Low-temperature low-pressure concentration pan

Abstract

The utility model discloses a low temperature low pressure concentration pot belongs to concentration equipment technical field. Including base, the base is connected with the pot body subassembly through the pivot between, the pot body subassembly top is provided with the pot cover, and the base side wall is provided with the support frame, and the support frame top is provided with the adjusting assembly for the auxiliary pot cover opening and closing, and the pot cover top is provided with the joint with the inside intercommunication of pot body subassembly, and the joint is connected with the vacuum pump for the vacuumization to the inside of pot body subassembly through the connecting pipeline, and the support frame outer wall is connected with the control cabinet through the connecting plate, the utility model discloses through the simulation plateau low air pressure environment, accelerates the evaporation of moisture, and the concentration time is greatly shortened, simultaneously, and the oil bath heating design of electric heating rod cooperation sealed space guarantees the even heating, and the production efficiency is further promoted, satisfies the demand of large -scale production, and the equipment adopts the thickening pot body, the sandwich pot oil bath heating, the vacuum pump and the relay linkage control etc.

Description

Technical Field

[0001] This utility model relates to the field of concentration equipment technology, and in particular to a low-temperature, low-pressure concentration pot. Background Technology

[0002] In the food processing industry, especially in the production of fruit pastes and juices, juice concentration is a crucial step. Its purpose is to increase the juice concentration by removing water while preserving the flavor and nutrients of the raw materials. However, traditional methods of juice boiling and concentration face significant technical bottlenecks:

[0003] During the boiling process of fruit juice, as water evaporates, the concentration gradually increases, and the boiling point also rises, causing the boiling temperature to continue to rise. When the temperature exceeds 110℃, the fructose in the juice will undergo a thermal decomposition reaction, specifically by dehydration to produce intermediate products such as hydroxymethylfurfural. These substances not only have a slightly bitter and caramel flavor, but also cannot be converted into sugar, ultimately resulting in a prominent sour taste in the product, which seriously affects the flavor.

[0004] To address these issues, the industry has attempted to adopt low-temperature cooking methods, such as using an 80°C jacketed kettle and increasing the heating area through tilting and stirring. While this method can produce low-temperature fruit paste within 6 hours, the yield is extremely low and cannot meet the needs of industrial production. Existing equipment capable of large-scale low-temperature concentration requires complex vacuum systems and thickened kettles to withstand pressure, resulting in high costs, large footprint, and high operational difficulty. This makes it too expensive for small entrepreneurs or SMEs with limited funds, hindering its widespread application.

[0005] Therefore, how to reduce the thermal decomposition of fructose during fruit juice boiling, control the acidity of the product, and reduce equipment costs and operational difficulty while ensuring industrial production efficiency has become an urgent technical problem to be solved in the current fruit juice concentration and processing field. Utility Model Content

[0006] The purpose of this utility model is to solve the problems in the prior art by proposing a low-temperature, low-pressure concentration pot.

[0007] To achieve the above objectives, the present invention adopts the following technical solution:

[0008] A low-temperature, low-pressure concentration pot includes a base, with a pot body assembly connected to the base via a pivot. A pot lid is provided on the top of the pot body assembly, and a support frame is provided on the side wall of the base. An adjustment component for assisting the opening and closing of the pot lid is provided on the top of the support frame. A connector communicating with the interior of the pot body assembly is provided on the top of the pot lid. The connector is connected to a vacuum pump for evacuating the interior of the pot body assembly via a connecting pipe. A control cabinet is connected to the outer wall of the support frame via a connecting plate.

[0009] As a preferred technical solution of this application, the pot body assembly includes an outer pot body and an inner pot body fixedly connected to a rotating shaft, and a sealed space is formed between the outer pot body and the inner pot body, and an electric heating rod is provided inside the sealed space.

[0010] As a preferred technical solution of this application, one end of the rotating shaft passing through the base is connected to a drive assembly for driving the pot body assembly to rotate. The drive assembly includes a worm gear fixedly connected to the outer wall of the rotating shaft and a worm meshing with the worm gear. The worm is connected to the base through a mounting seat, and one end of the worm passes through the mounting seat and is connected to a handwheel.

[0011] As a preferred technical solution of this application, a pressure gauge for detecting the internal air pressure of the inner pot is provided on the top of the pot lid, and the pot lid and the inner pot are fixed together by a locking fastener.

