CN209146731U - A kind of ammonia gas supplying device for thermal power plant - Google Patents
A kind of ammonia gas supplying device for thermal power plant Download PDFInfo
- Publication number
- CN209146731U CN209146731U CN201820658076.7U CN201820658076U CN209146731U CN 209146731 U CN209146731 U CN 209146731U CN 201820658076 U CN201820658076 U CN 201820658076U CN 209146731 U CN209146731 U CN 209146731U
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- Prior art keywords
- ammonia
- feed unit
- valve
- surge tank
- supplying device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 title claims abstract description 612
- 229910021529 ammonia Inorganic materials 0.000 claims abstract description 267
- 238000000034 method Methods 0.000 abstract description 3
- 230000006641 stabilisation Effects 0.000 abstract description 3
- 238000011105 stabilization Methods 0.000 abstract description 3
- 230000008020 evaporation Effects 0.000 abstract description 2
- 238000001704 evaporation Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- FGIUAXJPYTZDNR-UHFFFAOYSA-N potassium nitrate Chemical compound [K+].[O-][N+]([O-])=O FGIUAXJPYTZDNR-UHFFFAOYSA-N 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 238000010977 unit operation Methods 0.000 description 1
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- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
The utility model relates to liquefied ammonia evaporation technique fields, disclose a kind of ammonia gas supplying device for thermal power plant, the ammonia gas supplying device includes the first ammonia feed unit (1) and the second ammonia feed unit (2), the first ammonia feed unit (1) includes the first liquid ammonia storage tank (11) being sequentially communicated, first liquid ammonia evaporator (12) and the first ammonia surge tank (13), second ammonia feed unit (2) includes the second liquid ammonia storage tank (11 ') being sequentially communicated, second liquid ammonia evaporator (12 ') and the second ammonia surge tank (13 '), wherein, first ammonia surge tank (13) of the first ammonia feed unit (1) and the second ammonia surge tank (13 ') of the second ammonia feed unit (2) are attached by connecting pipe (3).The device can guarantee the reliability to denitrating system for ammonia, safeguarded and overhauled in time convenient for the equipment in each ammonia feed unit, and the stabilization, reliable of equipment and ammonia supply is further improved.
Description
Technical field
The utility model relates to liquefied ammonia evaporation technique fields, supply more particularly to a kind of ammonia for thermal power plant
Device.
Background technique
Liquefied ammonia is widely used as the reducing agent of thermal power plant selective catalytic reduction denitration, the storage of liquefied ammonia and
Supply security also attracts attention.
The unit of existing large-size thermal power plant essentially in batches build, go into operation, therefore mostly there are a power plant
If there are two ammonia feed systems, and the case where each ammonia feed system independent operating.With the promotion of environmental requirement, to nitrogen
The monitoring of emissions of oxides is also more harsh, and discharged nitrous oxides standard is 50mg/m after minimum discharge transformation3, and require to control
Small hourly value is not exceeded.However, independently operated ammonia feed system reliability is poor, interrupted when for ammonia, it is de- to will lead to unit
Nitre system exits, and discharged nitrous oxides are exceeded.
Accordingly, it is desirable to provide a kind of this ammonia feed system of high reliablity is to guarantee the continuous operation of denitrating system.
Utility model content
The purpose of this utility model is to overcome supply when ammonia feed system independent operating of the existing technology
The problem of ammonia interrupts and denitrating system is caused to exit, provides a kind of ammonia gas supplying device for thermal power plant, and the device is logical
It crosses the ammonia feed unit that will be run independently of each other to be interconnected, forms ammonia supply in entire ammonia gas supplying device each other
Standby configuration ensure that the reliability to denitrating system for ammonia, while because forming mutual backup configuration, guarantee ammonia supply
Can the equipment in each ammonia feed unit be safeguarded and be overhauled in time simultaneously, further improve equipment and ammonia supply
Reliability.
To achieve the goals above, the utility model provides a kind of ammonia gas supplying device for thermal power plant, should
Ammonia gas supplying device include the first ammonia feed unit and the second ammonia feed unit, the first ammonia feed unit include according to
The first liquid ammonia storage tank, the first liquid ammonia evaporator and the first ammonia surge tank of secondary connection, the second ammonia feed unit include successively
The second liquid ammonia storage tank, the second liquid ammonia evaporator and the second ammonia surge tank of connection, wherein the first ammonia feed unit
Second ammonia surge tank of the first ammonia surge tank and the second ammonia feed unit is attached by connecting pipe.
