CN213178287U - Flash steam recovery system of boiler fixed-row flash evaporator - Google Patents

Abstract

The application relates to a flash steam recovery system of a boiler fixed-row flash tank, belonging to the field of electric boilers, comprising a spraying tank, wherein the spraying tank is communicated with the fixed-row flash tank through a flash steam pipe, and flash steam in the fixed-row flash tank enters the spraying tank through the flash steam pipe; the water supply unit is connected with the spraying tank through a first water pipe, and the installation height of the first water pipe on the spraying tank is higher than that of the flash steam pipe on the spraying tank; spray the jar and introduce the jar of spraying with the flash distillation steam pipe through the setting for flash distillation steam gets into and sprays the jar, utilizes the water that sprays in the jar and the collision of inside flash distillation steam, and the cooling condenses to flash distillation steam, realizes the recovery of flash distillation steam, has reduced the waste of flash distillation steam water resource, can also reduce because of the lower influence that causes flash distillation steam to condense in the atmosphere and produce near farmland of outside temperature.

Description

Flash steam recovery system of boiler fixed-row flash evaporator

Technical Field

The utility model relates to an electric power boiler technical field especially relates to flash distillation vapour recovery system of flash vessel is arranged surely to boiler.

Background

The boiler constant-discharge flash tank is a part for periodically discharging sewage from a boiler, separating secondary flash steam and waste hot water through decompression and expansion, discharging the flash steam from an outlet at the top of the constant discharge, and discharging the remained sewage through a water level regulating valve. At present, flash steam exhausted by a boiler fixed-discharge flash tank is generally directly exhausted into the atmosphere, which not only causes waste of water resources in the flash steam; moreover, the direct discharge into the atmosphere may cause pollution to the atmosphere, and the discharge of the flash steam into the atmosphere may cause a large amount of moisture in the atmosphere near the discharge port, and the moisture may easily condense into water droplets under the condition of low outside air temperature, which may affect nearby farmlands, breeding, and the like.

SUMMERY OF THE UTILITY MODEL

This application is in order to solve the problem of the thermal waste that the atmosphere caused is directly discharged into to the flash distillation vapour in the flash distillation vapour of arranging the flash vessel surely in the current boiler, in addition, still can be because directly discharge into near farmland of atmosphere influence etc. this application design one kind and can solve above-mentioned problem about flash distillation vapour recovery system of boiler arranging the flash distillation vapour certainly, specifically do:

flash steam recovery system of flash vessel is arranged surely to boiler includes:

the spraying tank is communicated with the fixed-discharge flash tank through a flash steam pipe, and flash steam in the fixed-discharge flash tank enters the spraying tank through the flash steam pipe;

the water supply unit is connected with the spraying tank through a first water pipe, and the installation height of the first water pipe on the spraying tank is higher than that of the flash steam pipe on the spraying tank.

Preferably, first water pipe sets up many, and many first water pipes set up respectively between water supply unit and the spraying tank, and many first water pipes interval setting about the mounted position of spraying the tank.

Preferably, a plurality of water distribution plates are horizontally arranged in the spraying tank, water holes are formed in each water distribution plate, the water distribution plates are arranged in the spraying tank at intervals, and the water distribution plates and the first water pipes are arranged at intervals at the upper part and the lower part of the installation position of the spraying tank.

Preferably, the water passing holes on the water distribution plates are arranged in a vertically staggered manner.

Preferably, the water supply unit includes:

a water supply tank;

the water pump is connected to the first water pipe.

Preferably, the first water pipe is further provided with a first switch valve and a first filter.

Preferably, the method further comprises the following steps:

the water storage tank is communicated with the spraying tank through a second water pipe.

Preferably, the water storage tank is provided with a liquid level meter.

Preferably, the water storage tank is connected with a third water pipe, and the third water pipe is provided with a second switch valve and a second filter.

Preferably, the water storage tank is also provided with a drain pipe, and the drain pipe is provided with a third switch valve.

The utility model discloses a setting is sprayed the jar and is introduced the flash distillation vapour pipe and spray the jar for flash distillation vapour gets into and sprays the jar, utilizes the water that sprays in the jar and the collision of inside flash distillation vapour, and the cooling condenses to flash distillation vapour, realizes the recovery of flash distillation vapour, has reduced the waste of flash distillation vapour water resource, can also reduce because of the lower influence that causes flash distillation vapour to condense in the atmosphere and produce near farmland of external temperature.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

In the figure, 1, a water supply unit, 101, a water supply tank, 102, a water pump, 2, a first water pipe, 201, a main pipe, 202, a branch pipe, 3, a first switch valve, 4, a first filter, 5, a water distribution plate, 6, a spraying tank, 7, a water passing hole, 8, an air outlet pipe, 9, a flash steam pipe, 10, a second water pipe, 11, a water storage tank, 12, a third water pipe, 13, a second filter, 14, a second switch valve, 15, a liquid level meter, 16, a third switch valve, 17 and a sewage discharge pipe.

