CN219367963U - Water heating device and water heating system - Google Patents

Abstract

The utility model provides a water heating device and a water heating system, wherein the water heating device comprises: a housing; a water inlet pipe and a water outlet pipe which are communicated; the water inlet pipe is provided with a shell, a driving mechanism and a heating mechanism, wherein the driving mechanism is arranged in the shell, and the water inlet pipe flows under the action of the driving mechanism and can be heated by the heating mechanism; the water return pipe is communicated with the water inlet pipe, and at least part of the water return pipe is arranged inside the shell; the first valve is arranged on the water return pipe, only allows water in the water return pipe to flow towards the water inlet pipe, and has a preset first valve opening pressure. The water heating device and the water heating system provided by the embodiment of the utility model improve the accuracy of the water outlet temperature of the water heating device and the integration level of the water heating device.

Description

Water heating device and water heating system

Technical Field

The utility model relates to the technical field of hot water engineering, in particular to a hot water device and a hot water system.

Background

With the improvement of living standard, the gas water heating device has become one of the indispensable household appliances. The gas water heater generally uses gas as fuel, and transfers energy to cold water flowing through a heat exchanger in a combustion heating mode to achieve the purpose of preparing hot water.

At present, in order to solve the problems of small water pressure and insufficient water flow in use of the water heater, a water pump is arranged in the water heater to boost pressure. The applicant found that: in the use process of the gas water heating device with the preheating circulation function, hot water in the water return pipeline flows back to the water inlet pipe when a user uses water, so that the problem of overtemperature of the user water is easily caused, and the user experience is reduced.

It should be noted that the foregoing description of the background art is only for the purpose of providing a clear and complete description of the technical solution of the present utility model and is presented for the convenience of understanding by those skilled in the art. The above-described solutions are not considered to be known to the person skilled in the art simply because they are set forth in the background of the utility model section.

Disclosure of Invention

Aiming at the problems in the prior art, the embodiment of the utility model provides a water heating device and a water heating system, which can at least partially solve the problems in the prior art.

In one aspect, the present utility model provides a water heating apparatus comprising:

a housing;

a water inlet pipe and a water outlet pipe which are communicated;

the water inlet pipe is provided with a shell, a driving mechanism and a heating mechanism, wherein the driving mechanism is arranged in the shell, and the water inlet pipe flows under the action of the driving mechanism and can be heated by the heating mechanism;

the water return pipe is communicated with the water inlet pipe, and at least part of the water return pipe is arranged inside the shell;

the first valve is arranged on the water return pipe, only allows water in the water return pipe to flow towards the water inlet pipe, and has a preset first valve opening pressure.

Further, the water heating device further comprises a one-way valve, the one-way valve is arranged on the water return pipe, and the one-way valve only allows water in the water return pipe to flow to the water inlet pipe.

Further, the one-way valve and the first valve are sequentially arranged along the water return direction of the water return pipe.

Further, the check valve has a preset second valve opening pressure, which is smaller than the first valve opening pressure.

Further, the first valve adopts a magnetic valve and/or the one-way valve adopts a spring-type one-way valve.

Further, the one-way valve is at least partially disposed outside the housing.

Further, the water heating device further comprises a water return joint, the water return pipe comprises a water return water inlet, the check valve is arranged at the water return water inlet, the water return joint is detachably connected with the water return water inlet, and the check valve is respectively connected with the water return water inlet and the water return joint in a butt mode.

Further, a sealing gasket is arranged on the outer peripheral surface of the one-way valve, and the one-way valve is in sealing connection with the backwater joint through the sealing gasket.

Further, the first valve is disposed inside the housing.

Further, the water inlet pipe comprises a first communication part, and the water return pipe is detachably connected with the first communication part.

Further, a boss is arranged on the inner wall of the water return pipe, the first end of the first valve is abutted to the first communication part, and the second end of the first valve is abutted to the boss.

Further, the driving mechanism comprises a water pump, and a water inlet of the water pump is connected with the water inlet pipe in a plugging mode.

Further, the driving mechanism comprises a water pump, the water inlet pipe comprises a second communicating part, the second communicating part is detachably connected with the water inlet of the water pump, the water inlet of the water pump and the second communicating part are transversely arranged, and the main pipeline of the water inlet pipe is longitudinally arranged.

