CN214370119U - Novel flower disc spray type high-efficiency deaerator - Google Patents

Abstract

The novel flower disc spray type high-efficiency deaerator comprises a deaerator body, wherein at least two condensed water inlets are formed in the deaerator body, and the condensed water inlets are connected with a flower disc type spray spraying assembly; be equipped with steam inlet on the oxygen-eliminating device body, steam inlet is connected with steam dispersion devices, and steam is from discharging into this internal through steam dispersion devices under water the oxygen-eliminating device, and this internal upper portion of oxygen-eliminating device is equipped with big baffle, and the lower part is equipped with little baffle. The deoxidization head is cancelled in the structure, and the work of deoxidization can be accomplished in the water tank, has reduced the whole height of equipment. The water tank is internally provided with a plurality of different stainless steel nozzles for outputting power according to different deaerators, condensed water forms water mist through the nozzles, oxygen and non-condensable gas in the condensed water are separated out, and preliminary deoxidization is completed. The steam is sprayed out from the steam admission dispersion device below the liquid surface and is fully mixed with the condensed water which completes the preliminary deoxidization, and finally the deep deoxidization is realized.

Description

Novel flower disc spray type high-efficiency deaerator

Technical Field

The utility model relates to a deaerator technical field, in particular to novel flower disc atomizing high-efficient deaerator.

Background

The deaerator is an important auxiliary device of a thermal power plant, and utilizes a steam turbine to extract steam to heat boiler feed water, so that the boiler water reaches the saturation temperature under the pressure, gases such as oxygen in the feed water are removed, the boiler corrosion is prevented, the service life of the boiler is prolonged, an important role is played in the safe operation of the power plant, meanwhile, the deaerator is a loop of a steam turbine system regenerative feed water heater, the heat efficiency of the power plant can be improved, and an important role is played in the economic operation of the power plant. With the increase of newly-built power plants and the increasing demand of central heating, the application of deaerators in various forms is more and more extensive, and the deaerator becomes indispensable medium and hard equipment in a system.

The deaerator commonly used in the power plant at the present stage is a thermal deaerator, and mainly makes water directly contact with steam and be heated to the saturation temperature under the working pressure or make the water partially vaporized by methods of atomization, water sprinkling and the like according to the principles of Henry's law and Dalton's law, so as to remove dissolved oxygen and other gases in the water and provide water supply equipment reaching the specified oxygen content.

The conventional deaerator adopts welding connection between a deaerator head and a water tank, so that stress cracks, namely stress concentration, inevitably exist. The conventional deaerator has relatively poor anti-vibration effect because the deaerator head is welded on the upper part of the water tank, the overall height is high, and stress exists between the deaerator head and the water tank.

SUMMERY OF THE UTILITY MODEL

For overcoming the problem that exists among the prior art, the utility model provides a novel high-efficient oxygen-eliminating device of flower disc atomizing.

The utility model provides a technical scheme that its technical problem adopted is: the novel flower disc spray type efficient deaerator comprises a deaerator body, wherein at least two condensed water inlets are formed in the deaerator body and are connected with a flower disc type spray spraying assembly; be equipped with steam inlet on the oxygen-eliminating device body, steam inlet is connected with steam dispersion devices, and steam is from discharging into this internal through steam dispersion devices under water the oxygen-eliminating device, and this internal upper portion of oxygen-eliminating device is equipped with big baffle, and the lower part is equipped with little baffle.

Further, the flower disc type spraying and spraying assembly comprises a condensed water inlet pipe, the condensed water inlet pipe is connected with the annular pipe through a plurality of distribution pipes, and water spray holes are formed in the distribution pipes and the annular pipe.

Further, the flower disc type spraying and spraying assembly comprises a condensed water inlet pipe, the condensed water inlet pipe is connected with the annular pipe through a plurality of distribution pipes, the annular pipe is a circular ring pipe, the inner side of the annular pipe is communicated with the condensed water inlet pipe through the plurality of distribution pipes, and a nozzle is uniformly distributed on the annular pipe in a circle.

Furthermore, the steam inlet is connected and communicated with a transverse steam pipe through a steam inlet pipe, a plurality of steam dispersion pipes are densely distributed along the axial direction of the steam pipe, and steam holes are densely distributed on the steam dispersion pipes.

Furthermore, at least two rows of steam dispersion pipes are arranged on the steam pipe.

Furthermore, the small baffles are two and are respectively installed at two ends of the steam pipe, the small baffles are semicircular plates and welded on the inner wall of the bottom of the deaerator body, and the small baffles are installed between the end part of the steam end and the water outlet of the deaerator.

