CN217057490U

CN217057490U - Hydrophobic flash tank

Info

Publication number: CN217057490U
Application number: CN202220683904.9U
Authority: CN
Inventors: 朱能闯; 郭明宇; 韩汉平; 余永江; 廖申丁
Original assignee: China City Environment Protection Engineering Ltd
Current assignee: China City Environment Protection Engineering Ltd
Priority date: 2022-03-24
Filing date: 2022-03-24
Publication date: 2022-07-26
Anticipated expiration: 2032-03-24

Abstract

The utility model discloses a hydrophobic flash tank, including a jar body and with the hydrophobic inlet tube that the jar body links to each other, be equipped with gas vent and outlet on the jar body, hydrophobic inlet tube passes jar body and setting firmly on the jar body, the play water end and the intake end of hydrophobic inlet tube are located respectively the inside and outside both sides of jar body, hydrophobic inlet tube are close to the play water end of hydrophobic inlet tube including falling the section of making an uproar and falling the section of making an uproar, and the aperture of hydrophobic inlet tube intake end is less than or equal to the aperture of falling the section of making an uproar intake end of making an uproar, fall to be equipped with the shoulder hole in the section of making an uproar, the shoulder hole increases along the rivers direction in proper order including the aperture of the multistage pore and each section pore that communicate in proper order. The utility model provides a hydrophobic flash tank is located the hydrophobic inlet tube on the hydrophobic flash tank and is provided with the noise reduction section that can realize the dilatation effect, can reduce the noise of flash process well, and then effectively improves the operational environment of job site.

Description

Hydrophobic flash tank

Technical Field

The utility model relates to an auxiliary assembly field of steam turbine of thermal power factory, concretely relates to hydrophobic flash tank.

Background

In order to reduce the consumption of primary energy, especially the primary energy represented by coal, the future trend is bound to take a high-efficiency thermal power generating unit with high parameter, low energy consumption and low emission as a main development direction. A sewage utilization system of a thermal power plant is a typical waste heat utilization example of existing heat and working medium entering a thermodynamic system, and is characterized in that the drainage in a pressure drainage pipeline of the thermal power plant is guided into a drainage flash tank for decompression and flash evaporation, part of steam-water mixture is gasified and flash evaporated into steam, the steam is introduced into a heat exchanger or a deaerator, and the rest high-temperature water is cooled and then enters a water supply system again to increase waste heat utilization and reduce steam-water loss in the operation process.

In the existing drainage flash tank, a large amount of high-temperature and high-pressure steam-water mixture enters the interior of the drainage flash tank through a drainage pipeline and is separated into steam and drainage through a flash evaporation process, the flash evaporation process of the steam-water mixture can generate large noise, and the working environment of an operation site is seriously influenced. In view of the above-mentioned shortcomings, the present invention provides an improvement.

Disclosure of Invention

In order to overcome the not enough of background art, the utility model provides a hydrophobic flash tank is located the hydrophobic inlet tube on the hydrophobic flash tank and is provided with the section of making an uproar that falls that can realize the dilatation effect, can reduce the noise of flash process well, and then effectively improves the operational environment of job site.

The utility model adopts the technical proposal that: the utility model provides a hydrophobic flash vessel, including a jar body and with the hydrophobic inlet tube that jar body links to each other, be equipped with gas vent and outlet on the jar body, hydrophobic inlet tube passes jar body and setting firmly on the jar body, the play water end and the end of intaking of hydrophobic inlet tube are located respectively the inside and outside both sides of jar body, hydrophobic inlet tube are close to the play water end of hydrophobic inlet tube including falling the section of making an uproar and falling the section of making an uproar, and the aperture of hydrophobic inlet tube end of intaking is less than or equal to the aperture of falling the section of making an uproar end of intaking, fall to be equipped with the shoulder hole in the section of making an uproar, the shoulder hole increases along the rivers direction including the aperture in the multistage pore and each section pore that communicate in proper order.

Preferably, the water outlet end of the noise reduction section is a buffer section with a plurality of through holes arranged on the pipe wall.

Preferably, the noise reduction section is provided in the tank body.

Preferably, the part of the hydrophobic water inlet pipe in the tank body is annular and is close to the inner wall of the tank body.

