CN212006238U

CN212006238U - Condensing gas positive displacement water heater

Info

Publication number: CN212006238U
Application number: CN202020613959.3U
Authority: CN
Inventors: 赵华; 梅延臣; 李志伟; 宁尚兵; 刘文涛
Original assignee: Shandong Aikeduo Heat Energy Science And Technology Co ltd
Current assignee: Shandong Aikeduo Heat Energy Science And Technology Co ltd
Priority date: 2020-04-22
Filing date: 2020-04-22
Publication date: 2020-11-24
Anticipated expiration: 2030-04-22

Abstract

The utility model discloses a condensing gas positive displacement water heater, including hollow shell, install the heat exchanger inner bag that the slope set up on the shell, install the combustor in the heat exchanger inner bag, the combustor outside sets up heat transfer unit. The utility model provides high heat exchange efficiency, and simple structure, convenience safe in utilization have solved prior art and have that temperature layering phenomenon is serious, and the effective volume of water heater reduces, and the comdenstion water downward flow that forms among the flue gas heat transfer process corrodes the combustor, and inconvenient problem is dismantled in the combustor maintenance.

Description

Condensing gas positive displacement water heater

Technical Field

The utility model relates to a water heater, concretely relates to condensing gas positive displacement water heater belongs to water heater technical field.

Background

Along with the improvement of living standard of people and the increase of hot water demand in daily life, the gas water heater is widely used, and particularly, the gas positive displacement water heater has large water flow, stable water temperature and high bathing comfort. The traditional gas positive displacement water heater is a container, a tube array is arranged in the container, two ends of the tube array extend out of the container, the periphery of the tube array is welded with a tube plate, and the outer ring of the tube array and the shell of the container of the water heater form a closed space which is filled with water. The flue gases produced by the combustion flow through the interior of the tubes, thereby heating the water inside the space. The burner is divided into two modes according to the position of the burner: firstly, the combustor burns downwards at the container top, and the flue gas flows downwards through the vertical tubulation of arranging, and flame concentrates on the upper portion of water heater, because at container upper portion heating, the upper portion water temperature is high in the container, and lower part temperature is low, and hot water can not form natural circulation, and there is the problem that temperature stratification phenomenon is serious, and the effective volume of water heater reduces in the combustor of this mode. Secondly, the burner burns upwards at the bottom of the container, the flue gas flows upwards through the vertically arranged tubes, and the burner of the mode has the problems that condensed water formed in the flue gas heat exchange process flows downwards to corrode the burner, and the burner is inconvenient to maintain and disassemble.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome prior art's the aforesaid not enough, provide a convenient condensing gas positive displacement water heater is dismantled in heat exchange efficiency height, maintenance.

In order to solve the above problem, the utility model adopts the following technical scheme: a condensing gas positive displacement water heater comprises a hollow shell, a heat exchanger liner which is obliquely arranged is installed on the shell, a combustor is installed in the heat exchanger liner, and a heat exchange unit is arranged outside the combustor.

The following is the utility model discloses to the further optimization of above-mentioned scheme: the heat exchange unit comprises an inner liner tube, a cavity is arranged in the inner liner tube, one end of the inner liner tube is closed, and the other end of the inner liner tube is provided with a through hole for accommodating the combustor.

Further optimization: an outer interlayer water jacket of an annular structure is arranged on the inner liner pipe at a certain distance, and a cavity is arranged in the outer interlayer water jacket.

Further optimization: the inner bile duct is communicated with the outer interlayer water jacket through a smoke channel.

Further optimization: and a plurality of spiral finned tubes are arranged in an annular array in the outer interlayer water jacket.

Further optimization: and two ends of the spiral finned tube respectively penetrate through the outer part of the outer interlayer water jacket.

Further optimization: and the inner liner pipe is provided with a flange.

Further optimization: the outer interlayer water jacket is connected with the flange through a plurality of supporting pieces, and the supporting pieces are arranged in an annular array at intervals.

Further optimization: the flange is provided with a fan-shaped smoke outlet, the smoke outlet is connected with a smoke exhaust pipe, and the smoke exhaust pipe is provided with a condensed water outlet.

