Emergency spray cooling device for lubricating oil cooler of offshore platform turbine generator

Abstract

The invention discloses an offshore platform turbine generator lubricating oil cooler emergency spraying cooling device which comprises a rack, a turbine generator lubricating oil cooler is installed in the rack, a surrounding water conveying pipe is arranged on the periphery of the outer side of the rack, and a plurality of water spraying components are installed on the water conveying pipe. An air inducing component is further installed on the outer side of the machine frame and located below the water spraying component. The air inducing part comprises a shell, openings are formed in the side, close to the rack, of the shell and the rack, and filter screens are arranged in the openings; the side, away from the rack, of the shell is connected with a discharge pipe with a downward opening; and an induced draft fan is arranged in the shell. When the temperature of the lubricating oil cooler of the turbine generator exceeds a preset temperature value, the water supply system is started for spraying and cooling, the time for repairing the lubricating oil cooler of the turbine generator is prolonged, meanwhile, the induced draft fan is started, generated heat and steam are discharged through the induced draft fan, the exhaust port faces downwards, and the heat can be discharged downwards; heat is not easy to transfer to the water pipe and the water spraying component.

Description

Technical Field

[0001] The invention relates to the technical field of spraying and cooling the lubricating oil cooler of a generator, and in particular to an emergency spraying and cooling device for a lubricating oil cooler of a turbine generator on an offshore platform. Background Art

[0002] The offshore platform turbine generator set is equipped with a finned air-cooled oil cooler, which is located at the top of the main switch room. Due to factors such as equipment aging, cooling fan motor failure, fan belt fatigue fracture, and fins attached by debris, the heat exchange effect is not ideal, which frequently causes the oil system to overheat and then causes the unit to shut down, affecting the power supply and safe and stable production of the offshore platform.

[0003] A Chinese invention patent with publication number CN203731888U discloses a spray water distribution device for cooling high-temperature flue gas on an offshore platform, including a high-temperature flue gas pipe, a main water inlet pipe, a water inlet distribution pipe, a spray nozzle, a lower spray pipeline, and an upper spray pipeline. A circle of upper spray pipelines and a circle of lower spray pipelines are arranged on the outside of the high-temperature flue gas pipe. The lower spray pipeline is arranged at the lower part of the upper spray pipeline, and the outer diameter of the lower spray pipeline is smaller than the inner diameter of the upper spray pipeline; spray nozzles are respectively arranged below the outer walls of the lower spray pipeline and the upper spray pipeline as water outlet ends, and the water inlet ends of the lower spray pipeline and the upper spray pipeline are connected to the main water inlet pipe through the water inlet distribution pipe.

[0004] In the above-mentioned prior art, since the fin-type air-cooled lubricating oil cooler equipped with the turbine generator unit is installed in the frame, the spray water distribution device is installed above the fin-type air-cooled lubricating oil cooler to effectively spray and cool the fin-type air-cooled lubricating oil cooler. However, in the process of spray cooling, the hot steam generated rushes upward, which causes the steam to heat the spray pipe and the spray head, and then the water still in the spray pipe will be heated by the steam, which greatly reduces the cooling effect of the cooling water. Therefore, it is necessary to propose an emergency spray cooling device for the offshore platform turbine generator lubricating oil cooler to solve this problem. Summary of the invention

[0005] In order to solve the above technical problems, the present invention provides an emergency spray cooling device for an offshore platform turbine generator lubricating oil cooler.

[0006] The present invention is achieved by adopting the following technical solutions.

[0007] An emergency spray cooling device for an offshore platform turbine generator oil cooler comprises a frame, in which a turbine generator oil cooler is installed, the outer side of the frame is provided with surrounding water pipes, on which a plurality of water spraying components are installed; an induced draft component is also installed on the outer side of the frame, and the induced draft component is located below the water spraying component; the induced draft component comprises a shell, and openings are provided on a side of the shell close to the frame and on the frame, and a filter is provided in the opening; a discharge pipe with a downward opening is connected to a side of the shell away from the frame; an induced draft fan is installed in the shell.

[0008] Furthermore, one end of the water pipe is a water inlet, and the water inlet is connected to the water supply platform.

[0009] Furthermore, a flow regulating valve is installed on the water delivery pipe.

[0010] Furthermore, the water spray component includes a tube body, one end of which is connected to a second connecting tube, which is connected to a water pipe; the other end of the tube body is connected to a first connecting tube, and a free end of the first connecting tube is connected to a spray head.

[0011] Furthermore, the first connecting pipe is a flexible pipe made of flexible material.

[0012] Furthermore, the water spray component is connected to the water pipe through a riser component.

[0013] Furthermore, the riser component includes a riser, one end of which is connected to the water pipe, and the other end of which is connected to the second connecting pipe by sleeve insertion.

