Waste heat utilization evaporator

Abstract

The utility model relates to the technical field of evaporator equipment, in particular to a waste heat utilization evaporator which comprises a shell and a plurality of bolts, the top and the bottom of the shell are both fixedly connected with end sockets, a hot material pipe and a guide rotating plate are fixedly connected in the shell, the guide rotating plate is located in the hot material pipe, and the hot material pipe is fixedly connected with the end sockets. The hot material pipe comprises a first coiled pipe, a second coiled pipe, a feeding pipe and a discharging pipe, and the outer surface of the first coiled pipe and the outer surface of the second coiled pipe are connected to the interior of the shell through corresponding bolts. The shaft spiral plate rotates under the impact of steam, so that liquid water is driven to rotate, the flow direction of the liquid water is changed, the liquid water is in a turbulent and disordered state, the standing time of the liquid water on the horizontal plane is prolonged, more heat is absorbed, the steam drives the shaft spiral plate to rotate, kinetic energy is consumed, and the water-saving effect is achieved. And impact on the inner wall of the shell and the hot material pipe is relieved, and the problem that water vapor vibrates more violently is solved conveniently.

Description

Technical Field

[0001] The utility model relates to the technical field of evaporator equipment, in particular to a waste heat utilization evaporator. Background Art

[0002] The evaporator is an object that converts liquid substances into gaseous substances. In the production process, some separated liquid oil by-products carry a higher temperature, and directly discharging them wastes heat energy. The heat of the liquid oil is utilized through the evaporator to save energy. Some existing evaporators utilize waste heat by heating water, but the evaporation of water will cause the evaporator to vibrate violently, which is not conducive to the stable operation of the evaporator. Utility Model Content

[0003] In order to solve the strong vibration, the utility model provides a waste heat utilization evaporator.

[0004] The utility model provides a waste heat utilization evaporator adopts the following technical solution:

[0005] A waste heat utilization evaporator comprises a shell and a plurality of bolts, wherein the top and bottom of the shell are fixedly connected with a head, the interior of the shell is fixedly connected with a hot material pipe and a guide rotating plate, and the guide rotating plate is located inside the hot material pipe.

[0006] By adopting the above technical solution, the heat transfer oil exchanges heat with the water in the shell through the hot material pipe, so that the liquid water is converted into water vapor mixed with gas and liquid. The kinetic energy of the water vapor is reduced by the guide turn plate, thereby reducing the impact on the inner wall of the shell and the hot material pipe, reducing the vibration amplitude, and improving the stability of the evaporator operation.

[0007] Preferably, the hot material pipe includes serpentine tube 1, serpentine tube 2, a feed pipe and a discharge pipe, the outer surfaces of serpentine tube 1 and serpentine tube 2 are connected to the inside of the shell by corresponding bolts, the discharge pipe is fixedly connected to the outer surface of the shell, and the feed pipe is fixedly connected to the outer surface of the corresponding head.

[0008] Preferably, one end of the serpentine tube one and the serpentine tube two are fixedly connected to the inside of the feed pipe, and the other end of the serpentine tube one and the serpentine tube two are fixedly connected to the inside of the discharge pipe, and the height of the feed pipe is lower than the height of the discharge pipe.

[0009] By adopting the above technical solution, serpentine tube 1 and serpentine tube 2 increase the heat dissipation area of ​​the heat transfer oil, thereby facilitating the maximum heat exchange between liquid water and the heat transfer oil in a shorter time. At the same time, the serpentine-shaped ring tube reduces the vibration caused by water vapor through the curvature, thereby enhancing the stability of the evaporator.

[0010] Preferably, the guide rotating plate comprises a through-hole plate and a shaftless spiral plate, the top end of the shaftless spiral plate is rotatably connected to the bottom end of the through-hole plate, and the outer surface of the through-hole plate is fixedly connected to the interior of the shell.

[0011] By adopting the above technical solution, the shaftless spiral plate rotates under the impact of steam, thereby driving the liquid water to rotate, causing the flow direction of the liquid water to change, presenting a turbulent and chaotic state, thereby prolonging the residence time of the liquid water on the horizontal plane, and thereby absorbing more heat.

