CN223375766U - A SZS type steam boiler water preheating system - Google Patents
A SZS type steam boiler water preheating systemInfo
- Publication number
- CN223375766U CN223375766U CN202422838534.3U CN202422838534U CN223375766U CN 223375766 U CN223375766 U CN 223375766U CN 202422838534 U CN202422838534 U CN 202422838534U CN 223375766 U CN223375766 U CN 223375766U
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- boiler
- steam
- szs
- boiler water
- distribution pipe
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Abstract
The utility model relates to a boiler water preheating system of an SZS type steam boiler, which comprises the SZS type steam boiler, wherein the SZS type steam boiler consists of an upper boiler barrel, a lower boiler barrel and a convection current-receiving surface, steam distribution pipes are arranged in the lower boiler barrel and distributed along the length direction of the lower boiler barrel, and one end of each steam distribution pipe extending out of the lower boiler barrel is provided with an electric gate valve. According to the utility model, external steam is introduced to heat the water in the boiler, so that the water is kept at a certain temperature, and the boiler is in a hot standby state, so that the boiler can be started to full load in a short time, and the requirement of rapid peak shaving is met.
Description
Technical Field
The utility model relates to the technical field of industrial boilers, in particular to a boiler water preheating system of an SZS type steam boiler.
Background
In recent years, the fuel (gas) boiler has been widely replaced and widely applied and developed in various industries due to compact structure, convenient installation, automatic operation and environmental protection in emission. Because of energy and environmental protection policies, a large number of thermal power plants and heat source plants replace a start boiler and a peak shaving boiler with a gas boiler.
The existing common integral fuel oil (gas) boilers in the market are mostly SZS type-double-drum longitudinal D-type furnaces, namely, the hearth is arranged at the left side or the right side of the convection bank. The fuel generates high-temperature flue gas after combustion in the hearth, turns from the tail of the hearth, enters a convection tube bundle for heat exchange, and is discharged after further heat exchange through a tail heating surface (an economizer and a condenser). The boiler typically takes 60-90 minutes from ignition start-up to full load. The starting time is longer, and the effect of fast peak shaving of the thermal power plant and the heat source plant can not be well realized. Therefore, it is urgently needed to design a boiler water preheating system of an SZS type steam boiler, so that each heat source plant and thermal power plant can quickly start a peak shaving fuel oil (gas) boiler.
Disclosure of utility model
The utility model aims to overcome the defects, and provides a boiler water preheating system of an SZS type steam boiler, steam is led to enter a lower boiler barrel to heat boiler water through a steam distribution pipe arranged in the lower boiler barrel, the water temperature in the boiler is increased, and meanwhile, a temperature sensor is arranged on an upper boiler barrel to keep the temperature of the boiler water constant, so that the boiler is in a hot standby state for a long time, and the aim of quick start is fulfilled.
The purpose of the utility model is realized in the following way:
The utility model provides a SZS type steam boiler water preheating system, includes SZS type steam boiler, SZS type steam boiler comprises last drum, lower drum and convection current face, and the steam distribution pipe embeds in the lower drum, and distributes along lower drum length direction, the one end that the steam distribution pipe stretches out the lower drum is equipped with electric gate valve.
Preferably, the upper drum is provided with a temperature sensor, and the temperature sensor is electrically connected with the electric gate valve.
Preferably, steam outlet holes are uniformly distributed on the steam distribution pipe extending into the lower boiler barrel along the length direction.
Preferably, the steam outlet holes are symmetrically distributed on two sides of the bottom of the steam distribution pipe, and a plurality of steam outlet holes are uniformly distributed on each side along the length direction.
Preferably, the sum of the areas of the steam outlet holes is more than or equal to one half of the sectional area of the steam distribution pipe.
Preferably, the steam distribution pipe is immersed in the boiler water of the lower boiler barrel.
Preferably, one end of the steam distribution pipe extending out of the lower boiler barrel is also provided with a check valve.
The beneficial effects of the utility model are as follows:
Introducing external steam to heat the water in the boiler, keeping the water at a certain temperature, and keeping the boiler in a hot standby state, so as to realize starting to full load in a shorter time and meet the requirement of rapid peak shaving;
The electric gate valve is linked with the temperature sensor signal, so that the automatic start and stop of the electric gate valve are realized, the automatic operation of the furnace water preheating system is realized, the hot standby automation is realized, the start to full load in a shorter time is realized, and the requirement of rapid peak regulation is met.
Drawings
Fig. 1 is a schematic diagram of a boiler water preheating system of an SZS-type steam boiler according to embodiment 1 of the present utility model.
Fig. 2 is a schematic diagram of a boiler water preheating system of an SZS-type steam boiler according to embodiment 2 of the present utility model.
FIG. 3 is a schematic cross-sectional view of a steam distribution pipe according to the present utility model.
