Sodium sulfate MVR (mechanical vapor recompression) evaporative crystallization device
By designing a sodium sulfate MVR evaporation and crystallization device, the secondary utilization of water vapor and the safe extraction mechanism of servo motors are used to solve the problems of heat energy waste and operation safety during the evaporation and crystallization of sodium sulfate, and the energy efficiency and operation safety are improved. .
Patent Information
- Application Number
- CN202420958161.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-07
- Publication Date
- 2024-12-24
- Estimated Expiration
- 2034-05-07
AI Technical Summary
During the evaporation and crystallization of sodium sulfate, water vapor is directly discharged into the air, resulting in waste of heat energy. It is difficult for the prior art to effectively utilize steam heat, increasing energy consumption.
A sodium sulfate MVR evaporation and crystallization device was designed, and the water vapor generated during the evaporation was introduced into the second shell through the air conduit, and the sodium sulfate solution was used for secondary utilization, and the evaporation was safely removed through the servo motor and the rod mechanism. to avoid contact with high temperatures.
The secondary utilization of water vapor is achieved, the energy utilization rate is improved, energy consumption is reduced, and the operator is protected through a safe extraction mechanism to avoid the risk of scalds.
Smart Images
Figure CN222218626U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of evaporation and crystallization, and in particular relates to a sodium sulfate MVR evaporation and crystallization device. Background Art
[0002] MVR is the abbreviation of mechanical vapor recompression technology, which uses the secondary steam and its energy generated by the evaporation system itself to upgrade low-quality steam into a high-quality steam heat source through the mechanical work of the compressor. This cycle provides heat energy to the evaporation system, thereby reducing the demand for external energy, an energy-saving technology.
[0003] When sodium sulfate solution is evaporated and crystallized, water vapor is generated. The current evaporation process mostly discharges the water vapor directly into the air, which is a waste of the water vapor and the heat energy in the water vapor. Utility Model Content
[0004] In order to solve the above problems, the purpose of the utility model is to provide a sodium sulfate MVR evaporation crystallization device.
[0005] To achieve the above-mentioned purpose, the utility model proposes a sodium sulfate MVR evaporation crystallization device, comprising a base plate, the upper surface of the base plate is fixedly connected to an evaporating cylinder, a cylinder cover is placed on the upper end of the evaporating cylinder, the upper surface of the cylinder cover is fixedly connected to an input pipe, the input pipe passes through the cylinder cover, the upper end of the input pipe is fixedly connected to a transfer tank, the upper end of the transfer tank is connected to a hose, a valve is installed at one end of the input pipe inside the transfer tank, the outer side of the transfer tank is fixedly connected to a second shell, the outer side of the second shell is fixedly connected to a plurality of air ducts, the air ducts are connected to the second shell, the air ducts are fixedly connected to the cylinder cover, the air ducts pass through the cylinder cover, and air holes are provided on the upper surface of the second shell.
[0006] In one example, the installation position of the air duct and the second shell is located below the second shell, the shape of the air duct is bent, and the second shell is made of heat-insulating material.
[0007] In one example, the inner wall of the evaporating cylinder is fixedly connected to a fixing ring, the lower surface of the fixing ring is fixedly connected to an isolating cylinder, the fixing ring has the same inner diameter as the isolating cylinder, an evaporating dish is placed in the fixing ring, the outer diameter of the evaporating dish is the same as the inner diameter of the fixing ring, the isolating cylinder and the transfer tank are both made of heat-conducting materials, and one side of the evaporating cylinder is connected to a steam delivery pipe and a steam output pipe.
[0008] In one example, the inner wall of the cylinder cover is fixedly connected to two fixed blocks, and opposite sides of the two fixed blocks are fixedly connected to a horizontal plate, and a slot is provided on the horizontal plate. The upper surface of the evaporating dish is fixedly connected to an annular plate, and the upper surface of the fixed ring is fixedly connected to two vertical plates, and opposite sides of the two vertical plates are fixedly connected to support plates, and the lower surfaces of the two support plates are fixedly connected to plug rods, and the plug rods cooperate with the slots.