[0012] Preferably, two liquid level gauges are fixedly connected to the outer surface of the shell, and the discharge pipe is located between the two liquid level gauges.

[0013] By adopting the above technical solution, the current water flow and steam position are confirmed by the liquid level meter, which is convenient for controlling the water flow and preventing the bottom of the steam pipe from being blocked due to excessive liquid level.

[0014] Preferably, a manhole, a steam pipe and a safety valve are fixedly connected to the top of one of the heads, and a pressure gauge is fixedly connected to the pipeline of the safety valve; a support seat, a water inlet pipe and a sewage pipe are fixedly connected to the bottom of the other head, and the interiors of the water inlet pipe and the sewage pipe are connected.

[0015] By adopting the above technical solution, two heads are connected to the steam pipe and the water inlet pipe, so that liquid water at room temperature is converted into steam, absorbing the heat of the heat transfer oil and slowing down the expansion caused by the hot oil. The manhole is convenient for repairing the inside of the evaporator, and the air pressure inside the evaporator is maintained by the safety valve.

[0016] In summary, the utility model has the following beneficial technical effects:

[0017] 1. This device is equipped with a shaftless spiral plate. The shaft spiral plate rotates under the impact of steam, thereby driving the liquid water to rotate, causing the flow direction of the liquid water to change, presenting a turbulent and turbulent state, prolonging the residence time of the liquid water on the horizontal plane, and then absorbing more heat. The steam drives the shaft spiral plate to rotate, consuming kinetic energy, slowing down the impact on the inner wall of the shell and the hot material pipe, and conveniently solving the problem of excessive and violent vibration of water vapor;

[0018] 2. The device is provided with a hot material pipe. Both serpentine tube 1 and serpentine tube 2 are curved spiral annular coils. The heat transfer oil is located inside serpentine tube 1 and serpentine tube 2, and moves from bottom to top. The heat of the heat transfer oil heats the water to generate steam. Serpentine tube 1 and serpentine tube 2 are fixed by built-in bolts, which solves the thermal expansion of the hot oil. At the same time, the vibration caused by water vapor is slowed down by the curvature, thereby enhancing the stability of the evaporator. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1This is a schematic diagram of the structure of a waste heat utilization evaporator in a top view of the utility model;

[0020] Figure 2 This is a front view of the internal structure of a waste heat utilization evaporator of the utility model after the guide rotating plate is removed;

[0021] Figure 3 yes Figure 2 A top view of

[0022] Figure 4 This is a schematic diagram of the structure of a hot material pipe in a waste heat utilization evaporator of the utility model;

[0023] Figure 5 The utility model is a structural schematic diagram of a guide rotating plate in a waste heat utilization evaporator.

[0024] Description of reference numerals:

[0025] 1. Shell; 2. Head;

[0026] 3. Hot material pipe; 31. Serpentine pipe 1; 32. Serpentine pipe 2; 33. Feed pipe; 34. Discharge pipe;

[0027] 4. Guide rotating plate; 41. Through-hole plate; 42. Shaftless spiral plate; 5. Bolts; 6. Liquid level gauge; 7. Manhole; 8. Steam pipe; 9. Safety valve; 10. Support seat. DETAILED DESCRIPTION

[0028] The following is combined with Figure 1-5 The utility model is described in further detail.

[0029] The utility model embodiment discloses a waste heat utilization evaporator.

[0030] Reference Figure 1 , 2 , 3, comprising a shell 1 and a plurality of bolts 5, the top and bottom of the shell 1 are fixedly connected with a head 2, the interior of the shell 1 is fixedly connected with a hot material pipe 3 and a guide rotating plate 4, the hot material pipe 3 is introduced into the oil by-product that needs to be used for waste heat utilization, the guide rotating plate 4 is located inside the hot material pipe 3, the hot material pipe 3 is bolted to the interior of the shell 1 by the bolts 5, the kinetic energy of the water vapor is consumed by the guide rotating plate 4, and the impact of the water vapor on the interior of the shell 1 is reduced.