Detailed Description

In order to clearly illustrate the technical features of the present invention, the present invention is explained in detail by the following embodiments with reference to the accompanying drawings.

In addition, in the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate orientations and positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

As shown in figure 1, the flash steam recovery system of the fixed-row flash evaporator of the boiler comprises a spraying tank 6 and a water supply unit 1. Wherein, the spraying tank 6 is communicated with the fixed discharge flash tank through a flash steam pipe 9, and the flash steam in the fixed discharge flash tank enters the spraying tank 6 through the flash steam pipe 9; the water supply unit 1 is connected with the spraying tank 6 through the first water pipe 2, and the installation height of the first water pipe 2 on the spraying tank 6 is higher than that of the flash steam pipe 9 on the spraying tank 6.

From the water that first water pipe 2 got into in spraying jar 6 spraying from last down, in the in-process of spraying with the flash distillation vapour collision of the 9 inputs of flash distillation vapour pipe, cool down the flash distillation vapour for the flash distillation vapour condensation is water, reach the purpose that flash distillation vapour was retrieved, flash distillation vapour is retrieved the back, the air in spraying jar 6 is extruded, discharge through outlet duct 8, the flash distillation vapour through retrieving is through spraying jar 6 recovery, prevent that flash distillation vapour from directly discharging to the atmosphere in, cause the waste of water resource, the water resource of recovery can further utilize it.

Further, first water pipe 2 sets up many, in this embodiment, first water pipe 2 specifically sets up four, and four first water pipes 2 are connected respectively between water supply unit 1 and spraying jar 6, and four first water pipes 2 are spraying jar 6 mounted position and are spraying jar upper and lower orientation interval setting in, set up a plurality of water pipes and supply water to spraying jar 6 in to form the multichannel barrier in upper and lower direction, increase and the area of contact of flash distillation vapour, improve the recovery effect to the flash distillation vapour.

Further, in order to further improve the recovery effect of flash steam, a plurality of water distribution plates 5 are horizontally arranged in the spraying tank 6, each water distribution plate 5 is provided with a water through hole 7, the plurality of water distribution plates 5 are arranged in the spraying tank 6 at intervals from top to bottom, the plurality of water distribution plates 5 and the plurality of first water pipes 2 are arranged at intervals from top to bottom at the installation position of the spraying tank 6, the plurality of water distribution plates 5 are arranged at intervals from top to bottom to enable water entering the spraying tank 6 to form a water curtain, the contact area of the flash steam is increased, and the recovery effect of the flash steam is improved.

Furthermore, the water passing holes 7 on each water distribution plate 5 are arranged in a vertically staggered manner, and the staggered arrangement is used for enabling the water curtain area of the water flow which diffuses outwards to be larger and preventing the phenomenon that part of flash steam can not collide with the water flow and is directly discharged.

Further, the water supply unit 1 includes a water supply tank 101 and a water pump 102, and the water supply tank 101 and the water pump 102 are directly purchased from the market, and the mechanism thereof is prior art, and therefore, the detailed description thereof will not be provided. The water pump 102 is connected with the first water pipe 2, the first water pipe 2 is provided with the first switch valve 3 and the first filter 4, the first switch valve 3 can control the on-off of the first water pipe 2, the first filter 4 filters water entering the spraying tank 6, more scales are deposited in the spraying tank 6, and the water distribution plate 5 is prevented from being blocked.

In one embodiment, a pressure gauge may be further disposed on the first water pipe 2 for detecting the pressure of the water in the first water pipe 2 to prevent the water pipe from being damaged due to an excessive pressure in the first water pipe 2.

Four to the above-described first water pipes 2 may be provided, four being provided respectively from the water supply tank 101 to the spray tank 6, and the first switching valve 3 and the first filter 4 are provided respectively on each first water pipe 2.

Alternatively, it is also possible to arrange that the first water pipe 2 includes a main pipe 201 and four branch pipes 202, the main pipe 201 is connected to the water supply tank 101, and the four branch pipes 202 are connected to the main pipe 201 and the spray tank 6, respectively, wherein the first switching valve 3 and the first filter 4 are provided on the main pipe 201 while controlling the four branch pipes 202.

Alternatively, in the above-described embodiment, four first on-off valves 3 and four first filters 4 are provided respectively, and four first on-off valves 3 and four first filters 4 are provided respectively on the branch pipes 202, and the branch pipes 202 are controlled respectively.

