Enzyme reaction tank for biodiesel production

Abstract

The utility model discloses an enzyme reaction tank for biodiesel production, which solves the technical problem that when the heating and cooling of the existing enzyme reaction tank are carried out in different time periods, the enzyme in the enzyme reaction tank is inactivated due to excessive heating or the enzyme activity in the enzyme reaction tank is reduced due to excessive cooling. The device comprises a supporting mechanism, a tank body arranged on the supporting mechanism, and a cooling mechanism and a heating mechanism which are arranged on the tank body, the cooling mechanism comprises a spiral coil which is arranged in the tank body and clings to the inner wall of the tank body, and a water inlet pipe and a water outlet pipe which are arranged on the tank body and are respectively communicated with the spiral coil, and the water inlet pipe is communicated with an external cold water source. The heating interlayer and the spiral coil pipe are simultaneously arranged on the tank body, hot water is contained in the heating interlayer, cold water is contained in the spiral coil pipe, and the hot water in the heating interlayer and the cold water in the spiral coil pipe interact at the same time to dynamically adjust the temperature of the tank body, so that the temperature of the tank body is proper, and enzyme inactivation or activity reduction in the tank body can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of biodiesel production, and particularly relates to an enzyme reaction tank for biodiesel production. Background Art

[0002] Waste oil generally refers to various inferior oils in life, and its main component is triglyceride. It has a wide source and is relatively sufficient. It is a kind of raw material for biodiesel production. Using waste oil as a raw material to produce biodiesel can avoid environmental pollution and resource waste caused by direct discharge of waste oil, and at the same time can create economic benefits. The principle of using waste oil to produce biodiesel is as follows: after pretreating waste oil to remove impurities, the main component triglyceride in waste oil and methanol carry out transesterification reaction under the action of a catalyst to generate fatty acid methyl ester (biodiesel) and glycerol. At present, acid catalysts such as sulfuric acid and phosphoric acid are often used in the biodiesel production process. The defect is that such catalysts cause acidic wastewater to be generated during the biodiesel production process. The acidic wastewater cannot be directly discharged and needs to be deacidified before being discharged. In this way, the enterprise investment is increased and the economic benefit of the biodiesel finished product is reduced.

[0003] Using enzymatic catalysis can solve the technical defects of acid catalysts. When using the enzymatic catalysis method to catalytically convert waste oil into biodiesel, an enzyme reaction tank is often used as a reaction container. There is an interlayer on the existing enzyme reaction tank. When hot water is filled in the interlayer, it can be used to heat and keep warm the enzyme reaction tank. When cold water is filled in the interlayer, it can be used to cool the enzyme reaction tank. The technical defect is that there is only one water flow channel, namely the interlayer, on the existing enzyme reaction tank. The heating and cooling of the enzyme reaction tank can only be carried out in different time periods. When heating or cooling the enzyme reaction tank, excessive heating will cause the enzyme in the enzyme reaction tank to inactivate, and excessive cooling will reduce the enzyme activity in the enzyme reaction tank. Content of the Utility Model

[0004] The technical problem to be solved by the utility model is to provide an enzyme reaction tank for biodiesel production, and solve the technical problem that when the heating and cooling of the existing enzyme reaction tank are carried out in different time periods, the enzyme in the enzyme reaction tank is easily inactivated due to excessive heating or the enzyme activity in the enzyme reaction tank is reduced due to excessive cooling.

[0005] To achieve the above object, the technical scheme adopted by the utility model is as follows:

[0006] An enzyme reaction tank for biodiesel production, comprising a support mechanism, a tank body (1) arranged on the support mechanism, and a cooling mechanism and a heating mechanism arranged on the tank body; the cooling mechanism includes a spiral coil pipe arranged in the tank body and distributed closely against the inner wall of the tank body, and a water inlet pipe and a water outlet pipe arranged on the tank body and respectively communicated with the spiral coil pipe, and the water inlet pipe is connected to an external cold water source.

[0007] Further, the heating mechanism includes a heating interlayer provided on the tank body, and water inlet through holes and water outlet through holes are formed in the tank body and are respectively communicated with the heating interlayer.

