Vacuum low-temperature concentration equipment for fruit slices

Abstract

The utility model relates to the technical field of food processing equipment, in particular to fruit slice vacuum low-temperature concentration equipment which comprises an evaporation cavity shell, a vacuum steam exhaust pipe is fixedly mounted at the top of the evaporation cavity shell, and a concentrated pulp liquid discharge pipe is fixedly mounted at the bottom of the evaporation cavity shell. A low-temperature concentration assembly is arranged on one side of the evaporation cavity shell; through the arrangement of the first liquid inlet pipe, the booster pump and the second liquid inlet pipe, primary pulp can be stably conveyed to the heating cavity from the primary pulp tank, the booster pump can increase the liquid inlet pressure, it is ensured that primary pulp is supplied smoothly and efficiently, and stable raw material input is provided for the subsequent concentration process; the heating cavity is formed by a plurality of independent cuboid containers in a circumferential array mode and communicated through the circulating pipe, the structure can enable fruit slice raw pulp to be evenly heated in the heating cavity, heat exchange efficiency is improved, consistency of the concentration effect is guaranteed, meanwhile, the raw pulp can circulate among the containers through the circulating pipe, and local overheating or uneven concentration is avoided.

Description

Technical Field

[0001] This application relates to the field of food processing equipment technology, and in particular to a vacuum low-temperature concentration device for fruit slices. Background Technology

[0002] In the food processing industry, fruit slice concentration is a key process. Its purpose is to remove moisture from fruit slices and increase the concentration of fruit components to facilitate storage, transportation, and further processing. Traditional fruit slice concentration methods mainly include atmospheric pressure heating concentration and ordinary vacuum concentration.

[0003] Atmospheric pressure heating concentration involves heating fruit slices at normal atmospheric pressure to evaporate moisture, thus achieving concentration. However, this method has significant drawbacks. Due to the high heating temperature, typically at a high boiling point, a large amount of heat-sensitive nutrients in the fruit slices, such as vitamin C, various B vitamins, antioxidants, and flavor compounds, are destroyed. While conventional vacuum concentration lowers the evaporation temperature, it still has shortcomings in equipment structure and concentration efficiency. Its relatively simple equipment structure cannot guarantee uniform heating of the fruit slices during concentration, leading to over-concentration in some areas and under-concentration in others, resulting in poor product quality stability. Furthermore, it lacks precision in drainage and steam treatment, easily causing leakage of concentrated liquid and poor steam discharge, affecting production efficiency and the workshop environment.

[0004] Regarding the aforementioned technologies, the inventors have discovered the following defects: Some existing devices on the market lack components such as booster pumps. The pulp relies on gravity or simple pumping to enter the heating stage. The transportation process is easily affected by factors such as pipeline resistance and liquid level changes, resulting in unstable raw material supply, which in turn affects the concentration efficiency and continuous operation of the equipment. Most existing devices have simple heating structures and do not adopt a circular array and circulating container design. The pulp of fruit slices is heated unevenly during heating, which easily leads to local overheating. This not only damages the nutritional components and flavor of the fruit slices, but also leads to inconsistent concentration and inconsistent product quality. Utility Model Content

[0005] In view of the shortcomings of the prior art and in order to solve the problems mentioned in the background art, this application provides a vacuum low-temperature concentration device for fruit slices.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vacuum low-temperature concentration device for fruit slices, comprising an evaporation chamber shell, a vacuum exhaust pipe fixedly installed on the top of the evaporation chamber shell, a concentrated slurry drain pipe fixedly installed on the bottom of the evaporation chamber shell, and a low-temperature concentration component provided on one side of the evaporation chamber shell;

[0007] A low-temperature concentration assembly includes a first inlet pipe, a booster pump, a second inlet pipe, a heating chamber, a positioning bracket, and an evaporation tank. One side of the first inlet pipe is connected to the raw slurry tank, and the other side is connected to the booster pump. One side of the booster pump is connected to the second inlet pipe, and one side of the second inlet pipe is connected to the heating chamber. A positioning bracket is fixedly installed on the top of the heating chamber, and an evaporation tank is formed through the top of the positioning bracket. An inlet hole is formed on one side of the heating chamber, communicating with the second inlet pipe. A circulation pipe is connected to one side of the heating chamber. The circulation pipe connects all parts of the heating chamber, allowing the slurry to circulate within the heating chamber, ensuring uniform heating and concentration.

