CN210321282U

CN210321282U - Closed-loop circulating cooling water system of steam condenser

Info

Publication number: CN210321282U
Application number: CN201921298517.8U
Authority: CN
Inventors: 任庆朋; 付林静; 郭龙
Original assignee: Datang Yuncheng Power Generation Co Ltd
Current assignee: Datang Yuncheng Power Generation Co Ltd
Priority date: 2019-08-12
Filing date: 2019-08-12
Publication date: 2020-04-14
Anticipated expiration: 2029-08-12

Abstract

The utility model discloses a closed circulating cooling water system of steam turbine condenser, including inlet tube, outlet pipe and spiral pipe, the top and the below at the cooling tank are installed respectively to inlet tube and outlet pipe, the whole perpendicular inside that distributes at the cooling tank of spiral pipe, the bottom of cooling tank is connected through water pipe and water pump, and the output of water pump is linked together through connecting pipe and the sleeve pipe that is located the bottom, the center department of cooling tank installs the hollow shaft, and the top of hollow shaft is connected through belt pulley mechanism and motor, the flabellum is installed to the bottom outer wall of urceolus, install level and equidistant bull stick that distributes on the hollow shaft. This steam condenser closed cycle cooling water system through rotatory diversified mode that sprays, has improved hydrothermal cooling efficiency in the spiral pipe greatly to it is rotatory to utilize rotatory effort to drive the flabellum in real time, combines the use of forced air cooling structure, has effectively reduced the loss of cooling water.

Description

Closed-loop circulating cooling water system of steam condenser

Technical Field

The utility model relates to a steam turbine condenser technical field specifically is steam turbine condenser closed circuit recirculating cooling water system.

Background

The steam condenser is a device for dissipating heat by a water cooling principle, and an active object of the steam condenser is a device which can generate a large amount of heat when a thermal power plant boiler and the like run, cooling water in the steam condenser also needs to be circularly cooled and utilized by using a corresponding cooling system, and in order to reduce the loss of the cooling water caused by other reasons such as evaporation, most of the existing cooling water systems are closed-loop circulating systems, so that the steam condenser has the following defects in practical use:

the spiral pipe that advances among the condenser and the drainage was through in the cooling tank cools off, and the cooling method to the spiral pipe among the prior art is for carrying out the operation of shower water from the top, because the upper and lower distribution state of spiral pipe, leads to spraying perpendicularly or the effect that the avris sprayed comparatively single, and cooling efficiency is lower, and further the condenser that leads to reduces boiler equipment's cooling efficiency.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a steam turbine condenser closed circuit recirculating cooling water system to the cooling method who proposes among the prior art among the above-mentioned background art to the spiral tube is for carrying out the operation of shower water from the top, because the upper and lower distribution state of spiral tube, leads to spraying perpendicularly or the effect that the avris sprayed comparatively single, and cooling efficiency is lower, the further problem that leads to the condenser to boiler equipment's cooling efficiency reduction.

In order to achieve the above object, the utility model provides a following technical scheme: steam turbine condenser closed cycle cooling water system, including inlet tube, outlet pipe and spiral pipe, the top and the below at the cooling tank are installed respectively to inlet tube and outlet pipe, and the inside of cooling tank is provided with the spiral pipe, the whole vertical distribution of spiral pipe is in the inside of cooling tank, and both coaxial line settings, and the top and the bottom of spiral pipe are linked together with inlet tube and outlet pipe respectively, the bottom of cooling tank is connected through water pipe and water pump, and the output of water pump is linked together through the connecting pipe and the sleeve pipe that is located the bottom, the center department of cooling tank installs the hollow shaft, and the top of hollow shaft is connected through belt pulley mechanism and motor to the urceolus is installed on the inside top of cooling tank, the flabellum is installed to the bottom outer wall of urceolus, install level and equidistant distribution's.

Preferably, the sleeve pipe all has the distribution on outlet pipe and inlet tube, and is linked together through the standpipe between 2 sleeve pipes to the sleeve pipe that is located the top is linked together through return bend and hollow shaft, and both are the bearing connection simultaneously.

Preferably, the outer cylinder is rotatably connected with the inner wall of the cooling tank, the inner wall of the outer cylinder is not in contact with the hollow shaft, and the first small gear on the outer cylinder is meshed with the first large gear at the bottom end of the vertical shaft.

Preferably, the vertical shaft is vertically and rotatably arranged on the top wall of the cooling tank, and a second small gear at the top end of the vertical shaft is meshed with a second large gear on the hollow shaft.

Preferably, the hollow structure inside the rotating rod is communicated with the hollow structure of the hollow shaft through a connecting hole, and the end of the rotating rod is provided with a spray hole.

