Evaporator with overflow device

Abstract

The utility model discloses an evaporator with an overflow device, which particularly relates to the technical field of evaporators and comprises an evaporation barrel, a steam pipe is fixedly connected with the top of the evaporation barrel in a penetrating manner, a flow guide pipe is fixedly connected with the side surface of the bottom end of the evaporation barrel in a penetrating manner, and an electric heating pipe is fixedly inserted into the evaporation barrel. The top of the evaporation barrel is provided with an overflow mechanism used for pressure relief and a liquid collecting barrel, the top of the liquid collecting barrel is fixedly connected with an overflow pipe in a penetrating mode, the end, away from the liquid collecting barrel, of the overflow pipe is fixedly connected to the side face of the evaporation barrel, and the side face, located on the overflow pipe, of the evaporation barrel is provided with an overflow opening. A water pump and a backflow pipe are fixedly connected to the side face of the liquid collecting barrel in a penetrating mode, and a fixing shell is fixedly connected to the ends, away from the liquid collecting barrel, of the water pump and the backflow pipe in a penetrating mode. And the service life of the evaporator is shortened.

Description

Technical Field

[0001] The utility model relates to the field of evaporators, in particular to an evaporator with an overflow device. Background Art

[0002] The evaporator mainly provides the heat required for evaporation to the liquid through the heating chamber, heating the solution containing non-volatile solutes to boiling state, thereby causing part of the solvent in the liquid to vaporize and be removed, increasing the solute concentration unit in the solvent.

[0003] Although the existing evaporator with an overflow device can control the liquid to overflow by using the steam pressure in the evaporator through a steam pressure detector, this method either requires the staff to always pay attention to the changes in steam pressure and perform overflow operations, or to actively perform overflow operations when the steam detector reaches a threshold value. Both modes are based on the overflow operation only when the steam pressure in the evaporator is a critical value. When the steam pressure in the evaporator is below the critical value but higher than the normal steam pressure for a long time, it is easy to cause damage to the evaporator, thereby reducing the service life of the evaporator. Utility Model Content

[0004] The purpose of the utility model is to provide an evaporator with an overflow device to solve the above-mentioned shortcomings in the technology.

[0005] In order to achieve the above object, the utility model provides the following technical solution: an evaporator with an overflow device, comprising:

[0006] An evaporating barrel, wherein a steam pipe is fixedly connected to the top of the evaporating barrel, a flow guide pipe is fixedly connected to the side of the bottom of the evaporating barrel, an electric heating pipe is fixedly plugged into the interior of the evaporating barrel, and an overflow mechanism for pressure relief is provided on the top of the evaporating barrel;

[0007] A liquid collecting barrel, wherein an overflow pipe is passed through and fixedly connected to the top of the liquid collecting barrel, an end of the overflow pipe away from the liquid collecting barrel is fixedly connected to the side of the evaporating barrel, an overflow port is provided on the side of the overflow pipe of the evaporating barrel, a material guide pipe is passed through and fixedly connected to the top of the liquid collecting barrel, a water pump and a return pipe are passed through and fixedly connected to the side of the liquid collecting barrel, an end of the water pump and the return pipe away from the liquid collecting barrel is passed through and fixedly connected to a fixed shell, a side of the fixed shell away from the liquid collecting barrel is passed through and fixedly connected to an injection pipe, and an end of the injection pipe away from the fixed shell is passed through and fixedly connected to the side of the evaporating barrel.

[0008] Preferably, the overflow mechanism comprises a top block, a blocking block and a diverter plate, the top of the evaporator barrel is penetrated and fixedly connected with a fixed tube, the side of the top block is slidably connected to the inner wall of the fixed tube, the top of the top block is fixedly connected with a connecting rod, the surface of the connecting rod penetrates and is fixedly connected to the top of the blocking block, the end of the connecting rod away from the top block is fixedly connected to the top of the diverter plate, the inner wall of the overflow pipe is provided with a telescopic groove, the side of the blocking block is slidably connected to the inner wall of the telescopic groove, the surface of the connecting rod penetrates and is slidably connected to the top of the overflow pipe, the surface of the connecting rod away from one end of the top block is penetrated and slidably connected to the top of the fixed shell, the inner wall of the fixed shell is provided with a movable groove, the side of the diverter plate is slidably connected to the inner wall of the movable groove, the side of the diverter plate is respectively provided with an injection hole groove and a reflux hole groove, the injection hole groove and the reflux hole groove are interconnected, and the water pump, the reflux pipe and the side of the injection pipe close to the diverter plate are all slidably connected to the side of the diverter plate.

