Poultry processing hot water circulating sterilization device

Abstract

This utility model discloses a hot water circulation sterilization device for poultry meat processing, belonging to the technical field of food processing equipment. The device includes a sterilization tank, a first heat exchanger, a first pot body, and a second pot body. The sterilization tank is connected to a circulation pump, which in turn is connected to the first heat exchanger. A spray plate is installed inside the sterilization tank, and the first pot body is connected to the spray plate. The second pot body is connected to a fourth circulation pipe. A first steam pipe is connected to the first heat exchanger, and the first pot body is connected to the first steam pipe. A heater is installed on the second pot body. In the low-temperature stage of segmented heating, this utility model uses external steam to raise the water temperature inside the first pot body to a predetermined temperature, requiring only ordinary low-pressure steam and using a small amount of steam. In the high-temperature stage of segmented heating, it can quickly raise and maintain the temperature inside the sterilization tank for a certain period, resulting in energy saving and environmental protection.

Description

Technical Field

[0001] This utility model belongs to the technical field of food processing equipment, specifically relating to a hot water circulation sterilization device for poultry meat processing. Background Technology

[0002] Poultry meat includes chicken, duck, goose, and other poultry products. During the production and processing of packaged cooked poultry products, secondary sterilization is required after packaging. This secondary sterilization effectively prevents microbial contamination, extends shelf life, and ensures product quality. High-temperature, high-pressure sterilization is typically used. However, because packaged poultry products are often in whole pieces with poor thermal conductivity, heat transfer from the surface to the interior takes a considerable amount of time. If the poultry is kept at high temperatures for an extended period to ensure overall sterilization, the meat's texture deteriorates, nutritional components are significantly damaged, and the taste becomes unpleasant. To ensure sterilization effectiveness and product quality, a segmented hot water heating sterilization method is typically used. During sterilization, the hot water is heated in stages, and each stage is maintained for a specific period. This avoids uneven internal and external temperatures in poultry products, which can lead to incomplete sterilization, or excessively long high-temperature periods, resulting in poor product quality. However, this sterilization method requires a large volume of hot water. If steam heating is used, the external steam volume and temperature must be high, necessitating a large amount of medium- and high-pressure steam and placing high demands on the steam generator. Electric heating, on the other hand, is too energy-intensive and environmentally unfriendly. Utility Model Content

[0003] The technical problem solved by this utility model is to provide a hot water circulation sterilization device for poultry meat processing that reduces the steam requirements during the staged heating sterilization process and reduces energy consumption.

[0004] Technical solution: To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0005] A poultry meat processing hot water circulation sterilization device includes a sterilization tank, a first heat exchanger connected to the sterilization tank, a first pot body connected to the first heat exchanger, and a second pot body connected to the first pot body. The sterilization tank is connected to a circulation pump via a first circulation pipe, and the circulation pump is connected to the first heat exchanger. A spray plate is provided inside the sterilization tank. The first pot body is connected to the spray plate via a fourth circulation pipe, and the second pot body is connected to the fourth circulation pipe via a high-temperature pipe. A first steam pipe is connected to the first heat exchanger, and the first pot body is connected to the first steam pipe via a second steam pipe. A heater is provided on the second pot body.

[0006] Furthermore, the first heat exchanger is provided with a first heat exchange chamber and a second heat exchange chamber, the first pot body is connected to the first heat exchange chamber, the first steam pipe is connected to the second heat exchange chamber, and a first cooling pipe is also connected to the second heat exchange chamber.

[0007] Furthermore, the heater is an electric heater.

[0008] Furthermore, the internal volume of the sterilization tank is V0, the internal volume of the first pot body is V1, V1≤0.5V0, and the internal volume of the second pot body is V2, V2≤0.5V1.

[0009] Furthermore, the spray plate is connected to the inner top wall of the sterilization tank.

[0010] Furthermore, a water supply pipe is connected to the first circulation pipe.

[0011] Furthermore, a lid is movably connected to one end of the sterilization tank, and a storage basket is movably connected to the inner wall of the sterilization tank.

[0012] Furthermore, there are two or more of the storage baskets.

[0013] Beneficial effects: Compared with the prior art, the present invention has the following advantages:

[0014] 1. By setting up a first heat exchanger, a first pot body and a second pot body, in the low-temperature stage of segmented heating, the first heat exchanger uses external steam to bring the water temperature in the first pot body to the predetermined temperature, which only requires ordinary low-pressure steam and the amount of steam used is small.

[0015] 2. An electric heater is installed inside the second pot. Since the sterilization tank is heated by spraying, the amount of water that needs to be heated is small. Also, the volume of the second pot is small, and the water temperature rises quickly. During the high-temperature stage of segmented heating, the temperature inside the sterilization tank can be quickly raised and maintained for a certain period of time, which is energy-saving and environmentally friendly.

