Novel ultra-high-temperature sterilization machine for dairy products

By designing an arc-shaped spiral protein holding tube and fixing components, the clogging problem of traditional ultra-high temperature sterilizers for dairy products was solved, achieving a more efficient sterilization effect and a stable production process.

CN223787045UActive Publication Date: 2026-01-13BEIJING TIANCHEN DAIRY CO LTD
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Patent Information

Application Number
CN202520406462.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-10
Publication Date
2026-01-13
Estimated Expiration
2035-03-10

AI Technical Summary

Technical Problem

Traditional ultra-high temperature sterilization machines for dairy products are prone to clogging, leading to reduced production efficiency and increased maintenance costs.

Method used

The design incorporates an arc-shaped spiral protein retention tube, along with fixing components such as a fixing frame, adjusting seat, and locking rod, to ensure the stability of dairy products at high temperatures and prevent protein denaturation and adhesion. The combination of the fixing tube and the heating plate maintains temperature uniformity.

Benefits of technology

Extending the time dairy products spend in the sterilizer improves sterilization efficiency and production continuity, reduces the risk of tube sticking, and increases equipment operating time and capacity.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of dairy products, in particular to a novel ultra-high-temperature sterilization machine for dairy products, which comprises a base, a sterilization machine main body arranged at the top of the base, a heat preservation cover arranged above the base and a protein retaining pipe, and is characterized in that a fixing component is arranged in the heat preservation cover; the fixing assembly comprises a fixing frame fixedly installed on the top of the base and an adjusting base movably connected to the top of the fixing frame. According to the novel ultra-high-temperature sterilization machine for the dairy products, the protein retaining pipe is designed into the coil pipe matched with the ultra-high-temperature sterilization machine in length and width, after the protein retaining pipe is lengthened, the time of the dairy products in the protein retaining pipe lasts from several seconds to about one minute, and fresh milk can be kept for a longer time at a high temperature; therefore, dairy products can be more stable before entering the sterilization machine, protein is more stable, and the situation that some protein is denatured and adheres to a pipeline at the ultrahigh temperature, so that the sterilization effect is affected by the pipeline with the thickened inner wall is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of dairy product technology, specifically a novel ultra-high temperature sterilization machine for dairy products. Background Technology

[0002] As people's requirements for food safety and hygiene increase, the sterilization technology in the dairy industry is also constantly developing. Existing sterilization technologies mainly include pasteurization, microwave sterilization, and ultra-high temperature instantaneous sterilization.

[0003] A dairy ultra-high temperature (UHT) sterilizer is a device specifically designed for the ultra-high temperature instantaneous sterilization of dairy products. It can heat dairy products to a very high temperature in an extremely short time and then rapidly cool them, effectively killing microorganisms, including bacteria, spores, and other harmful microorganisms, while preserving the nutritional components and flavor of the dairy products to the greatest extent possible.

[0004] Ultra-high temperature (UHT) sterilization machines for dairy products typically utilize heat exchangers, including plate and tubular types. During sterilization, dairy products flow through the heating zone at a high velocity, indirectly heated to approximately 135-150°C by high-temperature steam or hot water, and maintained for several seconds. This combination of high temperature and short duration disrupts the physiological structure of microorganisms, causing protein denaturation and enzyme inactivation, leading to microbial death. Afterward, the product quickly passes through the cooling zone, returning to a lower temperature to prevent prolonged high temperatures from negatively impacting product quality.

[0005] Traditional ultra-high temperature sterilization machines for dairy products are prone to pipe blockage, commonly known as "pipe clogging," during long-term operation, which leads to reduced production efficiency and increased maintenance costs. Therefore, this utility model is proposed to solve the above problems. Utility Model Content

[0006] To address the shortcomings of existing technologies, this utility model provides a novel ultra-high temperature sterilization machine for dairy products, which has advantages such as good sterilization effect and is not prone to clogging. It solves the problem that traditional ultra-high temperature sterilization machines for dairy products are prone to clogging, resulting in reduced production efficiency and increased maintenance costs.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a novel ultra-high temperature sterilizer for dairy products, comprising a base, a sterilizer body disposed on top of the base, a heat preservation cover disposed above the base, and a protein holding tube disposed thereon, wherein a fixing component is disposed inside the heat preservation cover;

[0008] The fixing assembly includes a fixing frame fixedly installed on the top of the base, an adjusting seat movably connected to the top of the fixing frame, several support seats fixedly installed on the top of the base, a cover seat movably connected to the top of the support seats, a fixing cylinder movably connected to the top of the support seats, a locking rod movably connected inside the fixing cylinder, a return spring fixedly installed at the bottom of the locking rod, and a heating plate movably connected to the side of the fixing cylinder.