[0009] Preferably, a collar is fixedly connected through the surface of the connecting rod, a support plate is fixedly connected to the side of the evaporating barrel, and the surface of the connecting rod is slidably connected to the top of the support plate.

[0010] Preferably, an auxiliary heating tube is fixedly connected to the bottom of the inner wall of the evaporation barrel.

[0011] Preferably, a pressure relief valve is fixedly connected through the top of the evaporating barrel.

[0012] Preferably, a retaining ring is fixedly connected to the top of the fixed tube.

[0013] Preferably, the top end of the inner wall of the evaporation barrel is arc-shaped.

[0014] In the above technical solution, the technical effects and advantages provided by the utility model are:

[0015] By providing a top block, a blocking block and a diverter plate, under the linkage action of the connecting rod, the communication relationship between the injection hole groove and the reflux hole groove on the side of the diverter plate and the water pump, the reflux pipe and the injection pipe is controlled according to the steam pressure in the evaporator barrel, thereby controlling the amount of liquid injected, and at the same time controlling the closing of the blocking block and the internal channel of the overflow pipe, thereby controlling the overflow operation to achieve a better pressure relief effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present utility model. For ordinary technicians in this field, other drawings can also be obtained based on these drawings.

[0017] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a schematic cross-sectional view of the overall structure of the utility model;

[0019] Figure 3 For this utility model Figure 2 A schematic diagram of the structure enlargement in the middle;

[0020] Figure 4 It is a schematic diagram of the top block rising in the overall structure of the utility model;

[0021] Figure 5 It is a structural schematic diagram of the diverter plate of the utility model.

[0022] Description of reference numerals:

[0023] 1. Pressure relief valve; 2. Steam pipe; 3. Fixed pipe; 4. Evaporation barrel; 5. Electric heating pipe; 6. Retaining ring; 7. Connecting rod; 8. Support plate; 9. Ring; 10. Overflow pipe; 11. Material guide pipe; 12. Fixed shell; 13. Liquid collecting barrel; 14. Water pump; 15. Reflux pipe; 16. Diverter plate; 17. Auxiliary heating pipe; 18. Blocking block; 19. Top block; 20. Liquid injection pipe; 21. Liquid injection hole slot; 22. Reflux hole slot; 23. Guide pipe. DETAILED DESCRIPTION

[0024] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0025] The utility model provides Figure 1-Figure 4 An evaporator with an overflow device is shown, comprising:

[0026] An evaporating barrel 4, a steam pipe 2 is fixedly connected to the top of the evaporating barrel 4, a flow guide pipe 23 is fixedly connected to the side of the bottom end of the evaporating barrel 4, an electric heating pipe 5 is fixedly plugged into the interior of the evaporating barrel 4, and an overflow mechanism for pressure relief is provided on the top of the evaporating barrel 4;

[0027] A liquid collecting barrel 13 is provided with an overflow pipe 10 which is fixedly connected to the top of the liquid collecting barrel 13. The end of the overflow pipe 10 which is away from the liquid collecting barrel 13 is fixedly connected to the side of the evaporating barrel 4. The evaporating barrel 4 is provided with an overflow port on the side of the overflow pipe 10. A material guide pipe 11 is fixedly connected to the top of the liquid collecting barrel 13. A water pump 14 and a return pipe 15 are fixedly connected to the side of the liquid collecting barrel 13. The ends of the water pump 14 and the return pipe 15 which are away from the liquid collecting barrel 13 are fixedly connected to a fixed shell 12. A side of the fixed shell 12 which is away from the liquid collecting barrel 13 is fixedly connected to an injection pipe 20. The end of the injection pipe 20 which is away from the fixed shell 12 is fixedly connected to the side of the evaporating barrel 4, so as to realize heating, boiling, and vapor-liquid separation operations on the refrigerant liquid.