[0008] Optionally, the low-temperature concentration assembly further includes a first liquid outlet, a sealing ring, a second liquid outlet, a switch handle, a sealing ring, and an annular slide rail. The first liquid outlet is located at the bottom of the heating chamber. A sealing ring is movably mounted on the bottom of each first liquid outlet. A second liquid outlet is penetrated through the bottom of each sealing ring. A switch handle is fixedly connected to one side of the sealing ring, and a sealing ring is fixedly connected to one side of the switch handle. An annular slide rail is movably mounted on the bottom of the sealing ring. The annular slide rail is fixedly mounted on the top of a partition plate between the concentrated slurry drain pipe and the evaporation chamber shell, and the partition plate is equipped with a one-way valve. The annular slide rail supports the sealing ring and allows it to slide along the track, facilitating the opening and closing of the sealing ring.

[0009] Optionally, the sealing ring is movably installed inside the evaporator housing, and the sealing ring completely covers the groove opened on the side of the evaporator housing, and the switch handle is movably installed inside the groove opened on the side of the evaporator housing.

[0010] Optionally, the heating cavity is composed of a circumferential array of several individual cuboid containers, and two adjacent cuboid containers are connected by a circulation pipe. The heating cavity is fixedly installed on the inner wall of the evaporation chamber shell.

[0011] Optionally, a partition is provided between the outer shell of the evaporation chamber and the concentrated slurry drain pipe, and the partition and the outer shell of the evaporation chamber form a semi-enclosed heating chamber. The interior of the heating chamber is filled with heat-conducting oil, and the liquid level of the heat-conducting oil inside the outer shell of the evaporation chamber does not exceed the height of the heating chamber.

[0012] Optionally, the positioning bracket is fixedly installed inside the outer shell of the evaporation chamber, and the positioning bracket is located directly below the vacuum exhaust pipe. The vacuum exhaust pipe is connected to the gas-liquid separation device, and the concentrated slurry drain pipe is connected to the concentrated slurry collection cylinder.

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

[0014] 1. In use, this utility model, through the setting of the first liquid inlet pipe, the booster pump, and the second liquid inlet pipe, can stably transport the pulp from the pulp tank to the heating chamber. The booster pump can increase the liquid inlet pressure, ensuring smooth and efficient pulp supply, and providing a stable raw material input for the subsequent concentration process. The heating chamber is composed of several individual cuboid containers arranged in a circumferential array and connected by a circulation pipe. This structure allows the pulp to be heated evenly in the heating chamber, improving heat exchange efficiency and ensuring the consistency of the concentration effect. At the same time, the circulation pipe allows the pulp to circulate between the containers, avoiding local overheating or uneven concentration. The positioning bracket positions the evaporation tank directly below the vacuum exhaust pipe, which is conducive to the rapid discharge of steam generated by evaporation through the vacuum exhaust pipe, avoiding the accumulation of steam in the equipment, which would affect the concentration effect. It also ensures that the entire concentration process is carried out in a relatively stable pressure environment.

[0015] 2. In use, this utility model, through the design of the first liquid outlet, sealing ring, second liquid outlet, and switch handle, can conveniently control the discharge of concentrated fruit slice slurry in the heating chamber. By operating the switch handle, the sealing ring can be moved to align or misalign the first and second liquid outlets, achieving precise control of the liquid discharge. The annular slide rail and sealing ring at the bottom of the sealing ring can ensure the smooth movement of the sealing ring and the sealing of the evaporation chamber shell, preventing slurry leakage and heat loss during the concentration process, maintaining stable pressure and temperature inside the equipment, and thus improving concentration efficiency and product quality. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of the device in the embodiments of this application;

[0017] Figure 2 This is a schematic diagram of a partial structure of the device in an embodiment of this application;

