CN111623332A - Steam production process of gas steam boiler - Google Patents
Steam production process of gas steam boiler Download PDFInfo
- Publication number
- CN111623332A CN111623332A CN202010506898.5A CN202010506898A CN111623332A CN 111623332 A CN111623332 A CN 111623332A CN 202010506898 A CN202010506898 A CN 202010506898A CN 111623332 A CN111623332 A CN 111623332A
- Authority
- CN
- China
- Prior art keywords
- pipeline
- gas
- boiler
- water
- preheater
- 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.)
- Pending
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B31/00—Modifications of boiler construction, or of tube systems, dependent on installation of combustion apparatus; Arrangements of dispositions of combustion apparatus
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B35/00—Control systems for steam boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/36—Water and air preheating systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
- F22D1/50—Feed-water heaters, i.e. economisers or like preheaters incorporating thermal de-aeration of feed-water
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22G—SUPERHEATING OF STEAM
- F22G7/00—Steam superheaters characterised by location, arrangement, or disposition
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Air Supply (AREA)
Abstract
The invention discloses a steam production process of a gas steam boiler, which comprises the following steps: soft water treatment, a water preheater, a thermal deaerator, an air preheater, natural gas, a gas boiler, superheated steam and flue gas. The invention has the beneficial effects that: boiler automation level: the higher the automation level of the boiler is, the more the complete combustion and the higher the heat efficiency are guaranteed, and by arranging a control valve between an air preheater pipeline and a natural gas pipeline, the gas-air ratio can be conveniently adjusted at any time, and the air excess coefficient is strictly controlled, so that the higher heat efficiency is guaranteed; water preheater and air preheater: the quality and performance of the water preheater and the air preheater also influence the heat efficiency and the smoke exhaust temperature of the boiler, the heating area of the water preheater and the air preheater is large, the heat conduction performance of the material is good, the effect of utilizing the waste heat of the smoke is high, the water inlet temperature and the air inlet temperature are higher, and the heat energy utilization efficiency is improved.
Description
Technical Field
The invention relates to the field of steam production processes, in particular to a steam production process of a gas steam boiler.
Background
Steam is one of the necessary energy sources for the textile printing and dyeing production process. The steam is from a steam boiler. The fuel of a steam boiler is usually coal, oil, gas and biomass. And the most commonly used fuel is coal. With the increasing requirements of society on environmental protection, especially the deepening of prevention and treatment work of air pollution, it is a great trend that textile printing and dyeing enterprises with steam boilers use fuel gas instead of coal as fuel of the steam boilers. The gas boiler can be widely used and popularized in the industrial manufacturing industry of China in a future period. However, whether natural gas or liquefied gas is used, the price is several times higher than that of coal. The coal is replaced by gas rather than simple energy source replacement or equipment replacement, but the textile printing and dyeing enterprises can improve the utilization rate of heat energy and reduce the loss of heat energy through deep and careful energy-saving work in the replacement process, so that the economic pressure caused by the rise of fuel price can be borne economically, a high-energy-efficiency gas boiler and steam consumption equipment need to be selected, the reasonable design, strict management and careful maintenance of the whole steam system are needed, and the management of steam and the improvement of corresponding process flow need to be strengthened. Practice shows that comprehensive improvement can meet the requirement of environmental protection and enable enterprises to bear the cost pressure brought by fuel rising in the process of using the gas-fired boiler.
Disclosure of Invention
The invention mainly aims to provide a steam production process of a gas steam boiler, which can effectively solve the problems in the background technology.
In order to achieve the purpose, the invention adopts the technical scheme that:
a steam production process of a gas steam boiler comprises the following steps:
the method comprises the following steps: performing soft water treatment, namely, enabling a water source to enter soft water treatment equipment through a pipeline for soft water treatment, and enabling the water source to enter a soft water tank for storage after the soft water treatment is finished;
step two: the water preheater is connected with the soft water tank through a pipeline, and water in the soft water tank flows into the water preheater for preheating treatment;
step three: the system comprises a water preheater, a thermal deaerator, a gas boiler and a gas-fired boiler, wherein the water preheater is connected with the thermal deaerator through a pipeline;
step four: the air preheater is used for preheating fresh air and is connected with the natural gas pipeline through a pipeline;
step five: the natural gas pipeline is connected with the gas boiler, the natural gas pipeline is connected with the air preheater pipeline, and the natural gas and the preheated air are mixed to form mixed natural gas;
step six: the system comprises a gas boiler, a natural gas pipeline and a thermal deaerator pipeline, wherein the gas boiler is connected with the natural gas pipeline and the thermal deaerator pipeline through pipelines, and mixed natural gas in the gas boiler is used for burning and evaporating water treated by the thermal deaerator to generate superheated steam and flue gas;
step seven: the gas-fired boiler is connected with the distribution superheated steam pipeline through a pipeline, and the superheated steam is discharged to the distribution superheated steam pipeline through the pipeline;
step eight: the flue gas pipeline is connected with the smoke exhaust pipeline of the gas-fired boiler; the flue gas pipeline is matched with the waste heat recovery system pipelines of the water preheater and the air preheater to form a waste heat recovery system.
