Heat recovery sterilization device
By introducing a heat recovery heat exchanger into the sterilization device, using low-temperature materials to cool down and recover heat, the problem of energy waste during steam heating and cooling in the prior art is solved, and significant energy consumption savings are achieved.
Patent Information
- Application Number
- CN202421124740.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2024-12-31
- Estimated Expiration
- 2034-05-22
AI Technical Summary
Existing sterilization devices consume a lot of steam heat and electricity during heating and cooling, resulting in waste of energy.
A heat recovery and sterilization device is designed. By adding a heat recovery heat exchanger, the low-temperature materials before sterilization are used to cool the sterilized high-temperature materials, recover heat, and reduce the energy consumption of steam heating and cooling towers.
It has achieved 90% saving of heating steam energy consumption and cooling tower fan energy consumption, reducing energy consumption.
Smart Images
Figure CN222264240U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of sterilization devices, in particular to a heat recovery sterilization device. Background Art
[0002] Currently, milk, beverages, soy sauce, soy milk, yogurt, juice, etc. that are to be sterilized are first heated to 135-140 degrees by steam and maintained for 10 seconds for sterilization, and then quickly cooled to room temperature by cooling water heat exchange; however, this step uses steam heating to consume a large amount of steam heat, and the cooling water cooling process consumes a large amount of water pump and cooling tower electricity.
[0003] In view of the above, the present application proposes a heat recovery sterilization device to solve the problem of adding a heat recovery heat exchanger, using the low-temperature material before sterilization to cool down the high-temperature material after sterilization, recovering most of the heat, and reducing the defects of steam heating consuming a large amount of steam heat and cooling water cooling consuming a large amount of water pump and cooling tower electricity. Utility Model Content
[0004] In view of the deficiencies in the prior art, the utility model provides a heat recovery sterilization device, which solves the problems raised in the above background technology.
[0005] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:
[0006] A heat recovery sterilization device, comprising a processing device and a storage tank for storing finished products after being processed by the processing device, wherein the processing device comprises a heat recovery heat exchanger, a steam heat exchanger, a maintenance pipe and a cooling heat exchanger;
[0007] The cold side outlet of the heat recovery heat exchanger is connected to the hot side inlet of the steam heat exchanger through a pipeline;
[0008] The hot side outlet of the steam heat exchanger is connected to the inlet of the maintenance pipe through a pipeline;
[0009] The outlet of the maintenance pipe is connected to the hot side inlet of the heat recovery heat exchanger through a pipeline;
[0010] The hot side outlet of the heat recovery heat exchanger is connected to the hot side inlet of the cooling heat exchanger through a pipeline;
[0011] The hot side outlet of the cooling heat exchanger is connected to the storage tank through a pipeline.
[0012] Optionally, a delivery pipe is connected to the cold side inlet of the heat recovery heat exchanger, and one end of the delivery pipe away from the heat recovery heat exchanger is connected to an external device for carrying non-sterilized products.
[0013] Optionally, the cold side inlet of the steam heat exchanger is connected to an input pipe for conveying steam; a first bypass electric valve is provided on the input pipe.
[0014] Optionally, a second bypass electric valve is provided between the heat recovery heat exchanger and the cooling heat exchanger.
[0015] Optionally, a third bypass electric valve is provided between the cooling heat exchanger and the storage tank.
[0016] Optionally, a connecting pipe is provided in the middle of the input pipe, and one end of the connecting pipe away from the input pipe is connected to the maintaining pipe.
[0017] Optionally, a fourth bypass electric valve is provided at one end of the connecting pipe close to the maintaining pipe.
[0018] The utility model provides a heat recovery sterilization device, which has the following beneficial effects:
[0019] 1. By adding a heat recovery heat exchanger, the low-temperature material before sterilization is used to cool the high-temperature material after sterilization, and most of the heat is recovered; the newly added heat recovery heat exchanger can save the energy consumption of heating steam and the energy consumption of cooling tower fans; it can reduce the problem of large amounts of steam heat consumed in steam heating and large amounts of water pump and cooling tower electricity consumed in the process of cooling water cooling. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] Figure 1 It is a schematic diagram of the structure of the utility model.
[0021] In the figure: 1. storage tank; 2. heat recovery heat exchanger; 3. steam heat exchanger; 4. maintenance pipe; 5. cooling heat exchanger; 6. delivery pipe; 7. input pipe; 8. first bypass electric valve; 9. second bypass electric valve; 10. third bypass electric valve; 11. connecting pipe; 12. fourth bypass electric valve. DETAILED DESCRIPTION
[0022] In order to make the technical means, creative features, objectives and effects of the present invention easier to understand, the present invention is further described below in conjunction with specific embodiments.