[0018] Figure 3 This is a partial structural diagram of the low-temperature concentration component in an embodiment of this application;

[0019] Figure 4 This is a schematic diagram of a partial structure installation of the low-temperature concentration component in an embodiment of this application;

[0020] Figure 5 This is a schematic diagram of the structure of the low-temperature concentration component parts in the embodiments of this application;

[0021] Reference numerals: 1. Evaporation chamber outer shell; 2. Vacuum exhaust pipe; 3. Concentrated slurry drain pipe; 4. Low-temperature concentration component; 401. First liquid inlet pipe; 402. Booster pump; 403. Second liquid inlet pipe; 404. Heating chamber; 405. Positioning bracket; 406. Evaporation tank; 407. Liquid inlet hole; 408. Circulation pipe; 409. First liquid outlet hole; 410. Sealing ring; 411. Second liquid outlet hole; 412. Switch handle; 413. Sealing ring; 414. Annular slide rail. Detailed Implementation

[0022] The following is in conjunction with the appendix Figure 1-4 This application will be described in further detail.

[0023] This application discloses a vacuum low-temperature concentration device for fruit slices.

[0024] Please see Figure 1 A vacuum low-temperature concentration device for fruit slices includes an evaporation chamber shell 1, a vacuum exhaust pipe 2 fixedly installed on the top of the evaporation chamber shell 1, a concentrated slurry drain pipe 3 fixedly installed on the bottom of the evaporation chamber shell 1, and a low-temperature concentration component 4 provided on one side of the evaporation chamber shell 1.

[0025] Please see Figures 2 to 4 The low-temperature concentration component 4 includes a first inlet pipe 401, a booster pump 402, a second inlet pipe 403, a heating chamber 404, a positioning bracket 405, and an evaporation tank 406. One side of the first inlet pipe 401 is connected to the raw slurry tank, and the other side of the first inlet pipe 401 is connected to the booster pump 402. One side of the booster pump 402 is connected to the second inlet pipe 403, and one side of the second inlet pipe 403 is connected to the heating chamber 404. The positioning bracket 405 is fixedly installed on the top of the heating chamber 404, and the evaporation tank 406 is opened through the top of the positioning bracket 405. One side of the heating chamber 404 has an inlet hole 407, which is connected to the second inlet pipe 403. One side of the heating chamber 404 is connected to a circulation pipe 408.

[0026] The low-temperature concentration assembly 4 also includes a first liquid outlet 409, a sealing ring 410, a second liquid outlet 411, a switch handle 412, a sealing ring 413, and an annular slide rail 414. The first liquid outlet 409 is located at the bottom of the heating chamber 404. The sealing ring 410 is movably installed at the bottom of the first liquid outlet 409. The second liquid outlet 411 is opened through the bottom of the sealing ring 410. The switch handle 412 is fixedly connected to one side of the sealing ring 410. The sealing ring 413 is fixedly connected to one side of the switch handle 412. The annular slide rail 414 is movably installed at the bottom of the sealing ring 410. The annular slide rail 414 is fixedly installed on the top of the partition plate between the concentrated slurry drain pipe 3 and the evaporation chamber shell 1. The partition plate is equipped with a one-way valve.

[0027] The sealing ring 413 is movably installed inside the evaporator housing 1, and the sealing ring 413 completely covers the groove opened on the side of the evaporator housing 1. The switch handle 412 is movably installed inside the groove opened on the side of the evaporator housing 1.

[0028] The heating chamber 404 is composed of a circular array of several individual cuboid containers, and two adjacent cuboid containers are connected by a circulation pipe 408. The heating chamber 404 is fixedly installed on the inner wall of the evaporation chamber shell 1.

[0029] A partition is provided between the outer shell of the evaporation chamber 1 and the concentrated slurry drain pipe 3, and the partition and the outer shell of the evaporation chamber 1 form a semi-enclosed heating chamber. The interior of the heating chamber is filled with heat transfer oil, and the liquid level of the heat transfer oil inside the outer shell of the evaporation chamber 1 does not exceed the height of the heating chamber 404.

