CN211400335U

CN211400335U - Liquid level protection device and condensing wall-mounted furnace

Info

Publication number: CN211400335U
Application number: CN201922195924.2U
Authority: CN
Inventors: 李金能; 林康桂; 郭姿宇
Original assignee: Gree Electric Appliances Inc of Zhuhai
Current assignee: Gree Electric Appliances Inc of Zhuhai
Priority date: 2019-12-09
Filing date: 2019-12-09
Publication date: 2020-09-01
Anticipated expiration: 2029-12-09

Abstract

The utility model provides a liquid level protection device and condensing hanging stove. The liquid level protection device comprises a protection circuit and a liquid flow path, wherein the protection circuit comprises a first connection point and a second connection point, and when the first connection point and the second connection point are conducted, the protection circuit works; the liquid flow path comprises a second flow path and a first flow path, the second flow path comprises a vertical section, and two ends of the first flow path are connected to the vertical section; the first connection point is provided on an inner wall of the first flow path, and the second connection point is provided on an inner wall of the second flow path. The utility model discloses liquid level protection device can remain liquid level protect function, and can not appear mistake protection phenomenon when the condensate drips, improves product security and practicality.

Description

Liquid level protection device and condensing wall-mounted furnace

Technical Field

The utility model belongs to the technical field of protective apparatus, concretely relates to liquid level protection device and condensing hanging stove.

Background

In the prior art, if the condensate does not flow out of the wall-mounted furnace in the condensing wall-mounted furnace, the condensate flows back to the combustion chamber to cause danger or faults, and therefore the discharge of the condensate needs to be monitored. The monitoring mode that adopts at present places two liquid level detection needles of height on the condensate flow path, and when the condensate flow path was blockked up its interior liquid level rose and reached a take the altitude for two detect the needle bridging, lead to the circuit balance of connecting to change, can reach the purpose of protecting the hanging stove like this.

However, in the actual use process, in the condensate condensation and dripping process, the phenomenon of circuit bridging is easy to occur in advance, so that the circuit is protected by mistake, and therefore, a large amount of feedback problems of after-sale maintenance can occur in the actual use process.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model is to provide a liquid level protection device and condensing hanging stove can avoid the condensate not reach the height and just circuit bridging phenomenon appears, avoids appearing the mistake protection circumstances, reduces after-sales maintenance.

In order to solve the above problem, the present invention provides a liquid level protection device, which includes a protection circuit and a liquid flow path, wherein the protection circuit includes a first connection point and a second connection point, and when the first connection point and the second connection point are conducted, the protection circuit works; the liquid flow path includes a second flow path and a first flow path, at least one end of the first flow path is communicated with the second flow path; the first connection point is provided on an inner wall of the first flow path, and the second connection point is provided on an inner wall of the second flow path.

Preferably, the second flow path comprises a bent section, and the second connection point is arranged on the inner wall of the bent section.

Preferably, the second connection point is lower than an outlet position of the second flow path.

Preferably, the outlet is located higher than the bottom end of the bending section.

Preferably, the first flow path includes an upward-bent upward section, and the first connection point is provided on an inner wall of the upward section.

Preferably, the first flow path comprises an inverted U-shaped section, and the first connection point is provided on an inner wall of the inverted U-shaped section.

Preferably, the first connecting point is arranged at the highest position of the inner wall of the inverted U-shaped section.

Preferably, both ends of the first flow path communicate with the second flow path, and the first connection point is located lower than a high end of the first flow path.

According to another aspect of the utility model, a condensing hanging stove is provided, contains as above liquid level protection device.

The utility model provides a pair of liquid level protection device has traditional protect function, utilizes liquid to accumulate in the liquid flow path, when reaching the position of the first tie point of intercommunication and second tie point for protection circuit work, control liquid produces, thereby prevents that liquid from excessively accumulating, causes harm to other equipment. Meanwhile, the error protection phenomenon can be avoided, the first connecting point and the second connecting point are respectively arranged on the first flow path and the second flow path and are located at two relatively far separated positions, and the liquid can not be communicated with the two connecting points when dripping.

Drawings

FIG. 1 is a schematic diagram of a liquid level guard according to an embodiment of the present invention;

the reference numerals are represented as:

1. a second flow path; 11. bending the section; 12. an outlet; 2. a protection circuit; 21. a first connection point; 22. a second connection point; 3. a first flow path; 31. an inverted U-shaped section; 4. a condenser.

Detailed Description

Referring to fig. 1 in combination, according to an embodiment of the present invention, a liquid level protection device includes a protection circuit 2 and a liquid flow path, where the protection circuit 2 includes a first connection point 21 and a second connection point 22, and when the first connection point 21 and the second connection point 22 are conducted, the protection circuit 2 operates; the liquid flow path comprises a second flow path 1 and a first flow path 3, and at least one end of the first flow path 3 is communicated with the second flow path 1; the first connection point 21 is provided on the inner wall of the first flow path 3, and the second connection point 22 is provided on the inner wall of the second flow path 1.

This liquid level protection device has traditional protect function, utilizes liquid to accumulate in the liquid flow path, when reaching the position of intercommunication first tie point 21 and second tie point 22 for protection circuit 2 works, and control liquid produces, thereby prevents that liquid from gathering excessively, causes harm to other equipment.

Meanwhile, the phenomenon of error protection can be avoided, the first connecting point 21 and the second connecting point 22 are respectively arranged on the first flow path 3 and the second flow path 1 and are positioned at two relatively far separated positions, and the situation that the two connecting points are communicated when liquid drops can not occur.

