CN219199236U

CN219199236U - Through-flow type boiler waste heat recovery device

Info

Publication number: CN219199236U
Application number: CN202223534206.1U
Authority: CN
Inventors: 姜来军; 任凤贵; 姜建平; 姜来宗; 姜来刚
Original assignee: Shandong Daxi Thermal Energy Equipment Co ltd
Current assignee: Shandong Daxi Thermal Energy Equipment Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-06-16
Anticipated expiration: 2032-12-29

Abstract

The utility model provides a through-flow type boiler waste heat recovery device which comprises an energy-saving device and a cooler, wherein a first smoke inlet chamber is arranged at the inner top of the energy-saving device, a connecting flue is connected with the first smoke inlet chamber, a first smoke outlet chamber is arranged at the bottom of the energy-saving device, a heat exchange cavity is arranged between the first smoke inlet chamber and the first smoke outlet chamber, a first connecting plate is arranged at the joint of the heat exchange cavity and the first smoke inlet chamber, a second connecting plate is arranged at the joint of the heat exchange cavity and the first smoke outlet chamber, a radiating pipe is arranged in the heat exchange cavity, the top of the radiating pipe is communicated with the first smoke inlet chamber and fixedly connected with the first connecting plate, and the bottom of the radiating pipe is communicated with the first smoke outlet chamber and fixedly connected with the second connecting plate. And a condenser is arranged on the right side of the energy economizer. The utility model fully utilizes the waste heat generated by boiler combustion. The flue gas is cooled, and the emission of nitrogen oxides is reduced.

Description

Through-flow type boiler waste heat recovery device

Technical Field

The utility model relates to the technical field of boilers, in particular to a through-flow type boiler waste heat recovery device.

Background

The boiler is an energy converter, which is a device for heating working medium water or other fluid to a certain parameter by using heat energy released by fuel combustion or other heat energy.

The boiler is an important heat energy supply device in national economy. The industries of electricity, machinery, metallurgy, chemical industry, textile, paper, food, etc., and industrial and domestic heating all require boilers to supply a large amount of heat energy.

In the combustion of the boiler, a large amount of high-temperature smoke is generated, and the smoke is directly emptied in the prior art, so that air is polluted, and a large amount of heat resources are wasted.

Disclosure of Invention

In order to solve the technical problems, the utility model is realized by the following technical scheme:

the utility model provides a tubular boiler waste heat recovery device, includes energy-saving appliance, condenser, the top is equipped with into smoke chamber one in the energy-saving appliance, advance smoke chamber one connection flue, the energy-saving appliance bottom is equipped with out smoke chamber one, advance and be equipped with the heat transfer chamber between smoke chamber one and the out smoke chamber one, heat transfer chamber and advance smoke chamber one junction and be equipped with connecting plate one, heat transfer chamber and out smoke chamber one junction be equipped with connecting plate two, the heat transfer intracavity is equipped with the cooling tube, the cooling tube top link up with advance smoke chamber one, and with connecting plate one fixed connection, the cooling tube bottom link up with out smoke chamber one, and with connecting plate two fixed connection.

A condenser is arranged on the right side of the energy-saving device, a smoke inlet chamber II, a condensation cavity and a smoke outlet chamber II are sequentially arranged in the condenser from the bottom to the top, and the smoke inlet chamber II is communicated with the smoke outlet chamber I; the smoke inlet chamber is characterized in that a first fixing plate is arranged at the joint of the smoke inlet chamber and the condensation chamber, a second fixing plate is arranged at the joint of the condensation chamber and the smoke outlet chamber, a condensation pipe is arranged in the condensation chamber, the top of the condensation pipe is fixedly connected with the second fixing plate and is communicated with the second smoke outlet chamber, and the bottom of the condensation pipe is fixedly connected with the first fixing plate and is communicated with the second smoke inlet chamber.

And the upper part of the condensation cavity is provided with a water outlet pipe which is connected with the heat exchange cavity.

