A heat energy recycling system for feed processing
By designing a heat recovery system during feed processing, heat is recovered using coolers and heat exchangers and recycled in the boiler, solving the problems of heat waste and plant temperature rise, and achieving efficient energy utilization and environmental improvement.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NINGDE ORIENTAL HOPE ANIMAL FEED CO LTD
- Filing Date
- 2025-07-22
- Publication Date
- 2026-06-02
AI Technical Summary
During the processing of livestock feed, heat energy is not effectively recovered and utilized, resulting in energy waste and increased temperature in the factory area, which affects the comfort of workers.
Design a heat recovery system including a cooler, first and second heat exchangers, a water storage tank, and a preheater. The system recovers the heat from the cooling of feed through heat exchange and recycles it in the boiler. The water temperature is further increased by the preheater and second heat exchanger on the chimney. A baffle and float device ensures the stability of the water flow.
It achieves efficient recovery and utilization of heat energy, reduces energy consumption, improves the factory environment, and enhances worker comfort.
Smart Images
Figure CN224316872U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of energy recovery and utilization technology, specifically a heat energy recovery and utilization system for feed processing. Background Technology
[0002] The processing of livestock feed requires a large amount of steam, which is generally generated by heating in a boiler to assist in feed processing. Therefore, the processed feed still contains a lot of heat. In order to cool the feed quickly for subsequent processing, some factories currently use methods such as air cooling to lower the temperature. In fact, this method not only wastes a lot of heat, but the heat dissipated into the environment will also accelerate the temperature rise of the factory, which will greatly reduce the comfort of workers. Therefore, a heat recovery system for feed processing is proposed to achieve full utilization of heat energy and improve the factory environment. Utility Model Content
[0003] To address the above problems, this utility model provides a heat energy recovery and utilization system for feed processing, which solves the problem of heat energy recovery during feed cooling in the feed processing process.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0005] A heat recovery and utilization system for feed processing includes a cooler connected to a cooling fan via a pipe for cooling the feed.
[0006] The pipeline is connected to a first heat exchanger, which is connected to a first water storage tank. The inlet and outlet of the first heat exchanger are connected to the first water storage tank respectively. The inlet of the first heat exchanger is connected to the pump body.
[0007] The first water storage tank is also connected to a second water storage tank, and the outlet of the second water storage tank is connected to the boiler.
[0008] As a further improvement to the above scheme, the boiler has a chimney, and a preheater is installed on the chimney to facilitate the preheating of the water entering the boiler.
[0009] As a further improvement to the above scheme, a second heat exchanger is also installed on the chimney. The inlet and outlet of the second heat exchanger are respectively connected to the second water storage tank to form a circulation loop.
[0010] As a further improvement to the above scheme, the first heat exchanger includes a first pipe and a second pipe, which are connected by a heat exchange pipe, and the heat exchange pipe is also provided with heat exchange fins.
[0011] The first and second pipes are surrounded by an outer shell that completely encloses them.
[0012] As a further improvement to the above scheme, the first water storage tank is equipped with a partition, which divides its interior into two interconnected and symmetrical chambers.
[0013] One chamber is connected to the inlet pipe and the inlet end of the first heat exchanger, and the other chamber is connected to the outlet end of the first heat exchanger and the inlet end of the second water storage tank.
[0014] As a further improvement to the above scheme, the partition is also provided with a connection port connecting the two chambers. A normally closed baffle plate is provided on the connection port. A pull rope is connected to the top of the baffle plate. The pull rope goes around the other chamber and is connected to a float in the other chamber. A counterweight is fixedly provided at the bottom of the float.
[0015] As a further improvement to the above scheme, a buoyancy switch is installed at the end of the inlet pipe of the first water storage tank.
[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0017] 1. By installing a first heat exchanger on the pipes of the cooler that cools the freshly processed feed, the heat on the feed can be exchanged with the cold water entering the first heat exchanger, thereby recovering the heat into the water in the first water tank and raising the temperature of the cold water in the first water tank. This will reduce the internal energy loss when the water in the first water tank is injected into the boiler for heating.
[0018] 2. Installing a second heat exchanger and preheater on the boiler can recover heat from the combustion process and increase the temperature of the water entering the boiler, thereby further reducing energy loss.
