Water removing and filtering device suitable for steam turbine lubricating oil system

Abstract

A water removing and filtering device suitable for a steam turbine lubricating oil system comprises a lubricating oil inlet flange, the lubricating oil inlet flange is connected with an evaporation barrel, the evaporation barrel is provided with a steam inlet and a steam outlet, the upper portion of the evaporation barrel is connected with a water vapor collecting box, and the upper portion of the water vapor collecting box is provided with a water vapor suction pipe. The water vapor suction pipe is connected with the vacuum pump, the vacuum pump is connected with the motor, the motor is electrically connected with the control panel, the control panel comprises a display screen and editing keys, and a data acquisition module, a data comparison module, a data processing module and a control circuit module are arranged in the control panel. And the data acquisition module, the data comparison module and the data processing module are electrically connected with the control circuit module. According to the scheme, the structure is simple, moisture and mechanical impurities in lubricating oil during operation of the steam turbine can be removed, the service life of the steam turbine is greatly prolonged, and therefore long-term stable operation of a production device is guaranteed.

Description

Technical Field

[0001] This device relates to the technical field of lubricating oil water removal and filtration, and more specifically, to a water removal and filtration device applicable to the lubricating oil system of a steam turbine. Background Technique

[0002] A steam turbine is a rotary steam power device that relies on high-temperature and high-pressure steam passing through a fixed nozzle to become an accelerated air flow and then jet onto the blades, causing the rotor equipped with the blade row to rotate and perform external work at the same time.

[0003] During the operation of the steam turbine, the steam in the body is sealed by a tooth seal. When the shaft seal leaks too much, the leaked steam easily enters the bearing box and enters the lubricating oil circulation system. After long-term use, a large amount of water will emulsify the lubricating oil, which will in turn lead to a reduction in the service life of the bearing. At the same time, during operation, some mechanical impurities will fall into the lubricating oil system. When the mechanical impurities are too large and enter the bearing box, they will cause wear of the bearing bush and the shaft, greatly shortening the service life of the steam turbine. Removing water from the lubricating oil is an urgent problem to be solved. Content of the Utility Model

[0004] Aiming at the problems existing in the prior art, the purpose of the present utility model is to provide a water removal and filtration device applicable to the lubricating oil system of a steam turbine.

[0005] To solve the above problems, the present utility model adopts the following technical solutions.

[0006] A water removal and filtration device applicable to the lubricating oil system of a steam turbine includes a lubricating oil inlet flange, the lubricating oil inlet flange is connected to an evaporation cylinder body, the evaporation cylinder body is provided with a steam inlet and a steam outlet, the upper part of the evaporation cylinder body is connected to a water vapor collection box, the upper part of the water vapor collection box is provided with a water vapor suction pipe, the water vapor suction pipe is connected to a vacuum pump, the vacuum pump is connected to a motor, the motor is electrically connected to a control panel, the oil outlet pipe is connected to a cooler, and the cooler is provided with a lubricating oil outlet pipe, a cooling water inlet pipe and a cooling water outlet pipe.

[0007] Further, the water vapor collection box is provided with a pressure sensor.

[0008] Further, the lubricating oil inlet flange is provided with a magnetic gasket, and a plurality of strong magnetic strips are arranged at the middle position of the magnetic gasket.

[0009] Further, the control panel includes a display screen and editing buttons, and the control panel internally is provided with a data acquisition module, a data comparison module, a data processing module, and a control circuit module. The data acquisition module, the data comparison module and the data processing module are electrically connected to the control circuit module.

[0010] Further, a one-way valve assembly is provided between the water vapor collection box and the evaporation cylinder. Beneficial effects:

[0011] In this solution, steam is introduced into the evaporation cylinder, causing the water vapor mixed in the lubricating oil in the evaporation cylinder to vaporize and enter the water vapor collection box. When the water vapor in the water vapor collection box increases and the pressure becomes larger, the signal is transmitted to the control panel through the pressure sensor, so that the vacuum pump is started, and the water vapor in the water vapor collection box can be timely pumped out and discharged through the water vapor discharge pipe.