Preferably, the water softening tank in the first step adopts a water pump to the water preheater in the second step, the water preheater in the second step adopts a water pump to the thermal deaerator in the third step, and the thermal deaerator in the third step adopts a water pump to the gas boiler in the sixth step.
Preferably, the air preheater in the fourth step and the outside adopt a fan to supply air, and an exhaust pipe of the air preheater in the fourth step is communicated with a fan of the natural gas pipeline in the fifth step.
Preferably, the exhaust pipe of the step four air preheater removes the preheated air to mix with the natural gas phase of the natural gas pipeline of the step five.
Preferably, a control valve is arranged at the joint of the air exhaust pipe of the air preheater and the natural gas pipeline.
Compared with the prior art, the invention has the following beneficial effects:
(1) boiler automation level: the higher the automation level of the boiler is, the more the complete combustion and the higher the heat efficiency are guaranteed, and by arranging a control valve between an air preheater pipeline and a natural gas pipeline, the gas-air ratio can be conveniently adjusted at any time, and the air excess coefficient is strictly controlled, so that the higher heat efficiency is guaranteed;
(2) water preheater and air preheater: the quality and performance of the water preheater and the air preheater also influence the heat efficiency and the smoke exhaust temperature of the boiler, the heating area of the water preheater and the air preheater is large, the heat conduction performance of the material is good, the effect of utilizing the waste heat of the smoke is high, the water inlet temperature and the air inlet temperature are higher, and the heat energy utilization efficiency is improved.
Drawings
FIG. 1 is a schematic process flow diagram of a steam production process of a gas steam boiler according to the present invention.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Example 1
A steam production process for a gas steam boiler as shown in fig. 1, comprising the steps of:
the method comprises the following steps: performing soft water treatment, namely, enabling a water source to enter soft water treatment equipment through a pipeline for soft water treatment, and enabling the water source to enter a soft water tank for storage after the soft water treatment is finished;
step two: the water preheater is connected with the soft water tank through a pipeline, and water in the soft water tank flows into the water preheater for preheating treatment;
step three: the system comprises a water preheater, a thermal deaerator, a gas boiler and a gas-fired boiler, wherein the water preheater is connected with the thermal deaerator through a pipeline;
step four: the air preheater is used for preheating fresh air and is connected with the natural gas pipeline through a pipeline;
step five: the natural gas pipeline is connected with the gas boiler, the natural gas pipeline is connected with the air preheater pipeline, and the natural gas and the preheated air are mixed to form mixed natural gas;
step six: the system comprises a gas boiler, a natural gas pipeline and a thermal deaerator pipeline, wherein the gas boiler is connected with the natural gas pipeline and the thermal deaerator pipeline through pipelines, and mixed natural gas in the gas boiler is used for burning and evaporating water treated by the thermal deaerator to generate superheated steam and flue gas;
step seven: the gas-fired boiler is connected with the distribution superheated steam pipeline through a pipeline, and the superheated steam is discharged to the distribution superheated steam pipeline through the pipeline;
step eight: the flue gas pipeline is connected with the smoke exhaust pipeline of the gas-fired boiler; the flue gas pipeline is matched with the waste heat recovery system pipelines of the water preheater and the air preheater to form a waste heat recovery system.
Wherein, the softened water tank adopts the water pump to the water heater in step two in step one, and the water heater adopts the water pump to the three heating power deaerators in step two, the three heating power deaerators in step adopt the water pump to the six gas boiler in step, step four air heater adopts the fan air inlet with the external world, and step four air heater exhaust pipe and step five natural gas pipeline fans are linked together, step four air heater exhaust pipe gets rid of preheated air and step five natural gas pipeline natural gas phase mixing, air heater exhaust pipe and natural gas pipeline junction are provided with the control valve.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.
