CN202349989U - Shut-down protection octadecylamine dosing device - Google Patents
Shut-down protection octadecylamine dosing device Download PDFInfo
- Publication number
- CN202349989U CN202349989U CN2011203699344U CN201120369934U CN202349989U CN 202349989 U CN202349989 U CN 202349989U CN 2011203699344 U CN2011203699344 U CN 2011203699344U CN 201120369934 U CN201120369934 U CN 201120369934U CN 202349989 U CN202349989 U CN 202349989U
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- CN
- China
- Prior art keywords
- octadecylamine
- reserve tank
- liquid reserve
- protection
- during shutdown
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- Expired - Fee Related
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Abstract
The utility model discloses a shut-down protection octadecylamine dosing device. The device can convey a shut-down octadecylamine protecting agent to inner walls of a boiler steam and water system in a shorter time. The device comprises a trolley and a liquid storage tank placed on the trolley, wherein a desalted water inlet pipe, an octadecylamine protecting agent dosing hole and a stirring device are arranged at the top of the liquid storage tank; an electric appliance control box is arranged on the lateral side of the liquid storage tank; and the outlet end of the bottom part of the liquid storage tank is connected with a multi-stage high water head centrifugal pump by a pipeline. According to the shut-down protection octadecylamine dosing device, the multi-stage high water head centrifugal pump is adopted, so that the dosing time of adding the octadecylamine protecting agent into the steam and water system of a generator set in a power plant is shortened from 3-6 h to below 60 min, the adding efficiency is greatly improved, the boiler steam and water system in a shut-down state is prevented being corroded due to long-time exposure in the atmosphere, and the safety of the boiler steam and water system is guaranteed. Meanwhile, the fuel consumption can be saved for the shut-down process of the generator set. The shut-down protection octadecylamine dosing device has compact structure and reliable performance, and is convenient to operate.
Description
Technical field
The utility model relates to thermal power plant protection of boiler during shutdown period treating apparatus, particularly utilizes octadecylamine boiler steam and water circuit to be carried out the treating apparatus of anti-corrosion protection.
Background technology
The power plant boiler boiler circuit is stopped transport and protected is to be related to unit safety and energy-conservation significant problem.During power plant units was stopped transport, boiler steam and water circuit equipment can produce serious corrosion in atmosphere, shortened the service life of boiler circuit equipment such as boiler.Traditional protection of boiler during shutdown period measure has the nitrogen of filling method, waste heat oven drying method, fills ammonia process and adds vapour phase inhibitor method or the like.Domestic in recent years developed many with the octadecylamine be the basis various boiler shutdown protective agents; Before shutdown, utilized existing ammonification and the equipment that adds phosphate that medicine is added drum in 1-2 hour, be carried to each position of boiler circuit through steam, at the diaphragm of system equipment inwall formation one deck hydrophobicity; Can make equipment be exposed in the atmosphere 6-12 month is not corroded; Method for using is very simple, and antiseptic effect is good, so this method is applied rapidly.But utilize the equipment that has ammonification now and add phosphate to add octadecylamine protection of boiler during shutdown period medicine and need 3～6 hours consuming time, have a strong impact on the unit outage operating process, for keeping unit parameter stable, need consume great amount of fuel oil simultaneously.
Summary of the invention:
The purpose of the utility model provides a kind of protection of boiler during shutdown period octadecylamine chemicals dosing plant, and the technical problem that solve is the everywhere inwall that in the short period of time agent of octadecylamine protection of boiler during shutdown period is delivered to boiler steam and water circuit.
The technical scheme that the utility model adopts is:
The protection of boiler during shutdown period octadecylamine chemicals dosing plant of the utility model; Comprise dolly, be placed on the liquid reserve tank on the dolly; Be provided with demineralized water water inlet pipe, octadecylamine protective agent dosing mouth and agitating device at the top of liquid reserve tank; Side at its liquid reserve tank is provided with electric appliance control box, and the port of export of liquid reserve tank bottom links to each other with multistage high water head centrifugal pump through pipeline.
Be provided with valve and y-type filter between the port of export bottom liquid reserve tank and the multistage high water head centrifugal pump entrance point.
The multistage high water head centrifugal pump port of export is access to the oxygen-eliminating device outlet of power plant unit.
In liquid reserve tank described octadecylamine protective agent dosing mouth below, be provided with double-deck different aperture screen pack.
Inwall at liquid reserve tank radially vertically is provided with bridge insert, is provided with the case supports stiffener that is weldingly connected with the liquid reserve tank outer wall in the corresponding position of outer wall bridge insert of liquid reserve tank.
The blade of said agitating device is the multiple field blade.
