CN214307592U - Water heater - Google Patents

Abstract

The utility model discloses a water heater, include: the bottom of the inner container is provided with a water outlet and a pressure relief opening; the water outlet pipe is arranged at the water outlet; the pressure relief pipe is arranged at the pressure relief opening, and the upper end of the pressure relief pipe is higher than the upper end of the water outlet pipe in the inner container; and the pressure relief valve is arranged at the lower end of the pressure relief pipe. Therefore, water leakage or water dripping of the pressure relief valve can be avoided.

Description

Water heater

Technical Field

The utility model relates to a heating device technical field, in particular to water heater.

Background

The water heater generally includes an inner container, a water inlet pipe and a water outlet pipe, wherein the inner container is provided with a water inlet and a water outlet, the water inlet pipe extends into the inner container through the water inlet, and the water outlet pipe extends into the inner container through the water outlet.

In the related art, in order to avoid the internal water pressure of the inner container from being too high, a pressure release valve is arranged at the lower end of the water inlet pipe or the water outlet pipe, so that when the internal water pressure of the inner container is too high, the pressure is released through the pressure release valve to ensure the safety.

However, the water pressure in some of the user's homes is too high, which may cause the water pressure in the inner container to be too high, and the pressure relief valve is relieved to cause water drops. In addition, because the relief valve is installed on inlet tube or outlet pipe, after long-term use, incrustation scale, impurity etc. can block up the relief valve, lead to it can not normally relieve pressure to take place the incident easily.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims at providing a water heater aims at solving the technical problem that the relief valve easily drips and is blockked up.

In order to achieve the above object, the utility model provides a water heater, include:

the bottom of the inner container is provided with a water outlet and a pressure relief opening;

the water outlet pipe is arranged at the water outlet;

the pressure relief pipe is arranged at the pressure relief opening, and the upper end of the pressure relief pipe is higher than the upper end of the water outlet pipe in the inner container; and

and the pressure relief valve is arranged at the lower end of the pressure relief pipe.

Optionally, the top of the inner container is partially protruded to form a protrusion, a pressure relief cavity is formed on the inner side of the protrusion, and the upper end of the pressure relief pipe is arranged in the pressure relief cavity.

Optionally, the length of the part of the upper end of the pressure relief pipe higher than the upper end of the water outlet pipe is greater than or equal to 2 mm and less than or equal to 12 mm.

Optionally, a water pipe connector is arranged at the pressure relief opening, and the pressure relief pipe is mounted on the water pipe connector.

Optionally, the pressure relief pipe is arranged in the water pipe joint, and an external thread is arranged on the outer surface of the water pipe joint;

the water heater still includes the adapter, the adapter is located outside the pressure release pipe, the adapter include with pressure release pipe sealing connection's first switching section, and connect in the second switching section of first switching section one end, water pipe head locates the inboard of second switching section, the internal surface of second switching section is equipped with the internal thread, with water pipe head threaded connection.

Optionally, the second transition section has an inner diameter greater than an inner diameter of the first transition section.

Optionally, the pressure relief pipe includes an installation section and an extension section disposed at one end of the installation section, an outer diameter of the installation section is greater than an outer diameter of the extension section, the first switching section is connected to the installation section in a sealing manner, the extension section is disposed in the water pipe joint, and the water pipe joint is disposed between the extension section and the second switching section.

Optionally, the inner surface of the joint of the first adapter section and the second adapter section is provided with a limiting inner protrusion, and the water pipe joint abuts against the limiting inner protrusion.

Optionally, a first connecting convex portion is convexly provided on an outer circumferential surface of the pressure relief tube, a second connecting convex portion is convexly provided on an outer circumferential surface of the first junction section, the first junction section abuts against the first connecting convex portion, and the second connecting convex portion is connected with the first connecting convex portion, so that the pressure relief tube is fixed to the first junction section.

