Cooling water circulation device of steam turbine generator

Abstract

The utility model discloses a cooling water circulation device of a steam turbine generator. The cooling water circulation device comprises a steam turbine generator body and a self-cleaning filtering device. The self-cleaning filtering device is arranged, auxiliary filtering and purifying of cooling water can be achieved under the cooperation of the filtering cylinder, the filtering cylinder can be made to rotate centrifugally under the transmission of the driving wheel, the belt and the driven wheel, the filtering and purifying efficiency of the cooling water is improved, the cleaning assembly is arranged, an internal scraping plate can scrape and clean the centrifugally-rotating filtering cylinder in an auxiliary mode, and the cleaning effect is good. The phenomenon that the filtering efficiency is reduced due to blockage of external filtering holes is reduced, so that the advantages that the inner wall of a scraping plate assists in scraping and cleaning and the filtering and purifying efficiency is guaranteed are achieved, a sweeping assembly is arranged, that is, a transverse plate can synchronously move along with a filtering cylinder and is matched with a connecting column to drive a sweeping strip to rotate, and therefore, a sponge strip mounted at the bottom of the sweeping strip can be used for cleaning the filtering and purifying efficiency. And the collected impurities can be scraped and guided out, so that the advantage that the collected impurities assist in circumferential pushing, cleaning and discharging is achieved.

Description

Technical Field

[0001] The utility model relates to the field of steam turbine generators, in particular to a cooling water circulation device for steam turbine generators. Background Art

[0002] A steam turbine generator is a generator driven by a steam turbine. The superheated steam generated by the boiler enters the steam turbine and expands to do work, causing the blades to rotate and drive the generator to generate electricity. The waste steam after doing work is sent back to the boiler for recycling through the condenser, circulating water pump, condensate pump, feed water heating device, etc.

[0003] In the prior art, a water pump is installed in a circulating water tank in a steam turbine generator cooling water circulation device to pump cooling water into the steam turbine generator body to realize cooling water circulation;

[0004] The existing application number is CN202121971049.3, which is a cooling water circulation device for a steam turbine generator, comprising a steam turbine generator body, a cooling device and a circulating water tank, wherein the steam turbine generator body, the cooling device and the circulating water tank are sequentially connected and communicated with each other through a connecting pipe, a water pump and two baffles are fixedly installed in the circulating water tank, the water outlet end of the water pump is fixedly connected to the ends of the opposite connecting pipes and are communicated with each other, a connecting plate is provided through the top of the circulating water tank, a filtering mechanism is provided at the bottom of the connecting plate, a collecting mechanism is provided at the side wall of the filtering mechanism, and two sliding grooves are provided at the bottom of the connecting plate. The utility model has a reasonable structural design, which can filter the cooling water entering the circulating water tank, ensure the cleanliness of the cooling water, avoid the situation where the water pump is blocked and affects the normal operation of the cooling water circulation, and can collect impurities in a centralized manner, so as to facilitate the cleaning of impurities;

[0005] The above-mentioned existing circulation device achieves filtering and cleaning of cooling water by adding a filter screen to prevent impurities in the cooling water from affecting the circulation process or equipment. However, the filtering measures provided inside the device are less efficient in terms of the self-cleaning property of the outside of the filter screen, resulting in the filter screen being more easily clogged after being used for a period of time, thereby affecting the overall water circulation rate of the cooling water. Utility Model Content

[0006] Therefore, in order to solve the above-mentioned shortcomings, the utility model provides a steam turbine generator cooling water circulation device.

[0007] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a steam turbine generator cooling water circulation device, comprising a steam turbine generator body, first conduits are installed on both sides of the outer end of the steam turbine generator body, and the bottom of the first conduit on the right side is connected to a cooling box, and a control device is installed at the front end of the cooling box.

[0008] The cooling box is connected to the second conduit on the left side, and the water outlet end of the second conduit is connected to the water tank, a water pump is installed inside the water tank, and the left side of the water pump is connected to the first conduit on the left side, and also includes a self-cleaning filter device arranged inside the water tank, the self-cleaning filter device includes a filter cartridge arranged on the right side of the water tank, a connecting shaft installed on the upper end of the filter cartridge, a driven wheel arranged on the outside of the connecting shaft, a belt connected to the outside of the driven wheel, a driving wheel connected to the right side of the belt, a servo motor connected to the lower end of the driving wheel, a box installed on the right side of the water tank and sleeved on the outside of the servo motor, a base arranged at the lower end of the filter cartridge, a discharge port installed on the left side of the base, a cleaning component arranged inside the filter cartridge, and a cleaning component installed at the lower end of the cleaning component.