Preferably, the quantity of the first liquid ammonia evaporator in the first ammonia feed unit is 3, first ammonia
The quantity of the first ammonia surge tank in feed unit is 3；The second liquid ammonia evaporator in the second ammonia feed unit
Quantity be 3, the quantity of the second ammonia surge tank in the second ammonia feed unit is 3.
Preferably, the connecting pipe is equipped with the first shut-off valve and the close to the pipeline of the first ammonia feed unit
One pressure gauge；The connecting pipe is equipped with the second shut-off valve and second pressure close to the pipeline of the second ammonia feed unit
Table.
It is highly preferred that first shut-off valve and the second shut-off valve are hand stop valve.
Preferably, the first outlet side of the first ammonia surge tank in the first ammonia feed unit and the first ammonia are slow
Rush the first outlet side main pipe connection of tank, the second outlet side of the second ammonia surge tank in the second ammonia feed unit with
Second outlet side main pipe of the second ammonia surge tank is connected to, and the of one end of the connecting pipe and the first ammonia surge tank
One outlet side main pipe is connected, and the other end is connected with the second outlet side main pipe of the second ammonia surge tank.
Preferably, the first outlet side of the first ammonia surge tank of the first ammonia feed unit is equipped with shut-off valve；
Second outlet side of the second ammonia surge tank of the second ammonia feed unit is equipped with shut-off valve.
Preferably, the main pipe for connecting two adjacent ammonia surge tank outlet sides is equipped with shut-off valve.
It is further preferred that the quantity of the shut-off valve is one or more.
It is further preferred that the shut-off valve is hand stop valve or pneumatic stopping valve.
Preferably, first is respectively equipped on the first outlet side of the first ammonia surge tank of the first ammonia feed unit
Ammonia hand stop valve, the second ammonia hand stop valve and the first ammonia pneumatic stopping valve, the first ammonia pneumatic stopping valve
Between the first ammonia hand-operated valve and the second ammonia hand-operated valve；Second ammonia surge tank of the second ammonia feed unit
Second outlet side is equipped with the 4th ammonia hand stop valve, the 5th ammonia hand stop valve and third ammonia pneumatic stopping valve, institute
Third ammonia pneumatic stopping valve is stated between the 4th ammonia hand-operated valve and the 5th ammonia hand-operated valve.
It according to the utility model, is interconnected by the ammonia feed unit that will be run independently of each other, is supplied in entire ammonia
It is configured to the mutual backup that ammonia supplies is formed in area, ensure that the reliability to denitrating system for ammonia, while because being formed each other
Standby configuration can be safeguarded and be overhauled to the equipment in each ammonia feed unit in time while guaranteeing ammonia supply,
Further improve the reliability of equipment and ammonia supply.
Other features and advantages of the utility model will the following detailed description will be given in the detailed implementation section.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of ammonia gas supplying device provided by the utility model.
Description of symbols
1, the first ammonia feed unit 11, the first liquid ammonia storage tank
12, the first liquid ammonia evaporator 13, the first ammonia surge tank
3, connecting pipe 4, the first shut-off valve
41, the first ammonia hand stop valve 42, the second ammonia hand stop valve
43, the first ammonia pneumatic stopping valve 44, third ammonia hand stop valve
45, the second ammonia pneumatic stopping valve 5, first pressure gauge
6, the first outlet side 7, the first outlet side main pipe
2, the second ammonia feed unit 11 ', the second liquid ammonia storage tank
12 ', second liquid ammonia evaporator 13 ', the second ammonia surge tank
4 ', second shut-off valve 41 ', the 4th ammonia hand stop valve
42 ', the 5th ammonia hand stop valve 43 ', third ammonia pneumatic stopping valve
44 ', the 6th ammonia hand stop valve 45 ', the 4th ammonia pneumatic stopping valve
5 ', second pressure gauge 6 ', the second outlet side
7 ', second outlet side main pipe
Specific embodiment
In the present invention, the noun of locality used such as " upper and lower, left and right " typically refer to reference to it is shown in the drawings it is upper,
Under, it is left and right；" inside and outside " refers to the inside and outside of the profile relative to each component itself.In addition, term " first ", " second " are only used
In description purpose, it is not understood to indicate or imply relative importance or implicitly indicates the number of indicated technical characteristic
Amount.