Optionally, the water heater further comprises a clamp connecting the first connecting convex part and the second connecting convex part; alternatively, the first and second electrodes may be,

the water heater further comprises a fastener, and the fastener is connected with the first connecting convex part and the second connecting convex part.

In the utility model, the pressure relief pipe is additionally arranged and is arranged in the inner container through the pressure relief port additionally arranged at the bottom of the inner container, and the upper end of the pressure relief pipe is higher than the upper end of the water outlet pipe in the inner container, so that the upper end of the pressure relief pipe is higher than the liquid level in the inner container, thus avoiding the water drainage in the area with overhigh water pressure or under the condition of pressure generated when a water heater is heated and expanded, and discharging the air at the top of the inner container through the pressure relief valve to avoid the water leakage or water dripping of the pressure relief valve; and because the upper end of the pressure release pipe is higher than the liquid level in the inner container, impurities, silt, water scale and the like in the water in the inner container of the water heater cannot enter the pressure release valve, the pressure release valve cannot be blocked, and the hidden danger that the water heater cannot normally release pressure and burst is avoided.

Therefore, the utility model discloses water heater safe and reliable, with low costs, production manufacturing process is simple.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of an embodiment of a water heater according to the present invention;

FIG. 2 is a schematic structural view of a joint between a pressure relief pipe and a water pipe joint on an inner container in another embodiment of the water heater of the present invention;

FIG. 3 is a schematic view of the construction of the transition joint of FIG. 2;

FIG. 4 is a schematic view of the structure of the clamp of FIG. 2;

fig. 5 is a schematic structural view of a joint between a pressure relief pipe and a water pipe joint on the inner container in another embodiment of the water heater of the present invention.

The reference numbers illustrate:

reference numerals	Name (R)	Reference numerals	Name (R)
				100	Water heater	50	Pressure relief valve
10	Inner container	60	Adapter
				15	Water pipe joint	61	First transfer section
20	Water outlet pipe	611	Second connecting convex part
				30	Water inlet pipe	62	Second switching section
40	Pressure relief pipe	63	Spacing inner convex
				41	First connecting projection	70	First annular seal
42	Mounting segment	80	Second annular seal
				43	Extension section	90	Clamp hoop

The objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that if the embodiments of the present invention are described with reference to "first", "second", etc., the description of "first", "second", etc. is only for descriptive purposes and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature.

In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B" including either scheme A, or scheme B, or a scheme in which both A and B are satisfied.

The utility model provides a water heater, wherein, the water heater can select for electric water heater etc..

In an embodiment of the present invention, as shown in fig. 1, the water heater 100 includes:

the water-saving water tank comprises an inner container 10, wherein the bottom of the inner container 10 is provided with a water outlet and a pressure relief opening;

a water outlet pipe 20 installed at the water outlet;

the pressure relief pipe 40 is arranged at the pressure relief opening, and the upper end of the pressure relief pipe 40 is higher than the upper end of the water outlet pipe 20 in the inner container 10; and

and a relief valve 50 attached to a lower end of the relief pipe 40.

Specifically, the water outlet pipe 20 extends into the inner container 10 through the water outlet, and the pressure release pipe 40 extends into the inner container 10 through the pressure release opening.

In use, the upper end of the outlet tube 20 extends into the inner container 10 and is generally located adjacent the top of the inner container 10 to provide heated water.

Optionally, the water heater 100 further includes a water inlet pipe 30, a water inlet is further disposed at the bottom of the inner container 10, and the water inlet pipe 30 is installed at the water inlet. Specifically, the water inlet pipe 30 extends into the inner container 10 through the water inlet.

Of course, the water inlet pipe 30 and the water outlet pipe 20 can be integrated into the water inlet/outlet pipe 20, and the water inlet/outlet can be integrated into the water inlet/outlet.

In use, the inlet pipe 30 is connected to a water supply (e.g., a tap water pipe, etc.), the outlet pipe 20 is connected to a water consumption end, e.g., the water consumption end includes a mixing valve and a shower head, and the outlet pipe 20 is connected to the shower head through the mixing valve.

