Enzymatic biodiesel reaction kettle

Abstract

The utility model provides an enzymatic biodiesel reaction kettle which comprises a kettle body, a one-way valve is mounted at the bottom of the kettle body and at the upper end of a circulating tank, a detachable tank cover is mounted at the upper end of the circulating tank, a communicating pipe is mounted on the outer surface of the upper end of the circulating tank, and the other end of the communicating pipe is mounted on the outer surface of the upper end of the kettle body. A piston is slidably mounted in the circulating tank, a vertically-arranged hydraulic cylinder is mounted at the bottom of the circulating tank, the movable end of the hydraulic cylinder extends into the circulating tank and is fixedly connected with the piston, and a Z-shaped condensation gas outlet pipe used for being connected with tail gas treatment equipment is mounted on the outer surface of the upper end of the circulating tank. The biodiesel raw material recycling device disclosed by the utility model has the beneficial effects that the recycling times of biodiesel raw materials can be conveniently and intuitively judged, and the efficiency is improved.

Description

Technical Field

[0001] The utility model relates to an enzymatic biodiesel reactor, belonging to the technical field of biodiesel. Background Technique

[0002] The preparation methods of biodiesel include chemical method, physical method and biological enzyme method. The reaction conditions of the biological enzyme method are mild and there is no pollutant emission, which meets the requirements of economic and environmental sustainable development. It is a green process that can completely replace the chemical method to produce biodiesel. Therefore, people gradually pay attention to and adopt this method to prepare biodiesel. In order to make the biodiesel raw material contact with the immobilized enzyme repeatedly, a circulation pump is used to connect the reactor body and the circulation tank. A communicating pipe is installed between the upper ends of the reactor body and the circulation tank. When the circulation pump works, the biodiesel raw material in the reactor body enters the circulation tank, and then flows back into the reactor body to contact the immobilized enzyme, forming a cycle of materials. However, when the biodiesel raw material flows into the circulation tank under the action of the circulation pump, it will be mixed with the original biodiesel raw material in the circulation tank. Subsequently, the mixed new and old biodiesel raw materials flow back into the reactor body. In this way, it is impossible to judge the number of circulation times of the biodiesel raw material, and only by blindly increasing the time can the biodiesel raw material be made to contact the immobilized enzyme sufficiently, which increases energy consumption and has low efficiency. Content of the Utility Model

[0003] Aiming at the deficiencies of the prior art, the purpose of the utility model is to provide an enzymatic biodiesel reactor to solve the problems put forward in the above background technique. The utility model is convenient for intuitively judging the number of circulation times of the biodiesel raw material and improving the efficiency.

[0004] In order to achieve the above purpose, the utility model is realized by the following technical solutions: an enzymatic biodiesel reactor, including a reactor body, a detachable reactor cover is installed at the upper end of the reactor body, a plurality of immobilized enzyme filling sections are installed in the reactor body at equal intervals from top to bottom, a one-way valve is installed at the bottom of the reactor body, the one-way valve conducts in the direction away from the reactor body, the one-way valve is installed at the upper end of the circulation tank, a detachable tank cover is installed at the upper end of the circulation tank, a communicating pipe is installed on the outer surface of the upper end of the circulation tank, the other end of the communicating pipe is installed on the outer surface of the upper end of the reactor body, a piston is slidably installed in the circulation tank, a vertically arranged hydraulic cylinder is installed at the bottom of the circulation tank, and the movable end of the hydraulic cylinder extends into the circulation tank and is fixedly connected to the piston. A Z-shaped condensation outlet pipe for connecting the tail gas treatment equipment is installed on the outer surface of the lowest part of the condensation outlet pipe, and a branch pipe is installed on the outer surface of the branch pipe, and the lower end of the branch pipe is connected and communicated with the recovery tank.

