CN210980327U - Water heater - Google Patents

Abstract

The utility model discloses a water heater has solved the big and poor problem of cooling effect of the water tank processing degree of difficulty, and the technical scheme who solves this problem mainly includes water tank, combustor and the heat exchanger that has the inlet tube, and heat exchanger and combustor are installed respectively in the top and the below of water tank, the water tank includes locates the shell in the inner bag outside with the inner bag and the cover of combustor intercommunication, is equipped with the intermediate layer between inner bag and the shell, and the top of shell is equipped with intercommunication inlet tube and interbedded delivery port, and the bottom of shell is equipped with the water inlet that supplies water for the intermediate layer, is equipped with the water conservancy diversion piece that is used for extension water from the water inlet to delivery port circulation route in the intermediate. The utility model discloses the whole processing of well water tank is convenient, and is thermal-insulated effectual moreover, has also reduced the heat exchange time of heat exchanger, has improved the heating efficiency of water heater.

Description

Water heater

Technical Field

The utility model relates to a household electrical appliances technical field, especially a water heater.

Background

Current gas heater generally includes the combustor and is located the heat exchanger of combustor top, is equipped with the frame that encloses that has the inner chamber between combustor and the heat exchanger, and it has the coil pipe to enclose the winding of frame outside, and water injection in the coil pipe, the combustor burning generates heat, and the heat is in the inner chamber gathering transmits the coil pipe, and the heat is absorbed to the water that flows in the coil pipe to realize the cooling protection. But enclose the heat exchange rate of frame and coil pipe lower, can't guarantee that the combustor has safe surface temperature, simultaneously, the coil pipe is complicated with the structure of enclosing the frame, and especially the coil pipe has more department of buckling, and the processing degree of difficulty and consumptive material are great, and the coil pipe is corroded easily and appears leaking. Simultaneously, current heat exchanger and water source intercommunication, when just starting to start the water heater and heating, the water in the heat exchanger can't heat to preheating temperature in the short time, can't satisfy the user promptly with the demand of heating promptly, reduces user's use and experiences.

SUMMERY OF THE UTILITY MODEL

The utility model aims to reach the purpose that just provides a water heater, not only processing is convenient, and thermal-insulated effectual has moreover also reduced the heat exchange time of heat exchanger, has improved the heating efficiency of water heater.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a water heater, includes water tank, combustor and the heat exchanger that has the inlet tube, and heat exchanger and combustor are installed respectively in the top and the below of water tank, the water tank includes locates the shell in the inner bag outside with the inner bag and the cover of combustor intercommunication, is equipped with the intermediate layer between inner bag and the shell, and the top of shell is equipped with intercommunication inlet tube and interbedded delivery port, and the bottom of shell is equipped with the water inlet that supplies water for the intermediate layer, is equipped with the water conservancy diversion piece that is used for the extension water from the water inlet to delivery port circulation route in the intermediate layer.

Furthermore, the heat exchanger also comprises a water outlet pipe, a water outlet branch communicated with the interlayer and the water outlet pipe is arranged on the shell, and water flow in the water outlet branch flows to the water outlet pipe from the interlayer in a one-way mode.

Furthermore, a control valve is arranged in the water outlet branch, the control valve has a first use state that the water outlet pipe normally discharges water and a second use state that the water outlet pipe is opened again after being closed, and the control valve controls the water outlet branch to be closed in the first use state; and in the second use state, the control valve controls the conduction of the water outlet branch.

Furthermore, the flow deflector is arranged on the outer side surface of the inner container, and a backflow gap for slowing down the flow speed of water from the water inlet to the water outlet is arranged between the flow deflector and the outer shell.

Furthermore, the guide vane is spirally wound on the outer side surface of the inner container from bottom to top.

Further, the helical pitch L of the guide vane is (8mm, 25 mm).

Furthermore, the interlayer is of a multi-side-body structure, the flow deflector is at least arranged on one side surface of the interlayer, and the flow deflector extends in a reciprocating snake shape in the interlayer.

Further, the horizontal width S of the guide vane is (3mm, 15 mm).

