CN2278891Y - Spiral fuel oil/gas water heater - Google Patents

Abstract

The utility model relates to a spiral fuel oil/gas water heater. The spiral fuel oil/gas water heater is composed of a burner, a heat exchanger, a stove cover, a chimney, a water inlet pipe, and a water outlet pipe. The heat exchanger is composed of a plurality of cylindric upright type interlayer water sleeve barrels. Cylindric upright type interlayer water sleeve barrels of the interior are eccentrically arranged towards the same direction relative to a cylindric upright type interlayer water sleeve barrel on the outermost layer, and are provided with smoke guide holes. Each cylindric upright type interlayer water sleeve barrel is connected by a water pipe. Heat resistant materials are filled on the upper end and the lower end of the heat exchanger. The spiral fuel oil/gas water heater has high heat exchange efficiency and fast temperature rise. The welded seam of the spiral fuel oil/gas water heater is not easily damaged.

Description

Spiral fuel oil/air water heater

The utility model relates to a kind of stove formula heat exchanger, specifically is the water heater of a kind of fuel oil, combustion gas.

What fuel oil, gas water-heating furnace generally adopted at present is shell and tube exchanger, the ubiquitous characteristics of this stove formula water heater are that the metal consumption is big and structural rigidity is big, especially the big this point of structural rigidity makes the heater of this structure be difficult to overcome the shortcoming of the mouth of pipe that thermal stress causes or tube sheet junction (weld seam or expand mouthful) metal fatigue rhegma.

The purpose of the utility model is to provide a kind of compact conformation, and thermal efficiency height is difficult for being subjected to thermal stress to cause the water heater of rhegma.

The scheme that the utility model purpose realizes is: this heater comprises burner, heat exchanger, bell, chimney, inlet tube and outlet tube, wherein heat exchanger is made of two or more cylindric vertical type intermediate water sleeves, the internal water sleeve makes it form bigger space with respect to eccentric setting of outermost layer water mantle in the same direction, do the combustion chamber for burner, space between water mantle tube and tube constitutes the passage of hot working fluid (flue gas), be flue, each self mezzanine space constitutes the passage of cold working medium, i.e. water channel.Inner adjacent water mantle has smoke guiding hole and staggers mutually, makes flue gas divide the logical smoke through hole of two-way screw to enter next flue, the external chimney of innermost layer water mantle flue.Water inlet pipe is equipped with in each water mantle bottom, outlet pipe is equipped with on top, connect water channel by external pipe, the flow process that makes cold working-medium water enters water channel for the water inlet pipe from inner water sleeve tube bottom at first, divide two-way around the outlet pipe that flows to water channel top, tube connector by the outside enters water channel from the water inlet pipe of adjacent water mantle bottom again, and the water channel that flows into the outermost layer water mantle at last is along this water channel outlet pipe output body of heater.All fill out heat proof material flexible on the pad at the heat exchanger upper/lower terminal,, cover capping again, all be in the state that freely stretches, avoid because the weld seam rhegma that thermal stress may cause just constitute the metallic cylinder of water jacket as silicate aluminum board or rock wool etc.

The utility model is because the motion of working medium in heat exchanger has the component of circular motion, and the centrifugal force that forms during motion makes working medium be in strong turbulent condition, thereby heat exchange efficiency improves.And because the water journey is longer, reservoir storage is few in the heat exchanger, makes the water temperature temperature difference of heat exchanger inlet and outlet big, quick heating, that is heat exchanger has well the dynamically thermal efficiency.Simultaneously, heat exchanger is made up of the member that separates, and structural stress is little, and member is flexible free, is difficult for causing the weld seam rhegma because of thermal stress.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is example structure schematic diagram of the utility model.

Fig. 2 is the utility model heater heat exchanger structure schematic diagram.

Heater is made of heat exchanger 1, hot water outlet pipe 2, bell 3, chimney 4, burner 5, base 6, water inlet pipe 7 etc. as shown in Figure 1.Heat exchanger is cylindric, be inserted in successively by three intermediate water sleeves that vary in size 8,9,10 and form, wherein water mantle 9 and water mantle 10 are placed towards same direction is eccentric with respect to the axial line of water mantle 8, make the bigger space of formation between water mantle 8 and the water mantle 9, and, do combustion chamber 14 for burner 5 by hole on the bell 3 and burner 5 communications; Constitute flue 15 between water mantle 9 and the water mantle 10; 10 hearts of water mantle are flue 16, and this flue 16 is connected by hole on the bell 3 and chimney 4.Water mantle 9 and water mantle 10 stagger mutually 180 ° and locate to have smoke guiding hole 17 and smoke guiding hole 18.The fuel of burner 5 ejections is 14 burnings in the combustion chamber, flue gas at first in the chimney flue type combustion chamber 14 fens two-way for the helical movement, arrive cigarette hole 17, logical smoke through hole 17 enters flue 15, divide the two-way screw to cigarette hole 18 again, logical again smoke through hole 18 enters flue 16, enters chimney 4 from flue 16 at last, discharges body of heater.The mezzanine space of each water mantle 8,9,10 self constitutes water channel, i.e. water channel 13, water channel 12 and water channel 11, and every water mantle 8,9,10 is equipped with water inlet pipe and outlet pipe respectively, and water inlet pipe is in the bottom, and outlet pipe is on top.The outlet pipe of water mantle 8 is drawn outside the stove for hot water outlet pipe 2, and the outlet pipe monoclinic phase of water inlet pipe and water mantle 9 makes each water channel 13,12,11 connect to being connected by external pipe in this way, and the water inlet pipe of water mantle 10 is that cold water inlet 7 is drawn outside the stove.The flow process of cold working-medium water is to enter water channel 11 from water inlet pipe 7, divide two-way around the outlet pipe that flows to water channel 11 oblique tops, tube connector by the outside, enter water channel 12 from the water inlet pipe of water mantle 9 bottoms, enter next water channel more in this way, export bodies of heater from the hot outlet pipe 2 on water channel 13 tops at last.

Fill out the silicate aluminum board that is lined with flexibility at heat exchanger 1 upper/lower terminal.

Claims (4)

1. spiral fuel oil/air water heater, comprise burner, heat exchanger, bell, chimney, water inlet pipe and water outlet pipe, it is characterized in that heat exchanger is made of two or more cylindric vertical type intermediate water sleeves, the internal water sleeve is provided with respect to the outermost layer water mantle is eccentric in the same direction, inner adjacent water mantle has smoke guiding hole and staggers mutually, and each water mantle bottom is equipped with water inlet pipe, and outlet pipe is equipped with on the upper strata, and connect the external chimney of innermost layer water mantle flue mutually by external pipe.

2. according to the described spiral fuel oil of claim 1/air water heater, it is characterized in that inner adjacent water mantle smoke guiding hole staggers 180 ° mutually.

3. according to the described spiral fuel oil of claim 1/air water heater, it is characterized in that heat exchanger is made of three water mantles.

4. according to the described spiral fuel oil of claim 1/air water heater, it is characterized in that the heat exchanger upper/lower terminal is filled out to be lined with flexible heat proof material.

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