Edible oil refining workshop deodorization equipment provided with mechanical vacuum pump unit

Abstract

The utility model belongs to the field of edible oil refining equipment, and provides edible oil refining workshop deodorization equipment provided with a mechanical vacuum pump unit, which comprises a mechanical vacuum unit, a vacuum condenser, a cooling tower, a cold carrier tank and a refrigerator, a first vacuum pipe is arranged on the mechanical vacuum unit, and a buffer tank is arranged at the other end of the first vacuum pipe; the buffer tank is provided with a second vacuum pipe communicated with the shell pass of the vacuum condenser, the vacuum condenser is provided with a third vacuum pipe close to the top of the shell pass, and the other end of the third vacuum pipe is provided with a fatty acid trapping tower; a feeding main pipe, a first feeding branch pipe communicated with the buffer tank and a second feeding branch pipe communicated with the vacuum condenser are arranged on the feeding side of the fatty acid trapping tower. The device is reasonable in design, steam consumption in the vacuum deodorization stage is greatly reduced, energy cost is reduced, the mechanical vacuum pump runs stably, the grease product quality is improved, the energy-saving and environment-friendly requirements are met, and the device is suitable for large-scale popularization.

Description

Technical Field

[0001] This utility model belongs to the field of edible oil refining equipment, and in particular relates to a deodorization equipment for an edible oil refining workshop equipped with a mechanical vacuum pump unit. Background Technology

[0002] The main equipment in the crude edible oil refining section includes refining tanks, decolorizing tanks, deodorizing tanks, steam boilers, thermal oil furnaces, vacuum pumps, and filtration equipment. After chemical refining, crude oil still contains a certain amount of fatty acids and trace amounts of aldehydes, ketones, hydrocarbons, and glycerol ester oxides, and may have some soapy or earthy odor. These low-boiling-point components constitute the "odor" components of the oil, which are generally low-molecular-weight volatile substances that affect the flavor, smell, color, and stability of the oil. Oil deodorization utilizes the significant difference in volatility between the odorous substances and triglycerides within the oil, removing the odorous substances through steam distillation under high temperature and high vacuum conditions.

[0003] Traditional deodorization processes use a four-stage steam jet pump to create a vacuum. Existing patent CN202124609U discloses a vacuum device for edible oil condensation and freezing deodorization, including a distillation column, a condenser unit, a condenser, a Roots liquid ring vacuum unit, and a collection recovery tank. The outlet of the distillation column is connected to the inlet of the condenser, the refrigerant inlet of the condenser is connected to the refrigerant outlet of the condenser unit, and its refrigerant outlet is connected to the refrigerant inlet of the condenser unit. Its waste discharge port is connected to the collection recovery tank, and its outlet is connected to the inlet of the Roots liquid ring vacuum unit. This deodorization system reduces energy consumption by 60% compared to previous methods; furthermore, the waste gas is collected and recycled, reducing environmental pollution. However, the overall integrity and circulation of the vacuum system established by this device are poor; for example, the vacuum conditions do not apply to the collection stage, reducing the recovery and utilization of effective components. Utility Model Content

[0004] This utility model addresses the technical problems existing in the above-mentioned deodorization process by proposing a deodorization equipment for edible oil refining workshops that is reasonably designed, simple in structure, energy-saving and environmentally friendly, and conducive to cost reduction.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: This utility model provides a deodorization equipment for an edible oil refining workshop equipped with a mechanical vacuum pump unit, including a mechanical vacuum unit and a vacuum condenser. The vacuum condenser includes a tube side and a shell side. A cooling tower connected to the tube side of the vacuum condenser is provided on the supply side of the vacuum condenser through a circulation pipeline. A cold medium inlet and outlet side of the mechanical vacuum unit is provided with a cold carrier tank and a freezer. A first vacuum tube is provided on the mechanical vacuum unit. A buffer tank is provided at the other end of the first vacuum tube. A second vacuum tube connected to the shell side of the vacuum condenser is provided on the buffer tank. A third vacuum tube is provided near the top of the shell side of the vacuum condenser. A fatty acid trapping tower is provided at the other end of the third vacuum tube. A feed header is provided on the feed side of the fatty acid trapping tower. A first feed branch pipe connected to the buffer tank and a second feed branch pipe connected to the vacuum condenser are provided on the feed header.

