Energy-saving sterilization system

Abstract

The utility model provides an energy-saving sterilization system which comprises a sterilizer, a hot water container and a cold water container, the sterilizer is provided with a circulating water inlet and a circulating water outlet, a hot water circulating pipeline and a cold water circulating pipeline are connected between the circulating water inlet and the circulating water outlet, a first heat exchanger is connected in the hot water circulating pipeline and exchanges heat with a heating medium, and a second heat exchanger is connected in the cold water circulating pipeline. A second heat exchanger is connected in the cold water circulation pipeline and exchanges heat with the refrigerant; a hot water supply and recovery pipeline is connected between the hot water container and the sterilizer, a cold water supply and recovery pipeline is connected between the cold water container and the sterilizer, and water pumps and electric control valves are arranged in the hot water circulation pipeline, the cold water circulation pipeline, the hot water supply and recovery pipeline and the cold water supply and recovery pipeline. The energy-saving sterilization system disclosed by the utility model can realize replacement of circulating water before and after sterilization, so that heat energy is saved, rapid heating and cooling of a product are favorably realized, and the quality of the product is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of sterilization systems, in particular to an energy-saving sterilization system. Background Art

[0002] The water bath sterilizer immerses the packaged items in hot water. The packaging bag isolates the items from the hot water. The hot water heats the items in the packaging bag through heat transfer and achieves the sterilization effect. When sterilizing, this equipment first needs to heat the circulating water in the sterilizer to the sterilization temperature through a heat exchanger, and then keep the product at the sterilization temperature for a certain period of time. After sterilization, the circulating water needs to be cooled down by a heat exchanger to cool the product. In the process of heating and cooling the circulating water, taking 6 tons of circulating water as an example, heating 40℃ circulating water to 80℃ theoretically requires about 1.01GJ of steam; reducing 121℃ hot water to 40℃ requires the release of 2.02GJ of heat, and there is a lot of heat energy loss in this process. In addition, for some products (such as peritoneal dialysis fluid), if the product is in an environment greater than 80℃ for a long time after sterilization, its physical properties will change significantly and cannot meet the product quality standards. Utility Model Content

[0003] In order to make up for the deficiencies in the prior art, the utility model provides an energy-saving sterilization system that can achieve replacement of circulating water before and after sterilization, save heat energy, facilitate rapid temperature rise and fall of the product, and ensure product quality.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0005] An energy-saving sterilization system comprises a sterilizer, a hot water container, and a cold water container, wherein the sterilizer is provided with a circulating water inlet and a circulating water outlet, a hot water circulation pipeline and a cold water circulation pipeline are connected between the circulating water inlet and the circulating water outlet, a first heat exchanger is connected in the hot water circulation pipeline, the first heat exchanger exchanges heat with a heat medium, and a second heat exchanger is connected in the cold water circulation pipeline, the second heat exchanger exchanges heat with a cold medium;

[0006] A hot water supply and recovery pipeline is connected between the hot water container and the sterilizer, and a cold water supply and recovery pipeline is connected between the cold water container and the sterilizer. Water pumps and electrical control valves are provided in the hot water circulation pipeline, the cold water circulation pipeline, the hot water supply and recovery pipeline, and the cold water supply and recovery pipeline.

[0007] Furthermore, an emergency pipeline is connected between the hot water container and the cold water container, and an electrical control valve is provided in the emergency pipeline.

[0008] Furthermore, the hot water supply and recovery pipeline includes a hot water supply pipeline and a hot water recovery pipeline, and the hot water recovery pipeline is provided with a parallel water pump and a check valve.

[0009] Furthermore, the installation height of the hot water container is greater than the installation height of the sterilizer, and no water pump is provided in the hot water supply pipeline.

[0010] Furthermore, the cold water supply and recovery pipeline includes a cold water supply pipeline and a cold water recovery pipeline, and the cold water supply pipeline and the cold water recovery pipeline are both provided with a water pump and a check valve.