Wherein:
SZS type steam boiler 1, an upper boiler barrel 1.1, a lower boiler barrel 1.2, a convection current receiving surface 1.3, a steam distribution pipe 2, a steam outlet 2.1, an electric gate valve 3, a check valve 4 and a temperature sensor 5.
Detailed Description
Example 1
Referring to fig. 1 and 3, the utility model relates to a boiler water preheating system of an SZS type steam boiler, which comprises an SZS type steam boiler 1, steam distribution pipes 2, an electric gate valve 3 and a check valve 4, wherein the SZS type steam boiler 1 consists of an upper boiler barrel 1.1, a lower boiler barrel 1.2 and a convection current-carrying surface 1.3, the steam distribution pipes 2 are arranged in the lower boiler barrel 1.2 and distributed along the length direction of the lower boiler barrel 1.2, steam outlet holes 2.1 are arranged on the steam distribution pipes 2 extending into the lower boiler barrel 1.2, the steam outlet holes 2.1 are symmetrically distributed on two sides of the bottom of the steam distribution pipes 2, and a plurality of steam outlet holes 2.1 are uniformly distributed on each side along the length direction, so that the boiler water preheating efficiency is improved.
The sum of the areas of the steam outlet holes is more than or equal to one half of the sectional area of the steam distribution pipe.
One end of the steam distribution pipe 2.1 extending out of the lower boiler barrel 1.2 is provided with an electric gate valve 3 and a check valve 4, the electric gate valve 3 controls the steam supply amount, and the check valve 4 can effectively prevent the backflow of boiler water.
The steam distribution pipe 2 is immersed in the boiler water of the lower boiler barrel, so that the boiler water is heated by the steam convenient to convey, and the preheating efficiency is improved.
Working principle:
External steam enters the lower boiler barrel through the steam distribution pipe, the boiler water in the lower boiler barrel is heated and rises, the convection heating surface and the boiler water in the upper boiler barrel are gradually heated, all the boiler water in the boiler is heated to a set temperature, and the boiler is in a hot standby state, so that the boiler is started to be full in a short time, and the requirement of rapid peak regulation is met.
Example 2
Referring to fig. 2 and 3, the utility model relates to a boiler water preheating system of an SZS type steam boiler, which comprises an SZS type steam boiler 1, steam distribution pipes 2, an electric gate valve 3 and a check valve 4, wherein the SZS type steam boiler 1 consists of an upper boiler barrel 1.1, a lower boiler barrel 1.2 and a convection current-collecting surface 1.3, the steam distribution pipes 2 are arranged in the lower boiler barrel 1.2 and distributed along the length direction of the lower boiler barrel 1.2, steam outlet holes 2.1 are arranged on the steam distribution pipes 2 extending into the lower boiler barrel 1.2, the steam outlet holes 2.1 are symmetrically distributed on two sides of the bottom of the steam distribution pipes 2, and a plurality of steam outlet holes 2.1 are uniformly distributed on each side along the length direction.
The sum of the areas of the steam outlet holes is more than or equal to one half of the sectional area of the steam distribution pipe.
The upper boiler barrel 1.1 is provided with a temperature sensor 5, the temperature sensor 5 is electrically connected with the electric gate valve 3, when the boiler water is heated to a set temperature, the temperature sensor 5 feeds back a temperature signal to the controller, and the controller controls the electric gate valve to automatically start and stop, so that the automatic operation of the boiler water preheating is realized.
One end of the steam distribution pipe 2 extending out of the lower boiler barrel 1.2 is provided with an electric gate valve 3 and a check valve 4, the electric gate valve 3 controls the steam supply amount, and the check valve 4 can effectively prevent the backflow of boiler water.
Working principle:
External steam enters the lower boiler barrel through the steam distribution pipe, the boiler water in the lower boiler barrel is heated and rises, the convection heating surface and the boiler water in the upper boiler barrel are gradually heated, all the boiler water in the boiler is heated to the set temperature, the electric gate valve is linked with the temperature sensor signal, the automatic start and stop of the electric gate valve are realized, the automatic operation of a boiler water preheating system is realized, and the boiler is in a hot standby state, so that the boiler is started to be full in a short time, and the requirement of rapid peak shaving is met.
In addition to the above embodiments, the present utility model also includes other embodiments, and all technical solutions that are formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present utility model.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422838534.3U CN223375766U (en) | 2024-11-21 | 2024-11-21 | A SZS type steam boiler water preheating system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202422838534.3U CN223375766U (en) | 2024-11-21 | 2024-11-21 | A SZS type steam boiler water preheating system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN223375766U true CN223375766U (en) | 2025-09-23 |
Family
ID=97097743
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202422838534.3U Active CN223375766U (en) | 2024-11-21 | 2024-11-21 | A SZS type steam boiler water preheating system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN223375766U (en) |
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2024
- 2024-11-21 CN CN202422838534.3U patent/CN223375766U/en active Active
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