CN218093174U - Blast furnace slag flushing water waste heat power generation condensate water temperature raising device - Google Patents
Blast furnace slag flushing water waste heat power generation condensate water temperature raising device Download PDFInfo
- Publication number
- CN218093174U CN218093174U CN202221672979.3U CN202221672979U CN218093174U CN 218093174 U CN218093174 U CN 218093174U CN 202221672979 U CN202221672979 U CN 202221672979U CN 218093174 U CN218093174 U CN 218093174U
- Authority
- CN
- China
- Prior art keywords
- temperature
- water
- heat exchanger
- blast furnace
- low
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Abstract
The utility model relates to the field of waste heat recovery of blast furnace slag flushing water, and discloses a condensate water temperature raising device for power generation by the waste heat of the blast furnace slag flushing water, which comprises a steam turbine condensate water circulating system, wherein the steam turbine condensate water circulating system comprises a condenser and a low-pressure heater, and the condenser is connected with the low-pressure heater through a pipeline; the blast furnace slag flushing and temperature raising system comprises a blast furnace, a vortex tube plate type heat exchanger and a secondary heat exchanger, wherein the blast furnace is connected with the vortex tube plate type heat exchanger through a pipeline, the secondary heat exchanger is provided with a low-temperature tube and a high-temperature tube, the low-temperature tube is connected in parallel with a pipeline between the condenser and the low-pressure heater, the high-temperature tube is connected with the secondary heat exchanger and the vortex tube plate type heat exchanger, after the blast furnace slag flushing is completed, high-temperature slag flushing water is subjected to waste heat recovery and utilization through the vortex tube plate type heat exchanger and the secondary heat exchanger, the temperature of condensate water is raised, the condensate water enters the heater to be heated after being raised, the work load of the heater can be greatly reduced, the electric energy consumption of the heater is effectively reduced, the circulating efficiency of the condensate water is improved, and the operation cost of the system is effectively controlled.
Description
Technical Field
The utility model relates to a blast furnace slag flushing water waste heat recovery field, concretely relates to temperature raising device for blast furnace slag flushing water waste heat power generation condensate water.
Background
In the power generation flow of the steel mill in the prior art, water is boiled into superheated steam by a boiler to drive a steam turbine, a steam turbine device drives a generator to generate power, the superheated steam drives the steam turbine and then becomes exhaust steam, the exhaust steam is condensed into water through a condenser device, the temperature is about 30-35 ℃, the water is supplemented through a softening water tank of a system, the water enters a low-pressure heater and is heated to 104 ℃, high-temperature water at 104 ℃ is subjected to thermal deoxygenation, then the water enters a high-pressure heater and is heated, the water is supplemented through the boiler after the water is heated, and the whole power generation steam-water circulation process is completed.
In the power generation process, in order to save energy consumption, exhaust steam discharged from a steam turbine can be condensed by a condenser and reheated to be supplied to a boiler for cyclic utilization, the temperature of the exhaust steam condensed by the condenser is 30-35 ℃, the temperature of the exhaust steam is required to be raised by a heater and then is led into the boiler, in the prior art, the temperature raising process of the condensed water before entering the boiler is mostly realized by the heater, the process needs to raise the temperature of the condensed water from 30-35 ℃ to 104 ℃, the temperature difference reaches 69-74 ℃, the heat required for the whole temperature raising process is large, the electric energy consumed by the heater is large, the whole heating and temperature raising process of the heater needs to circularly heat the condensed water for a certain time, the energy consumption of the whole system is increased, the circulating efficiency of the condensed water is delayed, and the operating cost of the system is increased.
Disclosure of Invention
In order to solve one or more technical problem among the prior art, or provide a profitable selection at least, the utility model provides a device is raised temperature to blast furnace slag flushing water waste heat power generation comdenstion water has solved the comdenstion water and has consumed the too big, the high problem of running cost of electric energy when raising the temperature through low pressure feed water heater.
