Energy-saving steam supply equipment for live pig slaughtering

Abstract

The utility model discloses an energy -saving live pig slaughtering steam supply equipment relates to steam supply technical field, aims at solving the technical problem that heating pipeline exists low heat exchange efficiency, high fuel consumption, including steam generator and propulsion type scalding pool, the heating box is fixedly installed in the bottom of propulsion type scalding pool, the inside of heating box is provided with energy -conserving mechanism, the outside of energy -conserving mechanism is provided with the auxiliary mechanism that cooperates with it. The utility model discloses through the dividing block in the straight pipe portion and divide the main stream channel into the branch stream channel, make high -temperature steam contact with the heat conduction column continuously, and further expand the contact area with the water body in heating box through the spiral fin fixed on the heat exchange plate, realize steam heat to the multiple transmission of water body, avoid steam and discharge before not fully heat release, significantly improve heat exchange efficiency, reduce steam consumption, solve the problem that heating pipeline exists steam heat waste, low heat exchange efficiency, high fuel consumption.

Description

Technical Field

[0001] This utility model relates to the field of steam supply technology, and more specifically, to an energy-saving steam supply device for pig slaughtering. Background Technology

[0002] In the production process of the pig slaughtering industry, the push-type scalding tank is the core equipment for scalding pigs. The stability and uniformity of the internal water temperature directly determine the scalding effect, the subsequent hair removal efficiency, and the final quality of the pig products. As the core heating source of the scalding tank, the heat exchange efficiency, energy utilization rate, and operational stability of the steam supply equipment have a key impact on the production efficiency, cost control, and product quality of the entire slaughtering production line.

[0003] Traditional steam supply equipment typically uses straight or simple bends in its heating pipes. The steam flow path within these pipes is short and limited, resulting in a small contact area and short contact time between the high-temperature steam and the pipe wall. This leads to a significant waste of steam heat as a large amount of steam cools and condenses before fully releasing its heat. Furthermore, when steam first enters the pipe, the initial low pipe wall temperature creates a noticeable temperature gradient, causing some steam to condense rapidly on the inner wall. This condensate film further hinders heat exchange between subsequent steam and the pipe wall, significantly reducing heat exchange efficiency. To maintain the required process water temperature in the scalding tank, the steam generator must continuously output more steam, directly increasing fuel consumption and operating costs. Therefore, we propose an energy-saving steam supply system for pig slaughtering. Utility Model Content

[0004] The purpose of this utility model is to overcome the shortcomings of the existing technology, adapt to the needs of reality, and provide an energy-saving steam supply equipment for pig slaughtering, so as to solve the technical problems of low heat exchange efficiency and high fuel consumption in current heating pipelines.

[0005] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an energy-saving steam supply equipment for pig slaughtering, including a steam generator and a propulsion scalding tank. A heating box is fixedly installed at the bottom of the propulsion scalding tank. An energy-saving mechanism is provided inside the heating box. An auxiliary mechanism is provided outside the energy-saving mechanism to cooperate with it. The energy-saving mechanism includes a main channel and at least one dividing block. The main channel is divided into a branch channel by the dividing block. The end of the branch channel is provided with an arc-shaped guide part that guides the fluid inside to the center of the main channel. The auxiliary mechanism includes a heat-conducting column disposed in the outlet direction of the arc-shaped guide part. The heat-conducting column penetrates the pipe wall of the energy-saving mechanism and extends outward. A heat exchange plate is fixedly connected to the part located outside the pipe.

[0006] Preferably, the energy-saving mechanism further includes a steam supply pipe connected to the steam outlet of the steam generator. A serpentine pipe is fixedly installed at the end of the steam supply pipe away from the steam generator. The serpentine pipe consists of a straight section and a bend section. The dividing block is located inside the straight section. A condensate return pipe is fixedly installed at the tail end of the serpentine pipe and is connected to the water supply tank of the steam generator.

[0007] Preferably, the auxiliary mechanism further includes multiple fins, which are fixedly installed on the side of the heat exchange plate away from the heat conduction column, and guide vanes are fixedly installed on the outer side of the fins.

[0008] Preferably, it also includes a water pump, the water pump's suction pipe being located at the bottom of the heating box, and its outlet pipe leading to the interior of the push-type hot water tank.

[0009] Preferably, the fin is a spiral fin, and the guide vanes are fixedly installed on the inner side of the fin.

