CN212227763U - Low-temperature waste heat power generation system suitable for blast furnace slag water of steel mill - Google Patents
Low-temperature waste heat power generation system suitable for blast furnace slag water of steel mill Download PDFInfo
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- CN212227763U CN212227763U CN202020935575.3U CN202020935575U CN212227763U CN 212227763 U CN212227763 U CN 212227763U CN 202020935575 U CN202020935575 U CN 202020935575U CN 212227763 U CN212227763 U CN 212227763U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model discloses a low-temperature waste heat power generation system suitable for blast furnace slag water in a steel mill, wherein a slag water storage tank is communicated with an evaporator through a slag water pipeline to form a slag water circulation loop; the evaporator, the turbine, the condenser and the water pump form a working medium liquid circulation loop through working medium liquid pipelines; the cooling tower and the condenser form a cooling water circulation loop through a cooling water pipeline; the turbine is in mechanical transmission connection with the generator. The evaporator comprises an evaporator shell, a working medium liquid heat exchange tube and a heat source heat exchange tube, wherein a plurality of filters for filtering out solid impurities in the heat source are sequentially arranged on the working medium liquid heat exchange tube along the heat source flow guide direction of the working medium liquid heat exchange tube, and each filter is provided with a dirt suction device for sucking out the filtered solid impurities in the filter. The utility model discloses can filter the solid impurity that the heat source contained at the heat transfer in-process, avoid causing the harm to the internals of evaporimeter, improve heat exchange efficiency and improve the generating efficiency.
Description
Technical Field
The utility model belongs to the technical field of low temperature waste heat power generation, especially, relate to a low temperature waste heat power generation system suitable for steel mill blast furnace slag water.
Background
Slag water contains solid impurities, and if the slag water is not treated, the impurities enter a low-temperature waste heat power generation system to damage the internal structure of an evaporator, so that the heat exchange efficiency is influenced. Based on the above reason, the utility model discloses an evaporimeter device for low temperature waste heat power generation system can filter the solid impurity that the heat source contained at the heat transfer in-process, avoids causing the harm to the internals of evaporimeter, improves heat exchange efficiency. In order to solve the problem, the utility model discloses a low temperature waste heat power generation system suitable for steel mill blast furnace slag water can filter the solid impurity that the slag water contained at the heat transfer in-process, avoids causing the harm to the internals of evaporimeter, improves heat exchange efficiency and improves the generating efficiency.
Disclosure of Invention
The purpose of the invention is as follows: in order to overcome the not enough of prior art existence, the utility model provides a low temperature waste heat power generation system suitable for steel mill blast furnace slag water can filter the solid impurity that the slag water contained at the heat transfer in-process, avoids causing the harm to the internals of evaporimeter, improves heat exchange efficiency and improves the generating efficiency.
The technical scheme is as follows: in order to achieve the purpose, the utility model discloses a low temperature waste heat power generation system suitable for steel mill blast furnace slag water, including slag water storage tank, slag water piping, evaporimeter, condenser, suction pump, turbine, cooling tower, generator, working medium liquid pipeline and cooling water piping; the slag water storage tank is communicated with the evaporator through a slag water pipeline to form a slag water circulation loop; the evaporator, the turbine, the condenser and the water pump form a working medium liquid circulation loop through working medium liquid pipelines; the cooling tower and the condenser form a cooling water circulation loop through a cooling water pipeline; the turbine is in mechanical transmission connection with the generator;
the evaporator comprises an evaporator shell, a working medium liquid heat exchange tube and a slag water heat exchange tube, wherein the working medium liquid heat exchange tube and the slag water heat exchange tube are arranged through the evaporator shell; the working medium liquid heat exchange tube is sequentially provided with a plurality of filters for filtering out solid impurities in the slag water along the slag water flow guide direction, and each filter is provided with a dirt suction device for sucking out the solid impurities filtered out in the filter.
Furthermore, the part of the working medium liquid heat exchange tube, which is positioned inside the evaporator shell, is in a horizontal straight-through shape, and the part of the slag water heat exchange tube, which is positioned inside the evaporator shell, is in a zigzag shape or a spiral shape.