The utility model discloses a blast furnace slag flushing water waste heat power generation comdenstion water temperature raising device, a serial communication port, include: the steam turbine condensed water circulating system comprises a boiler, a steam turbine, a condenser, a low-pressure heater and a high-pressure heater, wherein a steam outlet of the boiler is connected with the steam turbine, the steam turbine is provided with an exhaust port, the exhaust port is connected with the condenser through a pipeline, the condenser is connected with the low-pressure heater through a pipeline, the low-pressure heater is connected with the high-pressure heater through a pipeline, and the high-pressure heater is connected with a water inlet of the boiler through a pipeline; the blast furnace slag flushing and temperature raising system comprises a blast furnace, a vortex tube plate type heat exchanger and a secondary heat exchanger, wherein the secondary heat exchanger is provided with a low-temperature tube and a high-temperature tube, the low-temperature tube is connected in parallel with a pipeline between the condenser and the low-pressure heater, and the high-temperature tube is connected with the secondary heat exchanger and the vortex tube plate type heat exchanger.
In the technical scheme of this application, blast furnace towards sediment carries temperature system including vortex tube sheet heat exchanger and secondary heat exchanger, the blast furnace is through tube coupling vortex tube sheet heat exchanger, vortex tube sheet heat exchanger is through tube coupling secondary heat exchanger, after the blast furnace towards sediment technology is accomplished, high temperature towards the sediment water gets into vortex tube sheet heat exchanger through the pipeline, get into the secondary heat exchanger through the high temperature tube, carry out waste heat recovery and utilize to the blast furnace towards the sediment water through the secondary heat exchanger, among the prior art, the comdenstion water gets into low pressure feed ware through the condenser and carries out the temperature, the big consumption of the temperature difference is many, this scheme sets up blast furnace towards sediment and carries temperature system, utilize towards the sediment water waste heat and carry out the comdenstion water through the secondary heat exchanger and carry out the temperature, get into low pressure feed ware heating after the comdenstion water carries out the temperature, can greatly reduce the work burden of heater, effectively reduce the power consumption of heater, improve the circulation efficiency of comdenstion water, effective control system running cost.
In an implementation mode of the condensed water temperature raising device for the power generation by the waste heat of the blast furnace slag flushing water, a first flow control valve is arranged on a pipeline between a condenser and a low-pressure heater, and a second flow control valve is arranged on a low-temperature pipe which is connected in parallel with the pipeline between the condenser and the low-pressure heater.
The flow of the condensed water flowing to the low-pressure heater is changed through the first flow control valve, and meanwhile, the on-off of a pipeline between the condenser and the low-pressure heater can be controlled; the second flow control valve controls the flow of water between the secondary heat exchanger and the low-pressure heater and also controls the on-off of water flow between the secondary heat exchanger and the condensate water circulating system of the steam turbine, when the temperature of condensate water passing through the condenser is higher, blast furnace slag flushing water is not needed to be used for raising the temperature, and when the second flow control valve is in a closed state, the secondary heat exchanger does not participate in condensate water circulation.
In an implementation mode of the device for raising the temperature of the condensed water generated by the waste heat of the blast furnace slag flushing water, a third flow control valve is arranged on a pipeline connecting the secondary heat exchanger and the vortex tube plate type heat exchanger.
And the third flow control valve controls the connection and disconnection of pipelines between the secondary heat exchanger and the vortex tube plate type heat exchanger, the blast furnace slag flushing water enters the temperature raising device, and the waste heat of the blast furnace slag flushing water is used for raising the temperature of the condensed water through the secondary heat exchanger.
In an implementation mode of the condensed water temperature raising device for the power generation by the waste heat of the blast furnace slag flushing water, a first temperature measuring and controlling instrument is arranged at the end, close to the condenser, of a pipeline between the condenser and the low-pressure heater, and a second temperature measuring and controlling instrument is arranged on a low-temperature pipe, connected in parallel with the pipeline between the condenser and the low-pressure heater, of the pipeline.