When the spiral finned tube is used, flame sprayed out of the burner is in the liner tube, generated hot smoke enters the outer interlayer water jacket through the smoke channel, is discharged from the smoke outlet and the smoke exhaust tube after being absorbed by media in the spiral finned tube, and meanwhile, the spiral finned tube is obliquely arranged due to the rise of the temperature of the media in the spiral finned tube, so the media with higher temperature can flow out of one end of the spiral finned tube, and the media with lower temperature continuously absorb heat from the other end of the spiral finned tube through the gap between the two adjacent supporting pieces.

The utility model discloses a set up the shell, realized holding of heat transfer medium, through setting up the slope of spiral finned tube, realized that the automatic cycle of medium flows, through setting up the combustor, interior bile duct and outer intermediate layer water jacket, realized the heat absorption of high temperature gas's flow and medium, through setting up the certain distance in interval between outer intermediate layer water jacket and inner bag pipe and two adjacent support pieces, the flow of the medium of being convenient for to it is intraductal to go into the spiral finned, the utility model provides a high heat exchange efficiency, and simple structure, convenience safe in utilization have solved prior art and have the temperature stratification phenomenon serious, and the effective volume of water heater reduces, and the comdenstion water downward flow who forms among the flue gas heat transfer process corrodes the combustor, and the inconvenient problem is dismantled in the combustor maintenance.

The present invention will be further explained with reference to the drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1;

FIG. 3 is a schematic structural view of an inner container of a heat exchanger according to an embodiment of the present invention;

FIG. 4 is a schematic structural view of an inner container of a heat exchanger according to an embodiment of the present invention;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 4;

fig. 6 is a schematic sectional view of the inner container of the heat exchanger according to the embodiment of the present invention.

In the figure: 1-a water heater heat-insulating layer; 2-a housing; 3-pressure gauge interface; 4-water outlet joint; 5-temperature probe; 6-a burner; 7-a spiral finned tube; 8-inner bile duct; 9-a fan; 10-a gas valve; 11-a smoke exhaust pipe; 12-water inlet joint; 13-a leg; 14-a safety valve; 15-a condensate outlet; 16-a heat exchanger liner; 17-outer interlayer water jacket; 18-a flange; 19-a smoke outlet; 20-flue gas channel.

Detailed Description

In the embodiment, as shown in fig. 1 to 6, a condensing gas positive displacement water heater comprises a hollow shell 2, a heat exchanger liner 16 which is obliquely arranged is installed on the shell 2, a burner 6 is installed in the heat exchanger liner 16, and a heat exchange unit is arranged outside the burner 6.

The heat exchange unit comprises an inner container pipe 8 which is coaxially and fixedly arranged in the inner container 16 of the heat exchanger and close to the middle of the inner container pipe, a cavity is arranged in the inner container pipe 8, one end of the inner container pipe 8 is sealed, the other end of the inner container pipe is provided with a through hole for accommodating the combustor 6, and the through hole is hermetically connected with the outer wall of the combustor 6.

An outer interlayer water jacket 17 with an annular structure is coaxially arranged outside the inner liner tube 8 at a certain distance, a cavity is arranged in the outer interlayer water jacket 17, and the cavity is closed.

The upper end surface of the inner liner tube 8 is communicated with the outer interlayer water jacket 17 through a flue gas channel 20, so that high-temperature flue gas generated by the combustor 6 after combustion in the inner liner tube 8 conveniently enters the outer interlayer water jacket 17 through the flue gas channel 20.

The inner ring of the outer interlayer water jacket 17 is provided with a plurality of spiral finned tubes 7, two ends of each spiral finned tube 7 penetrate through the outer part of the outer interlayer water jacket 17 respectively, and the outer pipe walls of the spiral finned tubes 7 are connected with the outer interlayer water jacket 17 in a sealing mode.

And through holes communicated with the smoke channel 20 are respectively formed in the inner liner tube 8 and the outer interlayer water jacket 17.

A flange 18 is coaxially and fixedly installed at one end of the inner liner tube 8, a hole for accommodating a heat exchanger liner 16 is formed in the position, close to the lower end, of one side of the shell 2, and the heat exchanger liner 16 is hermetically connected with the shell 2 through the flange 18 and bolts.

