Recovery device for condensed water of condensing steam turbine body shaft seal cooler

Abstract

The utility model relates to the technical field of condensed water recovery devices, and discloses a condensed water recovery device for a condensing steam turbine body shaft seal cooler, which comprises a shaft seal cooler main body, the bottom of the shaft seal cooler main body is fixedly connected with a support, and the left side of the shaft seal cooler main body is provided with a filtrate mechanism. A closing mechanism is arranged in the bottom of the liquid filtering mechanism, the liquid filtering mechanism comprises a liquid passing assembly, a liquid separating assembly and a liquid filtering assembly, and the liquid passing assembly is arranged on the left side of the shaft seal cooler body. According to the recovery device for condensed water of the shaft seal cooler of the condensing steam turbine body, condensed water generated by the shaft seal cooler body is filtered through the arranged filtrate mechanism and the arranged filter element, so that dust and other impurities do not exist in the sunk condensed water, subsequent abrasion to the interior of a machine caused by dust and other impurities is avoided, the service life of a steam turbine is prolonged, and the recovery device is suitable for popularization and application. And the liquid separation ring and the spraying pipe are uniformly distributed at the top in the liquid filtering barrel, so that water can uniformly fall into the filter element.

Description

Technical Field

[0001] The utility model relates to the technical field of condensate recovery devices, in particular to a condensate recovery device for a condensing steam turbine body shaft seal cooler. Background Art

[0002] The most commonly used condenser for steam turbines is the surface type. The cooling water is discharged into the cooling water pool or cooling water tower for cooling and then recycled. For power plants near rivers, lakes, if there is sufficient water, the cooling water discharged from the condenser can be directly discharged into the rivers, lakes, and lakes. This is called runoff cooling. However, this method may cause thermal pollution to rivers and lakes. Power plants in areas with severe water shortages can use air-cooled condensers. However, it has a large structure and consumes a lot of metal materials. Except for train power stations, it is rarely used in general power plants. Some old power plants use mixed condensers, in which the exhaust steam of the steam turbine is directly mixed with the cooling water for contact cooling. However, because the exhaust condensate is contaminated by the cooling water, it needs to be treated before it can be used as boiler feed water, and it is rarely used. The shaft seal cooler is used to extract the steam-gas mixture of the steam turbine seal system to prevent steam from leaking from the end seal into the steam engine room and oil system to pollute the environment and damage the oil quality. The steam-gas mixture enters the shaft seal cooler and is cooled into water, which heats the condensed water, and the remaining uncondensed gas is discharged into the atmosphere.

[0003] The condensed water generated by the existing shaft seal cooler is directly recycled when in use, and the condensed water is not processed in any intermediate links, which easily increases the content of impurities such as dust in the condensed water, causing damage to the inside of the machine when the condensed water is subsequently involved in work, thereby reducing the service life of the equipment. Utility Model Content

[0004] The utility model aims to provide a condensate recovery device for a condensing steam turbine body shaft seal cooler to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a condensate recovery device for a condensing steam turbine body shaft seal cooler, comprising a shaft seal cooler body, a bracket fixedly connected to the bottom of the shaft seal cooler body, a filtrate mechanism arranged on the left side of the shaft seal cooler body, and a closing mechanism arranged in the bottom of the filtrate mechanism.

[0006] The filtrate mechanism includes a liquid passing component, a liquid separation component and a filtrate component. The liquid passing component is arranged on the left side of the shaft seal cooler body, the liquid separation component is arranged at the top of the liquid passing component, and the filtrate component is arranged in the liquid passing component below the liquid separation component.

[0007] The closing mechanism comprises a closing component and a liquid outlet component. The closing component is arranged at the bottom of the liquid passing component, and the liquid outlet component is arranged at the bottom of the closing component.

[0008] Preferably, the liquid passing component comprises a liquid passing pipe, the liquid passing pipe is fixedly connected to the left side of the shaft seal cooler body, and a filtrate cylinder is fixedly connected to the bottom of the liquid passing pipe.

[0009] Preferably, the liquid separation component comprises a sealing plate, the sealing plate is fixedly connected to the inner ring of the filtrate cylinder, the bottom of the sealing plate is fixedly connected to a liquid separation ring, and the bottom of the liquid separation ring is fixedly connected to a spray pipe.

[0010] Preferably, the filtrate assembly comprises a grid plate, the grid plate is fixedly connected to the inner circle of the filtrate cylinder and is located below the liquid separation ring, a filter element is arranged below the grid plate, and a liquid-repellent plate is arranged at the bottom of the filter element.

[0011] Preferably, the outer ring of the filter element fits with the inner ring of the filtrate cylinder, and the outer ring of the liquid-repellent plate fits with the inner ring of the filtrate cylinder.

[0012] Preferably, the closing assembly comprises a threaded barrel, the threaded barrel is fixedly connected to the bottom of the outer ring of the filtrate barrel, the inner ring of the threaded barrel is threadedly connected with a threaded cover, and the top of the threaded cover is in contact with the bottom of the filtrate barrel.