[0011] Furthermore, the water outlet end of the cold water supply pipeline is connected to the cold water circulation pipeline, and an electrical control valve is provided in the cold water supply pipeline.

[0012] Furthermore, the water inlet end of the hot water recovery pipeline, the water outlet end of the hot water supply pipeline, and the water inlet end of the cold water recovery pipeline are connected to the same interface of the sterilizer.

[0013] Furthermore, the sterilizer is connected with an air inlet pipeline, an exhaust pipeline, a water inlet pipeline and a first sewage discharge pipeline.

[0014] Furthermore, the hot water container is connected to a second sewage pipeline, and the cold water container is connected to a third sewage pipeline.

[0015] Compared with the prior art, the utility model has the following beneficial technical effects:

[0016] The energy-saving sterilization system of the utility model is provided with a hot water container and a cold water container connected to the sterilizer. In the heating stage of the sterilization process, the high-temperature hot water in the hot water container can be added into the sterilizer to shorten the heating time. In the cooling stage, the hot water in the sterilizer can be recovered into the hot water container, and the cold water in the cold water container can be added into the sterilizer. After cooling, the cold circulating water in the sterilizer is recovered into the cold water container. The utility model can realize circulating water replacement, save heat energy, and realize rapid heating and cooling of the product before and after sterilization, thereby ensuring the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of an energy-saving sterilization system of the utility model.

[0018] Among them: 1. Sterilizer; 11. Circulating water inlet; 12. Circulating water outlet; 2. Hot water container; 3. Cold water container; 4. First heat exchanger; 5. Second heat exchanger; 6. Electrical control valve; 7. Water pump; 8. Check valve. DETAILED DESCRIPTION

[0019] Many specific details are described in the following description to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways different from the description, and those skilled in the art can make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0020] Example 1

[0021] like Figure 1 As shown, an energy-saving sterilization system includes a sterilizer 1, a hot water container 2, and a cold water container 3. The sterilizer 1 is provided with a circulating water inlet 11 and a circulating water outlet 12. A hot water circulation pipeline and a cold water circulation pipeline are connected between the circulating water inlet 11 and the circulating water outlet 12.

[0022] The hot water circulation pipeline is connected to a first heat exchanger 4, which exchanges heat with a heat medium, preferably steam, to increase the temperature of the circulating water in the pipeline. The cold water circulation pipeline is connected to a second heat exchanger 5, which exchanges heat with a cold medium, preferably cold water, to reduce the temperature of the circulating water in the pipeline.

[0023] The hot water circulation pipeline and the cold water circulation pipeline can be set separately or in combination. In this embodiment, a common pipeline is preferably used, and the first heat exchanger 4 and the second heat exchanger 5 are connected in parallel in the common pipeline. By setting an electrical control valve 6 at the parallel connection, the hot water circulation pipeline and the cold water circulation pipeline are switched.

[0024] A hot water supply and recovery pipeline is connected between the hot water container 2 and the sterilizer 1. The installation height of the hot water container 2 is greater than the installation height of the sterilizer 1. The hot water supply and recovery pipeline includes a hot water supply pipeline and a hot water recovery pipeline. The hot water recovery pipeline is provided with an electrical control valve 6, and a parallel water pump 7 and a check valve 8. One of the water pumps 7 is used as a backup to prevent the product from being scrapped due to a water pump failure. The hot water supply pipeline is provided with an electrical control valve 6 but no water pump, and the hot water in the hot water container 2 is added to the sterilizer 1 by gravity.

[0025] A cold water supply and recovery pipeline is connected between the cold water container 3 and the sterilizer 1. The cold water supply and recovery pipeline includes a cold water supply pipeline and a cold water recovery pipeline, and a water pump 7 and a check valve 8 are provided in the cold water supply pipeline and the cold water recovery pipeline. The water outlet of the cold water supply pipeline is connected to the cold water circulation pipeline, and an electrical control valve 6 and a water pump 7 are provided in the cold water supply pipeline. The cold water in the cold water container 3 is added to the sterilizer 1 from the circulating water inlet 11 through the cold water circulation pipeline.

