CN223724981U - Steam turbine water jet ejector temperature control device - Google Patents
Steam turbine water jet ejector temperature control deviceInfo
- Publication number
- CN223724981U CN223724981U CN202520495562.1U CN202520495562U CN223724981U CN 223724981 U CN223724981 U CN 223724981U CN 202520495562 U CN202520495562 U CN 202520495562U CN 223724981 U CN223724981 U CN 223724981U
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- pipe
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Abstract
本实用新型公开了一种汽轮机射水式抽气器调温装置，涉及锅炉技术领域，主要目的是稳定控制汽轮机射水式抽气器的射水水温。本实用新型的主要技术方案为：汽轮机射水式抽气器调温装置，包括：射水部包括射水箱、射水泵和抽气器，射水泵的进口连接于射水箱的下端侧，射水泵的出口通过输水管连接于抽气器的喷嘴，抽气器的出口连接于射水箱的上端；补水管连接于射水箱的顶壁，多个第一折流板和多个第二折流板交错排列于射水箱的上部空间，第一折流板的上端固定连接于射水箱的顶壁，第二折流板的下端低于第一折流板的下端，溢流管连接于射水箱侧壁的第一位置，第一位置高于第二折流板的下端，低于第一折流板的下端。
This utility model discloses a temperature control device for a steam turbine water jet ejector, relating to the field of boiler technology. Its main purpose is to stably control the water jet temperature of the steam turbine water jet ejector. The main technical solution of this utility model is as follows: a steam turbine water jet ejector temperature control device, comprising: a water jet section including a water jet tank, a water jet pump, and an ejector; the inlet of the water jet pump is connected to the lower end of the water jet tank; the outlet of the water jet pump is connected to the nozzle of the ejector via a water supply pipe; the outlet of the ejector is connected to the upper end of the water jet tank; a water supply pipe is connected to the top wall of the water jet tank; multiple first baffles and multiple second baffles are arranged alternately in the upper space of the water jet tank; the upper end of the first baffle is fixedly connected to the top wall of the water jet tank; the lower end of the second baffle is lower than the lower end of the first baffle; an overflow pipe is connected to a first position on the side wall of the water jet tank, the first position being higher than the lower end of the second baffle and lower than the lower end of the first baffle.
Description
Technical Field
The utility model relates to the technical field of boilers, in particular to a temperature adjusting device of a water jet type air extractor of a steam turbine.
Background
The global attention to energy consumption and environmental protection is increasing, and the waste heat power generation technology of the calciner of the carbon enterprise has become one of the important directions of development in the industry due to the excellent energy saving and emission reduction effects. The waste heat of the high-temperature or medium-temperature flue gas discharged by the carbon pot-type calciner is used for producing medium-temperature medium-pressure or low-temperature low-pressure steam by adding a waste heat boiler, and the steam turbine is driven to rotate, so that a generator is driven to generate electricity, and the electricity is transmitted to a factory total depressurization transformer station and then is reused for factory production. A carbon plant with 30 ten thousand tons/year energy is usually equipped with a small turbo generator set with 4-8 mw.
But in the operation process of the waste heat boiler, steam is condensed into water, gas which is not dissolved in water is continuously accumulated in the upper space of the condenser, so that the vacuum degree and the working efficiency of the condenser are affected, wherein the water jet air extractor is special equipment for sucking the vacuum of the condenser of the turbine unit, the turbine water jet air extractor uses high-speed water flow to generate vacuum, steam and insoluble gas mixture in the condenser are effectively extracted, the normal operation and the efficiency of the condenser are ensured, the water jet water temperature is a key factor affecting the working efficiency of the turbine water jet air extractor, and the existing equipment cannot well control the water jet water temperature, so that the working efficiency of the air extractor is affected.
Disclosure of utility model
In view of the above, the present utility model provides a temperature adjusting device for a water jet type air extractor of a steam turbine, which is mainly used for stably controlling the water temperature of the water jet type air extractor of the steam turbine.
