Formaldehyde oxidation reaction device

Abstract

The utility model discloses a formaldehyde oxidation reaction device, which relates to the field of formaldehyde and comprises a reaction tank, a copper pipe component is fixedly arranged on the inner wall of the reaction tank, electric heating plates are fixedly arranged on the periphery of the inner wall of the reaction tank, and a cooling liquid tank is fixedly arranged at the bottom of the reaction tank. In consideration of the problem of slow cooling of formaldehyde gas, cooling liquid is injected into the cooling liquid tank, the circulating water pump is turned on, the cooling liquid is pumped out through the liquid inlet pipe, conveyed into the upper ring copper pipe through the liquid conveying pipe and then conveyed into the heat conduction copper pipe, and the cooling liquid absorbs heat in the reaction tank, so that the formaldehyde gas can be quickly cooled and condensed; the cooling liquid flows back into the cooling liquid box through the lower ring copper pipe and the backflow pipe, the cooling fan is turned on, heat of the cooling liquid is rapidly discharged, the cooling liquid is rapidly cooled, recycling is facilitated, the effect of rapidly cooling high-temperature formaldehyde gas is achieved, and the working efficiency of formaldehyde solution preparation is improved.

Description

Technical Field

[0001] The utility model relates to the field of formaldehyde, in particular to a formaldehyde oxidation reaction device. Background Art

[0002] Formaldehyde is widely used in petrochemical, biochemical, energy, transportation and other industries. It can be used as a disinfectant and preservative, and can also be used to prepare phenolic resin, urea-formaldehyde resin and other products. The process of formaldehyde is mainly in the reactor. After the temperature of methanol, air and water vapor is raised, methanol undergoes oxidation and dehydrogenation reaction under the action of silver catalyst to generate high-temperature formaldehyde gas, and then the high-temperature formaldehyde gas is cooled to below 100°C to obtain formaldehyde solution.

[0003] The traditional formaldehyde oxidation reaction device is not convenient for rapidly cooling the formaldehyde gas after obtaining the high-temperature formaldehyde gas, and the preparation of the formaldehyde solution takes a long time, which affects the preparation efficiency of the formaldehyde solution. Utility Model Content

[0004] The utility model aims to provide a formaldehyde oxidation reaction device to solve the problems in the above background technology that it is inconvenient to quickly cool the formaldehyde gas, the preparation of the formaldehyde solution takes a long time, and the preparation efficiency of the formaldehyde solution is affected.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a formaldehyde oxidation reaction device, comprising a reaction tank, the inner wall of which is fixedly provided with a copper tube assembly, electric heating plates are fixedly provided around the inner wall of the reaction tank, a coolant tank is fixedly provided at the bottom of the reaction tank, a heat dissipation mechanism is fixedly provided on the top surface of the coolant tank, and a circulating water pump is fixedly installed on one side of the coolant tank.

[0006] Preferably, the copper tube assembly includes an upper copper tube ring fixedly arranged on the inner wall of the reaction tank, a heat-conducting copper tube is penetrated through the surface of the upper copper tube ring, and a lower copper tube ring is penetrated through the bottom of the heat-conducting copper tube. The circulating water pump transports the coolant into the upper copper tube ring and then into the heat-conducting copper tube. The coolant absorbs the heat inside the reaction tank and then flows back to the coolant tank through the lower copper tube ring and the reflux pipe.

[0007] Preferably, a reflux pipe is provided through one end of the lower ring copper tube, and one end of the reflux pipe is provided through the interior of the coolant tank, and the reflux pipe is used to return the coolant inside the copper tube assembly to the interior of the coolant tank.

[0008] Preferably, an inlet pipe is provided at the input end of the circulating water pump, one end of which is provided inside the coolant tank, and a liquid infusion pipe is provided at the output end of the circulating water pump, one end of which is provided inside the upper ring copper tube. The circulating water pump draws the coolant from the coolant tank through the inlet pipe, and then transports it to the copper tube assembly through the liquid infusion pipe.

[0009] Preferably, the heat dissipation mechanism includes a cooling fan fixedly arranged on the top surface of the coolant tank, and a dustproof net is fixedly installed on the top of the cooling fan. The number of the cooling mechanisms is four groups, and the four groups of cooling mechanisms are distributed in a rectangular array. When the cooling fan is turned on, the heat inside the coolant tank is quickly discharged, so that the coolant tank is cooled quickly, and the dustproof net protects the cooling fan from dust.

[0010] Preferably, the surface of the reaction tank is covered with a rock wool sleeve, and the surface of the rock wool sleeve is covered with a polyphenylene sleeve. The rock wool sleeve and the polyphenylene sleeve insulate the reaction tank and reduce heat loss.

[0011] Preferably, the electric heating plate is electrically connected to a temperature controller, and the temperature controller is fixedly mounted on the surface of the polystyrene sleeve. A tank cover is movably provided on the top surface of the reaction tank, and a knob is fixedly mounted on the top of the tank cover, which facilitates opening and closing the tank cover. The temperature controller is used to control the heating temperature of the electric heating plate.