[0014] Furthermore, the riser component also includes an internal threaded sleeve, a sleeve is connected to the bottom of the internal threaded sleeve, and the internal threaded sleeve and the sleeve sleeve are arranged outside the riser; the internal threaded sleeve is threadedly connected to the second connecting pipe; an annular limiting rubber ring is fixed on the riser located above the internal threaded sleeve.

[0015] Furthermore, the induced draft fan includes a motor fixed in a housing, and an output shaft of the motor is connected to an induced draft wheel.

[0016] Furthermore, a waterproof cover is provided on the outer side of the motor.

[0017] This application has the following beneficial effects.

[0018] (1) The emergency spray cooling device for the turbine generator oil cooler of the offshore platform of the present invention is provided with an induced draft component. When the temperature of the turbine generator oil cooler exceeds a preset temperature value, the water supply system is started, and the cooling water of the water supply platform is pumped into the water pipe through a pump, and the fins of the turbine generator oil cooler are sprayed and cooled through the water spray component. When the turbine generator oil cooler fails, the fins of the turbine generator oil cooler are cooled, and the time for repairing the turbine generator oil cooler is extended. At the same time, the induced draft fan is started, and the generated heat and steam are introduced into the interior of the shell through the induced draft fan, and then discharged through the discharge pipe. The discharge port of the discharge pipe is downward, so that the heat can be discharged downward, and the heat is not easily transferred to the water pipe and the water spray component. At the same time, the hot steam is not easy to cause safety hazards to the staff during discharge.

[0019] (2) The emergency spray cooling device for the offshore platform turbine generator oil cooler of the present invention is provided with a first connecting pipe, which is a flexible pipe made of a flexible material and can be adjusted in orientation and angle by folding and swinging by external force, so that the nozzle can be placed in the best spraying position, so that the water droplets generated during spraying can effectively cover the turbine generator oil cooler. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the present invention;

[0021] Figure 2 It is a structural schematic diagram of the water spray component of the present invention;

[0022] Figure 3 It is a structural schematic diagram of the riser component of the present invention;

[0023] Figure 4 It is a cross-sectional view of the air inducing component of the present invention.

[0024] Among them, 1. water pipe, 101. water inlet, 102. flow regulating valve, 2. water spray component, 201. pipe body, 202. first connecting pipe, 203. nozzle, 204. second connecting pipe, 205. external thread, 3. draft component, 301. shell, 302. filter, 303. discharge pipe, 304. motor, 305. draft wheel, 306. cover, 4. frame, 5. turbine generator oil cooler, 6. riser component, 601. riser, 602. internal thread sleeve, 603. sleeve, 604. internal thread, 605. limiting rubber ring. DETAILED DESCRIPTION

[0025] The present patent application is further described below in conjunction with embodiments.

[0026] The turbine generator oil cooler 5 for offshore platforms is installed inside the frame 4. The function of the turbine generator oil cooler 5 is to cool the lubricating oil and keep the oil temperature within the normal working range so that the turbine generator can be used normally. When the oil cooling system fails, the oil head temperature rises rapidly, generally reaching the shut-off value of 73.9°C in 5 to 8 minutes, and the ambient temperature is about 5°C (the oil tank temperature is about 65°C). Therefore, how to improve the fault elimination response time so that the on-site operator can find the equipment failure in time, determine the root cause of the failure, and eliminate the failure is positively correlated to avoid the shutdown of the unit to a certain extent. At the same time, under the high temperature environment in summer, affected by factors such as direct sunlight, the heat dissipation effect of the turbine generator oil cooler 5 is poor, the temperature of the oil tank is as high as 90°C, and the oil head often has a high temperature alarm. Especially with the increase of oil field reserve and production projects, the power load is increasing day by day, and the power station is about to be close to full load. If the unit is overhauled or the unit fails, there will be no spare unit for a long time, which seriously affects the stability of the oil field power station. Therefore, the present application installs a circle of spray ring nets on the top of the fins of the turbine generator lubricating oil cooler, and installs a spray head on the ring net. When the turbine generator lubricating oil cooler 5 fails and stops, the spray ring net starts spraying to cool the cooler fins and ensure the stability of the lubricating oil temperature, so that there is sufficient time to repair the turbine generator lubricating oil cooler 5. However, it is found in the spray cooling process that heat rushes up during cooling, causing the spray ring net and the spray head to heat up, resulting in a significant reduction in the cooling effect. Therefore, the present application further improves and proposes a spray cooling system that can prevent heat recoil, and the specific implementation method is shown below.