Furthermore, the lower end of the inner container is provided with a lower flanging which is turned outwards, the lower end face of the shell is abutted to the lower flanging, the top of the burner is provided with a burner flanging which is turned outwards, the lower flanging is attached to the burner flanging and is connected with the burner flanging through a first screw, and the first screw is located on the outer side of the shell.

Furthermore, an upper flanging which is turned outwards is arranged at the upper end of the inner container, the upper flanging is lower than the upper end face of the shell, an annular step is formed by the upper flanging and the top of the shell, and the heat exchanger is arranged on the annular step.

After the technical scheme is adopted, the utility model has the advantages of as follows:

1. on the one hand, inner bag and shell form the intermediate layer that has thermal-insulated effect, the processing and the installation of whole water tank are more convenient, the water inlet is the intermediate layer water injection, the heat is absorbed and taken away to the flowing water, the heat of avoiding in the inner bag inner chamber passes through on inner bag and the intermediate layer transmission to the shell, prevent that the shell high temperature and scald the user, simultaneously, the intermediate layer that fills water has the heat preservation function, prevent the air in inner bag and the inner bag inner chamber from cooling down rapidly, the temperature of inner bag and heat exchanger is low when avoiding starting the water heater next time, the heating efficiency of water heater is improved. On the other hand, the interlayer is communicated with the water inlet pipe of the heat exchanger, so that the water which has absorbed heat in the interlayer enters the heat exchanger to absorb heat and then raise the temperature, the heat exchange time of the heat exchanger is reduced, the energy consumed by the combustor is saved, and the heat exchange pipeline in the heat exchanger is also shortened; in addition, the water entering the heat exchanger from the interlayer is warm water with a certain temperature, so that even if the situation that the heat exchange efficiency is not high exists when the water heater is just opened in winter, a user can enjoy the warm water, the use experience of the user is guaranteed, and the water heater can be heated immediately after being used. Finally, the flow deflector prolongs the path of water flowing in the interlayer, the retention time of the water in unit volume in the interlayer is long, and the contact area of the water in unit volume with the liner is large, so that more heat is absorbed, the heat insulation effect of the interlayer is enhanced, the temperature of the water flowing into the heat exchanger from the interlayer is higher, the heat exchange time of the heat exchanger is further shortened, and the heating efficiency of the water heater is improved.

2. Warm water in the intermediate layer flows in order to neutralize the cold water in the outlet pipe through the cooling branch road, the water that the outlet pipe flows out when avoiding restarting is too cold, improve user's use and experience, and simultaneously, the cooling branch road has one-way mobility, when guaranteeing that the outlet pipe just begins to go out water, warm water in the intermediate layer can directly flow to the outlet pipe, when also avoiding the outlet pipe normally to go out water, warm water in the outlet pipe flows back once more and gets into the intermediate layer, both guarantee the water efficiency of outlet pipe, avoid the high temperature of intermediate layer water again and influence thermal-insulated.

3. When the control valve is in the first use state, the control valve controls the cooling branch to be switched off, at the moment, water in the interlayer can only flow into the heat exchanger through the water outlet and the water inlet pipe, and then flows out through the water outlet pipe after heat exchange; and the control valve is used for controlling the conduction of the cooling branch under the second use state, and at the moment, water in the interlayer can flow into the heat exchanger through the water outlet and the water inlet pipe and also can flow into cold water in the water outlet pipe and the water outlet pipe through the cooling branch.

4. The water flowing along the flow deflector has a part which falls back again through the backflow gap to flow to the water inlet, so that the flow speed of the water in the interlayer between the water inlet and the water outlet is reduced, the flow time of the water in the interlayer is prolonged, more heat can be absorbed by the water in unit volume, the heat insulation effect of the interlayer is improved, the temperature of the water flowing into the heat exchanger is higher, and the heating efficiency of the water heater is further improved.

5. The water that the water conservancy diversion piece helicoid was coiled in the lateral surface of inner bag, and the water that flows along the water conservancy diversion piece can encircle and flow outside the inner bag, and interbedded thermal-insulated is more even in circumference, and simultaneously, water flows more smoothly on the water conservancy diversion piece, has reduced the noise that water produced when the intermediate layer flows.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

FIG. 1 is a half-section structure view of the water heater of the present invention;

FIG. 2 is an exploded view of the water heater according to the present invention;

FIG. 3 is a half-section structure diagram of the connection between the inner container and the outer casing of the utility model;

FIG. 4 is an enlarged view taken at A in FIG. 1;

fig. 5 is a structural diagram of the inner container of the water heater of the present invention.