The second flow path 1 further comprises a bending section 11, and the second connection point 22 is arranged on the inner wall of the bending section 11. The bending section 11 can prevent splashing caused by liquid falling, reduce the unnecessary chance of communicating two connecting points and reduce noise.

The second connection point 22 is located lower than the outlet 12 of the second flow path 1, so as to facilitate detecting whether liquid is present in the second flow path 1, and to facilitate confirming whether the condenser 4 generating liquid such as condensate is working normally.

The outlet 12 of the second flow path 1 is higher than the bottom end of the bending section 11, and because the outlet 12 is higher, a corresponding deposition process exists before the liquid is discharged, the particles in the liquid can be settled at the bottom end of the bending section 11, and the particles contained in the liquid can be prevented from blocking a pipeline communicated with the outlet 12.

One end of the first channel 3 can communicate with the second channel 1, and when liquid is accumulated in the second channel 1 and can be discharged from the first channel 3, the two connection points are brought into conduction, and the protection circuit 2 is activated. Wherein the first connecting point 21 is located lower than the inlet of the second flow path 1.

In a preferred embodiment, the first flow path 3 includes an upward bent upper section, and the first connection point 21 is provided on an inner wall of the upper section. Alternatively, the first flow path 3 includes an inverted U-shaped section 31, and the first connection point 21 is provided on an inner wall of the inverted U-shaped section 31. Most preferably, the first connecting point 21 is provided at the highest position of the inner wall of the inverted U-shaped section 31.

In application, the two ends of the first flow path 3 are communicated with the second flow path 1 without adding more liquid discharge ports.

In order to avoid the dripping liquid from splashing into the first flow path 3, when the first flow path 3 is provided with the inverted U-shaped section 31 structure, the first connecting point 21 is lower than the high end of the first flow path 3, so that the problem that the two connecting points are bridged in advance when the whole flow path is not blocked because the liquid is remained on the first flow path 3 can be prevented.

According to the utility model discloses an embodiment, a condensing hanging stove contains as above liquid level protection device. An inlet of a second flow path 1 of the liquid level protection device is communicated with a liquid outlet on the surface of a condenser 4 of the condensing wall-mounted furnace, and corresponding condensate is led out.

During the normal operation of the condensing wall-hanging furnace, condensate is generated through the condenser 4, flows downwards from the second flow path 1 and is then discharged through the outlet 12. The liquid level protection device is mainly when export 12 is blockked up, and the condensate is discharged not smoothly, leads to in the second flow path 1 liquid level to continuously rise, and in order to avoid appearing the condensate accumulation too much, flows back to the combustion chamber through condenser 4 and produces dangerous trouble, when rising to the height with two tie points all submergence, because the linker principle, two tie points form the bridging through the condensate to with signal transmission to protection circuit 2, form the protection, if stop hanging stove operation.

The first connecting point 21 is arranged on the side wall of the first flow path 3, so that the condition that two connecting points are bridged due to condensate dripping can be avoided; in particular, the first connection point 21 is provided on the inverted U-shaped section 31, which prevents the problem of bridging the two connection points in advance without clogging due to condensate remaining on the pipe during normal operation.

The liquid level protection device can also be applied to a condensing gas water heater, provides liquid level protection for the condensing gas water heater, and avoids the occurrence of error protection.

The liquid level protection device can solve the problem that when the existing product is actually used, the condensate water is condensed and flows down along the condensation pipeline, so that the pipeline is bridged in advance, and the error protection is caused; this liquid level protection device makes and remains the function of liquid level protection under the condition that the mistake protection can not appear to improve product security and practicality.

The utility model discloses optimize the liquid level detection structure, increase the type of falling U structure, through the linker principle, make its condensate can not appear bridging in advance at the in-process of following the heat exchanger backward flow.

It is readily understood by a person skilled in the art that the advantageous ways described above can be freely combined, superimposed without conflict.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention. The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A liquid level protection device comprises a protection circuit (2) and a liquid flow path, wherein the protection circuit (2) comprises a first connection point (21) and a second connection point (22), and when the first connection point (21) and the second connection point (22) are conducted, the protection circuit (2) works; characterized in that the liquid flow path comprises a second flow path (1) and a first flow path (3), at least one end of the first flow path (3) is communicated with the second flow path (1); the first connection point (21) is provided on an inner wall of the first flow path (3), and the second connection point (22) is provided on an inner wall of the second flow path (1).

2. The liquid level protection device according to claim 1, wherein the second flow path (1) comprises a bend (11), the second connection point (22) being provided on an inner wall of the bend (11).

3. Level protection device according to claim 2, characterized in that the second connection point (22) is below the outlet (12) of the second flow path (1).

4. A liquid level protection device according to claim 3, characterized in that the outlet (12) is located higher than the bottom end of the bending section (11).

5. The liquid level protection device according to claim 1, wherein the first flow path (3) comprises an upwardly bent ascending section, the first connection point (21) being provided on an inner wall of the ascending section.

6. The liquid level protection device according to claim 1, wherein the first flow path (3) comprises an inverted U-shaped section (31), the first connection point (21) being provided on an inner wall of the inverted U-shaped section (31).

7. The liquid level protection device according to claim 6, wherein the first connection point (21) is provided at the highest position of the inner wall of the inverted U-shaped section (31).

8. The liquid level protection device according to claim 1, wherein both ends of the first flow path (3) communicate with the second flow path (1), and the first connection point (21) is located lower than the high end of the first flow path (3).

9. A condensing wall hanging stove comprising a liquid level protection device as claimed in any one of claims 1 to 8.