High-temperature steam condensation heat recovery device
By using a high-temperature steam condensation heat recovery device composed of a zigzag baffle and a multi-layer filter screen in feed production, the problem of ineffective utilization of high-temperature steam has been solved, achieving efficient heat recovery and pollutant reduction, thereby reducing production costs and environmental pollution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-16
- Publication Date
- 2026-04-10
AI Technical Summary
In existing technologies, high-temperature steam is not effectively utilized in feed production, resulting in energy waste and environmental pollution, especially since the dust and odor carried by the high-temperature steam are not effectively treated.
A high-temperature steam condensation heat recovery device is designed, which adopts a filter assembly consisting of a zigzag-shaped guide plate and a multi-layer filter screen. Combined with the condensation pipe, the steam flow path is changed by the guide plate to increase the heat exchange efficiency, and impurities are filtered by the multi-layer filter screen to achieve efficient recovery of steam condensation heat and reduction of pollutants.
It improves the efficiency of steam condensation heat recovery, reduces energy consumption and pollutant emissions, lowers production costs, and enhances the stability and environmental performance of the equipment.
Smart Images
Figure CN224108666U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to energy recovery technical field, more exactly relates to a high temperature steam condensing heat recovery device. BACKGROUND
[0002] In the feed production process, often need to use a large amount of steam to adjust quality, puffing, drying and other process links. For example, raw materials in the conditioning stage, the high-temperature steam can make the material fully absorb moisture, soften, facilitate subsequent processing, and the puffing process relies on high-temperature and high-pressure steam to release energy instantaneously, so as to make the material expand and form. However, in the prior art, the high-temperature steam after completing the process task is usually directly discharged into the atmosphere, which brings many problems. On the one hand, the large amount of heat carried by the high-temperature steam is not effectively utilized, causing serious energy waste and increasing the cost of feed production; on the other hand, the directly discharged steam may contain dust, odor and other impurities in the feed processing process, which pollutes the surrounding environment and does not meet the environmental protection requirements. In addition, with the continuous rise of energy prices and the increasingly stringent environmental protection regulations, feed production enterprises urgently need a device that can efficiently recover the condensing heat of high-temperature steam and reduce pollutant emissions to achieve the goal of energy saving and emission reduction, cost reduction and efficiency improvement. SUMMARY
[0003] The utility model aims at providing a high temperature steam condensing heat recovery device, which can effectively treat the impurities in the steam and realize efficient recovery of the steam condensing heat.
[0004] In order to achieve the above-mentioned purpose, the technical scheme of the utility model is as follows:
[0005] A high-temperature steam condensing heat recovery device, comprising a shell, a steam inlet pipe connected to the top of the shell, a flow guide assembly and a filter assembly arranged in the shell from top to bottom, the flow guide assembly comprising a plurality of flow guide plates arranged in longitudinal array, the flow guide plates being fixedly connected to the inner side wall of the shell, the flow guide plates being in the shape of a broken line, a flow guide channel being formed between adjacent two flow guide plates, the shell further comprising a condensing pipeline, the condensing pipeline passing through the flow guide plates in turn, the input end and the output end of the condensing pipeline extending to the outside of the shell, a condensate water discharge pipe being arranged at the bottom of the shell, an electromagnetic valve being installed on the condensate water discharge pipe, and an air outlet pipe being installed on the side wall of the bottom of the shell.
[0006] Further, a hydrophobic coating is arranged on the surface of the flow guide plate.
[0007] Further, the hydrophobic coating is a Teflon coating.
[0008] Furthermore, the filtration assembly includes, from top to bottom, a tetrafluoroethylene coarse filter, an expanded polytetrafluoroethylene activated carbon composite filter, and a polyvinylidene fluoride fine filter.
[0009] Furthermore, the sidewall of the condensation pipe is provided with multiple hemispherical protrusions.