[0019] 3. By installing a partition in the first water storage tank, the cold water and the hot water after heat exchange can be temporarily isolated. This can prevent the cold water from lowering the temperature of the hot water and improve the heat exchange effect. Setting the two chambers in the first water storage tank to be interconnected and connecting them with a connection port can reduce the water level difference between the two chambers, ensure that the water level in the two chambers is close to a reasonable level, and ensure the smooth flow of water in the entire system during heat exchange. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0021] Figure 2 This is a schematic diagram of the structure of the first heat exchanger;
[0022] Figure 3 A schematic diagram of the first embodiment of the arrangement of heat exchange fins on a heat exchange pipe;
[0023] Figure 4 A schematic diagram of a second embodiment of the arrangement of heat exchange fins on a heat exchange pipe;
[0024] Figure 5 This is a schematic diagram of the structure of the first embodiment within the first water storage tank;
[0025] Figure 6 This is a schematic diagram of the structure of the second embodiment within the first water storage tank.
[0026] In the diagram: 10. Cooler; 11. First heat exchanger; 111. Outer shell; 112. First pipe; 113. Second pipe; 114. Heat exchange pipe; 115. Heat exchange fins; 12. First water tank; 121. Baffle plate; 122. Connection port; 123. Baffle plate; 124. Pull rope; 125. Float; 126. Counterweight; 127. Buoyancy switch; 13. Second water tank; 14. Boiler; 141. Chimney; 142. Second heat exchanger; 143. Preheater. Detailed Implementation
[0027] To enable those skilled in the art to better understand the technical solution, the present invention will be described in detail below with reference to the embodiments. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of the present invention in any way.
[0028] like Figure 1-6 As shown, the specific solution of this embodiment is: a heat energy recovery and utilization system for feed processing, including a cooler 10 for cooling the feed, the cooler 10 being connected to a cooling fan via a pipe; as shown Figure 1 As shown, the cooling fan draws outward to remove the heat absorbed by the cooler 10.
[0029] A first heat exchanger 11 is connected to the pipe connecting the cooler 10 and the cooling fan, such as... Figure 2 As shown, the first heat exchanger 11 includes a first pipe 112 and a second pipe 113, which are connected by a heat exchange pipe 114. The heat exchange pipe 114 is also equipped with heat exchange fins 115. An outer shell 111 completely encloses the first pipe 112 and the second pipe 113. Hot air drawn from the feed enters the outer shell 111 and comes into contact with the heat exchange pipe 114 and the heat exchange fins 115, thereby transferring heat to them. Water flows from the first pipe 112 into the heat exchange pipe 114 and the heat exchange fins 115, is heated, and then discharged from the heat exchange fins 115. (See also the attached instruction manual.) Figure 3 , 4 As shown, two ways of arranging the heat exchange fins 115 are provided, namely, with Figure 3 The illustration shows heat exchange fins 115 arranged at an angle, with the spacing between each pair of heat exchange fins 115 staggered with the heat exchange fins 115 of the next layer. Figure 4 The structure shown is only related to the attached Figure 3 The structure shown differs in the arrangement angle of the heat exchange fins 115, which are arranged horizontally, while the other structures are the same.
[0030] In this system, the first heat exchanger 11 is connected to the first water storage tank 12. The inlet and outlet of the first heat exchanger 11 are connected to the first water storage tank 12. The inlet of the first heat exchanger 11 is connected to the pump body. The pump pumps the cold water in the first water storage tank 12 into the first heat exchanger 11 to exchange heat with the hot air, and then flows back to the first water storage tank 12. This achieves the effect of heating the cold water in the first water storage tank 12. This can cool the feed while recovering heat, and at the same time reduce the diffusion of heat into the factory area, providing a better working environment for the factory area.
[0031] A second water tank 13 is also connected to the first water tank 12. The outlet of the second water tank 13 is connected to the boiler 14. The water in the second water tank 13 is directly injected into the boiler 14 for heating. The preheating in the first water tank 12 reduces the energy consumption when heating the water.
[0032] like Figure 1 As shown, the boiler 14 has a chimney 141, on which a preheater 143 is installed to facilitate the preheating of water entering the boiler 14. A second heat exchanger 142 is also installed on the chimney 141. The inlet and outlet of the second heat exchanger 142 are respectively connected to the second water storage tank 13 to form a circulation loop. Both the second heat exchanger 142 and the preheater 143 are heated by exchanging heat with the flue gas in the chimney 141 to achieve the purpose of preheating. Both are transported by a pump. Under the action of the pump, the second heat exchanger 142 continuously exchanges heat between the water and the flue gas in the chimney 141, thereby increasing the temperature of the water in the second water storage tank 13. After entering the boiler 14, the water is heated to the same temperature, and less energy is consumed to generate steam.