When the water heater 100 is in use, the liquid level in the liner 10 is related to the height of the upper end of the water outlet pipe 20, that is, the water outlet pipe 20 determines the liquid level in the liner 10, and the upper end of the pressure release pipe 40 is higher than the upper end of the water outlet pipe 20 in the liner 10, so that the upper end of the pressure release pipe 40 is higher than the liquid level in the liner 10, that is, the upper end of the pressure release valve 50 is located above the liquid level in the liner 10.

The utility model discloses in, water heater 100 has following in service behavior:

1. the user needs the condition of water, opens and mixes the water valve, and outlet pipe 20 communicates with the gondola water faucet through mixing the water valve, and relief valve 50 does not bear pressure this moment, and is out of work.

2. The user does not use the condition of water, closes the muddy water valve, and outlet pipe 20 and gondola water faucet disconnection, and water pipe passes through inlet tube 30 and communicates inner bag 10, and inner bag 10, relief valve 50 bear the water pressure that the running water passed, and when water pressure was higher than the pressure release value of relief valve 50, the air of inner bag 10 inner liquid level top was discharged through relief valve 50 under water pressure promotes to realize the pressure release. That is, in the present invention, the pressure relief valve 50 discharges air rather than water when the pressure exceeds the pressure, so that the pressure relief valve 50 is prevented from leaking or dripping water, and the pressure relief valve 50 is also prevented from being blocked.

3. When the water heater 100 is heated, the pressure generated by the heating expansion is also discharged from the pressure release valve 50 under the pushing of the pressure of the air above the liquid level in the inner container 10 by the same principle, so that the pressure generated by the heating expansion of the water heater 100 is prevented from causing the pressure release valve 50 to leak or drip water.

4. Because of the higher water level in the upper end of the pressure release pipe 40, incrustation scale and impurities in the water can not enter the pressure release pipe 40, the pressure release valve 50 can not be blocked, and the hidden danger that the inner container 10 can not release the pressure and burst is avoided.

The utility model discloses in, through addding pressure release pipe 40, and install pressure release opening that pressure release pipe 40 was addd through inner bag 10 bottom in inner bag 10, and make the upper end of pressure release pipe 40 be higher than the upper end of outlet pipe 20 in inner bag 10, can make the upper end of pressure release pipe 40 be higher than the liquid level in inner bag 10, when inner bag 10 pressure is too high like this, can make the air at inner bag 10 top compressed, when reaching the pressure release value of relief valve 50, relief valve 50 is pushed open by pressure, the air gets into pressure release pipe 40 and discharges through relief valve 50, make the air of relief valve 50 exhaust like this, and nonaqueous, thereby can avoid the 50 drips of relief valve/leak, and can not get into relief valve 50 because of water, impurity such as incrustation scale has just also been avoided plugging up relief valve 50, thereby the safety in utilization is improved.

That is, by making the upper end of the pressure release pipe 40 higher than the liquid level in the inner container 10, the water is prevented from being discharged under the pressure generated in the area with too high water pressure or when the water heater 100 is heated and expanded, but the air at the top of the inner container 10 is discharged through the pressure release valve 50, so as to prevent the pressure release valve 50 from leaking or dripping water; and because the upper end of the pressure release pipe 40 is higher than the liquid level in the inner container 10, impurities, silt, incrustation scale and the like in the water in the inner container 10 of the water heater 100 cannot enter the pressure release valve 50, the pressure release valve 50 cannot be blocked, and the hidden danger that the water heater 100 cannot normally release pressure and burst is avoided.

Therefore, the utility model discloses water heater 100 simple structure, safe and reliable, with low costs, production manufacturing process is simple, the practicality is strong, solves the market complaint problem of 50 drips of market electric water heater 100 relief valves, has guaranteed electric water heater 100 safety.