Preferably, a spiral diversion trench is fixedly arranged on the inner wall of the tank body, and the upper end of the diversion trench is connected with the water outlet end of the hydrophobic water inlet pipe.

Preferably, the top of the tank body is provided with a cooling spray nozzle, the cooling spray nozzle is connected with a cooling water pipeline, the tank body is also internally provided with a temperature probe, and the temperature probe is positioned at the top of the tank body.

Preferably, the tank body is also internally provided with a liquid level probe which is positioned at the bottom of the tank body.

Preferably, a pressure sensor is further arranged in the tank body and is positioned at the top of the tank body.

Preferably, the side wall of the tank body is provided with an inspection manhole.

Preferably, the drainage water inlet pipe is integrally formed or connected by sequentially inserting and welding the head and the tail of a plurality of sections of reducing pipes.

To sum up, the utility model discloses beneficial effect does:

1. the diameters of all sections of the pore passages in the noise reduction section along the water flow direction are sequentially increased, so that a high-temperature and high-pressure steam-water mixture can sequentially pass through all sections of the pore passages with the diameters from small to large when entering the noise reduction section to flow forwards, the structural design of the noise reduction section can well realize the capacity expansion effect, when drainage of all parts of the steam-water pipeline of a power plant enters a drainage flash tank to be subjected to flash evaporation, the noise in the flash evaporation process can be reduced, and the working environment of an operation site can be effectively improved;

2. the buffer section is additionally arranged, so that the buffer effect can be effectively realized, and the impact force of high-temperature and high-pressure drain can be greatly buffered when the high-temperature and high-pressure drain is led into the drain flash tank along the drain water inlet pipe by additionally arranging the plurality of through holes on the pipe wall of the buffer section, so that too large impact on the inner wall of the tank body can not be caused, the service life of the drain flash tank is prolonged, and the maintenance cost can be reduced;

3. the inner part of the tank body of the hydrophobic water inlet pipe is annular and is close to the inner wall of the tank body, and the steam-water mixture entering the hydrophobic water inlet pipe can better flow out along the inner wall of the tank body when being discharged from the water outlet end, so that the direct impact on the inner wall of the tank body can be favorably reduced

4. The spiral diversion trench is fixed in the middle of the inner wall of the tank body, so that the diversion drainage effect can be well played, the diversion trench can guide drainage flowing out of the water outlet end of the drainage water inlet pipe to spirally descend, impact of the drainage on the inner wall of the tank body can be better dispersed, and the service life of the drainage flash tank can be prolonged.

The present invention will be further described with reference to the accompanying drawings and detailed description.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic top view of the internal structure of the present invention;

FIG. 3 is a schematic structural view of the drain inlet pipe of the present invention;

the labels in the figure are: 1-a drainage flash tank, 2-a tank body, 3-a drainage water inlet pipe, 4-a cooling spray head, 5-a flow guide groove, 6-a pressure sensor, 7-a temperature probe, 8-a liquid level probe, 9-an inspection manhole, 10-a support column, 21-an exhaust port, 22-a water outlet, 31-a noise reduction section and 32-a buffer section.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to fig. 1 to 3 in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.

In order to make the purpose, technical solution and advantages of the present invention clearer, the attached drawings in the embodiments of the present invention will be combined below to carry out more detailed description on the technical solution in the embodiments of the present invention.