[0027] Reference Figure 1 An emergency spray cooling device for an offshore platform turbine generator lubricating oil cooler includes a water pipe 1 installed on a frame 4, one end of the water pipe 1 is a water inlet 101, a flow regulating valve 102 is installed on the water pipe 1, and the flow regulating valve 102 is used for regulating and controlling the flow of cooling water. The water supply comes from a platform fresh water utility station with a pressure of about 0.3MPa.

[0028] The water pipe 1 is fixedly installed around the top of the frame 4, and a water spray component 2 is installed on the upper end of the water pipe 1. The water spray component 2 is used to spray cooling water to the fins of the turbine generator lubricating oil cooler 5, so that when the turbine generator lubricating oil cooler 5 fails, the fins of the turbine generator lubricating oil cooler 5 can be cooled, thereby extending the time for repairing the turbine generator lubricating oil cooler 5.

[0029] An air induced component 3 is installed on the outer side of the frame 4. The air induced component 3 is located below the water spray component 2. The air induced component 3 includes a shell 301, a filter 302, a discharge pipe 303 and an induced draft fan. The shell 301 is fixed to the outer side of the frame 4. An opening is provided on the side where the shell 301 is fixed to the frame 4 and on the frame 4. Through the opening, the interior of the shell 301 is connected with the interior of the frame 4. A filter 302 is fixed in the opening to prevent debris from entering the interior of the shell 301. An "L"-shaped discharge pipe 303 is fixed on the outer side of the shell 301. An induced draft fan is installed in the shell 301. The induced draft fan is connected to an external power supply. After the power supply is started, the induced draft fan is started to guide the steam and heat in the frame 4 into the shell 301 through the filter 302, and then discharged through the discharge pipe 303. The discharge port of the discharge pipe 303 is set downward.

[0030] When the temperature of the turbine generator oil cooler 5 exceeds the preset temperature value, the water supply system starts, and the cooling water of the water supply platform is pumped into the water pipe 1, and the fins of the turbine generator oil cooler 5 are sprayed and cooled by the water spray component 2. At the same time, the induced draft fan is started, and the generated heat and steam are introduced into the interior of the shell 301 through the induced draft fan, and then discharged through the discharge pipe 303. The discharge port of the discharge pipe 303 is downward, so that the heat can be discharged downward, and the heat is not easily transferred to the water pipe 1 and the water spray component 2. At the same time, the hot steam is not easy to cause safety hazards to the staff during discharge.

[0031] In this embodiment, Figure 2 The structural diagram of the water spray component 2 is shown, and the water spray component 2 includes a tube body 201, a first connecting pipe 202, a nozzle 203, a second connecting pipe 204 and an external thread 205. One end of the tube body 201 is vertically connected to the second connecting pipe 204, and the outer side of the second connecting pipe 204 is provided with an external thread 205. The other end of the tube body 201 is integrally connected to the first connecting pipe 202, and the free end of the first connecting pipe 202 is connected to the nozzle 203.

[0032] In order to enable the nozzle 203 to be adjusted in azimuth and angle, the first connecting pipe 202 is a flexible pipe made of flexible material, which can be adjusted in azimuth and angle through folding and swinging by external force, so that the nozzle 203 can be placed in the best spraying position, so that the water droplets generated during spraying can effectively cover the turbine generator oil cooler 5.

[0033] In this embodiment, Figure 3The riser component 6 connected to the water pipe 1 is shown. The riser component 6 is used to connect the water pipe 1 and the water spray component 2. The riser component 6 includes a riser 601, an internal thread sleeve 602, a sleeve 603, an internal thread 604 and a limiting rubber ring 605. One end of the riser 601 is fixedly connected to the water pipe 1. The outer side of the riser 601 is sleeved with an internal thread sleeve 602, and a sleeve 603 is fixed below the internal thread sleeve 602. The inner diameter of the sleeve 603 is the same as the outer diameter of the riser 601. The sleeve 603 is sleeved on the outer side of the riser 601. An annular limiting rubber ring 605 is fixed on the outer side of the riser 601 above the internal thread sleeve 602. The inner side of the internal thread sleeve 602 is provided with an internal thread 604. The inner diameter of the internal thread sleeve 602 is the same as the outer diameter of the second connecting pipe 204. When installing the water spray component 2, the second connecting pipe 204 is sleeved on the outer side above the vertical pipe 601, and then the internal threaded sleeve 602 is sleeved upward on the outer side of the second connecting pipe 204, and the internal threaded sleeve 602 is rotated to make the internal threaded sleeve 602 and the second connecting pipe 204 threadedly connected. At this time, the bottom outer edge end face of the second connecting pipe 204 abuts against the limiting rubber ring 605, so that the water spray component 2 and the vertical pipe component 6 are fixedly connected. The limiting rubber ring 605 limits the sleeve 603 to prevent the sleeve 603 from moving upward and out of the vertical pipe 601. At the same time, the limiting rubber ring 605 seals the connection between the second connecting pipe 204 and the vertical pipe 601.

