Cooling heat exchanger

Abstract

The utility model relates to a cooling heat exchanger, and belongs to the technical field of edible oil processing. The cooling heat exchanger comprises a tank body, a plurality of heat exchange tubes and baffle plates, the tank body is provided with a first cavity, a second cavity and a third cavity, the first cavity is provided with a working medium inlet, the second cavity is provided with a working medium outlet, and the third cavity is provided with a first steam inlet, a steam outlet and a liquid discharging connector; the heat exchange pipes and the baffle plates are arranged in the third cavity in the axial direction of the tank body, the inlet ends of the heat exchange pipes communicate with the first cavity, the outlet ends of the heat exchange pipes communicate with the second cavity, and the baffle plates are used for partitioning the third cavity to form a roundabout flowing channel. According to the scheme provided by the utility model, the problem of waste heat recovery of waste water vapor is solved through the roundabout flowing channel and the heat exchange tube.

Description

Technical Field

[0001] The utility model relates to the technical field of edible oil processing, in particular to a cooling heat exchanger. Background Art

[0002] The edible oil refining process includes key steps such as degumming, deacidification, decolorization, and deodorization. Deodorization removes low-molecular-weight aldehydes, ketones, unsaturated hydrocarbons, glycerides, and free fatty acid oxides from the oil. These substances have low boiling points. Under the same processing conditions, steam distillation is used to remove them under high temperature and high vacuum conditions, leveraging the volatility difference between these substances and triglycerides. During the liquid-gas mass transfer process, contact between the vapor and liquid causes the vapor to become saturated with the volatile substances, releasing the oil, thereby removing odorous substances from the oil and raising the smoke point of the edible oil, thereby improving its flavor. Furthermore, during the gas-liquid mass transfer process, the water vapor pressure can also destroy some pigments in the edible oil, making it brighter and more transparent.

[0003] The existing deodorization treatment process and corresponding equipment can meet the deodorization needs of common edible oils. However, the existing treatment equipment fails to utilize the waste heat of the discarded water vapor during deodorization, resulting in great waste and is not conducive to low-carbon development. Utility Model Content

[0004] In order to overcome the problems existing in the related art, the utility model provides a cooling heat exchanger, which solves the problem of waste heat recovery of water vapor through a circuitous flow channel and a heat exchange tube.

[0005] A first aspect of the utility model provides a cooling heat exchanger for deodorizing edible oil vapor, comprising a tank body, a plurality of heat exchange tubes and a baffle;

[0006] The tank body has a first chamber, a second chamber and a third chamber, the first chamber is provided with a working medium inlet, the second chamber is provided with a working medium outlet, and the third chamber is provided with a first steam inlet, a steam outlet and a liquid drain interface;

[0007] The plurality of heat exchange tubes and the baffle are arranged in the third chamber along the axial direction of the tank body. The inlet end of the heat exchange tube is connected to the first chamber, and the outlet end is connected to the second chamber. The baffle is used to separate the third chamber to form a circuitous flow channel.

[0008] In a possible implementation of the first aspect, the tank body includes a top cover, a cylinder, and a bottom cover in sequence, wherein the top cover is arranged at the top end of the cylinder, and the bottom cover is arranged at the bottom end of the cylinder;

[0009] A mounting plate is provided on the top end surface of the cylinder; a plurality of mounting holes are provided on the mounting plate; an end surface of the mounting plate facing the bottom cover is connected to the baffle, and the baffle is sealed to the cylinder;

[0010] The top cover is provided with the working medium inlet and the working medium outlet, and a partition is provided inside the top cover, the partition is sealed with the mounting plate, and the partition separates the internal space of the top cover to form the first chamber and the second chamber;

[0011] The bottom cover is provided with the drainage interface;

[0012] The heat exchange tube is arranged in a U-shaped structure, and both ends of the heat exchange tube are arranged on the mounting hole.

[0013] In a possible implementation of the first aspect above, a fixing structure is further included, wherein the fixing structure is connected to the mounting plate, and the heat exchanger and the baffle are fixed to the third chamber through the fixing structure.

[0014] In a possible implementation of the first aspect above, the fixing structure includes a pull rod and a distance tube arranged along the axial direction of the cylinder, the distance tube is sleeved on the pull rod, one end of the distance tube is connected to the mounting plate, and the heat exchange tube and the deflector are fixed in the third chamber through the distance tube.

[0015] In a possible implementation of the first aspect above, a groove is provided on one end surface of the mounting plate facing the top cover, a sealing strip is provided on the groove, the partition is embedded in the groove, and a sealing gasket is provided on the outer peripheral edge of the deflector.