[0009] Preferably, the cleaning assembly includes a vertical pole plugged into the upper end of the base, a horizontal bar arranged on the right side of the vertical pole, a compression spring installed inside the horizontal bar, a plug-in rod plugged into the inside of the horizontal bar, and a scraper arranged on the right side of the plug-in rod.

[0010] Preferably, the cleaning component includes a sweeping strip installed on the outer side of the lower end of the cleaning component, a sponge strip embedded in the lower end of the sweeping strip, a connecting column plugged into the upper end of the sweeping strip, a horizontal plate connected to the upper end of the connecting column, a locking shaft locked to the upper end of the connecting column, and a mounting base fixed to the right side of the horizontal plate and tightly connected to the inner part of the lower end of the filter cartridge.

[0011] Preferably, a ball bearing is also provided at the bottom of the filter cartridge, and the ball bearing is embedded in the upper end of the base.

[0012] Preferably, filter holes are equidistantly provided on the outside of the filter cartridge, and balls are rollingly embedded in the four corners of the bottom of the filter cartridge.

[0013] Preferably, the discharge port is equipped with a solenoid valve, and the discharge port passes through the lower right end of the water tank.

[0014] Preferably, the horizontal bar, the compression spring and the plug-in rod are all arranged laterally and equidistantly along the right side of the vertical rod, and the left side of the plug-in rod abuts against the compression spring.

[0015] Preferably, the sweeping strip is snap-fitted to the outer side of the lower end of the vertical rod, and a sponge strip is transversely embedded in the lower end of the interior of the sweeping strip.

[0016] Beneficial effects of the utility model:

[0017] Advantage 1: The utility model is provided with a self-cleaning filter device, that is, in cooperation with the filter cartridge, auxiliary filtering and purification of cooling water can be achieved, and under the drive of the driving wheel, belt and driven wheel, the filter cartridge can be centrifugally rotated to accelerate the filtering and purification efficiency of cooling water.

[0018] Advantage 2: The utility model is provided with a cleaning component, that is, the internal scraper can assist in scraping and cleaning the centrifugally rotating filter cartridge, thereby reducing the blockage of the external filter holes and the phenomenon of reduced filtration efficiency, thereby achieving the advantage of assisting the scraper inner wall to scrape and clean, and ensuring the filtration purification efficiency.

[0019] Advantage 3: The utility model is provided with a cleaning component, that is, the horizontal plate can move synchronously with the filter cartridge and cooperate with the connecting column to drive the sweep bar to rotate. In this way, the sponge bar installed at the bottom of the sweep bar can collect impurities and scrape them out, thereby achieving the advantage of auxiliary circumferential promotion and clean discharge of the collected impurities. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the utility model;

[0021] Figure 2 This is a schematic diagram of the internal structure of the utility model;

[0022] Figure 3 This is a schematic diagram of the internal structure of the self-cleaning filter device of the utility model;

[0023] Figure 4 This is a schematic diagram of the front view structure of the cleaning component of the utility model;

[0024] Figure 5 It is a three-dimensional structural schematic diagram of the cleaning component of the utility model.

[0025] Among them: steam turbine generator body-1, first duct-2, cooling box-3, controller-4, second duct-5, water tank-6, water pump-7, self-cleaning filter device-8, filter cartridge-81, connecting shaft-82, driven wheel-83, belt-84, driving wheel-85, servo motor-86, box-87, base-88, discharge port-89, cleaning component-810, vertical pole-8101, horizontal bar-8102, compression spring-8103, plug-in rod-8104, scraper-8105, cleaning component-811, sweeping bar-8111, sponge bar-8112, connecting column-8113, horizontal plate-8114, locking shaft-8115, mounting seat-8116, ball-a. DETAILED DESCRIPTION

[0026] In order to further explain the technical solution of the present utility model, it is described in detail through specific embodiments below.

[0027] See also Figure 1-2The utility model provides a steam turbine generator cooling water circulation device, including a steam turbine generator body 1, first conduits 2 are installed on both sides of the outer end of the steam turbine generator body 1, and the bottom of the right first conduit 2 is connected to a cooling box 3, a controller 4 is installed at the front end of the cooling box 3, the left side of the cooling box 3 is connected to a second conduit 5, and the water outlet end of the second conduit 5 is connected to a water tank 6, a water pump 7 is installed inside the water tank 6, and the left side of the water pump 7 is connected to the left first conduit 2, and also includes a self-cleaning filter device 8 arranged inside the water tank 6.

