Efficient evaporator device

Abstract

The utility model discloses an efficient evaporator device, which belongs to the technical field of evaporators and comprises an upper tube box, a middle tube box and a sight glass opening, an expansion joint cylinder is arranged on the surface of the middle tube box, and a first steam outlet tube opening is arranged on the surface of the expansion joint cylinder; by arranging the sealing ring, the sealing groove, the sealing insertion ring, the connecting pipe, the steam return pipe and the arc-shaped protection plate, the sealing insertion ring is inserted into the inner wall of the sealing groove formed in the sealing ring, so that the connecting pipe is connected and sealed with the first steam outlet pipe opening and the second steam outlet pipe opening; at the moment, a steam return pipe fixedly connected with the connecting pipe is also connected with the first steam outlet pipe opening and the second steam outlet pipe opening, and at the moment, part of steam in the steam device flows to the upper pipe box through the steam return pipe, so that feed liquid in the upper pipe box can be preheated; and meanwhile, the situation that steam is directly exhausted into air to cause steam loss is also avoided, and the situation that resources are wasted is also avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of evaporators, and particularly relates to an efficient evaporator device. Background Art

[0002] Evaporation is a physical process of converting liquid into gas. Generally speaking, an evaporator is an object that converts liquid substances into gas. There are a large number of evaporators in industry. In the process of directly producing ammonium sulfate by multi-effect evaporation and crystallization, an efficient evaporator is a key and important device among them.

[0003] The existing efficient evaporator device sends the mother liquor into the upper tube box from the feed port, and then into the heat exchange tube bundle of the heat exchanger. When the mother liquor flows through the heat exchange tube, it fully exchanges heat with the steam outside the tube. After that, the mother liquor vertically flows downward into the lower tube box, then enters the lower-stage separator through the d port, flows out from the d port through the circulation pump, and then enters the upper tube box from the feed port. This cycle continues. A large amount of steam will be generated when the efficient evaporator device is in use. Most of the steam of the evaporator will exchange heat with the liquid in the evaporator. A part of the excess steam of the evaporator will be directly discharged into the air through the steam pipe. At this time, a part of the steam of the evaporator cannot be recycled inside the steam generator, which not only causes steam loss but also causes a certain amount of resource waste. Therefore, an efficient evaporator device is needed to solve the above problems. Summary of the Utility Model

[0004] The purpose of the utility model is to provide an efficient evaporator device to solve the problems raised in the above background art.

[0005] To achieve the above object, the utility model provides the following technical solution: An efficient evaporator device, including an upper tube box, a middle tube box and a sight glass port. An expansion joint cylinder is provided on the surface of the middle tube box. A first steam outlet pipe is provided on the surface of the expansion joint cylinder. A second steam outlet pipe is provided on the surface of the middle tube box. A circulation device is arranged on the surfaces of the first steam outlet pipe and the second steam outlet pipe. The circulation device includes a sealing ring, which is fixedly connected to the first steam outlet pipe and the second steam outlet pipe. A sealing groove is opened inside the sealing ring. A sealing insert ring is inserted into the inner wall of the sealing groove. One side of the sealing insert ring away from the middle tube box is fixedly connected with a connecting pipe. A steam return pipe is fixedly connected inside the connecting pipe. Six fixing blocks are fixedly connected to the surface of the connecting pipe. A clamping groove is opened inside the fixing block. The surfaces of the first steam outlet pipe and the second steam outlet pipe are slidably connected with a sliding ring. Six clamping plates are fixedly connected to the surface of the sliding ring. The size and shape of the outer surface of the clamping plate are adapted to the size and shape of the inner wall of the clamping groove. The clamping plate is clamped with the fixing block. An arc-shaped protective plate is fixedly connected to the top of the clamping plate. A steam inlet is provided on the surface of the expansion joint cylinder. A steam impact plate is arranged inside the steam inlet. A non-condensable gas outlet is provided on the surface of the middle tube box. A condensate outlet is provided on the surface of the sight glass port. Three sight glass interfaces are provided on the surface of the middle tube box. A heating chamber temperature sensor interface is provided on the surface of the middle tube box. A vacuum pressure gauge interface is provided on the surface of the middle tube box. A d port is provided on the surface of the middle tube box.

