Multi-section feed liquid preheater for evaporation system
By integrating a multi-stage liquid preheater into a heat recovery system, the problems of complexity and high cost of existing systems are solved, achieving the effects of simplified structure and reduced operating costs.
Patent Information
- Application Number
- CN202520849840.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-30
AI Technical Summary
In existing liquid heating systems, heat recovery equipment is scattered, resulting in complex systems, large footprints, high investment costs, and difficult operation and maintenance.
A multi-stage liquid preheater is adopted to integrate the dispersed heat recovery system into a single unit, eliminating intermediate pipes and valves, and optimizing the heat recovery process through the liquid mixing zone and baffles.
It simplifies the system structure, reduces operating costs, and improves heat recovery efficiency and equipment maintainability.
Smart Images
Figure CN223846244U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of feed liquid preheater, especially to multi-section feed liquid preheater for evaporation system. BACKGROUND
[0002] With the continuous improvement of environmental protection requirements, zero emission evaporation system is paid more and more attention in the end use of wastewater treatment.
[0003] In the design and implementation of evaporation system, in order to reduce energy consumption as far as possible, recover the heat energy in the evaporation system, and reduce the generation of heat pollution, the waste heat in the evaporation system needs to be recovered. In the evaporation system, the recovered heat energy usually includes: the heat energy of the condensate water after the condensation of the external supply steam, the heat energy of the condensate water after the condensation of the secondary steam, the heat energy of the end secondary steam, the heat energy of the non-condensing gas (waste gas) in the system, the heat energy of the discharge liquid cooling, etc.
[0004] The current conventional design is to use different heat exchange equipment to heat the feed liquid for various different heat energy recovery, and each small system is used for recovery, such as using a heat exchange equipment and corresponding pipeline valves to utilize the heat energy of the condensate water after the condensation of the external supply steam, using another heat exchange equipment and corresponding pipeline valves to utilize the heat energy of the condensate water after the condensation of the secondary steam, etc.
[0005] The above existing feed liquid heating system is suitable for recovering heat energy, but the system needs more intermediate pipelines and valves, the whole is relatively complex, the land area is large, the investment cost is high, the points for inspection and maintenance are many and difficult, which is not conducive to equipment investment, civil engineering investment, production operation, inspection and maintenance, etc.
[0006] Therefore, how to integrate the multiple heat energy recovery small systems of feed liquid preheating to realize the simplification of feed liquid preheating system and reduce the operation cost has become a technical problem to be solved by the technical personnel in the field. INVENTION CONTENTS
[0007] In view of the above defects of the prior art, the utility model provides a multi-section feed liquid preheater for evaporation system, which realizes the purpose of integrating the dispersed multiple heat energy recovery small systems into a single multi-section equipment for heat energy recovery, and saves all intermediate pipelines and valves.
[0008] To achieve the above technical purpose, the utility model provides a multi-section feed liquid preheater for evaporation system, which comprises a device main body, one end of the device main body is provided with a feed liquid inlet, and the other end is provided with a feed liquid outlet;
[0009] The main body of the equipment is composed of multiple liquid preheater sections. Each liquid preheater has a heat medium inlet and outlet on both sides. The flow channels of adjacent liquid preheaters are different, and adjacent liquid preheaters are connected by a liquid mixing zone.
[0010] Each of the aforementioned liquid preheaters and each of the aforementioned liquid mixing zones is provided with a cleaning exhaust port and a cleaning drain port.
[0011] Preferably, each of the feed liquid preheaters is provided with a baffle plate.
[0012] Preferably, a thermometer is installed at the inlet and outlet of each of the aforementioned liquid preheaters.
[0013] Preferably, pressure gauges are installed at the locations of the liquid inlet and the liquid outlet.
[0014] Preferably, a support is provided on the main body of the device.
[0015] The beneficial effects of this utility model are:
[0016] Due to the above-mentioned structural design, this utility model integrates multiple dispersed heat recovery systems into a single multi-stage liquid preheater for heat recovery. It performs segmented recovery according to the different heat sources that need to be recovered in the system, and sets different numbers of stages according to system requirements. Each stage enters its respective heat recovery stage, eliminating all intermediate pipes and valves, thereby simplifying the liquid preheating system and further reducing operating costs. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model.
