CN221526901U

CN221526901U - Liquid heater

Info

Publication number: CN221526901U
Application number: CN202323661194.3U
Authority: CN
Inventors: 区永健; 刘建航; 伍务泉; 赖加军; 叶小松
Original assignee: Guangdong Headway Electric Heat Components Co ltd
Current assignee: Guangdong Headway Electric Heat Components Co ltd
Priority date: 2023-12-29
Filing date: 2023-12-29
Publication date: 2024-08-13
Anticipated expiration: 2033-12-29

Abstract

The utility model discloses a liquid heater, which comprises an electric heating tube, a water tube and a sleeve, wherein the water tube is arranged outside the electric heating tube and is provided with a water outlet and a first water inlet; the sleeve pipe is sleeved outside the water pipe, a preheating cavity is arranged between the sleeve pipe and the water pipe, the sleeve pipe is provided with a water outlet pipe body and a second water inlet, one end of the water outlet pipe body extends into the sleeve pipe and is connected with the water outlet, the other end of the water outlet pipe body is communicated with the outside of the sleeve pipe, and the second water inlet and the first water inlet are arranged at intervals; the water pipe is arranged outside the electric heating pipe, so that heat of the electric heating pipe can be transferred to the water pipe, water in the water pipe can be heated, the sleeve is sleeved outside the water pipe, heat of the water pipe can be transferred to the outside of the water pipe, and water in the preheating cavity can be preheated, and therefore the water enters the preheating cavity from the second water inlet for preheating, then enters the water pipe from the first water inlet for further heating, and the speed of heating the water is improved.

Description

Liquid heater

Technical Field

The utility model relates to the field of hot water heating devices, in particular to a liquid heater.

Background

The existing instant heating type hot water heating device comprises an electric heating tube and a water tube spirally wound outside the electric heating tube, and achieves the instant heating effect of hot water by extending the length of the water tube, but the existing instant heating type hot water heating device does not utilize the waste heat of the water tube to preheat the water, and then the heating speed of the water is slow.

Disclosure of utility model

The present utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a liquid heater.

According to a first aspect of the utility model, a liquid heater comprises an electric heating tube, a water tube and a sleeve, wherein the water tube is arranged outside the electric heating tube, and the water tube is provided with a water outlet and a first water inlet which are arranged at intervals along the axial direction of the water tube; the sleeve is sleeved outside the water pipe, a preheating cavity is formed between the sleeve and the water pipe, the sleeve is provided with a water outlet pipe body and a second water inlet communicated with the preheating cavity, one end of the water outlet pipe body stretches into the sleeve to be connected with the water outlet, the other end of the water outlet pipe body is communicated with the outside of the sleeve, a water flow channel from the second water inlet to the first water inlet is formed in the sleeve, and the second water inlet and the first water inlet are arranged along the water flow channel at intervals. .

The liquid heater according to the embodiment of the utility model has at least the following technical effects: the water pipe is arranged outside the electric heating pipe, heat of the electric heating pipe can be transferred to the water pipe, water in the water pipe can be further heated, the sleeve is sleeved outside the water pipe, heat of the water pipe can be transferred to the outside of the water pipe, and water in the preheating cavity can be further preheated, so that water firstly enters the preheating cavity from the second water inlet to be preheated, then enters the water pipe through the first water inlet to be further heated, and the speed of heating water is improved.

According to some embodiments of the utility model, the position of the second water inlet corresponds to the position of the water outlet.

According to some embodiments of the utility model, the water tube is helically wound around the electric heating tube.

According to some embodiments of the utility model, the water pipe comprises a protruding part protruding along the radial direction of the electric heating pipe, one end of the protruding part, which is close to the electric heating pipe, is provided with a concave part, and the side wall of the electric heating pipe and the inner wall of the concave part are enclosed to form a heating cavity.

According to some embodiments of the utility model, the electric heating tube comprises a first electrode lead, a second electrode lead, a heating wire and a thermal fuse body, wherein two ends of the thermal fuse body are respectively connected with the first electrode lead and one end of the thermal fuse body, and two ends of the heating wire are respectively connected with the other end of the thermal fuse body and the second electrode lead.

According to some embodiments of the utility model, the outlet pipe body is detachably connected to the sleeve and the outlet, and the water pipe is detachably connected to the sleeve.