Alternatively, in the above embodiment, the first on-off valve 3 may be provided on the main pipe 201 and the branch pipe 202, the first filter 4 may be provided on the main pipe 201, the first on-off valve 3 on the main pipe 201 controls the on-off of the entire first water pipe 2, and the first on-off valves 3 on the branch pipes 202 control the on-off of themselves, respectively.

Further, the device also comprises a water storage tank 11, wherein the water storage tank 11 is connected to the bottom of the spraying tank 6 through a second water pipe 10, and the water storage tank 11 can store inflow water and water generated by recovered flash steam for reuse.

Further, a liquid level meter 15 is arranged on the water storage tank 11, the water level in the water storage tank 11 is displayed through the liquid level meter 15, and when the liquid level in the water storage tank 11 reaches a drainage liquid level, drainage of the water storage tank 11 is controlled.

The water discharge of the water storage tank 11 is realized through a third water pipe 12 connected to the bottom of the water storage tank 11, a second switch valve 14 and a second filter 13 are arranged on the third water pipe 12, a third switch valve 16 controls the on-off of the third water pipe 12, when the water level in the water storage tank 11 detected by a liquid level meter 15 reaches the water discharge liquid level, the third switch valve 16 is opened to discharge the water inside, and the second filter 13 filters the water while discharging, so that the cleanness degree of the water during reuse is improved.

Further, because the inside of the sewage discharge pipe 17 is remained with more dirt after the water storage tank 11 is used for a period of time, in order to remove the inside dirt, the bottom of the water storage tank 11 is also provided with the sewage discharge pipe 17, the sewage discharge pipe 17 is provided with the third switch valve 16, and when the sewage is required to be discharged, the third switch valve 16 is opened to discharge the inside dirt.

The first on-off valve 3, the second on-off valve 14, and the third on-off valve 16 are commercially available directly, and may be gate valves or butterfly valves, which may be manual, electromagnetic, or electric, and the internal structure thereof will not be described.

The above-mentioned specific embodiments can not be regarded as the restriction to the scope of protection of the utility model, to technical personnel in this technical field, it is right the utility model discloses any replacement improvement or transform that embodiment made all fall within the scope of protection of the utility model.

The parts of the present invention not described in detail are the known techniques of those skilled in the art.

Claims (10)

1. Flash steam recovery system of flash vessel is arranged surely to boiler, its characterized in that includes:

the spraying tank is communicated with the fixed-discharge flash tank through a flash steam pipe, and flash steam in the fixed-discharge flash tank enters the spraying tank through the flash steam pipe;

the water supply unit, the water supply unit through first water pipe with spray the jar and connect, first water pipe is in spray the mounting height on the jar and be higher than the flash pipe is in spray the mounting height on the jar.

2. The flash steam recovery system of the boiler fixed-row flash evaporator according to claim 1, wherein the first water pipes are provided in plural numbers, the plural first water pipes are respectively provided between the water supply unit and the spray tank, and the plural first water pipes are arranged at intervals up and down at an installation position of the spray tank.

3. The flash steam recovery system of the boiler fixed-row flash tank of claim 2, wherein a plurality of water distribution plates are horizontally arranged in the spraying tank, water passing holes are formed in each water distribution plate, the water distribution plates are arranged in the spraying tank at intervals up and down, and the water distribution plates and the first water pipes are arranged in the spraying tank at intervals up and down.

4. The flash steam recovery system of the fixed-row flash tank of the boiler as claimed in claim 3, wherein the water holes of each water distribution plate are arranged in a staggered manner.

5. The flash vapor recovery system of a fixed-displacement flash tank of a boiler according to claim 1, wherein the water supply unit comprises:

a water supply tank;

and the water pump is connected to the first water pipe.

6. The flash steam recovery system of the boiler fixed-row flash evaporator according to claim 1 or 5, wherein the first water pipe is further provided with a first switch valve and a first filter.

7. The flash vapor recovery system of a fixed-displacement flash tank of a boiler of claim 1, further comprising:

and the water storage tank is communicated with the spraying tank through a second water pipe.

8. The flash vapor recovery system of a fixed-displacement flash tank of a boiler as claimed in claim 7, wherein the water storage tank is provided with a liquid level gauge.

9. The flash vapor recovery system of the flash evaporator of the fixed-displacement boiler as claimed in claim 7, wherein a third water pipe is connected to the water storage tank, and a second switch valve and a second filter are arranged on the third water pipe.

10. The flash steam recovery system of the fixed-displacement flash tank of the boiler as claimed in any one of claims 7 to 8, wherein a drain pipe is further provided on the water storage tank, and a third on/off valve is provided on the drain pipe.

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