External condenser device of condensing boiler

Abstract

The utility model discloses an external condenser device of a condensing boiler, which is an external condenser used for exchanging heat with a boiler heat exchange fin component, the external condenser is composed of a left condensing fin, a middle condensing fin component and a right condensing fin, and the left condensing fin and the right condensing fin are respectively and detachably arranged on two sides of the middle condensing fin component. A plurality of first heat exchange cylinders and a plurality of third heat exchange cylinders are fixedly installed on the sides, opposite to the condensation middle piece assembly, of the condensation left piece and the condensation right piece respectively, the condensation middle piece assembly is composed of a plurality of condensation middle pieces, and a plurality of second heat exchange cylinders are fixedly installed on the two sides of each condensation middle piece. The external condenser can be freely detached and replaced, is high in flexibility, can be matched with specifications and models of all condensing boilers with the same size, can be directly and externally connected and connected for use, and is convenient to assemble; the heat exchange efficiency of an original boiler can be improved, the using number of original heat exchange pieces is reduced, and the size of an original boiler body is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of condensing boiler equipment, and more specifically, to a condensing boiler external condenser device. Background Art

[0002] In recent years, energy efficiency technology has been one of the important ways to promote energy conservation and emission reduction in the energy policies of various countries. As a common industrial production and civil equipment on the energy supply side, boilers use the heat energy or other heat energy released by fuel combustion to heat the working water or other fluids to certain parameters, thereby meeting the demand for heating. However, in this energy exchange process, there is always a part of energy loss. How to generate more energy and improve energy efficiency while consuming the same gas is a key research direction in the field of energy supply. The most critical core component of the condensing boiler is the residual heat recovery device, which utilizes the condensing effect of its internal heat exchanger. In recent years, with the continuous development of technology, more and more types of boilers have emerged in the boiler industry, but the key core of all of them is the recovery and utilization of flue gas waste heat. Under the same gas usage, the more sufficient the waste heat recovery, the more market advantage and dominance it has, which depends on the condensing effect of the condensing boiler.

[0003] At present, there are many types of condensing boilers on the market, and the heat exchange efficiency varies. In order to improve the heat exchange efficiency of the boiler itself, many manufacturers use more than a dozen middle-piece heat exchange components, which leads to poor water circulation in the middle of the heat exchange plate and easy fouling of the water channel, which affects the heat exchange efficiency over time. In addition, the heat exchange efficiency is improved by blindly increasing the number of middle pieces, which makes the boiler larger and occupies a larger area, and the installation and subsequent maintenance costs of the boiler increase. Utility Model Content

[0004] The utility model aims to provide an external condenser device for a condensing boiler.

[0005] In order to achieve the above-mentioned purpose, the technical solution adopted by the utility model is as follows: a condensing boiler external condenser device, an external condenser used for heat exchange with a boiler heat exchange plate assembly, the external condenser is composed of a condensing left plate, a condensing middle plate assembly and a condensing right plate, the condensing left plate, the condensing middle plate assembly and the condensing right plate are used to respectively connect to the boiler left plate, the boiler middle plate and the boiler right plate of the boiler heat exchange plate assembly, the condensing left plate and the condensing left plate are respectively detachably installed on both sides of the condensing middle plate assembly, and the condensing left plate and the condensing right plate are respectively fixedly installed with multiple first heat exchange cylinders and third heat exchange cylinders on one side of the condensing left plate and the condensing right plate relative to the position of the condensing middle plate assembly, the condensing middle plate assembly is composed of multiple condensing middle plates, and multiple second heat exchange cylinders are fixedly installed on both sides of the condensing middle plate.

[0006] Preferably, the first, second and third water exchange chambers are respectively provided inside the left condenser plate, the right condenser plate and the middle condenser plate, and the first, second and third water exchange chambers are respectively connected to the water chambers of the left, right and middle boiler plates.

[0007] Preferably, the lower ends of the front sides of the left condensing plate, the right condensing plate and the middle condensing plate are all fixed with protruding ears, and the protruding ears of the left condensing plate, the right condensing plate and the middle condensing plate are fixedly connected to each other by bolts.

[0008] Preferably, the second heat exchange cylinders on both sides of the plurality of condensing middle plates are arranged alternately.