[0012] Technical effects and advantages of the utility model:

[0013] Taking into account the problem of slow cooling of formaldehyde gas, coolant is injected into the coolant tank, the circulating water pump is turned on, the coolant is pumped out through the liquid inlet pipe, and transported to the upper ring copper tube through the infusion tube, and then transported to the heat-conducting copper tube. The coolant absorbs the heat inside the reaction tank, so that the formaldehyde gas can be quickly cooled and condensed. The coolant flows back to the coolant tank through the lower ring copper tube and the reflux pipe, and the cooling fan is turned on to quickly discharge the heat of the coolant, so that the coolant is quickly cooled and easy to recycle, thereby achieving the effect of quickly cooling the high-temperature formaldehyde gas and improving the work efficiency of preparing the formaldehyde solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 The utility model is a schematic diagram of the overall structure of a formaldehyde oxidation reaction device.

[0016] Figure 2 The utility model is a schematic diagram of the heat dissipation mechanism of a formaldehyde oxidation reaction device.

[0017] Figure 3 The utility model is a schematic diagram of the structure of a copper tube component of a formaldehyde oxidation reaction device.

[0018] Figure 4 The utility model is a schematic diagram of the electric heating plate structure of a formaldehyde oxidation reaction device.

[0019] Figure 5 The utility model is a schematic diagram of the structure of a rock wool sleeve and a polyphenyl sleeve of a formaldehyde oxidation reaction device.

[0020] In the figure: 1. reaction tank; 2. copper tube assembly; 201. upper ring copper tube; 202. heat-conducting copper tube; 203. lower ring copper tube; 3. electric heating plate; 4. coolant tank; 5. heat dissipation mechanism; 501. cooling fan; 502. dustproof net; 6. circulating water pump; 7. reflux pipe; 8. liquid inlet pipe; 9. liquid infusion pipe; 10. rock wool sleeve; 11. polystyrene sleeve; 12. temperature controller; 13. tank cover. DETAILED DESCRIPTION

[0021] In order to make the purpose, technical scheme and advantages of the embodiments of the utility model clearer, the technical scheme in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model claimed for protection, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0022] The utility model provides Figure 1-5 A formaldehyde oxidation reaction device is shown, comprising a reaction tank 1, a copper tube assembly 2 is fixedly arranged on the inner wall of the reaction tank 1, electric heating plates 3 are fixedly arranged around the inner wall of the reaction tank 1, a coolant tank 4 is fixedly arranged at the bottom of the reaction tank 1, a heat dissipation mechanism 5 is fixedly arranged on the top surface of the coolant tank 4, and a circulating water pump 6 is fixedly installed on one side of the coolant tank 4;

[0023] Through the arrangement of the copper tube assembly 2 and the heat dissipation mechanism 5, the coolant is injected into the coolant tank 4, the circulating water pump 6 is turned on, the coolant is extracted through the liquid inlet pipe 8, and is transported to the upper ring copper tube 201 through the liquid infusion pipe 9, and then transported to the heat-conducting copper tube 202. The coolant absorbs the heat inside the reaction tank 1, so that the formaldehyde gas can be quickly cooled and condensed. The coolant flows back to the coolant tank 4 through the lower ring copper tube 203 and the reflux pipe 7, and the heat dissipation fan 501 is turned on to quickly discharge the heat of the coolant, so that the coolant is quickly cooled and easy to be recycled, thereby achieving the effect of quickly cooling the high-temperature formaldehyde gas and improving the work efficiency of preparing the formaldehyde solution.

[0024] The copper tube assembly 2 includes an upper ring copper tube 201 fixedly arranged on the inner wall of the reaction tank 1, a heat-conducting copper tube 202 is penetrated through the surface of the upper ring copper tube 201, and a lower ring copper tube 203 is penetrated through the bottom of the heat-conducting copper tube 202.

[0025] Through the setting of the copper tube assembly 2, the infusion tube 9 transports the coolant to the upper ring copper tube 201 and then to the heat-conducting copper tube 202. The coolant absorbs the heat inside the reaction tank 1, so that the formaldehyde gas can be quickly cooled and condensed.

[0026] A return pipe 7 is provided at one end of the lower ring copper tube 203, and one end of the return pipe 7 is provided inside the coolant tank 4.

[0027] The reflux pipe 7 is provided to return the coolant to the coolant tank 4 .

[0028] The input end of the circulating water pump 6 is provided with a liquid inlet pipe 8, one end of which is provided inside the coolant tank 4, and the output end of the circulating water pump 6 is provided with a liquid infusion pipe 9, one end of which is provided inside the upper ring copper tube 201.

[0029] By setting the circulating water pump 6, the coolant is injected into the coolant tank 4, the circulating water pump 6 is turned on, the coolant is extracted through the liquid inlet pipe 8, and transported to the upper ring copper tube 201 through the liquid infusion pipe 9, and then transported to the heat-conducting copper tube 202.