[0009] In one example, the annular plate is made of heat-insulating material.
[0010] In one example, the side of the evaporating cylinder is fixedly connected to a fixing plate, the lower surface of the fixing plate is fixedly connected to a servo motor, the main shaft of the servo motor is fixedly connected to a threaded rod, the side of the cylinder cover is fixedly connected to a control board, the control board is threadedly connected to the threaded rod, and the threaded rod passes through the control board.
[0011] In one example, the side of the evaporating cylinder is fixedly connected to a support plate, one side of the cylinder cover is fixedly connected to a square plate, the upper surface of the square plate is fixedly connected to a guide rod, and the guide rod passes through the square plate and is slidably connected to the square plate.
[0012] The sodium sulfate MVR evaporation crystallization device proposed by the utility model can bring the following beneficial effects:
[0013] First, by providing a second shell and a transfer tank, the sodium sulfate solution evaporates and crystallizes in the evaporation cylinder. During the evaporation process, the water in the sodium sulfate solution is converted into water vapor, which rises and enters the second shell through a plurality of air guide pipes under the cylinder cover. The water vapor has a certain temperature. After entering the second shell, the temperature in the second shell is increased, and the heat is transferred to the transfer tank to preheat the sodium sulfate solution in the transfer tank, and the steam generated by the crystallization is reused for a second time, which is more energy-saving.
[0014] Secondly, by setting the plug rod and the horizontal plate, the evaporating dish and the cylinder cover are plugged in. When the crystals need to be taken out, just move the cylinder cover upward, and the cylinder cover drives the evaporating dish away from the evaporating cylinder. The staff can hold the annular plate to remove the evaporating dish from the cylinder cover. The staff does not need to put their hands into the evaporating cylinder to avoid over-high temperature and scalding the staff. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.
[0016] In the attached picture:
[0017] Figure 1 It is a structural schematic diagram of a sodium sulfate MVR evaporation crystallization device of the utility model.
[0018] Figure 2 It is a structural schematic diagram of a sodium sulfate MVR evaporation crystallization device of the utility model.
[0019] Figure 3 It is a structural schematic diagram of a sodium sulfate MVR evaporation crystallization device of the utility model.
[0020] Figure 4 It is a structural schematic diagram of a sodium sulfate MVR evaporation crystallization device of the utility model.
[0021] In the figure: 1, bottom plate; 2, evaporating cylinder; 3, cylinder cover; 4, input pipe; 5, transfer tank; 6, hose; 7, valve; 8, second shell; 9, air guide pipe; 10, fixing ring; 11, isolation cylinder; 12, evaporating dish; 13, steam delivery pipe; 14, steam output pipe; 15, fixing block; 16, horizontal plate; 17, annular plate; 18, support plate; 19, plug rod; 20, fixing plate; 21, servo motor; 22, threaded rod; 23, control board; 24, support plate; 25, vertical plate; 26, square plate; 27, guide rod. DETAILED DESCRIPTION
[0022] In order to more clearly illustrate the overall concept of the present invention, a detailed description is given below in the form of examples in conjunction with the accompanying drawings.
[0023] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "axial", "radial", "circumferential" and the like indicating orientations or positional relationships are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0024] In addition, the terms "first" and "second" are used for descriptive purposes only and should not 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" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0025] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0026] In the present utility model, unless otherwise clearly specified and limited, the first feature "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description of reference terms "one scheme", "some schemes", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the scheme or example are included in at least one scheme or example of the present utility model. In this specification, the schematic representation of the above terms does not necessarily refer to the same scheme or example. Moreover, the specific features, structures, materials or characteristics described may be combined in a suitable manner in any one or more schemes or examples.