Further, as shown in fig. 1, the length L of the portion of the upper end of the pressure relief pipe 40 higher than the upper end of the water outlet pipe 20 is greater than or equal to 2 mm and less than or equal to 12 mm. It can be understood that if the length L of the raised portion is too small, the upper end of the pressure relief pipe 40 is easily immersed by the liquid level in the inner container 10, so that water enters the pressure relief pipe 40; if the length L of the raised portion is too large, the effective usable volume ratio of the inner container 10 tends to be too small.

Specifically, the length L of the upper end of the pressure relief pipe 40 higher than the upper end of the water outlet pipe 20 may be 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or 10 mm.

Of course, in other embodiments, the top of the inner container 10 may be partially protruded to form a protrusion, a pressure relief cavity is formed inside the protrusion, and the upper end of the pressure relief tube 40 is disposed in the pressure relief cavity. Therefore, air at the top of the inner container 10 can be compressed into the pressure relief cavity, so that the distance between the liquid level in the inner container 10 and the top of the inner container 10 is reduced, and the effective use volume of the inner container 10 is increased.

Further, as shown in fig. 2, a water pipe connector 15 is arranged at the pressure relief opening, and the pressure relief pipe 40 is installed on the water pipe connector 15.

Specifically, the pressure release pipe 40 extends into the inner container 10 through the water pipe connector 15 and the pressure release opening, and the pressure release pipe 40 is connected with the water pipe connector 15, so that the pressure release pipe 40 is fixedly installed on the inner container 10.

The utility model discloses an in the basic design, can form the internal thread at water pipe head 15's internal surface to form the external screw thread at the surface of pressure release pipe 40 lower extreme, so that pressure release pipe 40 and water pipe head 15 threaded connection.

However, it should be noted that the inner container 10 is generally enameled according to the process requirements, and needs to be cured at a high temperature of 800 ℃ or higher after the enameling process. Due to the fluidity of the enamel inside the inner container 10, the inner wall surface of the water pipe connector 15 is uneven, which is not favorable for the radial sealing connection of the pressure relief pipe 40 and the water pipe connector 15.

In order to solve the above problem, the utility model discloses an add adapter 60 in further design, namely, make water heater 100 still includes adapter 60, pressure release pipe 40 passes through adapter 60 and connects in water pipe head 15.

As shown in fig. 2 and 3, in another embodiment of the present invention, the pressure relief pipe 40 is disposed inside the water pipe joint 15, and the outer surface of the water pipe joint 15 is provided with an external thread; outside the bleeder tube 40 was located to adapter 60, adapter 60 includes first changeover portion 61 with bleeder tube 40 sealing connection and connects in the second changeover portion 62 of first changeover portion 61 one end, water pipe head 15 locates the inboard of second changeover portion 62, the internal surface of second changeover portion 62 is equipped with the internal thread to with water pipe head 15 threaded connection.

Specifically, as shown in fig. 2, a joint groove is formed between the second adapter section 62 and the pressure relief pipe 40, and the water pipe joint 15 extends into the joint groove to be in threaded connection with the second adapter section 62.

Thus, the first adapter section 61 is hermetically connected outside the pressure relief pipe 40, so that water in the inner container 10 can be prevented from leaking from the connection part of the first adapter section 61 and the pressure relief pipe 40; and the second adapter section 62 is screwed with the water pipe joint 15, so that the water in the inner container 10 can be prevented from leaking from the joint of the second adapter section 62 and the water pipe joint 15, and the water in the inner container 10 can be prevented from leaking. Moreover, the threaded connection structure can make the connection between the adapter 60 and the water pipe connector 15 simple, convenient and firm, and is also beneficial to improving the connection sealing performance.

Therefore, the adapter 60 is additionally arranged to connect the pressure relief pipe 40 and the pressure relief pipe 40, so that the connection difficulty of the pressure relief pipe 40 and the pressure relief pipe can be reduced, and the connection sealing performance can be improved; and the connection of the pressure release pipe 40 to the water connection 15 is not affected by the inner surface of the water connection 15.