Detailed Description

The first embodiment is as follows:

as shown in fig. 1 to 3, the embodiment provides a water heater, which includes a water tank 1, a burner 2, and a heat exchanger 3 having a water inlet pipe 31, wherein the heat exchanger 3 and the burner 2 are respectively installed above and below the water tank 1, the water tank 1 includes an inner container 11 communicated with the burner 2 and a housing 12 sleeved outside the inner container 11, an interlayer 13 is disposed between the inner container 11 and the housing 12, a water outlet 121 communicating the water inlet pipe 31 with the interlayer 13 is disposed at the top of the housing 12, a water inlet 122 for supplying water to the interlayer 13 is disposed at the bottom of the housing 12, and a flow deflector 14 for extending a flow path of water from the water inlet 122 to the water outlet 121 is disposed in the interlayer 13.

On the one hand, inner bag 11 and shell 12 form the intermediate layer 13 that has thermal-insulated effect, the processing and the installation of whole water tank 1 are more convenient, water inlet 122 is the intermediate layer 13 water injection, the heat is absorbed and taken away in the flowing water, avoid the heat in the 11 inner chambers of inner bag to transmit to shell 12 through inner bag 11 and intermediate layer 13 on, prevent that shell 12 high temperature from scalding the user, and simultaneously, the intermediate layer 13 that fills water has the heat preservation function, prevent the air in 11 inner chambers of inner bag and inner bag 11 from cooling down rapidly, the temperature of inner bag 11 and heat exchanger 3 is low when avoiding starting the water heater next time, improve the heating efficiency of water heater. On the other hand, the interlayer 13 is communicated with the water inlet pipe 31 of the heat exchanger 3, so that the water which has absorbed heat in the interlayer 13 enters the heat exchanger 3 to absorb heat and then raise the temperature, the heat exchange time of the heat exchanger 3 is reduced, the energy consumed by the combustor 2 is saved, and the heat exchange pipeline in the heat exchanger 3 is also shortened; in addition, the water entering the heat exchanger 3 from the interlayer 13 is warm water with a certain temperature, so that even if the situation that the heat exchange efficiency is not high exists when the water heater is just opened in winter, a user can enjoy the warm water, the use experience of the user is guaranteed, and the water heater can be used for heating instantly when being used. Finally, the flow deflector 14 prolongs the path of water flowing in the interlayer 13, the retention time of the water in unit volume in the interlayer 13 is long, and the contact area of the water in unit volume with the liner 11 is large, so that more heat is absorbed, the heat insulation effect of the interlayer 13 is enhanced, the temperature of the water flowing into the heat exchanger 3 from the interlayer 13 is higher, the heat exchange time of the heat exchanger 3 is further reduced, and the heating efficiency of the water heater is improved.

The heat exchanger 3 further comprises a water outlet pipe 32, when the water outlet pipe 32 is closed, part of water in the heat exchanger 3 can be remained and gradually cooled, or when the water outlet pipe 32 is restarted, because the heat exchange pipeline in the heat exchanger 3 is too cold, the water flowing out of the water outlet pipe 32 is also cold, in order to prevent the user experience from being reduced due to too low temperature of the water flowing out of the water outlet pipe 32 when the water outlet pipe 32 is opened next time, at the moment, a water outlet branch 123 for communicating the interlayer 13 and the water outlet pipe 32 can be arranged on the shell 12, and the water in the water outlet branch 123 flows to the water outlet pipe 32 from the interlayer. Warm water in the interlayer 13 flows into the water outlet pipe 32 through the water outlet branch 123 to neutralize cold water in the water outlet pipe 32, the cold water flowing out of the water outlet pipe 32 when restarting is avoided, the use experience of a user is improved, meanwhile, the water outlet branch 123 has one-way fluidity, when the water outlet pipe 32 is just started to discharge water, the warm water in the interlayer 13 can directly flow to the water outlet pipe 32, when the water outlet pipe 32 normally discharges water, the warm water in the water outlet pipe 32 flows back again to enter the interlayer 13, the water outlet efficiency of the water outlet pipe 32 is ensured, and the heat insulation is prevented from being influenced by the overhigh temperature of the water in the interlayer 13.

