CN214469370U

CN214469370U - Comfortable wall-mounted furnace

Info

Publication number: CN214469370U
Application number: CN202023197985.1U
Authority: CN
Inventors: 艾穗江; 黄志飞; 汪为彪
Original assignee: Macro Thermal Energy Technology Co ltd
Current assignee: Macro Thermal Energy Technology Co ltd
Priority date: 2020-12-25
Filing date: 2020-12-25
Publication date: 2021-10-22
Anticipated expiration: 2030-12-25

Abstract

The utility model discloses a comfortable wall-mounted furnace, which is characterized by comprising a combustor and a sectional stop valve connected with the combustor, wherein the combustor is provided with a first fire grate, a second fire grate and a third fire grate which are separately and sectionally arranged, and the first fire grate, the second fire grate and the third fire grate respectively correspond to a first sectional stop valve, a second sectional stop valve and a third sectional stop valve; the corresponding first fire grate and the second fire grate are respectively provided with a first fuel gas inlet and a second fuel gas inlet correspondingly, the third fire grate is provided with a connecting pipeline communicated with the second fire grate correspondingly, and a third section stop valve is arranged on the connecting pipeline; the first fuel gas inlet and the second fuel gas inlet are communicated with the fuel gas inlet of the wall-mounted furnace through a three-way structure. The utility model discloses simple structure, operation convenient to use.

Description

Comfortable wall-mounted furnace

Technical Field

The utility model relates to a hanging stove technical field.

Background

The minimum heat load of the wall-hanging stove for bathing, and the ratio (load ratio) of the maximum load and the minimum load of the wall-hanging stove are important indexes for measuring the comfort of the wall-hanging stove for bathing; the smaller the minimum heat load, the larger the load ratio, and the higher the bathing comfort. The existing wall-mounted boiler generally reduces the minimum heat load and enlarges the load ratio by two-section combustion and three-section combustion, thereby improving the bathing comfort. The control of the sectional combustion is generally realized by that the sectional combustion is realized by corresponding to a plurality of sectional valves, for example, two sectional stop valves are needed for two sections, and three sectional stop valves are needed for three sections; along with the improvement of living standard, the three-section burning can not satisfy some users to the user demand of hot water, realizes the three-section burning through three section valve that ends, and the cost is higher.

Disclosure of Invention

The utility model aims at solving the defects of the prior art, providing a simple structure, reducing the minimum heat load of the wall hanging stove and enlarging the load ratio, thereby improving the comfortable wall hanging stove of the bathing comfort of the wall hanging stove.

The utility model discloses an adopt following technical solution to realize above-mentioned purpose: a comfortable wall-mounted furnace is characterized by comprising a combustor and a sectional stop valve connected with the combustor for controlling the combustor, wherein the combustor is provided with a first fire bank, a second fire bank and a third fire bank which are separately and sectionally arranged, and the first fire bank, the second fire bank and the third fire bank respectively correspond to a first sectional stop valve, a second sectional stop valve and a third sectional stop valve; the corresponding first fire grate and the second fire grate are respectively provided with a first fuel gas inlet and a second fuel gas inlet correspondingly, the third fire grate is provided with a connecting pipeline communicated with the second fire grate correspondingly, and a third section stop valve is arranged on the connecting pipeline; the first fuel gas inlet and the second fuel gas inlet are communicated with the fuel gas inlet of the wall-mounted furnace through a three-way structure.

As a further explanation of the above scheme, the second fire bank is provided with an ignition needle and a flame feedback needle, the ignition needle can ignite the burner, and the feedback needle can detect a feedback flame signal.

Furthermore, the inboard of combustor is provided with the gas-distributing pipe, and the gas-distributing pipe is connected with the nozzle, and every group nozzle and fire arrange the piece one-to-one, adopt the baffle to separate between the nozzle that first fire was arranged to correspond, the nozzle that the second fire was arranged to correspond, the nozzle that the third fire was arranged to correspond.

Furthermore, the connecting pipeline comprises a second air inlet channel corresponding to the second fire grate, a third air inlet channel corresponding to the third fire grate and an inclined hole channel connected between the second air inlet channel and the third air inlet channel.

Furthermore, the connecting end of the inclined hole channel and the air inlet channel III is provided with a mounting position corresponding to the third section stop valve, and the plug of the third section stop valve movably pushes against the end of the third air inlet channel.

The utility model adopts the beneficial effect that above-mentioned technical solution can reach is:

1. the utility model discloses a three segmentation stop valve of hanging stove control, combustor can realize the four segmentation burning of three stop valve control, reduce the minimum heat load of hanging stove, enlarge the load ratio to promote the travelling comfort of hanging stove.

2. The utility model discloses hanging stove can guarantee that the load conversion is smooth-going when the segmentation burning switches, avoids the load sudden change, promotes the travelling comfort.

