CN206019022U - Segmented combustion device with double fan for wall-hung boiler - Google Patents

Abstract

The utility model discloses a sectional combustion device with double fans for a wall-mounted furnace, which comprises a combustion chamber, a sectional combustor, a sectional proportional valve, a heat exchanger and two fans; the sectional burner is arranged at the bottom of the combustion chamber, the sectional burner is provided with a left air inlet and a right air inlet, the sectional proportional valve is provided with two air outlets which are respectively communicated with the left air inlet and the right air inlet, the heat exchanger is embedded in the combustion chamber, and the heat exchanger is provided with a cold water inlet and a hot water outlet; the two fans are arranged on the side surface of the top of the combustion chamber side by side. The sectional type control combustion is realized by adopting the combustion chamber, the sectional burner and the sectional proportional valve in a matching way, and the sectional function can be started according to the requirement, so that the outlet water temperature meets the requirement of a user, the scalding phenomenon is avoided, and the convenience is brought to the use; and meanwhile, two fans are adopted and matched with the sections, so that the air inlet volume is reduced when the small fire is in the sectional state, the heat loss of smoke discharge is reduced, and the heat efficiency is greatly improved.

Description

Segmented combustion device with double fan for wall-hung boiler

technical field

The utility model relates to the technology in the field of wall-hanging furnaces, in particular to a segmented combustion device with double blowers for the wall-hanging furnaces.

Background technique

Wall-hung furnace is actually the abbreviation of gas wall-hung furnace. The term "wall-mounted furnace" is a foreign term, and its full name is: "gas wall-mounted heating furnace". The standard name in our country is: "gas wall-mounted rapid heating water heater", but it is not a gas water heater in the traditional sense, and it is essentially different from a water heater. It has various safety protection measures such as anti-freezing protection, anti-dry protection, accidental flameout protection, over-temperature protection, and water pump anti-blocking protection. An external indoor thermostat can be connected to achieve personalized temperature adjustment and energy saving. According to statistics, the use of indoor temperature controllers can save 20-28% of gas costs.

At present, ordinary 36/40KW wall-hung boilers do not use segmented burners and segmented control, and there is only one air inlet into the burner. The burner combustion during work is all combustion of 18 rows. The maximum input power of single-row combustion is 2.0-2.2KW, the minimum input power is 0.6-0.66KW, the power adjustment range of ordinary 36/40KW wall-hung boilers is 10.8-36KW, and the minimum input power of the whole machine is 10.8KW. When the cold water temperature is low in winter, the cold water temperature can reach a minimum of 1-3 degrees. This power can meet the heating and bathroom hot water requirements; The highest water inlet temperature can reach 30-35 degrees. When the water inlet temperature reaches more than 30 degrees, when the minimum input power of the whole machine is 10.8KW, the minimum water outlet temperature of the bathroom will exceed 45 degrees. When the water outlet valve of the user's bathroom is not equipped with a water mixing valve, hot water exceeding 45 degrees or even a higher outlet temperature may cause scalding for the user, thereby causing inconvenience to the user.

Contents of the invention

In view of this, the utility model aims at the deficiencies of the existing technology, and its main purpose is to provide a segmented combustion device with double fans for a wall-hung boiler, which can effectively solve the problem of inconvenient use of the existing wall-hung boiler.

In order to achieve the above object, the utility model adopts the following technical solutions:

A segmented combustion device with double fans for a wall-hung boiler, including a combustion chamber, a segmented burner, a segmented proportional valve, a heat exchanger, and two fans; the segmented burner is arranged at the bottom of the combustion chamber, and the segmented The burner has a left air inlet and a right air inlet, the segmented proportional valve has two air outlets, and the two air outlets are respectively connected to the left air inlet and the right air inlet, the heat exchanger is embedded in the combustion chamber, and the heat exchanger has A cold water inlet and a hot water outlet; the two fans are arranged side by side on the top side of the combustion chamber, and the air inlets of the two fans are connected to the combustion chamber.

Preferably, the cold water inlet is connected with a water inlet pump, and the hot water outlet is connected with a hot water pump.

Preferably, the outer surface of the combustion chamber is covered with a heat insulation board.

Preferably, there are 12 first combustion fins and 13 second combustion fins in the sectional burner, the 12 first combustion fins and 13 second combustion fins are alternately arranged side by side, the left The air inlet communicates with each first combustion fin, and the right air inlet communicates with each second combustion fin.

Compared with the prior art, the utility model has obvious advantages and beneficial effects. Specifically, it can be known from the above technical solutions:

By cooperating with the combustion chamber, segmented burner and segmented proportional valve, the segmented control combustion is realized, and the segmented function can be turned on according to the needs, so that the outlet water temperature can meet the needs of the user and prevent scalding, thus bringing convenience to use ;At the same time, two fans are used to match the section to ensure that the air intake is also reduced when the small fire is in the section state, thereby reducing the heat loss of exhaust smoke and greatly improving the thermal efficiency.