[0016] 3. The first heat exchanger is connected to a cooling water pipe, which uses external cooling water to cool the inside of the sterilization tank, preventing water with excessive temperature difference from directly entering the sterilization tank. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the device structure of this utility model. Detailed Implementation

[0018] The present invention will be further illustrated below with reference to specific embodiments. The embodiments are implemented on the premise of the technical solution of the present invention. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0019] like Figure 1As shown, a hot water circulation sterilization device for poultry processing includes a sterilization tank 1, a first heat exchanger 2, a first pot body 3, and a second pot body 4. The sterilization tank 1 is a horizontal pressure vessel with a hollow cylindrical shape. A lid 12 is movably connected to one end of the sterilization tank 1. The lid 12 is a quick-opening lid, allowing the sterilization tank 1 to be opened. A storage basket 13 is movably connected inside the sterilization tank 1. The storage basket 13 is a rectangular basket, and poultry meat bags awaiting sterilization are placed in the storage basket. Inside 13, the storage basket 13 is movably connected to the inner wall of the sterilization tank 1 via a guide rail. After opening the tank lid 12, the storage basket 13 can be moved in or out of the sterilization tank 1. There are two storage baskets 13, one above the other, with a certain distance between them. The sterilization tank 1 is equipped with a spray plate 11, which is connected to the top wall of the sterilization tank 1. The spray plate 11 is a rectangular plate with multiple spray holes arranged in an array on it. The spray holes spray hot water to heat the inside of the sterilization tank 1.

[0020] The bottom of the sterilization tank 1 is connected to the circulation pump 6 via a first circulation pipe 51. The bottom of the sterilization tank 1 has three outlet pipes, all connected to the first circulation pipe 51, thereby improving the hot water circulation speed and heat uniformity. A water supply pipe 50 is connected to the first circulation pipe 51, allowing external water to be introduced to replenish the device. The outlet of the circulation pump 6 is connected to the first heat exchanger 2 via a second circulation pipe. The first heat exchanger 2 is a shell-and-tube heat exchanger, and it contains a first heat exchange chamber and a second heat exchange chamber. The heat exchange chambers are divided into two parts: the first heat exchange chamber is the tube side and the second heat exchange chamber is the shell side. The first heat exchange chamber is connected to the first pot body 3 through the third circulation pipe. The second heat exchange chamber is connected to the first steam pipe 61 and the steam return pipe 63. The first steam pipe 61 and the steam return pipe 63 are connected to an external steam source or a steam generator. The first steam pipe 61 is used to supply steam to the first heat exchanger 2. The steam exchanges heat with the water in the first heat exchange chamber in the first heat exchanger 2 to increase the water temperature. The steam after heat exchange flows back through the steam return pipe 63.

[0021] The first pot body 3 is a smaller horizontal pot body with a volume of V1. The volume of the first pot body 3 is less than or equal to half of the volume V0 of the sterilization tank 1, i.e., V1 ≤ 0.5V0. The bottom of the first pot body 3 is connected to the outer top wall of the sterilization tank 1 by support legs. The first heat exchange chamber of the first heat exchanger 2 is connected to the first pot body 3 through a third circulation pipe. The first pot body 3 is connected to the spray plate 11 through a fourth circulation pipe 54. Thus, the hot water heated by the first heat exchanger 2 enters the spray plate 11 from the first pot body 3 to spray and heat up the sterilization tank 1 for sterilization. The first pot body 3 is connected to the first steam pipe 61 through a second steam pipe 62. External steam can be introduced from the first steam pipe 61 to preheat the water in the first pot body 3.

[0022] The second pot 4 is a small horizontal pot with a volume of V2, where V2 ≤ 0.5V1. The bottom of the second pot 4 is connected to the outer top wall of the first pot 3 via support legs. The first pot 3 is connected to the second pot 4 via a first delivery pump 42, which delivers hot water with a slightly lower temperature from the first pot 3 to the second pot 4. The second pot 4 is equipped with multiple heaters 41, which are electric heaters. Due to the small volume of the second pot 4, the heaters 41 can quickly heat the water inside the second pot 4. The second pot 4 is a pressure vessel, which heats the water under high pressure, with a maximum heating temperature of over 120°C. The second pot 4 is connected to the fourth circulation pipe 54 via a high-temperature pipe 55, so that when the sterilization tank 1 needs to undergo a high-temperature stage of sterilization, the high-temperature water in the second pot 4 is introduced to perform high-temperature sterilization for a specific period of time.