Further, the filter is formed by densely distributing first filter holes on the surface of the shell, and the pore diameter of the first filter holes is gradually reduced in a plurality of filters along the slag water diversion direction;
the filter is characterized in that a filter plate with second filter holes densely distributed on the surface is arranged inside the filter, the filter plate covers the output end of the filter communicated with the working fluid heat exchange tube, and the aperture of the first filter hole is the same as that of the second filter hole in the same filter.
Further, the sewage suction device comprises a sewage suction pump and a sewage suction head which are butted through a sewage suction pipe; the electric valve is installed on the sewage suction pipe, the sewage suction pump is located outside the evaporator shell, and the sewage suction head is located inside the filter.
Further, the soil pick-up head includes that the soil pick-up that switches on is responsible for and switches on the soil pick-up branch pipe that is provided with the soil pick-up and is responsible for the bottom with the soil pick-up pipe.
Further, the filter is located above the working medium liquid heat exchange tube, a water pushing mechanism is arranged at the inner bottom of the evaporator shell, and the water pushing direction of the water pushing mechanism is vertical and upward.
Furthermore, the water pushing mechanism is composed of blades driven by a waterproof motor.
Furthermore, a first water inlet valve is installed at the input end of the working medium liquid heat exchange tube, and a first water outlet valve is installed at the output end of the working medium liquid heat exchange tube; and a second water inlet valve is installed at the input end of the slag water heat exchange tube, and a second water outlet valve is installed at the output end of the slag water heat exchange tube.
Further, the first water inlet valve and the second water inlet valve are both backflow-preventing one-way valves.
Has the advantages that: the utility model discloses a low temperature waste heat power generation system suitable for steel mill blast furnace slag water, beneficial effect as follows:
1) the utility model can filter solid impurities contained in the slag water in the heat exchange process, avoid damaging the internal components of the evaporator, and improve the heat exchange efficiency and the power generation efficiency;
2) the utility model can suck out the solid impurities in the filter through the dirt suction device, thereby avoiding the filter from being blocked;
3) the utility model discloses simple structure, the cost is lower, is suitable for the scale to promote.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic diagram of an evaporator;
fig. 3 is a schematic diagram of a part of the structure shown in fig. 2.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in the attached figure 1, the system comprises a slag water storage tank 10, a slag water pipeline 11, an evaporator 12, a condenser 13, a water pump 14, a turbine 15, a cooling tower 16, a generator 17, a working medium liquid pipeline 18 and a cooling water pipeline 19; the slag water storage tank 10 is communicated with the evaporator 12 through a slag water pipeline 11 to form a slag water circulation loop; the evaporator 12, the turbine 15, the condenser 13 and the water pump 14 form a working medium liquid circulation loop through a working medium liquid pipeline 18; the cooling tower 16 and the condenser 13 form a cooling water circulation loop through a cooling water pipeline 19; the turbine 15 is mechanically connected to a generator 17. Among them, the turbine is a machine that converts energy contained in a fluid medium into mechanical work, and is also called a turbine.
As shown in the attached figure 2, the low-temperature waste heat power generation system suitable for the blast furnace slag water in the steel mill is characterized in that an evaporator 12 comprises an evaporator shell 1, a working medium liquid heat exchange tube 2 and a slag water heat exchange tube 3, wherein the working medium liquid heat exchange tube 2 and the slag water heat exchange tube 3 are both arranged through the evaporator shell 1; the working medium liquid heat exchange tube 2 is sequentially provided with a plurality of filters 4 for filtering out solid impurities in slag water along the slag water diversion direction, and each filter 4 is provided with a sewage suction device 5 for sucking out the solid impurities filtered out from the filter 4 in a matched manner. The utility model can filter solid impurities contained in the slag water in the heat exchange process, avoid damaging the internal components of the evaporator 11, and improve the heat exchange efficiency and the power generation efficiency; in addition, the solid impurities in the filter 4 can be sucked out through the dirt suction device 5, and the filter 4 is prevented from being blocked.
