CN207716400U - The drainage system of continuous sewage-discharge volum expander for boiler - Google Patents
The drainage system of continuous sewage-discharge volum expander for boiler Download PDFInfo
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- CN207716400U CN207716400U CN201820004461.XU CN201820004461U CN207716400U CN 207716400 U CN207716400 U CN 207716400U CN 201820004461 U CN201820004461 U CN 201820004461U CN 207716400 U CN207716400 U CN 207716400U
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Abstract
The utility model discloses a kind of drainage systems of continuous sewage-discharge volum expander for boiler, it includes continuous blowdown flash tank, continuous blowdown flash tank side is equipped with liquid level gauge, the spent hot water of continuous blowdown flash tank is exported on the pipeline between regular unloading container is equipped with restricting orifice, regulating valve and waste heat water valve successively, the drain port of continuous blowdown flash tank is connected to by drain water piping with regulating valve to the pipeline between regular unloading container, and drain water piping is equipped with drain valve.The utility model has the advantage of restricting orifice generates throttling action to flowing through its spent hot water, and the liquid level in continuous blowdown flash tank is made to keep in a certain range, avoiding indirect steam from being discharged with spent hot water, improving the recovery utilization rate of indirect steam；Drain port is located at the 300mm liquid levels of continuous blowdown flash tank, and when liquid level is less than 300mm, drain valve is to close；When liquid level is more than 300mm, drain valve is opened, and ensure that the blowdown of continuous sewage-discharge volum expander for boiler is unobstructed.
Description
Technical field：
The utility model is related to boiler auxiliary device technical fields, and in particular to a kind of row of continuous sewage-discharge volum expander for boiler
Water system.
Background technology：
During the use of boiler, the waste water of boiler discharge is carrying out waste water due to being also equipped with certain steam energy
By to use blowdown system during energy regenerating, blowdown system is broadly divided into continuous blowdown flash tank and periodically
The continuous blowdown mouth of two kinds of blowdown system, continuous blowdown flash tank and boiler connects, and is used for depressurizing the continuous blowdown of boiler
Dilatation, sewerage adiabatic expansion in continuous blowdown flash tank are separated into indirect steam and spent hot water, and through dilatation, be depressured, change
After heat, indirect steam enters oxygen-eliminating device, and door enters regular unloading container to spent hot water after the adjustment, and the energy is recycled recycling.
Currently, being had the following problems in the drainage procedure of continuous blowdown flash tank：Continuous blowdown flash tank is arranged to regular
Adjusting door leakage current amount on pipeline between dirty flash vessel is larger, and spent hot water's amount of storage in continuous blowdown flash tank, which is less than, to be adjusted
Door leakage current amount so that platoon flash vessel is unable to maintain that liquid level, and longtime running, not only the thermal energy of a large amount of continuous blowdown spent hot waters can not
Recycling causes waste, and the safe operation for returning continuous blowdown flash tank brings certain threat.
Utility model content：
The purpose of this utility model is to provide a kind of water level can effectively ensure that spent hot water in continuous blowdown flash tank,
Improve the drainage system of the continuous sewage-discharge volum expander for boiler of the indirect steam recovery utilization rate in continuous blowdown flash tank.
The utility model is implemented by following technical solution：The drainage system of continuous sewage-discharge volum expander for boiler comprising continuous
Blowdown system, the continuous blowdown flash tank side are equipped with liquid level gauge, and the waste heat water out of the continuous blowdown flash tank is logical
Piping is connected to the water inlet of regular unloading container, and the spent hot water is exported to the pipe between the regular unloading container
Regulating valve and waste heat water valve are equipped on road successively, the spent hot water is exported to the pipeline between the regulating valve and is equipped with throttle orifice
Plate, the continuous blowdown flash tank side wall are equipped with drain port, and the drain port passes through drain water piping and the regulating valve to institute
The pipeline connection between regular unloading container is stated, the drain water piping is equipped with drain valve, the drain valve inlet side
On the drain water piping and it is respectively equipped with manually-operated gate on the drain water piping of the hydrophobic valve outlet side.
Further, the diameter d of the throttle orifice of the restricting orifice is 1.5mm.
Further, the drain port is located at the 300mm liquid levels of the continuous blowdown flash tank.
Further, the restricting orifice to the pipeline between the regulating valve is equipped with the first valve, the regulating valve
Pipeline between to the waste heat water valve is equipped with the second valve, and the restricting orifice is logical to the pipeline between first valve
It crosses maintenance branch to be connected to second valve to the pipeline between the waste heat water valve, the maintenance branch road is equipped with service valve
Door.
