Sterilizer

Abstract

The application relates to the technical field of food processing, in particular to a sterilization machine which comprises a material balance cylinder, a preheating heat exchanger connected with a discharge port of the material balance cylinder, a sterilization assembly connected with a discharge port of the preheating heat exchanger, and a cooling assembly connected with the sterilization assembly; the sterilization assembly comprises a plurality of sterilization heat exchangers arranged in series, a hot water tank connected with the sterilization heat exchangers in sequence, and a heating heat exchanger for heating hot water sent out by the hot water tank; a steam outlet of the heating heat exchanger is connected with a condensed water inlet of the preheating heat exchanger; the hot water tank, the sterilization heat exchanger and the heating heat exchanger are connected through pipelines to form a hot water circulation loop; the steam for heating the hot water is fully utilized to preheat the material sent out by the material balance cylinder, so that the utilization rate of the steam is improved.

Description

Technical Field

[0001] This application relates to the technical field of food processing, and in particular to a sterilization machine. Background Technology

[0002] In the food processing industry, liquid foods are popular among consumers due to their convenience and ease of absorption, leading to a continuous increase in market demand. From everyday beverages like milk and juice to various sauces and condiments, the production scale of liquid foods is constantly expanding. In the production process of liquid foods, sterilization before bottling is a crucial step in ensuring product quality and safety. It effectively kills harmful microorganisms in liquid foods, extends shelf life, and protects consumer health.

[0003] Currently, high-temperature sterilization is a widely used sterilization method in the field of liquid food processing. This method involves heating liquid food to a certain temperature and maintaining it for a corresponding time, using the high temperature to destroy the biomolecular structure of microorganisms such as proteins and nucleic acids, thereby achieving sterilization.

[0004] However, with the increasing market demand for liquid foods, in order to meet the requirements of rapid filling, liquid foods need to be cooled to a suitable filling temperature after rapid high-temperature sterilization. This rapid heating process is often accompanied by serious energy loss. Utility Model Content

[0005] In order to improve energy utilization, this application provides a sterilization machine.

[0006] This application provides a sterilization machine, which adopts the following technical solution:

[0007] A sterilization machine includes a material balance cylinder, a preheating heat exchanger connected to the outlet of the material balance cylinder, a sterilization component connected to the outlet of the preheating heat exchanger, and a cooling component connected to the outlet of the sterilization component. The cooling component is connected to a filling device. The sterilization component includes multiple sterilization heat exchangers arranged in series, a hot water tank connected to the sterilization heat exchangers in sequence, and a heating heat exchanger for heating the hot water supplied from the hot water tank. The steam outlet of the heating heat exchanger is connected to the condensate inlet of the preheating heat exchanger. The hot water tank, the sterilization heat exchanger, and the heating heat exchanger are connected by pipes to form a hot water circulation loop.

[0008] In one embodiment: a heat recovery heat exchanger is provided between the sterilization component and the cooling component, the outlet of the hot water tank is connected to the heat recovery heat exchanger, the outlet of the heat recovery heat exchanger is connected to the heating heat exchanger, and the outlet of the heating heat exchanger is connected to the sterilization heat exchanger.

[0009] In one embodiment, the cooling assembly includes at least two cooling heat exchangers arranged in series.

[0010] In one embodiment: the cooling component is connected to the feed inlet of the material balance cylinder and the filling equipment via a reversing valve, and the material balance cylinder, the sterilization heat exchanger and the cooling component are connected by pipes to form a material circulation loop.

[0011] In one embodiment: at least one cooling heat exchanger is provided between the reversing valve and the material balance cylinder.

[0012] In one embodiment: the sterilizer includes a mounting frame, and the sterilization heat exchanger, heating heat exchanger, cooling heat exchanger, preheating heat exchanger, recovery heat exchanger and cooling heat exchanger are all arranged in parallel and mounted on the mounting frame.

[0013] In summary, this application has the following beneficial effects:

[0014] 1. Heat can be recovered from the material before it cools down;

[0015] 2. Make full use of the steam generated by hot water heating to preheat the material sent out by the material balance cylinder, thereby improving the steam utilization rate. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the sterilization machine in this embodiment;

[0017] Figure 2 This is a flowchart of the sterilization machine in this embodiment.

[0018] In the diagram, 100 is the support bracket; 200 is the mounting bracket; 300 is the material balance cylinder; 400 is the preheating heat exchanger; 510 is the sterilization heat exchanger; 520 is the hot water tank; 530 is the heating heat exchanger; 610 is the cooling heat exchanger; 700 is the recovery heat exchanger; 800 is the reversing valve; and 900 is the cooling heat exchanger. Detailed Implementation

[0019] The present application will be further described in detail below with reference to the accompanying drawings.

[0020] In the description of this application, it should be understood that the terms "upper", "lower", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0021] A sterilization machine, such as Figure 1 and Figure 2As shown, the system includes a bracket 100, a mounting frame 200, a material balance cylinder 300, a preheating heat exchanger 400, a sterilization component, and a cooling component. The mounting frame 200, the material balance cylinder 300, the preheating heat exchanger 400, the sterilization component, and the cooling component are all mounted on the bracket 100.