[0018] In the diagram: 1. Main body of equipment; 2. Liquid inlet; 3. Liquid outlet; 4. Liquid preheater; 5. Heat medium inlet and outlet; 6. Liquid mixing zone; 7. Cleaning exhaust port; 8. Cleaning drain port; 9. Baffle plate; 10. Pressure gauge; 11. Vertical support; 12. Horizontal support. Detailed Implementation
[0019] The following will further explain the concept, specific structure and technical effects of this utility model in conjunction with the accompanying drawings, so as to fully understand the purpose, features and effects of this utility model.
[0020] Example:
[0021] like Figure 1 As shown, the evaporation system uses a multi-stage liquid preheater, which includes a main body 1, a liquid inlet 2 at one end of the main body 1, and a liquid outlet 3 at the other end.
[0022] The device body 1 is composed of multiple feed liquid preheaters 4 segments, and a hot medium inlet and outlet 5 is arranged on each side of each feed liquid preheater 4; in order to ensure the uniformity of the internal temperature of the feed liquid, the flow channels of adjacent feed liquid preheaters 4 are different, and the adjacent feed liquid preheaters 4 are connected through a feed liquid mixing area 6.
[0023] A cleaning exhaust port 7 and a cleaning exhaust port 8 are arranged on each feed liquid preheater 4 and each feed liquid mixing area 6, respectively.
[0024] The main innovation of the utility model lies in that: multiple feed liquid preheaters 4 segments constitute a device body 1, different segment numbers can be set according to system requirements, and each hot energy recovery segment is entered, so that the pipelines and valves of all intermediate links are omitted.
[0025] Specifically, a baffle 9 is arranged in each feed liquid preheater 4.
[0026] Further, a thermometer is arranged at the inlet and outlet of each feed liquid preheater 4, which is used for monitoring the hot energy recovery of each segment of the feed liquid preheater 4, for comparison with design and comparison of different production times, for timely finding the feed liquid preheater 4 with abnormal recovered hot energy, and for facilitating analysis and problem solving.
[0027] A pressure gauge 10 is arranged at the position of the feed liquid inlet 2 and the feed liquid outlet 3, which is used for monitoring the pressure change and pressure difference of the whole device body 1, for detecting and judging the working condition of the feed liquid, and for timely finding the blockage condition of the feed liquid flow channel.
[0028] In some embodiments, a support is arranged on the device body 1, and a vertical support 11 or a horizontal support 12 can be selected and matched, and the vertical or horizontal arrangement can be flexibly adopted according to the workshop condition or project requirement.
[0029] The above describes the preferred embodiments of the utility model in detail. It should be understood that those skilled in the art can make many modifications and changes according to the concept of the utility model without creative labor. Therefore, any technical scheme obtained by logical analysis, reasoning or limited experiment on the basis of the prior art according to the concept of the utility model shall be within the protection scope defined by the claims.
Claims
1. A multi-stage feed preheater for evaporation systems, comprising a main body, characterized in that: One end of the equipment body is provided with a feed liquid inlet, and the other end is provided with a feed liquid outlet; The equipment body is composed of multiple feed liquid preheater segments, each of which is provided with a hot medium inlet and outlet on both sides, the flow channels of adjacent feed liquid preheaters are different, and adjacent feed liquid preheaters are connected through a feed liquid mixing area; Each of the feed liquid preheaters and each of the feed liquid mixing areas is respectively provided with a cleaning exhaust port and a cleaning exhaust port.
2. The multi-stage feed preheater for evaporation system as claimed in claim 1 wherein: Each of the feed liquid preheaters is respectively provided with a baffle.
3. The multi-stage feed preheater for evaporation system as claimed in claim 2 wherein: Each of the feed liquid preheaters is respectively provided with a thermometer at the inlet and outlet.
4. The multi-stage feed preheater for evaporation system according to claim 1 or 3, characterized in that: The positions of the feed liquid inlet and the feed liquid outlet are respectively provided with pressure gauges.
5. The multi-stage feed preheater for evaporation system as claimed in claim 4 wherein: The equipment body is provided with a support.