Backflow prevention device of spice distillation tower

Abstract

The utility model provides an anti-backflow device of a spice distillation tower. Belongs to the field of perfume production. According to the technical key points, the device comprises a distillation mechanism, the distillation mechanism comprises a distillation tower, one side of the distillation tower is fixedly connected with a communicated gas inlet pipe, one end, far away from the distillation tower, of the gas inlet pipe is fixedly connected with a communicated gas guide pipe, the interior of the gas guide pipe is fixedly connected with a limiting ring, and a fixing rod penetrates through the interior of the limiting ring; the bottom of the fixing rod is fixedly connected with a plug plate, the end, away from the plug plate, of the fixing rod is fixedly connected with a traction plate, and a first spring is fixedly connected between the traction plate and the limiting ring. The backflow prevention mechanism comprises a U-shaped pipe fixedly connected to the bottom of the air inlet pipe, and the end, away from the air inlet pipe, of the U-shaped pipe is lower than the air inlet pipe; the utility model aims to provide an anti-backflow device of a spice distillation tower. The anti-backflow device is used for improving the anti-backflow effect.

Description

Technical Field

[0001] This utility model relates to the field of fragrance production, specifically a backflow prevention device for a fragrance distillation tower. Background Technology

[0002] The working principle of a distillation column is not limited to purifying alcohol. The primary function of a distillation column is to separate mixed liquids, utilizing the different volatility (boiling point) of different liquids under different conditions, such as temperature, to achieve purification. Distillation columns are mainly divided into plate columns and thin-film columns. Plate columns are more common, and their structure consists of three parts: plates, a reboiler, and a condenser.

[0003] Current anti-backflow devices for spice distillation towers, as described in patent CN217558318U, include a base with support legs fixedly installed on both sides of the top of the base. The main body of the distillation tower is fixedly installed on the top of the two support legs. An air inlet pipe is fixedly installed on one side of the main body of the distillation tower. A rotating shaft is inserted and connected to one side of the air inlet pipe through an embedded bearing. A flap is fitted on the surface of the rotating shaft. A knob is fixedly installed at one end of the rotating shaft. A fixing block is fixedly installed on the other side of the air inlet pipe. A through hole is opened in the middle of the fixing block. A conical cylinder is fixedly installed on one side of the through hole. A connecting shaft is inserted and connected to the inner wall of the through hole.

[0004] Regarding the aforementioned technologies, the inventors believe that the extension and retraction of the connecting plate is controlled by the installed limit spring, which in turn drives the extension and retraction of the connecting shaft. The extension and retraction of the connecting shaft then pushes the conical block to move, facilitating the separation and closure of the conical block and the conical cylinder to prevent the backflow of liquid inside the distillation column. However, during the gas discharge process, the conical cylinder needs to be in an open position. If the liquid inside the distillation column is discharged into the gas inlet pipe at this time, the liquid will flow back through the conical cylinder, resulting in a poor effect on preventing the backflow of liquid inside the distillation column. Utility Model Content

[0005] The purpose of this invention is to provide a backflow prevention device for a spice distillation tower to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A backflow prevention device for a spice distillation tower, comprising:

[0008] A distillation mechanism includes a distillation column, a gas inlet pipe fixedly connected to one side of the distillation column, a gas guide pipe fixedly connected to the end of the gas inlet pipe away from the distillation column, a limiting ring fixedly connected inside the gas guide pipe, a fixing rod passing through the inside of the limiting ring, a stopper plate fixedly connected to the bottom of the fixing rod, a traction plate fixedly connected to the end of the fixing rod away from the stopper plate, and a first spring fixedly connected between the traction plate and the limiting ring.

[0009] The anti-backflow mechanism includes a U-shaped tube fixedly connected to the bottom of the air intake pipe, wherein the end of the U-shaped tube away from the air intake pipe is lower than the height of the air intake pipe.

[0010] As a further embodiment of this utility model: a traction rod is fixedly connected to the top of the gas guide pipe, and the end of the traction rod away from the gas guide pipe is fixedly connected to the distillation column.

[0011] As a further embodiment of this utility model: a support plate is fixedly inserted through the outer side of the U-shaped tube, and the support plate is fixedly connected to the outer wall of the distillation column.

[0012] As a further embodiment of this utility model: the top of the support plate is symmetrically and fixedly connected with reinforcing ribs, and both sets of the U-shaped tubes are fixedly connected to the distillation column.

[0013] As a further embodiment of this utility model: a retaining ring is fixedly connected inside the U-shaped tube, a guide rod passes through the inside of the retaining ring, a float is fixedly connected to the top of the guide rod, a guide ring is slidably connected to the outside of the guide rod, and multiple connecting rods are fixedly connected in a ring array between the guide ring and the inner wall of the U-shaped tube.

[0014] As a further embodiment of this utility model: a rubber sleeve is fixedly connected to the outer side of the float, and a limit block is fixedly connected to the end of the guide rod away from the float.