[0022] The preheating heat exchanger 400 is connected to the outlet of the material balance cylinder 300 via a pipe, and the outlet of the preheating heat exchanger 400 is connected to the sterilization component via a pipe.

[0023] The sterilization assembly includes multiple sterilization heat exchangers 510 arranged in series, a hot water tank 520 connected in sequence to the sterilization heat exchangers 510, and a heating heat exchanger 530 for heating the hot water sent from the hot water tank 520. The outlet of the preheating heat exchanger 400 is connected to the inlet of one of the sterilization heat exchangers 510.

[0024] The heating heat exchanger 530 is used to heat the hot water sent from the hot water tank 520 with steam. The steam outlet of the heating heat exchanger 530 is connected to the condensate inlet of the preheating heat exchanger 400. The condensate, which still has a high temperature after heat exchange with steam, preheats the material sent from the material balance cylinder 300 in the preheating heat exchanger 400, thereby achieving material preheating.

[0025] In this process, the material delivered by the material balance cylinder 300 flows in the opposite direction to the hot water delivered by the hot water tank 520 in the heating heat exchanger 530. The hot water flows back to the hot water tank 520 after passing through multiple sterilization heat exchangers 510 in sequence. Thus, the hot water tank 520, the sterilization heat exchanger 510 and the heating heat exchanger 530 are connected by pipes to form a hot water circulation loop.

[0026] A heat recovery exchanger 700 is installed between the sterilization component and the cooling component. The outlet of the hot water tank 520 is connected to the heat recovery exchanger 700, the outlet of the heat recovery exchanger 700 is connected to the heating heat exchanger 530, and the outlet of the heating heat exchanger 530 is connected to the sterilization heat exchanger 510. Thus, by placing the heat recovery exchanger 700 between the heating heat exchanger 530 and the hot water tank 520, heat recovery can be achieved by preheating the hot water with the material that has undergone high-temperature sterilization.

[0027] The cooling assembly includes at least two cooling heat exchangers 610 arranged in series; in this embodiment, two are used as an example. To achieve faster cooling, one cooling heat exchanger 610 connected to the recovery heat exchanger 700 uses cold water for heat exchange and cooling, while the second cooling heat exchanger 610 uses ice water for cooling.

[0028] The cooling component is connected to the inlet of the material balance cylinder 300 and the filling equipment through the reversing valve 800. The material balance cylinder 300, the sterilization heat exchanger 510 and the cooling component are connected by pipes to form a material circulation loop.

[0029] At least one cooling heat exchanger 900 is installed between the reversing valve 800 and the material balance cylinder 300. The cooling heat exchanger 900 further cools the material flowing back to the material balance cylinder 300. The material is stored in the material balance cylinder 300. A level gauge is installed in the material balance cylinder 300 to detect the liquid level in the material balance cylinder 300, so as to avoid the material being too little and unable to achieve normal feeding, or the material being too much and overflowing.

[0030] The sterilization heat exchanger 510, heating heat exchanger 530, cooling heat exchanger 900, preheating heat exchanger 400, recovery heat exchanger 700 and cooling heat exchanger 610 are all arranged in parallel and installed on the mounting bracket 200. This arrangement can reduce the size of the entire equipment.

[0031] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A sterilizer characterized by: The system includes a material balance cylinder (300), a preheating heat exchanger (400) connected to the outlet of the material balance cylinder (300), a sterilization component connected to the outlet of the preheating heat exchanger (400), and a cooling component connected to the outlet of the sterilization component. The cooling component is connected to the filling equipment. The sterilization component includes multiple sterilization heat exchangers (510) arranged in series, a hot water tank (520) connected to the sterilization heat exchanger (510) in sequence, and a heating heat exchanger (530) for heating the hot water sent out from the hot water tank (520). The steam outlet of the heating heat exchanger (530) is connected to the condensate inlet of the preheating heat exchanger (400). The hot water tank (520), the sterilization heat exchanger (510), and the heating heat exchanger (530) are connected by pipes to form a hot water circulation loop.

2. The sterilizer according to claim 1, characterized in that: A heat recovery heat exchanger (700) is provided between the sterilization component and the cooling component. The outlet of the hot water tank (520) is connected to the heat recovery heat exchanger (700). The outlet of the heat recovery heat exchanger (700) is connected to the heating heat exchanger (530). The outlet of the heating heat exchanger (530) is connected to the sterilization heat exchanger (510).

3. The sterilizer according to claim 2, characterized in that: The cooling assembly includes at least two cooling heat exchangers (610) arranged in series.

4. The sterilizer according to claim 3, characterized in that: The cooling component is connected to the inlet of the material balance cylinder (300) and the filling equipment through a reversing valve (800). The material balance cylinder (300), the sterilization heat exchanger (510) and the cooling component are connected by pipelines to form a material circulation loop.

5. The sterilizer according to claim 4, characterized in that: At least one cooling heat exchanger (900) is provided between the reversing valve (800) and the material balance cylinder (300).

6. The sterilizer according to claim 5, characterized in that: The sterilizer includes a mounting frame (200), and the sterilization heat exchanger (510), heating heat exchanger (530), cooling heat exchanger (900), preheating heat exchanger (400), recovery heat exchanger (700) and cooling heat exchanger (610) are all arranged in parallel and installed on the mounting frame (200).

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