Boiler water waste heat recovery system of soot blowing system
By designing a waste heat recovery system for the boiler water in the soot blowing system, and using a return pipe to introduce condensate into the deaerator, the problem of energy waste caused by directly discharging the heated circulating water into the air was solved, achieving effective heat recovery and coordinated development of environmental protection.
Patent Information
- Application Number
- CN202520123980.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2035-01-20
AI Technical Summary
In soot blowing systems, the direct discharge of heated circulating water leads to energy waste and heat loss, and existing technologies have failed to effectively recover the heat energy from the wastewater.
Design a waste heat recovery system for boiler water in a soot blowing system. The system introduces condensate into the deaerator through a return pipe to achieve effective recovery of heat and medium. The system includes components such as a return branch, a pressure reducing device, and spray heads.
It has improved energy efficiency, reduced energy waste, lowered greenhouse gas emissions, reduced wastewater pollution, and achieved coordinated development of industrial production and environmental protection.
Smart Images
Figure CN223564214U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to a waste heat recovery technical field, concretely relates to a soot blowing system boiler water waste heat recovery system. BACKGROUND
[0002] At present, the soot blowing system needs circulating water to heat up to control temperature in the operation process, and the water after heat exchange is directly emptied, which not only causes a large amount of energy waste, but also leads to heat loss. This phenomenon is particularly prominent in industrial production, especially in the current energy cost rising, efficient use of energy is particularly important. The technical personnel are faced with the problem of how to efficiently recover and utilize the heat energy in waste water, and its solution will have a profound impact on the economic benefit and sustainable development of enterprises.
[0003] The heat energy in waste water contains huge energy, if it can be effectively recovered, not only can reduce the consumption of other energy, but also can reduce the production cost of enterprises, the heat contained can be fully utilized, which will greatly reduce the dependence on traditional energy such as fossil fuel, so as to realize the saving and optimization of energy. In addition, the effective utilization of waste water heat energy also has significant environmental benefits. A large amount of greenhouse gas emission will be produced in the traditional energy consumption process, and by recovering the heat energy in waste water, the combustion of fossil fuel can be reduced, so as to reduce the emission of greenhouse gas and slow down global climate change. At the same time, the recycling of waste water heat energy can also reduce the pollution of waste water discharge to the environment, realize the coordinated development of industrial production and environmental protection. The technical personnel need to deeply study the characteristics of waste water, develop efficient and reliable heat energy recovery technology, so as to realize the maximum utilization of waste water heat energy. UTILITY MODEL CONTENTS
[0004] In order to solve the problem of waste of waste water heat energy;
[0005] The utility model provides a soot blowing system boiler water waste heat recovery system, including soot blowing system and deaerating system;
[0006] The soot blowing system includes left side hearth front side furnace wall trap, right side hearth rear side furnace wall trap and air preheater trap, also includes backflow pipeline intercommunication deaerating system, the left side hearth front side furnace wall trap sets up first backflow branch, the right side hearth rear side furnace wall trap sets up second backflow branch, the air preheater trap sets up third backflow branch, the backflow pipeline is parallelly connected first backflow branch, second backflow branch and third backflow branch;
[0007] The deaerating system includes deaerator and unit, and the deaerator is connected with the unit through a steam balance pipeline, and the backflow pipeline is connected with the steam balance pipeline.
[0008] As a preferred solution, a waterproof pipe is arranged at the low point of the return pipe.
[0009] As a preferred solution, a pressure reducing device is arranged to communicate the return branch pipe with the left-side furnace front sidewall drain, the right-side furnace rear sidewall drain and the air preheater drain.
[0010] As a preferred solution, a double valve is arranged at the position where the return pipe communicates with the steam balance pipe.
[0011] As a preferred solution, the part of the return pipe between the deaerator of the steam balance pipe and the double valve is communicated with the steam balance pipe.
[0012] As a preferred solution, an overflow valve is arranged at the left-side furnace front sidewall drain, the right-side furnace rear sidewall drain and the air preheater drain.
[0013] As a preferred solution, a spray head is arranged at the position where the return pipe communicates with the steam balance pipe.