[0005] Further, a nitrogen gas pipe connected to a nitrogen gas storage tank through a hose is installed on the upper surface of the piston. A guiding hole is formed in the middle position of the upper surface of the tank cover. The nitrogen gas pipe penetrates through the guiding hole. A supporting sleeve is arranged directly above the guiding hole. The supporting sleeve is fixedly connected to the tank cover. A sealing sleeve is adhered inside the supporting sleeve. The sealing sleeve wraps around the nitrogen gas pipe. A plurality of air outlet holes are evenly formed on the outer surface of the nitrogen gas pipe.

[0006] Further, a solenoid valve is installed at the upper position of the outer surface of the connecting pipe. The solenoid valve is installed at the bottom of the methanol storage tank.

[0007] Further, the immobilized enzyme filling section includes a wire mesh woven container. A plurality of wire mesh woven containers are arranged in the kettle body from top to bottom. The wire mesh woven containers are filled with immobilized enzymes. A plurality of vertically arranged support rods are installed at the bottom of the wire mesh woven containers. The support rods on the upper layer of the wire mesh woven containers are in contact with the lower layer of the wire mesh woven containers. The mesh holes of the wire mesh woven containers are smaller than the diameter of the immobilized enzymes.

[0008] Further, a liquid discharge pipe is installed on the outer surface of the lower end of the recovery tank. The other end of the liquid discharge pipe is installed with a liquid discharge valve.

[0009] Further, a perforation is formed at the bottom of the circulation tank. The movable end of the hydraulic cylinder penetrates through the perforation.

[0010] The beneficial effects of the present utility model are as follows:

[0011] 1. Control the hydraulic cylinder to contract. Then, the hydraulic cylinder drives the piston to move downward in the circulation tank. At this time, the one-way valve opens, so that the biodiesel raw material in the kettle body flows into the circulation tank. Control the hydraulic cylinder to extend, so that the piston moves upward. Thus, the biodiesel raw material in the circulation tank flows back to the kettle body through the connecting pipe, realizing a single cycle. After a single cycle, there is no biodiesel raw material residue in the circulation tank. Therefore, it is convenient to visually judge the number of cycles of the biodiesel raw material, without blindly increasing the time to make the biodiesel raw material contact with the immobilized enzyme, reducing energy consumption and improving efficiency.

[0012] 2. When there is biodiesel raw material in the circulation tank, make the nitrogen gas in the nitrogen gas tank pass through the nitrogen gas pipe into the circulation tank. The introduced nitrogen gas takes away part of the water and methanol in the biodiesel raw material. Reducing the moisture in the reaction system is beneficial to the forward progress of the reaction, reducing the acid value. After controlling the solenoid valve to open, it is realized to supplement methanol in real time according to the methanol residue amount in the reaction materials during production. Description of the Drawings

[0013] By reading the detailed description of the non-restrictive embodiments with reference to the following drawings, other features, purposes and advantages of the present utility model will become more obvious:

[0014] Figure 1 This is a schematic structural diagram of a biodiesel reactor using enzymatic method of the present utility model;

[0015] Figure 2 This is an assembly schematic diagram of the wire mesh woven container and the kettle body in a biodiesel reactor using enzymatic method of the present utility model;

[0016] Figure 3 This is an assembly schematic diagram of the piston, hydraulic cylinder and circulation tank in a biodiesel reactor using enzymatic method of the present utility model;

[0017] In the figure: 1 - kettle body, 2 - kettle cover, 3 - methanol storage tank, 4 - solenoid valve, 5 - connecting pipe, 6 - nitrogen pipe, 7 - support sleeve, 8 - condensate outlet pipe, 9 - branch pipe, 10 - drain valve, 11 - recovery tank, 12 - hydraulic cylinder, 13 - circulation tank, 14 - check valve, 15 - tank cover, 16 - immobilized enzyme, 17 - support rod, 18 - wire mesh woven container, 19 - air outlet hole, 20 - sealing sleeve, 21 - piston. Specific embodiments