[0013] Preferably, the liquid outlet assembly comprises a liquid outlet pipe, the liquid outlet pipe is fixedly connected to the bottom of the threaded cover, and a convex strip is fixedly connected to the outer ring of the liquid outlet pipe.

[0014] Compared with the prior art, the utility model provides a condensate recovery device for a condensing steam turbine body shaft seal cooler, which has the following beneficial effects:

[0015] 1. The condensate recovery device of the shaft seal cooler of the condensing steam turbine body has a filtrate mechanism and a filter element to filter the condensate generated by the shaft seal cooler body, so that there will be no dust or other impurities inside the sinking condensate, thereby avoiding subsequent wear on the inside of the machine and increasing the service life of the steam turbine. The liquid separator ring and the spray pipe are evenly distributed at the top of the filtrate cylinder, so that the water can evenly fall into the filter element, thereby improving the filtering effect of the condensate. The liquid-repelling plate evacuates the water falling through the filter element to prevent water from clogging and accumulating in the filtrate cylinder.

[0016] 2. The condensate recovery device for the shaft seal cooler of the condensing steam turbine body has a closing mechanism. The staff only needs to rotate the liquid outlet pipe to drive the threaded cover on the inner circle of the threaded cylinder to move upward to complete the closing of the filtrate cylinder. The operation is simple and convenient for the staff to use. The setting of the convex strip increases the friction generated when the staff applies force to the liquid outlet pipe to rotate it, which is convenient for the staff to apply force. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative labor:

[0018] Figure 1 It is a front schematic diagram of the utility model;

[0019] Figure 2 It is a sectional exploded view of some structures of the utility model;

[0020] Figure 3 It is a partial structural cross-sectional view of the liquid separation component;

[0021] Figure 4 It is a partial structural diagram of the filtrate mechanism.

[0022] In the figure: 1. filtrate mechanism; 11. liquid passing assembly; 1101. liquid passing pipe; 1102. filtrate cylinder; 12. liquid separation assembly; 1201. sealing plate; 1202. liquid separation ring; 1203. spray pipe; 13. filtrate assembly; 1301. grid plate; 1302. filter element; 1303. liquid-repelling plate; 2. closing mechanism; 21. closing assembly; 2101. threaded cylinder; 2102. threaded cover; 22. liquid outlet assembly; 2201. liquid outlet pipe; 2202. convex strip; 3. shaft seal cooler body; 4. bracket. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] The utility model provides a technical solution:

[0026] Embodiment 1

[0027] Combination Figures 1 to 4 A condensate recovery device for a condensing steam turbine body shaft seal cooler comprises a shaft seal cooler body 3, a bracket 4 is fixedly connected to the bottom of the shaft seal cooler body 3, a filtrate mechanism 1 is arranged on the left side of the shaft seal cooler body 3, and a closing mechanism 2 is arranged in the bottom of the filtrate mechanism 1.

[0028] The filtrate mechanism 1 includes a liquid passing component 11, a liquid separation component 12 and a filtrate component 13. The liquid passing component 11 is arranged on the left side of the shaft seal cooler body 3, the liquid separation component 12 is arranged at the top of the liquid passing component 11, and the filtrate component 13 is arranged in the liquid passing component 11 and below the liquid separation component 12.

[0029] The liquid passing component 11 includes a liquid passing pipe 1101, which is fixedly connected to the left side of the shaft seal cooler body 3, and a filtrate cylinder 1102 is fixedly connected to the bottom of the liquid passing pipe 1101. The liquid separation component 12 includes a sealing plate 1201, which is fixedly connected to the inner circle of the filtrate cylinder 1102, and a liquid separation ring 1202 is fixedly connected to the bottom of the sealing plate 1201. A spray pipe 1203 is fixedly connected to the bottom of the liquid separation ring 1202. The filtrate component 13 includes a grid plate 1301, which is fixedly connected to the inner circle of the filtrate cylinder 1102 and is located below the liquid separation ring 1202. A filter element 1302 is arranged below the grid plate 1301, and a liquid-repelling plate 1303 is arranged at the bottom of the filter element 1302. The outer circle of the filter element 1302 is in contact with the inner circle of the filtrate cylinder 1102, and the outer circle of the liquid-repelling plate 1303 is in contact with the inner circle of the filtrate cylinder 1102.

[0030] Furthermore: the filter element 1302 filters the condensed water generated by the shaft seal cooler body 3, so that there will be no impurities such as dust in the sinking condensed water, avoiding subsequent wear on the inside of the machine and increasing the service life of the turbine. The liquid separator ring 1202 and the spray pipe 1203 are evenly distributed at the top position of the filtrate cylinder 1102, so that the water can fall evenly in the filter element 1302, thereby improving the filtering effect of the condensed water. The liquid-repellent plate 1303 evacuates the water falling through the filter element 1302 to prevent water from being blocked and accumulated in the filtrate cylinder 1102.

[0031] Embodiment 2

[0032] See also Figure 1 and Figure 2 On the basis of the first embodiment, it is further obtained that the closing mechanism 2 includes a closing component 21 and a liquid outlet component 22, the closing component 21 is arranged at the bottom of the liquid passing component 11, and the liquid outlet component 22 is arranged at the bottom of the closing component 21.