[0012] As a preferred technical solution of this application, the adjustment component includes a support column disposed on the top of the support frame, an installation plate rotatably disposed on the outer wall of the support column, and a lifting component disposed on the installation plate and connected to the pot lid for driving the pot lid to move up and down to achieve opening and closing.

[0013] As a preferred technical solution of this application, the lifting assembly includes a bushing rotatably mounted on a mounting plate via a bearing and a screw threadedly connected to the bushing, wherein the bottom of the screw is fixedly connected to the top of the pot lid, and a handle is provided on the outer wall of the bushing.

[0014] As a preferred technical solution of this application, the top of the pot lid is provided with a limiting rod for limiting the lifting and lowering of the pot lid, and the limiting rod cooperates with the mounting plate.

[0015] As a preferred technical solution of this application, the control cabinet is also equipped with a pressure regulator, which is connected to the inside of the inner pot and electrically connected to the vacuum pump via a relay.

[0016] Compared with the prior art, this utility model provides a low-temperature, low-pressure concentration pot, which has the following beneficial effects:

[0017] 1. This low-temperature, low-pressure concentration pot uses a vacuum pump to evacuate the interior of the pot components to a low-pressure state, enabling fruit juice to be concentrated through boiling at a lower temperature, thus avoiding the problem of fructose thermal decomposition caused by traditional high-temperature boiling. This design reduces the formation of bitter and sour substances such as hydroxymethylfurfural, significantly reducing the acidity produced during fruit juice boiling, resulting in a milder product flavor and expanding the application possibilities of fruit paste in beverage formulation and other scenarios;

[0018] 2. Compared with the traditional 80℃ jacketed kettle with inclined stirring, this low-temperature and low-pressure concentration pot accelerates water evaporation and significantly shortens the concentration time by simulating the low-pressure environment of a plateau. At the same time, the electric heating rod combined with the sealed space oil bath heating design ensures uniform heating, further improving production efficiency and meeting the needs of large-scale production.

[0019] 3. This low-temperature, low-pressure concentration pot features a simplified design with a thickened pot body, jacketed pot oil bath heating, and vacuum pump and relay linkage control, eliminating the need for a complex vacuum system and significantly reducing manufacturing costs.

[0020] 4. This low-temperature, low-pressure concentration pot has a control cabinet that integrates a pressure regulator and a relay, which can automatically control the start and stop of the vacuum pump to maintain a stable pressure inside the pot. At the same time, the relay connects to the heating rod to achieve automatic regulation of the temperature of the heat transfer oil, reducing the difficulty of manual operation, reducing the reliance on professional skills, and making it easy to get started quickly. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the structure of this utility model;

[0022] Figure 2 This is the front view of the present invention;

[0023] Figure 3 This is a partial cross-sectional view of the present invention.

[0024] Figure 4 This is a partial structural diagram of the present invention.

[0025] In the picture:

[0026] 100. Base; 101. Rotating shaft; 102. Support frame; 200. Pot body assembly; 201. Outer pot body; 202. Inner pot body; 203. Sealed space; 204. Electric heating rod; 205. Drive assembly; 206. Worm gear; 207. Worm; 208. Mounting base; 209. Handwheel; 300. Pot lid; 301. Pressure gauge; 302. Locking fastener; 303. Limiting rod; 400. Adjustment assembly; 401. Support column; 402. Mounting plate; 403. Lifting assembly; 404. Bushing; 405. Screw; 406. Handle; 500. Connecting pipe; 501. Vacuum pump; 600. Control cabinet; 601. Pressure regulator. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model. Example

[0028] Reference Figure 1-4 A low-temperature, low-pressure concentration pot includes a base 100, with a pot body assembly 200 connected between the bases 100 via a pivot 101. A pot lid 300 is mounted on the top of the pot body assembly 200. A support frame 102 is mounted on the side wall of the base 100, and an adjustment component 400 for assisting in opening and closing the pot lid 300 is mounted on the top of the support frame 102. A connector communicating with the interior of the pot body assembly 200 is mounted on the top of the pot lid 300. The connector is connected via a connecting pipe 500 to a vacuum pump 501 for evacuating the interior of the pot body assembly 200. A control cabinet is connected to the outer wall of the support frame 102 via a connecting plate. Specifically, the adjustable component 400 allows for easy movement of the pot lid 300's height and position, facilitating the loading and unloading of materials into the pot assembly 200. The vacuum pump 501, in conjunction with the adjustable component 400, creates a vacuum inside the pot assembly 200, bringing it to a low-pressure state. This allows for juice boiling and concentration at a lower temperature, avoiding the fructose thermal decomposition problem caused by traditional high-temperature cooking. The control cabinet 600 integrates a pressure regulator 601 and a relay, automatically controlling the vacuum pump 501 to maintain stable pressure inside the pot.