[0012] When the lubricating oil passes through the lubricating oil inlet flange, the lubricating oil inlet flange is provided with a magnetic gasket, and a plurality of strong magnetic strips are arranged at the middle position of the magnetic gasket. The strong magnetic strips can timely adsorb the mechanical impurities in the lubricating oil, thus preventing the mechanical impurities from entering the bearing part and causing certain damage to the bearing bush and the shaft.

[0013] A one-way valve assembly is provided between the water vapor collection box and the evaporation cylinder. When the water vapor pressure in the water vapor collection box becomes larger, the one-way valve assembly can prevent the water vapor from flowing back into the evaporation cylinder, thereby improving the steam extraction efficiency of the device. Description of the Drawings

[0014] Figure 1 is the overall structural schematic diagram of the present utility model;

[0015] Figure 2 is the front view of the present utility model;

[0016] Figure 3 is the left view of the present utility model;

[0017] Figure 4 is the cross-sectional view of the evaporation cylinder of the present utility model;

[0018] Figure 5 is the enlarged view of the magnetic gasket in the figure of the present utility model;

[0019] Figure 6 is the schematic diagram of the module electrical connection inside the control panel of the present utility model;

[0020] Figure 7 is the schematic diagram of the lubricating oil circulation mode of the present utility model;

[0021] Wherein:

[0022] 1. Evaporation cylinder body; 2. Water vapor collection box; 201. Pressure sensor; 202. Check valve assembly; 203. Steam pipeline; 301. Lubricating oil inlet flange; 302. Magnetic gasket; 303. Oil outlet pipe; 304. Strong magnetic strip; 401. Steam inlet; 402. Steam outlet; 5. Control panel; 501. Display screen; 502. Editing button; 503. Data acquisition module; 504. Data comparison module; 505. Data processing module; 506. Control circuit module; 6. Motor; 7. Vacuum pump; 701. Water vapor suction pipe; 702. Water vapor discharge pipe; 8. Cooler; 801. Cooling water inlet pipe; 802. Cooling water outlet pipe; 803. Lubricating oil outlet pipe. Detailed implementation mode

[0023] 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. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0024] Please refer to Figures 1-7 , a water removal and filtration device applicable to a steam turbine lubricating oil system, including a lubricating oil inlet flange 301, the lubricating oil inlet flange 301 is connected to an evaporation cylinder body 1, the evaporation cylinder body 1 is provided with a steam inlet 401 and a steam outlet 402, the upper part of the evaporation cylinder body 1 is connected to a water vapor collection box 2, the upper part of the water vapor collection box 2 is provided with a water vapor suction pipe 701, the water vapor suction pipe 701 is connected to a vacuum pump 7, the vacuum pump 7 is connected to a motor 6, the motor 6 is electrically connected to a control panel 5, the control panel 5 includes a display screen 501 and an editing button 502, the control panel 5 is internally provided with a data acquisition module 503, a data comparison module 504, a data processing module 505, and a control circuit module 506, the data acquisition module 503, the data comparison module 504, and the data processing module 505 are electrically connected to the control circuit module 506, the oil outlet pipe 303 is connected to a cooler 8, and the cooler 8 is provided with a lubricating oil outlet pipe 803, a cooling water inlet pipe 801, and a cooling water outlet pipe 802.

[0025] Refer to Figures 1-2 , in this solution, steam is introduced into the evaporation cylinder body 1, so that the water vapor doped in the lubricating oil in the evaporation cylinder body 1 vaporizes and enters the water vapor collection box 2. When the water vapor in the water vapor collection box 2 increases and the pressure becomes larger, the signal is transmitted to the control panel 5 through the pressure sensor 201, so that the vacuum pump 7 is started, so that the water vapor in the water vapor collection box 2 can be timely pumped out and discharged through the water vapor discharge pipe 702.

[0026] Refer to Figure 3 and Figure 5 When the lubricating oil passes through the lubricating oil inlet flange 301, a magnetic gasket 302 is provided on the lubricating oil inlet flange 301. A plurality of strong magnetic strips 304 are provided at the middle position of the magnetic gasket 302. The strong magnetic strips 304 can timely adsorb mechanical impurities in the lubricating oil, thereby preventing mechanical impurities from entering the bearing part and causing certain damage to the bearing bush and the shaft.