[0010] Furthermore, the output end of the condensation pipe is located above the input end.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] This invention features multiple longitudinally arrayed, zigzag-shaped guide plates. When high-temperature steam enters the device from the steam inlet, the flow path of the steam is forcibly altered by the guide channels formed between adjacent guide plates, changing from a relatively straight flow to a zigzag flow. This increases the steam's travel distance within the casing, effectively slowing down the steam's flow rate and ensuring full contact with the condensation pipes, thereby improving heat exchange efficiency and achieving efficient recovery of steam condensation heat. Furthermore, the included filter components effectively reduce pollutant emissions. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of this utility model.
[0014] 1. Shell; 2. Steam inlet pipe; 3. Baffle plate; 4. Flow channel; 5. Condensate pipe; 6. Condensate drain pipe; 7. Solenoid valve; 8. Gas outlet pipe; 9. PTFE coarse filter screen; 10. Expanded PTFE activated carbon composite filter screen; 11. PTFE fine filter screen. Detailed Implementation
[0015] like Figure 1 As shown, a high-temperature steam condensation heat recovery device includes a housing 1. A steam inlet pipe 2 is connected to the top of the housing 1. A flow guiding assembly and a filter assembly are arranged sequentially from top to bottom on the housing 1. The flow guiding assembly includes a plurality of longitudinally arrayed flow guiding plates 3. The flow guiding plates 3 are fixedly connected to the inner side wall of the housing 1. The flow guiding plates 3 are zigzag-shaped, and a flow guiding channel 4 is formed between two adjacent flow guiding plates 3. The housing 1 is also provided with a condensation pipe 5. The condensation pipe 5 passes back and forth through the flow guiding plates 3 in sequence. The input end and output end of the condensation pipe 5 extend to the outside of the housing 1. A condensate drain pipe 6 is provided at the bottom of the housing 1. A solenoid valve 7 is installed on the condensate drain pipe 6. An exhaust pipe 8 is installed on the bottom side wall of the housing 1.
[0016] The surface of each guide plate 3 is provided with a hydrophobic coating.
[0017] The hydrophobic coating is a Teflon coating.
[0018] The filter assembly comprises, from top to bottom, a polytetrafluoroethylene coarse filter screen 9, an expanded polytetrafluoroethylene activated carbon composite filter screen 10, and a polyvinylidene fluoride fine filter screen 11.
[0019] The side wall of the condensing pipe 5 is provided with a plurality of semispherical protrusions; when the steam flows in the shell 1 and contacts the condensing pipe 5, the semispherical protrusions increase the contact area between the steam and the side wall of the condensing pipe 5, so that the steam molecules have more opportunities to transfer heat to the cooling medium in the pipe, accelerating the condensation of the steam. At the same time, the semispherical protrusions disrupt the relatively smooth flow state of the steam, forming local turbulence, which promotes the impurities in the steam to mix better with the condensing water under the action of turbulence, reducing the possibility of impurities directly adhering to the wall of the condensing pipe 5.
[0020] The output end of the condensing pipe 5 is located above the input end.