The ammonia gas supplying device for thermal power plant of the utility model is carried out with reference to the accompanying drawing further detailed
Describe in detail it is bright, wherein the identical feature of identical digital representation in all attached drawings.
Fig. 1 is the structural schematic diagram of ammonia gas supplying device provided by the utility model.As shown in Figure 1, the utility model
Ammonia gas supplying device for thermal power plant includes the first ammonia feed unit 1 and the second ammonia feed unit 2, the first ammonia
Feed unit 1 includes the first liquid ammonia storage tank 11, the first liquid ammonia evaporator 12 and the first ammonia surge tank 13 that are sequentially communicated, and second
Ammonia feed unit 2 includes the second liquid ammonia storage tank 11 ', the second liquid ammonia evaporator 12 ' and the second ammonia surge tank being sequentially communicated
13 ', wherein the first ammonia surge tank 13 of the first ammonia feed unit 1 and the second ammonia of the second ammonia feed unit 2 buffer
Tank 13 ' is attached by connecting pipe 3.
According to the utility model, independently operated ammonia feed unit 1 and 2 is interconnected by connecting pipe 3, whole
The mutual backup configuration that ammonia supply is formed in a ammonia gas supplying device, ensure that the reliability to denitrating system for ammonia, simultaneously
Because forming mutual backup configuration, the equipment in each ammonia feed unit can be tieed up in time while guaranteeing ammonia supply
Shield and maintenance further improve the reliability of equipment and ammonia supply.
To the material of above-mentioned connecting pipe 3, there is no particular limitation, it is preferable that using having certain anti-corrosion ability and intensity
Material, more preferably stainless steel pipes.By using the material with certain anti-corrosion ability and intensity, can improve a step
Anti-corrosion ability and the safety for improving pipeline, extend the service life of pipeline.
The quantity of liquid ammonia storage tank in the utility model in ammonia feed unit is one or more, liquid ammonia evaporator and ammonia
The quantity of gas surge tank can be one or more, wherein a liquid ammonia evaporator and an ammonia in an ammonia feed unit
Gas surge tank is connected, and a liquid ammonia storage tank can be connect with one or more liquid ammonia evaporators.
In a preferred embodiment of the utility model, the first liquid ammonia evaporator in the first ammonia feed unit 1
12 quantity is 3, and the quantity of the first ammonia surge tank 13 in the first ammonia feed unit 1 is 3, one of them first liquid
Ammonia evaporator 12 is connect with a first ammonia surge tank 13, first first liquid ammonia evaporator of liquid ammonia storage tank 11 and 3 12
Connection；The quantity of the second liquid ammonia evaporator 12 ' in second ammonia feed unit 2 is 3, the second ammonia feed unit 2
In the quantity of the second ammonia surge tank 13 ' be 3, second liquid ammonia evaporator 12 ' and a second ammonia surge tank 13 '
Connection, second liquid ammonia storage tank 11 ' are connect with 3 the second liquid ammonia evaporators 12 '.
For the demand of further satisfaction denitrating system, it is preferable that the connecting pipe 3 is supplied close to first ammonia
The pipeline of unit 1 is equipped with the first shut-off valve 4 and first pressure gauge 5；The connecting pipe 3 supplies single close to second ammonia
The pipeline of member 2 is equipped with the second shut-off valve 4 ' and second pressure gauge 5 '.By being equipped with shut-off valve and pressure on connecting pipe 3
Table can monitor the pressure of ammonia surge tank in each ammonia feed unit in time, it is ensured that each ammonia feed unit is averagely for ammonia pressure
The stabilization of power；Or adjust in time it is each in ammonia unit for ammonia pressure, with realize one exited for ammonia unit when, it is another for ammonia
The ammonia supply of unit can satisfy the demand of denitrating system.
To the control mode of above-mentioned first shut-off valve 4 and the second shut-off valve 4 ', there is no particular limitation, can be to cut manually
Only valve or pneumatic stopping valve, it is preferable that first shut-off valve 4 and the second shut-off valve 4 ' are hand stop valve.
