Heating device of resin tower regeneration wastewater heating salt dissolving system

Abstract

The utility model provides a heating device of a resin tower regeneration wastewater heating salt dissolving system, which is suitable for the technical field of salt dissolving of saline water, and adopts the scheme that the heating device comprises a storage tank and a bottom plate, saline water is placed in the storage tank, and the bottom plate is arranged below the storage tank; the heating mechanism is installed in the storage tank and used for heating saline water to the needed temperature, the heating mechanism comprises a heater and a heating pipe, and by installing the storage tank, the bottom plate, the heater and the heating pipe, the saline water can be heated through resin tower regeneration waste water, the heater is moved out of the storage tank, and the saline water is heated to the needed temperature. The heater is overhauled and maintained, so that the convenience of the heating device is improved; the device is also suitable for the field of salt dissolving of salt water.

Description

Technical Field

[0001] The utility model relates to the technical field of brine desalination, in particular to a heating device of a heating system for reheating and desalting the regenerated wastewater of a resin tower. Background Art

[0002] In the process of brine desalination, a heating device is required. The brine heating device is a device specifically designed to quickly dissolve and heat the salt in the brine. This device is usually used in industrial, laboratory or specific application environments where rapid heating and desalination of brine are required.

[0003] In the prior art, the brine heating device usually relies on electric heating tubes or steam heating to achieve temperature rise. However, these traditional methods fail to make full use of the wastewater generated during the regeneration process of the resin tower as an auxiliary heat source, which not only causes serious waste of steam condensate water resources, but also reduces the convenience and efficiency of the brine heating device in use. In order to improve the energy efficiency and environmental protection performance of the device, it is necessary to improve the existing heating method so that it can more effectively use the regenerated wastewater in the resin tower as an auxiliary heating means, thereby reducing resource waste and improving the overall performance of the device.

[0004] Therefore, it is necessary to provide a new heating device for the heating system of the resin tower regenerated wastewater to solve the above technical problems. Content of the Utility Model

[0005] To solve the above technical problems, the utility model provides a heating device for a heating system of a resin tower regenerated wastewater.

[0006] The heating device for the heating system of the resin tower regenerated wastewater provided by the utility model comprises: a storage tank and a bottom plate. The interior of the storage tank is used for placing brine, and the bottom plate is arranged below the storage tank; a heating mechanism. A heating mechanism is installed inside the storage tank for heating the brine to the required temperature. The heating mechanism comprises a heater and heating tubes. The heater is slidably installed in the central area of the inner wall of the storage tank, and heating tubes are arranged around the heater and fixedly connected with the inner wall of the storage tank.

[0007] The recycled water of the resin tower in the second caustic soda workshop of the resin factory is pressurized by a pump and transported to the brine preparation process for secondary utilization in salt dissolution. The temperature of the recycled water of the resin tower is at room temperature, while the temperature for salt dissolution in the brine preparation process needs to be heated to 60°C - 65°C. The old pipelines removed from the ion-exchange membrane in the original resin factory No. 1 and the cooler of the dechlorination tower are reused. After transformation, valves for the recycled water pipeline and valves for the steam condensate pipeline of the second phase of hydrazine hydrate are added. The temperature of the recycled water of the resin tower can reach 45°C - 55°C after heat exchange and temperature rise. It is estimated that 5 tons of steam can be saved daily for salt dissolution in the brine, and calculated at a unit price of 170 yuan per ton of steam, the cost can be saved by 850 yuan per day; the steam condensate of the second phase of hydrazine hydrate is used for heat exchange. When the second phase of hydrazine hydrate stops production, the steam pipeline is closed and no steam condensate is generated, and the steam condensate required by the heat exchanger stops being supplied, and no steam will be saved in the brine salt dissolution process of the resin factory; the remote transmission of the inlet and outlet temperatures is increased, and instrument pipelines are laid to transmit data to the main control computer for continuous monitoring to ensure the control of the index of the recycled water temperature. After the heater is powered on, the electric heating tube part heats the brine inside the storage tank. The heating tube conveniently uses the steam condensate of the second phase of hydrazine hydrate, increasing the convenience of the brine heating device.