In another aspect, the present utility model provides a water heating system comprising:

the water heating apparatus according to any one of the above embodiments;

and the circulating pipeline is respectively communicated with the water return pipe and the water outlet pipe.

The water heating device and the water heating system provided by the embodiment of the utility model comprise a shell, a water inlet pipe and a water outlet pipe which are communicated, a driving mechanism and a heating mechanism which are arranged in the shell, wherein the water inlet of the water inlet pipe flows under the action of the driving mechanism and can be heated by the heating mechanism, the water return pipe is communicated with the water inlet pipe, at least part of the water return pipe is arranged in the shell, the first valve is arranged in the water return pipe, the first valve only allows water in the water return pipe to flow towards the water inlet pipe, and the first valve has preset first valve opening pressure.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art. In the drawings:

fig. 1 is a schematic structural view of a water heating apparatus according to a first embodiment of the present utility model.

Fig. 2 is a schematic structural view of a water heating device according to a second embodiment of the present utility model.

Fig. 3A is a schematic view of a partial three-dimensional structure of a water heating apparatus according to a third embodiment of the present utility model.

Fig. 3B is a schematic view of a partial cross-sectional structure of a water heating apparatus according to a third embodiment of the present utility model.

Fig. 4 is a schematic cross-sectional view of a water inlet pipe according to a fourth embodiment of the present utility model.

Fig. 5 is a schematic view of an installation structure of a water return pipe and a water inlet pipe according to a fifth embodiment of the present utility model.

Fig. 6 is a schematic structural view of a water heating system according to a sixth embodiment of the present utility model.

Reference numerals illustrate:

1. a water inlet pipe;

2. a water outlet pipe;

3. a driving mechanism;

4. a heating mechanism;

5. a water return pipe;

6. a first valve;

7. a one-way valve;

8. a backwater joint;

9. a backwater water inlet;

10. a filter;

11. a sealing gasket;

12. a first communication section;

13. a boss;

14. a gasket;

15. a second communication portion;

601. a water heating device;

602. a circulation line;

603. a cold water pipeline.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the embodiments of the present utility model will be described in further detail with reference to the accompanying drawings. The exemplary embodiments of the present utility model and their descriptions herein are for the purpose of explaining the present utility model, but are not to be construed as limiting the utility model. It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be arbitrarily combined with each other.

It should be noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present application and in the foregoing figures, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed or inherent to such process, method, article, or apparatus.

Fig. 1 is a schematic structural diagram of a water heating device according to a first embodiment of the present utility model, and as shown in fig. 1, the water heating device according to the embodiment of the present utility model includes:

a housing (not shown);

a water inlet pipe 1 and a water outlet pipe 2 which are communicated;

the driving mechanism 3 and the heating mechanism 4 are arranged in the shell, and the inlet water of the water inlet pipe 1 flows under the action of the driving mechanism 3 and can be heated by the heating mechanism 4;

the water return pipe 5 is communicated with the water inlet pipe 1, and the water return pipe 5 is at least partially arranged inside the shell;

the first valve 6, the first valve 6 is set in the return pipe 5, the first valve 6 allows only water in the return pipe 5 to flow toward the water inlet pipe 1, and the first valve 6 has a preset first valve opening pressure.

Specifically, the water heating device provided by the embodiment of the utility model has a preheating circulation mode and a normal working mode, and the water in the water return pipe 5 does not hopefully flow into the water inlet pipe 1 in the normal working mode. Under ordinary mode, inlet tube 1 external cold water pipe, after the water from cold water pipe flows into inlet tube 1, flows through heating mechanism 4 under the drive of actuating mechanism 3 and heats, and the rivers outlet pipe 2 after the heating, and outlet pipe 2 can external circulation pipeline, sets up the water point on the circulation pipeline, and the user uses hot water at the water point. The water return pipe 5 can be connected with the water outlet pipe 2 through the circulating pipeline, and since the first valve 6 is arranged on the water return pipe 5, the first valve 6 only allows water in the water return pipe 5 to flow towards the water inlet pipe 1, and the first valve 6 has a first valve opening pressure, when the driving mechanism 3 drives the water in the water inlet pipe 1 to flow into the heating mechanism 4, the first valve 6 cannot reach the first valve opening pressure, the first valve 6 is in a disconnection state, and hot water flowing out of the water outlet pipe 2 is prevented from flowing into the heating mechanism 4 through the water return pipe 5, so that water over-temperature of a user caused by hot water backflow in the water return pipe 5 is avoided.

