CN210486113U

CN210486113U - Finned cast aluminum condensation heat exchanger

Info

Publication number: CN210486113U
Application number: CN201921089504.XU
Authority: CN
Inventors: 吴德忠
Original assignee: Jiangsu Yemao Kitchen & Bath Technology Co ltd
Current assignee: Jiangsu Yemao Kitchen & Bath Technology Co ltd
Priority date: 2019-07-12
Filing date: 2019-07-12
Publication date: 2020-05-08
Anticipated expiration: 2029-07-12

Abstract

The utility model relates to a fin type cast aluminum condensation heat exchanger, wherein a combustion chamber is arranged at the bottom of a fixed frame; the fire rows are arranged on the fixing frame side by side; the main gas pipe is arranged at the top of the fixing frame, the gas inlet pipe is arranged on the main gas pipe, and gas distribution pipes which correspond to the inlets of the fire grate in a one-to-one mode are arranged on the inner side of the main gas pipe; the primary heat exchange tube and the secondary heat exchange tube are arranged at the lower part of the combustion chamber, the primary heat exchange tube is positioned above the secondary heat exchange tube and communicated with the secondary heat exchange tube, the fins are sleeved on the primary heat exchange tube and the secondary heat exchange tube, the condensation heat exchange tube is arranged at the bottom of the combustion chamber and communicated with the secondary heat exchange tube, and a condensate water recovery disc is arranged at the bottom of the condensation heat exchange tube; the first-stage heat exchange tube, the second-stage heat exchange tube, the condensation heat exchange tube, the fins and the condensate water recovery disc are all made of aluminum. The water-cooling thick and thin burner of the utility model is acid-resistant and not easy to corrode; the high-temperature flue gas realizes three-stage heat exchange by adopting a reverse burning mode and utilizing the inertia of airflow, and the heat exchange efficiency is high.

Description

Finned cast aluminum condensation heat exchanger

Technical Field

The utility model relates to a fin formula cast aluminum condensation heat exchanger. In particular to a fin type cast aluminum condensation heat exchanger for a wall-hanging furnace. Belongs to the technical field of heat exchangers.

Background

The wall-mounted boiler is a gas wall-mounted boiler, which is called a gas wall-mounted heating boiler for short and is a water heater using natural gas as energy. The wall-mounted gas stove has a powerful household central heating function, each room can be set at a comfortable temperature at will according to requirements, and large-flow constant-temperature sanitary hot water can be provided for household bathing and kitchen places.

The wall-mounted furnace with the condensing heat exchanger has high heat efficiency, saves energy and is environment-friendly and is more and more popular among users. The principle of condensation refers to that high-temperature flue gas releases heat in the process of meeting condensation, and the condensation technology is to fully collect the heat so as to increase the heating heat. Energy in the waste gas is recycled by condensing the flue gas, and the net heat value is increased, so that the thermal efficiency reaches 107%, the gas quantity is reduced, the energy consumption is greatly saved, and the energy consumption is saved by 15% compared with a common wall-mounted furnace.

After the gas of the wall-hanging stove with the condensing heat exchanger is completely combusted, the smoke is completely cooled to the original temperature, and the water vapor in the gas is discharged in a condensing state to generate heat. The existing condensing wall-hanging stove has the following problems: 1. the flue gas contains three-atom gas RO, wherein the main component of RO is CO₂And SO₂Therefore, the condensed water contains acid, and the common copper pipe is not acid-resistant in heat exchange and is easy to corrode; 2. the existing wall-mounted furnace with the condensing heat exchanger adopts a bottom-burning type, which is not beneficial to the heat exchange of flue gas; 3. the existing wall-mounted furnace with the condensing heat exchanger has few heat exchange areas and cannot fully utilize resources.

Disclosure of Invention

The utility model aims to overcome the above-mentioned not enough, provide a fin formula cast aluminum condensation heat exchanger.