[0028] See also Figure 3 The self-cleaning filtering device 8 in this embodiment includes a filter cartridge 81 arranged on the right side of the water tank 6 to realize the auxiliary filtering and purification treatment of circulating water, a connecting shaft 82 vertically fastened to the upper end of the filter cartridge 81 and rotatably connected to the upper end of the right side of the water tank 6, a driven wheel 83 correspondingly fastened to the outside of the connecting shaft 82, a belt 84 transmission-connected to the outside of the driven wheel 83, a driving wheel 85 transmission-connected to the right side of the belt 84, and the driven wheel 83, the belt 84 and the driving wheel 85 form a lateral transmission state, and a servo motor connected to the lower end of the driving wheel 85. The motor 86 is installed on the right side of the water tank 6 and is sleeved on the box body 87 on the outside of the servo motor 86, thereby realizing the protection of the parts arranged inside. Correspondingly, a base 88 is installed on the lower end of the filter cartridge 81 and connected to the bottom of the right side of the inside of the filter cartridge 81. A discharge port 89 is arranged on the left side of the base 88 to realize the auxiliary discharge of impurities. A cleaning component 810 is installed inside the filter cartridge 81 to scrape and clean the filter holes on the outside of the filter cartridge 81. A cleaning component 811 is installed on the outside of the lower end of the cleaning component 810 to scrape and collect impurities for cleaning.

[0029] Among them, a ball a is also provided at the bottom of the filter cartridge 81, and the ball a is embedded in the upper end of the base 88, so that the filter cartridge 81 and the base 88 can achieve smooth rotation connection and cooperation;

[0030] Filter holes are equidistantly provided on the outside of the filter cartridge 81, and balls a are rollingly embedded in the four corners of the bottom of the filter cartridge 81, ensuring that the filter cartridge 81 can cooperate with the balls a arranged at the four corners of the bottom and can smoothly rotate centrifugally along the upper end of the base 88; a solenoid valve is built into the discharge port 89, and the discharge port 89 runs through the lower end of the right side of the water tank 6, ensuring that the discharge port 89 can be efficiently opened and closed for discharge through the internal solenoid valve.

[0031] See also Figure 4 The cleaning assembly 810 in this embodiment includes a vertical rod 8101 vertically plugged into the middle of the upper end of the base 88 for support cooperation, three horizontal bars 8102 equidistantly fastened to the right side of the vertical rod 8101, corresponding compression springs 8103 built into the three horizontal bars 8102 for elastic compression cooperation, corresponding plug-in rods 8104 plugged into the three horizontal bars 8102, and a scraper 8105 installed on the right side of the three plug-in rods 8104 and against the inner wall of the filter cartridge 81.

[0032] Specifically, the horizontal bar 8102, the compression spring 8103 and the connecting rod 8104 are all equidistantly arranged laterally along the right side of the vertical rod 8101, and the left side of the connecting rod 8104 is against the compression spring 8103 to ensure that the connecting rod 8104 cooperates with the elastic force of the compression spring 8103 to perform efficient compression and support cooperation.

[0033] See also Figure 5 The cleaning assembly 811 in this embodiment includes a sweeping strip 8111 which is correspondingly sleeved on the outer side of the lower end of the vertical rod 8101, a sponge strip 8112 which is correspondingly embedded in the lower end of the sweeping strip 8111 for rotating scraping and cleaning, a connecting column 8113 which is vertically fastened and inserted into the upper end of the sweeping strip 8111, a horizontal plate 8114 which is connected to the upper end of the connecting column 8113, and the horizontal plate 8114 and the connecting column 8113 are combined to form an L-shaped structure, a locking shaft 8115 which is locked on the upper end of the connecting column 8113 to ensure that the horizontal plate 8114 and the connecting column 8113 are firmly connected, and a mounting seat 8116 which is fixedly connected to the right side of the horizontal plate 8114 and is tightly connected to the inner part of the lower end of the filter cartridge 81.

[0034] To further explain, the sweeping strip 8111 is snap-fitted to the outer side of the lower end of the vertical pole 8101, and a sponge strip 8112 is laterally embedded in the lower end of the sweeping strip 8111, ensuring that the sweeping strip 8111 cooperates with the sponge strip 8112 at the lower end to perform efficient scraping and cleaning.