[0018] In order to make the technical means, creative features, achieved purposes and effects of the present utility model easy to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0019] Please refer to Figure 1 and Figure 2 , the present utility model provides a technical solution: a biodiesel reactor using enzymatic method, including a kettle body 1, a detachable kettle cover 2 is installed at the upper end of the kettle body 1, a plurality of wire mesh woven containers 18 are arranged in the kettle body 1 from top to bottom, immobilized enzymes 16 are filled in the wire mesh woven containers 18, a plurality of vertically arranged support rods 17 are installed at the bottom of the wire mesh woven containers 18, the support rods 17 on the upper wire mesh woven container 18 are in contact with the lower wire mesh woven container 18, the mesh holes of the wire mesh woven containers 18 are smaller than the diameter of the immobilized enzymes 16, and under the support of the support rods 17, a gap is generated between adjacent two layers of wire mesh woven containers 18.

[0020] Refer to Figure 1 , Figure 2 and Figure 3, a one-way valve 14 is installed at the bottom of the kettle body 1. The one-way valve 14 conducts in the direction away from the kettle body 1. The one-way valve 14 is installed at the upper end of the circulation tank 13. A detachable tank cover 15 is installed at the upper end of the circulation tank 13. A connecting pipe 5 is installed on the outer surface of the upper end of the circulation tank 13. The other end of the connecting pipe 5 is installed on the outer surface of the upper end of the kettle body 1. A piston 21 is slidably installed in the circulation tank 13. A vertically arranged hydraulic cylinder 12 is installed at the bottom of the circulation tank 13. The movable end of the hydraulic cylinder 12 extends into the circulation tank 13 and is fixedly connected to the piston 21. A perforation is provided at the bottom of the circulation tank 13. The movable end of the hydraulic cylinder 12 penetrates through the perforation. A Z-shaped condensation exhaust pipe 8 for connecting the tail gas treatment equipment is installed on the outer surface of the upper end of the circulation tank 13. A branch pipe 9 is installed on the outer surface of the lowest part of the condensation exhaust pipe 8. The lower end of the branch pipe 9 is connected and communicated with the recovery tank 11. A drain pipe is installed on the outer surface of the lower end of the recovery tank 11. The other end of the drain pipe is installed with a drain valve 10. Control the hydraulic cylinder 12 to contract. Then the hydraulic cylinder 12 drives the piston 21 to move downward in the circulation tank 13. At this time, the one-way valve 14 is opened. Thus, the biodiesel raw material in the kettle body 1 flows into the circulation tank 13. Control the hydraulic cylinder 12 to extend, so that the piston 21 moves upward. Thus, the biodiesel raw material in the circulation tank 13 flows back into the kettle body 1 through the connecting pipe 5, realizing a single cycle. After a single cycle, there is no biodiesel raw material residue in the circulation tank 13. Therefore, it is convenient to intuitively judge the number of cycles of the biodiesel raw material, without blindly increasing the time to make the biodiesel raw material contact with the immobilized enzyme 16, reducing energy consumption and improving efficiency.

[0021] Refer to Figure 1 and Figure 3 , a nitrogen pipe 6 connected to a nitrogen storage tank through a hose is installed on the upper surface of the piston 21. A guiding hole is provided in the middle position of the upper surface of the tank cover 15. The nitrogen pipe 6 penetrates through the guiding hole. A support sleeve 7 is provided directly above the guiding hole. The support sleeve 7 is fixedly connected to the tank cover 15. A sealing sleeve 20 is adhered in the support sleeve 7. The sealing sleeve 20 wraps around the nitrogen pipe 6. A plurality of air outlet holes 19 are evenly provided on the outer surface of the nitrogen pipe 6. The sealing sleeve 20 improves the sealing performance between the nitrogen tank and the guiding hole. An electromagnetic valve 4 is installed at the upper part of the outer surface of the connecting pipe 5. The electromagnetic valve 4 is installed at the bottom of the methanol storage tank 3. When there is biodiesel raw material in the circulation tank 13, the nitrogen in the nitrogen tank is introduced into the circulation tank 13 through the nitrogen pipe 6. The introduced nitrogen takes away part of the water and methanol in the biodiesel raw material. Reducing the moisture in the reaction system is beneficial to the forward progress of the reaction and reduces the acid value. After controlling the electromagnetic valve 4 to open, methanol can be replenished in real time according to the methanol residue in the reaction materials during production.