In the preheating circulation mode, the water inlet pipe 1 is not communicated with the cold water pipe, hot water flowing out from the water outlet pipe 2 flows back to the water return pipe 5 through the circulation pipeline, when the pressure in the water return pipe 5 is higher than the first valve opening pressure, the first valve 6 is opened, the water in the water return pipe 5 flows into the water inlet pipe 1 and flows through the heating mechanism 4 to be circularly heated, and therefore preheating of water in a pipeline is achieved.

Wherein, the wet return 5 part is integrated inside the casing, and hot water system's integrated level is higher, also more pleasing to the eye. The return pipe 5 may be partially disposed outside the housing to facilitate connection of the return pipe 5 to an external circulation pipeline. The water heating device comprises, but is not limited to, a gas water heater, an electric water heater, a heat pump water heater and the like. The first valve opening pressure is set according to actual needs, and the embodiment of the utility model is not limited. The water outlet end of the water outlet pipe 2 can be provided with a water outlet joint so as to be conveniently connected with an external circulating pipeline. The water inlet end of the water inlet pipe 1 can be provided with a water inlet joint so as to be conveniently connected with a cold water pipe. The water inlet end of the water return pipe 5 can be provided with a water return joint so as to be conveniently connected with an external circulation pipeline.

The water heating device provided by the embodiment of the utility model comprises a shell, a water inlet pipe and a water outlet pipe which are communicated, a driving mechanism and a heating mechanism which are arranged in the shell, wherein water inlet of the water inlet pipe flows under the action of the driving mechanism and can be heated by the heating mechanism, a water return pipe is communicated with the water inlet pipe, the water return pipe is at least partially arranged in the shell, a first valve is arranged in the water return pipe, the first valve only allows water in the water return pipe to flow towards the water inlet pipe, and the first valve has preset first valve opening pressure. In addition, the return pipe is arranged inside the shell, so that the integration level of the water heating device is improved.

Fig. 2 is a schematic structural view of a water heating device according to a second embodiment of the present utility model, as shown in fig. 2, further including a check valve 7, where the check valve 7 is disposed on the water return pipe 5, and the check valve 7 only allows water in the water return pipe 5 to flow to the water inlet pipe 1.

Specifically, when the driving mechanism 3 drives the water in the water inlet pipe 1 to flow into the heating mechanism 4 under the condition that the sealing of the first valve 6 is not tight, a small amount of water in the water return pipe 5 flows into the water inlet pipe 1, so that the water in the water return pipe 5 is repeatedly heated, and the water outlet temperature of the water heating device is higher. By arranging the one-way valve 7 on the water return pipe 5, when the driving mechanism 3 drives the water in the water inlet pipe 1 to flow into the heating mechanism 4, the one-way valve 7 is closed, so that the condition that a small amount of water in the water return pipe 5 flows into the water inlet pipe 1 is avoided, and the accuracy of the water outlet temperature of the water heating device is further improved.

As shown in fig. 2, further, the check valve 7 and the first valve 6 are disposed in this order in the water return direction of the water return pipe 5 on the basis of the above embodiments. The backwater direction of the backwater pipe 5 is the direction in which the water in the backwater pipe 5 flows to the water inlet pipe 1.

Further, on the basis of the above embodiments, the check valve 7 has a preset second valve opening pressure, which is smaller than the first valve opening pressure.

Further, on the basis of the above embodiments, the first valve 6 is a magnetic valve and/or the check valve 7 is a spring check valve.

Further, on the basis of the above embodiments, the check valve 7 is at least partially disposed outside the housing, so as to facilitate replacement of the check valve 7.

