CN217763525U - Primary air preheater heating drainage system - Google Patents
Primary air preheater heating drainage system Download PDFInfo
- Publication number
- CN217763525U CN217763525U CN202221132233.3U CN202221132233U CN217763525U CN 217763525 U CN217763525 U CN 217763525U CN 202221132233 U CN202221132233 U CN 202221132233U CN 217763525 U CN217763525 U CN 217763525U
- Authority
- CN
- China
- Prior art keywords
- preheater
- pressure preheater
- pressure
- low
- preheating
- 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.)
- Active
Links
- 238000010438 heat treatment Methods 0.000 title claims abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 66
- 230000000149 penetrating effect Effects 0.000 claims abstract description 9
- 230000002209 hydrophobic effect Effects 0.000 claims description 8
- WYTGDNHDOZPMIW-RCBQFDQVSA-N alstonine Natural products C1=CC2=C3C=CC=CC3=NC2=C2N1C[C@H]1[C@H](C)OC=C(C(=O)OC)[C@H]1C2 WYTGDNHDOZPMIW-RCBQFDQVSA-N 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000001105 regulatory effect Effects 0.000 claims description 3
- 238000000605 extraction Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 description 5
- 239000002699 waste material Substances 0.000 description 4
- 239000012535 impurity Substances 0.000 description 3
- 230000008520 organization Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
A heating and draining system of a primary air preheater comprises a preheater and a steam trap without steam exhaust, wherein an input port and an output port are respectively arranged on two sides of the preheater, and a high-pressure preheater I, a low-pressure preheater I, a high-pressure preheater II with a snake-shaped design structure and a low-pressure preheater II with a snake-shaped design structure are sequentially arranged in the preheater from the output port to the input port; a first preheating cavity and a plurality of first preheating pipes penetrating through the first preheating cavity are arranged in the first high-pressure preheater and the first low-pressure preheater, and a second preheating cavity and a second snake-shaped preheating pipe penetrating through the second preheating cavity are arranged in the second high-pressure preheater and the second low-pressure preheater; and outlets of the snake-shaped preheating pipes of the high-pressure preheater II and the low-pressure preheater II are communicated with a water inlet pipeline of the steam-discharge-free steam trap. The cooperation of preheater and no steam extraction steam trap can enough improve steam and hot water to the preheat time of primary air, can avoid steam to be arranged outward again and extravagant, energy saving and emission reduction, the thermal efficiency is high.
Description
Technical Field
The utility model relates to a wind preheats technical field, especially a wind air heater heating drainage system.
Background
The primary air is air fed from the lower part of a grate when a grate-fired furnace burns, generally the primary air plays a leading role in the burning of the boiler, and an air preheater is generally used for preheating the primary air in order to ensure the burning effect of the boiler, however, the existing air preheater for the primary air has two defects, firstly, partial steam input into the air preheater moves too much, the heat exchange is insufficient, the heat in the steam is not completely utilized, and the overall utilization rate of the steam is low; secondly, the existing air preheating generally utilizes a drain valve to drain water, the effect of a steam trap is insufficient, some steam is directly discharged, and the waste of resources is caused.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that to prior art not enough, provide a can effectively improve steam utilization ratio, reduce the once wind air heater heating drainage system of wasting of resources volume.
The technical problem to be solved by the utility model is realized through the following technical scheme. The utility model relates to a primary air preheater heating drainage system, which comprises a preheater and a steam trap without steam discharge, wherein both sides of the preheater are respectively provided with an input port and an output port, and a high-pressure preheater I, a low-pressure preheater I, a high-pressure preheater II with a snake-shaped design structure and a low-pressure preheater II with a snake-shaped design structure are sequentially arranged in the preheater between the output port and the input port;
a first preheating cavity and a plurality of first preheating pipes penetrating through the first preheating cavity are arranged in the first high-pressure preheater and the first low-pressure preheater, and a second preheating cavity and a second snake-shaped preheating pipe penetrating through the second preheating cavity are arranged in the second high-pressure preheater and the second low-pressure preheater of the snake-shaped design structure respectively; the output port is communicated with the input port through a first preheating cavity of the first high-pressure preheater, a first preheating cavity of the first low-pressure preheater, a second preheating cavity of the second high-pressure preheater with a snake-shaped design structure and a second preheating cavity of the second low-pressure preheater with a snake-shaped design structure; the inlet of the first preheating pipe of the first high-pressure preheater is externally connected with high-pressure steam, the inlet of the second snake-shaped preheating pipe of the second high-pressure preheater with a snake-shaped design structure is communicated with the outlet of the first preheating pipe of the first high-pressure preheater, the inlet of the first preheating pipe of the first low-pressure preheater is externally connected with low-pressure steam, the inlet of the second snake-shaped preheating pipe of the second low-pressure preheater with a snake-shaped design structure is communicated with the outlet of the first preheating pipe of the first low-pressure preheater,
and outlets of the second high-pressure preheater with the snake-shaped design structure and the second snake-shaped preheating pipe of the second low-pressure preheater with the snake-shaped design structure are both communicated with a water inlet pipeline of the steam-discharge-free steam trap.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, to above a wind air heater heating drainage system, no steam extraction steam trap includes the storage water tank, and the top intercommunication of storage water tank has the inlet channel, and the bottom intercommunication of storage water tank has drainage pipe, and the intercommunication has hydrophobic pipeline on drainage pipe, installs the level gauge on the storage water tank, installs the hydrophobic governing valve that sets up with the level gauge linkage on hydrophobic pipeline.