[0009] Preferably, outer sides of the left condensation sheet and the right condensation sheet are both provided with inner recessed portions recessed inwards.

[0010] Preferably, the rear ends of the left condensation sheet, the right condensation sheet and the middle condensation sheet are all provided with ventilation holes running through both sides.

[0011] Preferably, air inlet grilles are provided on both sides of the front end of the left condensation plate, the right condensation plate and the middle condensation plate.

[0012] Preferably, the left condensation plate, the right condensation plate and the middle condensation plate are all made of cast aluminum alloy.

[0013] Compared with the prior art, the advantages of the utility model are:

[0014] The external condenser of this application can be freely replaced, which is flexible and can be matched with all specifications and models of condensing boilers of the same size;

[0015] The heat exchange cylinder and the middle water channel on the external condenser can be directly connected and used externally, which is convenient for assembly;

[0016] By connecting the original boiler to an external condenser, the heat exchange efficiency of the original boiler can be improved, the number of original heat exchange plates used can be reduced, and the volume of the original furnace body can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a schematic diagram of the connection state of the external condenser and the condensing boiler of the utility model;

[0019] Figure 2It is an exploded view of the external condenser of the utility model;

[0020] Figure 3 This is a structural diagram of the left condensing sheet of the utility model;

[0021] Figure 4 It is a structural diagram of the condensing middle piece of the utility model.

[0022] In the figure: 0 boiler heat exchange plate assembly, 1 condensation left plate, 2 condensation middle plate assembly, 3 condensation right plate, 4 boiler left plate, 5 boiler middle plate assembly, 6 boiler right plate, 7 protruding ear, 8 first heat exchange cylinder, 9 first hot water exchange cavity, 10 condensation middle plate, 11 second heat exchange cylinder, 12 inner recess, 13 second hot water exchange cavity, 14 third hot water exchange cavity, 15 third heat exchange cylinder, 16 vent. DETAILED DESCRIPTION

[0023] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present invention.

[0024] See also Figure 1-Figure 4 As shown, the utility model provides an external condenser device for a condensing boiler, which is an external condenser for heat exchange with a boiler heat exchange plate assembly 0. The external condenser is composed of a condensing left plate 1, a condensing middle plate assembly 2 and a condensing right plate 3. The condensing left plate 1, the condensing middle plate assembly 2 and the condensing right plate 3 are used to respectively connect with the boiler left plate 4, the boiler middle plate 5 and the boiler right plate 6 of the boiler heat exchange plate assembly 0, and can be fixed by screws when connected to the boiler heat exchange plate assembly 0. The condensing left plate 1 and the condensing left plate 3 are respectively detachably installed on both sides of the condensing middle plate assembly 2. The condensing left plate 1 and the condensing right plate 3 are relative to the condensing middle plate assembly 0. A plurality of first heat exchange cylinders 8 and a third heat exchange cylinder 15 are fixedly installed on one side of the component 2, which are used for condensing and recovering the waste heat of the flue gas below the left boiler plate 4 and the right boiler plate 6 of the boiler heat exchange plate assembly 0. The condensing middle plate assembly 2 is composed of a plurality of condensing middle plates, and the specific number of the condensing middle plates corresponds to the number of boiler middle plates of the original boiler. A plurality of second heat exchange cylinders 11 are fixedly installed on both sides of the condensing middle plate, which are used for condensing and recovering the waste heat of the flue gas below the boiler middle plate 5 of the boiler heat exchange plate assembly 0. The number of the first heat exchange cylinder 8, the second heat exchange cylinder 11 and the third heat exchange cylinder 15 can be designed according to actual needs.

[0025] In the present embodiment, the first water exchange chamber 9, the second water exchange chamber 13 and the third water exchange chamber 14 are respectively provided inside the condensing left plate 1, the condensing right plate 3 and the condensing middle plate, thereby forming a hollow water channel structure. The first water exchange chamber 9, the second water exchange chamber 13 and the third water exchange chamber 14 are respectively connected to the water chambers of the boiler left plate 4, the boiler right plate 6 and the boiler middle plate 5. When in use, the water channel is filled with water, and the heat on the heat exchange column is absorbed through the flow of water, thereby achieving the effect of heat exchange for the boiler left plate 4, the boiler middle plate 5 and the boiler right plate 6.