[0035] Here’s how it works:

[0036] When the present steam turbine generator cooling water circulation device is to be used, the water pump 7 provided on the left side of the water tank 6 can be driven by the controller 4 provided on the front side of the cooling box 3. In this way, the water pump 7 can introduce the cooling water in the water tank 6 into the steam turbine generator body 1 through the first conduit 2 externally connected to the left side, and lead it out to the cooling box 3 along the first conduit 2 on the other side to re-cool the cooling water. The cooled cooling water will be collected and stored in the water tank 6 again to be cooled and circulated again, so as to achieve efficient circulation cooling of the steam turbine generator body 1.

[0037] In order to ensure that the cooling water does not easily carry impurities when it is collected again in the water tank 6, which may affect the circulation process or circulation equipment, a self-cleaning filter device 8 is provided on the right side of the water tank 6. First, when the cooling water is collected again in the water tank 6, it will enter the filter cartridge 81 in advance, and the filter holes opened on the outside of the filter cartridge 81 can be used to filter and purify the cooling water, so as to ensure the cleanliness of the collected cooling water. In order to speed up the filtering and purification efficiency, the servo motor 86 provided in the box body 87 can be driven to realize the top connection of the servo motor 86 with the main The rotation of the driving wheel 85, in cooperation with the driving wheel 85 and the transmission connection belt 84 outside the driving wheel 85, can drive the driven wheel 83 connected to the left side of the belt 84. In this way, the connecting shaft 82 connected to the middle of the driven wheel 83 will quickly rotate the filter cartridge 81 as a whole, so that the filter cartridge 81 can perform centrifugal rotation activities to accelerate the cooling water filtration and purification efficiency. At the same time, in cooperation with the ball a provided at the four corners of the bottom of the filter cartridge 81, it can ensure that the filter cartridge 81 can perform stable centrifugal rotation activities along the upper end of the base 88. In this way, the cooling water can be efficiently centrifugally rotated and filtered;

[0038] During the long-term centrifugal filtration of the filter cartridge 81, the filtered impurities are more likely to clog the external filter holes. For this reason, a cleaning assembly 810 is provided inside the base 88, that is, the vertical rod 8101 is connected to the combination of the compression spring 8103 and the plug-in rod 8104 through the horizontal bars 8102 provided at three places on the right side, and the three plug-in rods 8104 are externally connected to the scraper 8105, so that the scraper 8105 is in a vertically stable state as a whole and abuts against the inner wall of the filter cartridge 81. In this way, when the filter cartridge 81 is centrifugally rotated, the scraper 8105 can quickly scrape and clean the inner wall of the filter cartridge 81 and the clogged filter holes to ensure the filtration and purification efficiency. In addition, the elastic force of the compression spring 8103 can keep the scraper 8105 in a highly stable and tight state, thereby achieving the advantages of auxiliary scraping and cleaning of the inner wall of the scraper 8105 and ensuring the filtration and purification efficiency.

[0039] The scraped impurities will fall into the base 88. After the impurity scraping and cleaning activity is completed, the collection device inside the base 88 needs to be cleaned. For this purpose, a cleaning component 811 is arranged on the outer side of the lower end of the vertical rod 8101. First, the discharge port 89 connected to the lower end of the left side of the base 88 is opened. Then, the horizontal plate 8114, which is tightly connected to the right side of the lower end of the filter cartridge 81 through the mounting seat 8116, is driven by the centrifugal rotation of the filter cartridge 81 to carry out the left side of the fastened connection. Driven by the connecting column 8113, the connecting column 8113 can then drive the sweeping strip 8111 connected to the bottom to make the sweeping strip 8111 rotate along the circumference of the lower end of the vertical rod 8101. In this way, the sponge strip 8112 embedded in the lower end of the sweeping strip 8111 will push the impurities collected inside the base 88 to move the impurities to the discharge port 89 for rapid discharge of the impurities, thereby ensuring the cleanliness of the filter cartridge 81 and the base 88, thereby achieving the advantage of auxiliary circumferential push and clean discharge of the collected impurities.