Claims (5)
1. The steam production process of the gas steam boiler is characterized by comprising the following steps of:
the method comprises the following steps: performing soft water treatment, namely, enabling a water source to enter soft water treatment equipment through a pipeline for soft water treatment, and enabling the water source to enter a soft water tank for storage after the soft water treatment is finished;
step two: the water preheater is connected with the soft water tank through a pipeline, and water in the soft water tank flows into the water preheater for preheating treatment;
step three: the system comprises a water preheater, a thermal deaerator, a gas boiler and a gas-fired boiler, wherein the water preheater is connected with the thermal deaerator through a pipeline;
step four: the air preheater is used for preheating fresh air and is connected with the natural gas pipeline through a pipeline;
step five: the natural gas pipeline is connected with the gas boiler, the natural gas pipeline is connected with the air preheater pipeline, and the natural gas and the preheated air are mixed to form mixed natural gas;
step six: the system comprises a gas boiler, a natural gas pipeline and a thermal deaerator pipeline, wherein the gas boiler is connected with the natural gas pipeline and the thermal deaerator pipeline through pipelines, and mixed natural gas in the gas boiler is used for burning and evaporating water treated by the thermal deaerator to generate superheated steam and flue gas;
step seven: the gas-fired boiler is connected with the distribution superheated steam pipeline through a pipeline, and the superheated steam is discharged to the distribution superheated steam pipeline through the pipeline;
step eight: the flue gas pipeline is connected with the smoke exhaust pipeline of the gas-fired boiler; the flue gas pipeline is matched with the waste heat recovery system pipelines of the water preheater and the air preheater to form a waste heat recovery system.
2. A steam generation boiler steam production process according to claim 1, wherein the water pre-heaters from the soft water tank in the step one to the water pre-heater in the step two use water pumps, the water pre-heaters from the water pre-heater in the step two to the heat deaerator in the step three use water pumps, and the gas boilers from the heat deaerator in the step six use water pumps.
3. A gas steam boiler steam production process according to claim 1, wherein the step four air preheater is externally supplied with air by a fan, and the step four air preheater exhaust duct is communicated with the step five natural gas pipeline fan.
4. A gas steam boiler steam production process according to claim 1, wherein said step four air preheater exhaust ducts remove preheated air from mixing with step five natural gas pipeline natural gas phase.
5. A gas steam boiler steam production process according to claim 1, wherein a control valve is provided at the connection of the air preheater exhaust duct and the natural gas pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010506898.5A CN111623332A (en) | 2020-06-05 | 2020-06-05 | Steam production process of gas steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010506898.5A CN111623332A (en) | 2020-06-05 | 2020-06-05 | Steam production process of gas steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111623332A true CN111623332A (en) | 2020-09-04 |
Family
ID=72258372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010506898.5A Pending CN111623332A (en) | 2020-06-05 | 2020-06-05 | Steam production process of gas steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111623332A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984486A (en) * | 2021-02-26 | 2021-06-18 | 西安西热锅炉环保工程有限公司 | Energy-saving and emission-reducing system and method for small and medium-sized natural gas boilers |
| CN114110574A (en) * | 2021-12-03 | 2022-03-01 | 上海源晗能源技术有限公司 | Nitrogen-insulating combustion and CO for gas boiler2Trapping and utilizing process |
| CN114543067A (en) * | 2022-02-24 | 2022-05-27 | 东莞顺裕纸业有限公司 | Coal-to-gas station with improved air flow passage and improved heat energy utilization rate |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203501144U (en) * | 2013-08-09 | 2014-03-26 | 天津诺能达能源科技有限公司 | Waste heat recovery system for gas-fired boiler |
| CN104930485A (en) * | 2015-06-19 | 2015-09-23 | 上海优华系统集成技术股份有限公司 | Flue gas waste heat recovery system and recovery method and application thereof |
| CN207527620U (en) * | 2017-10-24 | 2018-06-22 | 青岛新奥清洁能源有限公司 | Gas-steam boiler flue gas waste heat recovery apparatus |