[0006] By setting the above structure, the sealing insert ring is inserted into the inner wall of the sealing groove opened in the sealing ring to realize the connection and sealing between the connecting pipe and the first steam outlet pipe and the second steam outlet pipe. At this time, the steam return pipe fixedly connected to the connecting pipe is also connected to the first steam outlet pipe and the second steam outlet pipe. At this time, a part of the steam inside the steam generator will flow to the upper tube box through the steam return pipe, which can preheat the liquid in the upper tube box, and at the same time avoid the situation of steam loss caused by direct discharge of steam into the air and the waste of resources. The connection and fixation between the clamping plate and the clamping groove can provide a stable fixing force and limiting function for the connecting pipe, the first steam outlet pipe and the second steam outlet pipe, so that they will not shake and loosen easily. At the same time, the arc-shaped protective plate can protect the clamping plate and the fixing block, and can also isolate the temperature from the evaporator for the clamping plate and the fixing block.

[0007] As a preferred scheme, a feed inlet is provided at the top of the upper tube box, and a lower tube box is provided at the bottom of the middle tube box.

[0008] As a preferred scheme, bolts are clamped inside the upper tube box and the feed inlet, and upper and lower tube plates are arranged inside the middle tube box.

[0009] As a preferred solution, a plurality of heat exchange tube bundles are provided inside the middle tube box.

[0010] As a preferred solution, a liquid level gauge interface is provided on the surface of the middle tube box, and a liquid temperature sensor information interface is provided on the surface of the middle tube box.

[0011] As a preferred solution, a liquid inlet is provided on the surface of the middle tube box, and a discharge port is provided at the bottom of the middle tube box.

[0012] By providing heat exchange tube bundles and sight glass interfaces, the high-efficiency evaporator equipment uses duplex stainless steel S22053 material, which has the characteristics of durability, easy operation, high degree of automation, easy cleaning, convenient observation and monitoring, energy saving and high efficiency, novel design, advanced technology, etc. It can also change the following parameters according to the changes in working conditions: equipment diameter, number of heat exchange tubes, length of heat exchange tubes, equipment material, number and position of sight glasses, number of pressure and temperature monitoring positions.

[0013] Compared with the prior art, the beneficial effects of the present utility model are:

[0014] In the present utility model, by providing a sealing ring, a sealing groove, a sealing insert ring, a connecting pipe, a steam return pipe and an arc-shaped protection plate, the sealing insert ring is inserted into the inner wall of the sealing groove opened in the sealing ring to realize the connection and sealing of the connecting pipe with the first steam outlet pipe and the second steam outlet pipe. At this time, the steam return pipe fixedly connected to the connecting pipe is also connected to the first steam outlet pipe and the second steam outlet pipe. At this time, a part of the steam inside the steam generator will flow through the steam return pipe to the upper tube box, which can preheat the liquid in the upper tube box, and at the same time avoid the situation of steam loss caused by directly discharging steam into the air and the situation of resource waste. The connection and fixation between the clamping plate and the clamping groove can provide a stable fixing force and a limiting function for the connecting pipe, the first steam outlet pipe and the second steam outlet pipe, so that they will not easily shake and loosen. At the same time, the arc-shaped protection plate can protect the clamping plate and the fixing block, and can also isolate the clamping plate and the fixing block from the temperature from the evaporator.

[0015] In the present utility model, by providing heat exchange tube bundles and sight glass interfaces, the high-efficiency evaporator equipment uses duplex stainless steel S22053 material, which has the characteristics of durability, easy operation, high degree of automation, easy cleaning, convenient observation and monitoring, energy saving and high efficiency, novel design, advanced technology, etc. It can also change the following parameters according to the changes in working conditions: equipment diameter, number of heat exchange tubes, length of heat exchange tubes, equipment material, number and position of sight glasses, number of pressure and temperature monitoring positions. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a front three-dimensional structural schematic diagram of the present utility model;

[0017] Figure 2 This is a front view three-dimensional structural schematic diagram of the tube sheet in the present utility model;

[0018] Figure 3 This is a front sectional structural schematic diagram of the present utility model;

[0019] Figure 4 This is a structural schematic diagram of the circulation device of the present utility model;

[0020] Figure 5 This is a front sectional structural schematic diagram of the circulation device of the present utility model.