[0021] Working principle:
[0022] The high-temperature steam generated in the feed production process enters the inside of the device from the steam inlet pipe 2 at the top of the shell 1. After entering, the steam first encounters the flow guide assembly and is forced to change direction under the guidance of the flow guide channels 4 formed by the zigzag flow guide plates 3, flowing in a zigzag manner and increasing the steam's travel distance in the shell 1, so that it can fully contact the condensing pipe 5 arranged therein. The condensing pipe 5 is filled with a cooling medium (such as cold water, etc.), and the heat of the high-temperature steam is transferred to the cooling medium through the pipe wall of the condensing pipe 5. The steam gradually condenses into liquid water when it encounters cold, and flows to the bottom of the shell along the flow guide plates 3. In the process of the steam flowing through the flow guide assembly, part of the larger particles of impurities directly collide with the surface of the flow guide plates 3 due to inertia, and begin to slide down the flow guide plates 3 under the action of gravity. The surface of the flow guide plates 3 is provided with a hydrophobic coating (such as a Teflon coating), which not only prevents excessive condensation of steam on the flow guide plates 3 to form water accumulation, but also makes it difficult for impurities adhering to the surface, so that impurities are more easily washed away with the subsequent condensate water. Then, the steam carrying a small amount of remaining impurities and the condensate water continue to flow downward and pass through the filter assembly in turn. The polytetrafluoroethylene coarse filter screen 9 first intercepts larger particles of feed dust, the expanded polytetrafluoroethylene activated carbon composite filter screen 10 further adsorbs odors and filters fine impurities, and the polyvinylidene fluoride fine filter screen 11 performs the final fine filtration to ensure that the discharged condensate water and gas are relatively clean. The condensate water is finally discharged through the condensate water discharge pipe 6 at the bottom, and the purified gas is discharged through the gas outlet pipe 8 at the bottom side wall.
[0023] The utility model discloses a flow guide component and condensing pipeline 5 cooperation, maximumly improved steam and cooling medium's heat exchange efficiency, realize high -temperature steam condensing heat's high -efficient recovery, effectively reduce the energy consumption of feed production, save production cost, the flow guide plate 3 surface hydrophobic coating effectively prevent steam condenses into water drop and inclusions attachment on its surface, maintain good heat exchange performance, further promote the overall performance and stability of device, reduce maintenance cost, reduce equipment operation and maintenance difficulty, adopt the filter assembly that a plurality of layers different material filter screen are formed, from coarse filter to fine filter, all -round intercept and adsorb to feed dust, peculiar smell and other impurities, reduce pollutant emission.
[0024] The above shows and describes the basic principle, main features and advantages of the utility model. The skilled in the art should understand that the utility model is not limited by the above examples, and the above examples and descriptions in the specification are only preferred examples of the utility model and are not intended to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model can have various changes and improvements, and these changes and improvements fall within the scope of the claimed utility model. The scope of protection of the utility model is defined by the appended claims and their equivalents.
Claims
1. A high-temperature steam condensation heat recovery device, characterized in that: The device includes a housing (1), the top of which is connected to a steam inlet pipe (2). The housing (1) is provided with a flow guide assembly and a filter assembly from top to bottom. The flow guide assembly includes a plurality of longitudinally arrayed flow guide plates (3). The flow guide plates (3) are fixedly connected to the inner side wall of the housing (1). The flow guide plates (3) are zigzag-shaped, and a flow guide channel (4) is formed between two adjacent flow guide plates (3). The housing (1) is also provided with a condensate pipe (5). The condensate pipe (5) passes back and forth through the flow guide plates (3). The input and output ends of the condensate pipe (5) extend to the outside of the housing (1). The bottom of the housing (1) is provided with a condensate drain pipe (6). A solenoid valve (7) is installed on the condensate drain pipe (6). An exhaust pipe (8) is installed on the bottom side wall of the housing (1).
2. The high-temperature steam condensation heat recovery device as described in claim 1, characterized in that: The surface of the guide plate (3) is provided with a hydrophobic coating.
3. The high-temperature steam condensation heat recovery device as described in claim 2, characterized in that: The hydrophobic coating is a Teflon coating.
4. The high-temperature steam condensation heat recovery device as described in claim 1, characterized in that: The filter assembly includes, from top to bottom, a tetrafluoroethylene coarse filter (9), an expanded polytetrafluoroethylene activated carbon composite filter (10), and a polyvinylidene fluoride fine filter (11).
5. The high-temperature steam condensation heat recovery device as described in claim 1, characterized in that: The condensation pipe (5) has multiple hemispherical protrusions on its side wall.
6. The high-temperature steam condensation heat recovery device as described in claim 1, characterized in that: The output end of the condensation pipe (5) is located above the input end.