[0027] Refer to Figure 4 A one-way valve assembly 202 is provided between the water vapor collection box 2 and the evaporation cylinder 1. When the water vapor pressure in the water vapor collection box 2 increases, the one-way valve assembly 202 can prevent the water vapor from flowing back into the evaporation cylinder 1, thereby improving the steam extraction efficiency of the device. A steam pipeline is provided inside the evaporation cylinder. Steam enters the steam pipeline 203 from the steam inlet 401 and exits from the steam outlet 402 of the steam pipeline 203. The lubricating oil is outside the steam pipeline. The steam pipeline heats the lubricating oil to evaporate the water. After the water is vaporized, the water vapor enters the water vapor collection box 2 through the one-way valve assembly 202. When the water vapor in the water vapor collection box 2 increases, the pressure sensor 201 provided in the water vapor collection box 2 transmits the pressure signal to the control panel 5.

[0028] As Figure 7 shown, in this device, the lubricating oil enters the evaporation cylinder 1 from the lubricating oil inlet flange 301. When passing through the magnetic gasket 302 in the lubricating oil inlet flange 301, the mechanical impurities contained in the lubricating oil can be adsorbed. By introducing steam into the steam inlet 401, the temperature of the lubricating oil in the evaporation cylinder 1 increases, and the water in the lubricating oil is vaporized. After the water is vaporized, the water vapor enters the water vapor collection box 2 through the one-way valve assembly 202. When the water vapor in the water vapor collection box 2 increases, the pressure sensor 201 provided in the water vapor collection box 2 transmits the pressure signal to the control panel 5. The vacuum pump 7 is started through the control panel 5, so that the water vapor in the water vapor collection box 2 can be pumped away. When the pressure decreases, the pressure sensor 201 transmits the signal to the control panel 5 to stop the vacuum pump 7. The lubricating oil in the evaporation cylinder 1 enters the cooler 8 through the oil outlet pipe 303 for further cooling. The cooled lubricating oil enters each lubrication point of the steam turbine through the lubricating oil outlet pipe 803 for lubrication. This solution has a simple structure, can remove the water and mechanical impurities in the lubricating oil during the operation of the steam turbine, extends the replacement cycle of the lubricating oil, greatly improves the service life of the steam turbine, and thus ensures the long-term stable operation of the production device.

[0029] The above are only the preferred specific embodiments of the present utility model; however, the protection scope of the present utility model is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present utility model, according to the technical solution of the present utility model and its improved concept, making equivalent substitutions or changes, should be covered by the protection scope of the present utility model.

Claims

1. A water removal and filtration device applicable to the steam turbine lubricating oil system, characterized in that: It includes a lubricating oil inlet flange (301), the lubricating oil inlet flange (301) is connected to an evaporation cylinder body (1), the evaporation cylinder body (1) is provided with a steam inlet (401) and a steam outlet (402), the upper part of the evaporation cylinder body (1) is connected to a water vapor collection box (2), the upper part of the water vapor collection box (2) is provided with a water vapor suction pipe (701), the water vapor suction pipe (701) is connected to a vacuum pump (7), the vacuum pump (7) is connected to a motor (6), the motor (6) is electrically connected to a control panel (5), an oil outlet pipe (303) is connected to a cooler (8), and the cooler (8) is provided with a lubricating oil outlet pipe, a cooling water inlet pipe (801) and a cooling water outlet pipe (802).

2. The water removal and filtration device applicable to the steam turbine lubricating oil system according to claim 1, characterized in that: The water vapor collection box (2) is provided with a pressure sensor (201).

3. The water removal and filtration device applicable to the steam turbine lubricating oil system according to claim 1, wherein: The lubricating oil inlet flange (301) is provided with a magnetic gasket (302), and a plurality of strong magnetic strips (304) are arranged at the middle position of the magnetic gasket (302).

4. The water removal and filtration device applicable to the steam turbine lubricating oil system according to claim 1, characterized in that: The control panel (5) includes a display screen (501) and an editing key (502), and a data acquisition module (503), a data comparison module (504), a data processing module (505) and a control circuit module (506) are arranged inside the control panel (5), and the data acquisition module (503), the data comparison module (504) and the data processing module (505) are electrically connected to the control circuit module (506).

5. The water removal and filtration device applicable to the steam turbine lubricating oil system according to claim 1, characterized in that: A one-way valve assembly (202) is arranged between the water vapor collection box (2) and the evaporation cylinder body (1).

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