In order to achieve the above purpose, the present utility model mainly provides the following technical solutions:
The utility model provides a temperature adjusting device of a steam turbine water injection type air extractor, which comprises a water injection part and a water supplementing part;
The water injection part comprises a water injection tank, a water injection pump and an air extractor, wherein an inlet of the water injection pump is connected to the lower end side of the water injection tank, an outlet of the water injection pump is connected to a nozzle of the air extractor through a water pipe, and an outlet of the air extractor is connected to the upper end of the water injection tank;
the water supplementing part comprises a water supplementing pipe, an overflow pipe, a plurality of first baffle plates and a plurality of second baffle plates, wherein the water supplementing pipe is connected to the top wall of the water jet tank, the plurality of first baffle plates and the plurality of second baffle plates are alternately arranged in the upper space of the water jet tank, the upper end of the first baffle plates is fixedly connected to the top wall of the water jet tank, the lower end of the second baffle plates is lower than the lower end of the first baffle plates, the overflow pipe is connected to the first position of the side wall of the water jet tank, the first position is higher than the lower end of the second baffle plates and lower than the lower end of the first baffle plates, and the water supplementing pipe is used for stabilizing the liquid level of the water jet tank between the lower end of the first baffle plates and the lower end of the second baffle plates so as to form a gas phase baffle space on the upper part of the water jet tank;
The water supplementing pipe is provided with a control valve, the water conveying pipe is provided with a temperature sensor, and the temperature sensor and the control valve are integrated in a DCS control system.
The aim and the technical problems of the utility model can be further realized by adopting the following technical measures.
Optionally, the outlet of the air extractor and the overflow pipe are located at the distal end of the water jet tank top wall.
Optionally, the shower head structure further comprises a plurality of shower heads, the shower heads are sequentially arranged on the top wall of the water injection tank, and the water supplementing pipes are respectively connected with the shower heads.
Optionally, the device further comprises a separation plate, wherein the separation plate is arranged between the gas phase baffling space and the first position, and the lower end of the separation plate is lower than the lower end of the second baffling plate.
Optionally, the heat dissipation device further comprises a fin radiator, wherein the fin radiator comprises an S-shaped pipe and a heat dissipation fin group, the S-shaped pipe is embedded in the heat dissipation fin group, and the S-shaped pipe is communicated with the water delivery pipe.
Optionally, the fin radiator further comprises an axial flow fan, the axial flow fan and the radiating fin group are arranged oppositely, and the temperature sensor and the axial flow fan are integrated in the DCS control system.
Optionally, the device further comprises a pressure release valve, wherein the pressure release valve is arranged on the top wall of the water injection tank, and the outlet of the air extractor and the pressure release valve are respectively positioned at two ends of the gas phase baffling space.
Optionally, the water tank further comprises a communicating pipe and a water storage tank, wherein one end of the communicating pipe is connected to a second position of the side wall of the water injection tank, the other end of the communicating pipe is connected to the top wall of the water storage tank, the second position is lower than the first position, and the second position is higher than the lower end of the second baffle.
Optionally, the intelligent water supply system further comprises a water supply pump and a liquid level meter, wherein an inlet of the water supply pump is connected to the lower end side of the water storage tank, an outlet of the water supply pump is connected to water using equipment, and the liquid level meter and the water supply pump are integrated in a DCS control system.
Optionally, the lower end side of the water jet tank is connected to a drain pipe, and the drain pipe is provided with a drain valve.
By means of the technical scheme, the utility model has at least the following advantages:
In the running process of the waste heat boiler, the water jet pump outputs high-speed water flow to the air extractor, vacuum is generated in the air extractor, high-temperature gas in the condenser is continuously extracted, and finally the high-temperature gas enters the incident water tank along with the high-speed water flow through the outlet of the air extractor.