[0027] like Figure 1 to Figure 4 As shown, the embodiment of the utility model proposes a sodium sulfate MVR evaporation crystallization device, including a bottom plate 1, the upper surface of the bottom plate 1 is fixedly connected to an evaporation tube 2, a tube cover 3 is placed on the upper end of the evaporation tube 2, an input pipe 4 is fixedly connected to the upper surface of the tube cover 3, the input pipe 4 passes through the tube cover 3, the upper end of the input pipe 4 is fixedly connected to a transfer tank 5, the upper end of the transfer tank 5 is connected to a hose 6, a valve 7 is installed at one end of the input pipe 4 inside the transfer tank 5, the outer side of the transfer tank 5 is fixedly connected to a second shell 8, the outer side of the second shell 8 is fixedly connected to a plurality of air guide pipes 9, the air guide pipes 9 are connected to the second shell 8, the air guide pipes 9 are fixedly connected to the tube cover 3, the air guide pipes 9 pass through the tube cover 3, and air holes are arranged on the upper surface of the second shell 8; sodium sulfate The solution enters the transfer tank 5 through the hose 6. When evaporation is performed, the control valve 7 opens the input pipe 4 and enters the evaporation cylinder 2. Then the valve 7 is closed and the same volume of sodium sulfate solution is injected into the transfer tank 5 through the hose 6 for standby use, waiting for the second evaporation and crystallization. The sodium sulfate solution evaporates and crystallizes in the evaporation cylinder 2. During the evaporation process, the water in the sodium sulfate solution is converted into water vapor. The water vapor rises and enters the second shell 8 through the multiple air guide pipes 9 under the cylinder cover 3. The water vapor has a certain temperature. After entering the second shell 8, the temperature in the second shell 8 is increased, and the heat is transferred to the transfer tank 5 to preheat the sodium sulfate solution in the transfer tank 5. The steam generated by the crystallization is reused for a second time, which is more energy-efficient.
[0028] Specifically, the installation position of the air duct 9 and the second shell 8 is located below the second shell 8. The air duct 9 is bent and the second shell 8 is made of heat-insulating material. The water vapor in the air duct 9 enters the second shell 8 from below the second shell 8, so that the water vapor can completely contact the transfer tank 5 and then float out from the second shell 8, which has a better heating effect on the transfer tank 5. The air duct 9 is bent to prevent the condensed water vapor from flowing back into the evaporating tube 2 and wetting the sodium sulfate solution crystals.
[0029] Specifically, the inner wall of the evaporating cylinder 2 is fixedly connected to the fixing ring 10, and the lower surface of the fixing ring 10 is fixedly connected to the isolating cylinder 11. The inner diameters of the fixing ring 10 and the isolating cylinder 11 are the same. An evaporating dish 12 is placed in the fixing ring 10, and the outer diameter of the evaporating dish 12 is the same as the inner diameter of the fixing ring 10. The materials of the isolating cylinder 11 and the transfer tank 5 are both heat-conducting materials. One side of the evaporating cylinder 2 is connected to the steam delivery pipe 13 and the steam output pipe 14; the evaporating dish 12 is located in the isolating cylinder 11, and one end of the steam delivery pipe 13 and the steam output pipe 14 are connected to the multiple-effect evaporator. The steam enters the evaporating cylinder 2 through the steam output pipe 14, and then returns to the multiple-effect evaporator through the steam delivery pipe 13. After being processed, it is passed into the evaporating cylinder 2 for use. The steam is located between the evaporating cylinder 2 and the isolating cylinder 11 in the evaporating cylinder 2. The heat heats the evaporating dish 12 through the isolating cylinder 11, and then the solution is crystallized, and the steam will not be lost, which is more economical.