[0030] The positioning bracket 405 is fixedly installed inside the outer shell 1 of the evaporation chamber. The positioning bracket 405 is located directly below the vacuum exhaust pipe 2. The vacuum exhaust pipe 2 is connected to the gas-liquid separation device, and the concentrated slurry drain pipe 3 is connected to the concentrated slurry collection cylinder.

[0031] Further explanation is needed:

[0032] The initial part of the low-temperature concentration component 4 is responsible for the delivery of raw materials. One end of the first liquid inlet pipe 401 is connected to the pulp tank to introduce the fruit pulp into the equipment. Subsequently, the booster pump 402 plays a key role, which increases the pressure of the pulp. Through the second liquid inlet pipe 403, the pulp is stably and efficiently delivered to the heating chamber 404. This design ensures that the pulp can continuously and in sufficient quantity enter the subsequent concentration stage, providing a stable material basis for the entire concentration process. This is an important prerequisite for ensuring the continuous operation of the equipment.

[0033] The heating chamber 404 is the core component of the low-temperature concentration assembly 4 for achieving low-temperature concentration of fruit slices. It consists of a circumferential array of multiple individual cuboid containers, which are connected by a circulation pipe 408. When the raw pulp enters the heating chamber 404, it circulates within each container and is heated evenly. The evaporation tank 406 is located on top of the positioning bracket 405, which is fixed inside the outer shell 1 of the evaporation chamber and located directly below the vacuum exhaust pipe 2. During the heating process, the water in the raw pulp evaporates to form steam, which is discharged through the vacuum exhaust pipe 2, thereby achieving low-temperature concentration of the fruit slices and ensuring the retention of nutrients and flavor substances in the fruit slices during the concentration process.

[0034] After concentration, the drain control component comes into play. The bottom of the heating chamber 404 is provided with a first outlet hole 409, and a sealing ring 410 is installed at its bottom. The second outlet hole 411 on the sealing ring 410 is connected to the switch handle 412. By operating the switch handle 412, the position of the sealing ring 410 can be adjusted so that the first outlet hole 409 and the second outlet hole 411 are aligned or misaligned, thereby controlling the discharge of the concentrated slurry. The annular slide rail 414 ensures the smooth movement of the sealing ring 410, and the sealing ring 413 ensures the sealing of the equipment and prevents the concentrated slurry from leaking, so that the concentrated fruit slice slurry can be discharged smoothly and accurately into the concentrated slurry drain pipe 3 and enter the subsequent collection stage.

[0035] The working principle of the above embodiments is as follows:

[0036] First, one end of the first inlet pipe 401 is connected to the pulp tank, introducing the fruit pulp into the equipment. Then, the booster pump 402 starts working, increasing the pulp pressure and allowing the pulp to flow steadily and efficiently into the heating chamber 404 through the second inlet pipe 403, providing a stable raw material for the subsequent concentration stage.

[0037] Secondly, the heating chamber 404 is composed of a circumferential array of multiple individual cuboid containers. After the raw pulp enters, it circulates between the containers through the circulation pipe 408, and is heated evenly to prepare for water evaporation, while avoiding local overheating that could lead to the loss of nutrients and flavor substances from the fruit slices.

[0038] Next, during the continuous heating process, the water in the pulp gradually vaporizes into steam. The evaporation tank 406 is set on top of the positioning bracket 405. The positioning bracket 405 is fixed inside the outer shell 1 of the evaporation chamber and located directly below the vacuum exhaust pipe 2. The generated steam is quickly discharged through the vacuum exhaust pipe 2, realizing the low-temperature concentration of the fruit slices and preserving the nutrition and flavor of the fruit slices to the greatest extent.

[0039] Next, after concentration is completed, the first liquid outlet 409 at the bottom of the heating chamber 404 begins to function. The sealing ring 410 is installed at the bottom of the first liquid outlet 409, and the second liquid outlet 411 on it is connected to the switch handle 412. The operator adjusts the position of the sealing ring 410 by operating the switch handle 412, so that the first liquid outlet 409 and the second liquid outlet 411 are aligned or misaligned, so as to precisely control the discharge of the concentrated slurry. The annular slide rail 414 ensures that the sealing ring 410 moves smoothly, and the sealing ring 413 ensures the equipment's airtightness and prevents the concentrated slurry from leaking.