The first temperature measuring and controlling instrument measures the temperature of the condensed water flowing out of the condenser, when the temperature of the condensed water is lower, the temperature of the condensed water is raised by using blast furnace slag flushing water through the temperature raising device, the heated condensed water enters the low-pressure heater, and when the temperature of the condensed water flowing out of the condenser is higher, the second flow control valve can be closed without raising the temperature of the condensed water; the second temperature measuring and controlling instrument measures and controls the temperature of the low-temperature pipe and monitors the temperature raising effect in real time.
In an implementation mode of the condensed water temperature raising device for power generation by waste heat of blast furnace slag flushing water, a third temperature measurement and control instrument is arranged on a pipeline between the secondary heat exchanger and the vortex tube plate type heat exchanger.
The third temperature measurement and control instrument measures and controls the temperature of the blast furnace slag flushing water, and on the other hand, the value of the third temperature measurement and control instrument is compared with the value of the second temperature measurement and control instrument to detect the waste heat recovery effect of the temperature raising device.
In an implementation mode of the device for raising the temperature of the condensed water generated by the waste heat of the blast furnace slag flushing water, a fourth temperature measuring and controlling instrument is arranged on a pipeline between the condenser and the low-pressure heater, close to the low-pressure heater.
The fourth temperature measurement and control instrument measures and controls the temperature of the condensed water after being asked by the temperature raising device before the condensed water enters the low-pressure heater, on one hand, the temperature of the condensed water before the condensed water enters the low-pressure heater is determined, on the other hand, the temperature value is compared with the temperature value of the first temperature measurement and control instrument, and the temperature raising effect of the temperature raising device is detected.
In an implementation mode of the condensed water temperature raising device for the power generation by the waste heat of the blast furnace slag flushing water, a low-temperature pipe is connected with a vortex tube plate type heat exchanger through a pipeline, a fourth flow control valve is arranged on a connecting pipeline between the low-temperature pipe and the vortex tube plate type heat exchanger, and the temperature of the blast furnace slag flushing water after temperature raising is reduced and enters the vortex tube plate type heat exchanger through the low-temperature pipe.
The blast furnace slag flushing water is subjected to temperature reduction after waste heat is recycled by the temperature raising device, and enters the slag flushing process through a pipeline for cyclic utilization.
In an implementation mode of the device for increasing the temperature of the power generation condensed water by the waste heat of the blast furnace slag flushing water, a water supplementing tank is arranged in a steam turbine condensed water circulating system, and the water supplementing tank is provided with a fifth flow control valve.
The exhaust steam forms condensate water through the condenser, the flow of the condensate water is small and insufficient to supply water for a boiler, a water replenishing tank is arranged to supply water for the whole steam turbine condensate water circulation process, the water replenishing tank is connected to a connecting pipeline between the condenser and the low-pressure heater through a pipeline, a low-temperature pipe of the secondary heat exchanger is connected to the pipeline between the condenser and the low-pressure heater in parallel, and when the temperature raising device works, the temperature raising effect is achieved on water flow supplied by the water replenishing tank.
In an implementation mode of the condensed water temperature raising device for the power generation by the waste heat of the blast furnace slag flushing water, a slag pool is arranged in a blast furnace slag flushing temperature raising system, a serial pipeline is arranged between a vortex tube plate type heat exchanger and the slag pool, and a slag flushing water booster pump is arranged on the serial pipeline.
The slag flushing water booster pump is arranged through the serial pipeline to pump out the slag flushing water in a boosting mode, the slag flushing water enters the temperature raising device, the temperature of the slag flushing water after temperature raising is reduced, the slag flushing water returns to the blast furnace through the serial pipeline to flush slag, and the slag enters the slag water tank again after the slag flushing is finished.
In an implementation mode of the condensed water temperature raising device for the power generation by the waste heat of the blast furnace slag flushing water, a bottom filter tank and a cold water tower are arranged in a blast furnace slag flushing temperature raising system, a cold water pool is arranged below the cold water tower, and a rotary valve is arranged at the position of a parallel pipeline.
The slag flushing water after waste heat recovery and utilization enters the slag flushing process again through pipeline recovery, the cold water tower and the cold water pool are connected in parallel with the vortex tube plate heat exchanger through pipelines, the on-off of the pipelines is controlled by using a rotary valve, and water returns to the cold water tower or the cold water pool.
