Efficient heat loss control forced circulation evaporative crystallization equipment

Abstract

The utility model relates to the technical field of evaporative crystallization, in particular to efficient heat loss control forced circulation evaporative crystallization equipment. The device comprises a heating chamber, the top end of the heating chamber is provided with a steam treatment assembly, a through pipe is inserted into the bottom of the heating chamber in a penetrating mode, a valve is arranged on the through pipe, a conical evaporation crystallization chamber is installed at an end opening of the through pipe, and a discharging pipe is arranged on the outer side of the conical evaporation crystallization chamber in a penetrating mode; steam generated in the conical evaporation crystallization chamber is condensed in a treatment kettle and an upper cavity in the steam treatment assembly to generate condensed water, heat energy in the condensed water is recycled through heat exchange between a cylindrical heat exchanger and the condensed water, loss of the heat energy is further reduced, meanwhile, a feeding solution injected into a lower cavity is preheated, and the feeding solution is recycled. And extra heat energy required in the evaporative crystallization process is reduced, so that the energy consumption is effectively reduced, the energy utilization efficiency is improved, and the energy waste is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of evaporation crystallization, in particular to a kind of high-efficiency heat loss control forced circulation evaporation crystallization equipment. BACKGROUND

[0002] Forced circulation evaporation crystallization equipment is widely used in chemical industry, pharmacy, food industry and other industries, mainly used for evaporation and crystallization process of high-concentration solution. The equipment promotes the continuous flow of solution in the heat exchanger through forced circulation pump, ensures uniform heating of solution during heating process, improves heat exchange efficiency and control accuracy of solute crystallization. Combined with high thermal conductivity material, optimized heat exchanger design and using multiple-effect evaporation technology (MEE), the equipment can maximize the use of heat energy, reduce external heating demand, thereby improving energy utilization efficiency and operating economy. Through the comprehensive application of these technologies, forced circulation evaporation crystallization equipment plays an important role in improving production efficiency, optimizing product quality and reducing energy consumption.

[0003] In the prior art, forced circulation evaporation crystallization equipment usually generates heat loss during use, which is an inevitable phenomenon. The specific sources of heat loss include incomplete heat exchange, system leakage, heat loss, etc. Among them, steam is generated when the solution evaporates, and the direct discharge of these steam can easily lead to ineffective use of energy, resulting in waste of heat energy. In view of this, we propose a kind of high-efficiency heat loss control forced circulation evaporation crystallization equipment. UTILITY MODEL CONTENT

[0004] The utility model aims to provide a kind of high-efficiency heat loss control forced circulation evaporation crystallization equipment to solve the problem that the direct discharge of steam can easily lead to ineffective use of energy, resulting in waste of heat energy.

[0005] To achieve the above-mentioned purpose, a kind of high-efficiency heat loss control forced circulation evaporation crystallization equipment is provided, including heating chamber, the top of the heating chamber is provided with steam treatment assembly, the bottom of the heating chamber is through the insertion of pipe, the pipe is provided with valve, the port of the pipe is installed with conical evaporation crystallization chamber, the outside of the conical evaporation crystallization chamber is through the opening of discharge pipe, the bottom end of the conical evaporation crystallization chamber is inserted with circulation pipe, the outlet end of the circulation pump is installed with circulation pump, and the output end of the circulation pump is connected with circulation pipe, the output end of the circulation pump is installed with output pipe.

[0006] As a further improvement of the present technical solution, the steam treatment assembly includes a treatment kettle fixedly connected to the top surface of the heating chamber, a feed inlet is through-inserted on one side of the treatment kettle, and an air inlet pipe is through-inserted on the other side of the treatment kettle, and the air inlet pipe is in communication with the conical evaporation crystallization chamber. An adapter pipe is through-inserted at the bottom end of the treatment kettle, and the adapter pipe is in communication with the heating chamber.

[0007] As a further improvement of the technical solution, a separation circular plate which is adapted to the diameter size of the inner wall of the treatment kettle is fixedly connected at the central position of the inner wall of the treatment kettle, and the treatment kettle is divided into an upper cavity and a lower cavity by the separation circular plate.

[0008] As a further improvement of the technical solution, a reserved hole is formed at the center position of the separation circular plate, and a cylindrical heat exchanger is installed in the reserved hole of the separation circular plate, and the cylindrical heat exchanger is located in the lower cavity.

[0009] As a further improvement of the technical solution, the upper cavity is communicated with the gas inlet pipe, and the feeding port is communicated with the lower cavity.

