Sodium chlorite concentration device

Abstract

The utility model discloses a sodium chlorite concentration device which comprises a reaction kettle, a first cavity and a second cavity are formed in the reaction kettle, the second cavity surrounds the first cavity, a vacuumizing valve is arranged at the top of the first cavity, the upper portion of the first cavity is connected with one end of an air guide pipe, and the other end of the air guide pipe communicates with a liquid storage cavity. The gas guide pipe is coated with a condensation assembly, a heating rod is arranged in the second cavity, a temperature sensor is installed in the second cavity, the temperature sensor is electrically connected with the microcontroller, and the microcontroller is electrically connected with a control switch of the heating rod; heat is transferred by heating water, so that heating equipment is not in direct contact with a sodium chlorite solution, the risk of equipment corrosion is reduced, the contact area between the hot water and the first cavity is increased, the solution in the first cavity is heated uniformly, local overheating is avoided, the water temperature is adjusted through the microcontroller, and the evaporation temperature of the solution is controlled; the concentration efficiency of the sodium chlorite solution is improved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of chemical preparation production, concretely relates to a sodium chlorite concentration device. BACKGROUND

[0002] Sodium chlorite is a kind of high-efficiency oxidant, bleaching agent, and is widely used in bleaching, disinfection and other fields.

[0003] The sodium chlorite in chemical production is usually generated by the reaction of liquid raw materials, and contains a large amount of moisture. In order to reduce the transportation cost and storage space of sodium chlorite solution, it is necessary to concentrate the sodium chlorite solution. If a heating device is used to directly heat and evaporate the sodium chlorite solution for concentration, it will cause uneven heating of the sodium chlorite solution, so that the sodium chlorite is decomposed into chlorine dioxide, chlorine ion and other products at high temperature. In order to improve the heating and evaporation concentration efficiency of the sodium chlorite solution, the temperature during heating of the sodium chlorite solution needs to be controlled. CONTENT OF THE UTILITY MODEL

[0004] To solve the problems encountered in the above background art, the present application provides a sodium chlorite concentration device which can realize temperature control during heating and concentration of sodium chlorite solution, so that the sodium chlorite solution is evenly heated, thereby improving the concentration efficiency of the sodium chlorite solution.

[0005] To achieve the above purpose, the utility model provides the following technical scheme:

[0006] A sodium chlorite concentration device, comprising a reaction kettle, a first cavity and a second cavity are arranged in the reaction kettle respectively, the second cavity is arranged around the first cavity, a vacuum valve is arranged at the top of the first cavity, the upper part of the first cavity is connected with one end of a gas guide pipe, the other end of the gas guide pipe is communicated with a liquid storage cavity, a condensation assembly is wrapped outside the gas guide pipe, a heating rod is arranged in the second cavity, a temperature sensor is installed in the second cavity, the temperature sensor is electrically connected with a microcontroller, and the microcontroller is electrically connected with the control switch of the heating rod.

[0007] In one embodiment of the present application, the gas guide pipe is arranged in an inclined manner, the high end of the gas guide pipe is communicated with the upper part of the first cavity, and the low end of the gas guide pipe is communicated with the liquid storage cavity.

[0008] In one embodiment of the present application, the condensation assembly comprises a condensation pipe, the condensation pipe is wrapped outside the gas guide pipe, one end of the cooling cavity of the condensation pipe is communicated with a water storage cavity through a cooling water inlet pipe, the other end of the cooling cavity of the condensation pipe is communicated with the water storage cavity through a cooling water return pipe, the water storage cavity is communicated with the second cavity through a water injection pipe, and first and second pump bodies are arranged on the cooling water inlet pipe and the water injection pipe respectively.

[0009] In one embodiment of the present application, the top of the first cavity is provided with a motor, the transmission shaft of the motor extends into the first cavity, and the bottom end of the transmission shaft is connected with a stirring part.

[0010] In one embodiment of the present application, the top of the first cavity is provided with a feeding pipe, and the feeding pipe is provided with a filter screen.

