedly connected to one side of the top of the second steam collection box 220, so that a pressure gauge can be connected during use to monitor the pressure inside the second steam collection box 220 and ensure safety.

[0040] It is worth mentioning that a safety valve interface 223 is fixedly connected to the other side of the top of the second steam collection box 220. When in use, the safety valve interface 223 is connected to the safety valve to realize automatic pressure relief and further ensure safety.

[0041] like Figure 1 and 2 As shown in Figure 3, a steam-water separator 224 is connected between the second steam collection box 220 and the steam outlet pipe 221. Thus, when clean steam is exported using the steam outlet pipe 221, the steam-water separator 224 can remove steam water, further improving the steam utilization effect.

[0042] like Figure 1 and 2 As shown, a water supply pipe 231 is fixedly connected to one side of the outer wall of the water distribution pipe 230. An atomizer is installed inside the water supply pipe 231. Water is supplied through the water supply pipe 231, and the water flow is atomized through the atomizer during the water supply process, thereby improving the heat exchange effect.

[0043] like Figure 1 and 2As shown; a return pipe 232 is fixedly connected to one side of the bottom of the water distribution pipe 230, and a valve is provided on the return pipe 232 to facilitate the discharge of residual water stains.

[0044] The implementation principle of the clean steam heat exchange system of this application is as follows: In actual use, steam is first generated by the steam generator 100 and enters the first steam collection box 240. Then, the first steam collection box 240 distributes the steam in stages between each sleeve 212 and the inner tube 211. The steam moves from top to bottom. At the same time, water is supplied through the water supply pipe 231, and the water is atomized by an atomizer during the water supply process to improve the heat exchange effect. The water distribution pipe 230 introduces water into the inner tube 211, thereby using the steam and the water in the inner tube 211 to exchange heat, thus improving the heat exchange effect. Water evaporates into steam, which then enters the second steam collection box 220 and is discharged through the steam outlet pipe 221 for use. The condensate collection box 250 can recover the condensate formed by the steam and return it to the steam generator 100 for reheating and vaporization. This allows the secondary steam pipeline to be cleaned, providing users with clean steam. In addition, a large number of longitudinal fins 213 are added, which greatly improves the heat transfer effect. The small channel heat transfer method results in small equipment size, light weight, the highest resource utilization rate, and the lowest energy consumption.

[0045] Furthermore, the components included in the clean steam heat exchange system of this invention are all general standard parts or parts known to those skilled in the art. Their structure and principle can be known to those skilled in the art through technical manuals or conventional experimental methods. In the idle part of this device, all the above-mentioned electrical components, which refer to power elements, electrical components, and the matching monitoring computer and power supply, are connected by wires. The specific connection method should refer to the working principle below, and the electrical connection between each electrical component is completed in the order of operation. The detailed connection method is a well-known technology in the art. The following mainly introduces the working principle and process, and will not explain the electrical control.

[0046] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the scope of the invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0047] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A clean steam heat exchange system comprising a steam generator (100) and a phase change heat exchanger (200), characterised in that: The phase change heat exchanger (200) comprises heat exchange assemblies (210), the top of the heat exchange assemblies (210) is communicated with the bottom of a second steam collecting tank (220), the lower side of the heat exchange assemblies (210) is provided with water distribution pipes (230), the top of the water distribution pipes (230) is respectively communicated with the tail end of the heat exchange assemblies (210), and the top of the second steam collecting tank (220) is communicated with a steam leading-out pipe (221) at the middle thereof; The second steam collecting tank (220) is provided with a first steam collecting tank (240) on one side, the output end of the steam generator (100) is communicated with a control valve (110), the outer end of the control valve (110) is communicated with the first steam collecting tank (240) through a pipe, and the first steam collecting tank (240) is respectively communicated with the heat exchange assemblies (210) through a plurality of pipes; The heat exchange assembly (210) comprises a sleeve pipe (212) and an inner pipe (211), the sleeve pipe (212) is fixedly sleeved on the outer wall of the inner pipe (211), the outer wall of the inner pipe (211) is fixedly provided with a plurality of longitudinally extending fins (213) which are uniformly distributed, the two ends of the inner pipe (211) are respectively communicated with the second steam collecting tank (220) and the water distribution pipe (230), and the first steam collecting tank (240) is communicated with the sleeve pipe (212) and the inner pipe (211) in a clamped cavity.

2. A clean steam heat exchange system as claimed in claim 1, wherein: The tail end of the heat exchange assembly (210) is provided with a condensate water collecting tank (250), the outer wall of the condensate water collecting tank (250) is respectively communicated with the sleeve pipes (212) in a clamped cavity through a plurality of connecting pipes, and one end of the condensate water collecting tank (250) is communicated with the steam generator (100) through a pipe.

3. The clean steam heat exchange system of claim 1, wherein: A steam-water separator (224) is connected between the second steam collecting tank (220) and the steam leading-out pipe (221).

4. The clean steam heat exchange system of claim 1, wherein: The outer wall of the water distribution pipe (230) is fixedly communicated with a water supply pipe (231), and the water supply pipe (231) is provided with an atomizer.

5. The clean steam heat exchange system of claim 1, wherein: The bottom of the water distribution pipe (230) is fixedly communicated with a backflow pipe (232).

6. The clean steam heat exchange system of claim 1, wherein: The top of the second steam collecting tank (220) is fixedly communicated with a safety valve interface (223) on the other side.

7. The clean steam heat exchange system of claim 1, wherein: The top of the second steam collecting tank (220) is fixedly communicated with a pressure gauge interface (222) on one side. The top of the second steam collecting tank (220) is fixedly communicated with a pressure gauge interface (222) on one side.

Images