More specifically, the part of the working medium liquid heat exchange tube 2, which is positioned inside the evaporator shell 1, is in a horizontal straight-through shape, and the part of the slag water heat exchange tube 3, which is positioned inside the evaporator shell 1, is in a zigzag shape or a spiral shape, so that the heat exchange efficiency is further improved.
As shown in fig. 3, the filter 4 is formed by densely distributing first filter holes 40 on the surface of the shell, and the pore diameter of the first filter holes 40 is gradually reduced in the plurality of filters 4 along the slag water diversion direction; the filter 4 is internally provided with a filter plate 6 with a surface densely covered with second filter holes 60, the filter plate 6 covers the output end of the filter 4 communicated with the working fluid heat exchange tube 2, and in the same filter 4, the aperture of the first filter hole 40 is the same as that of the second filter hole 60. The filter 4 can realize multistage filtration from large to small according to the size of solid impurities, and the filtration is more thorough and efficient.
As shown in fig. 3, the sewage suction device 5 includes a sewage suction pump 51 and a sewage suction head 53 which are butted by a sewage suction pipe 52; an electric valve 54 is installed on the sewage suction pipe 52, the sewage suction pump 51 is positioned outside the evaporator shell 1, and the sewage suction head 53 is positioned inside the filter 4. The sewage suction head 53 includes a main sewage suction pipe 531 communicated with the sewage suction pipe 52, and a branch sewage suction pipe 532 communicated with the bottom of the main sewage suction pipe 531. The sewage suction device 5 has simple structure and convenient use.
The filter 4 is located above the working medium liquid heat exchange tube 2, and it is worth noting that the bottom in the evaporator shell 1 is provided with the water pushing mechanism 50, the water pushing direction of the water pushing mechanism 50 is vertical upward, the fluidity of the slag water is improved, and the heat exchange efficiency can be further improved.
Preferably, the water pushing mechanism 50 is a paddle driven by a waterproof motor.
The input end of the working medium liquid heat exchange tube 2 is provided with a first water inlet valve 2a, and the output end of the working medium liquid heat exchange tube 2 is provided with a first water outlet valve 2 b; the input end of the slag water heat exchange tube 3 is provided with a second water inlet valve 3a, and the output end of the slag water heat exchange tube 3 is provided with a second water outlet valve 3 b. The first water inlet valve 2a and the second water inlet valve 3a are both anti-backflow one-way valves, so that slag water and working medium liquid are prevented from flowing back.
The above description is only a preferred embodiment of the present invention, and it should be noted that: for those skilled in the art, without departing from the principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be considered as the protection scope of the present invention.
Claims (9)
1. The utility model provides a low temperature waste heat power generation system suitable for steel mill blast furnace slag water which characterized in that: the system comprises a slag water storage tank (10), a slag water pipeline (11), an evaporator (12), a condenser (13), a water pump (14), a turbine (15), a cooling tower (16), a generator (17), a working medium liquid pipeline (18) and a cooling water pipeline (19); the slag water storage tank (10) is communicated with the evaporator (12) through a slag water pipeline (11) to form a slag water circulation loop; the evaporator (12), the turbine (15), the condenser (13) and the water pump (14) form a working medium liquid circulation loop through a working medium liquid pipeline (18); the cooling tower (16) and the condenser (13) form a cooling water circulation loop through a cooling water pipeline (19); the turbine (15) is in mechanical transmission connection with the generator (17);
the evaporator (12) comprises an evaporator shell (1), a working medium liquid heat exchange tube (2) and a slag water heat exchange tube (3), wherein the working medium liquid heat exchange tube (2) and the slag water heat exchange tube (3) penetrate through the evaporator shell (1); the working medium liquid heat exchange tube (2) is sequentially provided with a plurality of filters (4) used for filtering out solid impurities in slag water along the slag water diversion direction, and each filter (4) is provided with a sewage suction device (5) used for sucking out the solid impurities filtered out in the filter (4) in a matched manner.
2. The low-temperature waste heat power generation system suitable for the blast furnace slag water of the steel mill according to claim 1, characterized in that: the part of the working medium liquid heat exchange tube (2) positioned inside the evaporator shell (1) is in a horizontal straight-through shape, and the part of the slag water heat exchange tube (3) positioned inside the evaporator shell (1) is in a broken line shape or a spiral shape.