[0040] The utility model provides a steam turbine generator cooling water circulation device, which is provided with a self-cleaning filter device 8, that is, in cooperation with a filter cartridge 81, auxiliary filtering and purification of cooling water can be achieved, and under the transmission of a driving wheel 85, a belt 84 and a driven wheel 83, the filter cartridge 81 can be centrifugally rotated to accelerate the cooling water filtering and purification efficiency, and a cleaning component 810 is provided, that is, an internal scraper 8105 can assist in scraping and cleaning the centrifugally rotating filter cartridge 81, reduce the blockage of external filter holes, and cause the phenomenon of reduced filtering efficiency, thereby achieving the advantage of auxiliary scraping and cleaning of the inner wall of the scraper 8105 to ensure the filtering and purification efficiency, and a cleaning component 811 is provided, that is, a cross plate 8114 can move synchronously with the filter cartridge 81, and cooperate with a connecting column 8113 to drive the sweeping bar 8111 to rotate, so that a sponge bar 8112 installed at the bottom of the sweeping bar 8111 can collect impurities and scrape and export them, thereby achieving the advantage of auxiliary circumferential promotion and cleaning of the collected impurities.

[0041] The above description is only a preferred example of the present invention and is not intended to limit the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments or replace some of the technical features therein by equivalents. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A steam turbine generator cooling water circulation device, comprising a steam turbine generator body (1), first conduits (2) are installed on both sides of the outer end of the steam turbine generator body (1), and the bottom of the first conduit (2) on the right side is connected to a cooling box (3), a controller (4) is installed at the front end of the cooling box (3), the left side of the cooling box (3) is connected to a second conduit (5), and the water outlet end of the second conduit (5) is connected to a water tank (6), a water pump (7) is installed inside the water tank (6), and the left side of the water pump (7) is connected to the first conduit (2) on the left side; Features: The invention also comprises a self-cleaning filter device (8) arranged inside the water tank (6), wherein the self-cleaning filter device (8) comprises a filter cartridge (81) arranged on the right side inside the water tank (6), a connecting shaft (82) installed on the upper end of the filter cartridge (81), a driven wheel (83) arranged on the outer side of the connecting shaft (82), a belt (84) drivingly connected to the outer side of the driven wheel (83), a driving wheel (85) connected to the right side of the belt (84), a servo motor (86) connected to the lower end of the driving wheel (85), a box (87) installed on the right side of the water tank (6) and sleeved on the outer side of the servo motor (86), a base (88) arranged at the lower end of the filter cartridge (81), a discharge port (89) installed on the left side of the base (88), a cleaning component (810) arranged inside the filter cartridge (81), and a cleaning component (811) installed at the lower end of the cleaning component (810).

2. A steam turbine generator cooling water circulation device according to claim 1, characterized in that: The cleaning assembly (810) comprises a vertical rod (8101) plugged into the upper end of the base (88), a horizontal bar (8102) arranged on the right side of the vertical rod (8101), a compression spring (8103) installed inside the horizontal bar (8102), a plug-in rod (8104) plugged into the inside of the horizontal bar (8102), and a scraper (8105) arranged on the right side of the plug-in rod (8104).

3. The cooling water circulation device for a steam turbine generator according to claim 1, characterized in that: The cleaning component (811) comprises a sweeping strip (8111) mounted on the outer side of the lower end of the cleaning component (810), a sponge strip (8112) embedded in the lower end of the sweeping strip (8111), a connecting post (8113) plugged into the upper end of the sweeping strip (8111), a transverse plate (8114) connected to the upper end of the connecting post (8113), a locking shaft (8115) locked to the upper end of the connecting post (8113), and a mounting seat (8116) fixedly arranged on the right side of the transverse plate (8114) and tightly connected to the inner part of the lower end of the filter cartridge (81).

4. The cooling water circulation device for a steam turbine generator according to claim 1, characterized in that: A ball (a) is also provided at the bottom of the filter cartridge (81), and the ball (a) is embedded in the upper end of the base (88).

5. The cooling water circulation device for a steam turbine generator according to claim 1, characterized in that: The outer side of the filter cartridge (81) is provided with filter holes at equal intervals, and balls (a) are rollingly embedded in the four corners of the bottom of the filter cartridge (81).

6. The cooling water circulation device for a steam turbine generator according to claim 1, characterized in that: The discharge port (89) is equipped with a solenoid valve, and the discharge port (89) passes through the lower right end of the water tank (6).

7. The cooling water circulation device for a steam turbine generator according to claim 2, characterized in that: The horizontal bar (8102), the compression spring (8103) and the plug-in rod (8104) are all arranged laterally and equidistantly along the right side of the vertical rod (8101), and the left side of the plug-in rod (8104) is against the compression spring (8103).

8. The cooling water circulation device for a steam turbine generator according to claim 3, characterized in that: The sweeping strip (8111) is snap-connected with the outer side of the lower end of the vertical rod (8101), and a sponge strip (8112) is transversely embedded in the lower end of the sweeping strip (8111).

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