[0023] In the description of the present invention, it should be understood that the terms "lateral", "longitudinal", "end", "edge", "sidewall", "up", "down", "upper part", "lower part", "directly above", "surface", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", "end", "head" and "tail" etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the technical solution of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0024] Most of the existing steam heating consumes a lot of steam heat, and the cooling water cooling process consumes a lot of electricity of the water pump and the cooling tower; in order to reduce the loss in this situation, the present application proposes a heat recovery sterilization device to add a heat recovery heat exchanger, and use the low-temperature material before sterilization to cool the high-temperature material after sterilization, and recover most of the heat; the newly added heat recovery heat exchanger can save 90% of the heating steam energy consumption and 90% of the cooling tower fan energy consumption.
[0025] For reference Figure 1 The present application mainly includes a processing device and a storage tank 1 for storing finished products after being processed by the processing device; the unsterilized products are processed by the processing device, and the sterilized products are discharged into the storage tank 1 for collection and storage after processing.
[0026] For reference Figure 1 The treatment device includes a heat recovery heat exchanger 2, a steam heat exchanger 3, a maintenance pipe 4 and a cooling heat exchanger 5; wherein the connection relationship between the treatment devices is as follows:
[0027] The cold side outlet of the heat recovery heat exchanger 2 is connected to the hot side inlet of the steam heat exchanger 3 through a pipeline, and the hot side outlet of the steam heat exchanger 3 is connected to the inlet of the maintaining pipe 4 through a pipeline; the outlet of the maintaining pipe 4 is connected to the hot side inlet of the heat recovery heat exchanger 2 through a pipeline; the hot side outlet of the heat recovery heat exchanger 2 is connected to the hot side inlet of the cooling heat exchanger 5 through a pipeline; the hot side outlet of the cooling heat exchanger 5 is connected to the storage tank 1 through a pipeline.
[0028] The unsterilized product is allowed to enter from the cold side entrance of the heat recovery heat exchanger 2. A delivery pipe 6 is provided at the cold side entrance of the heat recovery heat exchanger 2. One end of the delivery pipe 6 away from the heat recovery heat exchanger 2 is connected to an external device for receiving unsterilized products. The unsterilized product is transported inward through the external device for receiving unsterilized products.
[0029] It should be noted that the products to be sterilized are liquid products such as milk, beverages, soy sauce, soybean milk, yogurt, juice, etc. At the same time, before the unsterilized products are transported to the heat recovery heat exchanger 2, the products before sterilization are heated to the heat recovery heat exchanger 2 at a temperature of 30°C.
[0030] In the processing flow of the processing device, the first step is to connect the 30°C unsterilized product to the cold side inlet of the heat recovery heat exchanger 2, and flow out from the cold side outlet of the heat recovery heat exchanger 2 to obtain a 130°C product; the second step is to allow the 130°C product to enter the steam heat exchanger 3 from the hot side inlet of the steam heat exchanger 3 through a pipeline, so that the product is heated to 140°C, and then enters the maintaining pipe 4 from the hot side outlet of the steam heat exchanger 3, and undergoes 10 seconds of sterilization in the maintaining pipe 4; the third step is to connect the hot side inlet of the heat recovery heat exchanger 2 after working for 10 seconds through the maintaining pipe 4, and control the outflow from the hot side outlet of the heat recovery heat exchanger 2 to obtain a 40°C product, and then; the fourth step is to connect the 40°C product to the hot side inlet of the cooling heat exchanger 5, and the 30°C product flowing out from the hot side outlet of the cooling heat exchanger 5 flows into the storage tank 1 for storage.
[0031] In order to accurately control the temperature of the material entering the storage device after sterilization, a second bypass electric valve 9 is provided between the heat recovery heat exchanger 2 and the cooling heat exchanger 5 and a third bypass electric valve 10 is provided between the cooling heat exchanger 5 and the storage tank 1 .