[0029] The pot assembly 200 includes an outer pot body 201 fixedly connected to the rotating shaft 101 and an inner pot body 202. A sealed space 203 is formed between the outer pot body 201 and the inner pot body 202. An electric heating rod 204 is installed inside the sealed space 203. When the electric heating rod 204 is activated, the heat-conducting oil in the sealed space 203 is heated. The heat is transferred to the material through the inner pot body 202, causing the material to boil and evaporate at low temperature and low pressure. It should be noted that the outer pot body 201 is provided with an exhaust port, so that the hot air generated when the oil is heated by the heating rod can be discharged. This is a mature existing technology and will not be described in detail here.

[0030] One end of the rotating shaft 101, which passes through the base 100, is connected to a drive assembly 205 for rotating the pot assembly 200. The drive assembly 205 includes a worm gear 206 fixedly connected to the outer wall of the rotating shaft 101 and a worm 207 meshing with the worm gear 206. The worm 207 is connected to the base 100 through a mounting seat 208, and one end of the worm 207 passes through the mounting seat 208 and is connected to a handwheel 209. Rotating the handwheel 209 drives the worm gear 206 and the rotating shaft 101 through the worm 207, causing the pot assembly 200 to tilt at a certain angle, so as to facilitate the loading and unloading operations inside the pot assembly 200.

[0031] The lid 300 is equipped with a pressure gauge 301 on its top for detecting the internal air pressure of the inner pot 202. The lid 300 and the inner pot 202 are fixed together by a locking fastener 302. The locking fastener 302 allows the lid 300 to be easily lowered and sealed to the inner pot 202. The lid 300 is also equipped with a pressure relief valve on its top that communicates with the inside of the inner pot 202 for pressure relief operation.

[0032] The adjustment assembly 400 includes a support column 401 disposed on the top of the support frame 102, a mounting plate 402 rotatably disposed on the outer wall of the support column 401, and a lifting assembly 403 disposed on the mounting plate 402 and connected to the pot lid 300 for driving the pot lid 300 to move up and down to achieve opening and closing.

[0033] The lifting assembly 403 includes a bushing 404 rotatably mounted on the mounting plate 402 via a bearing and a screw 405 threadedly connected to the bushing 404. The bottom of the screw 405 is fixedly connected to the top of the pot lid 300, and a handle 406 is provided on the outer wall of the bushing 404.

[0034] The top of the pot lid 300 is provided with a limiting rod 303 for limiting the lifting and lowering of the pot lid 300. The limiting rod 303 cooperates with the mounting plate 402. Specifically, in use, rotating the handle 406 of the lifting assembly 403 drives the bushing 404 to rotate, causing the screw 405 threaded to it to move upward. Through the cooperation of the limiting rod 303 and the mounting plate 402, the screw 405 is prevented from rotating during the upward movement, thus preventing the pot lid 300 from being unable to rise. Subsequently, the pot lid 300 is driven to rise with the screw 405, pushing the pot lid 300 along the support column 401 to rotate the mounting plate 402, moving the pot lid 300 to the side of the inner pot body 202, exposing the feeding port, which facilitates the feeding operation.

[0035] The control cabinet 600 is also equipped with a pressure regulator 601, which is connected to the inside of the inner pot 202 and electrically connected to the vacuum pump 501 via a relay. When the vacuum pump 501 is turned on, a vacuum is drawn into the pot through the connecting pipe 500. The pressure gauge 301 on the top of the pot lid 300 is observed. When the set vacuum level is reached, the pressure regulator 601 automatically stops the vacuum pump 501 via the relay. If the vacuum level is lower than the set value, the vacuum pump 501 automatically restarts to maintain a stable negative pressure inside the pot. It should be noted that the control cabinet 600 can be a mature existing PLC control cabinet. Its cooperation with the pressure regulator 601 and the control of the start and stop of the vacuum pump 501 via the relay are all existing mature technologies. Therefore, it will not be described in detail in this application.