[0033] The closing component 21 includes a threaded barrel 2101, which is fixedly connected to the bottom of the outer ring of the filtrate barrel 1102. The inner ring of the threaded barrel 2101 is threadedly connected with a threaded cover 2102. The top of the threaded cover 2102 fits with the bottom of the filtrate barrel 1102. The liquid outlet component 22 includes a liquid outlet pipe 2201, which is fixedly connected to the bottom of the threaded cover 2102. The outer ring of the liquid outlet pipe 2201 is fixedly connected with a convex strip 2202.

[0034] Furthermore: the staff only needs to rotate the liquid outlet pipe 2201 to drive the threaded cover 2102 to move upward on the inner circle of the threaded cylinder 2101 to complete the closing process of the filtrate cylinder 1102. The operation is simple and convenient for the staff to use. The setting of the convex strip 2202 increases the friction force generated when the staff applies force to the liquid outlet pipe 2201 to rotate, which is convenient for the staff to apply force.

[0035] During actual operation, when this device is used, the shaft seal cooler body 3 generates condensed water which enters the filtrate cylinder 1102 through the liquid pipe 1101. The condensed water entering the filtrate cylinder 1102 gathers at the top of the sealing plate 1201 and drips downward evenly through the liquid separator ring 1202 and the spray pipe 1203 to contact the filter element 1302. The dust and other impurities in the condensed water after being filtered by the filter element 1302 are intercepted by the filter element 1302, and the remaining clean water is dispersed downward through the liquid-repellent plate 1303 and then downward through the liquid outlet pipe 2201. At this time, the filtering of the condensed water is completed.

[0036] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the statement "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

Claims

1. A condensate recovery device for a condensing steam turbine body shaft seal cooler, comprising a shaft seal cooler body (3), Features: A bracket (4) is fixedly connected to the bottom of the shaft seal cooler body (3); a filtrate mechanism (1) is arranged on the left side of the shaft seal cooler body (3); and a closing mechanism (2) is arranged in the bottom of the filtrate mechanism (1); The filtrate mechanism (1) comprises a liquid-passing component (11), a liquid-separating component (12) and a filtrate component (13); the liquid-passing component (11) is arranged on the left side of the shaft seal cooler body (3); the liquid-separating component (12) is arranged at the top of the liquid-passing component (11); and the filtrate component (13) is arranged in the liquid-passing component (11) below the liquid-separating component (12); The closing mechanism (2) comprises a closing component (21) and a liquid outlet component (22); the closing component (21) is arranged at the bottom of the liquid passing component (11); and the liquid outlet component (22) is arranged at the bottom of the closing component (21).

2. A condensate recovery device for a condensing steam turbine body shaft seal cooler according to claim 1, Features: The liquid passing component (11) comprises a liquid passing pipe (1101), wherein the liquid passing pipe (1101) is fixedly connected to the left side of the shaft seal cooler body (3), and a filtrate cartridge (1102) is fixedly connected to the bottom of the liquid passing pipe (1101).

3. The condensate recovery device for the condensing steam turbine body shaft seal cooler according to claim 1, Features: The liquid separation component (12) comprises a sealing plate (1201), wherein the sealing plate (1201) is fixedly connected to the inner circle of the filtrate cylinder (1102), a liquid separation ring (1202) is fixedly connected to the bottom of the sealing plate (1201), and a spray pipe (1203) is fixedly connected to the bottom of the liquid separation ring (1202).

4. The condensate recovery device for the condensing steam turbine body shaft seal cooler according to claim 1, Features: The filtrate assembly (13) comprises a grid plate (1301), wherein the grid plate (1301) is fixedly connected to the inner circle of the filtrate cylinder (1102) and is located below the liquid separation ring (1202); a filter element (1302) is arranged below the grid plate (1301), and a liquid-repellent plate (1303) is arranged at the bottom of the filter element (1302).

5. A condensate recovery device for a condensing steam turbine body shaft seal cooler according to claim 4, Features: The outer ring of the filter element (1302) fits with the inner ring of the filtrate cartridge (1102), and the outer ring of the liquid-repellent plate (1303) fits with the inner ring of the filtrate cartridge (1102).

6. A condensate recovery device for a condensing steam turbine body shaft seal cooler according to claim 1, Features: The closing assembly (21) comprises a threaded barrel (2101), wherein the threaded barrel (2101) is fixedly connected to the bottom of the outer ring of the filtrate barrel (1102), and the inner ring of the threaded barrel (2101) is threadedly connected to a threaded cover (2102), and the top of the threaded cover (2102) fits with the bottom of the filtrate barrel (1102).

7. The condensate recovery device for the condensing steam turbine body shaft seal cooler according to claim 1, Features: The liquid outlet assembly (22) comprises a liquid outlet pipe (2201), wherein the liquid outlet pipe (2201) is fixedly connected to the bottom of the threaded cover (2102), and a convex strip (2202) is fixedly connected to the outer ring of the liquid outlet pipe (2201).

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