[0010] As a further improvement of the technical solution, sealing covers are arranged at the openings of the discharging pipe and the feeding port.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] In the high-efficiency heat loss control forced circulation evaporation crystallization equipment, the steam generated in the conical evaporation crystallization chamber is condensed in the treatment kettle and the upper cavity of the steam treatment assembly to generate condensed water, the heat energy in the condensed water is recovered through heat exchange of the cylindrical heat exchanger and the condensed water, the loss of heat energy is reduced, the feed solution injected into the lower cavity is preheated, the additional heat energy required in the evaporation crystallization process is reduced, the energy consumption is effectively reduced, the energy utilization efficiency is improved, and the waste of energy is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 It is a whole structure schematic view of the utility model;

[0014] Fig. 2 It is a structure front view schematic view of embodiment 1 of the utility model;

[0015] Fig. 3 It is a steam treatment assembly schematic view of embodiment 1 of the utility model.

[0016] The meanings of various reference numerals in the drawings are as follows:

[0017] 1, heating chamber; 11, through pipe; 12, valve; 2, steam treatment assembly; 21, treatment kettle; 22, feeding port; 23, gas inlet pipe; 24, separation circular plate; 25, upper cavity; 26, lower cavity; 27, cylindrical heat exchanger; 28, connecting pipe; 3, conical evaporation crystallization chamber; 31, discharging pipe; 32, circulating pipe; 4, circulating pump; 41, output pipe. DETAILED DESCRIPTION

[0018] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be clearly and completely described below, obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0019] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0020] In addition, the terms "first" and "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0021] Embodiment 1

[0022] Please refer to Figs. 1-3 The present embodiment aims to provide a high-efficiency heat loss control forced circulation evaporation crystallization equipment, which comprises a heating chamber 1, a steam treatment assembly 2 is arranged at the top end of the heating chamber 1, a through pipe 11 is inserted through the bottom of the heating chamber 1, a valve is arranged on the through pipe 11, a conical evaporation crystallization chamber 3 is installed at the port of the through pipe 11, a discharge pipe 31 is through-opened at the outer side of the conical evaporation crystallization chamber 3, a circulation pipe 32 is inserted at the bottom end of the conical evaporation crystallization chamber 3, a circulation pump 4 is installed at the outlet end of the circulation pipe 32, the output end of the circulation pump 4 is connected with the circulation pipe 32, an output pipe 41 is installed on the output end of the circulation pump 4, the circulation pump 4 is installed through the outlet end of the circulation pipe 32, the output end of the circulation pump 4 is connected with the circulation pipe 32, and the output pipe 41 is installed on the output end of the circulation pump 4, which ensures the forced circulation of the equipment and improves the structural rationality; whether the solution is introduced into the conical evaporation crystallization chamber 3 is controlled by the valve 12.

[0023] In addition, the steam treatment assembly 2 comprises a treatment kettle 21 fixedly connected to the top surface of the heating chamber 1, one side of the treatment kettle 21 is throughly inserted with a feeding port 22, the other side of the treatment kettle 21 is throughly inserted with an air inlet pipe 23, the air inlet pipe 23 is communicated with the conical evaporation crystallization chamber 3, the bottom end of the treatment kettle 21 is throughly inserted with a connecting pipe 28, and the connecting pipe 28 is communicated with the heating chamber 1; a separation disc 24 with a diameter size matched with the inner wall of the treatment kettle 21 is fixedly connected to the central position of the inner wall of the treatment kettle 21, the treatment kettle 21 is divided into an upper cavity 25 and a lower cavity 26 by the separation disc 24, and the upper cavity 25 is located above the lower cavity 26; the separation disc 24 makes the upper cavity 25 a certain closed space, which is conducive to condensation; a reserved hole is formed at the central position of the separation disc 24, a cylindrical heat exchanger 27 is installed in the reserved hole of the separation disc 24, and the cylindrical heat exchanger 27 is located in the lower cavity 26, the cylindrical heat exchanger 27 receives and exchanges heat with the condensed water; the upper cavity 25 is communicated with the air inlet pipe 23, and the feeding port 22 is communicated with the lower cavity 26; the upper cavity 25 is communicated with the air inlet pipe 23 and the feeding port 22 is communicated with the lower cavity 26, so that the upper cavity 25 can collect steam, and the feeding port 22 can inject liquid for preheating.

[0024] Further, the outlet pipe 31 and the opening of the feeding port 22 are both provided with sealing covers, which ensure the air tightness of the whole equipment.

