Steam turbine water spray atomization temperature control device

Abstract

The present disclosure relates to a steam turbine water spray atomization temperature control device, comprising: an exhaust pipe; a water tank, the water tank is connected to a water spray pipe with one end extending into the exhaust pipe, and the end of the water spray pipe extending into the exhaust pipe is provided with a plurality of atomizing nozzles; a collecting box, which is connected to the bottom end of the water tank, and the collecting box is connected to a connecting pipe connected to the water tank; and a return water pump, which is used to pump the liquid in the connecting pipe into the water tank. In this way, the water in the water tank is introduced into the water spray pipe, and then sprayed out through a plurality of atomizing nozzles, so that the liquid can be fully atomized and combined with the steam in the exhaust pipe to reduce the temperature, and the water droplets on the inner wall of the exhaust pipe can slide down and accumulate in the collecting box, so as to prevent the sprayed water from adhering to the inner wall of the exhaust pipe and forming water droplets deposited in the exhaust pipe. Through the action of the return water pump, the water in the collecting box is introduced into the connecting pipe, and then enters the water tank, thereby improving the cooling effect of the temperature control device on the steam, thereby improving the use effect of the temperature control device.

Description

Technical Field

[0001] The present invention relates to the technical field of steam turbines in thermal power plants, and in particular to a water spraying atomization temperature regulating device for a steam turbine. Background Art

[0002] The steam turbine of a thermal power plant, also known as a steam turbine, is one of the core equipment of a thermal power plant. It has the characteristics of large single-machine power, high efficiency, stable operation and long service life. Its main function is to convert the thermal energy of the high-temperature and high-pressure steam generated by the boiler into mechanical energy, and then drive the generator to generate electricity. The steam turbine will generate steam during use.

[0003] In the related art, the water spray atomization temperature control device can only meet the cooling treatment of water vapor. Since the water sprayed from the water spray pipe will adhere to the inner wall of the exhaust pipe, form water droplets and deposit in the exhaust pipe, the use effect of the device is affected and the cooling effect is poor. Utility Model Content

[0004] The purpose of the present disclosure is to provide a steam turbine water spray atomization temperature control device to at least partially solve the problems existing in the related art.

[0005] In order to achieve the above-mentioned object, the present disclosure provides a steam turbine water spray atomization temperature control device, comprising:

[0006] Exhaust pipe;

[0007] A water tank, wherein the water tank is connected to a water spray pipe having one end extending into the exhaust pipe, and the end of the water spray pipe extending into the exhaust pipe is provided with a plurality of atomizing nozzles;

[0008] a collecting box, connected to the bottom end of the water tank, the collecting box being connected to a connecting pipe connected to the water tank; and

[0009] A water return pump is used to pump the liquid in the connecting pipe into the water tank.

[0010] Optionally, the side wall of the exhaust pipe is connected to an air inlet hood connected to the exhaust pipe, the end of the air inlet hood away from the exhaust pipe has an opening connected to the atmosphere, and a fan is installed in the inner cavity of the air inlet hood.

[0011] Optionally, an air filter is installed at the opening of the air inlet cover.

[0012] Optionally, the steam turbine water spray atomization temperature control device also includes a water chiller connected to the water tank.

[0013] Optionally, the steam turbine water spray atomization temperature control device also includes a water delivery pump for pumping the liquid in the water tank into the water spray pipe.

[0014] Optionally, an end of the water tank away from the exhaust pipe is connected to a water inlet pipe communicated with a water source.

[0015] Optionally, the water tank has a containing cavity for containing liquid, and a filtrate net is installed at a position of the containing cavity close to the water inlet pipe.

[0016] Optionally, an opening for the filtrate net to extend into is provided at the top of one end of the water tank close to the water inlet pipe, and a top plate is detachably installed at the opening of the water tank, and the top plate is configured to cover the opening, and the filtrate net is connected to the bottom end of the top plate, and the filtrate net is configured to separate the accommodating chamber into a first accommodating chamber and a second accommodating chamber, wherein the water inlet pipe is connected to the first accommodating chamber, and the first accommodating chamber and the second accommodating chamber are connected through the filtrate net.

