Efficient evaporator with natural circulation flow

Abstract

According to the design, two sets of demisting silk screens are symmetrically arranged in the middle of a rotating disc, when the demisting silk screen on one side needs to be cleaned, a motor can be started, and the rotating disc is made to rotate under the cooperation of a worm and a worm gear till the positions of the two sets of demisting silk screens are exchanged; the demisting silk screen on the other side replaces the demisting silk screen and continues to work, meanwhile, the demisting silk screen which is originally attached with impurities rotates to the position below the spraying head, at the moment, an inlet pipe can be externally connected with a water source, and a clean water source can sequentially pass through the inlet pipe and the upper bracket and is sprayed to the surfaces of the demisting silk screens from the spraying head to complete cleaning. Meanwhile, a water source can fall into the storage tank after cleaning, the water source in the storage tank can be discharged outwards through a delivery pipe after a second valve is opened, compared with a comparison file, cleaning work can be completed without disassembling and assembling the demisting silk screens, and meanwhile the two sets of demisting silk screens can be kept to work alternately in the cleaning process period so as to meet the requirement for work continuity.

Description

Technical Field

[0001] This utility model relates to the field of evaporator technology, specifically to a high-efficiency evaporator with natural circulation. Background Technology

[0002] A high-efficiency evaporator with natural circulation is a device that utilizes the principle of natural circulation for evaporation. Its working principle is based on the uneven density of different parts of the solution under heating, and the movement of vapor driving the liquid, thus creating circulation. This type of evaporator does not require external power; it relies on the density difference between the liquid and the feed to achieve natural circulation. Although the circulation speed is not high, it is sufficient to meet evaporation requirements.

[0003] Most high-efficiency evaporators with natural circulation currently on the market have a demister screen on the top of the evaporator to prevent mist from being trapped. However, the surface of the demister screen accumulates a certain amount of impurities during long-term use. At this time, the demister screen needs to be removed from the evaporator and cleaned. This not only makes the disassembly and cleaning process of the demister screen time-consuming, but also prevents the demister screen from continuing to work during the cleaning process. Utility Model Content

[0004] To address the problem that the existing technology involves a lengthy disassembly and cleaning process for the defogging wire mesh, and that the defogging wire mesh cannot continue to function during the cleaning process.

[0005] This utility model provides the following technical solution:

[0006] This utility model discloses a high-efficiency evaporator with natural circulation flow, comprising an evaporator separation chamber, an evaporator heating chamber disposed on the side of the evaporator separation chamber, a connecting pipe fixedly connected between the evaporator separation chamber and the evaporator heating chamber, a waste liquid pipe fixedly connected vertically inside the evaporator heating chamber, a concentrated liquid discharge pipe fixedly connected to the bottom of the evaporator heating chamber, a feed liquid circulation pipe fixedly connected to the outside of the evaporator separation chamber, a heat source supply pipe fixedly connected to the top of the evaporator separation chamber, the end of the heat source supply pipe away from the evaporator separation chamber being fixedly connected to the evaporator heating chamber, a steam compressor fixedly installed outside the heat source supply pipe, a switching assembly disposed inside the evaporator separation chamber, the switching assembly including a rotatable rotating disk, diaphragm screens symmetrically fixedly connected to the center of the rotating disk, a rinsing assembly disposed above the rotating disk inside the evaporator separation chamber for rinsing and cleaning the diaphragm screens on one side, and a discharge assembly disposed below the rotating disk inside the evaporator separation chamber for recovering and discharging the rinsed liquid.

[0007] As a preferred embodiment of the present invention, the rinsing assembly includes an upper support, which is fixedly connected to the inner wall of the evaporator separation chamber, and a first sealing ring is fixedly connected to one side of the upper support.

[0008] As a preferred technical solution of this utility model, the rinsing assembly further includes a spray head, each of which is connected to the interior of the upper support and is fixedly connected to the bottom of the upper support. The rinsing assembly also includes an inlet pipe, which is fixedly connected to the side wall of the evaporator separation chamber. One end of the inlet pipe is connected to the interior of the upper support, and the other end of the inlet pipe is located outside the evaporator separation chamber. The rinsing assembly also includes a first valve, which is fixedly installed on the outside of the inlet pipe.