The beneficial effects of the utility model are that:
1. the temperature that the required temperature that reaches after the comdenstion water temperature that flows out and getting into the heater heating in the condenser has very big difference in temperature, sets up the blast furnace towards the sediment and carries the temperature system, utilizes towards the sediment water waste heat and carries the temperature with the comdenstion water through the second grade heat exchanger, and the comdenstion water gets into the heater heating after carrying the temperature, can greatly reduce the work burden of heater, effectively reduces the power consumption of heater, improves the circulation efficiency of comdenstion water, effective control system running cost.
2. The low-temperature pipe vortex tube plate type heat exchangers are connected through a pipeline, the temperature of the blast furnace slag flushing water after temperature raising is reduced, the blast furnace slag flushing water enters the vortex tube plate type heat exchangers through the low-temperature pipe and enters a slag flushing process, the blast furnace slag flushing water is recycled, and resources are saved.
3. The first temperature measuring and controlling instrument is arranged on the pipeline between the condenser and the low-pressure heater and close to the condenser end, the second flow control valve is arranged on the low-temperature pipe connected in parallel with the pipeline between the condenser and the low-pressure heater, if the temperature of condensed water flowing out of the condenser is monitored to be high by the first temperature measuring and controlling instrument, the temperature of the condensed water does not need to be raised by blast furnace slag flushing water, the second flow control valve can be closed, when the second flow control valve is in a closed state, the secondary heat exchanger does not participate in condensed water circulation, the temperature can be raised by simple operation under special conditions, and the operation cost of the system is reduced.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and do not constitute a limitation on the invention. In the drawings:
fig. 1 is a schematic structural view of a condensed water temperature raising device according to an embodiment of the present invention.
Fig. 2 is a partially enlarged view of fig. 1.
Fig. 3 is a schematic structural view of a blast furnace slag flushing and temperature raising system according to an embodiment of the present invention.
Description of reference numerals:
1-blast furnace slag flushing and temperature raising system;
11-blast furnace, 12-vortex tube plate heat exchanger, 13-secondary heat exchanger, 14-slag water tank, 15-bottom filter tank, 16-cooling water tower, 17-cooling water tank;
121-slag flushing water booster pump, 122-rotary valve, 131-low temperature pipe, 132-high temperature pipe;
2-a steam turbine condensate water circulating system;
21-boiler, 22-turbine, 23-condenser, 24-low pressure heater, 25-high pressure heater, 26-water replenishing tank, 27-generator, 28-cooling tower and 29-thermal deaerator;
001-a first flow control valve, 002-a second flow control valve, 003-a third flow control valve, 004-a fourth flow control valve, 005-a fifth flow control valve, 006-a first temperature measuring and controlling instrument, 007-a second temperature measuring and controlling instrument, 008-a third temperature measuring and controlling instrument and 009-a fourth temperature measuring and controlling instrument.
Detailed Description
In order to more clearly explain the overall concept of the present invention, the following detailed description is given by way of example in conjunction with the accompanying drawings.
In order that the above objects, features and advantages of the present application can be more clearly understood, the present application will be described in further detail below with reference to the accompanying drawings and detailed description. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.
It should be noted that in the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the scope of the present invention is not limited by the specific embodiments disclosed below.