Further, as shown in fig. 2 and 3, the inner diameter of the second transition section 62 is larger than the inner diameter of the first transition section 61. In this manner, a joint groove may be formed between the second adapter section 62 and the pressure relief tube 40.

Specifically, since the inner diameter of the second adapter section 62 is larger than that of the first adapter section 61, a step surface is formed at the joint of the first adapter section 61 and the second adapter section 62, that is, a part of the end surface of the first adapter section 61 is exposed. Based on this, the water heater 100 may further include a first annular sealing member 70, and the first annular sealing member 70 is disposed between the end surface of the first transition section 61 and the joint end surface of the water pipe joint 15, so that an end surface seal may be formed, and thus a connection structure of a threaded connection and an end surface seal may be formed to improve sealing performance.

Optionally, the first ring member is a gasket, such as a rubber gasket or the like.

Further, as shown in FIG. 2, the water heater 100 further includes a second annular seal 80, the second annular seal 80 being disposed between the inner surface of the first transition section 61 and the outer surface of the lower end of the pressure relief tube 40.

Specifically, an annular accommodating groove is formed between the inner surface of the first adapter section 61 and the outer surface of the lower end of the pressure relief pipe 40, and the second annular sealing element 80 is arranged in the annular accommodating groove.

In this way, a radial seal may be achieved.

Specifically, the second annular seal 80 may be a sealing ring, such as an O-ring or the like.

Optionally, the second annular sealing element 80 is spaced apart (i.e. 2 or more), such as 2, 3 or 4, in the length direction of the pressure relief pipe 40.

Further, as shown in fig. 2 to 4, a first connecting convex portion 41 is protruded on an outer peripheral surface of the pressure-relief tube 40, a second connecting convex portion 611 is protruded on an outer peripheral surface of the first junction section 61, the first junction section 61 abuts against the first connecting convex portion 41, and the second connecting convex portion 611 is connected with the first connecting convex portion 41, so that the pressure-relief tube 40 is fixed to the first junction section 61.

In this manner, by providing the first connecting projection 41 and the second connecting projection 611, the difficulty of connection can be reduced.

Specifically, the second connecting convex part 611 is provided at one end of the first transition section 61 away from the second transition section 62, and the second connecting convex part 611 abuts against the first connecting convex part 41.

Alternatively, the first coupling protrusion 41 may be ring-shaped, and/or the second coupling protrusion 611 may be ring-shaped.

Further, the adapter 60 is made of a corrosion-resistant material (such as stainless steel); alternatively, the surface of the adapter 60 may be provided with a corrosion resistant layer (e.g., nickel and/or chromium may be plated on the surface of the adapter 60 made of (Q235) steel, or nickel and/or chromium may be plated on the surface of the adapter 60 made of zinc alloy, etc.).

Thus, the corrosion resistance of the adapter 60 can be improved, and the service life can be prolonged.

In a specific application, the connection form between the first connecting protrusion 41 and the second connecting protrusion 611 is various, and the following examples are given.

Further, as shown in fig. 2 to 4, the water heater 100 further includes a clip 90, and the clip 90 connects the first connecting protrusion 41 and the second connecting protrusion 611.

Alternatively, the water heater 100 further includes a fastening member (e.g., a screw, a bolt, a connecting pin, etc.), and the fastening member is inserted through the first connecting protrusion 41 and the second connecting protrusion 611 in sequence to connect the first connecting protrusion 41 and the second connecting protrusion 611.

In another embodiment of the present invention, as shown in fig. 5, it is different from the previous embodiment in the way of forming the joint groove.

Specifically, in this embodiment, as shown in fig. 5, the pressure relief pipe 40 includes a mounting section 42 and an extension section 43 disposed at one end of the mounting section 42, an outer diameter of the mounting section 42 is larger than an outer diameter of the extension section 43, the first adapter section 61 is connected to the mounting section 42 in a sealing manner, the extension section 43 is disposed in the water pipe connector 15, and a connector groove is formed between the extension section 43 and the second adapter section 62, that is, the water pipe connector 15 is disposed between the extension section 43 and the second adapter section 62.