[0009] This application adopts the above-mentioned technical solution, which uses a fixing frame and an adjusting seat to press the heat preservation cover onto the top of the cover seat, thereby sealing and protecting the outside of the protein holding tube. The locking rod, together with the fixing cylinder, fixes the heating plate, and the heating plate maintains the temperature of the protein holding tube, thereby avoiding the problem of temperature loss affecting the subsequent sterilization efficiency when dairy products are in circulation.

[0010] Furthermore, the protein holding tube is an arc-shaped structure coiled above the base. The two ends of the protein holding tube are respectively connected to the hot and cold material heat exchange device and the high-temperature steam device of the sterilizer body. The inner side of the bend of the protein holding tube and the side of the fixed cylinder are fixedly installed by snap-fit.

[0011] The beneficial effects of adopting the above-mentioned further solution are: by setting up an arc-shaped spiral protein holding tube to extend the length of the protein holding tube, the time that dairy products spend in the protein holding tube is extended, the stability of dairy products before sterilization is improved, and the possibility of protein deformation and adhesion to the inner wall of the tube is reduced.

[0012] Furthermore, the top of the adjusting seat is provided with an adjusting plate, the adjusting seat vertically penetrates the fixing frame and is rotatably connected to the fixing frame by a thread, and the bottom of the adjusting seat is provided with a pressing pad.

[0013] The beneficial effects of adopting the above-mentioned further solution are: setting an adjustment plate to drive the adjustment seat to rotate threadedly inside the fixed frame, driving the adjustment seat and the pressing pad to rise and fall, firmly fixing the heat preservation cover to the top of the cover base, wrapping the protein retention tube, and preventing the dairy products inside the protein retention tube from losing temperature.

[0014] Furthermore, the top of the support base is provided with a threaded hole, the outer side of the bottom end of the fixing cylinder is provided with threaded patterns, and the bottom of the fixing cylinder vertically penetrates the cover base to the inside of the threaded hole of the support base and is threadedly connected to both the cover base and the support base.

[0015] The beneficial effects of adopting the above-mentioned further solution are: by setting a threaded hole at the top of the support base to fix the bottom of the fixing cylinder, the cover and the support base can be fixed simultaneously after the fixing cylinder is screwed into the threaded hole. The stability of the cover base can provide a stable support effect for the heat insulation cover, and at the same time facilitates disassembly and cleaning in the later stage.

[0016] Furthermore, the top of the cover is provided with a limiting frame for use with the heat insulation cover. The heat insulation cover is nested in the top of the cover and slidably connected to the outside of the limiting frame. The inner sidewall of the heat insulation cover is provided with a heat insulation isolation plate.

[0017] The beneficial effects of adopting the above-mentioned further solution are: setting a limiting frame to limit the inner wall of the heat insulation cover, so that the bottom of the heat insulation cover has a stable limiting and support effect, and at the same time, the heat insulation isolation plate on the inner wall of the heat insulation cover separates the protein holding tube from the outside world, thus avoiding the problem of excessively rapid temperature loss of the protein holding tube.

[0018] Furthermore, a through groove is formed inside the fixed cylinder, the locking rod is embedded inside the through groove and slidably connected to the inner side wall of the fixed cylinder, and the bottom of the reset spring is fixedly installed on the inner bottom wall of the fixed cylinder.

[0019] The beneficial effect of adopting the above-mentioned further solution is that the locking rod slides inside the fixed cylinder. When the top of the locking rod is not pressed by an external force, the locking rod will be lifted up by the support of the return spring. In this way, when the fixed cylinder initially engages and fixes the side of the heating plate, the locking rod will simultaneously limit the side of the heating plate under the support of the return spring, thereby cooperating with the fixed cylinder to fix the heating plate.

[0020] Furthermore, the side of the fixed cylinder is provided with several slots, and the two ends of the heating plate are respectively embedded in different slots and slidably connected to the inner sidewall of the slot.

[0021] The beneficial effect of adopting the above-mentioned further solution is that: the locking groove is set on the side of the fixed cylinder to lock the heating plate in a side engagement, so as to stably fix the heating plate in the gap between the protein holding tubes, heat the protein holding tubes, and avoid the problem of heat loss from the protein holding tubes.