In the process, when the temperature sensor detects that the water temperature at the inlet of the air extractor reaches the upper limit of the working water temperature set by the air extractor, the control valve is opened, the water supplementing pipe begins to supplement cold water to the water injection tank, the water level in the water injection tank is stabilized at a first position along with continuous supplement of the cold water, redundant water flows out along the overflow pipe, a gas phase baffling space is formed at the upper part of the water injection tank, water vapor entering the water injection tank from the air extractor flows along the gas phase baffling space, the residence time of the water vapor is prolonged, and meanwhile, the water vapor is naturally rinsed by the cold water supplemented by the water supplementing pipe, so that the water vapor is liquefied to the greatest extent;
Meanwhile, when the water temperature at the inlet of the air extractor is reduced to the lower limit of the set threshold value of the working water temperature, the control valve is closed, and the water supplementing pipe stops supplementing cold water to the water injection tank.
Through the process, the water temperature of the water jet of the air extractor is continuously stabilized within the set threshold range of the working water temperature, so that the water jet air extractor of the steam turbine can work efficiently.
Drawings
Fig. 1 is a schematic structural diagram of a water-injection type air extractor temperature adjusting device of a steam turbine according to an embodiment of the present utility model.
The reference numerals in the drawings of the specification comprise a water injection tank 1, a water injection pump 2, an air extractor 3, a water delivery pipe 4, a water supplementing pipe 5, an overflow pipe 6, a first baffle plate 7, a second baffle plate 8, a control valve 9, a temperature sensor 10, a spray header 11, a partition plate 12, a fin radiator 13, a pressure relief valve 14, a communicating pipe 15, a water storage tank 16, a water delivery pump 17, a liquid level meter 18, a drain pipe 19 and a drain valve 20.
Detailed Description
In order to further describe the technical means and effects adopted for achieving the preset aim of the utility model, the following detailed description refers to the specific implementation, structure, characteristics and effects according to the application of the utility model with reference to the accompanying drawings and preferred embodiments. In the following description, different "an embodiment" or "an embodiment" do not necessarily refer to the same embodiment. Furthermore, the particular features, structures, or characteristics of one or more embodiments may be combined in any suitable manner.
The utility model is described in further detail below with reference to the drawings and examples.
As shown in FIG. 1, one embodiment of the utility model provides a temperature regulating device of a steam turbine water-jet type air extractor, which comprises a water-jet part and a water-supplementing part;
The water injection part comprises a water injection tank 1, a water injection pump 2 and an air extractor 3, wherein an inlet of the water injection pump 2 is connected to the lower end side of the water injection tank 1, an outlet of the water injection pump 2 is connected to a nozzle of the air extractor 3 through a water pipe 4, and an outlet of the air extractor 3 is connected to the upper end of the water injection tank 1;
The water replenishing part comprises a water replenishing pipe 5, an overflow pipe 6, a plurality of first baffle plates 7 and a plurality of second baffle plates 8, wherein the water replenishing pipe 5 is connected to the top wall of the water injection tank 1, the plurality of first baffle plates 7 and the plurality of second baffle plates 8 are alternately arranged in the upper space of the water injection tank 1, the upper end of the first baffle plates 7 is fixedly connected to the top wall of the water injection tank 1, the lower end of the second baffle plates 8 is lower than the lower end of the first baffle plates 7, the overflow pipe 6 is connected to the first position of the side wall of the water injection tank 1, the first position is higher than the lower end of the second baffle plates 8 and lower than the lower end of the first baffle plates 7, and the water replenishing part is used for stabilizing the liquid level of the water injection tank 1 between the lower ends of the first baffle plates 7 and the lower ends of the second baffle plates 8 so as to form a gas phase baffle space at the upper part of the water injection tank 1;
Wherein, the water supplementing pipe 5 is provided with a control valve 9, the water conveying pipe 4 is provided with a temperature sensor 10, and the temperature sensor 10 and the control valve 9 are integrated in a DCS control system.
