Boiler barrel type integrated boiler

Abstract

The utility model provides a drum type integrated boiler. The drum type integrated boiler comprises a burner, a drum, a steam-water separator, a water distribution system, a water treater and a softened water tank. A combustion chamber and a heat exchanger are arranged in the boiler barrel, the combustor is connected with the combustion chamber, and the steam-water separator is connected with the boiler barrel. The water treater produces softened water and stores the softened water in the softened water tank, and the softened water is conveyed to the condenser through the circulating pump for heat exchange. The boiler barrel is connected with the water distribution system, heat exchange water after heat exchange is fed into the energy saver through the water feeding pump, then returns to the boiler barrel and enters the steam-water separator through the water distribution system, the separated water is recycled, and steam is distributed to users through the steam distribution cylinder. According to the utility model, the design of the short flame burner and the integrated combustion chamber is adopted, so that low nitrogen oxide emission is realized; multi-stage waste heat recovery is carried out through the threaded smoke pipe, the energy saver and the condenser, and the smoke exhaust temperature is obviously reduced; the boiler barrel structure is adopted, and the requirement for boiler feed water quality is lowered.

Description

Technical Field

[0001] This utility model relates to the field of integrated boiler technology, and in particular to a drum-type integrated boiler. Background Technology

[0002] Traditional boiler auxiliaries (such as water treatment equipment, energy savers, steam distribution cylinders, etc.) are installed in a decentralized manner, requiring a large number of pipeline connections, resulting in long on-site construction cycles and high costs. According to TSG 11-2020 "Technical Regulations for Boiler Safety", the installation of non-integrated boilers requires qualifications and is subject to supervision and inspection, further increasing compliance costs.

[0003] Conventional boilers rely on high-precision water treatment (such as softening and deoxygenation) to avoid scaling and corrosion. They require continuous monitoring of indicators such as hardness and dissolved oxygen, resulting in high operation and maintenance costs. In addition, traditional boilers have a large water volume (about 5m³), long start-up and heating time, high natural gas consumption, and flue gas temperature often exceeds 100℃, resulting in low thermal efficiency. Utility Model Content

[0004] The purpose of this invention is to provide a drum-type integrated boiler to solve the problems of high start-up temperature and high water quality requirements in the prior art.

[0005] This utility model is achieved using the following technical solution: a boiler drum integrated boiler, characterized in that it includes a burner, a boiler drum, a steam-water separator, a water distribution system, a water processor, and a soft water tank; the boiler drum is equipped with a combustion chamber and a heat exchanger, the burner is connected to the combustion chamber, and the steam-water separator is connected to the boiler drum; the water processor is used to produce softened water and store it in the soft water tank, and the softened water is transported to the condenser for heat exchange via a circulating pump; the boiler drum is connected to the water distribution system, and the heat exchanged water is sent to the economizer via a feed water pump, then returned to the boiler drum and enters the steam-water separator through the water distribution system, the separated water is recycled, and the steam is distributed to users via a steam distribution cylinder.

[0006] Furthermore, the burner is a short-flame burner, and its flame pattern is matched with the structure of the combustion chamber.

[0007] Furthermore, the combustion chamber and heat exchanger are an integrated structure designed according to the flame pattern.

[0008] Furthermore, the burner uses natural gas as fuel. The flue gas generated by combustion enters the heat exchanger through the combustion chamber, and then passes through the tail flue, economizer and condenser in sequence to complete heat recovery before finally being discharged through the chimney.

[0009] Furthermore, the soft water tank is equipped with a water level gauge to monitor the water level and is linked to the burner through an interlocking control system to ensure the safe operation of the boiler.

[0010] Furthermore, the energy-saving device is connected between the boiler drum and the condenser to further recover waste heat from the flue gas; the effluent from the condenser is returned to the soft water tank via a circulating pump.

[0011] Furthermore, the start and stop of the circulating pump and the feed pump are controlled in concert by the water level gauge and the pressure parameters of the heat exchange system, thereby realizing the automated management of water circulation.

[0012] The advantages of the integrated drum boiler described in this utility model include:

[0013] The design employs a short-flame burner and an integrated combustion chamber to achieve NOx emission concentrations below 30 mg / m³.

[0014] Through multi-stage waste heat recovery via threaded smoke pipes, tail-end energy-saving devices, and condensers, the exhaust temperature is below 55℃.