[0031] Reference Figure 1 , 34. The hot material pipe 3 includes a serpentine pipe 1 31, a serpentine pipe 2 32, a feed pipe 33 and a discharge pipe 34. The serpentine pipe 1 31 and the serpentine pipe 2 32 are both curved spiral annular coils. The outer surfaces of the serpentine pipe 1 31 and the serpentine pipe 2 32 are connected to the interior of the shell 1 by corresponding bolts 5. The discharge pipe 34 is fixedly connected to the outer surface of the shell 1, and the feed pipe 33 is fixedly connected to the outer surface of the corresponding head 2.

[0032] Reference Figure 1 , 3 4. One ends of the serpentine tube 1 31 and the serpentine tube 2 32 are fixedly connected to the inside of the feed pipe 33, the serpentine tube 1 31 is located inside the serpentine tube 2 32, the shaftless spiral plate 42 is located inside the serpentine tube 1 31, and the through-hole plate 41 is located above the discharge pipe 34. The other ends of the serpentine tube 1 31 and the serpentine tube 2 32 are fixedly connected to the inside of the discharge pipe 34. The height of the feed pipe 33 is lower than the height of the discharge pipe 34. The heat transfer oil flows upward along the annular coil from the bottom of the serpentine tube 1 31 and the serpentine tube 2 32 at the same time, which can effectively alleviate the thermal expansion of the high-temperature hot oil, and at the same time increase the heat exchange area between the heat transfer oil and the liquid water, enhance the heat exchange effect, exchange heat with the liquid water in the shell 1, and then output the heat transfer oil after heat exchange from the discharge pipe 34.

[0033] Reference Figure 5 The guide rotating plate 4 includes a through-hole plate 41 and a shaftless spiral plate 42. The shaftless spiral plate 42 reduces its own weight, which facilitates the buoyancy of water vapor passing through the water body, and drives the shaftless spiral plate 42 to rotate. While removing the power of water vapor, the flow state of liquid water is changed, so that the liquid water changes from directional flow to unnecessary turbulence, so that the high-temperature heat transfer oil and the low-temperature liquid water in each area can exchange more heat. The top end of the shaftless spiral plate 42 is rotatably connected to the bottom of the through-hole plate 41, and the water vapor escapes into the head 2 at the top of the shell 1 through the through holes in the through-hole plate 41, and then leaves the evaporator through the steam pipe 8. The outer surface of the through-hole plate 41 is fixedly connected to the inside of the shell 1.

[0034] Reference Figure 2 Two liquid level gauges 6 are fixedly connected to the outer surface of the shell 1. The two liquid level gauges 6 are installed on the outside of the shell 1 in the same vertical direction. The discharge pipe 34 is located between the two liquid level gauges 6. After the liquid water rises to the position of the higher liquid level gauge 6, the flow rate of the liquid water injection is adjusted so that the liquid water always maintains this height, so that the liquid water cools the heat transfer oil throughout the process. When the liquid water is injected to the height of the lower liquid level gauge 6, the heat transfer oil can be introduced into the hot material pipe 3 to start heat exchange.

[0035] Reference Figure 1 , 2A manhole 7, a steam pipe 8 and a safety valve 9 are fixedly connected to the top of one of the heads 2. Maintenance personnel can enter the evaporator through the manhole 7 to repair and replace the internal parts of the evaporator. When the air pressure inside the shell 1 reaches the threshold, the safety valve 9 is opened to avoid safety accidents of the evaporator. The steam pipe 8 guides the steam to leave the shell 1. A pressure gauge is fixedly connected to the pipeline of the safety valve 9, and the pressure gauge monitors the air pressure inside the shell 1 in real time.

[0036] Reference Figure 2 The bottom of the other head 2 is fixedly connected with a support base 10, a water inlet pipe and a sewage pipe. The insides of the water inlet pipe and the sewage pipe are connected. The support base 10 helps the evaporator to be placed on the ground. The water inlet pipe introduces low-temperature liquid water into the inside of the head 2 and the shell 1. The long-term generation of water vapor causes scale to adhere to the inner wall of the evaporator. After cleaning the scale on the inner wall of the evaporator, the sewage flows out from the sewage pipe.