The working process of the steam turbine water jet type air extractor temperature regulating device is as follows:
In the running process of the waste heat boiler, the water jet pump 2 outputs high-speed water flow to the air extractor 3, vacuum is generated in the air extractor 3, high-temperature gas in the condenser is continuously extracted, and finally the high-temperature gas flows into the incident water tank 1 along with the high-speed water flow through the outlet of the air extractor 3.
In the above process, when the temperature sensor 10 detects that the water temperature at the inlet of the air extractor 3 reaches the upper threshold value set by the working water temperature of the air extractor 3, the control valve 9 is opened, the water supplementing pipe 5 begins to supplement cold water to the water injection tank 1, and with continuous supplement of cold water, the water level in the water injection tank 1 is stabilized at the first position, the redundant water flows out along the overflow pipe 6, a gas phase baffling space is formed at the upper part of the water injection tank 1, and the vapor entering the water injection tank 1 from the air extractor 3 flows along the gas phase baffling space, so that the residence time of the vapor is prolonged, and meanwhile, the vapor inevitably receives leaching of the cold water supplemented by the water supplementing pipe 5, so that the vapor is liquefied and condensed to the greatest extent;
Meanwhile, when the water temperature at the inlet of the air extractor 3 drops to the lower limit of the set threshold value of the working water temperature, the control valve 9 is closed, and the water supplementing pipe 5 stops supplementing cold water to the water injection tank 1.
Through the process, the water temperature of the water jet of the air extractor 3 is continuously stabilized within the set threshold range of the working water temperature, so that the water jet air extractor 3 of the steam turbine can work efficiently.
Specifically, the nozzle is installed to the upper end of air extractor 3, and the upper space of condenser passes through the pipeline to be connected in the upper end side of air extractor 3, and high-speed rivers are spouted downwards from the nozzle, in air extractor 3, because venturi effect produces the negative pressure, and the gas in the condenser upper space reaches air extractor 3 to spout to water jet tank 1.
In a specific embodiment, the outlet of the aspirator 3 and the overflow pipe 6 are mutually located at the distal end of the top wall of the water jet tank 1.
In this embodiment, specifically, the outlet of the air extractor 3 is connected to one side of the top wall of the water jet tank 1, the overflow pipe 6 is connected to the side wall of the other side of the top wall of the water jet tank 1, and the overflow pipe 6 and the air extractor 3 are respectively connected to two ends of the gas phase baffling space, so that the water vapor has a longer residence time in the water jet tank 1.
In a specific embodiment, the shower head system further comprises a plurality of shower heads 11, the shower heads 11 are sequentially arranged on the top wall of the water injection tank 1, and the water supplementing pipe 5 is respectively connected to the shower heads 11.
In this embodiment, specifically, the plurality of spray heads 11 are sequentially arranged on the top wall of the water injection tank 1, so that the plurality of spray heads 11 are arranged in the whole gas phase baffling space, and the complementary cold water and water vapor have a larger heat exchange area.
In a specific embodiment, the device further comprises a separation plate 12, wherein the separation plate 12 is arranged between the gas phase baffling space and the first position, and the lower end of the separation plate 12 is lower than the lower end of the second baffle plate 8.
In the embodiment, specifically, the upper end of the partition plate 12 is fixedly connected to the top wall of the water jet tank 1, the partition plate 12 separates the gas phase space of the water jet tank 1, the gas phase baffling space is positioned at one side of the partition plate 12, and water vapor is prevented from escaping from the overflow pipe 6, so that the water vapor is fully rinsed by the supplementary cold water;
Meanwhile, the lower parts of the inner spaces of the water injection tanks 1 at the two sides of the partition plate 12 are communicated to form a communicating vessel, so that water in the water injection tanks 1 can normally flow out through the overflow pipe 6, and the water level in the water injection tanks 1 is ensured to be stable.
In a specific embodiment, the heat dissipation device further comprises a fin heat radiator 13, the fin heat radiator 13 comprises an S-shaped pipe and a heat dissipation fin group, the S-shaped pipe is embedded in the heat dissipation fin group, and the S-shaped pipe is communicated with the water delivery pipe 4.