The utility model discloses the technical problem that will solve can also further realize through following technical scheme, to above a wind air heater heating drainage system, still install the filter screen in the storage water tank of drainage pipe department.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the second high-pressure preheater with the snake-shaped design structure and the second low-pressure preheater with the snake-shaped design structure are both internally provided with the second snake-shaped preheating pipe penetrating through the second preheating cavity, so that the steam and hot water input into the second snake-shaped preheating pipe are prevented from being output firstly, the moving time of the steam and the hot water in the second snake-shaped preheating pipe is ensured to be long enough, the primary air is preheated more fully, and the utilization rate is high;
2. this application sets up no steam extraction steam trap and handles steam and the hot water of preheater output, can realize only hydrophobic not steam extraction, reduces heat energy and working medium loss to reduce the waste of resource as far as.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
To make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the attached drawings of the present invention are combined to clearly and completely describe the technical solution in the embodiments of the present invention, and obviously, the described embodiments are part of the embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, a primary air preheater heating and draining system comprises a preheater 1 and a steam trap without steam exhaust, wherein an input port 2 and an output port 3 are respectively arranged on two sides of the preheater 1, and a high-pressure preheater I4, a low-pressure preheater I6, a high-pressure preheater II 5 with a snake-shaped design structure and a low-pressure preheater II 7 with a snake-shaped design structure are sequentially arranged in the preheater 1 between the output port 3 and the input port 2; the preheater 1 is used for inputting steam, and primary air is preheated for four times by utilizing the first high-pressure preheater 4, the first low-pressure preheater 6, the second high-pressure preheater 5 with the snake-shaped design structure and the second low-pressure preheater 7 with the snake-shaped design structure, so that the preheating effect is ensured; the steam is subjected to heat exchange with primary air in the preheater 1 to be cooled to form hot water and steam, and the steam trap without steam discharge is used for receiving the hot water and the steam, so that only water is discharged without steam discharge, thereby avoiding the discharge of the steam and reducing the waste of resources as much as possible;
a first preheating cavity 8 and a plurality of first preheating pipes 9 penetrating through the first preheating cavity 8 are arranged in the first high-pressure preheater 4 and the first low-pressure preheater 6 respectively, and a second preheating cavity 10 and a second serpentine preheating pipe 11 penetrating through the second preheating cavity 10 are arranged in the second high-pressure preheater 5 and the second low-pressure preheater 7 of the serpentine design structure respectively; the output port 3 is communicated with the input port 2 through a first preheating cavity 8 of a first high-pressure preheater 4, a first preheating cavity 8 of a first low-pressure preheater 6, a second preheating cavity 10 of a second high-pressure preheater 5 with a snake-shaped design structure and a second preheating cavity 10 of a second low-pressure preheater 7 with a snake-shaped design structure; the inlet of a first preheating pipe 9 of a first high-pressure preheater 4 is externally connected with high-pressure steam, the inlet of a second snake-shaped preheating pipe 11 of a second high-pressure preheater 5 with a snake-shaped design structure is communicated with the outlet of the first preheating pipe 9 of the first high-pressure preheater 4, the inlet of the first preheating pipe 9 of the first low-pressure preheater 6 is externally connected with low-pressure steam, the inlet of the second snake-shaped preheating pipe 11 of the second low-pressure preheater 7 with the snake-shaped design structure is communicated with the outlet of the first preheating pipe 9 of the first low-pressure preheater 6, so that the external high-pressure steam is firstly input into the first preheating pipe 9 of the first high-pressure preheater 4 and then input into the second preheating pipe 11 of the second low-pressure preheater 7 with the snake-shaped design structure, and the primary air input through the input port 2 sequentially