[0034] In this embodiment, Figure 4 The structure diagram of the interior of the induced draft component 3 is shown. The induced draft fan includes a motor 304, an induced draft wheel 305 and a cover 306. The motor 304 is fixed in the shell 301. The output shaft of the motor 304 is connected to the induced draft wheel 305. The motor 304 drives the induced draft wheel 305 to rotate through the output shaft. The cover 306 is fixed on the outside of the motor 304. The cover 306 is used for waterproofing to prevent water vapor from entering the shell 301 and wetting and corroding the motor 304.

[0035] The working principle of the present invention is as follows:

[0036] During use, when the fin temperature of the turbine generator oil cooler 5 is abnormal or the speed of the cooling fan is abnormal, the water supply system is started, and water is connected to the water inlet of the water pipe 1 through the water supply pipe through the pump body, so that the cooling water can enter the water spray component 2, and is sprayed to the turbine generator oil cooler 5 through the nozzle 203 for cooling. At the same time, the induced draft fan is started, and the generated heat and steam are introduced into the shell 301 through the induced draft fan, and then discharged through the discharge pipe 303. The discharge port of the discharge pipe 303 is downward, so that the heat can be discharged downward, and the heat is not easily transferred to the water pipe 1 and the water spray component 2. At the same time, the hot steam is not easy to cause safety hazards to the staff during discharge.

[0037] The embodiments of this specific implementation method are all preferred embodiments of the present invention, and are not intended to limit the protection scope of the present invention. Therefore, any equivalent changes made based on the structure, shape, and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An emergency spray cooling device for a turbine generator oil cooler on an offshore platform, comprising a frame (4), a turbine generator oil cooler (5) being installed in the frame (4), characterized in that: The outer side of the frame (4) is provided with a surrounding water pipe (1), and a plurality of water spray components (2) are installed on the water pipe (1); an air induction component (3) is also installed on the outer side of the frame (4), and the air induction component (3) is located below the water spray component (2); the air induction component (3) comprises a shell (301), and the shell (301) is provided with an opening on a side close to the frame (4) and on the frame (4), and a filter screen (302) is provided in the opening; the shell (301) is connected to a discharge pipe (303) with an opening facing downward on a side away from the frame (4); and an induced draft fan is installed in the shell (301).

2. The emergency spray cooling device for the oil cooler of an offshore platform turbine generator according to claim 1 is characterized in that: One end of the water delivery pipe (1) is a water inlet (101), and the water inlet (101) is connected to a water supply platform.

3. The emergency spray cooling device for the oil cooler of an offshore platform turbine generator according to claim 1, characterized in that: A flow regulating valve (102) is installed on the water delivery pipe (1).

4. The emergency spray cooling device for the oil cooler of an offshore platform turbine generator according to claim 1 is characterized in that: The water spray component (2) comprises a tube body (201), one end of the tube body (201) is connected to a second connecting tube (204), and the second connecting tube (204) is connected to a water delivery pipe (1); the other end of the tube body (201) is connected to a first connecting tube (202), and the free end of the first connecting tube (202) is connected to a spray head (203).

5. The emergency spray cooling device for the oil cooler of an offshore platform turbine generator according to claim 4, characterized in that: The first connecting pipe (202) is a flexible pipe made of flexible material.

6. The emergency spray cooling device for the oil cooler of an offshore platform turbine generator according to claim 1, characterized in that: The water spray component (2) is connected to the water delivery pipe (1) via a riser component (6).

7. The emergency spray cooling device for the oil cooler of an offshore platform turbine generator according to claim 6, characterized in that: The riser component (6) comprises a riser (601), one end of which is connected to the water delivery pipe (1), and the other end of which is sleeve-connected to the second connecting pipe (204).

8. The emergency spray cooling device for the oil cooler of an offshore platform turbine generator according to claim 7, characterized in that: The stand pipe component (6) further comprises an internally threaded sleeve (602), a sleeve (603) being connected below the internally threaded sleeve (602), and the internally threaded sleeve (602) and the sleeve (603) being sleeved outside the stand pipe (601); the internally threaded sleeve (602) being threadedly connected to the second connecting pipe (204); and an annular limiting rubber ring (605) being fixed on the stand pipe (601) located above the internally threaded sleeve (602).

9. The emergency spray cooling device for the oil cooler of an offshore platform turbine generator according to claim 1, characterized in that: The induced draft fan comprises a motor (304) fixed in a housing (301), and an output shaft of the motor (304) is connected to an induced draft wheel (305).

10. The emergency spray cooling device for the oil cooler of an offshore platform turbine generator according to claim 9, characterized in that: A waterproof cover (306) is provided on the outer side of the motor (304).

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