[0008] Further, a retaining ring is provided on the inner wall of the tank body, and the spiral coiled pipe is provided on the retaining ring.

[0009] Further, a driving motor is provided at the top inside the tank body. A stirring shaft is connected to the driving shaft of the driving motor. The stirring shaft passes through the spiral coiled pipe and the retaining ring and extends to the bottom inside the tank body. A plurality of stirring blades are provided on the stirring shaft.

[0010] Further, a circular support plate is embedded at the top inside the tank body, and the driving motor is installed on the support plate.

[0011] Further, an annular embedding groove adapted to the support plate is formed on the side wall of the tank body. An embedding wing plate adapted to the embedding groove is provided on the outer edge of the support plate, and the embedding wing plate is embedded in the embedding groove.

[0012] Further, a tank cover is connected to the top of the tank body. A placement cavity is formed between the tank cover and the support plate. A blower is provided in the placement cavity. An air inlet and an air outlet adapted to the blower are provided on the tank cover.

[0013] Further, a material input pipe, an exhaust gas discharge pipe, and a methanol addition pipe are connected to the tank cover and respectively pass through the support plate and extend into the inner cavity of the tank body. A three-way pipe communicated with the inner cavity of the tank body is provided at the bottom of the tank body, and an overflow outlet pipe communicated with the inner cavity of the tank body is provided on the side top wall of the tank body.

[0014] Further, an annular embedding groove is formed at the top of the tank wall of the tank body. A plugging rib ring adapted to the annular embedding groove is provided at the bottom of the tank cover. The plugging rib ring is plugged into the annular embedding groove, and the top surface of the tank wall of the tank body is hermetically attached to the bottom surface of the tank cover.

[0015] Further, the support mechanism includes a support ring circumferentially surrounding the outer wall of the tank body, a support ring plate embedded on the support ring, and three support rods provided on the support ring plate; an embedding groove is formed on the support ring. The support ring plate is circumferentially distributed around the outer wall of the tank body. A convex rib adapted to the embedding groove is provided on the support ring plate, and the three support rods are evenly distributed around the tank body.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] The utility model has a simple structure, is scientifically and reasonably designed, and is convenient to use. The utility model is provided with both a heating interlayer and a spiral coiled pipe on the tank body. Hot water is contained in the heating interlayer, and cold water is contained in the spiral coiled pipe. At the same time, the hot water in the heating interlayer and the cold water in the spiral coiled pipe act on each other to dynamically adjust the temperature of the tank body, so that the temperature of the tank body is appropriate, and the inactivation or reduction of the enzyme activity in the tank body can be avoided. Description of the Drawings

[0018] Figure 1 This is a schematic structural view of the present utility model.

[0019] Figure 2 This is a top view of the support ring plate.

[0020] Figure 3 This is a bottom view of the support ring.

[0021] Figure 4 This is a top view of the embedding groove on the tank body.

[0022] Figure 5 This is a bottom view of the embedding wing plate on the support plate.

[0023] Figure 6 This is a top view of the retaining ring.

[0024] Figure 7 This is a schematic view of the three-way pipe.

[0025] Among them, the names corresponding to the reference numerals are:

[0026] 1 - tank body, 2 - heating interlayer, 4 - water inlet through hole, 5 - water outlet through hole, 6 - spiral coiled pipe, 7 - water inlet pipe, 8 - water outlet pipe, 9 - retaining ring, 10 - drive motor, 11 - stirring shaft, 12 - stirring paddle, 13 - support plate, 14 - embedding groove, 15 - embedding wing plate, 16 - tank cover, 17 - storage cavity, 18 - fan, 19 - air inlet, 20 - air outlet, 22 - material input pipe, 23 - waste gas exhaust pipe, 24 - methanol addition pipe, 25 - overflow outlet pipe, 26 - annular embedding groove, 27 - plugging rib ring, 28 - three-way pipe, 29 - support ring, 30 - support rod, 31 - support ring plate, 32 - convex rib, 33 - embedding groove, 34 - first flow section, 35 - second flow section, 36 - upper port, 37 - left port, 38 - right port, 39 - backing plate, 40 - gripping teeth. Specific embodiments