[0015] As a further embodiment of this utility model, a valve is fixedly connected to the bottom of the U-shaped tube.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] With the above-described structure, this invention, through the cooperation of the U-shaped tube, the gas guide pipe, the stopper plate, and the first spring, allows the liquid inside the distillation column to flow into the gas inlet pipe and be collected inside the U-shaped tube. Because of the U-shaped structure, the liquid flowing into the U-shaped tube forms a water seal, effectively preventing gas from entering through it. When the liquid level inside the U-shaped tube is higher than the end of the U-shaped tube furthest from the gas inlet pipe, the liquid overflows, achieving automatic liquid discharge and effectively reducing the probability of liquid backflow, thus improving the backflow prevention effect. Attached Figure Description

[0018] The present invention will be further described in detail below with reference to the embodiments shown in the accompanying drawings, but this does not constitute any limitation on the present invention.

[0019] Figure 1 This is a schematic diagram of a backflow prevention device for a spice distillation tower.

[0020] Figure 2 This is a cross-sectional view of the gas guide pipe in an anti-backflow device for a spice distillation tower.

[0021] Figure 3 A backflow prevention device for a spice distillation tower Figure 2 A schematic diagram of the structure of part A.

[0022] Figure 4 A backflow prevention device for a spice distillation tower Figure 2 A schematic diagram of the structure of part B.

[0023] In the diagram: 1. Distillation mechanism; 101. Distillation column; 102. Inlet pipe; 103. Guide pipe; 104. Limiting ring; 105. Traction plate; 106. Fixing rod; 107. First spring; 108. Plug plate; 109. Traction rod; 2. Anti-backflow mechanism; 201. U-shaped tube; 202. Retaining ring; 203. Float; 204. Guide ring; 205. Connecting rod; 206. Limiting block; 207. Guide rod; 208. Valve; 209. Support plate; 210. Reinforcing rib plate; 211. Rubber sleeve. Detailed Implementation

[0024] The technical solution of this patent will be further described in detail below with reference to specific embodiments.

[0025] Please see Figure 1-4A backflow prevention device for a spice distillation tower includes a distillation mechanism 1, which includes a distillation tower 101. An inlet pipe 102 is fixedly connected to one side of the distillation tower 101. The inlet pipe 102 is used to allow gas to enter the distillation tower 101 and to allow some liquid to flow out of the distillation tower 101. A guide pipe 103 is fixedly connected to the end of the inlet pipe 102 furthest from the distillation tower 101. The guide pipe 103 is used to guide the gas entering the inlet pipe 102, allowing the gas to flow into the interior of the inlet pipe 102 and then into the interior of the distillation tower 101. A traction rod 109 is fixedly connected to the top of the guide pipe 103. The end of the traction rod 109 furthest from the guide pipe 103 is fixedly connected to the distillation tower 101. The traction rod 109 is used to connect and fix the distillation tower 101 to the guide pipe 103, thereby improving the stability of the guide pipe 103.

[0026] A limiting ring 104 is fixedly connected inside the gas guide pipe 103. A fixing rod 106 passes through the inside of the limiting ring 104. A stopper plate 108 is fixedly connected to the bottom of the fixing rod 106. The stopper plate 108 is designed to block the limiting ring 104, so that when gas is stopped from being discharged into the gas guide pipe 103, the stopper plate 108 can block the limiting ring 104, thereby reducing the probability of gas backflow inside the distillation column 101 and the gas inlet pipe 102. A traction plate 105 is fixedly connected to the end of the fixing rod 106 away from the stopper plate 108. A first spring 107 is fixedly connected between the traction plate 105 and the limiting ring 104. Specifically, the first spring 107 is in a compressed state, so that when gas is stopped from being discharged into the gas guide pipe 103, the first spring 107 can restore its deformation, driving the traction plate 105 and the stopper plate 108 to move upward.

[0027] The anti-backflow mechanism 2 includes a U-shaped tube 201 fixedly connected to the bottom of the inlet pipe 102. The U-shaped tube 201 is designed to catch the liquid discharged from the inlet pipe 102. A valve 208 is fixedly connected to the bottom of the U-shaped tube 201, which is designed to allow the liquid inside the U-shaped tube 201 to be discharged when opened, thereby completely draining the liquid inside the U-shaped tube 201. The end of the U-shaped tube 201 away from the inlet pipe 102 is lower than the height of the inlet pipe 102, so that when the liquid level inside the U-shaped tube 201 is higher than the end away from the inlet pipe 102, it can overflow from the U-shaped tube 201. A support plate 209 is fixedly connected to the outer wall of the distillation column 101 through the outside of the U-shaped tube 201. The support plate 209 can further fix the U-shaped tube 201, thereby improving the stability of the U-shaped tube 201. The top of the support plate 209 is symmetrically fixed with reinforcing ribs 210, and both sets of U-shaped tubes 201 are fixedly connected to the distillation column 101. The reinforcing ribs 210 are used to further connect and fix the support plate 209 and the distillation column 101, thereby improving the connection stability between the distillation column 101 and the support plate 209.