[0011] In one embodiment of the present application, the outer wall of the second cavity is provided with a support.

[0012] In one embodiment of the present application, the bottom end of the support is provided with a pad plate.

[0013] In summary, the technical scheme provided by the present application has the following beneficial technical effects: the present application transfers heat by heating water, so that the heating equipment does not directly contact the sodium chlorite solution, reducing the risk of equipment corrosion. A temperature sensor is installed in the second cavity for detecting the temperature of the water in the second cavity, and the temperature sensor is electrically connected with a microcontroller. The temperature sensor is used to transmit a temperature signal to the microcontroller, and the microcontroller is electrically connected with a control switch of the heating rod. A temperature range is set in the microcontroller. When the temperature is higher than the set value, the microcontroller controls the heating rod to stop running. When the temperature is lower than the set value, the microcontroller starts the heating rod, so as to control the temperature of the water in the second cavity, and then control the temperature of the evaporation and concentration of the sodium chlorite solution in the first cavity, so that the sodium chlorite solution is evenly heated, thereby improving the concentration efficiency of the sodium chlorite solution. BRIEF DESCRIPTION OF DRAWINGS

[0014] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.

[0015] Figure 1 The three-dimensional structure schematic diagram of the sodium chlorite concentration device provided by one embodiment of the present application is shown in the figure.

[0016] Figure 2 The assembly structure schematic diagram of the sodium chlorite concentration device provided by one embodiment of the present application is shown in the figure.

[0017] Figure 3 The side view three-dimensional structure schematic diagram of the sodium chlorite concentration device provided by one embodiment of the present application is shown in the figure.

[0018] Figure 4 The bottom view three-dimensional structure schematic diagram of the sodium chlorite concentration device provided by one embodiment of the present application is shown in the figure.

[0019] In the figure:

[0020] Reaction kettle 1, first cavity 11, vacuum valve 111, second cavity 12, heating rod 121, gas guide pipe 13;

[0021] Liquid storage cavity 2;

[0022] Condensing assembly 3, condensing pipe 31, cooling water inlet pipe 32, first pump body 321, cooling water return pipe 33, second pump body 331, water injection pipe 34;

[0023] Motor 112, transmission shaft 1121, stirring part 1122;

[0024] Charging pipe 113, filter screen 1131;

[0025] Support 4, backing plate 41;

[0026] Water storage cavity 5. DETAILED DESCRIPTION

[0027] To make the objectives, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application are clearly and completely described below. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of the present application.

[0028] It should be noted that in the description of the present application, the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0029] The terms "mounting", "connecting", "connection" in the present application should be understood broadly, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection; it can be directly connected, or indirectly connected through intermediate medium; it can be the communication inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood through specific circumstances.

[0030] In the embodiments of the present application, the word "exemplary" or "for example" is used to mean serving as an example, instance, or illustration. Any embodiment or design described in the embodiments of the present application as "exemplary" or "for example" should not be construed as preferred or advantageous over other embodiments or designs. Rather, the word "exemplary" or "for example" is used in the sense of "as an example". The embodiments described in the present application are intended to be illustrative rather than restrictive.

[0031] The sodium chlorite concentration device provided by the embodiments of the present application, referring to Figures 1-4 As shown in the figure, the device comprises a reaction kettle 1, the reaction kettle 1 is provided with a first cavity 11 and a second cavity 12 respectively, the second cavity 12 is arranged around the first cavity 11, the top of the first cavity 11 is provided with a vacuum valve 111 and a liquid inlet pipe, the upper part of the first cavity 11 is connected with one end of a gas guide pipe 13, the other end of the gas guide pipe 13 is connected with a liquid storage cavity 2, the gas guide pipe 13 is coated with a condensation assembly 3, the second cavity 12 is provided with a heating rod 121, the second cavity 12 is installed with a temperature sensor, the temperature sensor is electrically connected with a microcontroller, and the microcontroller is electrically connected with the control switch of the heating rod 121.