[0008] Preferably, a protective shell is fixedly connected to one side surface of the storage tank. A driving motor is fixedly installed on the inner wall of the protective shell, and the output shaft of the driving motor is rotatably connected to the inner wall of the storage tank. A limiting seat is fixedly connected to the inner wall of the storage tank, and the limiting seat is located above the heater and the heating tube. The inner wall of the circular hole of the limiting seat is rotatably connected to a stirrer, and the stirring rod part of the stirrer is located in the middle area between the heater and the heating tube. The top of the stirrer is meshed with the output shaft of the driving motor close to the limiting seat through bevel gears.

[0009] Start the driving motor on the inner wall of the protective shell. The bevel gear on the output shaft of the driving motor contacts the bevel gear on the top of the stirrer, driving the stirrer to rotate on the inner wall of the circular hole of the limiting seat. The stirring rod part of the stirrer rotates in the middle area between the heater and the heating tube. When the stirrer rotates, it will not touch the surfaces of the heater and the heating tube, stirring the brine to ensure that the brine fully contacts the electric heating tube of the heater and the surface of the heating tube, improving the heating speed of the brine.

[0010] Preferably, fixing seats are fixedly connected to both side surfaces of the heater. Electric push rods are symmetrically and fixedly connected to the upper surface of the bottom plate, and the moving ends of the electric push rods are fixedly connected to the lower surfaces of the fixing seats.

[0011] When the electric push rods contract, the moving parts of the electric push rods drive the fixing seats to move downward, driving the heater to move downward, facilitating the removal of the heater from the inside of the storage tank for maintenance and repair.

[0012] Preferably, fixing rods are symmetrically and fixedly connected to the upper surface of the heater, and the fixing rods are arranged on both sides of the electric heating tube of the heater. Sealing plates are fixedly connected to the tops of the two fixing rods, and the diameter of the sealing plate is the same as the diameter of the circular hole at the bottom of the storage tank.

[0013] After the heater is removed from the inside of the storage tank, the fixing rod and the sealing plate move downward accordingly. The sealing plate blocks the circular hole at the bottom of the storage tank. When the heater is being repaired, the brine inside the storage tank can still be heated by steam through the heating pipe. At the same time, the brine will not drain out from the circular hole at the bottom of the storage tank.

[0014] Preferably, three support rods are fixedly connected to the surface of the storage tank at equal intervals, and the bottom of the support rods is fixedly connected to the upper surface of the bottom plate.

[0015] The three support rods stably support the storage tank. During the placement of the storage tank, it will not easily shake, improving the stability of the storage tank.

[0016] Preferably, the heating pipe is designed in a spiral shape.

[0017] It can increase the contact area between the brine inside the storage tank and the surface of the heating pipe, improving the heating efficiency of the brine.

[0018] Compared with the related technology, the heating device of the resin tower regeneration waste water heating and salt dissolving system provided by the present utility model has the following beneficial effects:

[0019] The present utility model provides a heating device for a resin tower regeneration waste water heating and salt dissolving system:

[0020] 1. By installing a storage tank, a bottom plate, a heater and a heating pipe, the brine can be heated by using the resin tower regeneration waste water. The heater is removed from the inside of the storage tank for repair and maintenance, improving the convenience of the heating device.

[0021] 2. Three support rods are fixedly connected to the surface of the storage tank at equal intervals, and the bottom of the support rods is fixedly connected to the upper surface of the bottom plate. The three support rods stably support the storage tank. During the placement of the storage tank, it will not easily shake, improving the stability of the storage tank. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic diagram of the overall structure provided by the present utility model;

[0023] Figure 2 is a schematic cross-sectional view of the storage tank provided by the present utility model;

[0024] Figure 3 is an enlarged schematic diagram of the heater provided by the present utility model;

[0025] Figure 4 is a schematic diagram of the resin tower regeneration waste water heating and salt dissolving process provided by the present utility model.

[0026] Reference numerals in the figure: 1, storage tank; 2, bottom plate; 3, heater; 4, heating pipe; 5, protective shell; 6, drive motor; 7, limit seat; 8, stirrer; 9, fixed seat; 10, electric push rod; 11, fixed rod; 12, sealing plate; 13, support rod. Detailed implementation mode

[0027] The present utility model will be further described below in conjunction with the accompanying drawings and implementation modes.