The purpose of the utility model is realized like this:

a fin type cast aluminum condensation heat exchanger is characterized in that: the combustion chamber is arranged at the bottom of the fixing frame; the fire rows are arranged on the fixing frame side by side, and a gap is reserved between every two adjacent fire rows;

the main gas pipe is arranged at the top of the fixing frame, the gas inlet pipe is arranged on the main gas pipe, a plurality of gas distribution pipes are arranged on the inner side of the main gas pipe, and the plurality of gas distribution pipes correspond to the inlets of the plurality of fire grates one by one respectively;

the first-stage heat exchange tube and the second-stage heat exchange tube are arranged at the lower part of the combustion chamber, the first-stage heat exchange tube is positioned above the second-stage heat exchange tube, the first-stage heat exchange tube is communicated with the second-stage heat exchange tube, the fins are sleeved on the first-stage heat exchange tube and the second-stage heat exchange tube, and the first-stage heat exchange tube is provided;

the condensation heat exchange tube is arranged at the bottom of the combustion chamber and communicated with the second-stage heat exchange tube, the condensation heat exchange tube is provided with a cold water inlet, and a condensate water recovery disc is arranged at the bottom of the condensation heat exchange tube.

The first-stage heat exchange tube, the second-stage heat exchange tube, the condensation heat exchange tube, the fins and the condensate water recovery disc are all made of aluminum.

Further, the number of the gas inlet pipes is two.

Further, the combustion chamber includes first baffle, second baffle and third baffle, and first baffle, second baffle and the perpendicular setting of third baffle are in the bottom of mount, and first baffle setting is on the right side of mount, the second baffle setting is in the front side of mount, and the third baffle sets up in the left side of mount, and three baffle forms has rear side opening and bottom open-ended semi-closed cavity.

Furthermore, an axial first guide plate and a radial second guide plate are arranged on the main air pipe.

Furthermore, a reinforcing rib plate is arranged on the gas pipe, one side of the reinforcing rib plate is connected with the main gas pipe, and the other side of the reinforcing rib plate is connected with the gas inlet pipe.

Furthermore, the primary heat exchange tube, the secondary heat exchange tube, the condensation heat exchange tube, the fins and the condensate water recovery disc form an integrated structure by adopting an aluminum casting process.

Compared with the prior art, the beneficial effects of the utility model are that:

the fin type cast aluminum condensation heat exchanger of the utility model is characterized in that the primary heat exchange tube, the secondary heat exchange tube, the condensation heat exchange tube, the fins and the condensate water recovery disc are all made of aluminum, thus being acid-resistant and not easy to corrode;

the utility model relates to a fin formula cast aluminum condensation heat exchanger adopts the formula of falling to burn, utilizes the inertia of air current to make the high temperature flue gas realize tertiary heat transfer, and heat exchange efficiency is high.

Drawings

Fig. 1 is a schematic view of a fin type cast aluminum condensing heat exchanger according to the present invention.

In the figure:

mount 1, fire row 2, the gas advances pipe 3, deep floor 3.1, main air pipe 4, first guide plate 4.1, second guide plate 4.2, comdenstion water recovery dish 5, combustion chamber 6, first baffle 6.1, second baffle 6.2, third baffle 6.3, one-level heat exchange tube 7, hot water outlet 7.1, second grade heat exchange tube 8, condensation heat exchange tube 9, cold water inlet 9.1, fin 10.

Detailed Description

The following description will further describe embodiments of the present invention with reference to the accompanying drawings and examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

Referring to fig. 1, the utility model relates to a fin type cast aluminum condensation heat exchanger, which comprises a fixed frame 1, a fire grate 2, a fuel gas inlet pipe 3, a main gas pipe 4, a water cooling pipe 5 and a combustion chamber 6;

a plurality of fire rows 2 are arranged on the fixed frame 1 side by side, and a gap is reserved between every two adjacent fire rows 2;

the main gas pipe 4 is arranged at the top of the fixing frame 1, two gas inlet pipes 3 are arranged on the main gas pipe 4 respectively, the gas pipe 3 is provided with a reinforcing rib plate 3.1, one side of the reinforcing rib plate 3.1 is connected with the main gas pipe 4, the other side of the reinforcing rib plate 3.1 is connected with the gas inlet pipe 3, the inner side of the main gas pipe 4 is provided with a plurality of gas distribution pipes, and the plurality of gas distribution pipes correspond to inlets of the plurality of fire grates 2 one by one respectively; the main air pipe 4 is provided with an axial first guide plate 4.1 and a radial second guide plate 4.2, and the two guide plates are helpful for air to enter a gap between adjacent fire grates;

the combustion chamber 6 sets up in 1 bottom of mount, combustion chamber 6 includes first baffle 6.1, second baffle 6.2 and third baffle 6.3, first baffle 6.1, second baffle 6.2 and the perpendicular setting of third baffle 6.3 are in 1 bottom of mount, first baffle 6.1 sets up the right side at mount 1, second baffle 6.2 sets up the front side at mount 1, third baffle 6.3 sets up the left side at mount 1, three baffle forms the semi-closed cavity that has back side opening and bottom open-ended.