In order to further ensure that the stable operation of ammonia gas supplying device, it is preferable that in the first ammonia feed unit 1
First outlet side 6 of the first ammonia surge tank 13 is connected to the first outlet side main pipe 7 of the first ammonia surge tank, second ammonia
Second outlet side 6 ' of the second ammonia surge tank 13 ' in gas feed unit 2 and the second outlet side of the second ammonia surge tank are female
Pipe 7 ' is connected to, and one end of the connecting pipe 3 is connected with the first outlet side main pipe 7 of the first ammonia surge tank, the other end
It is connected with the second outlet side main pipe 7 ' of the second ammonia surge tank.
Each ammonia feed unit carries out independent maintenance for convenience, so that the reliability of each ammonia feed unit is improved, into
One step ensures the stable operation of ammonia gas supplying device, it is preferable that the first ammonia surge tank 13 of the first ammonia feed unit 1
The first outlet side 6 be equipped with shut-off valve；Second outlet of the second ammonia surge tank 13 ' of the second ammonia feed unit 2
End 6 ' is equipped with shut-off valve.
To the quantity of above-mentioned shut-off valve, there is no particular limitation, it is preferable that the quantity of the shut-off valve is 1 or multiple.
To the control mode of above-mentioned shut-off valve, there is no particular limitation, it is preferable that the shut-off valve be hand stop valve or
Pneumatic stopping valve.
The first ammonia buffering in a preferred embodiment of the utility model, in the first ammonia feed unit 1
The first ammonia hand stop valve 41, the second ammonia hand stop valve 42 and the first ammonia are respectively equipped on first outlet side 6 of tank 13
Gas pneumatic stopping valve 43, the first ammonia pneumatic stopping valve 43 are located at the first ammonia hand stop valve 41 and the second ammonia manual shutoff
Between valve 42；Second outlet side 6 ' of the second ammonia surge tank 13 ' of the second ammonia feed unit 2 is equipped with the 4th ammonia hand
Dynamic shut-off valve 41 ', the 5th ammonia hand stop valve 42 ' and third ammonia pneumatic stopping valve 43 ', third ammonia pneumatic stopping valve
43 ' between the 4th ammonia hand stop valve 41 ' and the 5th ammonia hand stop valve 42 '.
In order to further increase the reliability of each ammonia feed unit, it is ensured that ammonia feed system for ammonia stabilization, preferably
Ground, the main pipe for connecting two adjacent ammonia surge tank outlet sides are equipped with shut-off valve.By in ammonia surge tank outlet side mother
Shut-off valve is set on pipe, in the device fails of ammonia feed unit or when being overhauled, can still ensure that ammonia supplies
Device is stable, continues for ammonia, to further ensure the normal operation of denitrating system.
To the quantity of above-mentioned shut-off valve, there is no particular limitation, it is preferable that the quantity of the shut-off valve is 1 or multiple.
To the control mode of above-mentioned shut-off valve, there is no particular limitation, it is preferable that the shut-off valve be hand stop valve or
Pneumatic stopping valve.
In a preferred embodiment of the utility model, 3 the first ammonias in the first ammonia feed unit 1 are slow
The first outlet side 6 for rushing tank is connected with the first outlet side of ammonia main pipe 7 respectively, connects two adjacent the first ammonia surge tanks
Two sections of first outlet side main pipe 7 are respectively equipped with third ammonia hand stop valve 44 and the second ammonia pneumatic stopping valve 45, and second
Second outlet side 6 ' of 3 the second ammonia surge tanks in ammonia feed unit 2 respectively with 7 ' phase of the second outlet side of ammonia main pipe
Even, the second outlet side main pipe 7 ' for connecting two adjacent the second ammonia surge tanks is equipped with the 6th ammonia hand stop valve 44 '
With the 4th ammonia pneumatic stopping valve 45 '.