[0010] Preferably, the outlet direction of the arc-shaped guide portion points towards the heat-conducting column.

[0011] Compared with the prior art, the beneficial effects of this utility model are:

[0012] 1. This utility model uses a dividing block inside the straight pipe to separate the main channel into branch channels. With the help of the arc-shaped guide, the steam in the branch channel can be accurately guided to the heat-conducting column in the center of the main channel, so that the high-temperature steam can continuously contact the heat-conducting column. The heat-conducting column quickly transfers heat to the heat exchange plate. The spiral fins fixed on the heat exchange plate further expand the contact area with the water in the heating box, realizing multiple transfer of steam heat to water. This avoids the steam being discharged before it has fully released heat, significantly improves heat exchange efficiency, reduces steam consumption, and solves the problems of low heat exchange efficiency and high fuel consumption in heating pipes.

[0013] 2. This utility model also effectively solves the problem of scale buildup on the outer wall of traditional heating pipes through the synergistic effect of the guide vanes and the water circulation of the water pump. The guide vanes are fixed inside the fins. During the water pumping process, when the water flows through the outside of the straight pipe section, the guide vanes will spirally guide and repeatedly cut the water flow, causing the water flow to rotate on the outside of the straight pipe section and generate strong eddies and flow separation. This flow state can greatly destroy the thermal boundary layer between the water flow and the serpentine pipe wall, continuously scraping up and entraining the superheated water at the pipe wall and violently mixing it with the low-temperature water. This not only further improves the heat transfer efficiency, but also prevents trace minerals in the water from precipitating on the high-temperature pipe wall surface and forming scale. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the external structure of this utility model;

[0015] Figure 2This is a schematic diagram of the top structure of the heating box of this utility model;

[0016] Figure 3 This is a schematic cross-sectional view of the heating box of this utility model;

[0017] Figure 4 This is a cross-sectional structural diagram of the energy-saving mechanism of this utility model;

[0018] Figure 5 This is a schematic cross-sectional view of the straight pipe section of this utility model;

[0019] Figure 6 This is a schematic diagram of the heat exchange plate and related structures of this utility model.

[0020] The following are the labels in the diagram: 1. Steam generator; 11. Inlet pipe; 2. Energy-saving mechanism; 21. Steam supply pipe; 22. Serpentine pipe; 221. Straight pipe section; 222. Bend section; 23. Condensate return pipe; 24. Main channel; 241. Branch channel; 242. Arc-shaped guide section; 25. Dividing block; 3. Auxiliary mechanism; 31. Heat-conducting column; 32. Heat exchange plate; 33. Fin; 34. Guide vane; 4. Propulsion-type hot water tank; 41. Heating box; 5. Water pump; 51. Suction pipe; 52. Outlet pipe. Detailed Implementation

[0021] Example: Figures 1 to 6As shown, this utility model relates to an energy-saving steam supply device for pig slaughtering, including a steam generator 1 and a propeller-type scalding tank 4, and a water pump 5. The suction pipe 51 of the water pump 5 is located at the bottom of the heating box 41, and its outlet pipe 52 leads to the interior of the propeller-type scalding tank 4. The heating box 41 is fixedly installed at the bottom of the propeller-type scalding tank 4. An energy-saving mechanism 2 is provided inside the heating box 41, and an auxiliary mechanism 3 is provided outside the energy-saving mechanism 2 to cooperate with it. The energy-saving mechanism 2 includes a main channel 24 and at least one dividing block 25. The main channel 24 is divided into a branch channel 241 by the dividing block 25. The end of the branch channel 241 is provided with an arc-shaped guide part 242 that guides the fluid inside to the center of the main channel 24. The auxiliary mechanism 3 includes a heat-conducting column 31 located in the outlet direction of the arc-shaped guide part 242. The heat-conducting column 31 penetrates the pipe wall of the energy-saving mechanism 2 and extends towards the center of the main channel 2. The outer extension has a heat exchange plate 32 fixedly connected to the part located outside the pipe. The outlet direction of the arc-shaped guide 242 points to the heat-conducting column 31. This utility model uses the dividing block 25 in the straight pipe 221 to separate the main channel 24 into a branch channel 241. With the help of the arc-shaped guide 242, the steam in the branch channel 241 can be accurately guided to the heat-conducting column 31 in the center of the main channel 24, so that the high-temperature steam can continuously contact the heat-conducting column 31. The heat-conducting column 31 quickly transfers heat to the heat exchange plate 32, and the contact area with the water in the heating box 41 is further expanded by the spiral fins 33 fixed on the heat exchange plate 32. This realizes multiple transfer of steam heat to the water, avoids steam being discharged before it has fully released heat, significantly improves heat exchange efficiency, reduces steam consumption, and solves the problems of steam heat waste, low heat exchange efficiency, and high fuel consumption in heating pipes.