In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
In the present invention, unless otherwise explicitly stated or limited, the terms "mounted," "connected," "fixed," and the like are to be construed broadly, e.g., as being permanently connected, detachably connected, or integral; either directly or indirectly through intervening media, either internally or in any other relationship. However, the direct connection means that the two bodies are not connected through a transition structure, but connected through a connection structure to form a whole. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. In the description of the specification, reference to the description of "one embodiment," "some embodiments," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
First, the technical concept of the present invention will be explained. Aiming at the existing steam turbine condensed water circulating system, a turbine device drives a generator to generate electricity, superheated steam drives a steam turbine to be changed into exhaust steam, the exhaust steam is condensed into water through a condenser device, the temperature is about 30-35 ℃, the exhaust steam enters a low-pressure heater to be heated to 104 ℃ after being supplemented with water through a softening water tank of the system, the temperature difference can reach 69-74 ℃, and the required heat is large. The invention is provided with a blast furnace slag flushing and temperature raising system and a temperature raising device, wherein blast furnace slag flushing water enters the temperature raising device, waste heat of the slag flushing water is used for raising the temperature of condensed water through a secondary heat exchanger, the temperature difference is shortened, the cleanness and no pollution of the condensed water are ensured, then the temperature is raised through a low-pressure heater, and the slag flushing water after being raised in temperature is cooled and enters a slag flushing process. The waste heat of the blast furnace slag flushing water is recycled by utilizing the temperature raising device, and a large amount of energy is saved by utilizing the waste heat of the blast furnace slag flushing water.
In one embodiment, the blast furnace slag flushing and temperature raising system 1 is provided with a blast furnace 11, a vortex tube plate type heat exchanger 12 and a secondary heat exchanger 13, wherein the blast furnace 11 is connected with the vortex tube plate type heat exchanger 12 through a pipeline, a connecting pipeline is provided with a slag flushing water booster pump 121, slag flushing water is pumped into the vortex tube plate type heat exchanger 12 through pressurization of the slag flushing water booster pump 121, the secondary heat exchanger 13 is provided with a high-temperature pipe 132, the vortex tube plate type heat exchanger 12 is connected with the high-temperature pipe 132 through a pipeline, the connecting pipeline is provided with a third temperature measuring and controlling instrument 008, the temperature of water discharged from the vortex tube plate type heat exchanger 12 is monitored, and the slag flushing water enters the secondary heat exchanger 13 through the pipeline; a third flow control valve 003 is arranged on a connecting pipeline between the vortex tube plate type heat exchanger 12 and the high-temperature tube 132, and the third flow control valve 003 controls the flow of the slag flushing water entering the secondary heat exchanger 13; the steam turbine condensed water circulating system 2 comprises a condenser 23, a low-pressure heater 24, a high-pressure heater 25 and a boiler 21, condensed water enters the low-pressure heater 24 through a pipeline between the condenser 23 and the low-pressure heater 24, a first flow control valve 001 is arranged on the pipeline between the condenser 23 and the low-pressure heater 24 and used for controlling the flow rate of the water and the on-off of the pipeline, a low-temperature pipe 131 is arranged on a secondary heat exchanger 13, the low-temperature pipe 131 is connected in parallel with the pipeline between the condenser 23 and the low-pressure heater 24 and provided with a second flow control valve 002 used for controlling the on-off of the parallel pipeline, when the slag flushing and temperature raising system of the blast furnace 11 works, slag flushing water enters the secondary heat exchanger 13, the second flow control valve 002 is opened, the low-temperature pipe 131 is communicated with the condenser 23 and the low-pressure heater 24, the condensed water coming out of the condenser 23 is raised by using the waste heat of the slag flushing water, the raised temperature of the low-pressure heater 24 is reduced in heat consumption, the low-pressure heater 24 is communicated with the high-pressure heater 25 through a pipeline, a thermal power heater 29 is arranged between the low-pressure heater 24 and the high-pressure heater 21, the high-pressure heater is connected with the high-pressure boiler 21 through a high-temperature water inlet, and a high-temperature water-removing-heating pipeline, and oxygen-removing boiler 21 is connected with the high-temperature boiler 21.