Fig. 3A is a schematic view of a partial three-dimensional structure of a water heating device according to a third embodiment of the present utility model, and fig. 3B is a schematic view of a partial cross-sectional structure of a water heating device according to a third embodiment of the present utility model, as shown in fig. 3A and 3B, on the basis of the above embodiments, further, the water heating device includes a return water connector 8, the return water pipe 5 includes a return water inlet 9, the check valve 7 is disposed at the return water inlet 9, the return water connector 8 is detachably connected with the return water inlet 9, and the check valve 7 is respectively abutted to the return water inlet 9 and the return water connector 8.

Specifically, return water joint 8 is used for external circulation pipeline, and return water joint 8 can dismantle with return water inlet 9 and be connected to be convenient for change return water joint 8 or check valve 7. The water return joint 8 can be a quick joint, and is selected according to actual needs, and the embodiment of the utility model is not limited. The check valve 7 is respectively abutted with the backwater water inlet 9 and the backwater joint 8, so that the check valve is convenient to install and detach. The backwater joint 8 and the backwater water inlet 9 can be connected by adopting threads, and are arranged according to actual needs, and the embodiment of the utility model is not limited.

Further, a filter 10 may be provided on the return water connection 8 to filter water flowing through the return water connection.

On the basis of the above embodiments, further, the outer circumferential surface of the check valve 7 is provided with a sealing gasket 11, and the check valve 7 is in sealing connection with the backwater joint 8 through the sealing gasket 11, so as to prevent water leakage at the joint of the check valve 7 and the backwater joint 8.

Further, the first valve 6 is provided inside the housing on the basis of the above embodiments. Since the first valve 6 is provided inside the housing, the aesthetic appearance of the water heating apparatus is improved.

Fig. 4 is a schematic structural view of a water heating device according to a fourth embodiment of the present utility model, as shown in fig. 4, further, the water inlet pipe 1 includes a first communicating portion 12, and the water return pipe 5 is detachably connected to the first communicating portion 12. The first communication part 12 and the return pipe 5 may be connected by a clip or a seal screw. The first communicating portion 12 may be in the form of a hollow pipe or a runner injection molded by an in-mold injection molding method, and is set according to actual needs, which is not limited in the embodiment of the present utility model.

Further, a gasket may be provided at the junction of the first communication part 12 and the return pipe 5 to prevent water leakage at the junction of the first communication part 12 and the return pipe 5.

Fig. 5 is a schematic view of an installation structure of a water return pipe and a water inlet pipe according to a fifth embodiment of the present utility model, as shown in fig. 5, further, in the above embodiments, a boss 13 is provided on an inner wall of the water return pipe 5, a first end of the first valve 6 abuts against the first communication portion 12, and a second end of the first valve 6 abuts against the boss 13.

Specifically, the first valve 6 is installed in the return pipe 5. A boss 13 is provided on the inner wall of the return pipe 5 to restrict the movement of the first valve 6 in the axial direction. After the water return pipe 5 is attached to the first communicating portion 12, the first end of the first valve 6 abuts against the first communicating portion 12, and the first valve 6 is fixed in the water return pipe 5.

Further, a spacer 14 may be provided between the second end of the first valve 6 and the boss 13 to adjust the position of the first valve 6 in the axial direction.

On the basis of the above embodiments, further, the driving mechanism 3 comprises a water pump, and a water inlet of the water pump is connected with the water inlet pipe 1 in a plugging manner. Wherein, the water pump can adopt the booster pump.

As shown in fig. 4, the water inlet pipe 1 comprises a second communicating portion 15, the driving mechanism comprises a water pump, the second communicating portion 15 is detachably connected with a water inlet of the water pump, the water inlet of the water pump and the second communicating portion 15 are transversely arranged, and a main pipeline of the water inlet pipe 1 is longitudinally arranged.

The main pipeline of the water inlet pipe 1 is longitudinally arranged, and the second communicating part 15 communicated with the water pump and the water inlet of the water pump are transversely arranged, so that the structure in the shell is more compact, and the size of the water heating device is reduced.