[0022] Furthermore, such as Figures 3 to 5 As shown, the energy-saving mechanism 2 also includes a steam supply pipe 21, which is connected to the steam outlet of the steam generator 1. A serpentine pipe 22 is fixedly installed at the end of the steam supply pipe 21 away from the steam generator 1. The serpentine pipe 22 consists of a straight pipe section 221 and a bend section 222. A dividing block 25 is located inside the straight pipe section 221. A condensate return pipe 23 is fixedly installed at the tail end of the serpentine pipe 22. The condensate return pipe 23 is connected to the feed water tank of the steam generator 1. The condensate formed after the steam releases heat in the serpentine pipe 22 flows back to the feed water tank of the steam generator 1 through the condensate return pipe 23. This condensate still carries a high temperature, avoiding the heat loss caused by the direct discharge of condensate by traditional equipment.

[0023] It should be noted that the process of external water being softened by a softening device before entering the water supply tank and then flowing into the steam generator 1 is within the scope of existing technology. This equipment does not improve this existing process. Instead, it introduces the high-temperature condensate generated by the serpentine pipe 22 into the water supply tank through the condensate return pipe 23, mixing it with the softened external water to increase the inlet water temperature entering the steam generator 1, thereby achieving energy-saving effects.

[0024] Furthermore, such as Figures 5 to 6 As shown, the auxiliary mechanism 3 also includes multiple fins 33, which are spiral fins. Guide vanes 34 are fixedly installed on the inner side of the fins 33. The fins 33 are fixedly installed on the side of the heat exchange plate 32 away from the heat conduction column 31. Guide vanes 34 are fixedly installed on the outer side of the fins 33. Through the synergistic effect of the guide vanes 34 and the water circulation of the water pump 5, the problem of scale buildup on the outer wall of traditional heating pipes is effectively solved. The guide vanes 34 are fixed on the inner side of the fins 33. During the water pumping process, when the water flows through the outside of the straight pipe section 221, the guide vanes 34 will spirally guide and repeatedly cut the water flow, causing the water flow to rotate on the outside of the straight pipe section 221 and generate strong vortices and flow separation. This flow state can greatly destroy the thermal boundary layer between the water flow and the wall of the serpentine pipe 22, continuously scraping up and entraining the superheated water at the pipe wall and violently mixing it with the low-temperature water. This not only further improves the heat transfer efficiency, but also prevents trace minerals in the water from precipitating on the surface of the high-temperature pipe wall and forming scale.

[0025] Working principle: This embodiment provides an energy-saving steam supply device for pig slaughtering. When in use, the steam supply pipe 21 is connected to the steam pipe of the steam generator 1, and the external water source inlet pipe 11 is connected to the water softening device of the steam generator 1. The steam generated by the steam generator 1 enters the interior of the serpentine tube 22 and flows through the straight pipe section 221 and the bend section 222. When the high-temperature superheated steam first enters the cold serpentine tube 22, sensible heat exchange occurs first. Steam transfers heat to the pipe wall, causing its own temperature to drop rapidly until it reaches the saturation temperature at that pressure. Once the steam reaches the saturation temperature, it begins to release latent heat of vaporization, which then exchanges heat with the water inside the propeller-type hot water tank 4. The water generated by vaporization enters the water supply tank of the steam generator 1 through the condensate return pipe 23. The water pump 5 is started, and the water pump 5 draws away the water from the bottom of the propeller-type hot water tank 4, that is, the heating box 41, and injects it back into the tank through the water outlet pipe 52, forming a strong water flow to stir, lift and mix the water inside the propeller-type hot water tank 4, ultimately achieving the purpose of uniform temperature in the propeller-type hot water tank 4.

[0026] When steam enters the straight section 221 of the serpentine tube 22, it flows through the main channel 24 and continues in the following direction. After passing the dividing block 25, some steam enters the branch channel 241. After passing the arc-shaped guide section 242 at the end of the branch channel 241, it is guided to the main channel 24. The steam in the branch channel 241 impacts the heat-conducting column 31 located at the outlet end of the arc-shaped guide section 242. The heat-conducting column 31 is also located at the center of the main channel 24, so that the heat-conducting column 31 is always in contact with the high-temperature steam. The heat-conducting column 31 transfers heat to the heat exchange plate 32, and the fins 33 fixedly installed on the outside of the heat-conducting column 31 are used to transfer heat to heat the water inside the heating box 41.