[0030] Specifically, the inner wall of the cylinder cover 3 is fixedly connected to two fixing blocks 15, and the opposite sides of the two fixing blocks 15 are fixedly connected to the horizontal plate 16, and the horizontal plate 16 is provided with a slot. The upper surface of the evaporating dish 12 is fixedly connected to the annular plate 17, and the upper surface of the fixing ring 10 is fixedly connected to two vertical plates 25, and the opposite sides of the two vertical plates 25 are fixedly connected to the support plates 18, and the lower surfaces of the two support plates 18 are fixedly connected to the plug rods 19, and the plug rods 19 cooperate with the slots; the evaporating dish 12 is plugged into the cylinder cover 3, and when the crystal needs to be taken out, it only needs to move the cylinder cover 3 upward, and the cylinder cover 3 drives the evaporating dish 12 to leave the evaporating cylinder 2, and the staff does not need to take it out manually, so as to avoid excessive temperature and scalding the staff.
[0031] Specifically, the annular plate 17 is made of heat-insulating material; after the evaporating dish 12 is taken out, the staff can hold the annular plate 17 to remove the evaporating dish 12 from the cylinder cover 3 to avoid burns.
[0032] Specifically, the side of the evaporating cylinder 2 is fixedly connected to the fixing plate 20, the lower surface of the fixing plate 20 is fixedly connected to the servo motor 21, the main shaft of the servo motor 21 is fixedly connected to the threaded rod 22, and the side of the cylinder cover 3 is fixedly connected to the control board 23, the control board 23 is threadedly connected to the threaded rod 22, and the threaded rod 22 penetrates the control board 23; when the evaporating dish 12 needs to be taken out, the servo motor 21 drives the threaded rod 22 to rotate, and the threaded rod 22 controls the cylinder cover 3 to be lifted up through the control board 23, thereby driving the evaporating dish 12 to leave the evaporating cylinder 2, which is more convenient.
[0033] Specifically, the side of the evaporating tube 2 is fixedly connected to the support plate 24, the support plate 24 is fixedly connected to the guide plate 25, one side of the tube cover 3 is fixedly connected to the square plate 26, the upper surface of the square plate 26 is fixedly connected to the guide rod 27, the guide rod 27 penetrates the square plate 26 and is slidably connected to the square plate 26; when the threaded rod 22 controls the tube cover 3 to move upward, it can only move up and down under the constraint of the guide rod 27, so as to avoid the tube cover 3 and the evaporating tube 2 from being misaligned, resulting in failure to automatically reset.
[0034] Working principle: The servo motor 21 drives the threaded rod 22 to rotate, and the threaded rod 22 controls the cylinder cover 3 to be lifted up through the control panel 23, and the plug rod 19 on the evaporating dish 12 is inserted into the slot. The servo motor 21 controls the cylinder cover 3 to reset and cover the evaporating cylinder 2. The sodium sulfate solution enters the transfer tank 5 through the hose 6. When evaporation is performed, the control valve 7 opens the input pipe 4 and enters the evaporating cylinder 2. Then the valve 7 is closed, and the same volume of sodium sulfate solution is injected into the transfer tank 5 through the hose 6 for standby use, waiting for the second evaporation and crystallization. The steam enters the evaporating cylinder 2 through the steam output pipe 14, and then through the steam input pipe 14. The delivery pipe 13 returns to the multiple-effect evaporator, is processed, and then is passed into the evaporation tube 2 for use. The steam is located between the evaporation tube 2 and the isolation tube 11 in the evaporation tube 2. The heat is used to heat the evaporation dish 12 through the isolation tube 11, and then the solution is crystallized. During the evaporation process, the water in the sodium sulfate solution is converted into water vapor. The water vapor rises and enters the second shell 8 through the multiple air guide pipes 9 under the tube cover 3. The water vapor has a certain temperature. After entering the second shell 8, the temperature in the second shell 8 is increased, and the heat is transferred to the transfer tank 5 to preheat the sodium sulfate solution in the transfer tank 5.
