Combined cycle generator set

Abstract

The utility model relates to the technical field of generator sets, in particular to a combined cycle generator set which comprises a circulating water pump and a water inlet pipe, a condenser is arranged on the left side of the circulating water pump, a condensate pump is arranged on the left side of the condenser, a waste heat boiler is arranged on the left side of the condensate pump, and a gas turbine is arranged on the right side of the waste heat boiler. Through the arrangement of a first sieve plate, a supporting ring frame, a second sieve plate, a waterproof motor, cleaning rods and smashing blades, the device can enlarge the filtering area through the first sieve plate and the second sieve plate, so that seawater is sucked into the generator body more quickly through a water inlet pipe, and the waterproof motor and a transmission shaft drive the two cleaning rods to rotate; blockages on the outer sides of the first sieve plate and the second sieve plate are scraped through the cleaning rod, large objects are smashed through the smashing blades, the device can automatically clean the blockages around the water inlet pipe, the probability of blockage of the water pump is reduced, and the frequency of manual dredging is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of generator sets, in particular to a combined cycle generator set. Background Art

[0002] Gas-steam combined cycle power generation units are gaining increasing attention and development in foreign power industries due to their advantages of high efficiency and low consumption, fast start-up, flexible regulation, high availability, low investment, short construction period and low environmental pollution. As an advanced power generation technology, they are gradually being used in my country's power production industry.

[0003] A gas-steam combined cycle power generation unit requires a circulating water pump to draw a large amount of seawater from the sea for use as cooling water. The circulating water pumps of some existing combined cycle power generation units can only filter seawater. If a large amount of solid matter in the seawater accumulates on the outside of the water pump, or if large foreign objects are adsorbed by the suction force of the water pump, the water pump is likely to be blocked, requiring manual unclogging, which is a time-consuming and labor-intensive process. Therefore, a combined cycle power generation unit is proposed to address the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a combined cycle generator set to solve the problem that the circulating water pumps of some existing combined cycle generator sets are easily blocked and need to be manually unblocked, which is a time-consuming and labor-intensive process.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A combined cycle generator set includes a circulating water pump and a water inlet pipe. A condenser is provided on the left side of the circulating water pump, a condensate pump is provided on the left side of the condensate pump, a waste heat boiler is provided on the left side of the condensate pump, a gas turbine is provided on the right side of the waste heat boiler, a steam turbine unit is provided on the right side of the gas turbine, and a generator body is provided on the right side of the steam turbine unit. A water inlet pipe is provided on the front side of the generator body. A first sieve plate is fixedly connected to the front side of the water inlet pipe, a support ring frame is fixedly connected to the front side of the first sieve plate, a second sieve plate is fixedly connected to the front side of the support ring frame, a mounting shell is fixedly connected to the front side of the second sieve plate, a waterproof motor is fixedly connected to the interior of the mounting shell, a limiting ring sleeve is fixedly connected to the outside of the water inlet pipe, a main shaft of the waterproof motor is fixedly connected to a transmission shaft, cleaning rods are fixedly connected to the left and right ends of the transmission shaft, and a plurality of crushing blades are fixedly connected to the upper and lower sides of the cleaning rod. The rear ends of the two transmission shafts are fixedly connected by two reinforcement shafts, and the reinforcement shaft and the limiting ring sleeve are rotatably connected.

[0007] Preferably, the gas turbine, steam turbine unit and generator body are respectively located on the rear side of the condensate pump, condenser and circulating water pump, the first sieve plate and the second sieve plate are both annular structures, the first sieve plate and the second sieve plate are symmetrical front to back, and the support ring frame is a circular ring structure.

[0008] Preferably, the mounting shell is a cylindrical shell, the rear side surface of the mounting shell is directly the same diameter as the front end of the second sieve plate, the front side of the mounting shell is provided with a rotating slot, the main shaft of the waterproof motor is rotatably connected to the mounting shell, and the rear side of the transmission shaft is fitted with the mounting shell.