First shut-off valve 4 (hand of the ammonia gas supplying device provided by the utility model in day-to-day operation, on connecting pipe 3
Dynamic shut-off valve) it is in close state, when three arrange the in 1 power failure of the first ammonia feed unit or the first ammonia feed unit 1
When one liquid ammonia evaporator 12 is interrupted, interrupted for auxiliary steam for ammonia interruption, water supply, ammonia gas supplying device connecting pipe is opened respectively
Manual first shut-off valve 4 at 3 both ends and the second shut-off valve 4 ' increase the second ammonia buffer tank pressure in the second ammonia feed unit
(day-to-day operation pressure is 0.18MPa, is promoted to 0.2MPa) guarantees the average steady for ammonia pressure of two ammonia feed units
Fixed (0.18MPa or so).First ammonia feed unit 1 can be out of service, only by the second ammonia feed unit 2 for ammonia.This side
Formula three second liquid ammonia evaporators 12 ' of column suitable for 2 power failure of the second ammonia feed unit or the second ammonia feed unit 2 supply
Ammonia interruption is supplied water when interrupting, interrupting for auxiliary steam or when planned whole maintenance, only by the first ammonia feed unit 1 for ammonia
The case where.
First shut-off valve 4 (hand of the ammonia gas supplying device provided by the utility model in day-to-day operation, on connecting pipe 3
Dynamic shut-off valve) it is in close state, when the first liquid ammonia evaporator 12 single-row in the first ammonia feed unit 1 and the first ammonia buffer
Tank 13 is run, in other first liquid ammonia evaporators and the first ammonia surge tank failure, maintenance or the first ammonia feed unit 1
The first liquid ammonia storage tank of separate unit operation, other first liquid ammonia storage tank failures or maintenance stop transport, when operation tank level reach low liquid
When the alarm of position, manual first shut-off valve 4 and the second shut-off valve 4 ' at 3 both ends of ammonia gas supplying device connecting pipe are opened, adjusts 2
The ammonia buffer tank pressure (being set as 0.22MPa for ammonia side, spare side is set as 0.2MPa) of a ammonia feed unit is realized
The second high ammonia feed unit of pressure is actively for ammonia, and the first low ammonia feed unit of pressure is as spare.Because of two ammonias
Feed unit is in the state of putting into operation, and when interrupting for ammonia side for ammonia, spare side's ammonia feed unit can realize spare supply automatically.
This mode is equally applicable to single-row operation in the second ammonia feed unit 2, and other column maintenance or liquid level are low, for ammonia reliability decrease
The case where, realize that two ammonia feed units are arranged side by side each other for ammonia mode.
Using ammonia gas supplying device provided by the utility model, realizes two ammonia feed units formation mutual backup and match
It sets, ensure that the reliability to denitrating system for ammonia, and due to forming mutual backup configuration, effectively prevent when an ammonia
Feed unit interrupts the occurrence of nitrogen oxides for causing denitrating system to exit and causing is exceeded for ammonia, while being also conducive to each ammonia
The progress of plant maintenance and maintenance in gas feed unit, improves the reliability of equipment, further ensures the stability for ammonia
And the stable operation of denitrating system.
Preferred embodiments of the present invention, still, the utility model and unlimited are described in detail in conjunction with attached drawing above
In this.In the range of the technology design of the utility model, a variety of simple variants can be carried out to the technical solution of the utility model.
In order to avoid unnecessary repetition, no further explanation will be given to various combinations of possible ways for the utility model.But these simple changes
Type and combination equally should be considered as content disclosed in the utility model, belong to the protection scope of the utility model.
Claims (10)
1. a kind of ammonia gas supplying device for thermal power plant, which includes the first ammonia feed unit (1)
With the second ammonia feed unit (2), the first ammonia feed unit (1) include the first liquid ammonia storage tank (11) being sequentially communicated,
First liquid ammonia evaporator (12) and the first ammonia surge tank (13), the second ammonia feed unit (2) includes second be sequentially communicated
Liquid ammonia storage tank (11 '), the second liquid ammonia evaporator (12 ') and the second ammonia surge tank (13 '), which is characterized in that first ammonia
First ammonia surge tank (13) of gas feed unit (1) and the second ammonia surge tank (13 ') of the second ammonia feed unit (2) are logical
Connecting pipe (3) is crossed to be attached.