[0016] In a possible implementation of the first aspect above, the partition includes a shell and a heat insulation layer, and the heat insulation layer is filled in the shell.

[0017] In a possible implementation of the first aspect above, the shell is made of stainless steel, and the thermal insulation layer is an aerogel layer.

[0018] In a possible implementation of the first aspect, the aerogel layer is a silicon-based aerogel, and the thickness of the silicon-based aerogel is 10 to 20 mm.

[0019] In a possible implementation of the first aspect above, a support is provided on the outer side of the tank body.

[0020] In a possible implementation of the first aspect above, a thermometer interface and a sight glass port are further provided on the outer surface of the tank body, and the thermometer interface is connected to a temperature measuring box, and a thermometer is provided on the temperature measuring box.

[0021] The technical solution provided by the utility model may have the following beneficial effects:

[0022] When the technical solution of the utility model is applied, it is combined in an existing deodorizing tank, wherein the working medium inlet is connected to soft water, the working medium outlet is connected to a steam generator, the first steam inlet is connected to the vacuum connection port of the deodorizing tank, and the steam outlet is connected to the vacuum system. When in use, after the edible oil is deodorized in the deodorizing tank, the water vapor flows through the circuitous flow channel under the action of the vacuum system, exchanges heat with the heat exchange tube, and increases the initial temperature of the soft water entering the steam generator, which can effectively reduce the energy consumption of the steam generator. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other objects, features and advantages of the present invention will become more apparent through a more detailed description of exemplary embodiments of the present invention in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present invention.

[0024] Figure 1 This is a schematic diagram of the overall structure of a cooling heat exchanger shown in an embodiment of the present utility model;

[0025] Figure 2 This is another structural diagram of the cooling heat exchanger shown in the embodiment of the utility model

[0026] Figure 3 This is a top view of a cooling heat exchanger shown in an embodiment of the present utility model;

[0027] Figure 4 yes Figure 2 Enlarged schematic diagram of point A in the middle. Description of the drawings:

[0029] 1. Tank body; 1a. First chamber; 1b. Second chamber; 1c. Third chamber; 10. Working medium inlet; 11. Working medium outlet; 12a. First steam inlet; 12b. Second steam inlet; 13. Steam outlet; 14. Drain port; 15. Top cover; 150. Partition; 16. Cylinder; 160. Mounting plate; 160a. Groove; 161. Sealing strip; 17. Bottom cover; 18. Support; 19. Thermometer port; 20. Sight glass port;

[0030] 2. Heat exchange tube;

[0031] 3. Baffle;

[0032] 4. Fixed structure; 41. Tie rod; 42. Distance tube;

[0033] 5. Temperature measuring box. DETAILED DESCRIPTION

[0034] The following describes preferred embodiments of the present invention in more detail with reference to the accompanying drawings. Although preferred embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention can be implemented in various forms and should not be limited by the embodiments described herein. Rather, these embodiments are provided to make the present invention more thorough and complete, and to fully convey the scope of the present invention to those skilled in the art.

[0035] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0037] In addition, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.

[0038] The technical solutions of the embodiments of the present utility model are described in detail below with reference to the accompanying drawings.

[0039] like Figure 1 As shown, a cooling heat exchanger provided by an embodiment of the present utility model includes a tank body 1, a plurality of heat exchange tubes 2 and a baffle 3;

[0040] The tank body 1 has a first chamber 1a, a second chamber 1b and a third chamber 1c. The first chamber 1a is provided with a working medium inlet 10, the second chamber 1b is provided with a working medium outlet 11, and the third chamber 1c is provided with a first steam inlet 12a, a steam outlet 13 and a liquid drain interface 14.

[0041] The plurality of heat exchange tubes 2 and the baffle 3 are arranged in the third chamber 1c along the axial direction of the tank body 1. The inlet end of the heat exchange tube 2 is connected to the first chamber 1a, and the outlet end is connected to the second chamber 1b. The baffle 3 is used to separate the third chamber 1c to form a circuitous flow channel.

[0042] The tank body 1 is a cylindrical structure made of stainless steel. When the cooling heat exchanger is used in the edible oil deodorization treatment system, the tank body 1 is installed vertically on the ground. A working fluid inlet 10 and a working fluid outlet 11 are set on the top of the tank body 1. The working fluid inlet 10 transports soft water. The working fluid inlet 10 can be connected to a soft water storage tank or a device for generating soft water. The working fluid inlet 10 is connected to the steam generator. The soft water flows through the first chamber 1a, the heat exchange tube 2 and the second chamber 1b in sequence. The soft water exchanges heat with the waste water vapor in the heat exchange tube 2, thereby increasing the initial temperature of the soft water entering the steam generator and reducing the energy consumption of the steam generator.