3. The low-temperature waste heat power generation system suitable for the blast furnace slag water of the steel mill according to claim 1, characterized in that: the filter (4) is formed by densely distributing first filter holes (40) on the surface of the shell, and the pore diameter of the first filter holes (40) is gradually reduced in the plurality of filters (4) along the slag water diversion direction;
the filter is characterized in that a filter plate (6) with second filter holes (60) densely distributed on the surface is arranged in the filter (4), the filter plate (6) covers the output end of the filter (4) communicated with the working fluid heat exchange tube (2), and in the same filter (4), the aperture of the first filter hole (40) is the same as that of the second filter hole (60).
4. The low-temperature waste heat power generation system suitable for the blast furnace slag water of the steel mill according to claim 3, characterized in that: the sewage suction device (5) comprises a sewage suction pump (51) and a sewage suction head (53) which are butted through a sewage suction pipe (52); an electric valve (54) is installed on the sewage suction pipe (52), the sewage suction pump (51) is located outside the evaporator shell (1), and the sewage suction head (53) is located inside the filter (4).
5. The low-temperature waste heat power generation system suitable for the blast furnace slag water of the steel mill according to claim 4, characterized in that: the sewage suction head (53) comprises a sewage suction main pipe (531) communicated with the sewage suction pipe (52) and a sewage suction branch pipe (532) communicated with the bottom of the sewage suction main pipe (531).
6. The low-temperature waste heat power generation system suitable for the blast furnace slag water of the steel mill according to claim 1, characterized in that: the filter (4) is positioned above the working medium liquid heat exchange tube (2), the bottom in the evaporator shell (1) is provided with a water pushing mechanism (50), and the water pushing direction of the water pushing mechanism (50) is vertical upwards.
7. The low-temperature waste heat power generation system suitable for the blast furnace slag water of the steel mill according to claim 6, characterized in that: the water pushing mechanism (50) is composed of blades driven by a waterproof motor.
8. The low-temperature waste heat power generation system suitable for the blast furnace slag water of the steel mill according to claim 1, characterized in that: the input end of the working medium liquid heat exchange tube (2) is provided with a first water inlet valve (2a), and the output end of the working medium liquid heat exchange tube (2) is provided with a first water outlet valve (2 b); and a second water inlet valve (3a) is installed at the input end of the slag water heat exchange tube (3), and a second water outlet valve (3b) is installed at the output end of the slag water heat exchange tube (3).
9. The low-temperature waste heat power generation system suitable for the blast furnace slag water of the steel mill according to claim 8, characterized in that: the first water inlet valve (2a) and the second water inlet valve (3a) are both anti-backflow one-way valves.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020935575.3U CN212227763U (en) | 2020-05-28 | 2020-05-28 | Low-temperature waste heat power generation system suitable for blast furnace slag water of steel mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020935575.3U CN212227763U (en) | 2020-05-28 | 2020-05-28 | Low-temperature waste heat power generation system suitable for blast furnace slag water of steel mill |
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| Publication Number | Publication Date |
|---|---|
| CN212227763U true CN212227763U (en) | 2020-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020935575.3U Active CN212227763U (en) | 2020-05-28 | 2020-05-28 | Low-temperature waste heat power generation system suitable for blast furnace slag water of steel mill |
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| Country | Link |
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| CN (1) | CN212227763U (en) |
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- 2020-05-28 CN CN202020935575.3U patent/CN212227763U/en active Active
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Address after: Room 601, 602, 603, Building A5-1, Qidi Science and Technology City Liye Park, No. 26, Zhizhi Road, Jiangning District, Nanjing, Jiangsu, 210000 Patentee after: Nanjing Hongxu Thermal Energy Technology Co.,Ltd. Address before: 123 Xingyuan Road, Changjing Town, Jiangyin, Wuxi, Jiangsu Province Patentee before: Jiangyin Hong Xu environmental protection electric technology Co.,Ltd. |
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