[0030] The heat dissipation mechanism 5 includes a heat dissipation fan 501 fixedly arranged on the top surface of the coolant tank 4, and a dustproof net 502 is fixedly installed on the top of the heat dissipation fan 501. The number of heat dissipation mechanisms 5 is four groups, and the four groups of heat dissipation mechanisms 5 are distributed in a rectangular array.

[0031] By setting the heat dissipation mechanism 5, the coolant flows back to the coolant tank 4 through the lower ring copper tube 203 and the reflux pipe 7, and the heat dissipation fan 501 is turned on to quickly discharge the heat of the coolant, so that the coolant is quickly cooled and is easy to be recycled.

[0032] The surface of the reaction tank 1 is sleeved with a rock wool sleeve 10, and the surface of the rock wool sleeve 10 is sleeved with a polyphenylene sleeve 11.

[0033] The rock wool sleeve 10 and the polyphenylene sleeve 11 are provided to provide thermal insulation to the reaction tank 1, thereby preventing heat loss and reducing energy waste.

[0034] The electric heating plate 3 is electrically connected to a temperature controller 12, which is fixedly mounted on the surface of the polyphenylene sleeve 11. A tank cover 13 is movably provided on the top surface of the reaction tank 1, and a knob is fixedly mounted on the top of the tank cover 13.

[0035] The temperature controller 12 is provided to control the heating temperature of the electric heating plate 3 .

[0036] The model of the temperature controller 12 is: Autonics TCN4M-24R. The above parameters and models can be selected according to actual conditions.

[0037] Working principle: the raw materials for preparing formaldehyde are put into the reaction tank 1, and the external power supply is connected to make the electric heating plate 3 generate heat. The heating temperature of the electric heating plate 3 is controlled by the temperature controller 12 to heat the reaction tank 1 to prepare high-temperature formaldehyde gas, and then the coolant is injected into the coolant tank 4, the circulating water pump 6 is turned on, the coolant is extracted through the liquid inlet pipe 8, and is transported to the upper ring copper tube 201 through the infusion pipe 9, and then transported to the heat-conducting copper tube 202. The coolant absorbs the heat inside the reaction tank 1, so that the formaldehyde gas can be quickly cooled and condensed. The coolant flows back to the coolant tank 4 through the lower ring copper tube 203 and the reflux pipe 7, and the cooling fan 501 is turned on to quickly discharge the heat of the coolant, so that the coolant is quickly cooled and easy to recycle, thereby achieving rapid cooling of the high-temperature formaldehyde gas. The rock wool sleeve 10 and the polyphenyl sleeve 11 insulate the reaction tank 1 to avoid heat loss and reduce energy waste.

[0038] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may be subject to various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A formaldehyde oxidation reaction device, comprising a reaction tank (1), characterized in that: A copper tube assembly (2) is fixedly arranged on the inner wall of the reaction tank (1), electric heating plates (3) are fixedly arranged around the inner wall of the reaction tank (1), a coolant tank (4) is fixedly arranged on the bottom of the reaction tank (1), a heat dissipation mechanism (5) is fixedly arranged on the top surface of the coolant tank (4), and a circulating water pump (6) is fixedly installed on one side of the coolant tank (4).

2. A formaldehyde oxidation reaction device according to claim 1, characterized in that: The copper tube assembly (2) comprises an upper ring copper tube (201) fixedly arranged on the inner wall of the reaction tank (1), a heat-conducting copper tube (202) penetrating the surface of the upper ring copper tube (201), and a lower ring copper tube (203) penetrating the bottom of the heat-conducting copper tube (202).

3. A formaldehyde oxidation reaction device according to claim 2, characterized in that: A return pipe (7) is provided through one end of the lower ring copper tube (203), and one end of the return pipe (7) is provided through the interior of the coolant tank (4).

4. A formaldehyde oxidation reaction device according to claim 2, characterized in that: The input end of the circulating water pump (6) is provided with a liquid inlet pipe (8), one end of which is provided in the interior of the coolant tank (4); the output end of the circulating water pump (6) is provided with a liquid infusion pipe (9), one end of which is provided in the interior of the upper ring copper tube (201).

5. A formaldehyde oxidation reaction device according to claim 1, characterized in that: The heat dissipation mechanism (5) comprises a heat dissipation fan (501) fixedly arranged on the top surface of the coolant tank (4), a dustproof net (502) fixedly installed on the top of the heat dissipation fan (501), and the number of the heat dissipation mechanisms (5) is four groups, and the four groups of heat dissipation mechanisms (5) are distributed in a rectangular array.

6. A formaldehyde oxidation reaction device according to claim 1, characterized in that: The surface of the reaction tank (1) is sleeved with a rock wool sleeve (10), and the surface of the rock wool sleeve (10) is sleeved with a polyphenylene sleeve (11).

7. A formaldehyde oxidation reaction device according to claim 6, characterized in that: The electric heating plate (3) is electrically connected to a temperature controller (12), and the temperature controller (12) is fixedly mounted on the surface of the polyphenylene sleeve (11). A tank cover (13) is movably provided on the top surface of the reaction tank (1), and a knob is fixedly mounted on the top of the tank cover (13).

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