The advantages of the utility model：1, it is exported on the pipeline between regulating valve and sets in the spent hot water of continuous blowdown flash tank
There is restricting orifice, throttling action is generated to the spent hot water of waste heat water out discharge, the liquid level in continuous blowdown flash tank is made to keep
In a certain range, it avoids indirect steam from being discharged with spent hot water, improves the recovery utilization rate of indirect steam；2, drain water piping
Drain port is located at the 300mm liquid levels of continuous blowdown flash tank, and when liquid level is less than 300mm, drain valve is to close, secondary
Steam will not be leaked out from drain water piping；When liquid level is more than 300mm, drain valve is opened, useless in continuous blowdown flash tank
Hot water is discharged from drain water piping, so that liquid level is declined, is maintained at 300mm, ensure that the blowdown of boiler is unobstructed.
Description of the drawings：
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, other drawings may also be obtained based on these drawings.
Fig. 1 is the connection diagram of the utility model；
Fig. 2 is the restricting orifice structural schematic diagram of the utility model.
Continuous blowdown flash tank 1, liquid level gauge 2, waste heat water out 3, regular unloading container 4, regulating valve 5, waste heat water valve
6, restricting orifice 7, drain port 8, drain water piping 9, drain valve 10, the first valve 11, the second valve 12, maintenance branch 13, maintenance
Valve 14, manually-operated gate 15.
Specific implementation mode：
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment 1：
As shown in Figs. 1-2, the drainage system of continuous sewage-discharge volum expander for boiler comprising continuous blowdown flash tank 1, it is continuous to arrange
1 side of dirty flash vessel is equipped with liquid level gauge 2；The waste heat water out 3 of continuous blowdown flash tank 1 passes through pipeline and regular unloading container
4 water inlets are connected to, and are equipped with regulating valve 5 and waste heat water valve on waste heat water out 3 to the pipeline between regular unloading container 4 successively
6；Waste heat water out 3 to the pipeline between regulating valve 5 is equipped with restricting orifice 7, and the diameter d of the throttle orifice of restricting orifice 7 is
1.5mm, restricting orifice 7 are used to slow down the rate of outflow of spent hot water in continuous blowdown flash tank 1, make in continuous blowdown flash tank 1
Keep certain liquid level；Restricting orifice 7 to the pipeline between regulating valve 5 is equipped with the first valve 11, regulating valve 5 to waste heat water valve
Pipeline between 6 is equipped with the second valve 12；Pipeline between 7 to the first valve 11 of restricting orifice is by overhauling branch 13 and the
Two valves 12 to the pipeline connection between waste heat water valve 6, maintenance branch 13 is equipped with maintenance valve 14；
1 side wall of continuous blowdown flash tank is equipped with drain port 8, and drain port 8 is located at the 300mm liquid of continuous blowdown flash tank 1
At position, drain port 8 is connected to by drain water piping 9 with regulating valve 5 to the pipeline between regular unloading container 4, on drain water piping 9
Equipped with drain valve 10, exported on the drain water piping 9 of side respectively with drain valve 10 on the drain water piping 9 of 10 inlet side of drain valve
Equipped with manually-operated gate 15.Drain valve 10 in the present embodiment is the float type steam trap of CS41H-16C models, and nominal diameter is
25mm；The model J41H-25 of manually-operated gate 15, nominal diameter 25mm.
Operation principle：
The continuous blowdown water of boiler enters in continuous blowdown flash tank 1, and sewerage is adiabatic swollen in continuous blowdown flash tank 1
It is swollen to be separated into indirect steam and spent hot water, and after dilatation, decompression, heat exchange, outlet of the indirect steam from continuous blowdown flash tank 1
Mouth enters oxygen-eliminating device, and spent hot water is discharged from waste heat water out 3, and when by restricting orifice 7, restricting orifice 7 generates one to spent hot water
Fixed resistance makes the liquid level in continuous blowdown flash tank 1 be maintained at certain model by spent hot water's discharge reduction of restricting orifice 7
In enclosing, avoids indirect steam from being discharged with spent hot water, improve the recovery utilization rate of indirect steam；After spent hot water flows through regulating valve 5,
Water is further reduced, and finally drains into regular unloading container 4.
When the liquid level in continuous blowdown flash tank 1 is more than 8 height of drain port, spent hot water enters drain water piping 9, drain valve
10 open, and spent hot water is discharged by drain water piping 9, into regular unloading container 4；Under liquid level in continuous blowdown flash tank 1
Drop, when dropping to 8 lower section of drain port, without spent hot water in drain valve 10 to the pipeline between drain port 8, is filled with indirect steam,
Drain valve 10 is closed；When drain valve 10 breaks down, two manually-operated gates 15 are closed, drain valve 10 is overhauled, overhauled
After open two manually-operated gates 15, drain valve 10 work normally.