[0027] In order to make the purpose, technical solutions and advantages of the present utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0028] In the description of the present utility model, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model. In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0029] In the description of the present utility model, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", "coupling" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; of course, it can also be a mechanical connection or an electrical connection; in addition, it can also be a direct connection or an indirect connection through an intermediate medium, or it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] As Figures 1-7 shown, a biodiesel production enzyme reaction tank provided by the present utility model has a simple structure, is scientifically and reasonably designed, and is convenient to use. It solves the technical problem that when the existing enzyme reaction tank is heated and cooled in different time periods, the enzyme in the enzyme reaction tank is easily inactivated due to overheating or the enzyme activity in the enzyme reaction tank is reduced due to excessive cooling. In the present utility model, a heating jacket and a spiral coil are simultaneously provided on the tank body. Hot water is contained in the heating jacket, and cold water is contained in the spiral coil. At the same moment, the hot water in the heating jacket and the cold water in the spiral coil act on each other to dynamically adjust the temperature of the tank body, making the temperature of the tank body suitable and avoiding the inactivation or reduction of the enzyme activity in the tank body.

[0031] The present utility model includes a support mechanism, a tank body 1 provided on the support mechanism, and a cooling mechanism and a heating mechanism provided on the tank body 1; the cooling mechanism includes a spiral coil 6 provided inside the tank body 1 and closely attached to the inner wall of the tank body 1, and a water inlet pipe 7 and a water outlet pipe 8 provided on the tank body 1 and respectively communicating with the spiral coil 6. The water inlet pipe 7 is connected to an external cold water source. A water pump is provided on the water inlet pipe 7 for inputting external cold water into the spiral coil 6. The cold water cools the reactants in the tank body 1 in the spiral coil 6 and then becomes hot water, and the hot water flows out of the spiral coil 6 through the water outlet pipe 8.

[0032] The heating mechanism of the present utility model includes a heating interlayer 2 provided on the tank body 1. An inlet water through-hole 4 and an outlet water through-hole 5 are opened on the tank body 1 and are respectively communicated with the heating interlayer 2. The heating interlayer 2 includes a first flow section 34 that is circumferentially opened on the side wall of the tank body 1 and is annular, and a second flow section 35 that is communicated with the first flow section 34 and is arc-shaped. The second flow section 35 is located at the bottom of the tank body 1. The inlet water through-hole 4 is communicated with an external hot water source and is used to input external hot water into the heating interlayer 2. The hot water heats or keeps warm the reactants in the tank body within the heating interlayer 2. The second flow section 35 is arc-shaped, so that it is beneficial for the hot water to flow within the second flow section.

[0033] An anti-ring 9 is provided on the inner wall of the tank body 1 of the present utility model, and a spiral coil pipe 6 is provided on the anti-ring 9. A driving motor 10 is provided at the top inside the tank body 1. A stirring shaft 11 is connected to the driving shaft of the driving motor 10. The stirring shaft 11 passes through the spiral coil pipe 6 and the anti-ring 9 and extends into the bottom inside the tank body 1. A plurality of stirring blades 12 are provided on the stirring shaft 11. A circular support plate 13 is embedded at the top inside the tank body 1, and the driving motor 10 is provided on the support plate 13. An embedding groove 14 that is adapted to the support plate 13 and is annular is opened on the side wall of the tank body 1. An embedding wing plate 15 that is adapted to the embedding groove 14 is provided on the outer edge of the support plate 13, and the embedding wing plate 15 is embedded in the embedding groove 14. The driving motor 10 drives the stirring shaft 11 and the stirring blades 12 to rotate. In this way, the reactants in the tank body can be evenly mixed with the enzyme, which is beneficial for the reactants in the tank body to fully react. The reactants in the tank body mainly include waste oil and methanol, and an enzyme is contained in the tank body. The waste oil and methanol undergo a transesterification reaction under the catalysis of the enzyme to generate biodiesel and glycerol.