In order to realize the unidirectional flow of the water outlet branch 123, a control valve may be disposed in the water outlet branch 123, and the control valve has a first use state in which the water outlet pipe 32 normally discharges water and a second use state in which the water outlet pipe 32 is turned on again after being turned off. In the first use state of the control valve, the control valve controls the water outlet branch 123 to be turned off, at this time, water in the interlayer 13 can only flow into the heat exchanger 3 through the water outlet 121 and the water inlet pipe 31, and then flows out through the water outlet pipe 32 after heat exchange; in the second use state, the control valve controls the conduction of the water outlet branch 123, and at this time, the water in the interlayer 13 can flow into the heat exchanger 3 through the water outlet 121 and the water inlet pipe 31, and can also flow into the water outlet pipe 32 and the cold water in the water outlet pipe 32 through the water outlet branch 123. In this embodiment, the control valve is an electromagnetic one-way control valve, when the water outlet pipe 32 is restarted, the electromagnetic one-way control valve is closed in a delayed manner, so that warm water in the interlayer 13 can neutralize cold water in the water outlet pipe 32, after the preset delay time is up, the electromagnetic one-way control valve is closed, and the water outlet pipe 32 normally discharges water, and of course, the control valve may also be a mechanical one-way control valve.

Referring to fig. 4, in order to facilitate the processing of the baffle 14 and ensure that more water in the interlayer 13 contacts the inner container 11, the baffle 14 is disposed on the outer side surface of the inner container 11, and a backflow gap 15 for slowing down the flow rate of water from the water inlet 122 to the water outlet 121 is disposed between the baffle 14 and the housing 12. Part of the water flowing along the flow deflector 14 falls back again through the backflow gap 15 and flows towards the water inlet 122, the speed of the water flowing between the water inlet 122 and the water outlet 121 in the interlayer 13 is reduced, the flowing time of the water in the interlayer 13 is prolonged, more heat can be absorbed by the water in unit volume, the heat insulation effect of the interlayer 13 is improved, the temperature of the water flowing into the heat exchanger 3 is higher, and the heating efficiency of the water heater is further improved. In this embodiment, the baffle 14 may not be connected to the inner container 11, but the baffle 14 is disposed on the inner sidewall of the outer shell 12, and the backflow gap 15 is disposed between the baffle 14 and the inner container 11.

Referring to fig. 5, in order to ensure that water flowing along the flow deflector 14 uniformly contacts with the side surface of the inner container 11 to absorb heat, the flow deflector 14 may be spirally wound on the outer side surface of the inner container 11 from bottom to top, and water flowing along the flow deflector 14 may flow around the outer side of the inner container 11, so that the heat insulation of the interlayer 13 is more uniform in the circumferential direction, and simultaneously, the water flows more smoothly on the flow deflector 14, thereby reducing noise generated when the water flows in the interlayer 13.

The horizontal width S of the flow deflector 14 is (3mm, 15mm), which not only can ensure the flow guiding effect of the flow deflector 14, but also can avoid the water tank 1 from being too large as a whole. When S is smaller than 3mm, the flow deflector 14 is too narrow, and the flow guiding capacity of the flow deflector is limited; when S is larger than 15mm, the overall volume of the entire water tank 1 is increased.

In order to realize the installation and positioning between the inner container 11 and the outer shell 12, the lower end of the inner container 11 may be provided with a downward flanging 111 which is turned over outward, the lower end face of the outer shell 12 abuts against the downward flanging 111, the top of the burner 2 is provided with a burner flanging 21 which is turned over outward, the downward flanging 111 is attached to the burner flanging 21 and is connected with the burner flanging 21 through a first screw, and the first screw is located on the outer side of the outer shell 12. The downward flanging 111 prevents the shell 12 from moving downwards, so that the shell 12 and the liner 11 are positioned in the height direction, and meanwhile, the downward flanging 111 facilitates the connection of the water tank 1 and the burner 2 through screws.

