Floating roof type desalting water tank

Abstract

The utility model discloses a floating roof type demineralized water tank, which relates to the technical field of demineralized water tanks and comprises a water tank body, a fixing mechanism and a lifting mechanism, the lifting mechanism driven by a motor is arranged on the upper surface of the water tank body, a manhole is arranged on the upper surface of the water tank body, a ladder stand is arranged on one side of the outer wall of the water tank, and a water inlet pipe is arranged on one side of the bottom of the outer wall of the water tank. A water inlet pipe is arranged on one side of the bottom of the outer wall of the water tank, a water outlet pipe is arranged on the other side of the bottom of the outer wall of the water tank, a fixing mechanism is arranged in the water tank body, a single-layer film type flexible floating roof is arranged on the fixing mechanism, and a supporting column is arranged at the bottom of the water tank body. The electrical conductivity of the desalted water of the desalted water tank is reduced to 0.4 mu s / cm from 0.6 mu s / cm, the indexes such as hardness, silicon and sodium are basically consistent with the quality of inlet water, and the electrical conductivity is basically unchanged by continuously detecting the water quality change of the desalted water tank for 4 days, so that the improvement of the quality of the desalted water ensures the long-term safe, stable and economical operation of a unit.

Description

Technical Field

[0001] The utility model relates to the technical field of demineralized water tanks, in particular to a floating roof type demineralized water tank. Background Technique

[0002] The floating roof material is a long-chain organic polymer synthetic material with stable material properties, suitable for use as a liquid surface covering material for liquid storage equipment. It can maximally isolate the demineralized water stored in the demineralized water tank from contact with the outside air, avoiding the pollution of the demineralized water by CO 2 in the air and other dust, ensuring that the conductivity of the demineralized water maximally maintains the performance indicators of the demineralized water at the outlet of the demineralized water tank consistent with those of the demineralized water at the inlet, achieving the purpose of safe production.

[0003] The water inlet mode of the demineralized water tank in the first phase of our factory is top water inlet. When the water is inlet, the demineralized water is in full contact with carbon dioxide and dust in the air in the tank, and there is no sealing facility at the gas-liquid two-phase interface. The water quality of the demineralized water tank has been maintained above 0.6 μs / cm all year round. Now, such problems are solved by adding floating roofs to the No. 1 and No. 2 demineralized water tanks and optimizing the water inlet mode. Content of the Utility Model

[0004] A floating roof type demineralized water tank proposed by the utility model solves the existing problems.

[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme: a floating roof type demineralized water tank, including a water tank body, a fixing mechanism and a lifting mechanism. An electrically driven lifting mechanism is provided on the upper surface of the water tank body. A manhole is provided on the upper surface of the water tank body. A ladder is provided on one side of the outer wall of the water tank. A water inlet pipe is provided on one side at the bottom of the outer wall of the water tank. A water outlet pipe is provided on the other side at the bottom of the outer wall of the water tank. A fixing mechanism is arranged inside the water tank body. A single-layer membrane type flexible floating roof is arranged on the fixing mechanism. Support columns are arranged at the bottom of the water tank body.

[0006] Preferably, the fixing mechanism includes sliding rods, floating disks, floating cylinders, brackets, threaded rods, fixing plates and sealing rings. The sliding rods are symmetrically arranged inside the water tank body. The floating disks are arranged on the sliding rods. Grooves are arranged on the surfaces of the floating disks. The flexible floating roof is arranged in the grooves. Brackets are arranged at the four corners of the surfaces of the floating disks. Threaded rods are arranged on the brackets. The other ends of the threaded rods are provided with fixing plates. A number of floating cylinders are arranged at the bottom of the floating disks. A sealing ring is arranged outside the floating disks. The sealing ring is made of rubber.

[0007] Preferably, the lifting mechanism includes a support plate, a transmission roller, a forward and reverse motor, a connecting rope, a connecting platform and a guardrail. A forward and reverse motor is provided on the upper surface of the water tank body. Support plates are symmetrically provided on the upper surface of the water tank body. A transmission roller is provided on the support plates. One end of the transmission roller passes through the support plate and is connected to the forward and reverse motor. A connecting rope is wound around the transmission roller. One end of the connecting rope passes through the water tank body and is connected to the center of the top of the connecting platform. The connecting platform and the guardrail are connected by a hinge.

[0008] Preferably, the other end of the water inlet pipe is connected to an elbow. The elbow is a 90-degree elbow and the orientation of the elbow is downward.

[0009] Preferably, a telescopic rod is provided at the bottom of the floating disc, and the other end of the telescopic rod is connected to a connecting plate.