[0009] As a preferred embodiment of this utility model, the switching assembly includes a bracket, which is symmetrically and fixedly connected inside the upper support. The switching assembly also includes a worm gear, which is rotatably connected to the middle of the two sets of brackets. The switching assembly also includes a motor, which is fixedly installed on the outside of one side of the bracket, and the output end of the motor is fixedly connected to the worm gear.

[0010] As a preferred technical solution of this utility model, the switching component further includes a rotating shaft, which is rotatably connected inside the upper support. The bottom of the rotating shaft is fixedly connected to the rotating disk, and a worm gear is fixedly connected to the outside of the rotating shaft. The worm gear is in contact with the worm and is meshed and rotatably connected.

[0011] As a preferred embodiment of this utility model, the discharge assembly includes a lower support, which is fixedly connected to the inner wall of the evaporator separator chamber and is located below the motor. A second sealing ring is fixedly connected to one side of the lower support, and the second sealing ring is in contact with the motor.

[0012] As a preferred technical solution of this utility model, the discharge assembly further includes a storage tank, which is opened on the top of the lower support. The size of the lower support matches that of the demister mesh. The discharge assembly also includes a delivery pipe, which is fixedly connected to the side wall of the evaporator separation chamber. One end of the delivery pipe is connected to the storage tank, and the other end of the delivery pipe is located outside the evaporator separation chamber. A second valve is fixedly installed on the top of the delivery pipe.

[0013] The beneficial effects of this utility model are:

[0014] This type of high-efficiency evaporator with natural circulation features two sets of demister screens symmetrically arranged in the center of a rotating disc. When cleaning is required on one side of the demister screen, the motor is started, and the rotating disc rotates in conjunction with the worm gear and worm wheel until the positions of the two sets of demister screens are reversed. The other set of demister screens replaces the first set and continues to work. At the same time, the demister screen with impurities attached rotates to the area below the spray head. At this point, a water source can be connected to the inlet pipe. The cleaning water will pass through the inlet pipe and the upper support in sequence and be sprayed onto the surface of the demister screen from the spray head to complete the cleaning. After cleaning, the water will fall into the storage tank. Opening the second valve allows the water in the storage tank to be discharged out through the outlet pipe. Compared to the comparative document, this design can complete the cleaning work without disassembling the demister screens. At the same time, the two sets of demister screens can be kept working alternately during the cleaning process to ensure work continuity. Attached Figure Description

[0015] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof.

[0016] In the attached diagram:

[0017] Figure 1 This is a schematic diagram of the overall structure of a high-efficiency evaporator with natural circulation flow according to this utility model;

[0018] Figure 2 yes Figure 1 Enlarged view of region A;

[0019] Figure 3 This is a schematic diagram of the switching component of a high-efficiency evaporator with natural circulation flow according to this utility model;

[0020] Figure 4 This is a schematic diagram of the flushing assembly of a high-efficiency evaporator with natural circulation flow according to this utility model;

[0021] Figure 5 This is a schematic diagram of the discharge assembly of a high-efficiency evaporator with natural circulation flow according to the present invention;

[0022] In the diagram: 1. Evaporator heating chamber; 11. Waste liquid pipe; 12. Concentrate discharge pipe; 2. Connecting pipe; 3. Evaporator separation chamber; 4. Feed liquid circulation pipe; 5. Heat source supply pipe; 51. Steam compressor; 6. Switching assembly; 61. Motor; 611. Worm gear; 62. Bracket; 63. Shaft; 631. Worm wheel; 64. Rotary disc; 641. Demisting screen; 7. Flushing assembly; 71. Upper support; 711. First sealing ring; 72. Spray head; 73. Inlet pipe; 731. First valve; 8. Discharge assembly; 81. Lower support; 811. Second sealing ring; 82. Storage tank; 83. Outlet pipe; 831. Second valve. Detailed Implementation