3. The utility model discloses hanging stove has some fire to arrange all the time in the burning operation to be in the combustion state, is favorable to the segmentation burning to pass the fire at the switching in-process.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic structural view of the present invention in different combustion states;

FIG. 3 is a schematic view of the structure of the gas-distributing pipe;

FIG. 4 is a side view of FIG. 3;

FIG. 5 is a schematic view of the inner structure of the gas-distributing pipe;

FIG. 6 is a schematic view of a sectional stop valve;

FIG. 7 is a schematic view of a sectional stop valve mounting structure;

FIG. 8 is a schematic view showing the flow of gas and the combustion state;

FIG. 9 is a schematic view showing the flow of gas and the combustion state;

FIG. 10 is a schematic view showing the flow of gas and the combustion state;

FIG. 11 is a schematic view showing the flow of gas and the combustion state;

fig. 12 is a combustion heat load diagram of each combustion state.

Description of reference numerals: 1. the device comprises a first sectional stop valve 2, a second sectional stop valve 3, a third sectional stop valve 3-1, a plug 4, a burner 5, a first gas inlet 6, a second gas inlet 7, a connecting pipeline 7-1, a second gas inlet channel 7-2, a third gas inlet channel 7-3, an inclined hole channel 8, a three-way structure 9, an ignition needle 10, a flame feedback needle 11, a gas distributing pipe 12, a nozzle 13 and a partition plate.

Detailed Description

The technical solution is described in detail with reference to specific embodiments below.

As shown in fig. 1-7, the utility model relates to a comfortable hanging stove, it includes combustor and a plurality of segmentation stop valves of connection control combustor 4, the combustor is provided with first fire row N1, second fire row N2, third fire row N3 of separate segmentation, first fire row N1, second fire row N2, third fire row N3 correspond segmentation stop valve 1, segmentation stop valve two 2, segmentation stop valve three 3 respectively; the corresponding first fire grate and the second fire grate are respectively provided with a first fuel gas inlet 5 and a second fuel gas inlet 6 in a corresponding mode, the third fire grate is provided with a connecting pipeline 7 in a corresponding mode and communicated with the second fire grate, and a third section stop valve is arranged on the connecting pipeline 7; the first gas inlet and the second gas inlet are communicated with the gas inlet of the wall-mounted furnace through a three-way structure 8. An ignition needle 9 and a flame feedback needle 10 are arranged on the second fire row, the ignition needle can ignite the burner, and the feedback needle can detect a feedback flame signal.

Further, the inner side of the combustor is provided with a gas distribution pipe 11, the gas distribution pipe is connected with nozzles 12, each group of nozzles corresponds to the fire row pieces one by one, and the nozzles corresponding to the first fire row, the nozzles corresponding to the second fire row and the nozzles corresponding to the third fire row are separated by a partition plate 13. The connecting pipeline 7 comprises a second air inlet channel 7-1 corresponding to the second fire grate, a third air inlet channel 7-2 corresponding to the third fire grate and an inclined hole channel 7-3 connected between the second air inlet channel and the third air inlet channel.

Furthermore, the connecting end of the inclined hole channel and the air inlet channel III is provided with a mounting position corresponding to the third section stop valve, and the plug of the third section stop valve movably pushes against the end of the third air inlet channel. The extension and contraction of the plug 3-1 are controlled through the third section stop valve 3, so that whether the nozzles corresponding to the second fire row N2 and the nozzles corresponding to the third fire row N3 are communicated or not is controlled. When the third section stop valve corresponding to the third fire bank N3 is opened, the nozzles corresponding to the second fire bank N2 and the nozzles corresponding to the third fire bank N3 are communicated together; when the section shutoff valve III is closed, the third fire bank N3 has no gas passing through.

In the combustion operation process of the wall-hanging stove, the fire rows sequentially combusted in the four sections from small to large according to the combustion load are a second fire row N2, a second fire row N2+ a third fire row N3, a second fire row N2+ a first fire row N1, a second fire row N2+ a first fire row N1+ a third fire row N3, as shown in FIG. 2. The second fire bank N2, which is individually segmented, remains lit at all times, facilitating fire transfer during the switching process. In the switching process, the load cannot be increased suddenly and then reduced, and the load is directly adjusted according to the load calculated by the main controller of the wall-hanging furnace, so that the load sudden change is avoided.

As shown in fig. 8-11, during the combustion operation of the wall-hanging stove, the main controller controls the state of the stop valve, the second section stop valve is opened, the third section stop valve and the first section stop valve are closed, and the second fire grate works; opening the second section stop valve and the third section stop valve, closing the first section stop valve, and operating the second fire grate and the third fire grate; opening the second section stop valve and the first section stop valve, closing the third section stop valve, and operating the first fire grate and the second fire grate; and the second section stop valve, the first section stop valve and the third section stop valve are all opened, and the first fire bank, the second fire bank and the third fire bank work.