| CN208620331U (en) * | 2018-07-10 | 2019-03-19 | 四川永祥股份有限公司 | A kind of boiler energy recovery system |
| CN210197705U (en) * | 2019-06-28 | 2020-03-27 | 新奥数能科技有限公司 | Waste heat recovery device of gas boiler |
| CN111120980A (en) * | 2020-01-06 | 2020-05-08 | 华中科技大学 | Cogeneration system and method for realizing efficient waste heat recovery and low nitrogen emission |
-
2020
- 2020-06-05 CN CN202010506898.5A patent/CN111623332A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203501144U (en) * | 2013-08-09 | 2014-03-26 | 天津诺能达能源科技有限公司 | Waste heat recovery system for gas-fired boiler |
| CN104930485A (en) * | 2015-06-19 | 2015-09-23 | 上海优华系统集成技术股份有限公司 | Flue gas waste heat recovery system and recovery method and application thereof |
| CN207527620U (en) * | 2017-10-24 | 2018-06-22 | 青岛新奥清洁能源有限公司 | Gas-steam boiler flue gas waste heat recovery apparatus |
| CN208620331U (en) * | 2018-07-10 | 2019-03-19 | 四川永祥股份有限公司 | A kind of boiler energy recovery system |
| CN210197705U (en) * | 2019-06-28 | 2020-03-27 | 新奥数能科技有限公司 | Waste heat recovery device of gas boiler |
| CN111120980A (en) * | 2020-01-06 | 2020-05-08 | 华中科技大学 | Cogeneration system and method for realizing efficient waste heat recovery and low nitrogen emission |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112984486A (en) * | 2021-02-26 | 2021-06-18 | 西安西热锅炉环保工程有限公司 | Energy-saving and emission-reducing system and method for small and medium-sized natural gas boilers |
| CN114110574A (en) * | 2021-12-03 | 2022-03-01 | 上海源晗能源技术有限公司 | Nitrogen-insulating combustion and CO for gas boiler2Trapping and utilizing process |
| CN114110574B (en) * | 2021-12-03 | 2024-04-05 | 上海源晗能源技术有限公司 | Nitrogen-insulated combustion and CO of gas boiler 2 Trapping and utilizing process |
| CN114543067A (en) * | 2022-02-24 | 2022-05-27 | 东莞顺裕纸业有限公司 | Coal-to-gas station with improved air flow passage and improved heat energy utilization rate |
| CN114543067B (en) * | 2022-02-24 | 2024-03-22 | 东莞顺裕纸业有限公司 | Coal gas station with improved air flow passage and improved heat energy utilization rate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN111623332A (en) | Steam production process of gas steam boiler | |
| CN103244944B (en) | Air preheating system and method performing steam extraction by utilizing steam turbine | |
| CN103438427A (en) | Gas-fired boiler afterheat recovering system and recovering method | |
| CN201513877U (en) | Boiler energy saving system | |
| CN206846764U (en) | A kind of coal-fired hot-water boiler fume afterheat depth recovery system | |
| CN203249228U (en) | Air pre-heating system extracting steam through steam turbine | |
| CN203731368U (en) | Device for deep recovery of smoke discharge waste heat of waste heat boiler | |
| CN103644032A (en) | System for heating natural gas through gradient utilization of water supplied at medium pressure from waste heat boiler of gas turbine power plant | |
| CN107289428A (en) | For burning the device and method that sulphur UTILIZATION OF VESIDUAL HEAT IN and steam are produced in bromine water production | |
| CN204716317U (en) | The interactive start up system of a kind of generator set | |
| CN208042106U (en) | A kind of coal gas high-temperature high-voltage power generation system | |
| CN215259726U (en) | Condensation heating system suitable for high-temperature water supply | |
| CN109140492B (en) | Boiler smoke-wind coupling waste heat recovery system | |
| CN105526599B (en) | The upgrading of clean type coal-burning boiler smoke discharging residual heat utilizes system | |
| CN209959303U (en) | Internal combustion engine waste heat steam supplementing type power generation system | |
| CN110094897B (en) | Efficient and flexible interactive distributed energy supply system and operation method thereof | |
| CN209443226U (en) | Steam waste heat reclamation set | |
| CN204372887U (en) | A kind of residual heat from boiler fume recycling system | |
| CN208993146U (en) | A kind of co-generation unit of tire production line | |
| CN208419709U (en) | A kind of steam turbine of thermal power plant afterheat utilizing system | |
| CN101672468A (en) | Boiler energy-saving system and realizing method thereof | |
| CN106368915A (en) | Tower-type solar energy and fuel coal complementary power generation system | |
| CN111396160A (en) | Flue gas waste heat cogeneration system and cogeneration method | |
| CN215893336U (en) | Boiler flue gas waste heat recovery device | |
| CN204717661U (en) | A kind of industrial combustion gas steam generator system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20200904 |