[0023] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0024] Example 1: As Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, this utility model is a high-efficiency evaporator with natural circulation flow, including an evaporator separation chamber 3, an evaporator heating chamber 1 arranged on the side of the evaporator separation chamber 3, a connecting pipe 2 fixedly connected between the evaporator separation chamber 3 and the evaporator heating chamber 1, a waste liquid pipe 11 fixedly connected vertically inside the evaporator heating chamber 1, a concentrated liquid discharge pipe 12 fixedly connected to the bottom of the evaporator heating chamber 1, a feed liquid circulation pipe 4 fixedly connected to the outside of the evaporator separation chamber 3, and a heat source supply pipe 5 fixedly connected to the top of the evaporator separation chamber 3. The heat source supply pipe 5 is located away from the evaporator separation chamber. One end of the separation chamber 3 is fixedly connected to the evaporator heating chamber 1. A steam compressor 51 is fixedly installed on the outside of the heat source supply pipe 5. A switching component 6 is provided inside the evaporator separation chamber 3. The switching component 6 includes a rotating disk 64. A demisting mesh 641 is symmetrically fixedly connected to the middle of the rotating disk 64. A rinsing component 7 is provided inside the evaporator separation chamber 3 above the rotating disk 64 to rinse and clean the demisting mesh 641 on one side. A discharge component 8 is provided inside the evaporator separation chamber 3 below the rotating disk 64 to recover and discharge the rinsed liquid.

[0025] This design solves the problem in existing technologies that the disassembly and cleaning process of the defogging mesh is time-consuming, and the defogging mesh cannot continue to work during the cleaning process.

[0026] The flushing assembly 7 includes an upper support 71, which is fixedly connected to the inner wall of the evaporator separation chamber 3. A first sealing ring 711 is fixedly connected to one side of the upper support 71.

[0027] The rinsing assembly 7 also includes a spray head 72, each spray head 72 being connected to the interior of the upper support 71 and fixedly connected to the bottom of the upper support 71. The rinsing assembly 7 also includes an inlet pipe 73, which is fixedly connected to the side wall of the evaporator separation chamber 3. One end of the inlet pipe 73 is connected to the interior of the upper support 71, and the other end of the inlet pipe 73 is located outside the evaporator separation chamber 3. The rinsing assembly 7 also includes a first valve 731, which is fixedly installed outside the inlet pipe 73.

[0028] By opening and closing the first valve 731, external water can flow in from the inlet pipe 73 and be sprayed onto the surface of the demisting mesh 641 from the spray head 72 after passing through the upper support 71. This design can complete the rinsing of the demisting mesh 641.

[0029] The switching component 6 includes a bracket 62, which is symmetrically and fixedly connected inside the upper support 71. The switching component 6 also includes a worm gear 611, which is rotatably connected to the middle of the two sets of brackets 62. The switching component 6 also includes a motor 61, which is fixedly installed on the outside of one side of the bracket 62. The output end of the motor 61 is fixedly connected to the worm gear 611.

[0030] The switching component 6 also includes a rotating shaft 63, which is rotatably connected inside the upper support 71. The bottom of the rotating shaft 63 is fixedly connected to the rotating disk 64. A worm gear 631 is fixedly connected to the outside of the rotating shaft 63. The worm gear 631 is in contact with the worm 611 and is meshed and rotatably connected.

[0031] By starting the motor 61, the motor 61 can drive the worm 611 to rotate. At this time, the worm wheel 631 meshing on one side of the worm 611 can rotate synchronously, and the rotating disk 64 fixedly connected to the bottom of the rotating shaft 63 can rotate.

[0032] This design allows for the replacement of positions between the two sets of defogging wire mesh 641.

[0033] The discharge assembly 8 includes a lower support 81, which is fixedly connected to the inner wall of the evaporator separation chamber 3 and is located below the motor 61. A second sealing ring 811 is fixedly connected to one side of the lower support 81, and the second sealing ring 811 is in contact with the motor 61.

[0034] The discharge assembly 8 also includes a storage tank 82, which is located on the top of the lower support 81. The lower support 81 is sized to match the demister mesh 641. The discharge assembly 8 also includes a delivery pipe 83, which is fixedly connected to the side wall of the evaporator separation chamber 3. One end of the delivery pipe 83 is connected to the storage tank 82, and the other end of the delivery pipe 83 is located outside the evaporator separation chamber 3. A second valve 831 is fixedly installed on the top of the delivery pipe 83.

[0035] The water source after rinsing the demisting wire mesh 641 will fall into the storage tank 82. By opening the second valve 831, the water source in the storage tank 82 can be quickly discharged out through the delivery pipe 83.