As shown in fig. 1 to fig. 3, a hydrophobic flash tank 1 that this embodiment discloses, including jar body 2 and with the hydrophobic inlet tube 3 that jar body 2 links to each other, be equipped with gas vent 21 and outlet 22 on jar body 2, hydrophobic inlet tube 3 passes jar body 2 just sets firmly on jar body 2, the play water end and the inlet end of hydrophobic inlet tube 3 are located respectively the inside and outside both sides of jar body 2, hydrophobic inlet tube 3 fall the section of making an uproar 31 and be close to the play water end of hydrophobic inlet tube 3, the aperture of the hydrophobic inlet tube 3 inlet end is less than or equal to the aperture of the section of making an uproar 31 inlet end of making an uproar, fall and be equipped with the shoulder hole in the section of making an uproar 31, the shoulder hole increases along the rivers direction including the aperture in the multistage pore and the each section pore that communicate in proper order. In the above technical scheme, the drain flash tank 1 comprises a cylindrical tank body 2 and a drain water inlet pipe 3 arranged in the middle of the tank body 2, an exhaust port 21 located at the top of the tank body 2 can facilitate the discharge of high-temperature and high-pressure steam after flash evaporation, a drain port 22 located at the bottom of the tank body 2 can facilitate the discharge of drain water after temperature reduction and pressure reduction, the drain water inlet pipe 3 penetrates through the tank body 2 and is welded on the tank body 2, the diameters of all sections of pore passages in the noise reduction section 31 along the water flow direction are sequentially increased, so that a high-temperature and high-pressure steam-water mixture can sequentially pass through all sections of pore passages with diameters from small to large when entering the noise reduction section 31 to flow forwards, the structural design of the noise reduction section 31 can well realize the flash expansion effect, when all parts of the steam-water pipelines of a power plant are drained and enter the drain flash tank 1, and the working environment of an operation site can be effectively improved. In the specific implementation of this embodiment, the plurality of pillars 10 are fixedly disposed at the bottom of the tank 2, and the arrangement of the pillars 10 facilitates installation of the drain flash tank 1, so that the drain flash tank 1 can be supported to a suitable height, and normal operation of various devices at the drain outlet 22 is ensured. The number of the pore channels of the internal stepped hole of the noise reduction section 31 is not less than 2 sections in specific implementation, so that the noise reduction effect can be better ensured, and the number of the pore channels can be properly increased according to actual requirements in actual implementation.

As a preferred technical scheme, the water outlet end of the noise reduction section 31 is a buffer section 32 with a plurality of through holes on the pipe wall. In prior art, a large amount of high temperature and high pressure steam-water mixtures pass through inside hydrophobic pipeline entering hydrophobic flash tank 1, when separating into steam and drainage via the flash process, the flash process of steam-water mixtures can produce great impact to the inner wall of hydrophobic flash tank 1, thereby increased the running loss to hydrophobic flash tank 1, reduce the life of hydrophobic flash tank 1, so the embodiment has add buffer section 32 and has realized the cushioning effect, through add a plurality of through-holes on buffer section 32's pipe wall, when making high temperature and high pressure drainage along in the leading-in hydrophobic flash tank 1 of hydrophobic inlet tube 3, its impact force can obtain great buffering, can not cause too big impact to the internal wall of jar 2, also can reduce cost of maintenance when improving hydrophobic flash tank 1 life. When the embodiment is implemented, the corresponding part outside one pore channel in the noise reduction section 31 close to the water outlet end is set as the buffer section 32, so that a better buffer effect can be obtained in actual use. In particular, the buffer section 32 may be fixed to the inner wall of the tank 2 by a pipe clamp, which belongs to the prior art and is not described in detail herein.

Preferably, the noise reduction section 31 is disposed in the tank 2. In specific implementation, the noise reduction section 31 may be only disposed in the tank body 2, or may extend to the outside of the tank body 2, the noise reduction section 31 of this embodiment is only disposed in the tank body 2, and the noise reduction section 31 located in the tank body 2 can well meet the actual noise reduction requirement. In a specific implementation, the noise reduction section 31 located inside the tank 2 may be fixed to the inner wall of the tank 2 by using a pipe clamp, which belongs to the prior art and is not specifically described herein.

As a preferred technical scheme, the part of the hydrophobic water inlet pipe 3 positioned in the tank body 2 is annular and is close to the inner wall of the tank body 2. In this embodiment, the 2 internal parts of jar body of hydrophobic inlet tube 3 are the arc and arrange along 2 inner walls tangential of jar body, and the radian of the interior hydrophobic inlet tube 3 of

jar body

2 and 2 inner wall looks adaptations of jar body promptly can make it press close to the inner wall of jar body 2 like this better, and the steam-water mixture that gets into hydrophobic inlet tube 3 can flow along the inner wall of jar body 2 better when going out from the play water end, can be favorable to alleviateing the direct impact to the inner wall of jar body 2.