[0022] Although this specification is described in terms of embodiments, not every embodiment contains only an independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An enzymatic biodiesel reactor, comprising a kettle body (1), characterized in that: A detachable kettle cover (2) is installed at the upper end of the kettle body (1). A plurality of immobilized enzyme (16) filling sections are installed equidistantly from top to bottom inside the kettle body (1). A one-way valve (14) is installed at the bottom of the kettle body (1), and the one-way valve (14) conducts in the direction away from the kettle body (1). The one-way valve (14) is installed at the upper end of the circulation tank (13). A detachable tank cover (15) is installed at the upper end of the circulation tank (13). A connecting pipe (5) is installed on the outer surface of the upper end of the circulation tank (13), and the other end of the connecting pipe (5) is installed on the outer surface of the upper end of the kettle body (1). A piston (21) is slidably installed inside the circulation tank (13). A vertically arranged hydraulic cylinder (12) is installed at the bottom of the circulation tank (13), and the movable end of the hydraulic cylinder (12) extends into the circulation tank (13) and is fixedly connected to the piston (21). A Z-shaped condensation exhaust pipe (8) for connecting to the tail gas treatment equipment is installed on the outer surface of the upper end of the circulation tank (13). A branch pipe (9) is installed on the outer surface of the lowest position of the condensation exhaust pipe (8), and the lower end of the branch pipe (9) is communicated with the recovery tank (11).

2. The enzymatic biodiesel reactor according to claim 1, wherein: A nitrogen pipe (6) connected to a nitrogen storage tank through a hose is installed on the upper surface of the piston (21). A guide hole is opened in the middle position of the upper surface of the tank cover (15), and the nitrogen pipe (6) passes through the guide hole. A support sleeve (7) is provided directly above the guide hole, and the support sleeve (7) is fixedly connected to the tank cover (15). A sealing sleeve (20) is adhered inside the support sleeve (7), and the sealing sleeve (20) wraps around the nitrogen pipe (6). A plurality of air outlet holes (19) are evenly opened on the outer surface of the nitrogen pipe (6).

3. The enzymatic biodiesel reactor according to claim 1, wherein: An electromagnetic valve (4) is installed at the upper position of the outer surface of the connecting pipe (5), and the electromagnetic valve (4) is installed at the bottom of the methanol storage tank (3).

4. The enzymatic biodiesel reactor according to claim 1, wherein: The immobilized enzyme (16) filling section includes a wire mesh woven container (18). A plurality of wire mesh woven containers (18) are provided from top to bottom inside the kettle body (1). The wire mesh woven container (18) is filled with immobilized enzyme (16). A plurality of vertically arranged support rods (17) are installed at the bottom of the wire mesh woven container (18), and the support rods (17) on the upper layer of the wire mesh woven container (18) are in contact with the lower layer of the wire mesh woven container (18). The mesh holes of the wire mesh woven container (18) are smaller than the diameter of the immobilized enzyme (16).

5. An enzymatic biodiesel reactor according to claim 1, characterized in that: A drain pipe is installed on the outer surface of the lower end of the recovery tank (11), and a drain valve (10) is installed at the other end of the drain pipe.

6. The enzymatic biodiesel reactor according to claim 1, wherein: A perforation is opened at the bottom of the circulation tank (13), and the movable end of the hydraulic cylinder (12) passes through the perforation.

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