[0036] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A high-efficiency evaporator with natural circulation flow, comprising an evaporator separation chamber (3), characterized in that, The evaporator separation chamber (3) is provided with an evaporator heating chamber (1) on the side, the evaporator separation chamber (3) and the evaporator heating chamber (1) are fixedly connected with a communication pipe (2) in the middle, a waste liquid pipe (11) is fixedly connected vertically in the evaporator heating chamber (1), a concentrated liquid discharge pipe (12) is fixedly connected at the bottom of the evaporator heating chamber (1), a liquid feed lower circulation pipe (4) is fixedly connected outside the evaporator separation chamber (3), a heat source supply pipe (5) is fixedly connected at the top of the evaporator separation chamber (3), the heat source supply pipe (5) is fixedly connected with the evaporator heating chamber (1) at the end away from the evaporator separation chamber (3), a steam compressor (51) is fixedly installed outside the heat source supply pipe (5), a switching assembly (6) is arranged in the evaporator separation chamber (3), the switching assembly (6) comprises a rotatable rotating disc (64), the rotating disc (64) is fixedly connected with a demisting wire mesh (641) symmetrically in the middle, a flushing assembly (7) capable of flushing and cleaning the single-side demisting wire mesh (641) is arranged above the rotating disc (64) in the evaporator separation chamber (3), and a discharge assembly (8) capable of recycling and discharging the liquid after flushing is arranged below the rotating disc (64) in the evaporator separation chamber (3).

2. A high-efficiency evaporator with natural circulation flow as claimed in claim 1 wherein, The flushing assembly (7) comprises an upper support (71), which is fixedly connected at the inner wall of the evaporator separation chamber (3), and a first sealing ring (711) is fixedly connected on one side of the upper support (71).

3. A high-efficiency evaporator with natural circulation flow as claimed in claim 1 wherein, The flushing assembly (7) further comprises a spray head (72), each spray head (72) is communicated with the inside of the upper support (71), the spray head (72) is fixedly connected at the bottom of the upper support (71), the flushing assembly (7) further comprises an inlet pipe (73), the inlet pipe (73) is fixedly connected at the side wall of the evaporator separation chamber (3), one end of the inlet pipe (73) is communicated with the inside of the upper support (71), the other end of the inlet pipe (73) is located outside the evaporator separation chamber (3), and the flushing assembly (7) further comprises a first valve (731), which is fixedly installed outside the inlet pipe (73).

4. A high-efficiency evaporator with natural circulation flow as claimed in claim 1 wherein, The switching assembly (6) comprises a bracket (62), which is fixedly connected symmetrically in the inside of the upper support (71), the switching assembly (6) further comprises a worm (611), which is rotatably connected in the middle of the two groups of brackets (62), the switching assembly (6) further comprises a motor (61), which is fixedly installed outside one side of the bracket (62), and the output end of the motor (61) is fixedly connected with the worm (611).

5. A high-efficiency evaporator with natural circulation flow as claimed in claim 1 wherein, The switching assembly (6) further comprises a rotating shaft (63), which is rotatably connected in the inside of the upper support (71), the rotating shaft (63) is fixedly connected with the rotating disc (64) at the bottom, a worm wheel (631) is fixedly connected outside the rotating shaft (63), and the worm wheel (631) is rotatably connected in meshing contact with the worm (611).

6. A high-efficiency evaporator with natural circulation flow as claimed in claim 1 wherein, The discharge assembly (8) comprises a lower support (81) fixedly connected at the inner wall of the evaporator separation chamber (3) below the motor (61), one side of the lower support (81) is fixedly connected with a second sealing ring (811) in contact with the motor (61).

7. A high-efficiency evaporator with natural circulation flow as claimed in claim 1 wherein, The discharge assembly (8) further comprises an accumulation tank (82) opened at the top of the lower support (81), the lower support (81) is matched in size with the demisting mesh (641), and the discharge assembly (8) further comprises a delivery pipe (83) fixedly connected at the side wall of the evaporator separation chamber (3), one end of the delivery pipe (83) is in communication with the accumulation tank (82), the other end of the delivery pipe (83) is located outside the evaporator separation chamber (3), and a second valve (831) is fixedly installed at the top of the delivery pipe (83).

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