[0028] Preferably, the overflow mechanism includes a top block 19, a blocking block 18 and a diverter plate 16, the top of the evaporation barrel 4 is penetrated and fixedly connected with a fixed tube 3, the side of the top block 19 is slidably connected to the inner wall of the fixed tube 3, the top of the top block 19 is fixedly connected with a connecting rod 7, the surface of the connecting rod 7 is penetrated and fixedly connected to the top of the blocking block 18, the end of the connecting rod 7 away from the top block 19 is fixedly connected to the top of the diverter plate 16, a telescopic groove is opened on the inner wall of the overflow pipe 10, the side of the blocking block 18 is slidably connected to the inner wall of the telescopic groove, the surface of the connecting rod 7 is penetrated and slidably connected to the top of the overflow pipe 10, and the connecting rod 7 is away from the top block The surface of one end of 19 is slidably connected to the top of the fixed shell 12, the inner wall of the fixed shell 12 is provided with a movable groove, the side of the diverter plate 16 is slidably connected to the inner wall of the movable groove, the side of the diverter plate 16 is respectively provided with an injection hole groove 21 and a reflux hole groove 22, the injection hole groove 21 and the reflux hole groove 22 are interconnected, the water pump 14, the reflux pipe 15 and the injection pipe 20 are slidably connected to the side of the diverter plate 16 near the diverter plate 16, and the injection and overflow operations of the liquid can be controlled according to the steam pressure in the evaporator barrel 4 through the top block 19, the blocking block 18 and the diverter plate 16, thereby achieving a better pressure relief effect.

[0029] Preferably, a ring 9 is fixedly connected to the surface of the connecting rod 7, a support plate 8 is fixedly connected to the side of the evaporating barrel 4, and the surface of the connecting rod 7 is slidably connected to the top of the support plate 8, which can not only limit the moving trajectory of the connecting rod 7, but also increase the stability of the connecting rod 7 when it is not moving.

[0030] Preferably, an auxiliary heating pipe 17 is fixedly connected to the bottom of the inner wall of the evaporation barrel 4 to improve the heating efficiency.

[0031] Preferably, a pressure relief valve 1 is fixedly connected through the top of the evaporation barrel 4 to perform a secondary pressure relief operation, thereby greatly increasing the safety of the evaporation barrel 4 during evaporation.

[0032] Preferably, a retaining ring 6 is fixedly connected to the top of the fixed tube 3 to block the top block 19 and prevent the top block 19 from detaching from 3.

[0033] Preferably, the top of the inner wall of the evaporation barrel 4 is arranged in an arc shape so that the steam is more concentrated.

[0034] Through the above technical solution:

[0035] When in use, first connect the steam pipe 2 to the external collection device, connect the guide pipe 23 to the external recovery device, connect the guide pipe 11 to the external liquid injection device, first inject the liquid to be evaporated into the liquid collection barrel 13 through the guide pipe 11, then start the electric heating pipe 5 and the auxiliary heating pipe 17, and then start the water pump 14, and the liquid in the liquid collection barrel 13 is injected into the evaporation barrel 4 through the injection hole groove 21 on the side of the diverter plate 16 and the injection pipe 20 on the side of the evaporation barrel 4 for heating operation. The water vapor generated by heating is led out from the steam pipe 2. When the steam pressure in the evaporation barrel 4 increases, at this time Due to the steam pressure difference between the inside and outside of the evaporation barrel 4, the top block 19 will gradually move upward, so that the top block 19 drives the blocking block 18 and the diverter plate 16 to gradually move upward through the connecting rod 7. At this time, the water pump 14 and the injection pipe 20 are away from the injection hole groove 21 on the side of the diverter plate 16, so that the liquid injected into the evaporation barrel 4 by the water pump 14 is reduced, and the blocking block 18 is driven by the connecting rod 7 to gradually rise, so that the channel in the overflow pipe 10 is gradually opened, and the excess liquid in the evaporation barrel 4 will flow into the liquid collecting barrel 13 along the channel of the overflow pipe 10 for collection;

[0036] When the steam pressure in the evaporation barrel 4 reaches the critical point, the top of the top block 19 contacts the bottom of the retaining ring 6, and the top block 19 stops operating. At this time, the channel of the overflow pipe 10 is completely opened, and the diverter plate 16 stops rising. At this time, the output port of the water pump 14 is aligned with the reflux hole groove 22, and the recovery port of the reflux pipe 15 is aligned with the injection hole groove 21. Since the opening of the injection hole groove 21 close to the injection pipe 20 is blocked by the inner wall of the movable groove inside the fixed shell 12, the liquid output by the water pump 14 will pass through the reflux hole groove 22 and the injection hole groove 21, and flow back from the reflux pipe 15 to the inside of the liquid collecting barrel 13; the maximum overflow effect is achieved. When the overflow mechanism cannot meet the purpose of pressure relief, the secondary pressure relief operation will be performed through the pressure relief valve 1, which greatly increases the safety of the evaporation barrel 4 during evaporation.

