CN213335620U - Cooling circulation system of thermal power plant - Google Patents
Cooling circulation system of thermal power plant Download PDFInfo
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- CN213335620U CN213335620U CN202022281584.8U CN202022281584U CN213335620U CN 213335620 U CN213335620 U CN 213335620U CN 202022281584 U CN202022281584 U CN 202022281584U CN 213335620 U CN213335620 U CN 213335620U
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Abstract
The utility model discloses a cooling circulation system of a thermal power plant, which comprises a cooling tower, a water tank, a water inlet pipe, a water outlet pipe, a water inlet pipe, a water outlet pipe and a water outlet pipe, wherein the cooling tower is used for providing; first manger plate layer includes the flat pipeline of a plurality of arcs, the pipeline radial cross-section of the flat pipeline of arcs is the arc, and the convex arc face of pipeline upwards sets up and evenly is provided with a plurality of ventholes on the convex arc face, pipeline axial both ends and cooling tower outside air intercommunication, a plurality of arc flat pipeline stagger the range each other in upper and lower direction, and a plurality of arc flat pipeline leave the space each other, the flat pipeline of a plurality of arcs is made by the heat conduction material. The utility model discloses a set up the first manger plate layer that has the cooling between water distribution system and fan, improve the efficiency of collecting steam, reduce the cooling water loss and the fan harm.
Description
Technical Field
The utility model relates to a thermal power plant is with cooling circulation system of open cooling tower.
Background
In a thermal power plant, a cooling water circulation system is a common and important production matching system, a boiler in the power plant heats water into high-temperature and high-pressure steam, a steam turbine is pushed to do work to enable a generator to generate electricity, waste steam after the steam turbine does work is discharged into a condenser, the waste steam is subjected to heat exchange with cooling water to be condensed into water, and the water is pumped back to the boiler by a water pump to be recycled. In the process, waste heat of the dead steam is transferred to cooling water, so that the temperature of the cooling water is increased, the cooling water carrying the waste heat transfers heat to air in the cooling tower, the air is discharged into the atmospheric environment from the air duct, the cooling water cooled by the cooling tower drops to the bottom of the tower, and then the cooling water is recycled and is injected into a condenser of the turbonator again for continuous circulation. The principle of the cooling tower is that heat exchange is carried out to generate steam after water and air are in flowing contact, the steam volatilizes and takes away heat, and the purpose of evaporation heat dissipation is achieved, so that the cooling water is cooled by the cooling tower after being heated by a unit heat exchanger of the turbonator, and the circulation process can be continued. However, the existing cooling circulation system has the following defects in the practical application process:
1. in order to increase the heat dissipation efficiency of the cooling tower, the cooling fan is arranged at the top of the cooling tower to increase airflow, the airflow of the cooling tower moves from the lower part to the upper part, a large amount of steam generated by heat exchange can be brought into the air outside the cooling tower, a conventional water baffle in the cooling tower and the steam in the cooling tower are in the same environment, the efficiency of collecting the steam is poor, and cooling water loss is caused.
2. The conventional water baffle in the cooling tower has poor steam collecting efficiency, and a large amount of steam flows out from the top of the tower and can cause damage to a fan at the top of the cooling tower.
SUMMERY OF THE UTILITY MODEL
It is an object of the present invention to solve at least the above problems and to provide at least the advantages which will be described later.
The utility model discloses it is still another purpose to provide a cooling cycle system of thermal power plant, and it improves the efficiency of collecting steam through set up first manger plate layer and the second manger plate layer that has the cooling between water distribution system and fan, reduces cooling water loss and fan harm.
In order to achieve these objects and other advantages in accordance with the present invention, a cooling circulation system for a thermal power plant is provided, which includes a cooling tower for supplying cooling water to a unit heat exchanger and cooling the cooling water carrying waste heat after the cooling tower is used, an air inlet is provided at a lower portion of the cooling tower, a water distribution system communicating with a cooling water outlet of the unit heat exchanger is provided at an upper portion of the cooling tower, a heat sink is provided between the water distribution system and the air inlet, the water distribution system is used for spraying the cooling water carrying waste heat after the unit heat exchanger is used onto the heat sink for dispersion and heat dissipation, a fan for sucking air inside the cooling tower is provided at a top of the cooling tower, and a cold water outlet; the cooling tower also comprises a first water retaining layer which is arranged between the fan and the water distribution system; first manger plate layer includes the flat pipeline of a plurality of arcs, the pipeline radial cross-section of the flat pipeline of arcs is the arc, and the convex arc face of pipeline upwards sets up and evenly is provided with a plurality of ventholes on the convex arc face, pipeline axial both ends and cooling tower outside air intercommunication, a plurality of arc flat pipeline stagger the range each other in upper and lower direction, and a plurality of arc flat pipeline leave the space each other, the flat pipeline of a plurality of arcs is made by the heat conduction material.