In one embodiment, the steam turbine condensate circulating system 2 includes a boiler 21 and a steam turbine 22, the steam turbine 22 is connected to the boiler 21 through a pipeline, superheated steam discharged from the boiler 21 enters the steam turbine 22 through a pipeline, a generator 27 is disposed at the steam turbine 22, the steam turbine 22 drives the generator 27 to generate electricity, the superheated steam drives the steam turbine 22 to become exhaust steam, the steam turbine 22 is provided with an exhaust port, the exhaust port is connected to a condenser 23 through a pipeline, the exhaust steam is discharged from the exhaust port and enters the condenser 23 through a pipeline, the condenser 23 is provided with a cooling tower 28 to help the exhaust steam to be condensed into water, the steam turbine condensate circulating system 2 is further provided with a water replenishing tank 26, the water replenishing tank 26 is provided with a connecting pipeline, the connecting pipeline is provided with a fifth flow control valve 005, the connecting pipeline of the water replenishing tank 26 is connected to the pipeline between the condenser 23 and the low pressure heater 24, the condenser 23 is provided with a first temperature monitor 006, the temperature of the condensate flowing out of the condenser 23 is monitored, and when the condensate enters the low pressure heater 24 from the condenser 23, the flow of condensed water cannot meet the requirement of the boiler 21, the water replenishing tank 26 replenishes water before the condensed water enters the low-pressure heater 24, the condensed water and the replenished water in the water replenishing tank 26 enter the secondary heat exchanger 13 before entering the low-pressure heater 24, the secondary heat exchanger 13 utilizes the waste heat of slag flushing water to carry out temperature raising, the secondary heat exchanger 13 is provided with a low-temperature pipe 131, the low-temperature pipe 131 is connected in parallel on a pipeline between the secondary heat exchanger 13 and the condenser 23 as well as between the low-pressure heater 24 and is provided with a second temperature measuring and controlling instrument 007 which monitors the temperature change of the low-temperature pipe 131, the condensed water enters the low-pressure heater 24 through the pipeline after being raised in temperature, the low-pressure heater 24 is provided with a fourth temperature measuring and controlling instrument 009, the effect of the temperature raising device can be known by comparing the values of the first temperature measuring and controlling instrument 006 and the second temperature measuring and controlling instrument.
In one embodiment, the blast furnace slag flushing and temperature raising system 1 is provided with a slag water pool 14, a blast furnace 11, a vortex tube plate type heat exchanger 12 and a secondary heat exchanger 13, wherein the vortex tube plate type heat exchanger 12 is connected with the slag water pool 14 and the blast furnace 11 in series through pipelines, the vortex tube plate type heat exchanger 12 is good in heat transfer efficiency and high in operation stability, so that slag flushing water enters the secondary heat exchanger 13 with a longer conveying distance and heat loss of the slag flushing water is reduced, a slag flushing water booster pump 121 is arranged between the vortex tube plate type heat exchanger 12 and the slag water pool 14, and the slag flushing water booster pump 121 in the slag water pool 14 enters the vortex tube plate type heat exchanger 12. In this embodiment, the slag flushing water booster pump 121 adopts a parallel connection mode to pump water, on one hand, the water supply amount is increased, and on the other hand, when the slag flushing water booster pump 121 is damaged, other slag flushing water booster pumps 121 can also continue to work, so that the reliability of the booster pump water is ensured. The slag flushing water completes waste heat utilization at the secondary heat exchanger 13 to increase the temperature of condensed water, the temperature of the slag flushing water is reduced after temperature increase, the cooled slag flushing water returns water through a pipeline between the low-temperature pipe 131 and the vortex tube plate type heat exchanger 12, a fourth flow control valve 004 is arranged on a connecting pipeline between the low-temperature pipe 131 and the vortex tube plate type heat exchanger 12, the fourth flow control valve 004 is opened, and the slag flushing water after temperature increase is returned water through a serial pipeline to perform a slag flushing process again, so that resources are saved.
In another embodiment, the blast furnace slag flushing and temperature raising system 1 is provided with a bottom filter 15, a cold water tower 16 and a cold water pool 17, the cold water tower 16 and the cold water pool 17 are connected with the vortex tube plate heat exchanger 12 through parallel pipelines, rotary valves 122 are arranged at the parallel pipelines to control the on-off of the pipelines between the cold water tower 16 and the vortex tube plate heat exchanger 12 and between the cold water pool 17 and the vortex tube plate heat exchanger 12 respectively, a low-temperature tube 131 is arranged on the secondary heat exchanger 13, a connecting pipeline is arranged between the low-temperature tube 131 and the vortex tube plate heat exchanger 12, after the slag flushing water is raised in temperature, water returns through the pipeline between the low-temperature tube 131 and the vortex tube plate heat exchanger 12, and when the rotary valves 122 rotate to communicate the pipelines between the cold water tower 16 and the vortex tube plate heat exchanger 12, water returns to the cold water tower 16; when the rotary valve 122 rotates to communicate the pipeline between the cold water pool 17 and the scroll tube plate heat exchanger 12, water returns to the cold water pool 17.