In this embodiment, specifically, when the water jet pump 2 delivers high-speed water flow to the air extractor 3, the high-speed water flow flows through the S-shaped pipe, and heat in the high-speed water flow is dissipated into the air through the heat dissipation fin group, so that the cooling efficiency of the high-speed water flow is improved.
In a specific embodiment, the fin radiator 13 further includes an axial flow fan, the axial flow fan and the radiating fin group are disposed opposite to each other, and the temperature sensor 10 and the axial flow fan are integrated in a DCS control system.
In the embodiment, specifically, the axial flow fan is opposite to the radiating fin group, the axial flow fan drives external airflow to blow through the radiating fin group, so that the heat exchange efficiency of the radiating fin group is improved, and the cooling efficiency of high-speed water flow is indirectly improved;
The temperature sensor 10 and the axial flow fan are controlled in an interlocking way, and when the temperature sensor 10 detects that the temperature of high-speed water flow is higher than the upper limit of the set threshold value of the working water temperature of the air extractor 3, the axial flow fan is started.
In a specific embodiment, the device further comprises a pressure release valve 14, wherein the pressure release valve 14 is installed on the top wall of the water injection tank 1, and the outlet of the air extractor 3 and the pressure release valve 14 are respectively positioned at two ends of the gas phase baffling space.
In this embodiment, specifically, water vapor enters the gas phase baffling space from the air extractor 3, and is sprayed by cold water, if the air pressure in the water injection tank 1 is still higher, the high-pressure gas can be discharged through the pressure release valve 14.
In a specific embodiment, the water tank further comprises a communicating pipe 15 and a water storage tank 16, one end of the communicating pipe 15 is connected to a second position on the side wall of the water injection tank 1, the other end of the communicating pipe is connected to the top wall of the water storage tank 16, the second position is lower than the first position, and the second position is higher than the lower end of the second baffle plate 8.
In the present embodiment, specifically, in order to improve the water resource utilization rate, the water in the water jet tank 1 overflows to the water storage tank 16 through the communicating pipe 15 for reuse, and when the water storage tank 16 is full, the excessive water in the water jet tank 1 flows out through the overflow pipe 6.
In a specific embodiment, the intelligent water supply system further comprises a water supply pump 17 and a liquid level meter 18, wherein an inlet of the water supply pump 17 is connected to the lower end side of the water storage tank 16, an outlet of the water supply pump 17 is connected to water using equipment, and the liquid level meter 18 and the water supply pump 17 are integrated in a DCS control system.
In this embodiment, specifically, the water pump 17 and the level gauge 18 are controlled in an interlocking manner, and when the liquid level of the water tank 16 is low, the water pump 17 stops running, so as to avoid the lack of liquid in the water pump 17.
In a specific embodiment, the lower end side of the water injection tank 1 is connected to a drain pipe 19, and the drain pipe 19 is provided with a drain valve 20.
In this embodiment, specifically, when the water injection tank 1 is operated for a long time, the drain valve 20 is opened to drain the sewage inside the water injection tank 1 when the waste heat boiler is stopped for maintenance, so as to avoid depositing a large amount of scale in the water injection tank 1.
The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.
Claims (10)
1. A steam turbine water jet type ejector temperature regulating device, comprising:
The water injection part comprises a water injection tank, a water injection pump and an air extractor, wherein an inlet of the water injection pump is connected to the lower end side of the water injection tank, an outlet of the water injection pump is connected to a nozzle of the air extractor through a water pipe, and an outlet of the air extractor is connected to the upper end of the water injection tank;
The water supplementing part comprises a water supplementing pipe, an overflow pipe, a plurality of first baffle plates and a plurality of second baffle plates, wherein the water supplementing pipe is connected to the top wall of the water jet tank, the first baffle plates and the second baffle plates are alternately arranged in the upper space of the water jet tank, the upper end of the first baffle plates is fixedly connected to the top wall of the water jet tank, the lower end of the second baffle plates is lower than the lower end of the first baffle plates, the overflow pipe is connected to the first position of the side wall of the water jet tank, the first position is higher than the lower end of the second baffle plates and lower than the lower end of the first baffle plates, and the water supplementing pipe is used for stabilizing the liquid level of the water jet tank between the lower end of the first baffle plates and the lower end of the second baffle plates so as to form a gas phase space on the upper part of the water jet tank;
The water supplementing pipe is provided with a control valve, the water conveying pipe is provided with a temperature sensor, and the temperature sensor and the control valve are integrated in a DCS control system.
