CN203687012U - Steam bypass structure of sulphuric acid production high temperature superheater - Google Patents
Steam bypass structure of sulphuric acid production high temperature superheater Download PDFInfo
- Publication number
- CN203687012U CN203687012U CN201420035918.5U CN201420035918U CN203687012U CN 203687012 U CN203687012 U CN 203687012U CN 201420035918 U CN201420035918 U CN 201420035918U CN 203687012 U CN203687012 U CN 203687012U
- Authority
- CN
- China
- Prior art keywords
- steam
- high temperature
- pipeline
- temperature superheater
- pass
- Prior art date
- 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.)
- Expired - Fee Related
Links
Landscapes
- Chimneys And Flues (AREA)
Abstract
The utility model relates to the technical field of machinery, in particular to a steam bypass structure of a sulphuric acid production high temperature superheater. The steam bypass structure comprises the high temperature superheater, wherein a steam bypass pipeline is arranged between a steam outlet pipeline of the high temperature superheater and a steam inlet pipeline of the high temperature superheater, a steam bypass regulating valve is arranged on the steam bypass pipeline, and the temperature signal end of the steam bypass regulating valve is connected with the temperature measurement point of a smoke outlet pipeline of the high temperature superheater. Compared with the prior art, the temperature of the smoke outlet pipeline of the high temperature superheater is controlled through the steam bypass pipeline, temperature regulation is moderate, the effect of controlling the temperature and the flow velocity of smoke at the outlet of the high temperature superheater is achieved, and therefore impact on converter catalytic agents is reduced; the flow velocity of the steam pipeline is high, the pipe diameter and the regulating valve are small, steel consumption is low, pipeline flexibility is high, pipeline arrangement is compact, stress calculation is simple, and construction cost is reduced.
Description
Technical field
The utility model relates to field of mechanical technique, specifically a kind of steam by-pass structure of acid production with sulphur high temperature superheater.
Background technology
In sulphur-burning sulphuric acid plant, high temperature superheater exit gas temperature, be two sections of flue-gas temperatures of converter, normally by being arranged on, the bypass of high temperature superheater fume side controls, and due to approximately 620 ℃ of fume side bypass flue-gas temperatures, temperature is high, in addition, fume side bypass duct nominal diameter is large, causes regulating valve structure size large, and valve body is heavy and expensive.Due to the restriction of locus, the layout of high-temperature flue gas pipeline and Stress calculation are all more difficult, thereby have greatly improved the construction cost of device.
Therefore, need to design a kind of steam by-pass structure that can improve fume side variations in temperature and reduce the acid production with sulphur high temperature superheater of construction cost.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of steam by-pass structure that can improve fume side variations in temperature and reduce the acid production with sulphur high temperature superheater of construction cost is provided.
In order to achieve the above object, the utility model has designed a kind of steam by-pass structure of acid production with sulphur high temperature superheater, comprise high temperature superheater, it is characterized in that: between the steam inlet pipeline of high temperature superheater and steam (vapor) outlet pipeline, be provided with steam by-pass pipeline, steam by-pass pipeline is provided with steam by-pass control valve, and the temperature signal end of steam by-pass control valve is connected with the temperature point of the exhanst gas outlet pipeline of high temperature superheater.
The diameter of described steam by-pass pipeline and described steam by-pass control valve is all less than the diameter of flue gas by-pass line and gas bypass control valve.
Described exhanst gas outlet pipeline is that steel plate rolls welded pipe line, and described exhanst gas outlet pipeline connects the exhanst gas outlet of high temperature superheater.
Described steam inlet pipeline is seamless steel pipe, and described steam inlet pipeline connects the steam inlet of high temperature superheater.
Described steam (vapor) outlet pipeline is seamless steel pipe, and described steam (vapor) outlet pipeline connects the steam (vapor) outlet of high temperature superheater.
The utility model compared with the existing technology, adopt steam by-pass pipeline control high temperature superheater exhanst gas outlet pipe temperature, temperature regulates and relaxes, and reaches the effect of controlling high temperature superheater exit gas temperature and flow velocity, thereby has reduced the impact to converter catalyst; Jet chimney flow velocity is high, caliber and control valve compared with little, steel consumption is few, pipeline flexible is good, pipe arrangement compactness, Stress calculation is simple, has reduced construction cost.
Accompanying drawing explanation
Fig. 1 is the flue gas bypass schematic diagram of prior art.