According to some embodiments of the utility model, the sleeve comprises a first end cover, a second end cover and a hollow first pipe body, the first pipe body is sleeved outside the water pipe, the first end cover and the second end cover are respectively detachably arranged at two ends of the first pipe body, the first end cover and the second end cover are used for sealing the preheating cavity, the outer side wall of the first pipe body is provided with a mounting hole, and the water pipe can be connected with the water outlet through the mounting hole and is in sealing connection with the mounting hole.

According to some embodiments of the utility model, the water pipe includes a hollow second pipe body, a first protruding portion and a second protruding portion, the second pipe body has the first protruding portion and the second protruding portion protruding in a radial direction of the second pipe body and the protruding portion in a spiral shape, the first protruding portion is provided with the water outlet, the second protruding portion is provided with the first water inlet, and the protruding portion is located between and communicates with the first protruding portion and the second protruding portion.

According to some embodiments of the utility model, the second water inlet is connected with a water inlet pipe body.

According to some embodiments of the utility model, the left and right ends of the sleeve are provided with necking parts which are connected with the water pipe or the electric heating pipe in a sealing way, and the water outlet and the first water inlet are positioned between the necking parts.

Additional aspects and advantages of the utility model will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.

Drawings

Additional aspects and advantages of the present utility model will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings, in which:

fig. 1 is a sectional view of a liquid heater of a first embodiment;

fig. 2 is an enlarged view at a shown in fig. 1;

Fig. 3 is an enlarged view at B shown in fig. 1;

FIG. 4 is a schematic view of the structure of a water pipe;

FIG. 5 is a cross-sectional view of a water line;

fig. 6 is an exploded view of the liquid heater of the first embodiment;

Fig. 7 is a sectional view of a liquid heater of the second embodiment.

Reference numerals: the electric heating tube 100, the first electrode lead 110, the second electrode lead 120, the heating wire 130, the thermal fuse 140, the water tube 200, the water outlet 210, the first water inlet 220, the convex part 230, the concave part 231, the heating cavity 240, the second tube 250, the first convex part 260, the second convex part 270, the sleeve 300, the preheating cavity 310, the water outlet tube 320, the second water inlet 330, the first end cover 340, the second end cover 350, the first tube 360, the water inlet tube 370 and the necking part 380.

Detailed Description

Embodiments of the present utility model are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the utility model.

In the description of the present utility model, the description of the first and second is only for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implying the number of technical features indicated or the precedence of the technical features indicated.

In the description of the present utility model, unless explicitly defined otherwise, terms such as arrangement, installation, connection, etc. should be construed broadly and the specific meaning of the terms in the present utility model can be reasonably determined by a person skilled in the art in combination with the specific contents of the technical scheme.

Referring to fig. 1, 2 and 3, the liquid heater according to the embodiment of the present utility model includes an electric heating tube 100, a water tube 200 and a sleeve 300, wherein the water tube 200 is disposed outside the electric heating tube 100, and thus heat of the electric heating tube 100 can be transferred to the water tube 200, thereby heating water in the water tube 200, the water tube 200 has a water outlet 210 and a first water inlet 220 which are disposed at intervals along an axial direction of the water tube 200, i.e., water enters the water tube 200 from the first water inlet 220, and the water moves along a length of the water tube 200, and thus the electric heating tube 100 gradually heats the water, and is discharged from the water outlet 210 after the water heating is completed; the sleeve 300 is sleeved outside the water pipe 200 and the electric heating pipe 100, a preheating cavity 310 is arranged between the sleeve 300 and the water pipe 200, so that the waste heat of the water pipe 200 can heat water in the preheating cavity 310 positioned outside the sleeve to achieve the effect of water preheating, the sleeve 300 is provided with a water outlet pipe body 320 and a second water inlet 330 communicated with the preheating cavity 310, one end of the water outlet pipe body 320 stretches into the sleeve 300 to be connected with the water outlet 210, the other end of the water outlet pipe body 320 is communicated with the outside of the sleeve 300, a water flow channel from the second water inlet 330 to the first water inlet 220 is formed in the sleeve 300, and the second water inlet 330 and the first water inlet 220 are arranged at intervals along the water flow channel, so that the water is preheated firstly and then enters the water pipe 200 to be heated, and the speed of heating water is improved; it is contemplated that the number of the second water inlets 330 may be plural, the number of the second water inlets may be selected according to need, or the positions of the water inlets 330 may be set according to need, for example, the water inlets 330 may be provided at the middle of the sleeve 300.