[0034] The top of the tank body 1 of the present utility model is covered and connected with a tank cover 16. A storage cavity 17 is formed between the tank cover 16 and the support plate 13. A blower 18 is provided in the storage cavity 17. An air inlet 19 and an air outlet 20 that are adapted to the blower 18 are provided on the tank cover 16. An annular embedding groove 26 is opened at the top of the tank wall of the tank body 1. A plugging edge ring 27 that is adapted to the annular embedding groove 26 is provided at the bottom of the tank cover 16. The plugging edge ring 27 is plugged into the annular embedding groove 26, and the top surface of the tank wall of the tank body 1 is hermetically attached to the bottom surface of the tank cover 16.

[0035] The blower 18 is used to strengthen the ventilation in the storage cavity 17, avoid the accumulation of heat around the driving motor 10, and is beneficial for the normal operation of the driving motor 10.

[0036] A material input pipe 22, an exhaust gas discharge pipe 23, and a methanol addition pipe 24 that respectively pass through the support plate 13 and extend into the inner cavity of the tank body 1 are connected to the tank cover 16 of the present utility model. A three-way pipe 28 that is communicated with the inner cavity of the tank body 1 is provided at the bottom of the tank body 1. An overflow outlet pipe 25 that is communicated with the inner cavity of the tank body 1 is provided on the side top wall of the tank body 1.

[0037] In actual application, the utility model can be used in multiple series. When the utility model is used in multiple series, the material input pipe 22 is connected to the tank body at the upper level, and is used to input the mixture in the tank body of the upper level into the tank body of this level for further reaction, and the overflow connection pipe 25 is connected to the tank body at the lower level, and is used to connect the mixture overflowing from the top of the tank body of this level to the tank body of the lower level for further reaction. Among them, the mixture components mainly include waste oil, methanol, biodiesel and glycerol, and the exhaust gas external discharge pipe 23 is connected to the external recovery tank, and is used to discharge the methanol waste gas generated in the tank body 1 into the recovery tank. The methanol addition pipe 24 is connected to the external methanol source, and is used to input the external methanol source into the tank body 1, so that the waste oil in the tank body 1 is fully converted.

[0038] The tee pipe 28 is provided with an upper port 36, a left port 37 and a right port 38. When a plurality of the present invention are used in series, the upper port 36 on the tee pipe 28 is connected to the inner cavity of the tank body, the left port 37 on the tee pipe 28 is used to guide the mixture overflowing from the top of the tank body at the previous stage into the tank body at this stage for further reaction, and the right port 38 on the tee pipe 28 is used to transport the mixture in the tank body at this stage to the tank body at the next stage for further reaction.

[0039] When the utility model is used alone, the overflow outlet pipe 25 and the left port 37 on the three-way pipe 28 are both in a closed state. At this time, the material input pipe 22 is connected to the external raw material source, and is used to input the external processed mixed raw materials into the tank body 1. The upper port 36 on the three-way pipe 28 is connected to the inner cavity of the tank body, and the right port 38 on the three-way pipe 28 is used to directly discharge the reacted mixture in the tank body.

[0040] The support mechanism of the utility model comprises a support ring 29 arranged around the outer wall of the tank body 1, a support ring plate 31 embedded on the support ring 29, and three support rods 30 arranged on the support ring plate 31; an embedding groove 33 is provided on the support ring 29, the support ring plate 31 is distributed around the outer wall of the tank body 1, a convex ridge 32 matching the embedding groove 33 is provided on the support ring plate 31, and three support rods 30 are evenly distributed around the tank body 1. A pad 39 is provided at the bottom of the support rod 30, and a plurality of gripping teeth 40 are evenly distributed at the bottom of the pad 39, so that the support rod can grip the ground more firmly.

[0041] The driving motor 10 is a servo motor.

[0042] The drive motor 10 and the fan 18 used in the present invention are both existing known electrical equipment and can be directly purchased and used on the market. The structure and control principle of the drive motor 10 and the fan 18 are both existing known technologies. Therefore, the structure and control principle of the drive motor 10 and the fan 18 are not described in detail here.

[0043] Finally, it should be noted that the above embodiments are only preferred embodiments of the present utility model to illustrate the technical solutions of the present utility model, rather than limiting it, and certainly not limiting the patent scope of the present utility model; Although the present utility model has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions recorded in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; And these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the various embodiments of the present utility model; That is to say, any meaningless changes or touch-ups made in the main design concept and spirit of the present utility model, and the technical problems solved by them are still the same as those of the present utility model, should all be included within the protection scope of the present utility model; In addition, directly or indirectly applying the technical solutions of the present utility model to other related technical fields shall similarly be included within the patent protection scope of the present utility model.