Compared with the prior art, the beneficial effects of the utility model are that: the closed-circuit circulating cooling water system of the steam condenser greatly improves the cooling efficiency of hot water in a spiral pipe by a rotary multi-directional spraying mode, and effectively reduces the loss of cooling water by driving fan blades to rotate in real time by using a rotary acting force and combining with the use of an air cooling structure;

1. the design of the sleeve and the related structure is convenient for initially cooling hot water in a precooling mode, the design is more reasonable, and the internal cooling pressure is reduced;

2. the outer cylinder, the vertical shaft and other structures are used, so that the fan blades can synchronously rotate at high speed in the cooling tank under the action of transmission of a plurality of gears, and the purpose of energy conservation and air cooling is realized;

3. the hollow shaft and the rotating rod structure which are inserted into the spiral pipe in a penetrating mode are convenient for spraying cooling water uniformly to all positions of the spiral pipe through the spray holes, and cooling efficiency is guaranteed.

Drawings

FIG. 1 is a schematic front view of the present invention;

FIG. 2 is a schematic view of the vertical axis elevation structure of the present invention;

fig. 3 is a schematic view of the structure of the depression profile of the rotating rod of the present invention.

In the figure: 1. a water inlet pipe; 2. a water outlet pipe; 3. a cooling tank; 4. a spiral tube; 5. a water pump; 6. a connecting pipe; 61. a sleeve; 62. a vertical tube; 63. bending the pipe; 7. a hollow shaft; 8. an electric motor; 9. a belt pulley mechanism; 10. an outer cylinder; 101. a first pinion gear; 102. a first bull gear; 103. a vertical axis; 104. a second pinion gear; 105. a second bull gear; 11. a fan blade; 12. a rotating rod; 121. spraying a hole; 122. and connecting the holes.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides a technical solution: a closed-circuit circulating cooling water system of a steam turbine condenser comprises a water inlet pipe 1, a water outlet pipe 2, a cooling tank 3, a spiral pipe 4, a water pump 5, a connecting pipe 6, a sleeve 61, a vertical pipe 62, a bent pipe 63, a hollow shaft 7, a motor 8, a belt pulley mechanism 9, an outer barrel 10, a first pinion 101, a first gearwheel 102, a vertical shaft 103, a second pinion 104, a second gearwheel 105, a fan blade 11, a rotating rod 12, a spray hole 121 and a connecting hole 122, wherein the water inlet pipe 1 and the water outlet pipe 2 are respectively arranged above and below the cooling tank 3, the spiral pipe 4 is arranged inside the cooling tank 3, the spiral pipe 4 is integrally and vertically distributed inside the cooling tank 3 and is coaxially arranged, the top end and the bottom end of the spiral pipe 4 are respectively communicated with the water inlet pipe 1 and the water outlet pipe 2, the bottom end of the cooling tank 3 is connected with the water pump 5 through a water pipe, the hollow shaft 7 is installed at the center of the cooling tank 3, the top end of the hollow shaft 7 is connected with the motor 8 through the belt pulley mechanism 9, the outer cylinder 10 is installed at the top end of the inside of the cooling tank 3, the fan blades 11 are installed on the outer wall of the bottom end of the outer cylinder 10, and the rotating rods 12 which are horizontally distributed at equal intervals are installed on the hollow shaft 7.

The sleeve 61 is distributed on the water outlet pipe 2 and the water inlet pipe 1, the 2 sleeves 61 are communicated with each other through the stand pipe 62, the sleeve 61 positioned at the top end is communicated with the hollow shaft 7 through the bent pipe 63, and the two sleeves are connected by the bearing, cold water in the connecting pipe 6 can enter the hollow shaft 7 after flowing through the sleeves 61, the stand pipes 62 and the bent pipe 63, and when the cold water flows through the sleeve 61 on the water inlet pipe 1, the cold water can carry out precooling operation on hot water flowing in the water inlet pipe 1.

The inner walls of the outer cylinder 10 and the cooling tank 3 are rotationally connected, the inner walls of the outer cylinder 10 and the cooling tank are not in contact with the hollow shaft 7, a first small gear 101 on the outer cylinder 10 is meshed with a first large gear 102 at the bottom end of a vertical shaft 103, the vertical shaft 103 is vertically rotatably installed on the top wall of the cooling tank 3, a second small gear 104 at the top end of the vertical shaft 103 is meshed with a second large gear 105 on the hollow shaft 7, the hollow shaft 7 rotates simultaneously under the meshing transmission of the second large gear 105 and the second small gear 104 and the meshing transmission action of the first large gear 102 and the first small gear 101, the hollow shaft 7 rotates to drive the outer cylinder 10 sleeved outside the hollow shaft to rotate at a high speed, so that the fan blades 11 are driven to rotate synchronously at a high speed, and the water in the spiral pipe 4 is efficiently.