[0033] like Figure 5 , 6As shown, the first water storage tank 12 is equipped with a partition 121, which divides its interior into two interconnected symmetrical chambers. One chamber is connected to the water inlet pipe and the water inlet end connected to the first heat exchanger 11, and the other chamber is connected to the water outlet end of the first heat exchanger 11 and the water inlet end of the second water storage tank 13. The two chambers separated by the first water storage tank 12 can temporarily separate the cold water entering the first water storage tank 12 from the hot water after heat exchange, so that the temperature of the hot water after heat exchange will not be lowered by the cold water.
[0034] like Figure 6 The diagram shows another embodiment of the internal structure of the first water storage tank 12. Specifically, the partition 121 is provided with a connection port 122 connecting the two chambers. A normally closed baffle plate 123 is provided on the connection port 122. Specifically, the baffle plate 123 can move up and down to open and close the connection port 122. A torsion spring (not shown in the diagram) is provided between the baffle plate 123 and the connection port 122. The torsion spring drives the baffle plate 123 to move downward to keep the baffle plate 123 normally closed. A pull rope 124 is connected to the top of the baffle plate 123. The other end of the pull rope 124 passes around the other chamber. Specifically, in the first water storage tank 12... A pulley is installed at the top, and a rope 124 passes around the pulley and is connected to a float 125 in another chamber. A counterweight 126 is fixedly installed at the bottom of the float 125. Therefore, when the liquid level in the hot water chamber of the first water storage tank 12 is lower than the minimum required liquid level, the rope 124 can be pulled upward by the float 125 and the counterweight 126 to open the connection port 122, thereby allowing cold water to be replenished to the hot water side and maintaining the water volume in the hot water side chamber. When the water level on the hot water side is high, it can overflow into the cold water side chamber through the connection position at the top.
[0035] In this embodiment, a buoyancy switch 127 is provided at the end of the water inlet pipe of the first water storage tank 12 to automatically control the liquid level on the cold water side of the first water storage tank 12.
[0036] It should be noted that, in this document, the terms "including," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Specific examples have been used in this document to illustrate the principles and implementation methods of the present invention. These examples are merely for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be pointed out that, due to the limitations of written expression and the objective existence of infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the present invention to other situations without modification, should all be considered within the scope of protection of the present invention.
Claims
1. A heat energy recovery and utilization system for feed processing, characterized in that, Includes a cooler (10) for cooling and cooling the feed, the cooler (10) being connected to a cooling fan via a pipe; The pipeline is connected to a first heat exchanger (11), which is connected to a first water storage tank (12). The inlet and outlet of the first heat exchanger (11) are connected to the first water storage tank (12) respectively. The inlet of the first heat exchanger (11) is connected to the pump body. A second water tank (13) is also connected to the first water tank (12), and the outlet of the second water tank (13) is connected to the boiler (14).
2. The heat energy recovery and utilization system for feed processing according to claim 1, characterized in that, The boiler (14) has a chimney (141) and a preheater (143) is provided on the chimney (141) to facilitate the preheating of the water entering the boiler (14).
3. A heat energy recovery and utilization system for feed processing according to claim 2, characterized in that, A second heat exchanger (142) is also installed on the chimney (141). The inlet and outlet of the second heat exchanger (142) are connected to the second water storage tank (13) to form a circulation loop.
4. A heat energy recovery and utilization system for feed processing according to claim 1, characterized in that, The first heat exchanger (11) includes a first pipe (112) and a second pipe (113), which are connected by a heat exchange pipe (114), and the heat exchange pipe (114) is also provided with heat exchange fins (115). The first pipe (112) and the second pipe (113) are provided with an outer shell (111) that completely encloses them.
5. A heat energy recovery and utilization system for feed processing according to claim 1, characterized in that, The first water storage tank (12) is equipped with a partition (121) inside, which divides its interior into two interconnected symmetrical chambers; One of the chambers is connected to the water inlet pipe and the water inlet end connected to the first heat exchanger (11), and the other chamber is connected to the water outlet end of the first heat exchanger (11) and the water inlet end of the second water storage tank (13).
6. A heat energy recovery and utilization system for feed processing according to claim 5, characterized in that, The partition (121) is also provided with a connection port (122) connecting the two chambers. A normally closed baffle plate (123) is provided on the connection port (122). A pull rope (124) is connected to the top of the baffle plate (123). The pull rope (124) passes around another chamber and is connected to a float (125) in the other chamber. A counterweight (126) is fixedly provided at the bottom of the float (125).
7. A heat energy recovery and utilization system for feed processing according to claim 5, characterized in that, A buoyancy switch (127) is installed at the end of the inlet pipe of the first water tank (12).