The outer interlayer water jacket 17 is fixedly connected with one side of the flange 18 through a plurality of supporting pieces which are arranged in an annular array at intervals.

A fan-shaped smoke outlet 19 is formed in the position, close to the lower end, of one side of the flange 18, the smoke outlet 19 is communicated with one side of the outer interlayer water jacket 17, a smoke exhaust pipe 11 is connected to one side, far away from the outer interlayer water jacket 17, of the smoke outlet 19, and a condensed water outlet 15 is formed in the bottom of the smoke exhaust pipe 11.

The one end of combustor 6 is connected with fan 9 and gas valve 10, and the outside cladding of shell 2 has water heater heat preservation 1, and the bottom of shell 2 is provided with water supply connector 12, and the upper end of shell 2 is provided with manometer interface 3 and the water connectors 4 that are used for installing the manometer, and temperature probe 5 is installed near the position at middle part in one side of shell 2, and safety valve 14 is installed near the position of bottom in one side of shell 2, and the bottom of shell 2 is provided with landing leg 13.

When the device is used, flame sprayed by the burner 6 is in the inner liner pipe 8, generated hot smoke enters the outer interlayer water jacket 17 through the smoke channel 20, is exhausted from the smoke outlet 19 and the smoke exhaust pipe 11 after absorbing heat of a medium in the spiral finned tube 7, and meanwhile, as the temperature of the medium in the spiral finned tube 7 rises and the spiral finned tube 7 is arranged in an inclined manner, the medium with higher temperature flows out from one end of the spiral finned tube 7, and the medium with lower temperature enters the spiral finned tube 7 from the other end of the spiral finned tube 7 through a gap between two adjacent supporting pieces to continuously absorb heat.

Having shown and described the basic principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof, and it is therefore intended that the embodiments be considered as exemplary and not limiting in any way, since the scope of the invention is defined by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein and are therefore not to be embraced therein by any reference numerals in the claims.

Claims

1. The utility model provides a condensing gas positive displacement water heater which characterized in that: the heat exchanger comprises a hollow shell (2), a heat exchanger inner container (16) which is obliquely arranged is arranged on the shell (2), a combustor (6) is arranged in the heat exchanger inner container (16), and a heat exchange unit is arranged outside the combustor (6).

2. A condensing gas positive displacement water heater as defined in claim 1, wherein: the heat exchange unit comprises an inner liner pipe (8), a cavity is arranged in the inner liner pipe (8), one end of the inner liner pipe (8) is closed, and a through hole for accommodating the combustor (6) is formed in the other end of the inner liner pipe.

3. A condensing gas positive displacement water heater as defined in claim 2, wherein: an outer interlayer water jacket (17) of an annular structure is arranged on the inner liner (8) at a certain distance, and a cavity is arranged in the outer interlayer water jacket (17).

4. A condensing gas positive displacement water heater as defined in claim 3, wherein: the inner bile duct (8) is communicated with the outer interlayer water jacket (17) through a smoke channel (20).

5. A condensing gas positive displacement water heater as defined in claim 4, wherein: the inner ring of the outer interlayer water jacket (17) is provided with a plurality of spiral finned tubes (7).

6. A condensing gas positive displacement water heater as defined in claim 5, wherein: and two ends of the spiral finned tube (7) respectively penetrate through the outer part of the outer-layer interlayer water jacket (17).

7. A condensing gas positive displacement water heater as defined in claim 6, wherein: and a flange (18) is arranged on the inner bile duct (8).

8. A condensing gas positive displacement water heater as defined in claim 7, wherein: the outer interlayer water jacket (17) is connected with the flange (18) through a plurality of supporting pieces, and the supporting pieces are arranged in an annular array at intervals.

9. A condensing gas positive displacement water heater as defined in claim 8, wherein: the flange (18) is provided with a smoke outlet (19), the smoke outlet (19) is connected with a smoke exhaust pipe (11), and the smoke exhaust pipe (11) is provided with a condensed water outlet (15).