[0028] A retaining ring 202 is fixedly connected inside the U-shaped tube 201. A guide rod 207 passes through the inside of the retaining ring 202. A float 203 is fixedly connected to the top of the guide rod 207. The float 203 is designed to block the retaining ring 202 when the liquid level inside the U-shaped tube 201 is lower than the height of the retaining ring 202, thereby reducing the probability of gas blowing out the liquid inside the U-shaped tube 201 and causing subsequent gas to be discharged from the U-shaped tube 201. A rubber sleeve 211 is fixedly connected to the outside of the float 203. A limit block 206 is fixedly connected to the end of the guide rod 207 away from the float 203. The rubber sleeve 211 is designed to seal the gap between the retaining ring 202 and the float 203. A guide ring 204 is slidably connected to the outside of the guide rod 207. Multiple connecting rods 205 are fixedly connected in a ring array between the guide ring 204 and the inner wall of the U-shaped tube 201. The guide ring 204 is designed to guide the guide rod 207.

[0029] In this embodiment, the distillation column 101 is existing technology and will not be described in detail here.

[0030] In use, liquid from inside the distillation column 101 is injected into the U-shaped tube 201 through the end away from the inlet pipe 102. Then, the distillation column 101 is started, and gas is discharged into the guide pipe 103. After the gas enters the guide pipe 103, it pushes the stopper plate 108 downwards, allowing the gas to pass through the limiting ring 104 and the inlet pipe 102 into the distillation column 101. Due to the obstruction of the float 203, the gas will not pass through the baffle ring 202 into the U-shaped tube 201. When the liquid inside the distillation column 101 flows into the U-shaped tube 201 through the inlet pipe 102, it can fall above the baffle ring 202. Then, the float 203, under the influence of buoyancy... The upward movement opens the baffle ring 202, allowing liquid to flow into the U-shaped tube 201. When the liquid level inside the U-shaped tube 201 is higher than the end of the U-shaped tube 201 away from the inlet pipe 102, the liquid overflows from that end, effectively reducing the probability of liquid backflow. When the gas duct 103 stops discharging gas, the first spring 107 returns to its original shape, pushing the traction plate 105 upward, which in turn drives the fixed rod 106 and the stopper plate 108 upward until the stopper plate 108 moves upward and abuts against the limiting ring 104, thus preventing the probability of gas backflow inside the distillation column 101.

[0031] The above-described embodiments are preferred embodiments of the present utility model and are only used to facilitate the illustration of the present utility model. They are not intended to limit the present utility model in any way. Any person skilled in the art who makes partial modifications or alterations to the technical content disclosed in the present utility model without departing from the scope of the technical features of the present utility model shall still fall within the scope of the technical features of the present utility model.

Claims

1. A backflow prevention device for a spice distillation tower, characterized in that, include A distillation mechanism (1) includes a distillation column (101), a connecting air inlet pipe (102) is fixedly connected to one side of the distillation column (101), a connecting air guide pipe (103) is fixedly connected to the end of the air inlet pipe (102) away from the distillation column (101), a limiting ring (104) is fixedly connected inside the air guide pipe (103), a fixing rod (106) passes through the inside of the limiting ring (104), a stopper plate (108) is fixedly connected to the bottom of the fixing rod (106), a traction plate (105) is fixedly connected to the end of the fixing rod (106) away from the stopper plate (108), and a first spring (107) is fixedly connected between the traction plate (105) and the limiting ring (104). Anti-backflow mechanism (2), the anti-backflow mechanism (2) includes a U-shaped tube (201) fixedly connected to the bottom of the air intake pipe (102), the end of the U-shaped tube (201) away from the air intake pipe (102) is lower than the height of the air intake pipe (102).

2. The anti-backflow device for a spice distillation tower according to claim 1, characterized in that, A traction rod (109) is fixedly connected to the top of the gas guide pipe (103), and the end of the traction rod (109) away from the gas guide pipe (103) is fixedly connected to the distillation column (101).

3. The anti-backflow device for a spice distillation tower according to claim 1, characterized in that, A support plate (209) is fixedly attached to the outside of the U-shaped tube (201), and the support plate (209) is fixedly connected to the outer wall of the distillation column (101).

4. The anti-backflow device for a spice distillation tower according to claim 3, characterized in that, The top of the support plate (209) is symmetrically fixedly connected with reinforcing ribs (210), and both sets of U-shaped tubes (201) are fixedly connected to the distillation column (101).

5. The anti-backflow device for a spice distillation tower according to claim 1, characterized in that, A retaining ring (202) is fixedly connected inside the U-shaped tube (201). A guide rod (207) passes through the inside of the retaining ring (202). A float (203) is fixedly connected to the top of the guide rod (207). A guide ring (204) is slidably connected to the outside of the guide rod (207). Multiple connecting rods (205) are fixedly connected in a ring array between the guide ring (204) and the inner wall of the U-shaped tube (201).

6. The anti-backflow device for a spice distillation tower according to claim 5, characterized in that, A rubber sleeve (211) is fixedly connected to the outside of the float (203), and a limit block (206) is fixedly connected to the end of the guide rod (207) away from the float (203).

7. The anti-backflow device for a spice distillation tower according to claim 1, characterized in that, A valve (208) is fixedly connected to the bottom of the U-shaped tube (201).

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