passes through the second preheating chambers 10 of the second low-pressure preheater 7 with the snake-shaped design structure, the second preheating chambers 10 of the second snake-shaped preheater 5 with the snake-shaped design structure, the first preheating chambers 8 of the first low-pressure preheater 6, the first preheating chambers 8 of the first high-pressure preheater 4 and then is output from the low-pressure preheater 3, and the primary air passes through the first preheating chamber output port, the first low-pressure preheater 5, the second preheating chamber 6, the first low-pressure preheater 5 and the second preheating chamber 6 is effectively treated with the low-pressure preheater 5, and the high-pressure preheater 4, and the high-pressure preheater, and the low-pressure preheater 5, and the hot water treatment effect is guaranteed; because only one snake-shaped preheating pipe II 11 is arranged in each of the high-pressure preheater II 5 with the snake-shaped design structure and the low-pressure preheater II 7 with the snake-shaped design structure, the steam and the hot water which are input firstly are output firstly, and the steam and the hot water which are input secondly are output later, so that the steam, the hot water and the primary air are effectively ensured to be output outwards after being subjected to sufficient heat exchange and cooling, the heat can be fully released, the utilization rate of the heat is improved, in addition, the water in all the inlet pipes can be dynamically and continuously output outwards, the retention condition can not occur, and the comprehensive and uniform preheating treatment on the primary air can be realized;
two 11 exports of snakelike preheating pipe of two 5 of high-pressure preheater of snakelike project organization and two 7 of low-pressure preheater of snakelike project organization all communicate with inlet channel 13 of no steam extraction steam trap for steam and hot water after will being to primary air preheating treatment outwards export no steam extraction steam trap, and be convenient for utilize no steam extraction steam trap to steam and the hydrophobic processing of hot water of output, accomplish only hydrophobic not steam extraction, thereby avoid steam to arrange outward, reduce the waste of resource as far as.
The steam trap without steam exhaust comprises a water storage tank 12, the top of the water storage tank 12 is communicated with a water inlet pipeline 13, the bottom of the water storage tank 12 is communicated with a water drainage pipeline 14, the water drainage pipeline 14 is communicated with a water drainage pipeline 15, the water storage tank 12 is provided with a liquid level meter 17, and the water drainage pipeline 15 is provided with a water drainage regulating valve 16 which is arranged in a linkage manner with the liquid level meter 17. The water storage tank 12 is used for containing steam and hot water output by the preheater 1, the water inlet pipeline 13 is used for conveying the steam and the hot water output by the preheater 1 into the water storage tank 12, the drainage pipeline 14 and the drainage pipeline 15 are used for outputting the hot water in the water storage tank 12 outwards, and under a general condition, the drainage pipeline 14 is closed and only outputs the hot water outwards through the drainage pipeline 15; the hot water entering the water storage tank 12 can seal the communication part of the water drainage pipeline 14 and the water storage tank 12 to avoid steam leakage; the drain control valve 16 is arranged in linkage with the liquid level meter 17, the on-off of the drain control valve 16 is controlled according to the water level of the water storage tank 12 detected by the liquid level meter 17, and then water is drained outwards through the drain pipeline 15, a certain amount of water is reserved in the water storage tank 12 during water drainage, and the steam entering the water storage tank 12 is prevented from leaking outwards through the drain pipeline 15, so that the effect that only water is drained and no steam is exhausted is realized;
preferably, a filter screen 18 is further installed in the water storage tank 12 at the position of the water discharge pipeline 14, and is used for filtering the water output by the water discharge pipeline 14, so as to prevent the impurities entering the water storage tank 12 from being discharged outwards, thereby not only preventing the impurities from being discharged outwards to cause pollution, but also protecting the drain regulating valve 16, but also cleaning the water storage tank 12 regularly in the follow-up process to intensively treat the impurities in the water storage tank 12.