[0009] Preferably, the limiting ring sleeve is a circular ring structure, the front half of the limiting ring sleeve is provided with a rotation groove, the two reinforcing shafts are symmetrically distributed up and down, and the inner side of the reinforcing shaft is in contact with the water inlet pipe.

[0010] Preferably, the two cleaning rods are symmetrically distributed on the left and right, and the cleaning rods are both bent structures. The inner sides of the cleaning rods are in contact with the first screen plate, the support ring frame, and the second screen plate, and the crushing blades are equidistantly distributed in the front-to-back direction.

[0011] Compared with the prior art, the beneficial effects of the present invention are:

[0012] In the utility model, by providing a first sieve plate, a support ring frame, a second sieve plate, a waterproof motor, a cleaning rod and a crushing blade, the device can increase the filtration area through the first sieve plate and the second sieve plate, so that seawater can be sucked into the generator body through the water inlet pipe more quickly. The two cleaning rods are driven to rotate by the waterproof motor and the transmission shaft, and the blockages on the outside of the first sieve plate and the second sieve plate are scraped off by the cleaning rods, and larger objects are broken into pieces by the crushing blades. The device can automatically clean the blockages around the water inlet pipe, reduce the probability of water pump blockage, and greatly reduce the frequency of manual dredging. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a top view of the overall structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the structure of the circulating water pump of the utility model;

[0015] Figure 3 This is a cross-sectional view of the cleaning component structure of the utility model;

[0016] Figure 4 This is a cross-sectional view of the mounting structure of the support ring frame of the utility model;

[0017] Figure 5 This is a cross-sectional view of the installation structure of the crushing blade of the utility model.

[0018] In the figure: 1. Circulating water pump; 2. Condenser; 3. Condensate pump; 4. Waste heat boiler; 5. Gas turbine; 6. Steam turbine unit; 7. Generator body; 8. Water inlet pipe; 9. First sieve plate; 10. Support ring frame; 11. Second sieve plate; 12. Mounting shell; 13. Waterproof motor; 14. Limiting ring; 15. Drive shaft; 16. Cleaning rod; 17. Crushing blade; 18. Reinforcement shaft. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0020] In the description of the present invention, it needs to be understood that the directions or positional relationships indicated by directional words such as "front, back, up, down, left, right", "horizontal, vertical, vertical, horizontal" and "top, bottom" are usually based on the directions or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description. Unless otherwise specified, these directional words do not indicate or imply that the device or element referred to must have a specific direction or be constructed and operated in a specific direction. Therefore, they cannot be understood as limiting the scope of protection of the present invention; the directional words "inside and outside" refer to the inside and outside relative to the outline of each component itself.

[0021] In addition, it should be noted that the use of words such as "first" and "second" to limit components is only for the convenience of distinguishing the corresponding components. Unless otherwise stated, the above words have no special meaning and therefore cannot be understood as limiting the scope of protection of this utility model.

[0022] See also Figure 1-5 , the utility model provides a technical solution:

[0023] A combined cycle generator set includes a circulating water pump 1 and a water inlet pipe 8. A condenser 2 is provided on the left side of the circulating water pump 1. A condensate pump 3 is provided on the left side of the condensate pump 2. A waste heat boiler 4 is provided on the left side of the waste heat boiler 4. A gas turbine 5 is provided on the right side of the gas turbine 5. A steam turbine unit 6 is provided on the right side of the steam turbine unit 6. A generator body 7 is provided on the right side of the steam turbine unit 6. A water inlet pipe 8 is provided on the front side of the generator body 7. A first sieve plate 9 is fixedly connected to the front side of the water inlet pipe 8. A support ring frame 10 is fixedly connected to the front side of the first sieve plate 9. A second sieve plate 11 is fixedly connected to the front side, a mounting shell 12 is fixedly connected to the front side of the second sieve plate 11, a waterproof motor 13 is fixedly connected to the inside of the mounting shell 12, a limiting ring sleeve 14 is fixedly connected to the outside of the water inlet pipe 8, a main shaft of the waterproof motor 13 is fixedly connected to a transmission shaft 15, cleaning rods 16 are fixedly connected to the left and right ends of the transmission shaft 15, and a plurality of crushing blades 17 are fixedly connected to the upper and lower sides of the cleaning rod 16, and the rear ends of the two transmission shafts 15 are fixedly connected by two reinforcement shafts 18, and the reinforcement shaft 18 and the limiting ring sleeve 14 are rotatably connected.