[0043] In this embodiment, the baffle 3 is arranged in the third chamber 1c along the axial direction of the tank body 1, and a circuitous flow channel is formed in the third chamber 1c, which can extend the flow range of the waste water vapor and increase the contact time between the waste water vapor and the heat exchange tube 2. After heat exchange, the waste water vapor is liquefied to form waste water (water containing substances such as low molecular aldehydes, ketones, unsaturated hydrocarbons, glycerides and oxides of free fatty acids) and can be discharged through the drain interface 14.

[0044] In a preferred embodiment, the tank body 1 of the cooling heat exchanger includes a top cover 15, a cylinder 16 and a bottom cover 17, wherein the top cover 15 is arranged at the top end of the cylinder 16, and the bottom cover 17 is arranged at the bottom end of the cylinder 16;

[0045] A mounting plate 160 is provided on the top end surface of the cylinder 16; a plurality of mounting holes are provided on the mounting plate 160; an end surface of the mounting plate 160 facing the bottom cover 17 is connected to the baffle 3, and the baffle 3 is sealed to the cylinder 16;

[0046] The top cover 15 is provided with the working medium inlet 10 and the working medium outlet 11. A partition 150 is provided inside the top cover 15. The partition 150 is sealed to the mounting plate 160. The partition 150 separates the internal space of the top cover 15 to form the first chamber 1a and the second chamber 1b.

[0047] The bottom cover 17 is provided with the drainage port 14;

[0048] The heat exchange tube 2 is arranged in a U-shaped structure, and both ends of the heat exchange tube 2 are arranged on the mounting hole.

[0049] Specifically, see Figure 2 and Figure 3 The top cover 15, barrel 16, bottom cover 17, and mounting plate 160 are all made of stainless steel. Holes are drilled in mounting plate 160 to form mounting holes for the heat exchange tubes 2. The heat exchange tubes 2 can be secured to the mounting holes via flange connections or welding. Both the top cover 15 and bottom cover 17 are hemispherical structures. A partition 150 within the top cover 15 divides the interior space of the top cover 15 into two smaller compartments. When the top cover 15 is mounted on barrel 16, a first chamber 1a and a second chamber 1b are formed. Each chamber 1a and the second chamber 1b are provided with a corresponding number of mounting holes.

[0050] In this embodiment, the number of heat exchange tubes 2 provided on the third chamber 1c can be set according to the diameter of the tank body 1, the maximum processing capacity of the edible oil deodorization equipment, and the flow rate of water vapor, and is not a sole limitation here.

[0051] In this embodiment, a single heat exchange tube 2 is formed by bending a metal tube, such as a copper tube or a stainless steel tube, which can prevent the waste water vapor from coming into contact with the soft water and contaminating the soft water, and prevent the repeated bringing back of low molecular aldehydes, ketones, unsaturated hydrocarbons, glycerides, and free fatty acid oxides and other substances into the deodorizing tank.

[0052] In a preferred embodiment, see Figure 1 and Figure 4 In order to avoid water vapor from inducing vibration on the heat exchange tube 2 and the baffle 3, improve the anti-interference performance of the heat exchange tube 2 and the baffle 3, extend the service life of the cooling heat exchanger, and reduce the failure rate of the cooling heat exchanger, based on the above specific implementation method, the above cooling heat exchanger also includes a fixed structure 4, the fixed structure 4 is connected to the mounting plate 160, and the heat exchange tube 2 and the baffle 3 are fixed on the third chamber 1c through the fixed structure 4.

[0053] Furthermore, the fixing structure 4 of the cooling heat exchanger includes a pull rod 41 and a distance tube 42 arranged along the axial direction of the cylinder 16, the distance tube 42 is sleeved on the pull rod 41, one end of the distance tube 42 is connected to the mounting plate 160, and the heat exchange tube 2 and the deflector 3 are fixed in the third chamber 1c through the distance tube 42.

[0054] In a preferred embodiment, see Figure 4The mounting plate 160 of the cooling heat exchanger is provided with a groove 160a on one end surface facing the top cover 15. A sealing strip 161 is provided on the groove 160a. The partition 150 is embedded in the groove 160a. A sealing gasket is provided on the outer peripheral edge of the baffle 3. When the top cover 15 is installed on the cylinder 16, the partition 150 inside the top cover 15 cannot be fixed to the mounting plate 160 by welding. Therefore, by forming a groove 160a on the mounting plate 160 and providing a sealing strip 161 on the groove 160a, the partition 150 is aligned with the groove 160a and embedded when the top cover 15 is installed. This can seal the first chamber 1a and the second chamber 1b, preventing the water in the two chambers from mixing. The baffle 3 is a plate-shaped structure made of stainless steel. During installation, it is installed on the mounting plate 160 together with the heat exchange tube 2, and then placed into the cylinder 16 by hoisting. Preferably, the connection between the mounting plate 160 and the cylinder 16 adopts a flange connection to facilitate subsequent disassembly and maintenance.