The primary heat exchange tube 7 and the secondary heat exchange tube 8 are arranged at the lower part of the combustion chamber 6, the primary heat exchange tube 7 is positioned above the secondary heat exchange tube 8, the primary heat exchange tube 7 is communicated with the secondary heat exchange tube 8, the fin 10 is sleeved on the primary heat exchange tube 7 and the secondary heat exchange tube 8, and the primary heat exchange tube 7 is provided with a hot water outlet 7.1;

the condensation heat exchange tube 9 is arranged at the bottom of the combustion chamber 6 in an S shape, the condensation heat exchange tube 9 is communicated with the second-stage heat exchange tube 8, and the condensation heat exchange tube 9 is provided with a cold water inlet 9.1; the bottom of the condensation heat exchange pipe 9 is provided with a condensate water recovery disc 5.

The primary heat exchange tube 7, the secondary heat exchange tube 8, the condensation heat exchange tube 9, the fins 10 and the condensate water recovery disc 5 are all made of aluminum and are formed into an integral structure by adopting an aluminum casting process.

The working principle is as follows:

the utility model relates to a fin formula cast aluminum condensation heat exchanger, gas enter into main trachea 4 through gas intake pipe 3, then enter the mixing chamber in each fire row 2 respectively through the gas-distributing pipe, the air enters from between two adjacent fire rows 2, at the flame mouth department of fire row 2, form the flame of burning upside down, burn in combustion chamber 6, cold water enters from the cold water import 9.1 of condensation heat exchange tube 9, pass through second grade heat exchange tube 8 and first grade heat exchange tube 7 in proper order; due to the inertia of the air flow, the high-temperature flue gas exchanges heat with the fins 10, the temperature of cold water in the primary heat exchange tube 7 and the secondary heat exchange tube 8 is raised, and the cold water is finally discharged from a hot water outlet 7.1 of the primary heat exchange tube 7, and the hot water is used as domestic water; after heat exchange is carried out on the high-temperature flue gas by the fins, the high-temperature flue gas exchanges heat with the condensation heat exchange tube 9, the flue gas is cooled to the original temperature, and the water vapor in the flue gas enters the condensate water recovery disc 5 in a condensate water state.

The utility model relates to a fin type cast aluminum condensation heat exchanger, a primary heat exchange tube 7, a secondary heat exchange tube 8, a condensation heat exchange tube 9, fins 10 and a condensate water recovery disc 5 are all made of aluminum, thus being acid-resistant and not easy to corrode;

In the above embodiments, the present invention has been described only by way of example, but various modifications may be made by those skilled in the art after reading the present patent application without departing from the spirit and scope of the invention.

Claims

1. A fin type cast aluminum condensation heat exchanger is characterized in that: the combustion chamber is arranged at the bottom of the fixing frame; the fire rows are arranged on the fixing frame side by side, and a gap is reserved between every two adjacent fire rows;

the condensation heat exchange tube is arranged at the bottom of the combustion chamber and is communicated with the second-stage heat exchange tube, the condensation heat exchange tube is provided with a cold water inlet, and the bottom of the condensation heat exchange tube is provided with a condensation water recovery disc;

2. A fin cast aluminum condensing heat exchanger according to claim 1 wherein: the gas inlet pipe has two.

3. A fin cast aluminum condensing heat exchanger according to claim 1 wherein: the combustion chamber comprises a first partition plate, a second partition plate and a third partition plate, wherein the first partition plate, the second partition plate and the third partition plate are vertically arranged at the bottom of the fixing frame, the first partition plate is arranged on the right side of the fixing frame, the second partition plate is arranged on the front side of the fixing frame, the third partition plate is arranged on the left side of the fixing frame, and the three partition plates form a semi-closed cavity with a rear opening and a bottom opening.

4. A fin cast aluminum condensing heat exchanger according to claim 1 wherein: the main air pipe is provided with an axial first guide plate and a radial second guide plate.

5. A fin cast aluminum condensing heat exchanger according to claim 1 wherein: be provided with deep floor on the gas pipe, one side and the main gas piping connection of deep floor, the another side and the gas of deep floor advance union coupling.

6. A fin cast aluminum condensing heat exchanger according to claim 1 wherein: the primary heat exchange tube, the secondary heat exchange tube, the condensation heat exchange tube, the fins and the condensate water recovery disc are formed into an integral structure by adopting an aluminum casting process.