[0024] The gas turbine 5, the steam turbine unit 6 and the generator body 7 are respectively located at the rear sides of the condensate pump 3, the condenser 2 and the circulating water pump 1. The first sieve plate 9 and the second sieve plate 11 are both annular structures. The first sieve plate 9 and the second sieve plate 11 are symmetrical front and back. The support ring frame 10 is a circular ring structure, which can prevent the first sieve plate 9 and the second sieve plate 11 from deforming, so that the cleaning rod 16 and the first sieve plate 9 and the second sieve plate 11 remain in contact; the mounting shell 12 is a cylindrical shell, and the rear side surface of the mounting shell 12 is directly the same as the front end diameter of the second sieve plate 11. The front side of the mounting shell 12 is provided with a rotating slot, and the main shaft of the waterproof motor 13 is rotatably connected to the mounting shell 12, and the transmission shaft 15 The rear side of the cleaning rod 16 fits with the mounting shell 12, and the mounting shell 12 can make the transmission shaft 15 rotate more stably; the limiting ring sleeve 14 is a circular ring structure, and the front half of the limiting ring sleeve 14 is provided with a rotation groove. The two reinforcing shafts 18 are symmetrically distributed up and down, and the inner side of the reinforcing shaft 18 fits with the water inlet pipe 8. The reinforcing shaft 18 can make the cleaning rod 16 rotate more stably; the two cleaning rods 16 are symmetrically distributed left and right, and the cleaning rods 16 are both bent structures. The inner side of the cleaning rod 16 fits with the first screen plate 9, the support ring frame 10, and the second screen plate 11. The crushing blades 17 are equidistantly distributed in the front and back directions, and larger objects can be broken by the crushing blades 17.

[0025] Working process: Turn on the power before use. The circulating water pump 1, condenser 2, condensing water pump 3, waste heat boiler 4, gas turbine 5, steam turbine unit 6, generator body 7 and waterproof motor 13 of the device are all electrical instruments. The waterproof motor 13 of the device is equipped with an external controller, and the operating status of the waterproof motor 13 can be remotely controlled by the external controller. The circulating water pump 1, condenser 2, condensing water pump 3, waste heat boiler 4, gas turbine 5, steam turbine unit 6 and generator body 7 of the device can constitute a gas-steam combined cycle generator set. Existing technology: When using this device, first start the circulating water pump 1, condenser 2, condensate pump 3, waste heat boiler 4, gas turbine 5, steam turbine unit 6 and generator body 7 to start the gas-steam combined cycle generator set, and then remotely start the waterproof motor 13 through the external controller. At this time, the generator body 7 pumps water, and the seawater is filtered by the first sieve plate 9 and the second sieve plate 11 on both sides of the support ring frame 10, and is sucked into the generator body 7 from the water inlet pipe 8. The waterproof motor 13 fixed by the mounting shell 12 can drive the transmission shaft 15 to rotate. 15 can make the two cleaning rods 16 rotate around the first sieve plate 9, the support ring frame 10 and the second sieve plate 11. The inner side of the cleaning rod 16 is in contact with the first sieve plate 9, the support ring frame 10 and the second sieve plate 11, so that objects adhering to the outer sides of the first sieve plate 9 and the second sieve plate 11 can be scraped off. While the cleaning rod 16 rotates, larger objects can be broken up by evenly distributed crushing blades 17. The rear ends of the two cleaning rods 16 are connected to the tail ends of the cleaning rods 16 and the reinforcement shafts 18 through two reinforcement shafts 18 to form a ring, which is fixed to the ring by the limiting ring sleeve 14. Limiting can make the cleaning rod 16 rotate stably; the device can increase the filtration area through the first sieve plate 9 and the second sieve plate 11, so that seawater can be sucked into the generator body 7 more quickly through the water inlet pipe 8, and the two cleaning rods 16 are driven to rotate by the waterproof motor 13 and the transmission shaft 15. The blockages on the outside of the first sieve plate 9 and the second sieve plate 11 are scraped off by the cleaning rods 16, and larger objects are broken into pieces by the crushing blades 17. The device can automatically clean the blockages around the water inlet pipe 8, reduce the probability of water pump blockage, and greatly reduce the frequency of manual dredging.