[0021] In the figure: 1. Upper tube sheet; 2. Feed inlet; 3. Middle tube sheet; 4. Lower tube sheet; 5. Bolt; 6. Upper and lower tube plates; 7. Heat exchange tube bundle; 8. Sight glass port; 9. Circulation device; 901. Sealing ring; 902. Sealing groove; 903. Sealing insertion ring; 904. Connecting pipe; 905. Steam return pipe; 906. Fixed block; 907. Card slot; 908. Slip ring; 909. Card plate; 910. Arc-shaped protective plate; 10. Liquid level gauge interface; 11. Information interface of liquid temperature sensor; 12. Liquid inlet; 13. Discharge port; 14. Expansion joint cylinder; 15. First steam outlet pipe; 16. Second steam outlet pipe; 17. Steam inlet; 18. Steam impact plate; 19. Non-condensable gas outlet; 20. Condensate outlet; 21. Sight glass interface; 22. Heating chamber temperature sensor interface; 23. Vacuum pressure gauge interface; 24. D port. Specific embodiments

[0022] The following describes the present utility model in further detail with reference to embodiments.

[0023] The following embodiments are used to illustrate the present utility model, but cannot be used to limit the protection scope of the present utility model. The conditions in the embodiments can be further adjusted according to specific conditions. Any simple improvement of the method of the present utility model under the premise of the concept of the present utility model belongs to the scope of protection required by the present utility model.

[0024] Please refer to Figures 1-5, the present utility model provides an efficient evaporator device, including an upper tube box 1, a middle tube box 3 and a sight glass port 8. An expansion joint cylinder 14 is provided on the surface of the middle tube box 3. The expansion joint cylinder 14 belongs to an external guide cylinder, which is extremely beneficial for improving the flow direction, flow rate and diversion of the steam entering the shell side. A first steam outlet pipe port 15 is provided on the surface of the expansion joint cylinder 14, and a second steam outlet pipe port 16 is provided on the surface of the middle tube box 3. A circulation device 9 is arranged on the surfaces of the first steam outlet pipe port 15 and the second steam outlet pipe port 16. The circulation device 9 includes a sealing ring 901, and the sealing ring 901 is fixedly connected to the first steam outlet pipe port 15 and the second steam outlet pipe port 16. A sealing groove 902 is opened inside the sealing ring 901, and a sealing insert ring 903 is inserted into the inner wall of the sealing groove 902. One side of the sealing insert ring 903 away from the middle tube box 3 is fixedly connected to a connecting pipe 904. A steam return pipe 905 is fixedly connected inside the connecting pipe 904. Six fixing blocks 906 are fixedly connected to the surface of the connecting pipe 904. A clamping groove 907 is opened inside the fixing blocks 906. A sliding ring 908 is slidably connected to the surfaces of the first steam outlet pipe port 15 and the second steam outlet pipe port 16. Six clamping plates 909 are fixedly connected to the surface of the sliding ring 908. The outer surface size and shape of the clamping plate 909 are adapted to the inner wall size and shape of the clamping groove 907. The clamping plate 909 is clamped with the fixing block 906. An arc-shaped protective plate 910 is fixedly connected to the top of the clamping plate 909. A steam inlet 17 is provided on the surface of the expansion joint cylinder 14, and a steam anti-impingement plate 18 is arranged inside the steam inlet 17. The steam anti-impingement plate 18 can prevent the steam from directly scouring the heat exchange tube bundle 7, and at the same time can make the steam evenly distributed in the heat exchange tube bundle 7. A non-condensable gas outlet 19 is provided on the surface of the middle tube box 3, and the non-condensable gas outlet 19 can be used to discharge impurities and other gases. A condensate outlet 20 is provided on the surface of the sight glass port 8. Three sight glass interfaces 21 are provided on the surface of the middle tube box 3. A heating chamber temperature sensor interface 22 is provided on the surface of the middle tube box 3. A vacuum pressure gauge interface 23 is provided on the surface of the middle tube box 3. The heating chamber temperature sensor interface 22 and the vacuum pressure gauge interface 23 can observe and monitor the concentration of the mother liquor. A d pipe port 24 is provided on the surface of the middle tube box 3. By arranging the sealing ring 901, the sealing groove 902, the sealing insert ring 903, the connecting pipe 904, the steam return pipe 905 and the arc-shaped protective plate 910, the sealing insert ring 903 is inserted into the inner wall of the sealing groove 902 opened in the sealing ring 901 to realize the connection and sealing of the connecting pipe 904 with the first steam outlet pipe port 15 and the second steam outlet pipe port 16. At this time, the steam return pipe 905 fixedly connected to the connecting pipe 904 is also connected to the first steam outlet pipe port 15 and the second steam outlet pipe port 16. At this time, a part of the steam inside the steam device will flow to the upper tube box 1 through the steam return pipe 905, thereby being able to preheat the liquid in the upper tube box 1, and at the same time avoiding the situation of steam directly discharging into the air causing steam loss and also avoiding the situation of resource waste.The connection and fixation between the pallet 909 and the card slot 907 can provide a stable fixing force and a limiting function for the connecting pipe 904, the first steam outlet 15, and the second steam outlet 16, preventing them from shaking and loosening easily. At the same time, the arc-shaped protective plate 910 can protect the pallet 909 and the fixing block 906, and can also insulate the pallet 909 and the fixing block 906 from the temperature of the evaporator.