Outer wall at liquid reserve tank also is provided with the case supports frame.
Described liquid reserve tank is made by stainless steel material.
Described liquid reserve tank is shaped as cylinder, cuboid or ellipsoid container.
The utility model is owing to adopted multistage high water head centrifugal pump between protection of boiler during shutdown period is with octadecylamine protective agent liquid reserve tank and power plant Unit Steam Water system; Make that adding the protectant administration timing of drug of octadecylamine to power plant Unit Steam Water system reduced in 60 minutes by original 3-6 hour; Improved greatly and added efficient; Avoid the boiler steam and water circuit of blowing out to occur corrosion phenomenon in the atmosphere, guaranteed the safety of boiler steam and water circuit because of being exposed to for a long time.Can practice thrift fuel consume for generating set stoppage in transit process simultaneously, the utility model compact conformation, easy to operate, dependable performance.
Description of drawings
Fig. 1 is the utility model stereogram.
Fig. 2 is the utility model side view.
Fig. 3 is the utility model tank body part cutaway view.
Fig. 4 be among Fig. 3 F-F to enlarged diagram.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is done further explain.
Like Fig. 1, shown in 2, the protection of boiler during shutdown period octadecylamine chemicals dosing plant of the utility model is arranged on the transportable dolly 9; Mainly pump into the multistage high water head centrifugal pump 2 of boiler steam and water circuit by the storage protectant liquid reserve tank 1 of octadecylamine and with the octadecylamine protective agent; Described liquid reserve tank 1 is made by corrosion resistant plate, also can be made by other resistant material, and its profile is a cylinder; Also can be cuboid or oval shape, its volume be at 0.5-2.0m
3, also be provided with case supports frame 81 at the outer wall of liquid reserve tank 1.
Side at liquid reserve tank 1 top is provided with demineralized water water inlet pipe 11 and inlet valve 12, through regulating the injection rate of demineralized water in the inlet valve 12 control liquid reserve tanks 1.
Opposite side at liquid reserve tank 1 top is provided with octadecylamine protective agent dosing mouth 4; Place the below that is positioned at dosing mouth 4 in the liquid reserve tank 1; Being provided with 41, one of double-deck different aperture screen packs that are nested together mutually not of uniform size, that the aperture is different is Intranet, and another is an outer net; The pore size filter of Intranet is greater than the pore size filter of outer net, and its effect is that the block in the octadecylamine protective agent is filtered out.
Central authorities at liquid reserve tank 1 top are provided with agitating device 3, and puddler and blade stretch in the liquid reserve tank 1, and blade is the multiple field blade, its effect can make the octadecylamine protective agent in liquid reserve tank 1 diluted with add in the process more all even stable.
Side at liquid reserve tank 1 is provided with multistage high water head centrifugal pump 2; The entrance point of this multistage high water head centrifugal pump 2 links to each other with the drain pipe of valve 23 with liquid reserve tank 1 bottom through y-type filter 6; Y-type filter 6 is to prevent in operation process, to fall into accidentally pocket-handkerchief in the liquid reserve tank 1 (like the nut pad etc.) to get into boiler steam and water circuit through pipeline; The port of export of this multistage high water head centrifugal pump 2 joins with the oxygen-eliminating device outlet of power plant unit through pipeline, valve 23; These multistage high water head centrifugal pump 2 flows are big, lift is high; Can guarantee that within 60 minutes the octadecylamine protective agent that the single protection of boiler during shutdown period is required is added in the boiler circuit of the various capacity units with high pressure fast.
Like Fig. 3, shown in 4; Inwall at liquid reserve tank 1 radially vertically is provided with bridge insert 7; One end of bridge insert 7 and liquid reserve tank 1 inwall weld together, and corresponding one by one with the case supports stiffener 8 that is arranged on liquid reserve tank 1 outer wall, and its curved surface is identical with the curved surface of the tank wall of liquid reserve tank 1; Inside and outside liquid reserve tank 1, along the circumferential direction evenly be provided with four corresponding each other bridge inserts 7 and case supports stiffener 8, the curved surface of said case supports stiffener 8 is identical with liquid reserve tank 1 outer wall curved surface.The effect of bridge insert 7 can impel the octadecylamine protective agent in the liquid reserve tank 1 in the process that stirs, to mix more, does not make the distortion of liquid reserve tank 1 tank wall with outer case supports stiffener 8 actings in conjunction of casing simultaneously.
Also be provided with the electric appliance control box 5 of control agitating device 3 and multistage high water head centrifugal pump 2 at the side of liquid reserve tank 1 outer wall.