Preferably, the cooling tower further comprises a second water retaining layer which is arranged between the fan and the water distribution system and is close to the upper side of the first water retaining layer, the second water retaining layer comprises a plurality of inclined downward plate bodies which are arranged, gaps are reserved among the plurality of plate bodies, and the plate bodies are made of heat conduction materials.
Preferably, the plate body comprises a first plate body and a second plate body, one end of the first plate body is connected with one end of the second plate body, the included angle between the first plate body and the second plate body is 30-120 degrees, and the included angle directions of the arrangement of the plurality of plate bodies are the same.
Preferably, the air outlet hole is provided with a convex edge upwards.
Preferably, the aperture of the air outlet is 0.2-0.5cm, and the distance between the air outlets is 1.5-3 cm.
Preferably, the fins are honeycomb fins.
Preferably, still including the cold water collecting pit that is used for collecting the cooling water that cooling tower bottom cold water outlet flows out, the upper end of cold water collecting pit and the cold water outlet intercommunication of cooling tower bottom, the lower extreme of cold water collecting pit is through first water supply pipe and unit heat exchanger intercommunication, is provided with the water pump for unit heat exchanger pump cooling water on the first water supply pipe, and unit heat exchanger passes through the second water supply pipe and feeds through with water distribution system in order to carry the cooling water income water distribution system of used heat behind the unit heat exchanger use for spray dispersion and heat dissipation on the fin.
Preferably, the air inlet and the two ends of the arc-shaped flat pipeline are provided with detachable filters, and the detachable filters are arranged between the water pump and the unit heat exchanger.
The utility model discloses at least, include following beneficial effect:
the utility model discloses a set up the first manger plate layer of a plurality of arc flat pipeline mutual staggered arrangement of orientation from top to bottom between fan and water distribution system, the protruding cambered surface of pipeline upwards sets up and evenly is provided with a plurality of ventholes on the protruding cambered surface, pipeline axial both ends and cooling tower outside air intercommunication, in order to realize cooling down to first manger plate layer at the inside air of fan suction cooling tower, make the inside first manger plate layer of the steam contact lower temperature that upwards flows of cooling tower, help steam liquefaction become liquid and concentrate on first manger plate layer, and the cambered surface along the arc flat pipeline drips downwards, improve the efficiency of collecting steam, reduce cooling water loss and fan harm.
Two, the utility model discloses a top that just is close to first manger plate layer between fan and water distribution system sets up the second manger plate layer, makes the steam that rises to the second manger plate layer further liquefy into liquid and concentrate on the second manger plate layer, and the collection of drippage downwards further improves the efficiency of collecting steam, reduces cooling water loss and fan harm.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
Fig. 1 is a schematic structural diagram of an implementation form of the present invention;
fig. 2 is an enlarged side view of the first water retaining layer a in fig. 1.
Wherein the cooling tower 10; a fan 11; a first plate body 12; a second plate body 13; an arc-shaped flat pipe 14; a water distribution system 15; a heat sink 16; an air inlet 17; a cold water outlet 18; an air outlet 19; a cold water collection tank 20; a water pump 21; a first water supply pipe 22; a unit heat exchanger 30; a second water supply pipe 31; a first water retaining layer A; and a second water retaining layer B.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
It will be understood that terms such as "having," "including," and "comprising," as used herein, do not preclude the presence or addition of one or more other elements or groups thereof.
In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected" and "disposed" are to be construed broadly, and may for example be fixedly connected, disposed, detachably connected, disposed, or integrally connected and disposed. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. The terms "lateral," "longitudinal," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the invention and to simplify the description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
Fig. 1-2 show an implementation of a cooling cycle system of a thermal power plant, in which dashed arrows indicate the flow direction of cooling water and solid arrows indicate the flow direction of air. The cooling circulation system of the thermal power plant comprises a cooling tower 10 used for providing cooling water for a unit heat exchanger 30 and cooling the cooling water which is used and carries waste heat, an air inlet 17 is arranged at the lower part of the cooling tower 10, a water distribution system 15 communicated with a cooling water outlet of the unit heat exchanger 30 is arranged at the upper part of the cooling tower 10, a radiating fin 16 is arranged between the water distribution system 15 and the air inlet 17, the water distribution system 15 is used for spraying the cooling water which is used and carries the waste heat by the unit heat exchanger 30 onto the radiating fin 16 for dispersion and heat dissipation, a fan 11 used for sucking the air in the cooling tower 10 is arranged at the top of the cooling tower 10, and a cold water outlet 18; the cooling tower 10 further comprises a first water retaining layer a, which is arranged between the fan 11 and the water distribution system 15; first manger plate layer A includes a plurality of arc flat pipeline 14, the pipeline radial cross-section of arc flat pipeline 14 is the arc, and the convex arc face of pipeline upwards sets up and evenly is provided with a plurality of ventholes 19 on the convex arc face, pipeline axial both ends and cooling tower 10 outside air intercommunication, a plurality of arc flat pipeline 14 stagger the range each other in upper and lower direction, and a plurality of arc flat pipeline 14 leave the space each other, a plurality of arc flat pipeline 14 are made by the heat conduction material.
The utility model discloses a theory of operation does: the water distribution system 15 continuously sprays cooling water carrying waste heat into the cooling tower 10, the fan 11 operates to suck external air into the cooling tower 10 from an air inlet 17 at the lower part of the cooling tower 10, so that the cooling water is in flowing contact with the air and then performs heat exchange to generate steam, the steam volatilizes to take away heat, and the volatilized steam flows upwards under the suction action of the fan 11. Simultaneously, fan 11 suction cooling tower 10 inside air makes outside air flow into in the flat pipeline 14 of arc from the both ends of the flat pipeline 14 of arc in order to the flat pipeline 14 of arc cooling, realize the cooling to first manger plate layer A, make the inside steam contact first manger plate layer A of lower temperature that upwards flows of cooling tower 10, help the steam liquefaction become liquid and concentrate on first manger plate layer A, and the cambered surface along the flat pipeline 14 of arc drips downwards, improve the efficiency of collecting steam, reduce cooling water loss and fan 11 harm.
On the basis of the above implementation form, the cooling tower 10 further includes a second water retaining layer B, which is disposed between the fan 11 and the water distribution system 15 and is close to the top of the first water retaining layer a, the second water retaining layer B includes a plurality of plate bodies inclined downward, a gap is left between the plurality of plate bodies, and the plate bodies are made of a heat conductive material.
The utility model discloses a theory of operation does: when the fan 11 sucks air in the cooling tower 10 to enable outside air to flow into the arc-shaped flat pipeline 14 from two ends of the arc-shaped flat pipeline 14 so as to cool the arc-shaped flat pipeline 14, air sprayed into the cooling tower 10 from the air outlet 19 of the arc-shaped flat pipeline 14 plays a role in cooling the second water retaining layer B above the air outlet, air flowing out of the air outlet 19 is lower in temperature than steam in the cooling tower 10, cold and hot air contacts with the second water retaining layer B at a lower temperature, and the steam rising to the second water retaining layer B is further liquefied into liquid and concentrated on the second water retaining layer B and drips downwards for collection, so that the efficiency of collecting the steam is improved, and the loss of cooling water and the damage of the fan 11 are reduced.
On the basis of the above implementation form, the plate body comprises a first plate body 12 and a second plate body 13, one end of the first plate body 12 is connected with one end of the second plate body 13, the included angle between the first plate body 12 and the second plate body 13 is 30-120 degrees, and the included angle directions of the arrangement of the plurality of plate bodies are the same.
On the basis of the above implementation form, the air outlet 19 is provided with a convex edge upwards.
On the basis of the above implementation form, the aperture of the air outlet 19 is 0.2-0.5cm, and the distance between the air outlets 19 is 1.5-3 cm.
In addition to the above implementation, the fins 16 are honeycomb fins 16.
On the basis of the above implementation form, the cooling water collection device further comprises a cold water collection tank 20 for collecting cooling water flowing out from a cold water outlet 18 at the bottom of the cooling tower 10, the upper end of the cold water collection tank 20 is communicated with the cold water outlet 18 at the bottom of the cooling tower 10, the lower end of the cold water collection tank 20 is communicated with the unit heat exchanger 30 through a first water supply pipe 22, a water pump 21 for pumping cooling water to the unit heat exchanger 30 is arranged on the first water supply pipe 22, the unit heat exchanger 30 is communicated with the water distribution system 15 through a second water supply pipe 31 so as to enable the cooling water carrying waste heat after being used by the unit heat exchanger 30 to flow into the water distribution system 15 for being sprayed onto the cooling fins 16 to disperse.
On the basis of the above implementation, the air inlet 17 and both ends of the arc-shaped flat pipe 14 are provided with detachable filters, and the detachable filters are arranged between the water pump 21 and the unit heat exchanger 30.
The number of apparatuses and the scale of the process described here are intended to simplify the description of the present invention. Applications, modifications and variations of the present invention will be apparent to those skilled in the art.
While the embodiments of the invention have been described above, it is not intended to be limited to the details shown, or described, but rather to cover all modifications, which would come within the scope of the appended claims, and all changes which come within the meaning and range of equivalency of the art are therefore intended to be embraced therein.
Claims (8)
1. The cooling circulation system of the thermal power plant comprises a cooling tower, an air inlet is formed in the lower portion of the cooling tower, a water distribution system communicated with a cooling water outlet of the unit heat exchanger is arranged on the upper portion of the cooling tower, cooling fins are arranged between the water distribution system and the air inlet, the water distribution system is used for spraying cooling water, which is used by the unit heat exchanger and carries waste heat, onto the cooling fins for dispersing and radiating, a fan used for sucking air in the cooling tower is arranged at the top of the cooling tower, and a cold water outlet is formed in the bottom of the cooling tower; the cooling tower is characterized by further comprising a first water retaining layer, wherein the first water retaining layer is arranged between the fan and the water distribution system; first manger plate layer includes the flat pipeline of a plurality of arcs, the pipeline radial cross-section of the flat pipeline of arcs is the arc, and the convex arc face of pipeline upwards sets up and evenly is provided with a plurality of ventholes on the convex arc face, pipeline axial both ends and cooling tower outside air intercommunication, a plurality of arc flat pipeline stagger the range each other in upper and lower direction, and a plurality of arc flat pipeline leave the space each other, the flat pipeline of a plurality of arcs is made by the heat conduction material.
2. The thermal power plant cooling cycle system of claim 1, wherein the cooling tower further comprises a second water retaining layer disposed between the fan and the water distribution system and above and adjacent to the first water retaining layer, the second water retaining layer comprising an arrangement of a plurality of obliquely downward plate bodies with gaps left therebetween, the plate bodies being made of a thermally conductive material.
3. The heat-engine plant cooling circulation system of claim 2, wherein the plate bodies comprise a first plate body and a second plate body, one end of the first plate body is connected with one end of the second plate body, the included angle between the first plate body and the second plate body is 30-120 degrees, and the included angles of the plurality of plate bodies are arranged in the same direction.
4. A cooling cycle system for a thermal power plant according to any one of claims 1 to 3, wherein said air outlet hole is provided with a convex edge upward.
5. The heat-engine plant cooling circulation system of claim 4, wherein the aperture of the air outlet holes is 0.2-0.5cm, and the distance between the air outlet holes is 1.5-3 cm.
6. The thermal power plant cooling cycle system of claim 5, wherein the fins are honeycomb fins.
7. The cooling circulation system of a thermal power plant as claimed in claim 6, further comprising a cold water collecting tank for collecting cooling water flowing from a cold water outlet at the bottom of the cooling tower, wherein the upper end of the cold water collecting tank is communicated with the cold water outlet at the bottom of the cooling tower, the lower end of the cold water collecting tank is communicated with the unit heat exchanger through a first water supply pipeline, a water pump for pumping cooling water to the unit heat exchanger is arranged on the first water supply pipeline, and the unit heat exchanger is communicated with the water distribution system through a second water supply pipeline so as to enable the cooling water carrying waste heat after being used by the unit heat exchanger to flow into the water distribution system for being sprayed on the radiating fins for dispersion and heat dissipation.
8. The thermal power plant cooling cycle system of claim 7, wherein the air inlet and both ends of the curved flat tube are provided with removable filters, and wherein a removable filter is provided between the water pump and the unit heat exchanger.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022281584.8U CN213335620U (en) | 2020-10-14 | 2020-10-14 | Cooling circulation system of thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022281584.8U CN213335620U (en) | 2020-10-14 | 2020-10-14 | Cooling circulation system of thermal power plant |
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| Publication Number | Publication Date |
|---|---|
| CN213335620U true CN213335620U (en) | 2021-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022281584.8U Active CN213335620U (en) | 2020-10-14 | 2020-10-14 | Cooling circulation system of thermal power plant |
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| CN (1) | CN213335620U (en) |
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- 2020-10-14 CN CN202022281584.8U patent/CN213335620U/en active Active
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