Taking a typical 24kW wall-mounted boiler as an example, many wall-mounted boilers employ burners comprising 11 fire grate segments, with a total number N of rows set to 11. That is, the maximum combustion load of a single fire row is 24 ÷ 11 ═ 2.2kW, and the minimum combustion load of a single fire row is empirically set to 0.8 kW. Taking into account the basic principle that the loads of the respective staged combustion states need to overlap, N1-7, N2-2, and N3-2 are set here, and the combination can be found.

Specific conditions of each combustion state in the combustion process of 24kW wall-mounted furnace

The main controller controls the state of the electromagnetic valve	Fire grate segment for combustion	Number of fire row pieces for combustion	Minimum load of combustion in this state	Maximum load of combustion in this state
					Valve
2 is open, valve 3, valve 1 are closed	N2	2	1.6	4.4
					Valve 2, valve 3 open, valve 1 closed	N2+N3	2+2＝4	3.2	8.8
Valve 2, valve 1 open, valve 3 closed	N2+N1	2+7＝9	7.2	19.8
					Valve 2, valve 1, valve 3 are all open	N2+N1+N3	2+7+2＝11	8.8	24.2

From the above table and as shown in fig. 12, it is evident that: the combustion heat load of each combustion state obviously has load superposition, the minimum superposition load is 1.2kw, the load discontinuity during combustion can be avoided, and the combustion gear-breaking is avoided; burning 24kw of product in four sections, wherein the load ratio is 24: 1.6-15: 1; the minimum load reaches 1.6 kw; in the combustion process, fire row piece N2 is in the combustion state all the time, in hanging stove burning operation in-process, the quartering section is arranged for second fire row N2 according to the fire that burning power burns from little to big in proper order, second fire row N2+ third fire row N3, second fire row N2+ first fire row N1, second fire row N2+ first fire row N1+ third fire row N3, in the switching process, can not cause the sudden increase of load to reduce again, directly adjust according to the load that hanging stove main control unit calculated.

Compared with the prior art, the utility model, through the wall hanging stove control three segmentation stop valves, combustor, can realize that three stop valves control four segmentation burning, reduce the minimum heat load of wall hanging stove, enlarge the load ratio to promote the travelling comfort of wall hanging stove; the wall-mounted boiler can ensure smooth load conversion during the staged combustion switching, avoid sudden load change and improve the comfort; the hanging stove has some fire row all the time in the burning operation to be in the burning state, is favorable to the segmentation burning to carry out the fire transmission in the switching process.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, many modifications and improvements can be made without departing from the inventive concept, and all of them belong to the protection scope of the present invention.

Claims

1. A comfortable wall-mounted furnace is characterized by comprising a combustor and a sectional stop valve connected with the combustor for controlling the combustor, wherein the combustor is provided with a first fire bank, a second fire bank and a third fire bank which are separately and sectionally arranged, and the first fire bank, the second fire bank and the third fire bank respectively correspond to a first sectional stop valve, a second sectional stop valve and a third sectional stop valve; the corresponding first fire grate and the second fire grate are respectively provided with a first fuel gas inlet and a second fuel gas inlet correspondingly, the third fire grate is provided with a connecting pipeline communicated with the second fire grate correspondingly, and a third section stop valve is arranged on the connecting pipeline; the first fuel gas inlet and the second fuel gas inlet are communicated with the fuel gas inlet of the wall-mounted furnace through a three-way structure.

2. The comfortable wall hanging stove according to claim 1, characterized in that the second fire row is provided with an ignition needle and a flame feedback needle, the ignition needle can ignite the burner, and the feedback needle can detect the feedback flame signal.

3. The comfortable wall-mounted furnace according to claim 1, wherein a gas distribution pipe is arranged on the inner side of the burner, nozzles are connected to the gas distribution pipe, each group of nozzles corresponds to the fire row pieces one by one, and the nozzles corresponding to the first fire row, the nozzles corresponding to the second fire row and the nozzles corresponding to the third fire row are separated by a partition plate.

4. The comfortable wall-hanging stove according to claim 1, wherein the connecting duct comprises a second air inlet channel corresponding to the second fire row, a third air inlet channel corresponding to the third fire row, and an inclined hole channel connected between the second air inlet channel and the third air inlet channel.

5. The comfortable wall-mounted furnace according to claim 4, wherein the connecting end of the inclined hole channel and the third air inlet channel is provided with a mounting position corresponding to the third sectional stop valve, and a plug of the third sectional stop valve is movably pressed against the end of the third air inlet channel.