The lower part of the right side of the condenser is provided with a cold water inlet, the cold water inlet is provided with a water inlet valve, and the bottom of the heat exchange cavity is connected with the water inlet end of the water pump.

As a preferable scheme, a smoke outlet is formed in the top of the smoke outlet chamber II, a condenser water outlet is formed in the upper right side of the condenser, and a condenser water outlet valve is arranged at the condenser water outlet.

Compared with the prior art, the utility model has the beneficial effects that: when the through-flow boiler waste heat recovery device works, the waste heat flue gas generated by boiler combustion is used for preheating cold water twice, and the waste heat generated by boiler combustion is fully utilized. The preheated water is heated up very fast in the boiler, steam can be generated within 10 to 15 seconds, and the use of the waste heat recovery device greatly shortens the time for generating steam in the boiler. The flue gas is cooled, and the emission of nitrogen oxides is reduced.

Drawings

The utility model is described in further detail below with reference to the attached drawings and detailed description:

fig. 1 is a schematic view of the connection structure of the present utility model.

Description of the embodiments

the utility model provides a tubular boiler waste heat recovery device, includes economizer 1, condenser 2, the top is equipped with into smoke chamber one 101 in the economizer 1, advance smoke chamber one 101 and connect flue 3, economizer 1 bottom is equipped with out smoke chamber one 102, advance and be equipped with heat exchange chamber 4 between smoke chamber one 101 and the out smoke chamber one 102, heat exchange chamber 4 and advance smoke chamber one 101 junction and be equipped with connecting plate one 5, heat exchange chamber 4 and go out smoke chamber one 102 junction and be equipped with connecting plate two 6, be equipped with cooling tube 7 in the heat exchange chamber 4, cooling tube 7 top and advance smoke chamber one 101 and link up, and with connecting plate one 5 fixed connection, cooling tube 7 bottom and out smoke chamber one 102 link up, and with connecting plate two 6 fixed connection.

A condenser 2 is arranged on the right side of the energy economizer 1, a second smoke inlet chamber 201, a condensation cavity 8 and a second smoke outlet chamber 202 are sequentially arranged in the condenser 2 from bottom to top, and the second smoke inlet chamber 201 is communicated with the first smoke outlet chamber 102; the smoke inlet chamber two 201 is provided with a first fixing plate 9 at the joint with the condensation chamber two 8, the joint between the condensation chamber 8 and the smoke outlet chamber two 202 is provided with a second fixing plate 10, a condensation pipe 11 is arranged in the condensation chamber 8, the top of the condensation pipe 11 is fixedly connected with the second fixing plate 10 and communicated with the smoke outlet chamber two 202, and the bottom of the condensation pipe 11 is fixedly connected with the first fixing plate 9 and communicated with the smoke inlet chamber two 201.

The upper part of the condensation cavity 8 is provided with a water outlet pipe 12, and the water outlet pipe 12 is connected with the heat exchange cavity 4. The water preheated in the condensation cavity 8 flows into the heat exchange cavity 4 through the water outlet pipe 12 for secondary preheating.

The lower right side of the condenser 2 is provided with a cold water inlet 13, the cold water inlet 13 is provided with a water inlet valve 14, and the bottom of the heat exchange cavity 4 is connected with the water inlet end of a water pump 15.

Further, a smoke outlet 16 is formed in the top of the second smoke outlet 202, a condenser water outlet 17 is formed in the upper right side of the condenser 2, and a condenser water outlet valve 18 is arranged at the condenser water outlet 17.

When the liquid level in the condensation cavity 8 is too high, the condenser water outlet valve 18 is opened to discharge a proper amount of liquid.