[0017] Optionally, the exhaust pipe has an air outlet, and an exhaust fan is installed at the air outlet.

[0018] Optionally, a top cover is installed at the end of the exhaust pipe having the air outlet, and the top cover is arranged at a distance from the exhaust pipe.

[0019] Through the above technical solution, the water in the water tank is introduced into the water spray pipe, and then sprayed out through multiple atomizing nozzles, so that the liquid can be fully atomized and combined with the steam in the exhaust pipe to cool down. The water droplets on the inner wall of the exhaust pipe can slide down and accumulate in the collection box, avoiding the water sprayed by the atomizing nozzle from adhering to the inner wall of the exhaust pipe and forming water droplets deposited in the exhaust pipe. Through the action of the return water pump, the water in the collection box is introduced into the connecting pipe and then into the water tank, thereby improving the cooling effect of the temperature control device on the steam, thereby improving the use effect of the temperature control device.

[0020] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings:

[0022] Figure 1 is a schematic structural diagram of a steam turbine water spray atomization temperature control device provided by an exemplary embodiment of the present disclosure;

[0023] Figure 2 is a cross-sectional view of a steam turbine water spray atomization temperature control device provided by an exemplary embodiment of the present disclosure;

[0024] Figure 3 yes Figure 2 A partial enlarged view of middle A;

[0025] Figure 4 is a side view of a steam turbine water spray atomization temperature control device provided by an exemplary embodiment of the present disclosure;

[0026] Figure 5 It is a schematic diagram of the assembly of an air inlet cover and a fan in a steam turbine water spray atomization temperature control device provided in another exemplary embodiment of the present disclosure.

[0027] Description of Reference Numerals

[0028] 1-exhaust pipe; 2-water tank; 21-spray pipe; 211-atomizing nozzle; 22-water inlet pipe; 23-filtrate net; 24-top plate; 3-collection box; 31-connecting pipe; 4-return water pump; 5-air inlet cover; 51-fan; 52-air filter net; 6-water chiller; 7-water pump; 8-exhaust fan; 9-top cover DETAILED DESCRIPTION

[0029] The specific implementation of the present disclosure is described in detail below in conjunction with the accompanying drawings. It should be understood that the specific implementation described herein is only used to illustrate and explain the present disclosure, and is not used to limit the present disclosure.

[0030] In the present disclosure, unless otherwise stated, the directional terms "upper", "lower", "top", and "bottom" are defined based on the directions in which the relevant components are actually used. "Inside" and "outside" refer to the contours of the corresponding components themselves. The terms "first", "second", etc. are used to distinguish different components and do not have order or importance. In the present disclosure, when the following description refers to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements.

[0031] Reference Figures 1 to 5 The present invention provides a steam turbine water spray atomization temperature control device, which may include an exhaust pipe 1, a water tank 2, a collecting box 3 and a return water pump 4, wherein the water tank 2 is connected to a water spray pipe 21 with one end extending into the exhaust pipe 1, and the end of the water spray pipe 21 extending into the exhaust pipe 1 is provided with a plurality of atomizing nozzles 211; the collecting box 3 is connected to the bottom end of the water tank 2, and the collecting box 3 is connected to a connecting pipe 31 connected to the water tank 2; the return water pump 4 is used to pump the liquid in the connecting pipe 31 into the water tank 2.

[0032] Through the above technical solution, the water in the water tank is introduced into the water spray pipe, and then sprayed out through multiple atomizing nozzles, so that the liquid can be fully atomized and combined with the steam in the exhaust pipe to cool down. The water droplets on the inner wall of the exhaust pipe can slide down and accumulate in the collection box, avoiding the water sprayed by the atomizing nozzle from adhering to the inner wall of the exhaust pipe and forming water droplets deposited in the exhaust pipe. Through the action of the return water pump, the water in the collection box is introduced into the connecting pipe and then into the water tank, thereby improving the cooling effect of the temperature control device on the steam, thereby improving the use effect of the temperature control device.

