CN202040974U

CN202040974U - Once-through coil type water heater

Info

Publication number: CN202040974U
Application number: CN2011200973008U
Authority: CN
Inventors: 刘之兵
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-04-06
Filing date: 2011-04-06
Publication date: 2011-11-16
Anticipated expiration: 2021-04-06

Abstract

The utility model discloses a once-through coil type water heater. The inside of a casing is divided by an intermediate wall so as to a combustion chamber and a smoke exhaust chamber, the combustion chamber is communicated with a combustion port, the smoke exhaust chamber is communicated with a chimney, both the upper end and the lower end of the intermediate wall are provided with smoke exhaust holes, and the combustion chamber is communicated with the smoke exhaust chamber through the smoke exhaust holes. An internal coil and an external coil are arranged in the combustion chamber, the internal coil is positioned in an inner cavity formed by coiling of the external coil, the front end of the internal coil is connected with a first water inlet pipe, a first seal ring is mounted between the front end of the internal coil and the inner wall of the front end of the casing, the rear end of the internal coil is connected with a first water outlet pipe, a clearance is formed between the front end of the external coil and the inner wall of the front end of the casing, the front end of the external coil is connected with a second water inlet pipe, a second seal ring is mounted between the rear end of the external coil and the intermediate wall, and the rear end of the external coil is connected with a second water outlet pipe. The once-through coil type water heater has the advantages of easiness in assembling, low cost, high thermal efficiency, long service life, safety, energy-saving property and the like, and is suitable for large-scale popularization and application.

Description

Single flow coil pipe water heater

Technical field

The utility model relates to a kind of water heater, particularly single flow coil pipe water heater.

Background technology

At present, water heater commonly used is filled clear water in housing, and the top of housing is provided with the smoke evacuation chamber, and the smoke evacuation chamber communicates with the external world by chimney.Bottom in the housing is provided with the combustion chamber, and the combustion chamber is communicated with by smoke pipe between the chamber with discharging fume.Also have port on the wall of housing, this port communicates with the combustion chamber.The deficiency that existing structure exists is:

1, welding capacity is big, assembling difficulty, cost height.

2, flue gas is too short in the time of body of heater internal flow, and the thermal efficiency is not high.

3, the combustion chamber is over against the easy fouling of the inwall of port, and the stress reason because of producing in the manufacturing process, and this inwall is fragile, leaks easily, and service life is shorter.

The utility model content

The single flow coil pipe water heater that provides a kind of thermal efficiency high is provided technical problem to be solved in the utility model.

The technical solution of the utility model is as follows: a kind of single flow coil pipe water heater, at the top of housing (1) chimney (2) is set, offer port (3) on the front bulkhead of housing (1), its key is: the inside of described housing (1) is separated into combustion chamber (5) and smoke evacuation chamber (6) by midfeather (4), wherein combustion chamber (5) communicate with port (3), smoke evacuation chamber (6) communicates with chimney (2), upper and lower side at described midfeather (4) all has exhaust opening (7), and combustion chamber (5) are communicated with smoke evacuation chamber (6) by exhaust opening (7); In described combustion chamber (5), be provided with inner coil pipe (8) and outside coil pipe (9), described inside and outside coil pipe all is coiled into coil spring shape, and inner coil pipe (8) is arranged in the formed inner chamber of outer coil pipe (9) coiling, the front end of described inner coil pipe (8) is connected to first water inlet pipe (10), and first sealing ring (11) is housed between the front inner wall of this end of inner coil pipe (8) and housing (1), this first sealing ring (11) is positioned at the periphery of port (3), and the rear end of inner coil pipe (8) is connected to first outlet pipe (12); Has the gap between the front inner wall of the front end of described outer coil pipe (9) and housing (1), and this termination of outer coil pipe (9) has second water inlet pipe (13), between the rear end of described outer coil pipe (9) and the midfeather (4) second sealing ring (14) is housed, and the rear end of outer coil pipe (9) is connected to second outlet pipe (15).

Adopt above technical scheme, the high-temperature flue gas that enters from port at first enters inner coil pipe and coils the formed inner chamber, then change direction and flow to gap between the inside and outside coil pipe, flow to exhaust opening from the gap between outer coil pipe and the inner walls after changing direction again, in the smoke evacuation chamber, compile the back at last and discharge from chimney.In the process of flow of flue gas, there is water to flow in the pipe of inside and outside coil pipe, the heat of flue gas passes to the interior clear water of pipe by coil pipe, water can be heated.The utility model is by three return-stroke type coil design, and the time that high-temperature flue gas flows in body of heater is long, and the contact area of coil pipe and flue gas is big, and heat transfer effect is good like this, thermal efficiency height.Simultaneously, the coiled construction joint is few, is 1/20th of common water heater, has reduced the stress that produces in the manufacturing process greatly, not only uses saferly, and can effectively increase the service life.