[0025] The top of the upper tube sheet 1 is provided with a feed inlet 2, and the bottom of the middle tube sheet 3 is provided with a lower tube sheet 4.

[0026] Bolts 5 are clamped inside the upper tube sheet 1 and the feed inlet 2. The elliptical head of the upper tube sheet is connected to the upper tube sheet 1 by bolts 5, which is convenient for flushing the heat exchanger nozzles during equipment maintenance to prevent blockage at the nozzles. Inside the middle tube sheet 3, there are upper and lower tube plates 6.

[0027] Inside the middle tube sheet 3, there are multiple heat exchange tube bundles 7, and the heat exchange tube bundles 7 are mainly composed of heat exchange tubes, tie rods, spacer tubes, and baffle plates.

[0028] A liquid level gauge interface 10 is provided on the surface of the middle tube sheet 3, and a liquid temperature sensor information interface 11 is provided on the surface of the middle tube sheet 3. The liquid temperature sensor information interface 11 is convenient for monitoring the mother liquor concentration situation locally and in the control room.

[0029] A liquid inlet 12 is provided on the surface of the middle tube sheet 3, and a discharge outlet 13 is provided at the bottom of the middle tube sheet 3. By setting the heat exchange tube bundle 7 and the sight glass interface 21, the high-efficiency evaporator equipment uses the duplex stainless steel S22053 material, which has the characteristics of durability, easy operation, high automation, easy cleaning, convenient observation, monitoring, energy saving and high efficiency, novel design, and advanced technology. It can also change the following parameters according to the changes in working conditions: equipment diameter, number of heat exchange tubes, length of heat exchange tubes, equipment material, number and position of sight glasses, number of pressure and temperature monitoring positions.