[0015] The boiler adopts a drum structure, and the boiler water quality requirements are relatively low, only needing to meet GB / T1576-2018 "Industrial Boiler Water Quality". Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. The drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0017] Figure 1 This is a front view of a drum-type integrated boiler;

[0018] Figure 2 A top view of a drum-type integrated boiler;

[0019] In the diagram, 1-burner, 2-combustion chamber, 3-heat exchanger, 4-steam-water separator, 5-water distribution system, 6-energy saver, 7-chimney, 8-water processor, 9-soft water tank, 10-water level gauge, 11-circulation pump, 12-water supply pump, 13-gas cylinder. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0022] like Figure 1-2 As shown, an integrated boiler with a boiler drum includes a burner 1, a boiler drum, a steam-water separator 4, a water distribution system 5, a water processor 8, and a soft water tank 9. The boiler drum contains a combustion chamber 2 and a heat exchanger 3. The burner 1 is connected to the combustion chamber 2, and the steam-water separator 4 is connected to the boiler drum. The water processor 8 produces softened water, which is stored in the soft water tank 9. A circulating pump 11 transports the softened water from the soft water tank 9 to the condenser for heat exchange. The boiler drum is connected to the water distribution system 5. The heat-exchanged water, after heat exchange in the heat exchanger 2, is sent to the economizer 6 via a feed water pump 12, and then through the boiler drum and the water distribution system 5 into the steam-water separator 4. The separated water enters the circulation system, and steam is distributed to users via a steam distribution cylinder 13.

[0023] The boiler uses natural gas as fuel. The natural gas is burned in combustion chamber 2 via burner 1, producing flue gas. This flue gas then passes through heat exchanger 3 inside the boiler drum, enters the tail flue, then the economizer 6 and condenser, and finally enters the chimney before being discharged into the atmosphere. The NOx emissions are below 30 mg / m³. The flue gas temperature is below 55℃, meeting energy conservation and environmental protection requirements.

[0024] The burner 1 is a short-flame burner.

[0025] The combustion chamber 2 and the heat exchanger 3 are a combustion chamber and an integrated heat exchanger designed according to the flame pattern.

[0026] Tap water is softened by the water processor 8 and then enters the soft water tank 9. The softened water generates steam, which is discharged into the steam distribution cylinder 13 through the main steam pipe for user steam supply. The circulating pump 11 pumps circulating water back to the soft water tank 9 via the condenser. The soft water tank 9 is equipped with a water level gauge 10 to control the water level, which is interlocked with the burner 1. This meets boiler safety requirements.

[0027] The above embodiments describe the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Modifications and variations made by those skilled in the art without departing from the spirit and scope of this utility model should be protected within the scope of the appended claims.

Claims

1. A drum integrated boiler, characterized by, It includes a burner (1), a boiler drum, a steam-water separator (4), a water distribution system (5), a water processor (8), and a soft water tank (9); the boiler drum is equipped with a combustion chamber (2) and a heat exchanger (3), the burner (1) is connected to the combustion chamber (2), and the steam-water separator (4) is connected to the boiler drum; the water processor (8) is used to produce softened water and store it in the soft water tank (9), and the softened water is transported to the condenser for heat exchange through a circulating pump (11); the boiler drum is connected to the water distribution system (5), and the heat exchanged water is sent to the energy saver (6) by the feed water pump (12), and then returned to the boiler drum and entered the steam-water separator (4) through the water distribution system (5). The separated water is recycled, and the steam is distributed to users through the steam distribution cylinder (13).

2. A drum integrated boiler according to claim 1, wherein The burner (1) is a short flame burner, and its flame pattern matches the structure of the combustion chamber (2).

3. A shell and tube integrated boiler as claimed in claim 1 wherein, The combustion chamber (2) and the heat exchanger (3) are an integrated structure designed according to the flame pattern.

4. A shell-and-tube integrated boiler according to claim 1, wherein The burner (1) uses natural gas as fuel. The flue gas generated by combustion enters the heat exchanger (3) through the combustion chamber (2), and then passes through the tail flue, energy saver (6) and condenser in sequence to complete the heat recovery, and is finally discharged through the chimney.

5. A shell and tube integrated boiler as claimed in claim 1 wherein, The soft water tank (9) is equipped with a water level gauge (10) to monitor the water level and link it with the burner (1) through an interlocking control system to ensure the safe operation of the boiler.

6. A shell and tube integrated boiler as claimed in claim 1 wherein, The energy-saving device (6) is connected between the boiler drum and the condenser to further recover the waste heat of the flue gas; the water outlet of the condenser is returned to the soft water tank through the circulation pump (11).

7. A shell and tube integrated boiler as claimed in claim 6 wherein, The start and stop of the circulating pump (11) and the water supply pump (12) are controlled by the water level gauge (10) and the pressure parameters of the heat exchange system, so as to realize the automated management of water circulation.

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