[0028] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the heating device of the resin tower regeneration waste water heating and salt dissolving system includes: a storage tank 1 and a bottom plate 2, the interior of the storage tank 1 is used for placing brine, and a bottom plate 2 is arranged below the storage tank 1; a heating mechanism, a heating mechanism is installed inside the storage tank 1 for heating the brine to the required temperature, the heating mechanism includes a heater 3 and a heating pipe 4, the heater 3 is slidably installed in the central area of the inner wall of the storage tank 1, and the heating pipe 4 is arranged around the heater 3 and is fixedly connected to the inner wall of the storage tank 1.

[0029] The resin tower regeneration water in the second caustic soda workshop of the resin factory is pressurized by a machine pump and transported to the salt dissolving process of the brine process for secondary utilization. The temperature of the resin tower regeneration water is normal temperature, and the temperature required for preparing brine and dissolving salt in the brine process needs to be heated to 60°C - 65°C. The old pipeline of the ion membrane in the original resin factory No. 1 and the dechlorination tower cooler are reused. After transformation, valves for the regeneration water pipeline and valves for the steam condensate pipeline of the second stage of hydrazine hydrate are added. The temperature of the resin tower regeneration water can reach 45°C - 55°C after heat exchange and temperature rise. It is estimated that 5 tons of steam can be saved every day for salt dissolving in the brine, and calculated at a unit price of 170 yuan per ton of steam, the cost can be saved by 850 yuan every day; the heat exchange uses the steam condensate of the second stage of hydrazine hydrate. When the second stage of hydrazine hydrate stops, the steam pipeline is closed and no steam condensate is generated, and the steam condensate required by the heat exchanger stops being supplied, and the resin factory brine dissolving salt process will not save steam; the temperature at the inlet and outlet is remotely transmitted, and the instrument pipeline is laid and uploaded to the main control computer for continuous monitoring to ensure the control of the regeneration water temperature index. After the heater 3 is powered on, the electric heating pipe part heats the brine inside the storage tank 1, and the heating pipe 4 facilitates the use of the steam condensate of the second stage of hydrazine hydrate, increasing the convenience of the brine heating device.

[0030] Example 1:

[0031] In the specific implementation process, such as Figure 2As shown in the figure, a protective shell 5 is fixedly connected to one side surface of the storage tank 1. A driving motor 6 is fixedly installed on the inner wall of the protective shell 5, and the output shaft of the driving motor 6 is rotatably connected to the inner wall of the storage tank 1. A limiting seat 7 is fixedly connected to the inner wall of the storage tank 1, and the limiting seat 7 is located above the heater 3 and the heating pipe 4. The inner wall of the circular hole of the limiting seat 7 is rotatably connected to a stirrer 8, and the stirring rod part of the stirrer 8 is located in the middle area between the heater 3 and the heating pipe 4. The top of the stirrer 8 is meshed and connected to the side of the output shaft of the driving motor 6 close to the limiting seat 7 through bevel gears.

[0032] Start the driving motor 6 on the inner wall of the protective shell 5. The bevel gear on the output shaft of the driving motor 6 contacts the bevel gear on the top of the stirrer 8, driving the stirrer 8 to rotate on the inner wall of the circular hole of the limiting seat 7. The stirring rod part of the stirrer 8 rotates in the middle area between the heater 3 and the heating pipe 4. When the stirrer 8 rotates, it will not touch the surfaces of the heater 3 and the heating pipe 4, stirring the brine to ensure that the brine fully contacts the electric heating pipe of the heater 3 and the surface of the heating pipe 4, improving the heating speed of the brine.

[0033] Reference Figure 3 As shown in the figure, fixing seats 9 are fixedly connected to both side surfaces of the heater 3. Electric push rods 10 are symmetrically and fixedly connected to the upper surface of the bottom plate 2, and the moving ends of the electric push rods 10 are fixedly connected to the lower surfaces of the fixing seats 9.

[0034] When the electric push rod 10 contracts, the moving part of the electric push rod 10 drives the fixing seat 9 to move downward, driving the heater 3 to move downward, which is convenient for removing the heater 3 from the inside of the storage tank 1 for maintenance and repair.