Fig. 2 is flue gas bypass schematic diagram of the present utility model
Referring to Fig. 1 and Fig. 2,1 is high temperature superheater; 2 is gas approach pipeline; 3 is exhanst gas outlet pipeline; 4 is steam inlet pipeline; 5 is steam (vapor) outlet pipeline; 6 is steam by-pass pipeline; 7 is steam by-pass control valve; 8 is gas bypass pipeline; 9 is gas bypass control valve.
The specific embodiment
Now by reference to the accompanying drawings the utility model is described further.
Referring to Fig. 2, the utility model is a kind of steam by-pass structure of acid production with sulphur high temperature superheater, comprises high temperature superheater.Between the steam inlet pipeline 4 of high temperature superheater 1 and steam (vapor) outlet pipeline 5, be provided with steam by-pass pipeline 6, steam by-pass pipeline 6 is provided with steam by-pass control valve 7, and the temperature signal end of steam by-pass control valve 7 is connected with the temperature point of the exhanst gas outlet pipeline 3 of high temperature superheater 1.
In the utility model, the diameter of steam by-pass pipeline 6 and steam by-pass control valve 7 is all less than the diameter of flue gas by-pass line 8 and described gas bypass control valve 9.
Gas approach pipeline 2 is for steel plate rolls welded pipe line, and gas approach pipeline 2 connects the gas approach of high temperature superheater 1, for the inflow of flue gas.
Exhanst gas outlet pipeline 3 is for steel plate rolls welded pipe line, and exhanst gas outlet pipeline 3 connects the exhanst gas outlet of high temperature superheater 1, for the outflow of flue gas.
Steam inlet pipeline 4 is seamless steel pipe, and steam inlet pipeline 4 connects the steam inlet of high temperature superheater 1, for the inflow of steam in high temperature superheater 1 heat pipe.
Steam (vapor) outlet pipeline 5 is seamless steel pipe, and steam (vapor) outlet pipeline 5 connects the steam (vapor) outlet of high temperature superheater 1, for the outflow of steam in high temperature superheater 1 heat pipe.
Steam by-pass pipeline 6 is seamless steel pipe.Steam by-pass pipeline 6 is provided with steam by-pass control valve 7, and steam by-pass control valve 7 enters the steam flow of high temperature superheater 1 for steam regulation bypass duct 6.
The utility model is in the time of work, fume side high-temperature flue gas is through converter one section outlet, after high temperature superheater 1 is cooling, enter two sections of converters, the aperture of the steam by-pass control valve 7 on the temperature signal control steam by-pass pipeline 6 that steam side exports according to high temperature superheater 1, thus the steam flow that enters high temperature superheater 1 controlled.Part steam directly arrives the steam (vapor) outlet pipeline 5 of high temperature superheater 1 through steam by-pass pipeline 6, the heating surface that another part steam enters high temperature superheater 1 by import header absorbs flue gas heat, discharges and mixes with reject steam through outlet header.Like this, utilize the adjusting of medium steam flow in high temperature superheater 1 heat pipe, regulate the temperature of the outer heat release medium flue gas of heat pipe.In pipe, medium steam flow is few, and the heat of the outer flue gas of absorption tube is few, and flue-gas temperature just raises; Otherwise flue-gas temperature just reduces.
The utility model adopts steam by-pass pipeline 6 to control high temperature superheater exhanst gas outlet pipeline 3 temperature, and temperature regulates and relaxes, and reaches the effect of controlling high temperature superheater 1 exit gas temperature and flow velocity, thereby has reduced the impact to converter catalyst; Jet chimney flow velocity is high, caliber and control valve compared with little, steel consumption is few, pipeline flexible is good, pipe arrangement compactness, Stress calculation is simple, has reduced construction cost.
Claims (5)
1. the steam by-pass structure of an acid production with sulphur high temperature superheater, comprise high temperature superheater, it is characterized in that: between the steam inlet pipeline (4) of high temperature superheater (1) and steam (vapor) outlet pipeline (5), be provided with steam by-pass pipeline (6), steam by-pass pipeline (6) is provided with steam by-pass control valve (7), and the temperature signal end of steam by-pass control valve (7) is connected with the temperature point of the exhanst gas outlet pipeline (3) of high temperature superheater (1).
2. the steam by-pass structure of a kind of acid production with sulphur high temperature superheater according to claim 1, is characterized in that: the diameter of described steam by-pass pipeline (6) and described steam by-pass control valve (7) is all less than the diameter of flue gas by-pass line (8) and gas bypass control valve (9).