As preferably, be provided with base (16) in the bottom of described housing (1), housing (1) is supported by this base (16).

Connect for the ease of pipeline, described first water inlet pipe (10), first outlet pipe (12), second water inlet pipe (13) and second outlet pipe (15) all pass from the roof of housing (1).

Beneficial effect: the utlity model has and assemble easy, characteristics such as cost is low, the thermal efficiency is high, long service life, energy-saving safe, be suitable for large-scale promotion application.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

The specific embodiment

The utility model is described in further detail below in conjunction with drawings and Examples:

As shown in Figure 1, be provided with base 16 in the bottom of housing 1, housing 1 is supported by this base 16.Chimney 2 is equipped with in rear end at described housing 1 top, offers port 3 on the front bulkhead of housing 1.The inside of described housing 1 is separated into former and later two chambers by midfeather 4, and front chamber is combustion chamber 5, and rear chamber is smoke evacuation chamber 6, and the volume of combustion chamber 5 is greater than the volume of smoke evacuation chamber 6.Described combustion chamber 5 communicates with port 3, and smoke evacuation chamber 6 communicates with chimney 2, all has exhaust opening 7 at the upper and lower side of described midfeather 4, and combustion chamber 5 is communicated with the chamber 6 of discharging fume by exhaust opening 7.

As can be known from Fig. 1, be provided with inner coil pipe 8 and outer coil pipe 9 in combustion chamber 5, described inside and outside coil pipe 8,9 all is coiled into the coil spring shape gapless structure, and inner coil pipe 8 is arranged in outer coil pipe 9 and coils formed inner chamber.The front end of described inner coil pipe 8 is connected to first water inlet pipe 10, and between the front inner wall of this end of inner coil pipe 8 and housing 1 first sealing ring 11 is housed, and this first sealing ring 11 is positioned at the periphery of port 3, and the rear end of inner coil pipe 8 is connected to first outlet pipe 12; Has the gap between the front inner wall of the front end of described outer coil pipe 9 and housing 1, and this termination of outer coil pipe 9 has second water inlet pipe 13, second sealing ring 14 is housed between the rear end of described outer coil pipe 9 and the midfeather 4, and the rear end of outer coil pipe 9 is connected to second outlet pipe 15.Described first water inlet pipe 10, first outlet pipe 12, second water inlet pipe 13 and second outlet pipe 15 all pass from the roof of housing 1.

The flow direction of flue gas is in the utility model: the gap → outer coil pipe 9 between port 3 → inner coil pipe 8 coiling formed inner chamber → inside and outside coil pipes 8,9 and the gap → exhaust opening 7 between housing 1 inwall → smoke evacuation chamber 6 → chimney 2(are shown in arrow among the figure).In the process of flow of flue gas, there is water to flow in the pipe of inside and outside coil pipe 8,9, the heat of flue gas passes to the interior clear water of pipe by coil pipe, water can be heated.

Claims

1. single flow coil pipe water heater, at the top of housing (1) chimney (2) is set, offer port (3) on the front bulkhead of housing (1), it is characterized in that: the inside of described housing (1) is separated into combustion chamber (5) and smoke evacuation chamber (6) by midfeather (4), wherein combustion chamber (5) communicate with port (3), smoke evacuation chamber (6) communicates with chimney (2), upper and lower side at described midfeather (4) all has exhaust opening (7), and combustion chamber (5) are communicated with smoke evacuation chamber (6) by exhaust opening (7); In described combustion chamber (5), be provided with inner coil pipe (8) and outside coil pipe (9), described inside and outside coil pipe all is coiled into coil spring shape, and inner coil pipe (8) is arranged in the formed inner chamber of outer coil pipe (9) coiling, the front end of described inner coil pipe (8) is connected to first water inlet pipe (10), and first sealing ring (11) is housed between the front inner wall of this end of inner coil pipe (8) and housing (1), this first sealing ring (11) is positioned at the periphery of port (3), and the rear end of inner coil pipe (8) is connected to first outlet pipe (12); Has the gap between the front inner wall of the front end of described outer coil pipe (9) and housing (1), and this termination of outer coil pipe (9) has second water inlet pipe (13), between the rear end of described outer coil pipe (9) and the midfeather (4) second sealing ring (14) is housed, and the rear end of outer coil pipe (9) is connected to second outlet pipe (15).

2. single flow coil pipe water heater according to claim 1 is characterized in that: be provided with base (16) in the bottom of described housing (1), housing (1) is supported by this base (16).

3. single flow coil pipe water heater according to claim 1 is characterized in that: described first water inlet pipe (10), first outlet pipe (12), second water inlet pipe (13) and second outlet pipe (15) all pass from the roof of housing (1).