Specifically, the mounting section 42 is located at the lower end of the pressure relief tube 40.

In this embodiment, optionally, as shown in fig. 5, an inner surface of a junction of the first adapter section 61 and the second adapter section 62 is provided with a limiting inner protrusion 63, and the water pipe connector 15 abuts against the limiting inner protrusion 63.

Specifically, as shown in fig. 5, the water pipe joint 15 abuts against one side of the stopper protrusion 63, and the mounting section 42 abuts against the other side of the stopper protrusion.

Thus, the connection sealing performance can be improved.

Specifically, as shown in fig. 5, the first annular sealing member 70 is disposed between the water pipe joint 15 and the position-limiting inward protrusion 63.

Specifically, as shown in fig. 5, the first connecting protrusion 41 is provided on the mounting section 42.

The above is only the optional embodiment of the present invention, and not the scope of the present invention is limited thereby, all the equivalent structure changes made by the contents of the specification and the drawings are utilized under the inventive concept of the present invention, or the direct/indirect application in other related technical fields is included in the patent protection scope of the present invention.

Claims (10)

1. A water heater, comprising:

the bottom of the inner container is provided with a water outlet and a pressure relief opening;

the water outlet pipe is arranged at the water outlet;

the pressure relief pipe is arranged at the pressure relief opening, and the upper end of the pressure relief pipe is higher than the upper end of the water outlet pipe in the inner container; and

and the pressure relief valve is arranged at the lower end of the pressure relief pipe.

2. The water heater according to claim 1, wherein the top of the inner container is partially protruded to form a protrusion, a pressure relief cavity is formed inside the protrusion, and the upper end of the pressure relief pipe is arranged in the pressure relief cavity.

3. The water heater according to claim 1, wherein a length of a portion of the upper end of the pressure relief pipe higher than the upper end of the water outlet pipe is greater than or equal to 2 mm and less than or equal to 12 mm.

4. A water heater as claimed in any one of claims 1 to 3, wherein a water pipe connector is provided at the pressure relief port, and the pressure relief pipe is mounted to the water pipe connector.

5. The water heater according to claim 4, wherein said pressure relief tube is disposed within said water connection, said water connection having an external thread on an outer surface thereof;

the water heater still includes the adapter, the adapter is located outside the pressure release pipe, the adapter include with pressure release pipe sealing connection's first switching section, and connect in the second switching section of first switching section one end, water pipe head locates the inboard of second switching section, the internal surface of second switching section is equipped with the internal thread, with water pipe head threaded connection.

6. The water heater as recited in claim 5 wherein an inner diameter of said second transition section is greater than an inner diameter of said first transition section.

7. The water heater according to claim 5, wherein the pressure relief pipe comprises a mounting section and an extension section disposed at one end of the mounting section, the mounting section has an outer diameter larger than that of the extension section, the first adapter section is sealingly connected to the mounting section, the extension section is disposed in the water pipe connector, and the water pipe connector is disposed between the extension section and the second adapter section.

8. The water heater as claimed in claim 7, wherein the inner surface of the junction of the first and second switching sections is provided with an inward limiting projection, and the water pipe joint abuts against the inward limiting projection.

9. The water heater according to claim 5, wherein a first connection protrusion is protruded on an outer circumferential surface of the pressure relief pipe, a second connection protrusion is protruded on an outer circumferential surface of the first junction section, the first junction section abuts against the first connection protrusion, and the second connection protrusion is connected with the first connection protrusion so that the pressure relief pipe is fixed to the first junction section.

10. The water heater as claimed in claim 9, further comprising a clip connecting the first connecting protrusion and the second connecting protrusion; alternatively, the first and second electrodes may be,

the water heater further comprises a fastener, and the fastener is connected with the first connecting convex part and the second connecting convex part.

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