[0025] The working principle of the present scheme is as follows: the user can inject feed solution through the feed inlet 22, the feed solution enters the lower cavity 26 from the feed inlet 22, and flows downward from the connecting pipe 28 due to gravity, and then flows into the heating chamber 1 from the connecting pipe 28, the heating chamber 1 is started, and the heating chamber 1 heats the material solution for a period of time, then the user rotates the valve 12 to control the outflow of the feed solution, the feed solution flows into the conical evaporation crystallization chamber 3 from the through pipe 11, and evaporates and crystallizes in the conical evaporation crystallization chamber 3, the steam generated by evaporation accumulates inside and above the conical evaporation crystallization chamber 3 and enters the treatment kettle 21 along the air inlet pipe 23, due to the normal temperature environment of the upper cavity 25 and heat transfer, the hot steam accumulated in the upper cavity 25 is condensed into liquid, and the condensed water drops from the upper cavity 25 to the cylindrical heat exchanger 27 under the action of gravity, through heat exchange of the cylindrical heat exchanger 27, heat is transferred from the condensed water to the inside of the cylindrical heat exchanger 27, with the continuous feeding of the feed solution into the upper cavity 25 from the feed inlet 22 and contacting with the cylindrical heat exchanger 27, the feed solution gradually starts to heat after being heated by the cylindrical heat exchanger 27, and then flows into the heating chamber 1 through the connecting pipe 28, and can directly evaporate and crystallize without long heating time, the crystal slurry and the feed solution that have not been completely evaporated flow into the circulating pipe 32, the circulating pump 4 is started, and the crystal slurry and the feed solution in the circulating pipe 32 connected to the output end of the circulating pump 4 are transported, and then flow into the heating chamber 1 through the output pipe 41 on the output end of the circulating pump 4, and the crystal slurry is heated in the heating chamber 1, but does not evaporate. The hot crystal slurry boils again through the through pipe 11 and then enters the discharge pipe 31 under the action of gravity, so that the solution reaches a supersaturated state, and then part of the solute is deposited on the surface of the suspended crystal grains, so that the crystal grains grow, and the crystal grains are discharged through the discharge pipe 31.

[0026] The basic principle, main features and advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited to the above embodiments, and the above embodiments and descriptions in the specification are only preferred examples of the present application and are not intended to limit the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency heat loss controlled forced circulation evaporation crystallization device, characterized in that: The device includes a heating chamber (1), a steam treatment assembly (2) is provided at the top of the heating chamber (1), a through pipe (11) is inserted through the bottom of the heating chamber (1), a valve (12) is provided on the through pipe (11), a conical evaporation crystallization chamber (3) is installed at the port of the through pipe (11), a discharge pipe (31) is provided through the outside of the conical evaporation crystallization chamber (3), a circulation pipe (32) is inserted at the bottom of the conical evaporation crystallization chamber (3), a circulation pump (4) is installed at the outlet end of the circulation pipe (32), and the output end of the circulation pump (4) is connected to the circulation pipe (32), and an output pipe (41) is installed on the output end of the circulation pump (4).

2. The high-efficiency heat loss control forced circulation evaporation crystallization equipment according to claim 1, characterized in that: The steam treatment assembly (2) includes a treatment vessel (21) fixedly connected to the top surface of the heating chamber (1). A feed inlet (22) is inserted through one side of the treatment vessel (21), and an air inlet pipe (23) is inserted through the other side of the treatment vessel (21). The air inlet pipe (23) is connected to the conical evaporation crystallization chamber (3). A connecting pipe (28) is inserted through the bottom end of the treatment vessel (21), and the connecting pipe (28) is connected to the heating chamber (1).

3. The high-efficiency heat loss control forced circulation evaporation crystallization equipment according to claim 2, characterized in that: A dividing circular plate (24) adapted to the diameter of the inner wall of the processing vessel (21) is fixedly connected at the center of the inner wall of the processing vessel (21). The dividing circular plate (24) divides the interior of the processing vessel (21) into an upper cavity (25) and a lower cavity (26).

4. The high-efficiency heat loss control forced circulation evaporation crystallization equipment according to claim 3, characterized in that: A pre-drilled hole is provided at the center of the dividing circular plate (24), and a cylindrical heat exchanger (27) is installed in the pre-drilled hole of the dividing circular plate (24), and the cylindrical heat exchanger (27) is located in the lower cavity (26).

5. The high-efficiency heat loss control forced circulation evaporation crystallization equipment according to claim 3, characterized in that: The upper cavity (25) is connected to the air inlet pipe (23), and the feed inlet (22) is connected to the lower cavity (26).

6. The high-efficiency heat loss control forced circulation evaporation crystallization equipment according to claim 1, characterized in that: Both the outlet pipe (31) and the inlet (22) are equipped with sealing caps.

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