In order to illustrate the structural features and functions of the utility model more clearly, the utility model will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the three-dimensional schematic view of the preferred embodiment of the utility model;

Fig. 2 is a schematic perspective view of another angle of the preferred embodiment of the utility model.

Explanation of the accompanying drawings:

10. Combustion chamber 11. Heat shield

20. Sectional burner 21. Left air inlet

22. Right air inlet 30. Sectional proportional valve

31. Air outlet 40. Heat exchanger

41. Cold water inlet 42. Hot water outlet

50. Fan 61. Inlet pump

62. Hot water pump

detailed description

Please refer to Fig. 1 and shown in Fig. 2, it has shown the specific structure of the preferred embodiment of the present utility model, comprises combustion chamber 10, subsection burner 20, subsection proportional valve 30, heat exchanger 40 and two Fan 50.

The sectional burner 20 is arranged at the bottom of the combustion chamber 10, the sectional burner 20 has a left air inlet 21 and a right air inlet 22, and the sectional proportional valve 30 has two air outlets 31, and the two air outlets 31 communicate with each other respectively. Left air inlet 21 and right air inlet 22. In this embodiment, the outer surface of the combustion chamber 10 is covered with a heat shield 11 . There are 12 first combustion fins (not shown in the figure) and 13 second combustion fins (not shown in the figure) in the section burner 20, the 12 first combustion fins and 13 second combustion fins The combustion fins are alternately arranged side by side, the left air inlet 21 communicates with each first combustion fin, and the right air inlet 22 communicates with each second combustion fin.

The heat exchanger 40 is embedded in the combustion chamber 10 . The heat exchanger 40 has a cold water inlet 41 and a hot water outlet 42 ;

The two fans 50 are arranged side by side on the top side of the combustion chamber 10 , and the air inlets of the two fans 50 are connected to the combustion chamber 10 .

When in use, the utility model is installed in the wall-hung boiler. After the wall-hung boiler is started, the section controller enters the system for detection. The temperature difference is used to determine whether to start the segment function. When the temperature difference between the outlet water temperature and the set temperature is large, the segment controller will open all the two gas inlets of the segment burner 20, and the segment proportional valve 30 will adjust to the maximum, the section burners 20 all work at the maximum power, and the two fans 50 are turned on at the same time; The segmented proportional valve 30 enters the proportional adjustment state, and enters the minimum power state where the segmented burner 20 is fully working to continue working. An air inlet of the segmented burner 20 makes the segmented burner 20 enter the segmented combustion state, and only one fan 50 is turned on; when entering the segmented state, the power input of the whole machine is reduced to half of the original full working state , Segmented control and proportional adjustment according to the temperature, the minimum adjustment input can be adjusted to 5.4KW state to meet the needs of the lowest temperature rise.

The key points of the design of this utility model are: through the combination of the combustion chamber, the segmented burner and the segmented proportional valve, the segmented control combustion is realized, and the segmented function can be turned on according to the needs, so that the temperature of the outlet water meets the needs of the user and prevents burns phenomenon, which brings convenience to use; at the same time, two fans are used to match the section to ensure that the air intake is also reduced when the small fire is in the section state, thereby reducing the heat loss of exhaust smoke and greatly improving thermal efficiency. .

The technical principles of the present utility model have been described above in conjunction with specific embodiments. These descriptions are only for explaining the principle of the utility model, and cannot be construed as limiting the protection scope of the utility model in any way. Based on the explanations herein, those skilled in the art can think of other specific implementations of the present utility model without creative work, and these forms will all fall within the protection scope of the present utility model.

Claims (4)

1. the band two fans sectional combustion device of a kind of wall-hung boiler, it is characterised in that：Including combuster, staged burners, Segmentation scales valve, heat exchanger and two blower fans；The staged burners are arranged at the bottom of combustor, and staged burners are entered with a left side There are two gas outlets, two gas outlets to be respectively communicated with left air inlet and right air inlet for QI KOU and right air inlet, the segmentation scales valve, should The embedded burning of heat exchanger is indoor, and heat exchanger has cold water inlet and hot water outlet；Two blower fan is arranged side by side the top in combustor Portion side, the air inlet of two blower fans connect burning interior.

2. the band two fans sectional combustion device of wall-hung boiler as claimed in claim 1, it is characterised in that：The cold water inlet Intake pump is connected with, hot water outlet is connected with heat-exchanger pump.

3. the band two fans sectional combustion device of wall-hung boiler as claimed in claim 1, it is characterised in that：The combustor Outer surface is coated with thermal insulation board.

4. the band two fans sectional combustion device of wall-hung boiler as claimed in claim 1, it is characterised in that：The sectional combustion There are in device 12 first burning fins and 13 second burning fins, this 12 first burning fins and 13 second burning fins Piece is arranged alternately side by side, and per one first burning fin, the right air inlet connection is per one second burning fin for the left air inlet connection.