[0033] Since the steam generated by the steam turbine is often too concentrated and irritating, simple atomization cannot dilute the steam. Direct discharge of such steam into the atmosphere will cause certain pollution, thus affecting the use effect of the device. Figure 2 The side wall of the exhaust pipe 1 may be connected to an air inlet hood 5 in communication with the exhaust pipe 1. The end of the air inlet hood 5 away from the exhaust pipe 1 has an opening communicating with the atmosphere. The inner cavity of the air inlet hood 5 is equipped with a fan 51. While cooling, the fan 51 operates to generate wind pressure, and introduces external air into the exhaust pipe 1 through the air inlet hood 5 to contact with the steam, thereby diluting the steam in the exhaust pipe 1. The diluted steam is then discharged into the atmosphere, reducing the pollution of the steam to the atmosphere, thereby improving the use effect of the device. Specifically, the fan 51 can be installed on the fan seat, and the fan seat can be installed on the air inlet hood 5 by bolts.

[0034] Further, refer to Figure 5 , an air filter net 52 may be installed at the opening of the air inlet cover 5. Specifically, the air filter net 52 may be fixedly installed on the side wall of the air inlet cover 5 near the opening by fasteners such as bolts. The air filter net 52 can filter the air entering the air inlet cover 5, thereby preventing debris from entering the exhaust pipe 1.

[0035] In some embodiments, reference Figure 1 , Figure 2 The steam turbine water spray atomization temperature control device may also include a water chiller 6 connected to the water tank 2. The water in the water tank 2 is cooled by the water chiller 6, and the cooled water is introduced into the water spray pipe 21, sprayed from the atomizing nozzle 211, and combined with the steam in the exhaust pipe 1 to cool it.

[0036] In some embodiments, reference Figure 1 , Figure 2 The steam turbine water spray atomization temperature control device may further include a water delivery pump 7 for pumping the liquid in the water tank 2 into the water spray pipe 21. The water delivery pump 7 can guide the cooled water into the water spray pipe 21, and then spray it out from the atomizing nozzle 211.

[0037] In some embodiments, reference Figure 1 , Figure 2The end of the water tank 2 away from the exhaust pipe 1 can be connected to a water inlet pipe 22 connected to a water source. Water enters the water tank 2 through the water inlet pipe 22 to provide a water source for the atomizing nozzle 211.

[0038] According to an exemplary embodiment of the present disclosure, Figure 2 , Figure 3 The water tank 2 has a receiving cavity for receiving liquid, and a filtrate net 23 can be installed at a position of the receiving cavity near the water inlet pipe 22. The filtrate net 23 can filter the water entering the water tank 2, thereby preventing impurities from entering the water tank 2 and then entering the exhaust pipe 1.

[0039] Specifically, refer to Figure 3 The top of the water tank 2 near the end of the water inlet pipe 22 is provided with an opening for the filtrate net 23 to extend into, and a top plate 24 is detachably mounted at the opening of the water tank 2, the top plate 24 is configured to cover the opening, the filtrate net 23 is connected to the bottom end of the top plate 24, and the filtrate net 23 can be configured to separate the receiving chamber into a first receiving chamber and a second receiving chamber, wherein the water inlet pipe 22 is connected to the first receiving chamber, and the first receiving chamber and the second receiving chamber are connected through the filtrate net 23. The top plate 24 can be constructed as a rectangular parallelepiped, the top of the filtrate net 23 is fixedly connected to the bottom of the top plate 24, the filtrate net 23 enters the receiving chamber of the water tank 2 through the opening of the water tank 2, the top plate 24 and the water tank 2 are detachably connected by fasteners such as bolts, water enters the first receiving chamber from the water inlet pipe 22, and then enters the second receiving chamber through the filtrate net 23, so as to filter the water entering the exhaust pipe 1.

[0040] According to some embodiments, reference Figure 2 The exhaust pipe 1 has an air outlet, and an exhaust fan 8 can be installed at the air outlet. In this way, the diluted steam can be discharged into the atmosphere through the air outlet by the exhaust fan 8.