Claims (3)
1. The utility model provides a primary air preheater heating drainage system which characterized in that: the system comprises a preheater and a steam trap without exhaust steam, wherein an input port and an output port are respectively arranged on two sides of the preheater, and a high-pressure preheater I, a low-pressure preheater I, a high-pressure preheater II with a snake-shaped design structure and a low-pressure preheater II with a snake-shaped design structure are sequentially arranged in the preheater between the output port and the input port;
a first preheating cavity and a plurality of first preheating pipes penetrating through the first preheating cavity are arranged in the first high-pressure preheater and the first low-pressure preheater, and a second preheating cavity and a second snake-shaped preheating pipe penetrating through the second preheating cavity are arranged in the second high-pressure preheater and the second low-pressure preheater of the snake-shaped design structure respectively;
the output port is communicated with the input port through a first preheating cavity of the first high-pressure preheater, a first preheating cavity of the first low-pressure preheater, a second preheating cavity of the second high-pressure preheater with a snake-shaped design structure and a second preheating cavity of the second low-pressure preheater with a snake-shaped design structure;
the inlet of the first preheating pipe of the first high-pressure preheater is externally connected with high-pressure steam, the inlet of the second serpentine preheating pipe of the second high-pressure preheater of the serpentine design structure is communicated with the outlet of the first preheating pipe of the first high-pressure preheater, the inlet of the first preheating pipe of the first low-pressure preheater is externally connected with low-pressure steam, the inlet of the second serpentine preheating pipe of the second low-pressure preheater of the serpentine design structure is communicated with the outlet of the first preheating pipe of the first low-pressure preheater,
and outlets of the second high-pressure preheater with the snake-shaped design structure and the second snake-shaped preheating pipe of the second low-pressure preheater with the snake-shaped design structure are both communicated with a water inlet pipeline of the steam-discharge-free steam trap.
2. The primary air preheater heating hydrophobic system of claim 1, wherein: the steam trap without exhaust comprises a water storage tank, the top of the water storage tank is communicated with a water inlet pipeline, the bottom of the water storage tank is communicated with a drainage pipeline, the drainage pipeline is communicated with a drainage pipeline, a liquid level meter is installed on the water storage tank, and a drainage regulating valve which is linked with the liquid level meter is installed on the drainage pipeline.
3. The primary air preheater heated hydrophobic system of claim 2, wherein: a filter screen is also arranged in the water storage tank at the drainage pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221132233.3U CN217763525U (en) | 2022-05-12 | 2022-05-12 | Primary air preheater heating drainage system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221132233.3U CN217763525U (en) | 2022-05-12 | 2022-05-12 | Primary air preheater heating drainage system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217763525U true CN217763525U (en) | 2022-11-08 |
Family
ID=83883445
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221132233.3U Active CN217763525U (en) | 2022-05-12 | 2022-05-12 | Primary air preheater heating drainage system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217763525U (en) |
-
2022
- 2022-05-12 CN CN202221132233.3U patent/CN217763525U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207179623U (en) | A kind of boiler start-up system | |
| CN206548828U (en) | A kind of autoclaving tank | |
| CN207179624U (en) | A kind of Start-up Systems for Direct-through Boilers | |
| CN202494345U (en) | Industrial furnace waste heat recovery system | |
| CN103657329A (en) | Yellow phosphorus exhaust gas centralized control, recycling and purifying device | |
| CN217763525U (en) | Primary air preheater heating drainage system | |
| CN207230506U (en) | A kind of novel environment friendly steam boiler | |
| CN101825399B (en) | Method and device for utilizing exhaust heat of waste gas in sinter cooler | |
| CN210564782U (en) | Gas turbine gas heating system that admits air | |
| CN207673389U (en) | A kind of efficient heating system of cogeneration units based on back pressure machine | |
| CN207831332U (en) | The micro- stove heat system quickly started for Subcritical Units | |
| CN206648013U (en) | A kind of economical gas steam boiler heating system | |
| CN110779346A (en) | Steam box tail gas heat recovery system | |
| CN206066679U (en) | Electric pole steam curing device | |
| CN205261518U (en) | Steaming system | |
| CN209876889U (en) | Waste heat boiler drum continuous sewage discharge waste heat utilization system | |
| CN211926561U (en) | Water channel type steam box tail gas heat recovery system applied to plate heat exchanger | |
| CN207962614U (en) | Boiler pressurization water replanishing device | |
| CN206269360U (en) | A kind of waste heat recovery power economized boiler | |
| CN215637106U (en) | Garbage pool heat supply system for garbage incineration power plant | |
| CN215829082U (en) | Safe drainage device of overflow machine | |
| CN220249958U (en) | Parallel external steam supply device for electric boiler and reheat steam | |
| CN204534541U (en) | A kind of residual heat from boiler fume utilizes system | |
| CN217499695U (en) | Forming machine pipeline for dividing inlet steam and return water of radiator | |
| CN212227003U (en) | Improved gas condensing steam boiler water supply system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: Heating and drainage system of primary air preheater Granted publication date: 20221108 Pledgee: Bank of Nanjing Co.,Ltd. Lianyungang Branch Pledgor: Lianyungang Wanda power station auxiliary equipment Co.,Ltd. Registration number: Y2024980014482 |