[0030] Working principle and usage process of the present utility model: When it is necessary to recycle and reuse a part of the steam inside the steam generator, insert the sealing insert ring 903 into the inner wall of the sealing groove 902 opened in the sealing ring 901 to achieve the connection and sealing between the connecting pipe 904 and the first steam outlet 15 and the second steam outlet 16. At this time, the steam return pipe 905 fixedly connected to the connecting pipe 904 is also connected to the first steam outlet 15 and the second steam outlet 16. Insert the other end of the steam return pipe 905 into the upper header 1 to achieve the connection and sealing with the upper header 1. At this time, slide the sliding rings 908 on the surfaces of the first steam outlet 15 and the second steam outlet 16. When the clamping plate 909 on the sliding ring 908 corresponds to the position of the clamping groove 907 opened inside the fixing block 906 on the connecting pipe 904, snap the clamping plate 909 into the inner wall of the clamping groove 907 to achieve the fixation and limitation between the connecting pipe 904 and the first steam outlet 15 and the second steam outlet 16. At the same time, the arc-shaped protection plate 910 fixedly connected to the clamping plate 909 will also move to protect the clamping plate 909 and the fixing block 906 and isolate the temperature from the evaporator. At this time, a part of the steam inside the steam generator will flow into the upper header 1 through the steam return pipe 905, thereby being able to preheat the liquid in the upper header 1.

[0031] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principle and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An efficient evaporator device, comprising an upper tube box (1), a middle tube box (3) and a sight glass port (8), characterized in that: The surface of the middle tube box (3) is provided with an expansion joint cylinder body (14). The surface of the expansion joint cylinder body (14) is provided with a first steam outlet pipe orifice (15). The surface of the middle tube box (3) is provided with a second steam outlet pipe orifice (16). A circulation device (9) is arranged on the surfaces of the first steam outlet pipe orifice (15) and the second steam outlet pipe orifice (16). The circulation device (9) includes a sealing ring (901). The sealing ring (901) is fixedly connected to the first steam outlet pipe orifice (15) and the second steam outlet pipe orifice (16). A sealing groove (902) is formed inside the sealing ring (901). A sealing insert ring (903) is inserted into the inner wall of the sealing groove (902). One side of the sealing insert ring (903) away from the middle tube box (3) is fixedly connected with a connecting pipe (904). A steam return pipe (905) is fixedly connected inside the connecting pipe (904). Six fixing blocks (906) are fixedly connected to the surface of the connecting pipe (904). A clamping groove (907) is formed inside the fixing block (906). A sliding ring (908) is slidably connected to the surfaces of the first steam outlet pipe orifice (15) and the second steam outlet pipe orifice (16). Six clamping plates (909) are fixedly connected to the surface of the sliding ring (908). The outer surface size and shape of the clamping plate (909) are adapted to the inner wall size and shape of the clamping groove (907). The clamping plate (909) is clamped with the fixing block (906). An arc-shaped protection plate (910) is fixedly connected to the top of the clamping plate (909). A steam inlet (17) is arranged on the surface of the expansion joint cylinder body (14). A steam impact-proof plate (18) is arranged inside the steam inlet (17). A non-condensable gas outlet (19) is arranged on the surface of the middle tube box (3). A condensate outlet (20) is arranged on the surface of the sight glass orifice (8). Three sight glass interfaces (21) are arranged on the surface of the middle tube box (3). A heating chamber temperature sensor interface (22) is arranged on the surface of the middle tube box (3). A vacuum pressure gauge interface (23) is arranged on the surface of the middle tube box (3). A d pipe orifice (24) is arranged on the surface of the middle tube box (3).

2. An efficient evaporator device according to claim 1, characterized in that: The top of the upper tube box (1) is provided with a feed inlet (2). The bottom of the middle tube box (3) is provided with a lower tube box (4).

3. An efficient evaporator device according to claim 2, characterized in that: Bolts (5) are clamped inside the upper tube box (1) and the feed inlet (2). Upper and lower tube plates (6) are arranged inside the middle tube box (3).

4. An efficient evaporator device according to claim 3, characterized in that: A plurality of heat exchange tube bundles (7) are arranged inside the middle tube box (3).

5. An efficient evaporator device according to claim 4, characterized in that: A liquid level gauge interface (10) is arranged on the surface of the middle tube box (3). A liquid temperature sensor information interface (11) is arranged on the surface of the middle tube box (3).

6. An efficient evaporator device according to claim 5, characterized in that: A liquid feed inlet (12) is arranged on the surface of the middle tube box (3). A discharge outlet (13) is arranged at the bottom of the middle tube box (3).

Images