Fig. 6 is a schematic structural diagram of a hot water system according to a sixth embodiment of the present utility model, and as shown in fig. 6, the hot water system according to the embodiment of the present utility model includes:

the water heating device 601 according to any one of the above embodiments;

the circulating pipeline 602, the circulating pipeline 602 is respectively communicated with the water return pipe 5 and the water outlet pipe 2.

Specifically, the first end of the circulation pipeline 602 is communicated with the water outlet pipe 2 through a water outlet connector, and the second end of the circulation pipeline 602 is communicated with the water return pipe 5 through a water return connector.

The hot water system can also comprise a cold water pipeline 603 and a water consumption point, wherein the cold water pipeline 603 is communicated with the water inlet pipe 1 through a water inlet joint. The water consumption point is respectively communicated with the cold water pipeline 603 and the circulating pipeline 602 through pipelines.

According to the hot water system provided by the embodiment of the utility model, by adopting the hot water device disclosed by any embodiment, hot water reflux of a water return pipeline can be avoided, and the accuracy of the water outlet temperature of the hot water device is improved.

In this specification, each embodiment is described in a progressive manner, and identical and similar parts of each embodiment are all referred to each other, and each embodiment mainly describes differences from other embodiments.

In the description of the present specification, reference to the terms "one embodiment," "one particular embodiment," "some embodiments," "for example," "an example," "a particular example," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the utility model, and is not meant to limit the scope of the utility model, but to limit the utility model to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

Claims (14)

1. A water heating apparatus, characterized in that it comprises:

a housing;

a water inlet pipe and a water outlet pipe which are communicated;

the water inlet pipe is provided with a shell, a driving mechanism and a heating mechanism, wherein the driving mechanism is arranged in the shell, and the water inlet pipe flows under the action of the driving mechanism and can be heated by the heating mechanism;

the water return pipe is communicated with the water inlet pipe, and at least part of the water return pipe is arranged inside the shell;

the first valve is arranged on the water return pipe, only allows water in the water return pipe to flow towards the water inlet pipe, and has a preset first valve opening pressure.

2. The water heating apparatus according to claim 1, further comprising a one-way valve provided to the return pipe, the one-way valve allowing only water in the return pipe to flow toward the inlet pipe.

3. The water heating apparatus according to claim 2, wherein the check valve and the first valve are disposed in order along a return water direction of the return water pipe.

4. The water heating apparatus according to claim 2, wherein the check valve has a preset second valve opening pressure, the second valve opening pressure being smaller than the first valve opening pressure.

5. The water heating device according to claim 2, wherein the first valve is a magnetic valve and/or the one-way valve is a spring-loaded one-way valve.

6. The water heating device of claim 2, wherein the one-way valve is at least partially disposed outside the housing.

7. The water heating device according to claim 2, further comprising a return water connector, wherein the return water pipe comprises a return water inlet, wherein the one-way valve is arranged at the return water inlet, wherein the return water connector is detachably connected with the return water inlet, and wherein the one-way valve is respectively abutted with the return water inlet and the return water connector.

8. The water heating apparatus according to claim 7, wherein a sealing gasket is provided on an outer circumferential surface of the check valve, and the check valve is sealingly connected to the return water joint through the sealing gasket.

9. The water heating apparatus according to claim 1, wherein the first valve is disposed inside the housing.

10. The water heating apparatus according to claim 1, wherein the water inlet pipe includes a first communication portion, and the water return pipe is detachably connected to the first communication portion.

11. The water heating apparatus according to claim 10, wherein the inner wall of the return pipe is provided with a boss, the first end of the first valve is abutted against the first communicating portion, and the second end of the first valve is abutted against the boss.

12. The water heating device according to claim 1, wherein the driving mechanism comprises a water pump, and a water inlet of the water pump is connected with the water inlet pipe in a plugging manner.

13. The water heating device according to claim 1, wherein the driving mechanism comprises a water pump, the water inlet pipe comprises a second communicating portion, the second communicating portion is detachably connected with a water inlet of the water pump, the water inlet of the water pump and the second communicating portion are transversely arranged, and a main pipeline of the water inlet pipe is longitudinally arranged.

14. A water heating system, comprising:

the water heating device of any one of claims 1 to 13;

and the circulating pipeline is respectively communicated with the water return pipe and the water outlet pipe.