[0027] During the process of water pump 5 drawing water using suction pipe 51, when the water flows through the outside of straight pipe section 221, it is guided by the spiral of fins 33 and guide vanes 34 fixedly installed on the outside of fins 33. This causes the water flow to rotate outside straight pipe section 221, and the guide vanes 34 repeatedly cut and guide the water, generating strong eddies and flow separation. This greatly disrupts the thermal boundary layer, continuously scraping and entraining the superheated water at the pipe wall, and violently mixing it with the low-temperature cold water. This eliminates the resistance of the thermal boundary layer, allowing heat from the pipe wall to be transferred to the water without hindrance, and preventing the water from being trapped inside. The scale formed by the precipitation of trace minerals dissolved in the water adheres to the outside of the serpentine tube 22, thereby greatly improving the heat exchange efficiency. Under the same steam input, more heat can be transferred to the pool water. This means that less steam and lower pressure can be used to maintain the process water temperature, reducing the fuel consumption of the steam generator. Moreover, the water formed by vaporization still has a certain temperature and is circulated into the feed water tank of the steam generator 1. The external water source is also softened by the softening equipment and enters the feed water tank, so that the water entering the steam generator 1 is hot water, thereby achieving the effect of energy saving.

[0028] The embodiments disclosed herein are preferred embodiments, but are not limited thereto. Those skilled in the art can readily grasp the spirit of this utility model based on the above embodiments and make different extensions and variations. However, as long as they do not depart from the spirit of this utility model, they are all within the protection scope of this utility model.

Claims

1. An energy-saving steam supply device for pig slaughtering, comprising a steam generator (1) and a push-type scalding tank (4), characterized in that, The bottom of the push-type hot water tank (4) is fixedly installed with a heating box (41), and an energy-saving mechanism (2) is provided inside the heating box (41). An auxiliary mechanism (3) is provided outside the energy-saving mechanism (2) to cooperate with it. The energy-saving mechanism (2) includes a main channel (24) and at least one dividing block (25). The main channel (24) is divided into a branch channel (241) by the dividing block (25). The end of the branch channel (241) is provided with an arc-shaped guide (242) that guides the fluid inside to the center of the main channel (24). The auxiliary mechanism (3) includes a heat-conducting column (31) disposed in the outlet direction of the arc-shaped guide (242). The heat-conducting column (31) penetrates the tube wall of the energy-saving mechanism (2) and extends outward. The part of it located outside the tube is fixedly connected to a heat exchange plate (32).

2. The energy-saving steam supply equipment for pig slaughtering according to claim 1, characterized in that, The energy-saving mechanism (2) also includes a steam supply pipe (21), which is connected to the steam outlet of the steam generator (1). A serpentine pipe (22) is fixedly installed at the end of the steam supply pipe (21) away from the steam generator (1). The serpentine pipe (22) is composed of a straight pipe section (221) and a bent section (222). The segmented block (25) is located inside the straight pipe section (221); The serpentine tube (22) is fixedly installed with a condensate return pipe (23) at its tail end, and the condensate return pipe (23) is connected to the water supply tank of the steam generator (1).

3. The energy-saving steam supply equipment for pig slaughtering according to claim 2, characterized in that, The auxiliary mechanism (3) also includes a plurality of fins (33), which are fixedly installed on the side of the heat exchange plate (32) away from the heat conduction column (31), and guide vanes (34) are fixedly installed on the outer side of the fins (33).

4. The energy-saving steam supply equipment for pig slaughtering according to claim 1, characterized in that, It also includes a water pump (5), the suction pipe (51) of which is located at the bottom of the heating box (41), and its outlet pipe (52) leads to the interior of the push-type hot tub (4).

5. The energy-saving steam supply equipment for pig slaughtering according to claim 3, characterized in that, The fin (33) is a spiral fin (33), and the guide vane (34) is fixedly installed on the inner side of the fin (33).

6. The energy-saving steam supply equipment for pig slaughtering according to claim 3, characterized in that, The outlet direction of the arc-shaped guide (242) is directed towards the heat-conducting column (31).

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