The hollow structure inside the rotating rod 12 is communicated with the hollow structure of the hollow shaft 7 through the connecting hole 122, the end of the rotating rod 12 is provided with the spraying hole 121, cold water inside the hollow shaft 7 firstly passes through the connecting hole 122 in fig. 3 to enter the cavity inside the rotating rod 12 and finally is sprayed out through the spraying hole 121 at the end of the rotating rod 12, and the rotating rod 12 is in a rotating state, so that the cooling water sprayed out of the rotating rod 12 can be uniformly sprayed on the surface of each position of the spiral pipe 4.

The working principle is as follows: firstly, a water inlet pipe 1 and a water outlet pipe 2 in fig. 1 are respectively connected with a water outlet end and a water inlet end of a steam turbine condenser, which are not described in detail in the prior art, when a cooling operation is performed, hot water enters the interior of a spiral pipe 4 from the water inlet pipe 1, a water pump 5 operates to pump the water in a frame structure at the bottom of a cooling tank 3 in fig. 1 on the side of the water tank into a connecting pipe 6, cold water in the connecting pipe 6 enters the interior of a hollow shaft 7 after flowing through each sleeve 61, a vertical pipe 62 and a bent pipe 63, and when the cold water flows through the sleeve 61 on the water inlet pipe 1, the cold water can perform a precooling operation on the hot water flowing in the water inlet pipe 1;

the operation of the motor 8 in fig. 1 will drive the hollow shaft 7 to rotate synchronously in the cooling tank 3 through the pulley mechanism 9, and correspondingly, the rotating rod 12 fixed on the hollow shaft 7 will also rotate synchronously, the cold water in the hollow shaft 7 will firstly pass through the connecting hole 122 in fig. 3 to enter the cavity in the rotating rod 12 and finally will be sprayed out through the spraying hole 121 at the end of the rotating rod 12, because the rotating rod 12 is in the rotating state, the cooling water sprayed out from the rotating rod 12 will be sprayed more evenly on the surface of each position of the spiral pipe 4, and the rotation of the hollow shaft 7 will drive the vertical shaft 103 to rotate at a rotation speed greater than that of the hollow shaft 7 under the meshing transmission of the second large gear 105 and the second small gear 104, and the outer cylinder 10 will rotate at a rotation speed greater than that of the vertical shaft 103 under the meshing transmission action of the first large gear 102 and the first small gear 101 in fig. 2, therefore, the rotation of the hollow shaft 7 drives the outer cylinder 10 sleeved outside the hollow shaft to rotate at a high speed, so as to drive the fan blades 11 to synchronously rotate at a high speed, thereby performing efficient cooling operation on the water in the spiral pipe 4.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. Steam turbine condenser closed cycle cooling water system, including inlet tube (1), outlet pipe (2) and spiral pipe (4), its characterized in that: the utility model discloses a cooling device, including cooling tank (3), inlet tube (1) and outlet pipe (2) install respectively in the top and the below of cooling tank (3), and the inside of cooling tank (3) is provided with spiral pipe (4), spiral pipe (4) whole vertical distribution is in the inside of cooling tank (3), and both coaxial sets up, and the top and the bottom of spiral pipe (4) are linked together with inlet tube (1) and outlet pipe (2) respectively, the bottom of cooling tank (3) is connected through water pipe and water pump (5), and the output of water pump (5) is linked together through connecting pipe (6) and sleeve pipe (61) that are located the bottom, the center department of cooling tank (3) installs hollow shaft (7), and the top of hollow shaft (7) is connected through belt pulley mechanism (9) and motor (8) to the inside top of cooling tank (3) is installed urceolus (10), flabellum (11) are installed to the bottom outer wall of urceolus, the hollow shaft (7) is provided with rotating rods (12) which are horizontally distributed at equal intervals.

2. The steam condenser closed-circuit circulating cooling water system according to claim 1, characterized in that: sleeve pipe (61) all have the distribution on outlet pipe (2) and inlet tube (1), and communicate through standpipe (62) between 2 sleeve pipes (61) to sleeve pipe (61) that are located the top are linked together through return bend (63) and hollow shaft (7), and both are the bearing connection simultaneously.

3. The steam condenser closed-circuit circulating cooling water system according to claim 1, characterized in that: the inner walls of the outer cylinder (10) and the cooling tank (3) are in rotary connection, the inner walls of the outer cylinder and the cooling tank are not in contact with the hollow shaft (7), and a first small gear (101) on the outer cylinder (10) is meshed with a first large gear (102) at the bottom end of the vertical shaft (103).

4. The steam condenser closed-circuit circulating cooling water system according to claim 3, characterized in that: the vertical shaft (103) is vertically and rotatably arranged on the top wall of the cooling tank (3), and a second small gear (104) at the top end of the vertical shaft (103) is meshed with a second large gear (105) on the hollow shaft (7).

5. The steam condenser closed-circuit circulating cooling water system according to claim 1, characterized in that: the hollow structure in the rotating rod (12) is communicated with the hollow structure of the hollow shaft (7) through the connecting hole (122), and the end of the rotating rod (12) is provided with a spray hole (121).