The technical solution protected by the present invention is not limited to the above embodiments, and it should be noted that the technical solution of any one embodiment is combined with the technical solution of one or more other embodiments in the protection scope of the present invention. Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of this invention without departing from the spirit thereof.
Claims (10)
1. The utility model provides a blast furnace slag flushing water waste heat power generation comdenstion water device of raising temperature which characterized in that includes:
the steam turbine condensed water circulating system comprises a boiler, a steam turbine, a condenser, a low-pressure heater and a high-pressure heater, wherein a steam outlet of the boiler is connected with the steam turbine, the steam turbine is provided with an exhaust port, the exhaust port is connected with the condenser through a pipeline, the condenser is connected with the low-pressure heater through a pipeline, the low-pressure heater is connected with the high-pressure heater through a pipeline, and the high-pressure heater is connected with a water inlet of the boiler through a pipeline;
the blast furnace slag flushing and temperature raising system comprises a blast furnace, a vortex tube plate type heat exchanger and a secondary heat exchanger, wherein the blast furnace is connected with the vortex tube plate type heat exchanger through a pipeline, the secondary heat exchanger is provided with a low-temperature tube and a high-temperature tube, the low-temperature tube is connected in parallel with a pipeline between a condenser and a low-pressure heater, and the high-temperature tube is connected with the secondary heat exchanger and the vortex tube plate type heat exchanger.
2. The device for increasing the temperature of the condensed water generated by the waste heat of the blast furnace slag flushing water according to claim 1, wherein a first flow control valve is arranged on a pipeline between the condenser and the low-pressure heater, and a second flow control valve is arranged on a low-temperature pipe which is connected in parallel with the pipeline between the condenser and the low-pressure heater.
3. The device for raising the temperature of the condensed water generated by the waste heat of the blast furnace slag flushing water according to claim 1, wherein a third flow control valve is arranged on a pipeline connecting the secondary heat exchanger and the tube plate heat exchanger.
4. The device for increasing the temperature of the condensed water generated by the waste heat of the blast furnace slag flushing water according to claim 2, wherein a first temperature measuring and controlling instrument is arranged at the end, close to the condenser, of the pipeline between the condenser and the low-pressure heater, and a second temperature measuring and controlling instrument is arranged on the low-temperature pipe, connected in parallel with the pipeline between the condenser and the low-pressure heater.
5. The device for raising the temperature of the condensed water generated by the waste heat of the blast furnace slag flushing water according to claim 3, wherein the secondary heat exchanger and the tube plate heat exchanger are provided with a third temperature measuring and controlling instrument.
6. The device for raising the temperature of the condensed water generated by the power generation of the waste heat of the blast furnace slag flushing water according to claim 1, wherein a fourth temperature measuring and controlling instrument is arranged at the end, close to the low-pressure heater, of a pipeline between the condenser and the low-pressure heater.
7. The device for raising the temperature of the power generation condensed water by the waste heat of the blast furnace slag washing water as claimed in claim 1, wherein the low-temperature pipe is connected with the plate type heat exchanger through a pipeline, a fourth flow control valve is arranged on a connecting pipeline between the low-temperature pipe and the plate type heat exchanger, and the temperature of the blast furnace slag washing water after being raised is reduced and enters the plate type heat exchanger through the low-temperature pipe.
8. The device for increasing the temperature of the condensed water generated by the waste heat of the blast furnace slag flushing water according to claim 1, wherein the condensed water circulating system of the steam turbine is provided with a water supplementing tank, the water supplementing tank is connected to a connecting pipeline between the condenser and the low-pressure heater through a pipeline, and the water supplementing tank is provided with a fifth flow control valve.