[0006] Preferably, the mechanical vacuum unit is a four-stage Roots vacuum unit.

[0007] Preferably, the buffer tank is provided with a buffer equalizer near its top.

[0008] Preferably, the buffer equalizer includes a ring beam that snaps into the interior of the buffer tank. An inverted conical guide skirt is provided on the inner side of the ring beam. Multiple sets of evenly distributed pipes arranged in a circular array are provided on the inner side of the guide skirt. At least three evenly distributed buffer supports are provided at the bottom of the guide skirt. A buffer drum is provided at the bottom of the buffer support. The diameter of the buffer drum is smaller than that of the guide skirt and its drum surface faces downward.

[0009] Preferably, the buffer support includes an N-shaped rod with a slot at its bottom end. A fin welded to the inner side of the buffer drum is disposed in the slot. A stud is disposed on the side of the fin, and the stud is movably engaged with an oblong hole disposed on the side of the N-shaped rod. Nuts are disposed at both ends of the stud. A plate hole is disposed on the side of the fin, and a core is disposed in the plate hole. A spring is disposed on the core, and the top surface of the spring contacts the bottom surface of the N-shaped rod.

[0010] Preferably, the radial side of the fin is an arc surface and its end extends toward the center of the buffer drum, and the center of the buffer drum is provided with a through hole.

[0011] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0012] 1. This utility model provides a deodorization device for an edible oil refining workshop equipped with a mechanical vacuum pump unit. A first vacuum pipe, a second vacuum pipe, and a third vacuum pipe connect the mechanical vacuum unit, a buffer tank, a condenser, and a fatty acid collection tower for gas communication. The buffer tank serves as an intermediate container for the crude edible oil, allowing the fatty acids separated under vacuum conditions to enter the fatty acid collection tower. The finished oil then enters the mechanical vacuum unit under vacuum for condensation, compression, and collection. This device is rationally designed, significantly reducing steam consumption during the vacuum deodorization stage, thus reducing energy costs, electricity consumption, and mechanical wear. Furthermore, the mechanical vacuum pump operates smoothly, which is beneficial for improving the quality of oil products, meeting energy-saving and environmental protection requirements, and is suitable for large-scale promotion. Attached Figure Description

[0013] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0014] Figure 1 A schematic diagram of a deodorization device for an edible oil refining workshop, configured with a mechanical vacuum pump unit, is provided for this embodiment.

[0015] Figure 2 This is the main view of the buffer equalizer;

[0016] Figure 3 This is a cross-sectional view of a buffer equalizer;

[0017] Figure 4 Axonometric view of a buffer equalizer;

[0018] In the above figures, 1. Mechanical vacuum unit; 2. Vacuum condenser; 21. Tube side; 22. Shell side; 3. Cooling tower; 4. Cold carrier tank; 5. Refrigeration unit; 6. First vacuum tube; 7. Buffer tank; 8. Second vacuum tube; 9. Third vacuum tube; 10. Fatty acid capture tower; 11. Feed header; 12. First feed branch; 13. Second feed branch; 14. Buffer equalizer; 141. Ring beam; 142. Guide skirt; 143. Distribution pipe; 144. Buffer support; 1441. N-type rod; 1442. Slot; 1443. Fin; 1444. Stud; 1445. Waist-shaped hole; 1446. Nut; 1447. Plate hole; 1448. Core column; 1449. Spring; 145. Buffer drum; 146. Through hole. Detailed Implementation