[0022] Furthermore, the side of the locking rod is provided with a fixing wedge for fixing the heating plate in conjunction with the locking slot, and the bottom sides of the heating plate are provided with slots for fixing the wedge.

[0023] The beneficial effect of adopting the above-mentioned further solution is that the locking groove is set on the side of the locking rod to further limit the groove of the heating plate, thereby achieving a stable clamping effect on the heating plate.

[0024] Compared with the prior art, this utility model provides a novel ultra-high temperature sterilization machine for dairy products, which has the following beneficial effects:

[0025] 1. This new type of ultra-high temperature (UHT) sterilizer for dairy products designs the protein holding tube as a coil that matches the length and width of the UHT sterilizer. By lengthening the protein holding tube, the time that dairy products spend in the protein holding tube is extended from a few seconds to about one minute. This allows the fresh milk to be kept at high temperatures for a longer period of time, thus ensuring that the dairy products are more stable before entering the sterilizer. The proteins are also more stable, and at ultra-high temperatures, some proteins will not denature and adhere to the pipe, causing the inner wall of the pipe to thicken and affecting the sterilization effect.

[0026] 2. This new type of ultra-high temperature (UHT) sterilizer for dairy products uses a fixed cylinder and locking rod to fix the heating plate in the gap between the protein holding tubes, maintaining the temperature of the protein holding tubes at all times. This allows the dairy products to be kept warm while being transported through the protein holding tubes, preventing temperature fluctuations that could affect the sterilization effect. It also significantly reduces the risk of tube clogging when entering the UHT pipeline, allowing for an extension of the time interval between cleaning the sterilizer, increasing the continuous working time of the equipment, and improving the continuity and stability of production. At the same time, due to the extended pipeline, the amount of liquid dairy products to be sterilized in the pipeline increases, increasing production capacity. This solves the problem of traditional UHT sterilizers being prone to clogging, which leads to reduced production efficiency and increased maintenance costs. Attached Figure Description

[0027] Figure 1 This is a perspective view of the present utility model;

[0028] Figure 2 This is a three-dimensional view of the disassembled heat insulation cover of this utility model;

[0029] Figure 3 This is a three-dimensional cross-sectional view of the fixing cylinder of this utility model;

[0030] Figure 4 This utility model Figure 3 Enlarged view of the A-structure;

[0031] Figure 5 This is a cross-sectional view of the fixing cylinder and locking rod of this utility model.

[0032] In the diagram: 1. Base; 2. Sterilizer body; 3. Insulation cover; 4. Protein holding tube; 5. Fixing component; 51. Fixing frame; 52. Adjusting seat; 53. Support seat; 54. Cover seat; 55. Fixing cylinder; 56. Locking rod; 57. Return spring; 58. Heating plate; 59. Locking slot; 510. Fixing wedge. Detailed Implementation

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] Please see Figure 1-5 This embodiment of a novel ultra-high temperature sterilizer for dairy products includes a base 1, a sterilizer body 2 disposed on top of the base 1, a heat preservation cover 3 disposed above the base 1, a protein holding tube 4 disposed thereon, and a fixing component 5 disposed inside the heat preservation cover 3.

[0035] In this example, the fixing component 5 includes a fixing frame 51 fixedly installed on the top of the base 1, an adjusting seat 52 movably connected to the top of the fixing frame 51, several support seats 53 fixedly installed on the top of the base 1, a cover seat 54 movably connected to the top of the support seats 53, a fixing cylinder 55 movably connected to the top of the support seats 53, a locking rod 56 movably connected inside the fixing cylinder 55, a return spring 57 fixedly installed at the bottom of the locking rod 56, and a heating plate 58 movably connected to the side of the fixing cylinder 55.

[0036] By setting the fixing bracket 51 and adjusting seat 52, the heat preservation cover 3 is pressed on the top of the cover 54, thereby sealing and protecting the outside of the protein holding tube 4. The locking rod 56, together with the fixing cylinder 55, fixes the heating plate 58. The heating plate 58 maintains the temperature of the protein holding tube 4, thereby avoiding the problem of temperature loss affecting the subsequent sterilization efficiency when dairy products are in circulation.

[0037] In this example, the protein holding tube 4 is an arc-shaped structure coiled above the base 1. The two ends of the protein holding tube 4 are connected to the hot and cold material heat exchange device and the high-temperature steam device of the sterilizer body 2, respectively. The inner side of the bend of the protein holding tube 4 and the side of the fixing cylinder 55 are fixedly installed by snap-fit.