When regulating valve 5 breaks down, the first valve 11 and the second valve 12 are closed, and maintenance valve 14 is opened, to adjusting
Valve 5 is overhauled, and spent hot water enters maintenance branch 13 after flowing through restricting orifice 7, enters periodical blowdown expansion by overhauling branch 13
Container 4；After regulating valve 5 is overhauled, the first valve 11, the second valve 12 and regulating valve 5 are opened, and maintenance valve 14 is closed, and is given up
Hot water enters regular unloading container 4 after the discharge of waste heat water out 3 by 5 place pipeline of regulating valve.
It is transformed using the drainage system of the continuous blowdown flash tank 1 of No. 6 units of the application couple, to install restricting orifice
7 and increase drain water piping 9 after continuous blowdown flash tank 1 drainage system be test group, not install restricting orifice 7 and not increase
It is control group, the continuous blowdown dilatation to test group and control group to add the drainage system of the continuous blowdown flash tank 1 of drain water piping 9
Liquid level in device 1 is detected, testing result such as table 1.
1 experimental group of table and the level sensing result in control group continuous blowdown flash tank
From table 1 it follows that the drainage system installation restricting orifice 7 and increase drain water piping 9 of continuous blowdown flash tank 1
Afterwards, the liquid level in continuous blowdown flash tank 1 floats little close to 300mm, avoids indirect steam from being discharged with spent hot water, improve
The recovery utilization rate of indirect steam after being transformed to the drainage system of every continuous blowdown flash tank 1, can be saved into for 1 year
This 200,000.And platoon flash vessel is run in the case where there is liquid level condition, improves the safety of flash vessel.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
Within the spirit and principle of utility model, any modification, equivalent replacement, improvement and so on should be included in the utility model
Protection domain within.
Claims (4)
1. the drainage system of continuous sewage-discharge volum expander for boiler comprising continuous blowdown flash tank, the continuous blowdown flash tank one
Side is equipped with liquid level gauge, and the waste heat water out of the continuous blowdown flash tank is connected by the water inlet of pipeline and regular unloading container
Logical, the spent hot water is exported on the pipeline between the regular unloading container is equipped with regulating valve and waste heat water valve successively,
It is characterized in that, the spent hot water is exported to the pipeline between the regulating valve and is equipped with restricting orifice, the continuous blowdown dilatation
Device side wall is equipped with drain port, and the drain port is by drain water piping and the regulating valve between the regular unloading container
Pipeline connection, the drain water piping is equipped with drain valve, on the drain water piping of the drain valve inlet side and described
It is respectively equipped with manually-operated gate on the drain water piping of hydrophobic valve outlet side.
2. the drainage system of continuous sewage-discharge volum expander for boiler according to claim 1, which is characterized in that the restricting orifice
Throttle orifice diameter d be 1.5mm.
3. the drainage system of continuous sewage-discharge volum expander for boiler according to claim 1 or 2, which is characterized in that described hydrophobic
Mouth is located at the 300mm liquid levels of the continuous blowdown flash tank.
4. the drainage system of continuous sewage-discharge volum expander for boiler according to claim 1, which is characterized in that the restricting orifice
Pipeline between to the regulating valve is equipped with the first valve, and the regulating valve to the pipeline between the waste heat water valve is equipped with
Second valve, the restricting orifice to the pipeline between first valve is by overhauling branch and second valve to described
Pipeline connection between waste heat water valve, the maintenance branch road are equipped with maintenance valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820004461.XU CN207716400U (en) | 2018-01-02 | 2018-01-02 | The drainage system of continuous sewage-discharge volum expander for boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820004461.XU CN207716400U (en) | 2018-01-02 | 2018-01-02 | The drainage system of continuous sewage-discharge volum expander for boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207716400U true CN207716400U (en) | 2018-08-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820004461.XU Active CN207716400U (en) | 2018-01-02 | 2018-01-02 | The drainage system of continuous sewage-discharge volum expander for boiler |
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| CN (1) | CN207716400U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532946A (en) * | 2018-11-28 | 2019-03-29 | 中车青岛四方机车车辆股份有限公司 | A kind of electric water boiler and electric water boiler group of rail vehicle |
-
2018
- 2018-01-02 CN CN201820004461.XU patent/CN207716400U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109532946A (en) * | 2018-11-28 | 2019-03-29 | 中车青岛四方机车车辆股份有限公司 | A kind of electric water boiler and electric water boiler group of rail vehicle |
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