[0037] The implementation principle of a waste heat utilization evaporator in the embodiment of the utility model is:

[0038] 1. First, inject liquid water from the water inlet pipe. The liquid water slowly rises from the bottom of the head 2 to the inside of the shell 1. After the liquid water rises to the position of the highest liquid level gauge 6, adjust the flow rate of the liquid water injection so that the liquid water cools the heat transfer oil throughout the process;

[0039] 2. Then, heat transfer oil is introduced from the feed pipe 33, and the heat transfer oil flows upward from the bottom of the serpentine tube 1 31 and the serpentine tube 2 32 along the annular coil to exchange heat with the liquid water in the shell 1, and then the heat transfer oil after heat exchange is output from the discharge pipe 34;

[0040] 3. After absorbing the heat of the heat transfer oil, the liquid water turns into water vapor, which escapes upward and leaves the shell 1 and the head 2 through the steam pipe 8. When water vapor is generated, the air pressure inside the evaporator is changed, and the shaftless spiral plate 42 of the guide turn plate 4 rotates under the impact of the steam, thereby driving the liquid water to rotate, so that the flow direction of the liquid water changes, presenting a turbulent and turbulent state, prolonging the residence time of the liquid water in the horizontal plane, and then absorbing more heat. When the steam drives the shaftless spiral plate 42 to rotate, kinetic energy is consumed, which reduces the impact on the inner wall of the shell and the hot material pipe 3, and conveniently solves the problem of excessive and violent vibration of water vapor.

[0041] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A waste heat utilization evaporator, characterized in that: The invention comprises a shell (1) and a plurality of bolts (5); the top and bottom of the shell (1) are fixedly connected to a head (2); the interior of the shell (1) is fixedly connected to a hot material pipe (3) and a guide rotating plate (4); the guide rotating plate (4) is located inside the hot material pipe (3).

2. The waste heat utilization evaporator according to claim 1, characterized in that: The hot material pipe (3) comprises a serpentine pipe 1 (31), a serpentine pipe 2 (32), a feed pipe (33) and a discharge pipe (34); the outer surfaces of the serpentine pipe 1 (31) and the serpentine pipe 2 (32) are connected to the interior of the shell (1) via corresponding bolts (5); the discharge pipe (34) is fixedly connected to the outer surface of the shell (1); and the feed pipe (33) is fixedly connected to the outer surface of the corresponding head (2).

3. The waste heat utilization evaporator according to claim 2, characterized in that: One end of the serpentine tube 1 (31) and the serpentine tube 2 (32) are both fixedly connected to the inside of the feed pipe (33), and the other end of the serpentine tube 1 (31) and the serpentine tube 2 (32) are both fixedly connected to the inside of the discharge pipe (34), and the height of the feed pipe (33) is lower than the height of the discharge pipe (34).

4. The waste heat utilization evaporator according to claim 3, characterized in that: The guide rotating plate (4) comprises a through-hole plate (41) and a shaftless spiral plate (42), the top end of the shaftless spiral plate (42) is rotatably connected to the bottom of the through-hole plate (41), and the outer surface of the through-hole plate (41) is fixedly connected to the inside of the housing (1).

5. The waste heat utilization evaporator according to claim 4, characterized in that: Two liquid level gauges (6) are fixedly connected to the outer surface of the shell (1), and the discharge pipe (34) is located between the two liquid level gauges (6).

6. The waste heat utilization evaporator according to claim 5, characterized in that: A manhole (7), a steam pipe (8) and a safety valve (9) are fixedly connected to the top of one of the sealing heads (2), and a pressure gauge is fixedly connected to the pipeline of the safety valve (9).

7. The waste heat utilization evaporator according to claim 6, characterized in that: The bottom of the other sealing head (2) is fixedly connected to a support seat (10), a water inlet pipe and a sewage discharge pipe, and the insides of the water inlet pipe and the sewage discharge pipe are connected.

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