[0023] The inlet of the second heat exchange chamber is also connected to the first cooling pipe 71, and the outlet of the second heat exchange chamber is connected to the cooling water outlet pipe 72. The cooling water outlet pipe 72 is connected to the air-cooled radiator 73. The air-cooled radiator 73 is connected to the first cooling pipe 71 through the second delivery pump 74. When it is necessary to cool down the sterilization tank 1, the connection between the second steam pipe 62 and the first steam pipe 61 and the first heat exchanger 2 is cut off, and cooling water is introduced from the first cooling pipe 71 into the second heat exchange chamber to cool down the hot water. The cooled hot water enters the sterilization tank 1 to gradually cool down the poultry bag.

[0024] When using this device, firstly, according to the pre-set sterilization temperature of the poultry product, it is convenient to carry out segmented sterilization. In this embodiment, the segmented temperature is 60℃-80℃-100℃-120℃. Place the poultry product in the storage basket 13 and close the can lid 12. Put the preheated water that has been heated by steam into the sterilization tank 1 in the first pot body 3. Then, when the water in sterilization tank 1 reaches the designated level, the circulation pump 6 starts working. The water in sterilization tank 1 is heated after passing through the first heat exchanger 2 and sprayed onto the product by the spray plate 11. Since the first heat exchanger 2 introduces external steam, the water temperature can be stabilized and heated to the designated temperature by controlling the amount of steam entering. In the low temperature stage of 60℃ and 80℃, it is only necessary to use steam to heat the water to 60℃ and 80℃ and then let it enter the sterilization tank 1 through the first pot 3 and maintain it for a period of time. At this time, since the hot water temperature is not high, only ordinary low-pressure steam is needed to complete the heating and the amount of steam used is small. When in the temperature stage of 100℃ and 120℃, it is necessary to send the water to the second pot 4 and reheat it through the heater 41 to raise the water to the designated temperature, so that the temperature in sterilization tank 1 is maintained at 100℃ and 120℃ for a period of time, respectively, to achieve the high-temperature sterilization effect without affecting the quality and taste of poultry products. After the sterilization process is completed, steam injection stops at the first steam pipe 61, and cold water is injected into the first heat exchanger 2 through the first cooling pipe 71. The injected cold water gradually lowers the temperature of the hot water in the sterilization tank 1 through the first heat exchanger 2, and the gradually decreasing temperature of the hot water cools the product.

[0025] The above description is only a preferred embodiment of the present utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present utility model, and these improvements and modifications should also be considered within the protection scope of the present utility model.

Claims

1. A hot water circulating sterilization device for poultry processing, characterized by, The device includes a sterilization tank (1), a first heat exchanger (2) connected to the sterilization tank (1), a first pot body (3) connected to the first heat exchanger (2), and a second pot body (4) connected to the first pot body (3). The sterilization tank (1) is connected to a circulation pump (6) via a first circulation pipe (51), and the circulation pump (6) is connected to the first heat exchanger (2). The sterilization tank (1) is equipped with a spray plate (11). The first pot body (3) is connected to the spray plate (11) via a fourth circulation pipe (54). The second pot body (4) is connected to the fourth circulation pipe (54) via a high-temperature pipe (55). The first heat exchanger (2) is connected to a first steam pipe (61). The first pot body (3) is connected to the first steam pipe (61) via a second steam pipe (62). The second pot body (4) is equipped with a heater (41).

2. The poultry processing hot water circulating bactericidal device according to claim 1, characterized in that, The first heat exchanger (2) is provided with a first heat exchange chamber and a second heat exchange chamber. The first pot body (3) is connected to the first heat exchange chamber, the first steam pipe (61) is connected to the second heat exchange chamber, and the second heat exchange chamber is also connected with a first cooling pipe (71).

3. The poultry processing hot water circulating bactericidal device according to claim 1, characterized in that, The heater (41) is an electric heater.

4. The poultry processing hot water circulating bactericidal apparatus according to claim 1, characterized in that, The sterilization tank (1) has an internal volume of V0, the first pot body (3) has an internal volume of V1, V1≤0.5V0, and the second pot body (4) has an internal volume of V2, V2≤0.5V1.

5. The poultry processing hot water circulating bactericidal apparatus according to claim 1, characterized in that, The spray plate (11) is connected to the inner top wall of the sterilization tank (1).

6. The poultry processing hot water circulating bactericidal apparatus according to claim 1, characterized in that, A water supply pipe (50) is connected to the first circulation pipe (51).

7. The poultry meat processing hot water circulation sterilization device according to claim 1, characterized in that, The sterilization container (1) is movably connected to a lid (12) at one end, and a storage basket (13) is movably connected to the inner wall of the sterilization container (1).

8. The poultry meat processing hot water circulation sterilization device according to claim 7, characterized in that, There are two or more of the storage baskets (13).

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