[0010] Preferably, the water inlet pipe and the water outlet pipe are at the same height, and a flow valve is provided on the water outlet pipe.

[0011] The beneficial effects of the present utility model are as follows: The other end of the water inlet pipe is connected to an elbow. The elbow is a 90-degree elbow and the orientation of the elbow is downward, so that when water enters, the demineralized water enters below the floating roof, and the floating roof floats upward to prevent the flexible floating roof from being washed and rolled when the water volume is too large during the first water inlet. The water inlet pipe and the water outlet pipe are at the same height to avoid the phenomenon of "steam-water mixing". The demineralized water tank is reformed and optimized by adding a floating roof and the water inlet method. The conductivity of the demineralized water in the demineralized water tank is reduced from 0.6 μs / cm to 0.4 μs / cm, and the indexes such as hardness, silicon, and sodium are basically the same as the water quality of the inlet water. Through the detection of the water quality change of the demineralized water tank for 4 consecutive days, the conductivity basically does not change. The improvement of the demineralized water quality reduces the scaling and salt accumulation of the steam turbine, ensuring the long-term safe, stable and economical operation of the unit. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the present utility model.

[0013] Figure 2 is a schematic cross-sectional structural diagram of the present utility model.

[0014] Figure 3 is a schematic cross-sectional structural diagram of the present utility model from another angle.

[0015] Figure 4 is Figure 3 an enlarged structural diagram of part A in

[0016] Reference numerals in the figure: 1, water tank body; 2, connecting plate; 3, flow valve; 4, manhole; 5, ladder; 6, water inlet pipe; 7, water outlet pipe; 8, flexible floating roof; 9, support column; 10, sliding rod; 11, floating disc; 12, floating cylinder; 13, bracket; 14, threaded rod; 15, fixing plate; 16, sealing ring; 17, support plate; 18, driving roller; 19, forward and reverse motor; 20, connecting rope; 21, connecting platform; 22, guardrail; 23, elbow; 24, telescopic rod. Detailed implementation manner

[0017] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments.

[0018] Refer to Figures 1-4 As shown, a floating roof type demineralized water tank includes a water tank body 1, a fixing mechanism and a lifting mechanism. A motor-driven lifting mechanism is provided on the upper surface of the water tank body 1. A manhole 4 is provided on the upper surface of the water tank body 1. A ladder 5 is provided on one side of the outer wall of the water tank. A water inlet pipe 6 is provided on one side of the bottom of the outer wall of the water tank. A water outlet pipe 7 is provided on the other side of the bottom of the outer wall of the water tank. A fixing mechanism is provided inside the water tank body 1. A single-layer membrane type flexible floating roof 8 is provided on the fixing mechanism. Support columns 9 are provided at the bottom of the water tank body 1.

[0019] The fixing mechanism includes a sliding rod 10, a floating disc 11, a floating cylinder 12, a bracket 13, a threaded rod 14, a fixing plate 15 and a sealing ring 16. Sliding rods 10 are symmetrically arranged inside the water tank body 1. A floating disc 11 is provided on the sliding rod 10. Grooves are provided on the surface of the floating disc 11. The flexible floating roof 8 is provided in the grooves. Brackets 13 are provided at the four corners of the surface of the floating disc 11. Threaded rods 14 are provided on the brackets 13. The other ends of the threaded rods 14 are provided with fixing plates 15. A number of floating cylinders 12 are provided at the bottom of the floating disc 11. Under the action of buoyancy, the floating disc 11 floats up. A sealing ring 16 is provided on the outside of the floating disc 11. The sealing ring 16 is made of rubber and plays a sealing role. The flexible floating roof 8 is laid on the floating disc 11. The threaded rod 14 is rotated so that the fixing plate 15 fixes the flexible floating roof 8, making it not easy to be overturned and ensuring that the flexible floating roof 8 functions well.

[0020] The lifting mechanism includes a support plate 17, a driving roller 18, a forward and reverse motor 19, a connecting rope 20, a connecting platform 21 and a guardrail 22. On the upper surface of the water tank body 1, there is a forward and reverse motor 19. On the upper surface of the water tank body 1, support plates 17 are symmetrically arranged. On the support plates 17, there are driving rollers 18. One end of the driving roller 18 passes through the support plate 17 and is connected to the forward and reverse motor 19. A connecting rope 20 is wound around the driving roller 18. One end of the connecting rope 20 passes through the water tank body 1 and is connected to the center position at the top of the connecting platform 21. The connecting platform 21 and the guardrail 22 are connected by hinges. The operator enters from the manhole 4 and enters the connecting platform 21 from the upper surface of the connecting platform 21. When the forward and reverse motor 19 works, it drives the connecting platform 21 to move, eliminating the need for manual climbing and making it more convenient to use.