Furthermore, the large baffle is welded on the inner wall of the deaerator body and is installed at the center of the deaerator body.

To sum up, the utility model discloses an above-mentioned technical scheme's beneficial effect as follows:

1. the deaerator nozzle is easy to detach, clean and replace, and convenient to overhaul and replace.

2. The steam is sent from the water, so that the integral working temperature level of the deaerator is reduced, and the metal thermal fatigue life is prolonged.

3. A baffle is arranged near the water outlet of the water tank to prevent steam bubbles from entering the water feeding pump to cause cavitation of the pump.

4. The deoxidizing head is cancelled, only the water tank is reserved, and the stress concentration at the position of the water tank and the deoxidizing head is avoided.

5. Simple structure and excellent shock resistance.

6. Greatly reducing the consumption of the materials of the heat preservation and maintenance platform.

Drawings

Fig. 1 is a front view of the present invention.

Fig. 2 is a side view of the present invention.

Fig. 3 is a bottom view of the faceplate spray assembly.

Fig. 4 is a structural view of a vapor dispersion pipe.

Fig. 5 is a transverse cross-sectional view of the vapor dispersion tube.

Fig. 6 is a structural view of a large baffle.

Fig. 7 is a structural view of a small baffle.

In the figure:

the deaerator comprises a deaerator body 1, a water tank 2, a condensed water inlet 3, a condensed water inlet pipe 4, a distribution pipe 5, a ring pipe 6, a nozzle 7, a steam inlet 8, a steam inlet pipe 9, a steam pipe 10, a dispersion pipe 11, a steam hole 12, a large baffle 13, a small baffle 14 and a water outlet 15.

Detailed Description

The features and principles of the present invention will be described in detail below with reference to the accompanying drawings, and the illustrated embodiments are only for explaining the present invention, and do not limit the scope of the present invention.

The product is a brand-new novel flower disc spray type high-efficiency deaerator, and can ensure that the deaerating effect of equipment is better under the condition of not consuming excessive steam quantity of a heating system. The equipment can be operated within the range of 10-110%, the reliable operation of a unit under severe working conditions is ensured, and the oxygen content of effluent can be ensured to be below 7 ppb. And the conventional deaerator can only reach about 15 ppb. The oxygen content and other gas content in water can be reduced, the stable operation of a heat supply system and a boiler is ensured, and the service life of the boiler and a heat supply pipeline is prolonged.

As shown in fig. 1 and fig. 2, the utility model discloses the high-efficient oxygen-eliminating device of flower disc atomizing mainly adopts following structure to realize: the device comprises a water tank 2, a stainless steel flower disc type spraying and spraying assembly, a large baffle 13, a small baffle 14, a steam inlet dispersing device and the like. Steam is extracted from the system and enters the bottom of the deaerator through the steam inlet dispersing device; the condensed water enters the water tank 2 in a spray form through a plurality of stainless steel spray nozzles 7, and then is fully mixed with the water in the spray form through the baffling effect of the large and small baffles 14, and the oxygen and the non-condensed gas are discharged from the top through turbulent heat exchange.

Specifically, be equipped with two at least condensate inlets 3 on the oxygen-eliminating device body 1, condensate inlet 3 is connected with flower disc formula spraying subassembly through condensate inlet tube 4. Flower disc formula spraying sprays subassembly includes condensate inlet tube 4, and condensate inlet tube 4 all is equipped with the hole for water spraying on distributor 5 and the annular duct 6 through a plurality of distributor pipes 5 and annular duct 6 connection, and the hole for water spraying is passed through to the condensate.

As shown in fig. 3, perhaps, the assembly is sprayed in colored disc formula spraying includes condensate inlet tube 4, and condensate inlet tube 4 is connected with ring pipe 6 through a plurality of distributing pipes 5, ring pipe 6 is the ring pipe, and the inboard of ring pipe 6 is communicated with condensate inlet tube 4 through a plurality of distributing pipes 5, and 6 round equipartitions of ring pipe have nozzle 7.

Above, the condensed water inlet pipe 4, the distribution pipe 5, the annular pipe 6 and the nozzle 7 are made of stainless steel.