[0014] The utility model has the advantages that:
[0015] The utility model has the advantages that: BRIEF DESCRIPTION OF DRAWINGS
[0016] In order to make the content of the utility model more easily understood clearly, the utility model is further explained in detail below according to specific embodiments and in conjunction with the drawings, wherein
[0017] Figure 1 The utility model is a structural schematic diagram.
[0018] Reference numerals in the drawings are:
[0019] 1, left-side furnace front sidewall drain; 2, right-side furnace rear sidewall drain; 3, air preheater drain; 4, return pipe; 5, deaeration system; 6, first return branch pipe; 7, second return branch pipe; 8, third return branch pipe; 9, unit; 10, steam balance pipe; 11, pressure reducing device; 12, spray head; 13, waterproof pipe. DETAILED DESCRIPTION
[0020] To illustrate the characteristics of the present application, the present application will be further described below in conjunction with the accompanying drawings and examples.
[0021] Embodiment:
[0022] Please refer to Figure 1 The present application provides a soot blowing system and a boiler water waste heat recovery system.
[0023] The soot blowing system comprises a left-side front-side furnace wall drain 1, a right-side rear-side furnace wall drain 2 and an air preheater drain 3, and further comprises a reflux pipeline 4 connected to the deaerating system 5.
[0024] The deaerating system 5 comprises a deaerator and a unit 9, and the deaerator is connected to the unit 9 through a steam balance pipeline 10.
[0025] Preferably, the low point of the reflux pipeline 4 is provided with a waterproof pipeline, and the waterproof pipeline is provided with a double-layer valve.
[0026] Preferably, the left-side front-side furnace wall drain 1, the right-side rear-side furnace wall drain 2 and the air preheater drain 3 are provided with a pressure reducing device 11 connected to the reflux branch.
[0027] Preferably, the steam balance pipeline 10 connected to the unit 9 is provided with a double-layer valve.
[0028] Preferably, the part of the reflux pipeline 4 connected to the deaerator and the double-layer valve of the steam balance pipeline 10.
[0029] Preferably, the left-side front-side furnace wall drain 1, the right-side rear-side furnace wall drain 2 and the air preheater drain 3 are provided with an overflow valve.
[0030] Preferably, the position of the reflux pipeline 4 connected to the steam balance pipeline 10 is provided with a spray head 12.
[0031] The above examples and drawings are only used to illustrate the technical scheme of the utility model, and are not a limitation on the utility model, and the utility model is described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model. Other related technical structures not described in detail in the utility model are the existing technology in the art.
Claims
1. A waste heat recovery system for boiler water in a soot blowing system, characterized in that, Including soot blowing system and deoxygenation system; The soot blowing system includes a left furnace front wall drain, a right furnace rear wall drain and an air preheater drain, and also includes a return pipe connected to the deaeration system. The left furnace front wall drain is provided with a first return branch, the right furnace rear wall drain is provided with a second return branch, and the air preheater drain is provided with a third return branch. The return pipe is connected in parallel with the first return branch, the second return branch and the third return branch. The deaeration system includes a deaerator and a generator unit. The deaerator is connected to the generator unit via a steam balance pipeline, and the return pipeline is connected to the steam balance pipeline.
2. The waste heat recovery system for soot blowing system as described in claim 1, characterized in that, A waterproof pipe is installed at the lowest point of the return pipe, and the waterproof pipe is equipped with a double-layer valve.
3. The waste heat recovery system for the soot blowing system as described in claim 1, characterized in that, The left furnace front wall drain, the right furnace rear wall drain, and the air preheater drain are equipped with pressure reducing devices connected to the return branch.
4. The waste heat recovery system for the soot blowing system as described in claim 1, characterized in that, The steam balance pipeline connecting the unit is equipped with double-layer valves.
5. The waste heat recovery system for the soot blowing system as described in claim 4, characterized in that, The return pipe connects the section between the deaerator and the double-layer valve in the steam balance pipe.
6. The waste heat recovery system for soot blowing system as described in claim 1, characterized in that, Overflow valves are provided for the left furnace front wall drain, the right furnace rear wall drain, and the air preheater drain.
7. The waste heat recovery system for soot blowing system as described in claim 1, characterized in that, A spray head is installed at the location where the return pipe connects to the vapor balance pipe.