[0038] By setting up an arc-shaped spiral protein holding tube 4, the length of the protein holding tube 4 is extended, the time of dairy products in the protein holding tube 4 is extended, the stability of dairy products before sterilization is improved, and the possibility of protein deformation and adhesion to the inner wall of the tube is reduced.

[0039] In this example, the top of the adjusting seat 52 is provided with an adjusting plate, the adjusting seat 52 vertically passes through the fixing frame 51 and is rotatably connected to the fixing frame 51 by a thread, and the bottom of the adjusting seat 52 is provided with a pressing pad.

[0040] By setting an adjustment plate, the adjustment seat 52 is driven to rotate threadedly inside the fixed frame 51, which drives the adjustment seat 52 and the pressing pad to rise and fall, firmly fixing the heat preservation cover 3 to the top of the cover 54, wrapping the protein retention tube 4, and preventing the dairy products inside the protein retention tube 4 from losing temperature.

[0041] In this example, the top of the support base 53 is provided with a threaded hole, the bottom outer side of the fixing cylinder 55 is provided with threaded grooves, and the bottom of the fixing cylinder 55 vertically penetrates the cover 54 to the inside of the threaded hole of the support base 53 and is threadedly connected to both the cover 54 and the support base 53.

[0042] By setting a threaded hole at the top of the support base 53 to fix the bottom of the fixing cylinder 55, the fixing cylinder 55 can be screwed into the threaded hole to simultaneously fix the cover 54 and the support base 53. The stability of the cover 54 can provide a stable support effect for the heat insulation cover 3, and at the same time facilitate disassembly and cleaning in the later stage.

[0043] In this example, the top of the cover 54 is provided with a limiting frame for use with the heat insulation cover 3. The heat insulation cover 3 is nested in the top of the cover 54 and is slidably connected to the outside of the limiting frame. The inner side wall of the heat insulation cover 3 is provided with a heat insulation isolation plate.

[0044] By setting a limiting frame to restrict the inner wall of the heat insulation cover 3, the bottom of the heat insulation cover 3 is stably restricted and supported. At the same time, the heat insulation isolation plate on the inner wall of the heat insulation cover 3 separates the protein holding tube 4 from the outside world, thus preventing the protein holding tube 4 from losing temperature too quickly.

[0045] In this example, a through groove is provided inside the fixed cylinder 55, the locking rod 56 is embedded inside the through groove and is slidably connected to the inner side wall of the fixed cylinder 55, and the bottom of the return spring 57 is fixedly installed on the inner bottom wall of the fixed cylinder 55.

[0046] By setting the locking rod 56 to slide inside the fixing cylinder 55, when the top of the locking rod 56 is not pressed by an external force, the locking rod 56 will be lifted up by the support of the return spring 57. In this way, when the fixing cylinder 55 initially engages and fixes the side of the heating plate 58, the locking rod 56 will simultaneously limit the side of the heating plate 58 under the support of the return spring 57, thereby cooperating with the fixing cylinder 55 to fix the heating plate 58.

[0047] In this example, the side of the fixed cylinder 55 is provided with several slots 59, and the two ends of the heating plate 58 are respectively embedded in different slots 59 and slidably connected to the inner side wall of the slots 59.

[0048] By setting a locking slot 59 on the side of the fixed cylinder 55 to engage and fix the heating plate 58 on the side, the heating plate 58 is stably fixed in the gap between the protein holding tubes 4, and the protein holding tubes 4 are heated to avoid heat loss from the protein holding tubes 4.

[0049] In this example, the side of the locking rod 56 is provided with a fixing wedge 510 for fixing the heating plate 58 in conjunction with the locking slot 59, and the bottom sides of the heating plate 58 are provided with slots for use with the fixing wedge 510.

[0050] By setting a locking slot 59 on the side of the locking rod 56 to further limit the slot of the heating plate 58, a stable clamping effect is achieved on the heating plate 58.

[0051] It should be noted that the main body 2 of the sterilizer is existing technology, and its specific structure and working principle will not be described in detail in this article.

[0052] The working principle of the above embodiments is as follows:

[0053] By designing the protein holding tube 4 as a coil that matches the length and width of the ultra-high temperature sterilizer, and by lengthening the protein holding tube 4, the time that dairy products spend in the protein holding tube 4 is extended from a few seconds to about one minute. Fresh milk is kept at high temperature for a longer time, thus ensuring that dairy products are more stable before entering the sterilizer, and that the proteins are more stable. At ultra-high temperature, some proteins will not denature and adhere to the pipe, causing the inner wall of the pipe to thicken and affecting the sterilization effect.