[0026] The installation height of the cold water container 3 is greater than that of the hot water container 2. An emergency pipeline is connected between the hot water container 2 and the cold water container 3, and an electrical control valve 6 is provided in the emergency pipeline. When a problem occurs with the water pump of the cold water container 3, the emergency pipeline can collect cold water into the hot water container 2 by switching the water pump of the hot water container 2 and the electrical control valve.

[0027] The water inlet end of the hot water recovery pipeline, the water outlet end of the hot water supply pipeline, and the water inlet end of the cold water recovery pipeline are connected to the same interface of the sterilizer 1, and an electrical control valve 6 is provided at the interface of the sterilizer 1. By switching the electrical control valves and water pumps of the corresponding pipelines, hot water supply, hot water recovery, and cold water recovery can be realized respectively.

[0028] The sterilizer 1 is connected with an air inlet pipeline, an exhaust pipeline, a water inlet pipeline and a first sewage pipeline. The hot water container is connected with a second sewage pipeline, and the cold water container is connected with a third sewage pipeline.

[0029] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. However, any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An energy-saving sterilization system, characterized in that: It includes a sterilizer, a hot water container, and a cold water container. The sterilizer is provided with a circulating water inlet and a circulating water outlet. A hot water circulation pipeline and a cold water circulation pipeline are connected between the circulating water inlet and the circulating water outlet. A first heat exchanger is connected in the hot water circulation pipeline, and the first heat exchanger exchanges heat with a heat medium. A second heat exchanger is connected in the cold water circulation pipeline, and the second heat exchanger exchanges heat with a cold medium. A hot water supply and recovery pipeline is connected between the hot water container and the sterilizer, and a cold water supply and recovery pipeline is connected between the cold water container and the sterilizer. Water pumps and electrical control valves are provided in the hot water circulation pipeline, the cold water circulation pipeline, the hot water supply and recovery pipeline, and the cold water supply and recovery pipeline.

2. The energy-saving sterilization system according to claim 1, characterized in that: An emergency pipeline is connected between the hot water container and the cold water container, and an electrical control valve is arranged in the emergency pipeline.

3. The energy-saving sterilization system according to claim 1 or 2, characterized in that: The hot water supply and recovery pipeline comprises a hot water supply pipeline and a hot water recovery pipeline, and the hot water recovery pipeline is provided with a parallel water pump and a check valve.

4. The energy-saving sterilization system according to claim 3 is characterized in that: The installation height of the hot water container is greater than the installation height of the sterilizer, and no water pump is provided in the hot water supply pipeline.

5. The energy-saving sterilization system according to claim 4, characterized in that: The cold water supply and recovery pipeline comprises a cold water supply pipeline and a cold water recovery pipeline, and a water pump and a check valve are arranged in the cold water supply pipeline and the cold water recovery pipeline.

6. The energy-saving sterilization system according to claim 5, characterized in that: The water outlet end of the cold water supply pipeline is connected to the cold water circulation pipeline, and an electrical control valve is arranged in the cold water supply pipeline.

7. The energy-saving sterilization system according to claim 6, characterized in that: The water inlet end of the hot water recovery pipeline, the water outlet end of the hot water supply pipeline, and the water inlet end of the cold water recovery pipeline are connected to the same interface of the sterilizer.

8. The energy-saving sterilization system according to claim 7, characterized in that: The sterilizer is connected with an air inlet pipeline, an exhaust pipeline, a water inlet pipeline and a first sewage discharge pipeline.

9. The energy-saving sterilization system according to claim 8, characterized in that: The hot water container is connected to a second sewage pipeline, and the cold water container is connected to a third sewage pipeline.

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