[0055] In a preferred embodiment, the partition 150 of the cooling heat exchanger includes a shell and a heat insulation layer, and the heat insulation layer is filled in the shell.

[0056] Furthermore, the shell of the cooling heat exchanger is made of stainless steel, and the thermal insulation layer is an aerogel layer.

[0057] Furthermore, the aerogel layer of the cooling heat exchanger is a silicon-based aerogel, and the thickness of the silicon-based aerogel is 10 to 20 mm.

[0058] In a preferred embodiment, a support 18 is provided on the outer surface of the tank body 1 of the cooling heat exchanger, and a second steam inlet 12b is also provided on the tank body.

[0059] In a preferred embodiment, a thermometer interface 19 and a sight glass port 20 are further provided on the outer surface of the tank body 1 of the cooling heat exchanger. The thermometer interface 19 is connected to a temperature measuring box 5 on which a thermometer is provided.

[0060] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0061] While various embodiments of the present invention have been described above, the above descriptions are illustrative and non-exhaustive, and are not intended to be limiting of the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is selected to best explain the principles of the embodiments, their practical applications, or improvements to existing technologies, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A cooling heat exchanger for deodorizing edible oil vapor, characterized in that: It includes a tank body, a number of heat exchange tubes and baffles; The tank body has a first chamber, a second chamber and a third chamber, the first chamber is provided with a working medium inlet, the second chamber is provided with a working medium outlet, and the third chamber is provided with a first steam inlet, a steam outlet and a liquid drain interface; The plurality of heat exchange tubes and the baffle are arranged in the third chamber along the axial direction of the tank body. The inlet end of the heat exchange tube is connected to the first chamber, and the outlet end is connected to the second chamber. The baffle is used to separate the third chamber to form a circuitous flow channel.

2. The cooling heat exchanger according to claim 1, characterized in that: The tank body includes a top cover, a cylinder and a bottom cover, wherein the top cover is arranged at the top end of the cylinder and the bottom cover is arranged at the bottom end of the cylinder; A mounting plate is provided on the top end surface of the cylinder; a plurality of mounting holes are provided on the mounting plate; an end surface of the mounting plate facing the bottom cover is connected to the baffle, and the baffle is sealed to the cylinder; The top cover is provided with the working medium inlet and the working medium outlet, and a partition is provided inside the top cover, the partition is sealed with the mounting plate, and the partition separates the internal space of the top cover to form the first chamber and the second chamber; The bottom cover is provided with the drainage interface; The heat exchange tube is arranged in a U-shaped structure, and both ends of the heat exchange tube are arranged on the mounting hole.

3. The cooling heat exchanger according to claim 2, characterized in that: It also includes a fixing structure, which is connected to the mounting plate, and the heat exchanger and the baffle are fixed in the third chamber through the fixing structure.

4. The cooling heat exchanger according to claim 3, characterized in that: The fixing structure includes a pull rod and a distance tube arranged along the axial direction of the cylinder. The distance tube is sleeved on the pull rod. One end of the distance tube is connected to the mounting plate. The heat exchange tube and the deflector are fixed in the third chamber through the distance tube.

5. The cooling heat exchanger according to claim 2, characterized in that: A groove is provided on one end surface of the mounting plate facing the top cover, a sealing strip is provided on the groove, the partition is embedded in the groove, and a sealing gasket is provided on the outer peripheral edge of the deflector.

6. The cooling heat exchanger according to claim 5, characterized in that: The partition includes a shell and a heat insulation layer, and the heat insulation layer is filled in the shell.

7. The cooling heat exchanger according to claim 6, characterized in that: The shell is made of stainless steel, and the heat insulation layer is an aerogel layer.

8. The cooling heat exchanger according to claim 7, characterized in that: The aerogel layer is a silicon-based aerogel, and the thickness of the silicon-based aerogel is 10 to 20 mm.

9. The cooling heat exchanger according to claim 1, characterized in that: A support is provided on the outer side of the tank body, and a second steam inlet is also provided on the tank body.

10. The cooling heat exchanger according to claim 1, characterized in that A thermometer interface and a sight glass port are also provided on the outer surface of the tank body. The thermometer interface is connected to a temperature measuring box, and a thermometer is provided on the temperature measuring box.

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