[0032] In the above embodiments, the reaction kettle 1 is provided with the first cavity 11 and the second cavity 12 respectively, the first cavity 11 is used to add sodium chlorite solution, the second cavity 12 is arranged on the outer side of the first cavity 11, the second cavity 12 is filled with water, and the top of the first cavity 11 is provided with a vacuum valve 111, the vacuum valve 111 is used to be connected with a vacuum pump to extract part of the gas in the first cavity 11 to reduce the pressure in the first cavity 11, so that the solution can boil at a lower temperature, that is, when the pressure is reduced, the liquid is more likely to reach its vapor pressure, thereby boiling at a lower temperature, avoiding decomposition reaction of the sodium chlorite solution under high temperature boiling. The upper part of the first cavity 11 is connected with the liquid storage cavity 2 through the gas guide pipe 13, and in actual work, the outer walls of the gas guide pipe 13 and the liquid storage cavity 2 are in a sealed state, thereby maintaining the same pressure as the first cavity 11. The second cavity 12 is provided with a heating rod 121, and the second cavity 12 is filled with water. The water in the second cavity 12 is heated by the heating rod 121 first, and then the first cavity 11 is heated after the water is heated. The outer wall of the first cavity 11 is made of a heat conduction plate, and the water in the second cavity 12 is wrapped around the outside of the first cavity 11, which can provide uniform heat transfer for the first cavity 11, ensuring that the sodium chlorite solution is heated uniformly, compared with the heating device directly heating the solution, which can avoid uneven heating of the solution causing local overheating.

[0033] Further, the sodium chlorite solution has strong oxidizing property and can corrode the heating device and other equipment. In the present application, heat is transferred by heating water, so that the heating device does not directly contact the sodium chlorite solution, reducing the risk of equipment corrosion. Further, a temperature sensor is installed in the second cavity 12 for detecting the temperature of the water in the second cavity 12, and the temperature sensor is electrically connected to a microcontroller, such as an MCU. The temperature sensor is used to transmit a temperature signal to the microcontroller, and the microcontroller is electrically connected to the control switch of the heating rod 121. A temperature range is set in the microcontroller. When the temperature is higher than the set value, the microcontroller controls the heating rod 121 to stop running. When the temperature is lower than the set value, the microcontroller starts the heating rod 121, so as to control the temperature of the water in the second cavity 12, and further control the temperature of the evaporation and concentration of the sodium chlorite solution in the first cavity 11, so that the sodium chlorite solution is uniformly heated, thereby improving the concentration efficiency of the sodium chlorite solution.

[0034] In addition, the gas guide pipe 13 is coated with a condensing assembly 3 for cooling the gas guide pipe 13. The water vapor generated by the boiling of the heated sodium chlorite solution moves to the upper part of the first cavity 11 and enters the gas guide pipe 13, where it condenses. The condensed water flows into the liquid storage cavity 2. The condensing assembly 3 can accelerate the condensation speed of the water vapor by reducing the temperature of the gas guide pipe 13. The cooling of the gas guide pipe 13 can also prevent the heat in the first cavity 11 from being conducted to the liquid storage cavity 2 through the gas guide pipe 13, thereby preventing the condensed water from evaporating again and improving the concentration efficiency of the sodium chlorite solution.

[0035] The residual medicament in the condensed water cannot be directly discharged, which can pollute the water body. The condensed water is stored in the liquid storage cavity 2 for harmless treatment and discharge.

[0036] In an embodiment of the present application, referring to Figure 2 As shown in the figure, the gas guide pipe 13 is arranged in an inclined manner. The high end of the gas guide pipe 13 is connected to the upper part of the first cavity 11, and the low end of the gas guide pipe 13 is connected to the liquid storage cavity 2.