As a preferred technical scheme, a spiral diversion trench 5 is fixedly arranged on the inner wall of the tank body 2, and the upper end of the diversion trench 5 is connected with the water outlet end of the hydrophobic water inlet pipe 3. In this embodiment, the spiral guiding gutter 5 is fixed in the middle of the inner wall of the tank body 2, so as to well play a role of guiding water drainage, and the guiding gutter 5 can guide the drainage flowing out from the water outlet end of the drainage water inlet pipe 3 to spirally descend, so as to better disperse the impact of the drainage on the inner wall of the tank body 2, thereby being beneficial to prolonging the service life of the drainage flash tank 1. During specific implementation, the diversion trench 5 can be directly welded on the inner wall of the tank body 2, and the end part of the hydrophobic water inlet pipe 3 can be welded together with the upper end of the diversion trench 5.

As a preferred technical scheme, a cooling spray nozzle 4 is arranged at the top of the tank body 2, the cooling spray nozzle 4 is connected with a cooling water pipeline, a temperature probe 7 is further arranged in the tank body 2, and the temperature probe 7 is positioned at the top of the tank body 2. The temperature and the pressure of steam are reduced by the hydrophobic flash tank 1 through the flash process, but if the temperature of the flash steam is over-high due to overhigh hydrophobic temperature, the overtemperature of a local steam pipe network and steam equipment possibly caused by direct discharge is possibly caused, so that the normal operation of the whole steam-water pipeline is influenced; meanwhile, the drainage water with too high temperature cannot be directly discharged into a water supply system for reuse. To this embodiment, cooling nozzle 4 for reducing flash tank operation temperature has been add at hydrophobic flash tank 1 jar of body 2 top, cooling nozzle 4 is connected with power plant cooling water system through cooling water pipe, cooling nozzle 4 moves and is controlled by the computer, when hydrophobic flash tank 1 inside operating temperature is higher, the computer sends the instruction and opens cooling nozzle 4, spout into cooling water in hydrophobic flash tank 1 jar of body 2, can effectively reduce flash steam and hydrophobic temperature, temperature probe 7 is temperature sensor, can real-time supervision hydrophobic flash tank 1 jar of body 2 inside temperature size through addding temperature sensor, and control cooling nozzle 4 through the computer, can be favorable to guaranteeing that the temperature of hydrophobic flash tank 1 inside accords with the setting value. The cooling spray head 4 and the temperature probe 7 can be referred to the prior art and are not further described herein.

As a preferred technical scheme, still be equipped with liquid level probe 8 in jar body 2 just liquid level probe 8 is located the bottom of jar body 2. In this embodiment, the liquid level probe 8 is a liquid level sensor, the normal operation of the drain flash tank 1 needs to maintain the height of the drain liquid level inside the tank 2 of the drain flash tank 1, the liquid level probe 8 is additionally arranged at the bottom of the tank 2 of the drain flash tank 1, the liquid level inside the tank 2 of the drain flash tank 1 can be detected in real time through the liquid level probe 8, the opening of the outlet valve of the drain outlet 22 is controlled through a computer, and then the liquid level inside the tank 2 of the drain flash tank 1 is controlled. The liquid level probe 8 can refer to the prior art and will not be further described herein.

As a preferred technical scheme, still be equipped with pressure sensor 6 in jar body 2 and pressure sensor 6 is located the top of jar body 2. Hydrophobic flash vessel 1 reduces the temperature and the pressure of steam through the flash process, and the pressure of steam extraction mouth department receives the influence of secondary steam equipment and steam pipe network, if steam extraction mouth department pressure oscillation, can influence the flash evaporation effect in hydrophobic flash vessel 1 to influence the normal operating of whole soda pipeline. To this embodiment in the top in the hydrophobic flash tank 1 add the pressure sensor 6 that is used for detecting hydrophobic flash tank 1 internal pressure, can the internal pressure size of the 1 jar of body 2 of hydrophobic flash tank of real-time supervision through pressure sensor 6 to through the pressure of control secondary steam equipment and steam pipe network, and then ensure the working effect of hydrophobic flash tank 1. The pressure sensor 6 can be referred to the prior art and will not be further described here.