[0021] The other end of the water inlet pipe 6 is connected to an elbow 23. The elbow 23 is a 90-degree elbow 23 and its orientation is downward so that when water enters, the demineralized water can enter below the floating roof. The floating roof floats upward to prevent the flexible floating roof 8 from being washed and rolled when the water volume is too large during the first water inlet. A telescopic rod 24 is provided at the bottom of the floating tray 11. The other end of the telescopic rod 24 is connected to the connecting plate 2, facilitating the later maintenance below the floating tray 11 and playing a supporting role. The water inlet pipe 6 and the water outlet pipe 7 are at the same height to avoid the phenomenon of "steam-water mixing", and it is also a necessary condition for adding a floating roof. There is a flow valve 3 on the water outlet pipe 7 to facilitate the control of the switch.

[0022] Working principle: When the device of the present invention is in use, the flexible floating roof 8 is laid on the floating tray 11. The threaded rod 14 is rotated so that the fixing plate 15 fixes the flexible floating roof 8, making it not easy to be overturned and ensuring that the flexible floating roof 8 functions well. When maintenance is required, the operator enters from the manhole 4 and enters the connecting platform 21 from the upper surface of the connecting platform 21. When the forward and reverse motor 19 works, it drives the connecting platform 21 to move, eliminating the need for manual climbing and saving time and effort.

[0023] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A floating roof desalted water tank, comprising a tank body (1), a fixing mechanism and a lifting mechanism, characterized in that: The upper surface of the water tank body (1) is provided with a lifting mechanism driven by a motor, the upper surface of the water tank body (1) is provided with a manhole (4), one side of the outer wall of the water tank is provided with a ladder (5), one side of the bottom of the outer wall of the water tank is provided with a water inlet pipe (6), and the other side of the bottom of the outer wall of the water tank is provided with a water outlet pipe (7), a fixing mechanism is provided inside the water tank body (1), a single-layer membrane type flexible floating roof (8) is provided on the fixing mechanism, and a support column (9) is provided at the bottom of the water tank body (1).

2. A floating roof desalted water tank according to claim 1, characterized in that: The fixing mechanism comprises a sliding rod (10), a floating plate (11), a buoy (12), a bracket (13), a threaded rod (14), a fixing plate (15) and a sealing ring (16). The sliding rod (10) is symmetrically arranged inside the water tank body (1). The floating plate (11) is arranged on the sliding rod (10). The surface of the floating plate (11) is provided with a groove. A flexible floating top (8) is arranged in the groove. Brackets (13) are arranged at four corners of the surface of the floating plate (11). The bracket (13) is provided with a threaded rod (14). The other end of the threaded rod (14) is provided with a fixing plate (15). A plurality of buoys (12) are arranged at the bottom of the floating plate (11). A sealing ring (16) is arranged on the outside of the floating plate (11). The sealing ring (16) is made of rubber.

3. A floating roof desalted water tank according to claim 1, characterized in that: The lifting mechanism comprises a support plate (17), a transmission roller (18), a forward and reverse motor (19), a connecting rope (20), a connecting platform (21) and a guardrail (22); the upper surface of the water tank body (1) is provided with a forward and reverse motor (19); the upper surface of the water tank body (1) is symmetrically provided with a support plate (17); the support plate (17) is provided with a transmission roller (18); one end of the transmission roller (18) passes through the support plate (17) and is connected to the forward and reverse motor (19); a connecting rope (20) is wound around the transmission roller (18); one end of the connecting rope (20) passes through the water tank body (1) and is connected to the top center position of the connecting platform (21); the connecting platform (21) and the guardrail (22) are connected via a hinge.

4. A floating roof desalted water tank according to claim 1, characterized in that: The other end of the water inlet pipe (6) is connected to an elbow (23), and the elbow (23) is a 90-degree elbow (23), and the elbow (23) faces downward.

5. A floating roof desalted water tank according to claim 2, characterized in that: A telescopic rod (24) is provided at the bottom of the floating plate (11), and the other end of the telescopic rod (24) is connected to the connecting plate (2).

6. A floating roof desalted water tank according to claim 1, characterized in that: The water inlet pipe (6) and the water outlet pipe (7) are at the same height, and a flow valve (3) is provided on the water outlet pipe (7).

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