[0036] Specifically, when using this low-temperature, low-pressure concentrator: open the lid and loosen the locking piece 302 between the lid 300 and the inner pot body 202, operate the adjustment component 400, rotate the handle 406 of the lifting component 403, drive the bushing 404 to rotate, so that the screw 405 connected to it by threads moves upward, the lid 300 rises with the screw 405, rotate the mounting plate 402 around the support column 401, and move the lid 300 to the side of the inner pot body 202, exposing the feeding port;

[0037] Pour the juice to be concentrated into the inner pot 202, ensuring the amount of material does not exceed 70% of the volume of the inner pot 202, leaving space for evaporation. Rotate the mounting plate 402 in the reverse direction to align the lid 300 with the opening of the inner pot 202. Rotate the handle 406 in the reverse direction to lower the lid 300 using the screw 405 until it is in contact with the sealing surface of the inner pot 202. Tighten the locking fastener 302 to ensure a complete seal between the lid 300 and the inner pot 202.

[0038] The operating parameters are set on the control cabinet 600: the target vacuum level is set by the pressure regulator 601, the heating temperature of the electric heating rod 204 is set, the vacuum pump 501 is turned on, and the vacuum is drawn into the pot through the connecting pipe 500. The pressure gauge 301 on the top of the pot lid 300 is observed. When the set vacuum level is reached, the pressure regulator 601 automatically stops the vacuum pump 501 through the relay; if it is lower than the set value, the vacuum pump 501 automatically restarts to maintain a stable negative pressure in the pot.

[0039] The electric heating rod 204 is activated to heat the heat-conducting oil in the sealed space 203. The heat is transferred to the material through the inner pot body 202, causing the material to boil and evaporate under low temperature and low pressure.

[0040] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A low-temperature, low-pressure concentration pot, comprising a base (100), characterized in that, The bases (100) are connected to the pot body assembly (200) via a pivot (101). The pot body assembly (200) is topped with a pot lid (300). The side wall of the base (100) is provided with a support frame (102). The top of the support frame (102) is provided with an adjustment component (400) for assisting the opening and closing of the pot lid (300). The top of the pot lid (300) is provided with a connector that communicates with the inside of the pot body assembly (200). The connector is connected to a vacuum pump (501) for evacuating the inside of the pot body assembly (200) via a connecting pipe (500). The outer wall of the support frame (102) is connected to a control cabinet (600) via a connecting plate.

2. The low-temperature, low-pressure concentration pot according to claim 1, characterized in that, The pot assembly (200) includes an outer pot body (201) fixedly connected to a rotating shaft (101) and an inner pot body (202). A sealed space (203) is formed between the outer pot body (201) and the inner pot body (202). An electric heating rod (204) is provided inside the sealed space (203).

3. The low-temperature, low-pressure concentration pot according to claim 2, characterized in that, The rotating shaft (101) passes through the base (100) and is connected to a drive assembly (205) for driving the pot body assembly (200) to rotate. The drive assembly (205) includes a worm gear (206) fixedly connected to the outer wall of the rotating shaft (101) and a worm (207) meshing with the worm gear (206). The worm (207) is connected to the base (100) through a mounting seat (208), and one end of the worm (207) passes through the mounting seat (208) and is connected to a handwheel (209).

4. The low-temperature, low-pressure concentration pot according to claim 3, characterized in that, The lid (300) is equipped with a pressure gauge (301) on top for detecting the internal air pressure of the inner pot body (202), and the lid (300) and the inner pot body (202) are fixed together by a locking fastener (302).

5. A low-temperature, low-pressure concentration pot according to claim 1, characterized in that, The adjustment assembly (400) includes a support column (401) disposed on the top of the support frame (102), an installation plate (402) rotatably disposed on the outer wall of the support column (401), and a lifting assembly (403) disposed on the installation plate (402) and connected to the pot lid (300) for driving the pot lid (300) to move up and down to achieve opening and closing.

6. A low-temperature, low-pressure concentration pot according to claim 5, characterized in that, The lifting assembly (403) includes a bushing (404) rotatably mounted on a mounting plate (402) via a bearing and a screw (405) threadedly connected to the bushing (404). The bottom of the screw (405) is fixedly connected to the top of the pot lid (300), and a handle (406) is provided on the outer wall of the bushing (404).

7. A low-temperature, low-pressure concentration pot according to claim 6, characterized in that, The top of the pot lid (300) is provided with a limiting rod (303) for limiting the lifting and lowering of the pot lid (300), and the limiting rod (303) cooperates with the mounting plate (402).

8. A low-temperature, low-pressure concentration pot according to claim 2, characterized in that, The control cabinet (600) is also equipped with a pressure regulator (601), which is connected to the inside of the inner pot body (202) and electrically connected through a relay vacuum pump (501).

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