[0035] Each embodiment in this specification is described in a progressive manner, and the same or similar parts between the embodiments can be referred to each other, and each embodiment focuses on the differences from other embodiments. In particular, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the relevant parts can be referred to the partial description of the method embodiment.
[0036] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.
Claims
1. A sodium sulfate MVR evaporation crystallization device, characterized in that: The invention comprises a bottom plate (1), the upper surface of the bottom plate (1) is fixedly connected to an evaporating tube (2), a tube cover (3) is placed on the upper end of the evaporating tube (2), the upper surface of the tube cover (3) is fixedly connected to an input pipe (4), the input pipe (4) passes through the tube cover (3), the upper end of the input pipe (4) is fixedly connected to a transfer tank (5), the upper end of the transfer tank (5) is connected to a hose (6), a valve (7) is installed at one end of the input pipe (4) inside the transfer tank (5), the outer side of the transfer tank (5) is fixedly connected to a second shell (8), the outer side of the second shell (8) is fixedly connected to a plurality of air guide pipes (9), the air guide pipes (9) are connected to the second shell (8), the air guide pipes (9) are fixedly connected to the tube cover (3), the air guide pipes (9) pass through the tube cover (3), and air holes are provided on the upper surface of the second shell (8).
2. A sodium sulfate MVR evaporation crystallization device according to claim 1, characterized in that, The installation position of the air guide tube (9) and the second shell (8) is located below the second shell (8); the shape of the air guide tube (9) is bent, and the second shell (8) is made of heat-insulating material.
3. A sodium sulfate MVR evaporation crystallization device according to claim 1, characterized in that, The inner wall of the evaporation cylinder (2) is fixedly connected to a fixing ring (10), the lower surface of the fixing ring (10) is fixedly connected to an isolating cylinder (11), the fixing ring (10) and the isolating cylinder (11) have the same inner diameter, an evaporation dish (12) is placed in the fixing ring (10), the outer diameter of the evaporation dish (12) is the same as the inner diameter of the fixing ring (10), the isolating cylinder (11) and the transfer tank (5) are both made of heat-conducting materials, and one side of the evaporation cylinder (2) is connected to a steam delivery pipe (13) and a steam output pipe (14).
4. A sodium sulfate MVR evaporation crystallization device according to claim 3, characterized in that, The inner wall of the cylinder cover (3) is fixedly connected to two fixing blocks (15), and opposite sides of the two fixing blocks (15) are fixedly connected to a transverse plate (16), and a slot is provided on the transverse plate (16). The upper surface of the evaporating dish (12) is fixedly connected to an annular plate (17), and the upper surface of the fixing ring (10) is fixedly connected to two vertical plates (25), and opposite sides of the two vertical plates (25) are fixedly connected to a support plate (18), and the lower surfaces of the two support plates (18) are fixedly connected to an insertion rod (19), and the insertion rod (19) matches the slot.
5. A sodium sulfate MVR evaporation crystallization device according to claim 4, characterized in that, The annular plate (17) is made of heat-insulating material.
6. A sodium sulfate MVR evaporation crystallization device according to claim 1, characterized in that, The side of the evaporating cylinder (2) is fixedly connected to a fixing plate (20), the lower surface of the fixing plate (20) is fixedly connected to a servo motor (21), the main shaft of the servo motor (21) is fixedly connected to a threaded rod (22), the side of the cylinder cover (3) is fixedly connected to a control board (23), the control board (23) is threadedly connected to the threaded rod (22), and the threaded rod (22) passes through the control board (23).
7. A sodium sulfate MVR evaporation crystallization device according to claim 1, characterized in that, The side of the evaporating cylinder (2) is fixedly connected to a support plate (24), one side of the cylinder cover (3) is fixedly connected to a square plate (26), the upper surface of the square plate (26) is fixedly connected to a guide rod (27), and the guide rod (27) passes through the square plate (26) and is slidably connected to the square plate (26).