[0026] Any matters not described in detail in this specification are prior art known to those skilled in the art. Standard parts used in this utility model are commercially available, and special-shaped parts can be customized according to the description in the specification and the accompanying drawings. The specific connection methods of each part are all conventional means such as bolts, rivets, and welding that are mature in the prior art. The machinery, parts, and equipment are all conventional models in the prior art, and the circuit connections use conventional connection methods in the prior art, which will not be described in detail here.

[0027] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A combined cycle power generation unit, comprising a circulating water pump (1) and a water inlet pipe (8), characterized in that: A condenser (2) is provided on the left side of the circulating water pump (1), a condensate pump (3) is provided on the left side of the condensate pump (3), a waste heat boiler (4) is provided on the left side of the waste heat boiler (4), a gas turbine (5) is provided on the right side of the gas turbine (5), a steam turbine unit (6) is provided on the right side of the steam turbine unit (6), a generator body (7) is provided on the right side of the steam turbine unit (6), a water inlet pipe (8) is provided on the front side of the generator body (7), a first sieve plate (9) is fixedly connected to the front side of the water inlet pipe (8), a support ring frame (10) is fixedly connected to the front side of the first sieve plate (9), and a first sieve plate (9) is fixedly connected to the front side of the support ring frame (10). Two sieve plates (11), the front side of the second sieve plate (11) is fixedly connected to a mounting shell (12), the interior of the mounting shell (12) is fixedly connected to a waterproof motor (13), the outer side of the water inlet pipe (8) is fixedly connected to a limiting ring sleeve (14), the main shaft of the waterproof motor (13) is fixedly connected to a transmission shaft (15), the left and right ends of the transmission shaft (15) are fixedly connected to cleaning rods (16), the upper and lower sides of the cleaning rod (16) are fixedly connected to a plurality of crushing blades (17), the rear ends of the two transmission shafts (15) are fixedly connected by two reinforcement shafts (18), and the reinforcement shaft (18) and the limiting ring sleeve (14) are rotatably connected.

2. A combined cycle power generation unit according to claim 1, characterized in that: The gas turbine (5), steam turbine unit (6) and generator body (7) are respectively located at the rear side of the condensate pump (3), condenser (2) and circulating water pump (1); the first sieve plate (9) and the second sieve plate (11) are both annular structures; the first sieve plate (9) and the second sieve plate (11) are symmetrical front to back; and the support ring frame (10) is a circular ring structure.

3. The combined cycle power generation unit according to claim 1, characterized in that: The mounting shell (12) is a cylindrical shell. The rear side of the mounting shell (12) has the same diameter as the front end of the second sieve plate (11). A rotation slot is provided on the front side of the mounting shell (12). The main shaft of the waterproof motor (13) is rotatably connected to the mounting shell (12). The rear side of the transmission shaft (15) is in contact with the mounting shell (12).

4. The combined cycle power generation unit according to claim 1, characterized in that: The limiting ring sleeve (14) is a circular ring structure. The front half of the limiting ring sleeve (14) is provided with a rotation groove. The two reinforcing shafts (18) are symmetrically distributed up and down. The inner side of the reinforcing shaft (18) fits the water inlet pipe (8).

5. The combined cycle power generation unit according to claim 1, characterized in that: The two cleaning rods (16) are symmetrically distributed on the left and right. The cleaning rods (16) are all bent structures. The inner sides of the cleaning rods (16) are in contact with the first screen plate (9), the support ring frame (10), and the second screen plate (11). The crushing blades (17) are equidistantly distributed in the front-to-back direction.

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