The upper end of the inner container 11 is provided with an upper flanging 112 which is turned outwards, the upper flanging 112 is lower than the upper end face of the shell 12, the upper flanging 112 and the top of the shell 12 form an annular step 16, the heat exchanger 3 is mounted on the annular step 16, positioning of the heat exchanger 3 in the height direction and the horizontal direction is achieved, other positioning pieces are avoided being additionally arranged to achieve mounting of the heat exchanger 3, and the heat exchanger 3 is guaranteed to be stably mounted above the water tank 1.

Example two:

the interlayer 13 is of a multi-sided structure, the guide vane 14 is at least arranged on one side surface of the interlayer 13, and the guide vane 14 extends in a reciprocating serpentine manner in the interlayer 13. The reciprocating snakelike extending flow deflector 14 greatly increases the contact area between water and the inner container 11, the heat insulation effect of the side face of the interlayer 13 provided with the flow deflector 14 is good, meanwhile, the reciprocating snakelike extending flow deflector 14 increases the bending quantity of the flow path of the water, and the flowing speed of the water in the interlayer 13 to the water outlet 121 is greatly slowed down.

Other contents not described in this embodiment may refer to embodiment one.

In addition to the preferred embodiments described above, other embodiments of the present invention are also possible, and those skilled in the art can make various changes and modifications according to the present invention without departing from the spirit of the present invention, which should fall within the scope of the present invention defined by the appended claims.

Claims (10)

1. The utility model provides a water heater, includes water tank, combustor and the heat exchanger that has the inlet tube, and heat exchanger and combustor are installed respectively in the top and the below of water tank, its characterized in that, the water tank includes locates the shell in the inner bag outside with the inner bag and the cover of combustor intercommunication, is equipped with the intermediate layer between inner bag and the shell, and the top of shell is equipped with intercommunication inlet tube and interbedded delivery port, and the bottom of shell is equipped with the water inlet that supplies water for the intermediate layer, is equipped with the water conservancy diversion piece that is used for the extension water from the water inlet to delivery port circulation route in the intermediate.

2. The water heater according to claim 1, wherein the heat exchanger further comprises a water outlet pipe, a water outlet branch which is communicated with the interlayer and the water outlet pipe is arranged on the shell, and water in the water outlet branch flows to the water outlet pipe from the interlayer in a one-way mode.

3. The water heater according to claim 2, wherein a control valve is further arranged in the water outlet branch, the control valve has a first use state that the water outlet pipe normally discharges water and a second use state that the water outlet pipe is opened again after being closed, and in the first use state, the control valve controls the water outlet branch to be closed; and in the second use state, the control valve controls the conduction of the water outlet branch.

4. The water heater of claim 1, wherein the baffle is disposed on an outer side surface of the inner container, and a backflow gap for slowing down a flow rate of water from the water inlet to the water outlet is disposed between the baffle and the outer shell.

5. The water heater of claim 1, wherein the baffle is spirally wound around the outer side surface of the inner container from bottom to top.

6. The water heater of claim 5, wherein the helical pitch L of the baffle is (8mm, 25 mm).

7. The water heater according to claim 1, wherein said sandwich is a multi-sided body structure, and a deflector is disposed in at least one side of said sandwich, said deflector extending in a reciprocating serpentine pattern within said sandwich.

8. The water heater according to any one of claims 1 to 7, wherein the guide vane has a horizontal width S of (3mm, 15 mm).

9. The water heater according to any one of claims 1 to 7, wherein the lower end of the inner container is provided with a downward flange which is turned over outwards, the lower end face of the shell is abutted against the downward flange, the top of the burner is provided with a burner flange which is turned over outwards, the downward flange is attached to the burner flange and connected with the burner flange through a first screw, and the first screw is positioned on the outer side of the shell.

10. The water heater according to claim 9, wherein the upper end of the inner container is provided with an upward flange which is turned outwards, the upward flange is lower than the upper end surface of the shell, the upward flange and the top of the shell form an annular step, and the heat exchanger is arranged on the annular step.

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