It is following that use the utility model adds the protectant processing step of octadecylamine:
The first step: the port of export and the thermal power plant unit oxygen-eliminating device outlet of the multistage high water head centrifugal pump 2 of the utility model are joined, carry out system's pressure testing and test running debugging, confirm to connect pipeline and do not have leakages, medicine system operation normally;
Second step: the 100kg demineralized water is added in the liquid reserve tank 1; Be 10% octadecylamine protective agent again with the purity of set amount (concrete consumption according to power plant units model confirm); Add in the liquid reserve tank 1 through the different aperture of bilayer screen pack 41, stir, after stirring; Continue to add demineralized water to its weight and be purity and be till 2 times of 10% octadecylamine protective agent weight, continue to stir up to even back subsequent use;
The 3rd step: treat that boiler shuts down the sliding stopping time, open multistage high water head centrifugal pump 2, the octadecylamine protective agent solution of getting ready is pumped into the boiler circuit of generator unit, this boiler circuit comprises that oxygen-eliminating device, height add, drum, superheater and steam turbine etc.
The 4th step: when treating that drum pressure is reduced to 0.5-0.8Mpa, discharge water by hot stove, the protectant process of octadecylamine that adds is accomplished in the operation of waste heat baking step.
Claims (9)
1. protection of boiler during shutdown period octadecylamine chemicals dosing plant; Comprise dolly (9), be placed on the liquid reserve tank (1) on the dolly (9); Be provided with demineralized water water inlet pipe (11), octadecylamine protective agent dosing mouth (4) and agitating device (3) at the top of liquid reserve tank (1); Side at its liquid reserve tank (1) is provided with electric appliance control box (5), it is characterized in that: the port of export of liquid reserve tank (1) bottom links to each other with multistage high water head centrifugal pump (2) through pipeline.
2. protection of boiler during shutdown period octadecylamine chemicals dosing plant according to claim 1 is characterized in that: be provided with valve (23) and y-type filter (6) between the port of export bottom liquid reserve tank (1) and multistage high water head centrifugal pump (2) entrance point (21).
3. protection of boiler during shutdown period octadecylamine chemicals dosing plant according to claim 2 is characterized in that: multistage high water head centrifugal pump (2) port of export (22) is access to the oxygen-eliminating device outlet of power plant unit.
4. protection of boiler during shutdown period octadecylamine chemicals dosing plant according to claim 1 is characterized in that: the below of described octadecylamine protective agent dosing mouth (4) in liquid reserve tank (1) is provided with double-deck different aperture screen pack (41).
5. protection of boiler during shutdown period octadecylamine chemicals dosing plant according to claim 1; It is characterized in that: the inwall at liquid reserve tank (1) radially vertically is provided with bridge insert (7), is provided with the case supports stiffener (8) that is weldingly connected with liquid reserve tank (1) outer wall in the corresponding position of outer wall bridge insert (7) of liquid reserve tank (1).
6. protection of boiler during shutdown period octadecylamine chemicals dosing plant according to claim 1 is characterized in that: the blade of said agitating device (3) is the multiple field blade.
7. protection of boiler during shutdown period octadecylamine chemicals dosing plant according to claim 1 is characterized in that: the outer wall at liquid reserve tank (1) also is provided with case supports frame (81).
8. according to each described protection of boiler during shutdown period octadecylamine chemicals dosing plant among the claim 1-7, it is characterized in that: described liquid reserve tank (1) is made by stainless steel material.
9. according to each described protection of boiler during shutdown period octadecylamine chemicals dosing plant among the claim 1-7, it is characterized in that: described liquid reserve tank (1) is shaped as cylinder, cuboid or ellipsoid container.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203699344U CN202349989U (en) | 2011-09-30 | 2011-09-30 | Shut-down protection octadecylamine dosing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203699344U CN202349989U (en) | 2011-09-30 | 2011-09-30 | Shut-down protection octadecylamine dosing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202349989U true CN202349989U (en) | 2012-07-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203699344U Expired - Fee Related CN202349989U (en) | 2011-09-30 | 2011-09-30 | Shut-down protection octadecylamine dosing device |
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| Country | Link |
|---|---|
| CN (1) | CN202349989U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110819996A (en) * | 2019-11-15 | 2020-02-21 | 广州珠江天然气发电有限公司 | High-temperature film forming maintenance method for gas-steam combined cycle unit |
-
2011
- 2011-09-30 CN CN2011203699344U patent/CN202349989U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110819996A (en) * | 2019-11-15 | 2020-02-21 | 广州珠江天然气发电有限公司 | High-temperature film forming maintenance method for gas-steam combined cycle unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120725 Termination date: 20140930 |
|
| EXPY | Termination of patent right or utility model |