As shown in fig. 1 and 2, a steam inlet 8 is formed in the deaerator body 1, the steam inlet 8 is connected with a steam dispersing device, steam is discharged into the deaerator body 1 through the steam dispersing device from the water, a large baffle 13 is arranged on the upper portion in the deaerator body 1, and a small baffle 14 is arranged on the lower portion. The steam inlet 8 is connected and communicated with a transverse steam pipe 10 through a steam inlet pipe 9, a plurality of steam dispersion pipes 11 are densely distributed along the axial direction of the steam pipe 10, and steam holes 12 are densely distributed on the steam dispersion pipes 11 (fig. 4 and 5). The steam pipe 10 is provided with at least two rows of steam dispersion pipes 11.

As shown in fig. 7, the number of the small baffles 14 is two, the small baffles 14 are respectively installed at two ends of the steam pipe 10, the small baffles 14 are semicircular plates and welded on the inner wall of the bottom of the deaerator body 1, and the small baffles 14 are installed between the end of the steam end and the deaerator water outlet 15. As shown in fig. 6, the large baffle 13 is welded on the inner wall of the deaerator body 1 and is installed at the center of the deaerator body 1. The condensed water enters the water tank 2 in a spray form through a plurality of stainless steel spray nozzles 7, and then is fully mixed with the water in the spray form through the baffling effect of the large and small baffles 14, and the oxygen and the non-condensed gas are discharged from the top through turbulent heat exchange.

The deoxidization head is cancelled in the structure, and the work of deoxidization can be accomplished in water tank 2, has reduced the whole height of equipment. The stainless steel nozzle 7 that a plurality of differences were exerted oneself is set up according to the deaerator difference of exerting oneself inside water tank 2, and the condensate water passes through nozzle 7 and forms the water smoke, makes the oxygen in the condensate water and noncondensable gas appear, accomplishes preliminary deoxidization. The steam is sprayed out from the steam admission dispersion device below the liquid surface and is fully mixed with the condensed water which completes the preliminary deoxidization, and finally the deep deoxidization is realized. The big baffle and the small baffle enable the condensate water of preliminary deoxidization to realize turbulent flow, the condensate water is mixed more uniformly with the steam entering from the bottom, and the heat transfer is more effective.

The above-mentioned embodiments are merely illustrative of the preferred embodiments of the present invention, and are not intended to limit the scope of the present invention, and various modifications and improvements of the present invention may be made by those skilled in the art without departing from the spirit of the present invention, which is defined by the appended claims.

Claims (7)

1. The novel flower disc spray type high-efficiency deaerator comprises a deaerator body and is characterized in that at least two condensed water inlets are formed in the deaerator body, and the condensed water inlets are connected with a flower disc type spray spraying assembly; be equipped with steam inlet on the oxygen-eliminating device body, steam inlet is connected with steam dispersion devices, and steam is from discharging into this internal through steam dispersion devices under water the oxygen-eliminating device, and this internal upper portion of oxygen-eliminating device is equipped with big baffle, and the lower part is equipped with little baffle.

2. The novel disc-flower spray type high-efficiency deaerator as claimed in claim 1, wherein the disc-flower spray type spray spraying assembly comprises a condensed water inlet pipe, the condensed water inlet pipe is connected with an annular pipe through a plurality of distribution pipes, and the distribution pipes and the annular pipe are provided with water spray holes.

3. The novel disc flower spray type high-efficiency deaerator as claimed in claim 1, characterized in that the disc flower spray type spray spraying assembly comprises a condensed water inlet pipe, the condensed water inlet pipe is connected with a ring pipe through a plurality of distribution pipes, the ring pipe is a circular ring pipe, the inner side of the ring pipe is communicated with the condensed water inlet pipe through a plurality of distribution pipes, and nozzles are uniformly distributed in a circle of the ring pipe.

4. The novel flower disc spray type high-efficiency deaerator is characterized in that a steam inlet is connected and communicated with a transverse steam pipe through a steam inlet pipe, a plurality of steam dispersion pipes are densely distributed along the axial direction of the steam pipe, and steam holes are densely distributed on the steam dispersion pipes.

5. The novel flower disc spray type high-efficiency deaerator is characterized in that at least two rows of steam dispersion pipes are arranged on the steam pipe.

6. The novel flower disc spray type high-efficiency deaerator is characterized in that the number of the small baffles is two, the small baffles are respectively installed at two ends of the steam pipe, the small baffles are semicircular plates and welded on the inner wall of the bottom of the deaerator body, and the small baffles are installed between the end part of the steam end and a deaerator water outlet.

7. The novel flower disc spray type high-efficiency deaerator as claimed in claim 1, wherein the large baffle is welded to the inner wall of the deaerator body and is mounted at the center of the deaerator body.

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