[0037] In the above embodiment, the gas guide pipe 13 is arranged in an inclined manner. The inlet of the gas guide pipe 13, i.e. the connection end of the gas guide pipe 13 and the upper part of the first cavity 11, is higher than the outlet of the gas guide pipe 13, i.e. the connection end of the gas guide pipe 13 and the liquid storage cavity 2. Therefore, after the water vapor is condensed and liquefied in the gas guide pipe 13, it can flow into the liquid storage cavity 2 along the inclined direction of the gas guide pipe 13, preventing the condensed water vapor from flowing back into the first cavity 11, and improving the evaporation and concentration efficiency of the sodium chlorite solution.

[0038] In an embodiment of the present application, referring to Figure 3As shown, the condensing assembly 3 comprises a condensing pipe 31 which is wrapped outside the air guide pipe 13, one end of the cooling cavity of the condensing pipe 31 is connected with the water storage cavity 5 through a cooling water inlet pipe 32, the other end of the cooling cavity of the condensing pipe 31 is connected with the water storage cavity 5 through a cooling water return pipe 33, the water storage cavity 5 is connected with the second cavity 12 through a water injection pipe 34, and the cooling water inlet pipe 32 and the water injection pipe 34 are respectively provided with a first pump body 321 and a second pump body 331.

[0039] In the above embodiment, the lower end of the cooling cavity of the condensing pipe 31 is connected with the water storage cavity 5 through the cooling water inlet pipe 32, the upper end of the cooling cavity of the condensing pipe 31 is connected with the water storage cavity 5 through the cooling water return pipe 33, the cooling water in the water storage cavity 5 is injected into the cooling cavity of the condensing pipe 31 through the first pump body 321, and the cooling water is flowed back to the water storage cavity 5 through the cooling water return pipe 33 after heat exchange with the outer wall of the air guide pipe 13, so as to realize the cooling of the air guide pipe 13 and make the water vapor in the air guide pipe 13 condense and liquefy. Further, the water storage cavity 5 is connected with the second cavity 12 through the water injection pipe 34, the water in the second cavity 12 is consumed due to heating and evaporation and the like, and needs to be supplemented, the water in the water storage cavity 5 is heated through heat exchange with the air guide pipe 13, and can be used to supplement the heated water in the second cavity 12, and the high initial temperature of the water in the water storage cavity 5 can reduce the energy consumed by the heating device in the second cavity 12, which is beneficial to improve the energy utilization efficiency of the device.

[0040] In an embodiment of the present application, referring to Figure 2 As shown, the top of the first cavity 11 is provided with a motor 112, a transmission shaft 1121 of the motor 112 extends into the first cavity 11, and a stirring part 1122 is connected to the bottom end of the transmission shaft 1121.

[0041] In the above embodiment, the motor 112 drives the transmission shaft 1121 to rotate, and then drives the stirring part 1122 at the bottom end of the transmission shaft 1121 to rotate and stir in the first cavity 11, so that the sodium chlorite solution is uniformly heated and the evaporation speed of water in the solution is accelerated, which is beneficial to improve the evaporation and concentration efficiency.

[0042] In an embodiment of the present application, referring to Figure 2 As shown, the top of the first cavity 11 is provided with a feeding pipe 113, and a filter screen 1131 is arranged in the feeding pipe 113.

[0043] In the above embodiment, the feeding pipe 113 is connected with the top of the first cavity 11 through a valve, and the sodium chlorite solution is added into the first cavity 11 through the feeding pipe 113, and the filter screen 1131 is arranged in the feeding pipe 113, which is used for filtering and pretreating the sodium chlorite solution to remove suspended matters and impurities in the solution, so as to improve the purity of the solution.

[0044] In one embodiment of the present application, referring to Figure 4 As shown in the figure, the outer wall of the second cavity 12 is provided with a support 4.

[0045] In the above embodiment, the support 4 is used to support the device on one hand, which is beneficial to improve the stability of the device during operation, and on the other hand, the support 4 is used to support the cavity to a certain height from the ground, which is convenient for the discharge device at the bottom of the second cavity 12 to discharge.