[0054] In addition, by setting a fixed cylinder 55 and a locking rod 56 to fix the heating plate 58 in the gap between the protein holding tubes 4, the temperature of the protein holding tubes 4 is maintained at all times. This allows the dairy products to be kept warm while being transported in the protein holding tubes 4, preventing temperature changes in the protein holding tubes 4 from affecting the sterilization effect. This greatly reduces the risk of tube clogging when entering the ultra-high temperature pipeline, and allows the time interval for cleaning the sterilizer to be extended, increasing the continuous working time of the equipment and improving the continuity and stability of production. At the same time, due to the increased pipeline length, the amount of liquid dairy products to be sterilized in the pipeline increases, increasing the production capacity and solving the problem that traditional ultra-high temperature dairy sterilizers are prone to clogging, leading to reduced production efficiency and increased maintenance costs.

[0055] All electrical components mentioned in the text are electrically connected to the main controller and power supply. The main controller can be a conventional and known device such as a computer, and the existing publicly available power connection technology will not be elaborated in the text.

Claims

1. A novel ultra-high temperature sterilizer for dairy products, comprising a base (1), a sterilizer body (2) disposed on top of the base (1), a heat preservation cover (3) disposed above the base (1), and a protein holding tube (4), characterized in that: The heat insulation cover (3) is provided with a fixing component (5) inside; The fixing component (5) includes a fixing frame (51) fixedly installed on the top of the base (1), an adjusting seat (52) movably connected to the top of the fixing frame (51), several support seats (53) fixedly installed on the top of the base (1), a cover seat (54) movably connected to the top of the support seat (53), a fixing cylinder (55) movably connected to the top of the support seat (53), a locking rod (56) movably connected inside the fixing cylinder (55), a return spring (57) fixedly installed at the bottom of the locking rod (56), and a heating plate (58) movably connected to the side of the fixing cylinder (55).

2. The novel ultra-high temperature sterilization machine for dairy products according to claim 1, characterized in that: The protein holding tube (4) is an arc-shaped structure coiled above the base (1). The two ends of the protein holding tube (4) are connected to the hot and cold material heat exchange device and the high-temperature steam device of the sterilizer body (2) respectively. The inner side of the bend of the protein holding tube (4) and the side of the fixing cylinder (55) are fixedly installed by buckles.

3. The novel ultra-high temperature sterilization machine for dairy products according to claim 1, characterized in that: The top of the adjusting seat (52) is provided with an adjusting plate. The adjusting seat (52) vertically passes through the fixing frame (51) and is connected to the fixing frame (51) by a threaded rotation. The bottom of the adjusting seat (52) is provided with a pressing pad.

4. The novel ultra-high temperature sterilization machine for dairy products according to claim 1, characterized in that: The top of the support base (53) is provided with a threaded hole, and the bottom of the fixing cylinder (55) is provided with threaded patterns. The bottom of the fixing cylinder (55) vertically penetrates the cover (54) to the inside of the threaded hole of the support base (53) and is threadedly connected to both the cover (54) and the support base (53).

5. A novel ultra-high temperature sterilization machine for dairy products according to claim 1, characterized in that: The top of the cover (54) is provided with a limiting frame that is used in conjunction with the heat insulation cover (3). The heat insulation cover (3) is nested on the top of the cover (54) and is slidably connected to the outside of the limiting frame. The inner side wall of the heat insulation cover (3) is provided with a heat insulation isolation plate.

6. A novel ultra-high temperature sterilization machine for dairy products according to claim 1, characterized in that: The fixed cylinder (55) has a through groove inside, the locking rod (56) is embedded in the through groove and is slidably connected to the inner side wall of the fixed cylinder (55), and the bottom of the reset spring (57) is fixedly installed on the inner bottom wall of the fixed cylinder (55).

7. A novel ultra-high temperature sterilization machine for dairy products according to claim 1, characterized in that: The fixed cylinder (55) has several slots (59) on its side. The two ends of the heating plate (58) are respectively embedded in different slots (59) and are slidably connected to the inner side wall of the slots (59).

8. A novel ultra-high temperature sterilization machine for dairy products according to claim 1, characterized in that: The locking rod (56) has a fixing wedge (510) on its side for use with the locking slot (59) to fix the heating plate (58). The bottom sides of the heating plate (58) are provided with slots for use with the fixing wedge (510).