2. the ammonia gas supplying device according to claim 1 for thermal power plant, which is characterized in that
The quantity of the first liquid ammonia evaporator (12) in the first ammonia feed unit (1) is 3, the first ammonia supply
The quantity of the first ammonia surge tank (13) in unit (1) is 3；
The quantity of the second liquid ammonia evaporator (12 ') in the second ammonia feed unit (2) is 3, and second ammonia supplies
Quantity to the second ammonia surge tank (13 ') in unit (2) is 3.
3. the ammonia gas supplying device according to claim 1 for thermal power plant, which is characterized in that
The connecting pipe (3) is equipped with the first shut-off valve (4) and first close to the pipeline of the first ammonia feed unit (1)
Pressure gauge (5)；
The connecting pipe (3) is equipped with the second shut-off valve (4 ') and the close to the pipeline of the second ammonia feed unit (2)
Two pressure gauges (5 ').
4. the ammonia gas supplying device according to claim 3 for thermal power plant, which is characterized in that first cut-off
Valve (4) and the second shut-off valve (4 ') are hand stop valve.
5. the ammonia gas supplying device according to claim 2 for thermal power plant, which is characterized in that
The first outlet side (6) of the first ammonia surge tank (13) in the first ammonia feed unit (1) and the first ammonia are slow
The first outlet side main pipe (7) connection of tank is rushed, the second ammonia surge tank (13 ') in the second ammonia feed unit (2)
Second outlet side (6 ') is connected to the second outlet side main pipe (7 ') of the second ammonia surge tank, and the connecting pipe (3)
One end is connected with the first outlet side main pipe (7) of the first ammonia surge tank, the second outlet of the other end and the second ammonia surge tank
Main pipe (7 ') are held to be connected.
6. the ammonia gas supplying device according to claim 5 for thermal power plant, which is characterized in that
The first outlet side (6) of first ammonia surge tank (13) of the first ammonia feed unit (1) is equipped with shut-off valve；
Second outlet side (6 ') of the second ammonia surge tank (13 ') of the second ammonia feed unit (2) is equipped with shut-off valve.
7. the ammonia gas supplying device according to claim 5 for thermal power plant, which is characterized in that connect adjacent two
The main pipe of a ammonia surge tank outlet side is equipped with shut-off valve.
8. the ammonia gas supplying device according to claim 6 or 7 for thermal power plant, which is characterized in that the cut-off
The quantity of valve is one or more.
9. the ammonia gas supplying device according to claim 8 for thermal power plant, which is characterized in that the shut-off valve is
Hand stop valve or pneumatic stopping valve.
10. the ammonia gas supplying device according to claim 9 for thermal power plant, which is characterized in that
First is respectively equipped on the first outlet side (6) of first ammonia surge tank (13) of the first ammonia feed unit (1)
Ammonia hand stop valve (41), the second ammonia hand stop valve (42) and the first ammonia pneumatic stopping valve (43), first ammonia
Gas pneumatic stopping valve (43) is between the first ammonia hand stop valve (41) and the second ammonia hand stop valve (42)；
Second outlet side (6 ') of the second ammonia surge tank (13 ') of the second ammonia feed unit (2) is equipped with the 4th ammonia
Gas hand stop valve (41 '), the 5th ammonia hand stop valve (42 ') and third ammonia pneumatic stopping valve (43 '), the third ammonia
Gas pneumatic stopping valve (43 ') is between the 4th ammonia hand stop valve (41 ') and the 5th ammonia hand stop valve (42 ').
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820658076.7U CN209146731U (en) | 2018-05-04 | 2018-05-04 | A kind of ammonia gas supplying device for thermal power plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820658076.7U CN209146731U (en) | 2018-05-04 | 2018-05-04 | A kind of ammonia gas supplying device for thermal power plant |
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| Publication Number | Publication Date |
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| CN209146731U true CN209146731U (en) | 2019-07-23 |
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| CN201820658076.7U Active CN209146731U (en) | 2018-05-04 | 2018-05-04 | A kind of ammonia gas supplying device for thermal power plant |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113230885A (en) * | 2021-04-30 | 2021-08-10 | 中国神华煤制油化工有限公司 | SCR denitration system |
-
2018
- 2018-05-04 CN CN201820658076.7U patent/CN209146731U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113230885A (en) * | 2021-04-30 | 2021-08-10 | 中国神华煤制油化工有限公司 | SCR denitration system |
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