Claims

1. An enzyme reaction tank for biodiesel production, characterized in that, It includes a support mechanism, a tank body (1) arranged on the support mechanism, and a cooling mechanism and a heating mechanism arranged on the tank body (1); the cooling mechanism includes a spiral coil pipe (6) arranged inside the tank body (1) and distributed closely along the inner wall of the tank body (1), and a water inlet pipe (7) and a water outlet pipe (8) arranged on the tank body (1) and respectively communicated with the spiral coil pipe (6), and the water inlet pipe (7) is connected to an external cold water source.

2. The enzymatic reaction tank for biodiesel production according to claim 1, characterized in that The heating mechanism includes a heating interlayer (2) arranged on the tank body (1), and a water inlet through hole (4) and a water outlet through hole (5) are arranged on the tank body (1) and respectively communicated with the heating interlayer (2).

3. A biodiesel production enzyme reaction tank according to claim 1, characterized in that, A retaining ring (9) is arranged on the inner wall of the tank body (1), and the spiral coil pipe (6) is arranged on the retaining ring (9).

4. A biodiesel production enzyme reaction tank according to claim 3, characterized in that, A driving motor (10) is arranged at the top inside the tank body (1), a stirring shaft (11) is connected to the driving shaft of the driving motor (10), the stirring shaft (11) passes through the spiral coil pipe (6) and the retaining ring (9) and extends to the bottom inside the tank body (1), and a plurality of stirring blades (12) are arranged on the stirring shaft (11).

5. A biodiesel production enzyme reaction tank according to claim 4, characterized in that, A circular support plate (13) is embedded at the top inside the tank body (1), and the driving motor (10) is installed on the support plate (13).

6. The enzymatic reaction tank for biodiesel production according to claim 5, characterized in that, An annular embedding groove (14) adapted to the support plate (13) is arranged on the side wall of the tank body (1), an embedding wing plate (15) adapted to the embedding groove (14) is arranged on the outer edge of the support plate (13), and the embedding wing plate (15) is embedded in the embedding groove (14).

7. The enzymatic reaction tank for biodiesel production according to claim 5, characterized in that, A tank cover (16) is connected to the top of the tank body (1), a storage cavity (17) is formed between the tank cover (16) and the support plate (13), a blower (18) is arranged in the storage cavity (17), and an air inlet (19) and an air outlet (20) adapted to the blower (18) are arranged on the tank cover (16).

8. The enzymatic reaction tank for biodiesel production according to claim 7, characterized in that, A material input pipe (22), an exhaust gas discharge pipe (23) and a methanol addition pipe (24) which respectively pass through the support plate (13) and extend into the inner cavity of the tank body (1) are connected to the tank cover (16), a three-way pipe (28) communicated with the inner cavity of the tank body (1) is arranged at the bottom of the tank body (1), and an overflow outlet pipe (25) communicated with the inner cavity of the tank body (1) is arranged on the side top wall of the tank body (1).

9. The enzyme reaction tank for biodiesel production according to claim 7, characterized in that, An annular embedding groove (26) is arranged at the top of the tank wall of the tank body (1), a plugging rib ring (27) adapted to the annular embedding groove (26) is arranged at the bottom of the tank cover (16), the plugging rib ring (27) is plugged in the annular embedding groove (26), and the top surface of the tank wall of the tank body (1) is hermetically attached to the bottom surface of the tank cover (16).

10. A biodiesel production enzyme reaction tank according to claim 1, characterized in that, The support mechanism includes a support ring (29) arranged around the outer wall of the tank body (1) in a circumferential direction, a support ring plate (31) embedded on the support ring (29), and three support rods (30) arranged on the support ring plate (31); an embedding groove (33) is arranged on the support ring (29), the support ring plate (31) is distributed around the outer wall of the tank body (1) in a circumferential direction, a convex rib (32) adapted to the embedding groove (33) is arranged on the support ring plate (31), and the three support rods (30) are evenly distributed around the tank body (1).

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