[0037] The above only describes some exemplary embodiments of the present invention by way of illustration. It is undoubted that those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. An evaporator with an overflow device, characterized in that: include: An evaporating barrel (4), wherein a steam pipe (2) is fixedly connected to the top of the evaporating barrel (4), a flow guide pipe (23) is fixedly connected to the side of the bottom end of the evaporating barrel (4), an electric heating pipe (5) is fixedly inserted into the interior of the evaporating barrel (4), and an overflow mechanism for pressure relief is provided at the top of the evaporating barrel (4); A liquid collecting barrel (13), wherein an overflow pipe (10) is passed through and fixedly connected to the top of the liquid collecting barrel (13), and one end of the overflow pipe (10) away from the liquid collecting barrel (13) is fixedly connected to the side of the evaporating barrel (4), and the evaporating barrel (4) is provided with an overflow port on the side of the overflow pipe (10), a material guide pipe (11) is passed through and fixedly connected to the top of the liquid collecting barrel (13), a water pump (14) and a return pipe (15) are passed through and fixedly connected to the side of the liquid collecting barrel (13), and one end of the water pump (14) and the return pipe (15) away from the liquid collecting barrel (13) is passed through and fixedly connected to a fixed shell (12), and a liquid injection pipe (20) is passed through and fixedly connected to the side of the evaporating barrel (4) on the side of the fixed shell (12) away from the liquid collecting barrel (13), and one end of the liquid injection pipe (20) away from the fixed shell (12) is passed through and fixedly connected to the side of the evaporating barrel (4).

2. The evaporator with overflow device according to claim 1, characterized in that: The overflow mechanism comprises a top block (19), a blocking block (18) and a diverter plate (16); the top of the evaporation barrel (4) is penetrated and fixedly connected with a fixed pipe (3); the side of the top block (19) is slidably connected to the inner wall of the fixed pipe (3); the top of the top block (19) is fixedly connected with a connecting rod (7); the surface of the connecting rod (7) is penetrated and fixedly connected to the top of the blocking block (18); one end of the connecting rod (7) away from the top block (19) is fixedly connected to the top of the diverter plate (16); a telescopic groove is provided on the inner wall of the overflow pipe (10); the side of the blocking block (18) is slidably connected to the inner wall of the telescopic groove; the connecting rod The surface of the connecting rod (7) is slidably connected to the top of the overflow pipe (10), the surface of the connecting rod (7) away from the top block (19) is slidably connected to the top of the fixed shell (12), the inner wall of the fixed shell (12) is provided with a movable groove, the side of the diverter plate (16) is slidably connected to the inner wall of the movable groove, the side of the diverter plate (16) is respectively provided with an injection hole groove (21) and a return hole groove (22), the injection hole groove (21) and the return hole groove (22) are interconnected, and the water pump (14), the return pipe (15) and the injection pipe (20) are slidably connected to the side of the diverter plate (16) on the side close to the diverter plate (16).

3. The evaporator with overflow device according to claim 2, characterized in that: A collar (9) is fixedly connected to the surface of the connecting rod (7), a support plate (8) is fixedly connected to the side of the evaporating barrel (4), and the surface of the connecting rod (7) is slidably connected to the top of the support plate (8).

4. The evaporator with overflow device according to claim 1, characterized in that: An auxiliary heating pipe (17) is fixedly connected to the bottom of the inner wall of the evaporation barrel (4).

5. The evaporator with overflow device according to claim 1, characterized in that: A pressure relief valve (1) is fixedly connected through the top of the evaporation barrel (4).

6. The evaporator with overflow device according to claim 2, characterized in that: A retaining ring (6) is fixedly connected to the top of the fixed tube (3).

7. The evaporator with overflow device according to claim 1, characterized in that: The top end of the inner wall of the evaporation barrel (4) is arranged in an arc shape.

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