[0040] Finally, the concentrated fruit slice slurry discharged through the drainage control component flows through the concentrated slurry drainage pipe 3 into the concentrated slurry collection cylinder, completing the entire process of vacuum low-temperature concentration of fruit slices and obtaining the final concentrated fruit slice product.

[0041] The above are all 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 vacuum low-temperature concentration device for fruit slices, comprising an evaporation chamber shell (1), characterized in that: A vacuum exhaust pipe (2) is fixedly installed on the top of the evaporation chamber shell (1), a concentrated slurry drain pipe (3) is fixedly installed on the bottom of the evaporation chamber shell (1), and a low temperature concentration component (4) is provided on one side of the evaporation chamber shell (1). The low-temperature concentration assembly (4) includes a first inlet pipe (401), a booster pump (402), a second inlet pipe (403), a heating chamber (404), a positioning bracket (405), and an evaporation tank (406). One side of the first inlet pipe (401) is connected to the raw slurry tank, and the other side of the first inlet pipe (401) is connected to the booster pump (402). One side of the booster pump (402) is connected to the second inlet pipe (403). A heating chamber (404) is connected to one side of the second liquid inlet pipe (403). A positioning bracket (405) is fixedly installed on the top of the heating chamber (404). An evaporation tank (406) is opened through the top of the positioning bracket (405). A liquid inlet hole (407) is opened on one side of the heating chamber (404). The liquid inlet hole (407) is connected to the second liquid inlet pipe (403). A circulation pipe (408) is connected to one side of the heating chamber (404).

2. The vacuum low-temperature concentration equipment for fruit slices according to claim 1, characterized in that: The low-temperature concentration component (4) further includes a first liquid outlet (409), a sealing ring (410), a second liquid outlet (411), a switch handle (412), a sealing ring (413), and an annular slide rail (414). The first liquid outlet (409) is opened at the bottom of the heating chamber (404). The sealing ring (410) is movably installed at the bottom of the first liquid outlet (409). The second liquid outlet (411) is opened through the bottom of the sealing ring (410). The switch handle (412) is fixedly connected to one side of the sealing ring (410). The sealing ring (413) is fixedly connected to one side of the switch handle (412). The annular slide rail (414) is movably installed at the bottom of the sealing ring (410). The annular slide rail (414) is fixedly installed on the top of the partition plate between the concentrated slurry drain pipe (3) and the evaporation chamber shell (1). The partition plate is equipped with a one-way valve.

3. The vacuum low-temperature concentration equipment for fruit slices according to claim 2, characterized in that: The sealing ring (413) is movably installed inside the evaporator housing (1), and the sealing ring (413) completely covers the groove opened on the side of the evaporator housing (1). The switch handle (412) is movably installed inside the groove opened on the side of the evaporator housing (1).

4. The vacuum low-temperature concentration equipment for fruit slices according to claim 1, characterized in that: The heating cavity (404) is composed of a circular array of several individual cuboid containers, and two adjacent cuboid containers are connected by a circulation pipe (408). The heating cavity (404) is fixedly installed on the inner wall of the evaporation cavity shell (1).

5. The vacuum low-temperature concentration equipment for fruit slices according to claim 1, characterized in that: A partition is provided between the outer shell (1) of the evaporation chamber and the concentrated slurry drain pipe (3), and the partition and the outer shell (1) of the evaporation chamber form a semi-closed heating chamber. The heating chamber is filled with heat-conducting oil, and the liquid level of the heat-conducting oil inside the outer shell (1) of the evaporation chamber does not exceed the height of the heating chamber (404).

6. The vacuum low-temperature concentration equipment for fruit slices according to claim 1, characterized in that: The positioning bracket (405) is fixedly installed inside the outer shell (1) of the evaporation chamber. The positioning bracket (405) is located directly below the vacuum exhaust pipe (2). The vacuum exhaust pipe (2) is connected to the gas-liquid separation device. The concentrated slurry drain pipe (3) is connected to the concentrated slurry collection cylinder.

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