3. the steam by-pass structure of a kind of acid production with sulphur high temperature superheater according to claim 1, it is characterized in that: described exhanst gas outlet pipeline (3) is for steel plate rolls welded pipe line, and described exhanst gas outlet pipeline (3) connects the exhanst gas outlet of high temperature superheater (1).
4. the steam by-pass structure of a kind of acid production with sulphur high temperature superheater according to claim 1, is characterized in that: described steam inlet pipeline (4) is seamless steel pipe, and described steam inlet pipeline (4) connects the steam inlet of high temperature superheater (1).
5. the steam by-pass structure of a kind of acid production with sulphur high temperature superheater according to claim 1, is characterized in that: described steam (vapor) outlet pipeline (5) is seamless steel pipe, and described steam (vapor) outlet pipeline (5) connects the steam (vapor) outlet of high temperature superheater (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420035918.5U CN203687012U (en) | 2014-01-21 | 2014-01-21 | Steam bypass structure of sulphuric acid production high temperature superheater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420035918.5U CN203687012U (en) | 2014-01-21 | 2014-01-21 | Steam bypass structure of sulphuric acid production high temperature superheater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203687012U true CN203687012U (en) | 2014-07-02 |
Family
ID=51008902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420035918.5U Expired - Fee Related CN203687012U (en) | 2014-01-21 | 2014-01-21 | Steam bypass structure of sulphuric acid production high temperature superheater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203687012U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949456A (en) * | 2017-03-29 | 2017-07-14 | 江联重工集团股份有限公司 | Low capacity boiler reheated steam multitube bypasses thermoregulating system |
-
2014
- 2014-01-21 CN CN201420035918.5U patent/CN203687012U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949456A (en) * | 2017-03-29 | 2017-07-14 | 江联重工集团股份有限公司 | Low capacity boiler reheated steam multitube bypasses thermoregulating system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102927577B (en) | Flue distribution manner applied to negative omnidistance load commissioning of denitration equipment | |
| CN201666565U (en) | Complementary combustion type waste heat boiler of catalytic cracking unit | |
| CN103836607B (en) | Thermal power plant's SCR denitration reactor working temperature controller and control method thereof | |
| CN106362590A (en) | Flue gas system and method for raising fume temperature of inlet of SCR (Selective Catalytic Reduction) denitration device | |
| CN104208995A (en) | Thermal device and method for increasing temperature of clean boiler smoke obtained by wet desulphurization | |
| WO2011084243A3 (en) | Economizer water recirculation system for boiler exit gas temperature control in supercritical pressure boilers | |
| CN207006114U (en) | A kind of energy conserving system of boiler | |
| CN203687012U (en) | Steam bypass structure of sulphuric acid production high temperature superheater | |
| CN203002215U (en) | SCR (Selective Catalytic Reduction) flue gas denitration system for burning lignite | |
| CN102937296B (en) | Boiler suitable for denitration device negative whole process load operation | |
| CN104315496B (en) | Based on etc. temperature difference principle boiler exhaust gas residual neat recovering system | |
| CN107448967B (en) | For improving the flue gas system and method for SCR denitration device inlet flue gas temperature | |
| CN207175469U (en) | A kind of Flue Gas of Nonferrous Smelting relieving haperacidity high-temperature residual heat utilization device | |
| CN204665224U (en) | A kind of Water pipe heating pipe afterheat boiler system be built on sintering machine flue | |
| CN103846007A (en) | Denitration control method of flue-gas selective catalytic reduction device | |
| CN206608971U (en) | Smoke waste heat utilization system for Combined cycle gas-steam turbine unit | |
| CN204665225U (en) | A kind of fin pipe waste heat boiler system being placed on sintering machine large flue side | |
| CN103727552A (en) | Adjustable denitration smoke temperature control system | |
| CN104832899B (en) | A kind of Water pipe heating pipe afterheat boiler system being built on sintering machine flue | |
| CN203823735U (en) | Coal economizer | |
| CN202813325U (en) | Exhaust-gas waste-heat boiler of glass kiln | |
| CN202599171U (en) | Flue gas waste heat recovery device | |
| CN205208605U (en) | MGGH flue gas reheat machine | |
| CN102937297B (en) | Boiler economizer suitable for denitration device whole course load commissioning | |
| CN207622058U (en) | A kind of system that out of stock device portal flue-gas temperature can be improved |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140702 Termination date: 20170121 |