9. The blast furnace slag flushing water waste heat power generation condensed water temperature raising device of claim 1, wherein the blast furnace slag flushing temperature raising system is provided with a slag water pool, a serial pipeline is arranged between the vortex tube plate heat exchanger and the slag water pool, and the serial pipeline is provided with a slag flushing water booster pump.
10. The device for raising the temperature of the condensed water generated by the waste heat of the blast furnace slag flushing water according to claim 1, wherein the system for raising the temperature of the blast furnace slag flushing water is provided with a bottom filter tank and a cold water tower, a cold water pool is arranged below the cold water tower, the cold water pool and the vortex tube plate heat exchanger are connected in parallel through pipelines, and rotary valves are arranged at the parallel pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221672979.3U CN218093174U (en) | 2022-06-30 | 2022-06-30 | Blast furnace slag flushing water waste heat power generation condensate water temperature raising device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221672979.3U CN218093174U (en) | 2022-06-30 | 2022-06-30 | Blast furnace slag flushing water waste heat power generation condensate water temperature raising device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218093174U true CN218093174U (en) | 2022-12-20 |
Family
ID=84478381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221672979.3U Active CN218093174U (en) | 2022-06-30 | 2022-06-30 | Blast furnace slag flushing water waste heat power generation condensate water temperature raising device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218093174U (en) |
-
2022
- 2022-06-30 CN CN202221672979.3U patent/CN218093174U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101886804B (en) | All-backheating drainage system of heat supply network heater for supercritical concurrent boiler thermal power plant | |
| CN108317591B (en) | A kind of system preparing hot water using combined heat pump recycling waste water residual heat | |
| CN112856363B (en) | System and method for improving heat supply steam parameters of deep peak shaving heat supply unit | |
| CN106523053A (en) | Solar heat and thermal power plant coupling power generation and heat storage energy combination system and realization method | |
| CN101191699B (en) | Cement residual heat-recovering system and method | |
| CN206037003U (en) | Secondary reheating unit EC BEST steam turbine steam exhaust heating deoxidization boiler feed water's thermodynamic system | |
| CN110160027A (en) | A kind of in-tube evaporation fused salt or conduction oil steam generating system and method without outer power drive | |
| CN209605253U (en) | 300MW and ratings above wet type cooling unit high back pressure and heat pump united heating system | |
| CN218093174U (en) | Blast furnace slag flushing water waste heat power generation condensate water temperature raising device | |
| CN201748408U (en) | Supercritical heat supply network heater full-backheating drain water system in concurrent boiler thermal power plant | |
| CN109751652A (en) | 300MW and ratings above wet type cooling unit high back pressure and heat pump united heating system | |
| CN207064022U (en) | One kind becomes back pressure thermoelectricity connect product machine set system | |
| CN109026220A (en) | A kind of hot energy storage cogeneration system of thermoelectricity decoupling type | |
| CN210532424U (en) | Low-temperature waste heat utilization system | |
| CN211273584U (en) | Low-temperature recovery evaporator system for sulfuric acid production | |
| CN209621560U (en) | A kind of residual heat of air compressor recycling supplying hot water circulating water saving system | |
| CN209431389U (en) | A kind of waste incineration and generating electricity heat energy recycling system of air compressor | |
| CN106382620A (en) | Low-pressure water supply system for steam extraction and backheating of power station unit | |
| CN106705020A (en) | Self-heat-absorption type heat exchanger combination | |
| CN209293865U (en) | A kind of hot energy storage cogeneration system of thermoelectricity decoupling type | |
| CN208858422U (en) | Thermal generation unit heat storage type assists peak regulation heating system | |
| CN220206089U (en) | Solar energy and gravity heat pipe combined power generation system | |
| CN207279603U (en) | A kind of central hot water heating heat recovery system applied in euphausia superba | |
| CN205955783U (en) | Draw gas low -pressure system of heating boiler feedwater of power station steam turbine | |
| CN206386911U (en) | A kind of chemical water heating system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |