CN212430800U - Steam generating device for high-power photo-thermal power station - Google Patents
Steam generating device for high-power photo-thermal power station Download PDFInfo
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- CN212430800U CN212430800U CN202021318415.0U CN202021318415U CN212430800U CN 212430800 U CN212430800 U CN 212430800U CN 202021318415 U CN202021318415 U CN 202021318415U CN 212430800 U CN212430800 U CN 212430800U
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Abstract
A steam generating device for a high-power photo-thermal power station relates to the field of electric power and chemical engineering systems. The utility model provides a current high-power heat transfer power station adopt traditional cauldron formula reboiler, face the problem that the manufacturing degree of difficulty is big, with high costs and steam quality is low. The utility model discloses a steam pocket is along horizontal direction parallel arrangement in evaporimeter A and evaporimeter B top, and the one end of steam pocket is equipped with the feedwater import, the feedwater import is linked together with the water storage district of steam pocket, and the upper portion of steam pocket is equipped with a plurality of steam outlet along the axis direction of steam pocket, and the inside water storage district of steam pocket communicates with evaporimeter A and evaporimeter B upper portion respectively through a plurality of downcomer, and evaporimeter A and evaporimeter B bottom communicate with the inside catch water zone of steam pocket through a plurality of tedge respectively, and the steam outlet intercommunication that sets up on the gas vent of catch water zone and the steam pocket, the outlet and the inside water storage district of steam pocket intercommunication of catch water zone. The utility model is used for realize the soda natural circulation under the non-heated state of tedge.
Description
Technical Field
The utility model relates to an electric power and chemical industry system field, concretely relates to a steam generator for high-power light and heat power station.
Background
Energy and environmental problems are two important problems faced by the world at present, and in recent years, China has paid great attention to the development and utilization of new energy, wherein solar power generation is an effective way for relieving or even solving the energy problem, all countries in the world make active efforts, and solar thermal power generation is an important development direction for solar energy utilization in the solar energy development 'thirteen-five' plan formulated by the energy bureau in China. The photothermal power generation steam generation system is important heat exchange equipment, wherein a steam generation device is a main component equipment and is used for converting water in a nearly saturated state after being heated by a preheater into saturated steam through heat exchange, a kettle-type reboiler is mainly adopted by the device of a general low-power photothermal power station, and if the kettle-type reboiler is adopted by a high-power photothermal power station, the problems of high manufacturing difficulty, high cost, low steam quality and the like are faced.
In summary, the conventional kettle-type reboiler adopted in the conventional high-power heat exchange power station has the problems of high manufacturing difficulty, high cost and low steam quality.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving current high-power heat transfer power station and adopting traditional cauldron formula reboiler, face the problem that the manufacturing degree of difficulty is big, with high costs and steam quality is low, and then provide a steam generator for high-power light and heat power station.
The technical scheme of the utility model is that:
a steam generating device for a high-power photo-thermal power station comprises a steam pocket 1, an evaporator A5, an evaporator B9, a plurality of descending pipes 2 and a plurality of ascending pipes 3, wherein the evaporator A5 and the evaporator B9 are arranged in parallel along the horizontal direction, the steam pocket 1 is arranged above the evaporator A5 and the evaporator B9 in parallel along the horizontal direction, the upper parts of one ends of the evaporator A5 and the evaporator B9 are respectively provided with a pipe pass inlet 4, the lower parts of one ends of the evaporator A5 and the evaporator B9 are respectively provided with a pipe pass outlet 7, one end of the steam pocket 1 is provided with a water supply inlet 10, the water supply inlet 10 is communicated with a water storage area of the steam pocket 1, the upper part of the steam pocket 1 is provided with a plurality of steam outlets 11 along the axial direction of the steam pocket 1, the water storage area inside the steam pocket 1 is respectively communicated with the upper parts of the evaporator A5 and the evaporator B9 through the plurality of the descending pipes 2, the bottoms of the evaporator A5 and the evaporator B9 are respectively communicated with a steam-water separation area, the exhaust port of the steam-water separation area is communicated with a steam outlet 11 arranged on the steam drum 1, and the water outlet of the steam-water separation area is communicated with the water storage area inside the steam drum 1.
Further, the evaporator a5 communicates with the water storage region inside the drum 1 through four downcomers 2, and the evaporator B9 communicates with the water storage region inside the drum 1 through four downcomers 2.
Further, the bottom of the evaporator A5 is communicated with the steam-water separation region inside the steam drum 1 through four ascending pipes 3, and the bottom of the evaporator B9 is communicated with the steam-water separation region inside the steam drum 1 through four ascending pipes 3.
Further, the steam drum 1 is kept at a certain distance from the evaporators a5 and B9 in the vertical direction to maintain the natural circulation rate.
Further, the axis of the steam drum 1 in the horizontal direction is positioned in the middle of the axes of the evaporator A5 and the evaporator B9, and the three are kept parallel.
Furthermore, the steam-water separation area is a horizontal high-efficiency steam-water separation device.
Further, the evaporator comprises a plurality of evaporator supports 6 and a plurality of foundation supports 8, the plurality of foundation supports 8 are arranged under the evaporator A5 along the axis direction of the evaporator, the evaporator A5 is fixed on the foundation supports 8 through the plurality of evaporator supports 6, the plurality of foundation supports 8 are arranged under the evaporator B9 along the axis direction of the evaporator, and the evaporator B9 is fixed on the foundation supports 8 through the plurality of evaporator supports 6.
Further, three base supports 8 are provided just below the evaporator a5 in the axial direction thereof, and each base support 8 is connected to the evaporator a5 via two evaporator supports 6.
Further, three base supports 8 are provided immediately below the evaporator B9 in the axial direction thereof, and each base support 8 is connected to the evaporator B9 via two evaporator supports 6.
Compared with the prior art, the utility model has the following effect:
1. the steam generating device has the characteristics of relatively simple structure, easiness in manufacturing, lower cost and convenience in maintenance; 2. the utility model realizes the natural circulation of the steam and water under the non-heated state of the ascending pipe by optimizing the internal structure of the steam drum and reasonably arranging the ascending pipe and the descending pipe and other innovative technical means; 3. the natural circulation is adopted, so that the quality of the furnace water can be adjusted and ensured by utilizing continuous sewage discharge and periodic sewage discharge, the requirement on the quality of the feed water is wider, a working circulating water pump is not required to be used under the high-temperature condition, and the cost is reduced and the reliability is improved; 4. because an independent steam drum can be adopted, the water volume and the heat storage capacity are large, and the solar water heater is favorable for adapting to a use environment with relatively large fluctuation of a photo-thermal system; 5. an independent and efficient steam-water separation device is adopted in the steam drum, and the steam separation dryness reaches over 99.9% under the rated working condition.
Drawings
Fig. 1 is a front view of a steam generating device for a high power photothermal power station of the present invention;
FIG. 2 is a right side view of the steam generator for a high power photothermal power plant of the present invention;
fig. 3 is a plan view of the steam generator for a high power photothermal power station of the present invention.
Detailed Description
The first embodiment is as follows: the embodiment is described by combining fig. 1, the steam generating device for the high-power photothermal power station of the embodiment comprises a steam drum 1, an evaporator a5, an evaporator B9, a plurality of downcomers 2 and a plurality of risers 3, wherein the evaporator a5 and the evaporator B9 are arranged in parallel along the horizontal direction, the steam drum 1 is arranged above the evaporator a5 and the evaporator B9 in parallel along the horizontal direction, the upper parts of one ends of the evaporator a5 and the evaporator B9 are respectively provided with a tube pass inlet 4, the lower parts of one ends of the evaporator a5 and the evaporator B9 are respectively provided with a tube pass outlet 7, one end of the steam drum 1 is provided with a water supply inlet 10, the water supply inlet 10 is communicated with a water storage area of the steam drum 1, the upper part of the steam drum 1 is provided with a plurality of steam outlets 11 along the axial direction of the steam drum 1, the water storage area inside the steam drum 1 is respectively communicated with the upper parts of the evaporator a5 and the evaporator B9 through a plurality of the downcomers 2, and the bottom of the evaporator a5 and the evaporator B9 are respectively communicated with the upper parts of The areas are communicated, the exhaust port of the steam-water separation area is communicated with a steam outlet 11 arranged on the steam drum 1, and the water outlet of the steam-water separation area is communicated with the water storage area in the steam drum 1.
The second embodiment is as follows: referring to fig. 1, the evaporator a5 of the present embodiment is connected to the water storage area inside the steam drum 1 through four down pipes 2, and the evaporator B9 is connected to the water storage area inside the steam drum 1 through four down pipes 2. Other components and connections are the same as in the first embodiment.
The third concrete implementation mode: referring to fig. 1, the bottom of the evaporator a5 of the present embodiment is connected to the steam-water separation region inside the drum 1 through four rising tubes 3, and the bottom of the evaporator B9 is connected to the steam-water separation region inside the drum 1 through four rising tubes 3. Other compositions and connections are the same as in the first or second embodiments.
The fourth concrete implementation mode: referring to fig. 1, the steam drum 1 of the present embodiment is vertically spaced apart from the evaporator a5 and the evaporator B9. The natural circulation multiplying power is maintained. Other compositions and connection relationships are the same as in the first, second or third embodiment.
The fifth concrete implementation mode: referring to fig. 1, the present embodiment will be described, in which the axis of the horizontal steam drum 1 is located between the axes of the evaporator a5 and the evaporator B9, and the three are parallel to each other. By means of the arrangement, through the optimization of the internal structure of the steam drum 1, the optimization of the relative positions of the steam drum 1, the evaporator A5 and the evaporator B9 and the structural optimization of the descending pipe 2 and the ascending pipe 3, the density difference generated after the cold fluid is used for heating generates natural circulation, the natural circulation of steam and water on the water supply side of the ascending pipe 3 in an unheated state is realized, and the circulation multiplying factor can reach more than 6. Other compositions and connection relationships are the same as those in the first, second, third or fourth embodiment.
The sixth specific implementation mode: the present embodiment will be described with reference to fig. 1, and the steam-water separation region of the present embodiment is a horizontal high-efficiency steam-water separation device. By the arrangement, the steam-water mixture passes through the horizontal high-efficiency steam-water separation device arranged in the steam drum 1, so that the separation dryness of the generated steam reaches more than 99.9% under the rated working condition. Other compositions and connection relationships are the same as in the first, second, third, fourth or fifth embodiment.
The horizontal high-efficient catch water of this embodiment is prior art, and specific structure sees chinese utility model patent of patent No. 201921695634.8, and no longer gives details here.
The seventh embodiment: the present embodiment is described with reference to fig. 1, and further includes a plurality of evaporator supports 6 and a plurality of base supports 8, the plurality of base supports 8 are disposed under the evaporator a5 along the axial direction thereof, the evaporator a5 is fixed on the base supports 8 through the plurality of evaporator supports 6, the plurality of base supports 8 are disposed under the evaporator B9 along the axial direction thereof, and the evaporator B9 is fixed on the base supports 8 through the plurality of evaporator supports 6. So configured, the base support 8 serves as a support for the evaporator a5 and the evaporator B9. Other compositions and connection relationships are the same as in the first, second, third, fourth, fifth or sixth embodiment.
The specific implementation mode is eight: referring to fig. 1, the present embodiment is described, in which three base supports 8 are provided directly below the evaporator a5 in the axial direction thereof, and each base support 8 is connected to the evaporator a5 via two evaporator supports 6. Other compositions and connection relationships are the same as those of embodiment one, two, three, four, five, six or seven.
The specific implementation method nine: referring to fig. 1, the present embodiment is described, in which three base supports 8 are provided directly below the evaporator B9 in the axial direction thereof, and each base support 8 is connected to the evaporator B9 via two evaporator supports 6. Other compositions and connection relationships are the same as those in the first, second, third, fourth, fifth, sixth, seventh or eighth embodiment.
Principle of operation
The working principle of the present invention is explained with reference to fig. 1 to 3: the hot fluid, which can be specifically heat conducting oil, molten salt and the like, enters the heat exchanger through a tube side inlet 4 arranged on the evaporator A5 and the evaporator B9, is used for heating the feedwater cold fluid to generate saturated steam, and then flows out through a tube side outlet 7 arranged on the evaporator A5 and the evaporator B9. Cold fluid water enters a water storage area of the steam drum 1 through a water supply inlet 10 arranged on the steam drum 1, the water supply enters the bottoms of an evaporator A5 and an evaporator B9 through a downcomer 2, a steam-water mixture is generated after the water supply is heated by hot fluid of the evaporator, the density of the steam-water mixture is lower than that of the water supply, the steam-water mixture enters a steam-water separation area in the steam drum 1 along an ascending pipe 3 under the action of gravity, saturated steam flows out through a steam outlet 11 arranged on the steam drum 1 after the steam-water mixture passes through a high-efficiency steam-water separation device, and the saturated water flows back to the water storage area of the steam.
Claims (9)
1. A steam generating device for high-power photothermal power station, characterized in that: the steam-assisted boiler comprises a steam drum (1), an evaporator A (5), an evaporator B (9), a plurality of downcomers (2) and a plurality of upcomers (3), wherein the evaporator A (5) and the evaporator B (9) are arranged in parallel along the horizontal direction, the steam drum (1) is arranged above the evaporator A (5) and the evaporator B (9) in parallel along the horizontal direction, the upper parts of one ends of the evaporator A (5) and the evaporator B (9) are respectively provided with a tube pass inlet (4), the lower parts of one ends of the evaporator A (5) and the evaporator B (9) are respectively provided with a tube pass outlet (7), one end of the steam drum (1) is provided with a water supply inlet (10), the water supply inlet (10) is communicated with a water storage area of the steam drum (1), the upper part of the steam drum (1) is provided with a plurality of steam outlets (11) along the axial direction of the steam drum (1), the water storage area inside the steam drum (1) is respectively communicated with the evaporator A (5) and the upper part of the evaporator B (9) through the plurality of, the bottoms of the evaporator A (5) and the evaporator B (9) are respectively communicated with a steam-water separation area inside the steam drum (1) through a plurality of ascending pipes (3), an exhaust port of the steam-water separation area is communicated with a steam outlet (11) arranged on the steam drum (1), and a water outlet of the steam-water separation area is communicated with a water storage area inside the steam drum (1).
2. A steam generating plant for high power photothermal power plants according to claim 1 characterized in that: the evaporator A (5) is communicated with the water storage area inside the steam drum (1) through four descending pipes (2), and the evaporator B (9) is communicated with the water storage area inside the steam drum (1) through four descending pipes (2).
3. A steam generating plant for high power photothermal power plants according to claim 2 characterized in that: the bottom of the evaporator A (5) is communicated with a steam-water separation region inside the steam drum (1) through four ascending pipes (3), and the bottom of the evaporator B (9) is communicated with the steam-water separation region inside the steam drum (1) through the four ascending pipes (3).
4. A steam generating plant for high power photothermal power plants according to claim 3 characterized in that: the steam pocket (1) is kept a certain distance from the evaporator A (5) and the evaporator B (9) in the vertical direction so as to keep the natural circulation multiplying power.
5. A steam generating plant for high power photothermal power plants according to claim 4 characterized in that: the axis of the steam drum (1) in the horizontal direction is positioned between the axes of the evaporator A (5) and the evaporator B (9), and the three are kept parallel.
6. A steam generating plant for high power photothermal power plants according to claim 5 characterized in that: the steam-water separation area is a horizontal high-efficiency steam-water separation device.
7. A steam generating plant for high power photothermal power plants according to claim 6 characterized in that: it still includes a plurality of evaporimeter supports (6) and a plurality of basic support (8), be equipped with a plurality of basic supports (8) along its axis direction under evaporimeter A (5), evaporimeter A (5) are fixed on basic support (8) through a plurality of evaporimeter supports (6), be equipped with a plurality of basic supports (8) along its axis direction under evaporimeter B (9), evaporimeter B (9) are fixed on basic support (8) through a plurality of evaporimeter supports (6).
8. A steam generating plant for high power photothermal power plants according to claim 7 characterized in that: three basic supports (8) are arranged under the evaporator A (5) along the axis direction of the evaporator A, and each basic support (8) is connected with the evaporator A (5) through two evaporator supports (6).
9. A steam generating plant for high power photothermal power plants according to claim 8 characterized in that: three basic supports (8) are arranged right below the evaporator B (9) along the axis direction of the evaporator B, and each basic support (8) is connected with the evaporator B (9) through two evaporator supports (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021318415.0U CN212430800U (en) | 2020-07-07 | 2020-07-07 | Steam generating device for high-power photo-thermal power station |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021318415.0U CN212430800U (en) | 2020-07-07 | 2020-07-07 | Steam generating device for high-power photo-thermal power station |
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| Publication Number | Publication Date |
|---|---|
| CN212430800U true CN212430800U (en) | 2021-01-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021318415.0U Active CN212430800U (en) | 2020-07-07 | 2020-07-07 | Steam generating device for high-power photo-thermal power station |
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| CN (1) | CN212430800U (en) |
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- 2020-07-07 CN CN202021318415.0U patent/CN212430800U/en active Active
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