As a preferable technical solution, an inspection manhole 9 is provided on a side wall of the tank body 2. Through addding the maintenance manhole 9, when normally operating and maintaining, can get into personnel's operation through maintenance manhole 9. The manhole 9 is referred to the prior art and will not be further described herein.

As a preferred technical scheme, the drainage water inlet pipe 3 is integrally formed or connected by sequentially inserting and welding the head and the tail of a plurality of sections of reducing pipes. In this embodiment, hydrophobic inlet tube 3 adopts 4 sections reducing pipe end to insert welded connection in proper order, section of making an uproar 31 includes 2 sections pipes, 1 section pipe is connected to the front end of section of making an uproar 31, buffer segment 32 is 1 section pipe, the pipe diameter of 1 section pipe of making an uproar 31 front end connection is less than the pipe diameter of 31 1 st section pipe of making an uproar, the pipe diameter of 31 1 st section pipe of making an uproar is less than the pipe diameter of 31 2 nd section pipe of making an uproar, the pipe diameter of 31 2 nd section pipe of making an uproar is less than the pipe diameter of buffer segment 32 pipe, can be convenient for insert welded connection like this and form whole hydrophobic inlet tube 3, adopt to insert the welding and connect, be convenient for processing and connect reliably, can satisfy actual operating mode better. In specific implementation, the drainage water inlet pipe 3 can also be manufactured by adopting an integral forming process, and the integral forming belongs to the prior art and is not specifically described herein.

The fixing manner or the fixing connection manner not described in this embodiment may be welding, or other existing connection manners may be adopted according to specific positions, and the welding belongs to the prior art, and is not specifically described herein.

The parts not referred to in the present embodiment are the same as or can be implemented by the prior art, and are not further described herein.

The skilled person should understand that: although the present invention has been described in terms of the above embodiments, the inventive concept is not limited to this embodiment, and any modification that utilizes the inventive concept is intended to be within the scope of the present patent application.

Claims

1. A hydrophobic flash tank, comprising: including a jar body and with jar hydrophobic inlet tube that links to each other, be equipped with gas vent and outlet on the jar body, hydrophobic inlet tube passes jar body and setting firmly on the jar body, the play water end and the intake end of hydrophobic inlet tube are located respectively the inside and outside both sides of jar body, hydrophobic inlet tube are including falling the section of making an uproar and be close to the play water end of hydrophobic inlet tube, and the aperture that hydrophobic inlet tube intake end was less than or equal to the aperture that falls the section of making an uproar intake end, fall and be equipped with the shoulder hole in the section of making an uproar, the shoulder hole increases along the rivers direction in proper order including the aperture in the multistage pore and each section pore that communicate in proper order.

2. The hydrophobic flash tank of claim 1, wherein: the water outlet end of the noise reduction section is a buffer section with a plurality of through holes arranged on the pipe wall.

3. The hydrophobic flash tank of claim 2, wherein: the noise reduction section is arranged in the tank body.

4. The hydrophobic flash tank of claim 1, wherein: the hydrophobic inlet tube is located the internal part of jar is the annular and presses close to the inner wall of the jar body.

5. The hydrophobic flash tank of claim 4, wherein: the inner wall of the tank body is fixedly provided with a spiral diversion trench, and the upper end of the diversion trench is connected with the water outlet end of the drain water inlet pipe.

6. The hydrophobic flash tank of any one of claims 1-5, wherein: the top of the tank body is provided with a cooling nozzle which is connected with a cooling water pipeline, and the tank body is also internally provided with a temperature probe which is positioned at the top of the tank body.

7. The hydrophobic flash tank of any one of claims 1-5, wherein: still be equipped with the liquid level probe just in the jar body the liquid level probe is located the bottom of the jar body.

8. The hydrophobic flash tank of any one of claims 1-5, wherein: still be equipped with pressure sensor just in the jar body pressure sensor is located the top of the jar body.

9. The hydrophobic flash tank of any one of claims 1-5, wherein: and the side wall of the tank body is provided with an inspection manhole.

10. The hydrophobic flash tank of any one of claims 1-5, wherein: the drainage water inlet pipe is integrally formed or connected by sequentially inserting and welding the head and the tail of a multi-section reducing pipe.