[0026] Furthermore, in the present embodiment, the lower ends of the front sides of the left condenser sheet 1, the right condenser sheet 3 and the middle condenser sheet are all fixed with protruding ears 7, and the protruding ears of the left condenser sheet 1, the right condenser sheet 3 and the middle condenser sheet are fixedly connected to each other by bolts. To ensure the stability of the connection, a limiting plug-in structure is provided between the left condenser sheet 1, the right condenser sheet 3 and the middle condenser sheet to avoid misalignment during splicing.

[0027] Furthermore, in order to avoid collision of the second heat exchange cylinders 11 when multiple condensing middle plates are spliced ​​together, in this embodiment, the second heat exchange cylinders 11 on both sides of the multiple condensing middle plates are staggered.

[0028] Furthermore, in order to reduce the manufacturing cost and self-weight of the left condensing plate 1 and the right condensing plate 3, in the present embodiment, the outer sides of the left condensing plate 1 and the right condensing plate 3 are provided with an inner recess 12 which is recessed inwards.

[0029] In this embodiment, the rear ends of the left condensing plate 1, the right condensing plate 3 and the middle condensing plate are all provided with ventilation holes 16 running through both sides for the passage of natural wind, thereby further improving the heat exchange efficiency.

[0030] In this embodiment, air inlet grilles are provided on both sides of the front end of the left condensing plate 1, the right condensing plate 3 and the middle condensing plate to ensure that the external natural wind or the wind generated by the fan can be blown into the heat exchange columns, thereby improving the heat dissipation efficiency.

[0031] In this embodiment, the left condensation plate 1, the right condensation plate 3 and the middle condensation plate are all made of cast aluminum alloy.

[0032] Although the embodiments of the present invention are described in conjunction with the accompanying drawings, the patent owner may make various variations or modifications within the scope of the appended claims. As long as they do not exceed the protection scope described in the claims of the present invention, they should be within the protection scope of the present invention.

Claims

1. A condensing boiler external condenser device, an external condenser used for heat exchange with a boiler heat exchanger assembly, characterized in that: The external condenser is composed of a left condensing plate, a middle condensing plate assembly and a right condensing plate. The left condensing plate, the middle condensing plate assembly and the right condensing plate are used to respectively connect to the boiler left plate, the boiler middle plate and the boiler right plate of the boiler heat exchange plate assembly. The left condensing plate and the left condensing plate are respectively detachably installed on both sides of the middle condensing plate assembly. A plurality of first heat exchange cylinders and a third heat exchange cylinder are respectively fixedly installed on one side of the left condensing plate and the right condensing plate relative to the position of the middle condensing plate assembly. The middle condensing plate assembly is composed of a plurality of middle condensing plates, and a plurality of second heat exchange cylinders are fixedly installed on both sides of the middle condensing plate.

2. A condensing boiler external condenser device according to claim 1, characterized in that: The first, second and third water exchange chambers are respectively provided inside the condensing left plate, the condensing right plate and the condensing middle plate. The first, second and third water exchange chambers are respectively connected to the water chambers of the boiler left plate, the boiler right plate and the boiler middle plate.

3. A condensing boiler external condenser device according to claim 1, characterized in that: The lower ends of the front sides of the left condensation plate, the right condensation plate and the middle condensation plate are all fixed with protruding ears, and the protruding ears of the left condensation plate, the right condensation plate and the middle condensation plate are fixedly connected to each other by bolts.

4. The condensing boiler external condenser device according to claim 1, characterized in that: The second heat exchange cylinders on both sides of the plurality of condensing middle plates are arranged alternately.

5. The condensing boiler external condenser device according to claim 1, characterized in that: The outer sides of the left condensation sheet and the right condensation sheet are both provided with inner concave parts which are concave inwards.

6. The condensing boiler external condenser device according to claim 1, characterized in that: The rear ends of the left condensation sheet, the right condensation sheet and the middle condensation sheet are all provided with ventilation holes penetrating both sides.

7. The condensing boiler external condenser device according to claim 1, characterized in that: Both sides of the front ends of the left condensation plate, the right condensation plate and the middle condensation plate are provided with air inlet grilles.

8. The condensing boiler external condenser device according to claim 1, characterized in that: The left condensation plate, the right condensation plate and the middle condensation plate are all made of cast aluminum alloy.

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