[0046] In one embodiment of the present application, referring to Figure 4 As shown in the figure, the bottom end of the support 4 is provided with a pad plate 41.

[0047] In the above embodiment, the pad plate 41 provided at the bottom end of the support 4 is used to increase the support contact area of the bottom end of the support 4 with the ground, which is beneficial to improve the stability of the support 4.

[0048] In the actual use of the present application: the top of the first cavity 11 is provided with a vacuum valve 111, after the sodium chlorite solution is added to the first cavity 11, the vacuum valve 111 is connected with a vacuum pump, the air pressure in the first cavity 11 is reduced, thereby reducing the boiling temperature of the sodium chlorite solution. In the practical example, the evaporation temperature of the sodium chlorite solution should be controlled below 50℃, preferably between 30-40℃, to avoid decomposition of the sodium chlorite solution. The temperature sensor is electrically connected with the microcontroller, and the microcontroller is electrically connected with the control switch of the heating rod 121. The temperature range is set in the microcontroller, when the temperature is higher than the set value 40℃, the microcontroller controls the heating rod 121 to stop running, when the temperature is lower than the set value 30℃, the microcontroller starts the heating rod 121 to run, to realize the control of the water temperature in the second cavity 12, and then realize the temperature control of the evaporation and concentration of the sodium chlorite solution in the first cavity 11, so that the sodium chlorite solution is heated uniformly, to improve the concentration efficiency of the sodium chlorite solution.

[0049] Finally, it should be pointed out that the above embodiments are only used to illustrate the technical solutions of the present application, but not to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can modify the technical solutions described in the foregoing embodiments, or make equivalent replacement for part 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 embodiments of the present application.

Claims

1. A sodium chlorite concentration device, characterized by, Including the reaction kettle (1), first cavity (11) is arranged respectively in the reaction kettle (1), second cavity (12) is arranged around first cavity (11), the top of first cavity (11) is provided with vacuum valve (111), the upper portion of first cavity (11) is connected with one end of gas guide pipe (13), the other end of gas guide pipe (13) is communicated with liquid storage cavity (2), gas guide pipe (13) is covered with condensation assembly (3), heating rod (121) is arranged in second cavity (12), temperature sensor is installed in second cavity (12), temperature sensor is electrically connected with microcontroller, microcontroller is electrically connected with the control switch of heating rod (121).

2. The sodium chlorite concentration device of claim 1, wherein, The gas guide pipe (13) is arranged in an inclined manner, the high end of the gas guide pipe (13) is communicated with the upper portion of the first cavity (11), and the low end of the gas guide pipe (13) is communicated with the liquid storage cavity (2).

3. The sodium chlorite concentration device of claim 2, wherein, The condensation assembly (3) includes a condenser tube (31), the condenser tube (31) is wrapped outside the gas guide pipe (13), one end of the cooling cavity of the condenser tube (31) is communicated with the water storage cavity (5) through the cooling water inlet pipe (32), the other end of the cooling cavity of the condenser tube (31) is communicated with the water storage cavity (5) through the cooling water return pipe (33), the water storage cavity (5) is communicated with the second cavity (12) through the water injection pipe (34), the cooling water inlet pipe (32) and the water injection pipe (34) are respectively provided with first pump body (321) and second pump body (331).

4. The sodium chlorite concentration device of claim 1, wherein, The top of the first cavity (11) is provided with a motor (112), the transmission shaft (1121) of the motor (112) extends into the first cavity (11), and the bottom end of the transmission shaft (1121) is connected with a stirring part (1122).

5. The sodium chlorite concentration device of claim 1, wherein, The top of the first cavity (11) is provided with a feeding pipe (113), and the feeding pipe (113) is provided with a filter screen (1131).

6. The sodium chlorite concentration device of claim 1, wherein, The outer wall of the second cavity (12) is provided with a support (4).

7. The sodium chlorite concentration device of claim 6, wherein, The bottom end of the support (4) is provided with a pad (41).

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