[0035] Reference Figure 3 As shown in the figure, fixing rods 11 are symmetrically and fixedly connected to the upper surface of the heater 3, and the fixing rods 11 are arranged on both sides of the electric heating pipe of the heater 3. The tops of the two fixing rods 11 are fixedly connected to a sealing plate 12, and the diameter of the sealing plate 12 is the same as the diameter of the circular hole at the bottom of the storage tank 1.

[0036] After the heater 3 is removed from the inside of the storage tank 1, the fixing rods 11 and the sealing plate 12 move downward together. The sealing plate 12 blocks the circular hole at the bottom of the storage tank 1. When the heater 3 is being repaired, the brine inside the storage tank 1 can still be heated by steam through the heating pipe 4, and at the same time, the brine will not drain out from the circular hole at the bottom of the storage tank 1.

[0037] Reference Figure 1 As shown in the figure, three support rods 13 are fixedly connected to the surface of the storage tank 1 at equal intervals, and the bottoms of the support rods 13 are fixedly connected to the upper surface of the bottom plate 2.

[0038] The three support rods 13 stably support the storage tank 1. During the placement of the storage tank 1, it will not easily shake, improving the stability of the storage tank 1.

[0039] Embodiment 2:

[0040] Refer to Figure 2 As shown, the heating pipe 4 is designed in a threaded shape.

[0041] It can increase the contact area between the brine inside the storage tank 1 and the surface of the heating pipe 4, and improve the heating efficiency of the brine.

[0042] The above are only the embodiments of the present invention, and do not limit the patent scope of the present invention. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present invention, or directly or indirectly applied in other related technical fields, shall be equally included in the patent protection scope of the present invention.

Claims

1. A heating device for a resin tower regeneration wastewater heating and desalination system, characterized in that: include: A storage tank (1) and a bottom plate (2), wherein the storage tank (1) is used to store salt water, and a bottom plate (2) is provided below the storage tank (1); A heating mechanism is installed inside the storage tank (1) and is used to heat the salt water to a desired temperature. The heating mechanism comprises a heater (3) and a heating tube (4). The heater (3) is slidably installed in the central area of ​​the inner wall of the storage tank (1). The heating tube (4) is arranged around the heater (3), and the heating tube (4) is fixedly connected to the inner wall of the storage tank (1).

2. The heating device for heating and desalination system of resin tower regeneration wastewater according to claim 1 is characterized in that: A protective shell (5) is fixedly connected to the surface of one side of the storage tank (1); a driving motor (6) is fixedly mounted on the inner wall of the protective shell (5); and an output shaft of the driving motor (6) is rotatably connected to the inner wall of the storage tank (1); a limiting seat (7) is fixedly connected to the inner wall of the storage tank (1); and the limiting seat (7) is located above the heater (3) and the heating tube (4); an agitator (8) is rotatably connected to the inner wall of the circular hole of the limiting seat (7); and a stirring rod portion of the agitator (8) is located in the middle area between the heater (3) and the heating tube (4).

3. The heating device for heating and desalination system of resin tower regeneration wastewater according to claim 2 is characterized in that: The top of the agitator (8) is meshedly connected to the side of the output shaft of the drive motor (6) close to the limit seat (7) through a bevel gear.

4. The heating device for heating and desalination system of resin tower regeneration wastewater according to claim 1 is characterized in that: The two side surfaces of the heater (3) are fixedly connected to fixed seats (9), the upper surface of the base plate (2) is symmetrically fixedly connected to electric push rods (10), and the movable end of the electric push rod (10) is fixedly connected to the lower surface of the fixed seat (9).

5. The heating device for heating and desalination system of resin tower regeneration wastewater according to claim 1 is characterized in that: The upper surface of the heater (3) is symmetrically fixedly connected to fixing rods (11), and the fixing rods (11) are provided with two sides of the electric heating tube of the heater (3). The tops of the two fixing rods (11) are fixedly connected to sealing plates (12), and the diameter of the sealing plates (12) is the same as the diameter of the circular hole at the bottom of the storage tank (1).

6. The heating device for heating and desalination system of resin tower regeneration wastewater according to claim 1 is characterized in that: The surface of the storage tank (1) is fixedly connected with three support rods (13) at equal intervals, and the bottoms of the support rods (13) are fixedly connected to the upper surface of the bottom plate (2).

7. The heating device for heating and desalination system of resin tower regeneration wastewater according to claim 1, characterized in that: The heating tube (4) adopts a threaded design.

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