[0041] Among them, reference Figure 1 , Figure 2 The end of the exhaust pipe 1 with the air outlet may be installed with a top cover 9, and the top cover 9 is arranged at a distance from the exhaust pipe 1. In the embodiment of the present disclosure, the top cover 9 is configured as a cone, which can guide the steam discharge and prevent the steam from diffusing directly from the top.

[0042] The working process of the steam turbine water spray atomization temperature control device is as follows: water enters the water tank 2 through the water inlet pipe 22, and the filtrate net 23 is fixed on the water tank 2. The filtrate net 23 filters the water entering the water tank 2, and the water chiller 6 cools the water in the water tank 2. The water delivery pump 7 guides the cooled water into the water spray pipe 21, and sprays it from the atomizing nozzle 211 to combine with the steam in the exhaust pipe 1 to cool it. The water droplets on the inner wall of the exhaust pipe 1 accumulate in the collecting box 3, and the return water pump 4 is activated to guide the water in the collecting box 3 into the connecting pipe 31 and enter the water tank 2. The fan 51 is operated to generate wind pressure, and the external air is introduced into the exhaust pipe 1 through the air hood 5 to contact with the steam, dilute the steam in the exhaust pipe 1, and improve the cooling effect of the temperature control device on the steam, thereby improving the use effect of the steam turbine water spray atomization temperature control device.

[0043] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.

[0044] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present disclosure will not further describe various possible combinations.

[0045] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.

Claims

1. A steam turbine water spray atomization temperature control device, characterized in that: include: Exhaust pipe; A water tank, wherein the water tank is connected to a water spray pipe having one end extending into the exhaust pipe, and the end of the water spray pipe extending into the exhaust pipe is provided with a plurality of atomizing nozzles; a collecting box, connected to the bottom end of the water tank, the collecting box being connected to a connecting pipe connected to the water tank; and A water return pump is used to pump the liquid in the connecting pipe into the water tank.

2. The steam turbine water spray atomization temperature control device according to claim 1, characterized in that: The side wall of the exhaust pipe is connected with an air inlet cover which is in communication with the exhaust pipe. The end of the air inlet cover which is away from the exhaust pipe has an opening which is in communication with the atmosphere. The inner cavity of the air inlet cover is provided with a fan.

3. The steam turbine water spray atomization temperature control device according to claim 2, characterized in that: An air filter net is installed at the opening of the air inlet cover.

4. The steam turbine water spray atomization temperature control device according to claim 1, characterized in that: The steam turbine water spray atomization temperature control device also includes a water chiller connected to the water tank.

5. The steam turbine water spray atomization temperature control device according to claim 1, characterized in that: The steam turbine water spray atomization temperature control device also includes a water delivery pump, which is used to pump the liquid in the water tank into the water spray pipe.

6. The steam turbine water spray atomization temperature control device according to claim 1, characterized in that: The end of the water tank away from the exhaust pipe is connected with a water inlet pipe communicated with a water source.

7. The steam turbine water spray atomization temperature control device according to claim 6, characterized in that: The water tank has a containing cavity for containing liquid, and a filtrate net is installed at a position of the containing cavity close to the water inlet pipe.

8. The steam turbine water spray atomization temperature control device according to claim 7, characterized in that: An opening for the filtrate net to extend into is provided at the top of one end of the water tank close to the water inlet pipe, and a top plate is detachably installed at the opening of the water tank, and the top plate is configured to cover the opening. The filtrate net is connected to the bottom end of the top plate, and the filtrate net is configured to separate the accommodating chamber into a first accommodating chamber and a second accommodating chamber, wherein the water inlet pipe is connected to the first accommodating chamber, and the first accommodating chamber and the second accommodating chamber are connected through the filtrate net.

9. The steam turbine water spray atomization temperature control device according to claim 1, characterized in that: The exhaust pipe is provided with an air outlet, and an exhaust fan is installed at the air outlet.

10. The steam turbine water spray atomization temperature control device according to claim 9, characterized in that: A top cover is installed at the end of the exhaust pipe having the air outlet, and the top cover is arranged at a distance from the exhaust pipe.

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