[0019] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0020] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0021] Examples, such as Figures 1-4 As shown, this utility model provides a deodorization device for an edible oil refining workshop equipped with a mechanical vacuum pump unit. The device includes a mechanical vacuum unit 1 and a vacuum condenser 2. The vacuum condenser 2 includes a tube side 21 and a shell side 22. A cooling tower 3 is provided on the supply side of the vacuum condenser 2 and is connected to its tube side 21 via a circulation pipeline. A cold medium tank 4 and a refrigerator 5 are provided on the inlet and outlet sides of the mechanical vacuum unit 1. The cold medium in the cold medium tank 4 circulates between the refrigerator 5 and the mechanical vacuum unit 1 under the power of the circulation pump, cooling the hot fluid entering the mechanical vacuum unit 1. The cooling medium in the cooling tower 3 circulates between the condenser and the cooling tower 3 via a condensation pump and is connected to the refrigerator 5 via a pipeline, improving the cooling efficiency of the cooling medium entering the condenser. Based on this, the mechanical vacuum unit 1 provided by this utility model is provided with a first vacuum tube 6, and a buffer tank 7 is provided at the other end of the first vacuum tube 6. A second vacuum tube 8 is provided on the buffer tank 7 and communicates with the shell side 22 of the vacuum condenser 2. A third vacuum tube 9 is provided near the top of the shell side 22 of the vacuum condenser 2. A fatty acid trapping tower 10 is provided at the other end of the third vacuum tube 9. A feed main pipe 11 is provided on the feed side of the fatty acid trapping tower 10. A first feed branch pipe 12 communicates with the buffer tank 7 and a second feed branch pipe 13 communicates with the vacuum condenser 2.

[0022] Specifically, the first vacuum tube 6, the second vacuum tube 8, and the third vacuum tube 9 provided by this utility model connect the spaces of the mechanical vacuum unit 1, the buffer tank 7, the vacuum condenser 2, and the fatty acid collection tower 10 for gas communication. The buffer tank 7 serves as an intermediate container for the crude edible oil. Under vacuum conditions, a portion of the fatty acids separated from the crude oil enters the fatty acid collection tower 10 through the first feed branch pipe 12, while the other portion, after condensation in the vacuum condenser 2, enters the feed header pipe 11 through the second feed branch pipe 13, and then enters the fatty acid collection tower 10 from the feed header pipe 11. The finished oil, under vacuum, enters the mechanical vacuum unit 1 to complete condensation, compression, and collection. In this way, the mechanical vacuum unit 1 provides interconnected vacuum conditions for the buffer tank 7, the condenser, and the fatty acid collection tower 10. While completing deodorization, it significantly reduces steam consumption during the vacuum deodorization stage, reducing energy costs, electricity consumption, and mechanical wear. Furthermore, it completes the collection of fatty acids, meeting energy-saving and environmental protection requirements.

[0023] Furthermore, the mechanical vacuum unit 1 used in this utility model is a four-stage Roots vacuum unit. This unit can effectively guarantee the vacuum power required by the equipment and operate smoothly, which is conducive to improving the quality of oil products and reducing losses.

[0024] Considering that the buffer tank 7 is an intermediate transition container, in order to improve the stability of gas entering the mechanical vacuum unit 1 from the buffer tank 7, the buffer tank 7 provided by this utility model is provided with a buffer equalizer 14 near its top.

[0025] Specifically, the buffer equalizer 14 includes a ring beam 141 that snaps into the interior of the buffer tank 7. An inverted conical guide skirt 142 is provided on the inner side of the ring beam 141. Multiple sets of evenly distributed pipes 143 arranged in a circular array are provided on the inner side of the guide skirt 142. At least three evenly distributed buffer supports 144 are provided at the bottom of the guide skirt 142. A buffer drum 145 is provided at the bottom of the buffer support 144. The diameter of the buffer drum 145 is smaller than that of the guide skirt 142 and its drum surface faces downward. After condensation in the vacuum condenser 2, the gas phase enters the buffer tank 7 through the second vacuum tube 8. Most of the gas phase first contacts the buffer drum 145, which buffers and balances some of the unstable impact force. The guide skirt 142 prevents the gas phase from rushing straight to the top of the buffer tank 7 along the inner wall. Instead, it guides the gas phase to the distribution pipe 143. The gas phase continues to flow from the distribution pipe 143 above the buffer drum 145 to the top of the buffer tank 7. The distribution pipe 143 further improves the flow stability of the gas phase after entering the first vacuum tube 6.