2. The steam turbine water jet type air extractor temperature regulator according to claim 1, wherein,
The outlet of the air extractor and the overflow pipe are mutually positioned at the far end of the top wall of the water jet tank.
3. The steam turbine water jet type air extractor temperature regulator according to claim 1, wherein,
The water spraying device also comprises a plurality of spray heads which are sequentially arranged on the top wall of the water spraying tank, the water replenishing pipes are respectively connected with the spray headers.
4. The steam turbine water jet type air extractor temperature regulator according to claim 1, wherein,
The gas phase baffle device comprises a gas phase baffle space, a first baffle plate and a second baffle plate, wherein the gas phase baffle space is arranged between the gas phase baffle space and the first position, and the lower end of the first baffle plate is lower than the lower end of the second baffle plate.
5. A steam turbine water jet ejector attemperator according to any one of claims 1 to 4, wherein,
The heat dissipation device comprises a water pipe, and is characterized by further comprising a fin radiator, wherein the fin radiator comprises an S-shaped pipe and a heat dissipation fin group, the S-shaped pipe is embedded in the heat dissipation fin group, and the S-shaped pipe is communicated with the water pipe.
6. The steam turbine water jet type air extractor temperature regulator as set forth in claim 5, wherein,
The fin radiator further comprises an axial flow fan, the axial flow fan and the radiating fin group are arranged oppositely, and the temperature sensor and the axial flow fan are integrated in the DCS control system.
7. The steam turbine water jet type air extractor temperature regulator as set forth in claim 4, wherein,
The air pump further comprises a pressure relief valve, wherein the pressure relief valve is arranged on the top wall of the water injection tank, and the outlet of the air pump and the pressure relief valve are respectively positioned at two ends of the gas phase baffling space.
8. A steam turbine water jet ejector attemperator according to any one of claims 1 to 4, wherein,
The water tank is characterized by further comprising a communicating pipe and a water storage tank, wherein one end of the communicating pipe is connected to a second position of the side wall of the water injection tank, the other end of the communicating pipe is connected to the top wall of the water storage tank, the second position is lower than the first position, and the second position is higher than the lower end of the second baffle.
9. The steam turbine water jet type air extractor temperature adjusting device as set forth in claim 8, wherein,
Still include water delivery pump and level gauge, the import of water delivery pump connect in the lower extreme side of storage water tank, the export of water delivery pump is connected in water equipment, the level gauge with the water delivery pump is integrated in the DCS control system.
10. A steam turbine water jet ejector attemperator according to any one of claims 1 to 4, wherein,
The lower end side of the water jet tank is connected with a drain pipe, and the drain pipe is provided with a drain valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520495562.1U CN223724981U (en) | 2025-03-20 | 2025-03-20 | Steam turbine water jet ejector temperature control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202520495562.1U CN223724981U (en) | 2025-03-20 | 2025-03-20 | Steam turbine water jet ejector temperature control device |
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| Publication Number | Publication Date |
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| CN223724981U true CN223724981U (en) | 2025-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202520495562.1U Active CN223724981U (en) | 2025-03-20 | 2025-03-20 | Steam turbine water jet ejector temperature control device |
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| CN (1) | CN223724981U (en) |
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- 2025-03-20 CN CN202520495562.1U patent/CN223724981U/en active Active
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