Evaporator

Abstract

The utility model relates to the technical field of chemical engineering, and discloses an evaporator which comprises an evaporator shell, a supporting frame is fixedly installed at the bottom of the evaporator shell, a steam exhaust port is formed in the top of the evaporator shell, a liquid inlet is formed in the left side of the evaporator shell, and a liquid outlet is formed in the bottom of the evaporator shell. And a stepping motor is fixedly mounted at the top of the evaporator shell. According to the evaporator, the driving screw rod and the connecting assembly are arranged, the driving screw rod rotates to drive the connecting assembly to axially move on the side surface of the connecting assembly, the position height of the U-shaped stirring rod is adjusted, when the liquid level in the evaporator shell is low, the U-shaped stirring rod can be moved downwards, and when the liquid level is high, the U-shaped stirring rod can be moved downwards. And the U-shaped stirring rod can be moved upwards to keep a contact effect with the liquid, so that the liquid is stably heated, and the evaporation efficiency of the evaporator on the liquid is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical industry, in particular to an evaporator. Background Art

[0002] An evaporator is a device used to convert liquid into steam. It is commonly used in liquid evaporation, concentration and purification operations in industrial processes. The evaporator uses heating to evaporate the solute molecules in the liquid, converting them into gas or steam, thereby achieving liquid concentration and separation.

[0003] The working principle of the evaporator is based on the boiling and evaporation of the liquid; the liquid is heated to a temperature above its saturated vapor pressure, so that the molecules in the liquid obtain enough energy to transform from liquid to gas. Evaporators are widely used in chemical industry, food processing, beverage production, pharmaceutical and other fields; in the process of heating the liquid through the evaporator, in order to ensure that the liquid is heated evenly, it is necessary to use a heater to heat the liquid at different positions.

[0004] Chinese patent CN214714398U discloses an energy-saving evaporator comprising an evaporator body, a rotating shaft rotatably connected to the evaporator body, a fixed frame built into the evaporator body and fixedly connected to the rotating shaft, an electric heating rod mounted on the fixed frame, and a driving member that drives the rotating shaft to rotate about its own axis. The evaporator body is connected to an exhaust pipe, a liquid inlet pipe, and a liquid outlet pipe. The driving member drives the rotating shaft to rotate about its own axis, thereby driving the fixed frame to rotate, and further driving the electric heating rod to rotate, thereby heating different positions of the evaporator body, so that the liquid in the evaporator body is heated evenly, comprehensively heating the liquid and improving evaporation efficiency. This application has the advantage of improving the uniformity of liquid heating.

[0005] The evaporator in the above technical solution realizes the heating operation of different positions inside the tank body by rotating the heating rod, so as to achieve uniform heating of the liquid. However, the position height of the heating rod in this technical solution cannot be adjusted. When the liquid capacity inside the tank body is small, the heating rod cannot effectively contact the liquid in the tank body, so that the heating rod cannot add temperature to the liquid when it works, thereby reducing the evaporation effect of the evaporator. In view of this, the utility model proposes an evaporator. Utility Model Content

[0006] (1) Technical problems solved

[0007] In view of the deficiencies in the prior art, the present invention provides an evaporator to solve the problems raised in the above background technology.

[0008] (2) Technical solution

[0009] To achieve the above-mentioned purpose, the present invention provides the following technical solution: an evaporator, comprising an evaporator shell, a support frame fixedly mounted on the bottom of the evaporator shell, a steam outlet provided on the top of the evaporator shell, a liquid inlet provided on the left side of the evaporator shell, a liquid outlet provided on the bottom of the evaporator shell, a stepper motor fixedly mounted on the top of the evaporator shell, four U-shaped heating tubes provided inside the evaporator shell, a drive screw fixedly mounted on the output end of the stepper motor, the U-shaped heating tube being connected to the drive screw via a connecting assembly, driving the U-shaped heating tube to move up and down on the drive screw.

[0010] Preferably, four support rods are fixedly connected to the inner side wall of the evaporator shell, and a round seat is fixedly connected to the end of the support rod away from the evaporator shell. The round seat is fixed to the four support rods, and a round groove is provided on the top of the round seat. The bottom end of the driving screw is rotatably connected to the inside of the circular groove. The support rod is arranged at an angle, and the round seat is located above the support rod. The bottom end of the driving screw is supported by the round seat to make its rotation more stable.

[0011] Preferably, the connecting assembly includes a threaded sleeve, two circular rings and a limiting circular ring. The threaded sleeve, two circular rings and the limiting circular ring are all arranged in concentric circles. The inner diameters of the two circular rings are different. The threaded sleeve, circular ring and limiting circular ring are connected and fixed by a connecting rod. The two ends of the U-shaped heating tube are respectively fixed to the bottom of the two circular rings. The U-shaped heating tube can move up and down with the connecting assembly.

[0012] Preferably, the evaporator shell is cylindrical, the inner side wall of the evaporator shell is fixedly connected with a guide bar, the side surface of the limiting ring is provided with a guide groove, and the guide bar is located inside the guide groove to position and guide the limiting ring so that it moves up and down.

[0013] Preferably, both upper and lower ends of the driving screw are smooth, the thread on the driving screw is located in the middle position, and two limit sleeves are fixedly connected to the side surface of the driving screw, and the two limit sleeves are respectively located on the upper and lower sides of the thread.

[0014] Preferably, a U-shaped stirring rod is fixedly connected to the side surface of the driving screw, and both ends of the U-shaped stirring rod are respectively located on the left and right sides of the U-shaped heating tube. The U-shaped stirring rod is located below the U-shaped heating tube to stir the liquid.

[0015] Compared with the prior art, the present invention provides an evaporator with the following beneficial effects:

[0016] 1. The evaporator is provided with a driving screw and a connecting assembly, so that the driving screw rotates to drive the connecting assembly to move axially on its side surface, thereby adjusting the position and height of the U-shaped stirring rod. When the liquid level inside the evaporator shell is low, the U-shaped stirring rod can be moved downward. When the liquid level is high, the U-shaped stirring rod can be moved upward to maintain contact with the liquid, thereby stably heating the liquid and improving the evaporation efficiency of the evaporator for the liquid.

[0017] 2. The evaporator can stir the liquid inside the evaporator shell by arranging a U-shaped stirring rod on the side surface of the driving screw, so that the heated liquid is heated more evenly and the evaporation is accelerated. At the same time, the two ends of the U-shaped stirring rod are respectively located on the left and right sides of the U-shaped heating tube, so as not to affect the up and down movement of the U-shaped heating tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] To more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for the embodiments or the description of the prior art. Obviously, the drawings described below are merely illustrative, and those skilled in the art can, without inventive effort, derive other implementation drawings based on the provided drawings.

[0019] The structures, proportions, sizes, etc. illustrated in this specification are intended solely to complement the contents disclosed herein and to facilitate understanding and reading by persons familiar with the art. They are not intended to limit the conditions under which the present invention may be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportions, or adjustments in size, without affecting the efficacy and objectives of the present invention, shall remain within the scope of the technical contents disclosed herein.

[0020] Figure 1 This is a complete structural diagram of the utility model;

[0021] Figure 2 This is a front structural sectional view of the evaporator housing of the present invention;

[0022] Figure 3 For this utility model Figure 2 A magnified view of the structure at center A;

[0023] Figure 4 This is a schematic diagram of the connection structure of the connection component and the U-shaped heating pipe of the utility model.

[0024] Among them: 1. Evaporator shell; 2. Support frame; 3. Steam exhaust port; 4. Liquid inlet; 5. Liquid outlet; 6. Stepper motor; 7. U-shaped heating tube; 8. Drive screw; 9. Support rod; 10. Round seat; 11. Threaded sleeve; 12. Ring; 13. Limiting ring; 14. Connecting rod; 15. Guide strip; 16. Guide groove; 17. U-shaped stirring rod. DETAILED DESCRIPTION

[0025] In order to make the technical means, creative features, purpose and efficacy of the present invention easy to understand, the present invention is further described below in conjunction with specific embodiments, but the following embodiments are only preferred embodiments of the present invention, not all. Based on the embodiments in the implementation manner, other embodiments obtained by those skilled in the art without making creative work are all within the scope of protection of the present invention. The experimental methods in the following embodiments, unless otherwise specified, are all conventional methods, and the materials, reagents, etc. used in the following embodiments, unless otherwise specified, can be obtained from commercial channels.

[0026] See also Figure 1-4 , an evaporator includes an evaporator shell 1, a support frame 2 is fixedly installed at the bottom of the evaporator shell 1 to support and fix the evaporator shell 1 to ensure its smooth operation, a steam outlet 3 is provided on the top of the evaporator shell 1 for discharging the generated steam, a liquid inlet 4 is provided on the left side of the evaporator shell 1, through which the liquid to be evaporated can be transported to the inside of the evaporator, a liquid outlet 5 is provided at the bottom of the evaporator shell 1 for discharging the evaporated liquid residue, a stepper motor 6 is fixedly installed on the top of the evaporator shell 1, and the stepper motor 6 can rotate forward and backward, and four U-shaped heating tubes 7 are provided inside the evaporator shell 1, four The U-shaped heating tube 7 is evenly distributed in a ring shape. A driving screw 8 is fixedly installed at the output end of the stepper motor 6. When the stepper motor 6 is working, it can drive the driving screw 8 to rotate. The U-shaped heating tube 7 is connected to the driving screw 8 through a connecting assembly, driving the U-shaped heating tube 7 to move up and down on the driving screw 8. The heating position and distance of the U-shaped heating tube 7 are adjusted so that it can contact liquids at different liquid levels to achieve a heating and evaporation effect. An observation window is provided on the front of the evaporator housing 1 to facilitate the operator to observe the liquid level inside the evaporator housing 1. A temperature sensor is installed on the side surface of the evaporator housing 1 to monitor and control the stable temperature inside the evaporator.

[0027] In the embodiment, four support rods 9 are fixedly connected to the inner wall of the evaporator housing 1, and a round seat 10 is fixedly connected to the end of the support rod 9 away from the evaporator housing 1. The round seat 10 is fixed to the four support rods 9. A circular groove is provided on the top of the round seat 10. The bottom end of the drive screw 8 is rotatably connected to the inside of the circular groove. The bottom end of the drive screw 8 is supported by the round seat 10 to ensure the stability of the drive screw 8 during rotation without shaking or instability. The support rods 9 are arranged at an angle to provide additional support force and increase the stability of the overall structure. The round seat 10 is located above the support rods 9.

[0028] In the embodiment, the connecting component includes a threaded sleeve 11, two circular rings 12 and a limiting circular ring 13. The threaded sleeve 11, the two circular rings 12 and the limiting circular ring 13 are all arranged in concentric circles. The inner diameters of the two circular rings 12 are different. By selecting the circular rings 12 of appropriate size, it can adapt to U-shaped heating tubes 7 of different diameters, and make the U-shaped heating tube 7 fit closely with the connecting component to achieve a better fixing effect. The threaded sleeve 11, the circular ring 12 and the limiting circular ring 13 are connected and fixed by a connecting rod 14, so that the threaded sleeve 11 can drive the circular ring 12 and the limiting circular ring 13 to move together during the movement, thereby adjusting the position height of the U-shaped heating tube 7. The two ends of the U-shaped heating tube 7 are respectively fixed to the bottom of the two circular rings 12.

[0029] In the embodiment, the evaporator shell 1 is arranged in a cylindrical shape, and a guide bar 15 is fixedly connected to the inner wall of the evaporator shell 1, and a guide groove 16 is provided on the side surface of the limiting ring 13. There are four guide bars 15 and four guide grooves 16. The guide bar 15 is located inside the guide groove 16. The limiting ring 13 can be guided and limited by the guide bar 15 so that it can only move up and down, thereby ensuring the axial movement of the connecting component on the driving screw 8, and at the same time ensuring the stability of the connecting component and the U-shaped heating tube 7, preventing them from loosening or shifting during use, thereby ensuring the working effect and safety of the evaporator.

[0030] In the embodiment, both upper and lower ends of the driving screw 8 are set with smooth surfaces, the thread on the driving screw 8 is located in the middle position, and the side surface of the driving screw 8 is fixedly connected with two limit sleeves, which are respectively located on the upper and lower sides of the thread. The moving distance of the thread sleeve 11 can be limited by the limit sleeves. When the stepping motor 6 rotates forward and reverse, the thread sleeve 11 can be driven to move up and down on the driving screw 8.

[0031] In this embodiment, a U-shaped stirring rod 17 is fixedly connected to the side surface of the drive screw 8. The two ends of the U-shaped stirring rod 17 are located on the left and right sides of the U-shaped heating tube 7, respectively. The U-shaped stirring rod 17 is located below the U-shaped heating tube 7. By driving the drive screw 8 to drive the U-shaped stirring rod 17 to rotate, it can contact and stir the liquid inside the evaporator, promoting uniform heating of the liquid and preventing localized overheating or underheating. The movement of the U-shaped stirring rod 17 also destroys the thin film on the surface of the liquid, preventing solute scaling or deposition on the surface. This helps maintain the normal operation of the evaporator and avoids blockage or damage.

[0032] The use process of this utility model is as follows:

[0033] The liquid is transported from the liquid inlet 4 to the inside of the evaporator shell 1, and then the position height of the U-shaped heating tube 7 is adjusted according to the internal liquid level height. The stepper motor 6 is turned on, and its operation drives the driving screw 8 to rotate on the round seat 10, and at the same time drives the U-shaped stirring rod 17 to rotate, so as to stir the liquid so that it can be heated evenly. The limiting ring 13 is positioned by the guide bar 15, and the driving screw 8 rotates to drive the threaded sleeve 11 to move up and down. At the same time, under the action of the early connecting rod 14, the ring 12, the limiting ring 13 and the U-shaped heating tube 7 can be driven to move together, so that the U-shaped heating tube 7 can contact the liquid at different positions and heights to achieve a heating effect.

[0034] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0035] The above shows and describes the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are merely preferred examples of the present invention and are not intended to limit the present invention. Various changes and improvements may be made to the present invention without departing from the spirit and scope of the present invention, and such changes and improvements fall within the scope of the present invention. The scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An evaporator, comprising an evaporator housing (1), characterized in that: A support frame (2) is fixedly mounted on the bottom of the evaporator housing (1), a steam outlet (3) is provided on the top of the evaporator housing (1), a liquid inlet (4) is provided on the left side of the evaporator housing (1), and a liquid outlet (5) is provided on the bottom of the evaporator housing (1). A stepper motor (6) is fixedly mounted on the top of the evaporator housing (1), four U-shaped heating tubes (7) are provided inside the evaporator housing (1), and a driving screw (8) is fixedly mounted on the output end of the stepper motor (6). The U-shaped heating tube (7) is connected to the driving screw (8) via a connecting assembly, so that the U-shaped heating tube (7) can be driven to move up and down on the driving screw (8).

2. An evaporator according to claim 1, characterized in that: Four support rods (9) are fixedly connected to the inner side wall of the evaporator housing (1), and a round seat (10) is fixedly connected to one end of the support rod (9) away from the evaporator housing (1). The round seat (10) is fixed to the four support rods (9), and a round groove is provided on the top of the round seat (10). The bottom end of the driving screw (8) is rotatably connected to the inside of the round groove. The support rod (9) is arranged in an inclined manner, and the round seat (10) is located above the support rod (9).

3. The evaporator according to claim 1, characterized in that: The connecting assembly comprises a threaded sleeve (11), two circular rings (12) and a limiting circular ring (13); the threaded sleeve (11), the two circular rings (12) and the limiting circular ring (13) are all arranged in concentric circles; the inner diameters of the two circular rings (12) are different; the threaded sleeve (11), the circular ring (12) and the limiting circular ring (13) are connected and fixed by a connecting rod (14); and the two ends of the U-shaped heating tube (7) are respectively fixed to the bottom of the two circular rings (12).

4. An evaporator according to claim 3, characterized in that: The evaporator shell (1) is cylindrical in shape, and a guide bar (15) is fixedly connected to the inner side wall of the evaporator shell (1). A guide groove (16) is provided on the side surface of the limiting ring (13), and the guide bar (15) is located inside the guide groove (16).

5. The evaporator according to claim 1, characterized in that: The upper and lower ends of the driving screw (8) are both provided with smooth surfaces, the thread on the driving screw (8) is located in the middle position, and the side surface of the driving screw (8) is fixedly connected to two limiting sleeves, which are respectively located on the upper and lower sides of the thread.

6. The evaporator according to claim 1, characterized in that: A U-shaped stirring rod (17) is fixedly connected to the side surface of the driving screw (8), and the two ends of the U-shaped stirring rod (17) are respectively located on the left and right sides of the U-shaped heating tube (7), and the U-shaped stirring rod (17) is located below the U-shaped heating tube (7).

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