[0026] To improve the practicality of the buffer bracket 144, the buffer bracket 144 provided by this utility model includes an N-shaped rod 1441. The bottom end of the N-shaped rod 1441 is provided with a slot 1442. A fin 1443 welded to the inner side of the buffer drum 145 is provided in the slot 1442. A stud 1444 is provided on the side of the fin 1443. The stud 1444 is in vertical engagement with a waist-shaped hole 1445 provided on the side of the N-shaped rod 1441. Nuts 1446 are provided at both ends of the stud 1444. A plate hole 1447 is provided on the side of the fin 1443. A core post 1448 is provided in the plate hole 1447. A spring 1449 is provided on the core post 1448. The top surface of the spring 1449 contacts and engages with the bottom surface of the N-shaped rod 1441. The buffer drum 145 serves as the direct force-bearing surface. The disturbance force it generates can compress the spring 1449 and store energy. At the same time, the fins 1443 and the N-shaped rod 1441 move up and down along the mating direction of the stud 1444 and the waist-shaped hole 1445. The restoring tendency of the spring 1449 causes the buffer drum 145 to move towards the equilibrium direction until the buffer support 144 is in dynamic equilibrium. This reduces the influence of unstable factors in the buffer tank 7 on the vacuum power.

[0027] Furthermore, the centripetal side of the fin 1443 provided by this utility model is an arc surface and its end extends toward the center of the buffer drum 145. This provides a buffer fulcrum for the buffer support 144 and also provides a certain guiding effect, allowing some gas to move along the surface of the buffer drum 145 in a centripetal and then upward direction, which helps to ensure that the buffer tank 7 has a better buffering effect and improves the stability and safety of the system.

[0028] Considering that some water vapor will adhere to the surface of the buffer equalizer 14, in order to prevent water vapor from accumulating inside the buffer drum 145, this utility model provides a through hole 146 in the center of the buffer drum 145 for flow passage.

[0029] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A deodorization device for an edible oil refining workshop equipped with a mechanical vacuum pump unit, comprising a mechanical vacuum unit and a vacuum condenser, wherein the vacuum condenser includes a tube side and a shell side, and a cooling tower connected to its tube side via a circulation pipeline is provided on the supply side of the vacuum condenser, characterized in that, The mechanical vacuum unit has a cold medium inlet and outlet side equipped with a cold medium tank and a freezer. The mechanical vacuum unit is equipped with a first vacuum tube, and a buffer tank is installed at the other end of the first vacuum tube. A second vacuum tube connected to the shell side of the vacuum condenser is installed on the buffer tank. The vacuum condenser is equipped with a third vacuum tube near the top of its shell side. A fatty acid trapping tower is installed at the other end of the third vacuum tube. A feed header is installed on the feed side of the fatty acid trapping tower. A first feed branch connected to the buffer tank and a second feed branch connected to the vacuum condenser are installed on the feed header.

2. The deodorization equipment for an edible oil refining workshop equipped with a mechanical vacuum pump unit according to claim 1, characterized in that, The mechanical vacuum unit is a four-stage Roots vacuum unit.

3. The deodorization equipment for an edible oil refining workshop equipped with a mechanical vacuum pump unit according to claim 2, characterized in that, The buffer tank is equipped with a buffer equalizer near its top.

4. The deodorization equipment for an edible oil refining workshop equipped with a mechanical vacuum pump unit according to claim 3, characterized in that, The buffer equalizer includes a ring beam that snaps into the interior of the buffer tank. An inverted conical guide skirt is provided on the inner side of the ring beam. Multiple sets of evenly distributed pipes arranged in a circular array are provided on the inner side of the guide skirt. At least three evenly distributed buffer supports are provided at the bottom of the guide skirt. A buffer drum is provided at the bottom of the buffer support. The diameter of the buffer drum is smaller than that of the guide skirt and its drum surface faces downward.

5. The deodorization equipment for an edible oil refining workshop equipped with a mechanical vacuum pump unit according to claim 4, characterized in that, The buffer support includes an N-shaped rod with a slot at its bottom end. A fin welded to the inner side of the buffer drum is disposed in the slot. A stud is disposed on the side of the fin, and the stud is movably engaged with an oblong hole disposed on the side of the N-shaped rod. Nuts are disposed at both ends of the stud. A plate hole is disposed on the side of the fin, and a core is disposed in the plate hole. A spring is disposed on the core, and the top surface of the spring contacts the bottom surface of the N-shaped rod.

6. The deodorization equipment for an edible oil refining workshop equipped with a mechanical vacuum pump unit according to claim 5, characterized in that, The centripetal side of the fin is an arc surface and its end extends toward the center of the buffer drum, and the center of the buffer drum is provided with a through hole.

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