[0032] At the same time, the cold side inlet of the steam heat exchanger 3 is connected to the input pipe 7 for conveying steam. The input pipe 7 is provided with a first bypass electric valve 8, and the steam flow conveyed inward is managed by the first bypass electric valve 8. During use, the working temperature is controlled by adjusting the steam flow. A connecting pipe 11 is connected to the input pipe 7. The end of the connecting pipe 11 away from the input pipe 7 is connected to the maintaining pipe 4, and a fourth bypass electric valve 12 is provided on the side of the connecting pipe 11 close to the maintaining pipe 4. By adjusting the opening degree of the fourth bypass electric valve 12, the temperature of the steam can be indirectly affected to meet the temperature requirement in the maintaining pipe 4.
[0033] The cold side outlet of the steam heat exchanger 3 is used to discharge steam condensed water; at the same time, when the cooling heat exchanger 5 is working, the cold side inlet of the cooling heat exchanger 5 is used for cooling water to enter, and the cold side outlet of the cooling heat exchanger 5 is used for cooling water to flow.
[0034] It should be noted that, in order to complete the automated operation of the processing settings, multiple sets of sensors can be set up to implement the work; temperature sensors, pressure sensors and flow sensors can be installed at the inlet and outlet of the heat recovery heat exchanger, steam heat exchanger, maintaining pipe and cooling heat exchanger to monitor the temperature changes, pressure changes and flow rate of the medium; the above-mentioned setting of sensors is a prior art means, and this application will not go into details.
[0035] In the utility model, the working steps of the device are as follows:
[0036] 1. First, the 30°C product is transported to the cold side inlet of the heat recovery heat exchanger 2 and flows out from the cold side outlet of the heat recovery heat exchanger 2;
[0037] 2. Secondly, the product treated in step 1 is connected to the hot side inlet of the steam heat exchanger 3, and the material is heated to 140°C, and then transferred from the hot side outlet of the steam heat exchanger 3 to the maintenance pipe 4 for 10 seconds of sterilization;
[0038] 3. Then, the product after the treatment in step 2 is connected to the hot side inlet of the heat recovery heat exchanger 2, and is discharged at a temperature of 40°C through the second bypass electric valve 9;
[0039] 4. Finally, the product processed in step 3 is connected to the hot side inlet of the cooling heat exchanger 5, and is discharged into the storage tank 1 from the hot side outlet of the cooling heat exchanger 5 at a temperature of 30°C through the third bypass electric valve 10.
[0040] The above shows and describes the basic principles, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited to the above embodiments. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of protection claimed by the utility model. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.
Claims
1. A heat recovery sterilization device for treating unsterilized finished products, characterized in that: It comprises a processing device and a storage tank (1) for storing finished products after being processed by the processing device, wherein the processing device comprises a heat recovery heat exchanger (2), a steam heat exchanger (3), a maintenance pipe (4) and a cooling heat exchanger (5); The cold side outlet of the heat recovery heat exchanger (2) is connected to the hot side inlet of the steam heat exchanger (3) through a pipeline; The hot side outlet of the steam heat exchanger (3) is connected to the inlet of the maintenance pipe (4) through a pipeline; The outlet of the maintenance pipe (4) is connected to the hot side inlet of the heat recovery heat exchanger (2) through a pipeline; The hot side outlet of the heat recovery heat exchanger (2) is connected to the hot side inlet of the cooling heat exchanger (5) through a pipeline; The hot side outlet of the cooling heat exchanger (5) is connected to the storage tank (1) through a pipeline.
2. The heat recovery sterilization device according to claim 1, characterized in that: The cold side inlet of the heat recovery heat exchanger (2) is connected to a delivery pipe (6), and one end of the delivery pipe (6) away from the heat recovery heat exchanger (2) is connected to an external device for carrying non-sterilized products.
3. The heat recovery sterilization device according to claim 1, characterized in that: The cold side inlet of the steam heat exchanger (3) is connected to an input pipe (7) for conveying steam; a first bypass electric valve (8) is provided on the input pipe (7).
4. The heat recovery sterilization device according to claim 1, characterized in that: A second bypass electric valve (9) is provided between the heat recovery heat exchanger (2) and the cooling heat exchanger (5).
5. The heat recovery sterilization device according to claim 1, characterized in that: A third bypass electric valve (10) is provided between the cooling heat exchanger (5) and the storage tank (1).
6. The heat recovery sterilization device according to claim 3, characterized in that: A connecting pipe (11) is provided in the middle of the input pipe (7), and one end of the connecting pipe (11) away from the input pipe (7) is connected to the maintaining pipe (4).
7. The heat recovery sterilization device according to claim 6, characterized in that: A fourth bypass electric valve (12) is provided at one end of the connecting pipe (11) close to the maintaining pipe (4).