When the cross flow type boiler waste heat recovery device works, smoke generated by flame combustion in a boiler enters a smoke inlet chamber I101 of an energy saver 1 through a flue 3, enters each radiating pipe 7 through the smoke inlet chamber I101, flows downwards while radiating in the radiating pipes 7 due to the fact that the smoke continuously flows into the smoke inlet chamber I101, enters a smoke outlet chamber I102, enters a smoke inlet chamber II 201 communicated with the smoke outlet chamber I102, then enters a condensing pipe 11 from the smoke inlet chamber II 201, enters the smoke outlet chamber II 202 after radiating in the condensing pipe 11, and then is discharged from a smoke outlet 16 through low-nitrogen smoke after twice radiating.

Cold water is supplied into the condensation cavity 8 from the cold water inlet 13, exchanges heat with the flue gas in the condensation pipe 11 in the condensation cavity 8, flows into the heat exchange cavity 4 of the economizer 1, and exchanges heat with the flue gas in the heat dissipation pipe 7 for the second time.

The preheated water is pumped into the boiler by the water pump 15 after twice preheating, the preheated water is heated up very fast in the boiler, and steam can be generated within 10 to 15 seconds.

The use of the waste heat recovery device greatly shortens the time for generating steam in the boiler, and fully utilizes the waste heat generated by the combustion of the boiler.

The process also reduces the temperature of the flue gas and reduces the emission of nitrogen oxides.

The above detailed description of the embodiments of the present utility model has been given by way of example only, and the present utility model is not limited to the above described embodiments, and equivalent modifications are also within the scope of the present utility model.

Claims

1. The through-flow boiler waste heat recovery device is characterized by comprising an energy saver (1) and a condenser (2), wherein a first smoke inlet chamber (101) is arranged at the inner top of the energy saver (1), the first smoke inlet chamber (101) is connected with a flue (3), a first smoke outlet chamber (102) is arranged at the bottom of the energy saver (1), a heat exchange cavity (4) is arranged between the first smoke inlet chamber (101) and the first smoke outlet chamber (102), a first connecting plate (5) is arranged at the joint of the heat exchange cavity (4) and the first smoke inlet chamber (101), a second connecting plate (6) is arranged at the joint of the heat exchange cavity (4) and the first smoke outlet chamber (102), a radiating pipe (7) is arranged in the heat exchange cavity (4), the top of the radiating pipe (7) is communicated with the first smoke inlet chamber (101) and is fixedly connected with the first connecting plate (5), and the bottom of the radiating pipe (7) is communicated with the first smoke outlet chamber (102) and is fixedly connected with the second connecting plate (6).

A condenser (2) is arranged on the right side of the energy economizer (1), a smoke inlet chamber II (201), a condensation cavity (8) and a smoke outlet chamber II (202) are sequentially arranged in the condenser (2) from the bottom to the top, and the smoke inlet chamber II (201) is communicated with the smoke outlet chamber I (102); the smoke inlet chamber II (201) is fixedly connected with the fixing plate II (10) at the joint of the condensation chamber II (201) and the condensation chamber II (8), the fixing plate II (10) is arranged at the joint of the condensation chamber II (8) and the smoke outlet chamber II (202), the condensation chamber II (8) is internally provided with the condensation pipe (11), the top of the condensation pipe (11) is fixedly connected with the fixing plate II (10) and is communicated with the smoke outlet chamber II (202), and the bottom of the condensation pipe (11) is fixedly connected with the fixing plate I (9) and is communicated with the smoke inlet chamber II (201);

a water outlet pipe (12) is arranged at the upper part of the condensation cavity (8), and the water outlet pipe (12) is connected with the heat exchange cavity (4);

the right lower part of the condenser (2) is provided with a cold water inlet (13), the cold water inlet (13) is provided with a water inlet valve (14), and the bottom of the heat exchange cavity (4) is connected with the water inlet end of a water pump (15).

2. The through-flow boiler waste heat recovery device according to claim 1, wherein a smoke outlet (16) is formed in the top of the smoke outlet chamber II (202), a condenser water outlet (17) is formed in the upper right side of the condenser (2), and a condenser water outlet valve (18) is arranged at the condenser water outlet (17).