In operation, water enters the preheating chamber 310 from the second water inlet 330 for preheating, enters the water pipe 200 through the first water inlet 220 for further heating, and is discharged through the water outlet 210 and the water outlet pipe body 320.

In some embodiments of the present utility model, as shown in fig. 1 and 2, the position of the second water inlet 330 corresponds to the position of the water outlet 210, so that the preheating chamber 310 between the second water inlet 330 and the first water inlet 220 has a sufficient length, thereby improving the preheating effect and further improving the speed of heating water.

In some embodiments of the present utility model, the water pipe 200 is spirally wound outside the electric heating pipe 100 to extend the length of the water pipe 200, so that the water is sufficiently heated to achieve the instant heating effect.

In a further embodiment of the present utility model, as shown in fig. 2, 4 and 5, the water pipe 200 includes a protrusion 230 protruding along the radial direction of the electric heating tube 100, one end of the protrusion 230 near the electric heating tube 100 has a recess 231 recessed toward the outside of the electric heating tube 100, and the sidewall of the electric heating tube 100 and the inner wall of the recess 231 enclose a heating cavity 240, so that water directly contacts the outer sidewall of the electric heating tube 100, thereby improving the effect of heating water.

In a further embodiment of the present utility model, as shown in fig. 1, the electric heating tube 100 includes a first electrode lead 110, a second electrode lead 120, a heating wire 130 and a thermal fuse 140, two ends of the thermal fuse 140 are respectively connected with one ends of the first electrode lead 110 and the thermal fuse 140, two ends of the heating wire 130 are respectively connected with the other end of the thermal fuse 140 and the second electrode lead 120, and by providing the thermal fuse 140, an over-temperature protection effect is achieved, and safety of the liquid heater is improved.

In a further embodiment of the present utility model, as shown in fig. 1 and 6, the water outlet pipe body 320 is detachably connected to the sleeve 300 and the water outlet 210, and the water pipe 200 is detachably connected to the sleeve 300, so that the sleeve 300 can be detached from the water pipe 200, and the water pipe 200 and the electric heating pipe 100 can be used alone or in combination with the sleeve 300.

In a further embodiment of the present utility model, as shown in fig. 1 and 4, the water pipe 200 includes a hollow second pipe body 250, a first protrusion 260 and a second protrusion 270, the second pipe body 250 having the first protrusion 260 and the second protrusion 270 protruding in a radial direction of the second pipe body 250 and a spiral protrusion 230, the first protrusion 260 being provided with the water outlet 210, the second protrusion 270 being provided with the first water inlet 220, the protrusion 230 being located between the first protrusion 260 and the second protrusion 270 and communicating with the first protrusion 260 and the second protrusion 270.

The spiral protruding portion 230 is provided, so that water can roll when flowing in the spiral protruding portion 230, heat can be absorbed easily, the temperature of the outer surface of the water pipe 200 is reduced rapidly after heating is stopped, and the temperature of the surface of the water pipe 200 of two adjacent protruding portions 230 is lower than that of the protruding portions 230, which indicates that the heat absorption efficiency of water is high.

In a further embodiment of the present utility model, as shown in fig. 1 and 6, the sleeve 300 includes a first end cap 340, a second end cap 350 and a hollow first tube body 360, the first tube body 360 is sleeved outside the water tube 200, the first end cap 340 and the second end cap 350 are detachably mounted at two ends of the first tube body 360, the first end cap 340 and the second end cap 350 are used for sealing the preheating chamber 310, the outer side wall of the first tube body 360 has a mounting hole, and the water tube 200 can be connected with the water outlet 210 through the mounting hole and is in sealing connection with the mounting hole.

When in installation, the water pipe 200 and the electric heating pipe 100 are arranged in the first pipe body 360, the first end cover 340 and the second end cover 350 are respectively positioned at two ends of the second pipe body 250 and are arranged between the first pipe body 360 and the second pipe body 250, so that the preheating cavity 310 between the first pipe body 360 and the second pipe body 250 is sealed, and the water outlet pipe body 320 is inserted into the water outlet 210 through the installation hole; when disassembled, the first end cap 340, the second end cap 350 and the outlet pipe body 320 are removed.

In some embodiments of the present utility model, as shown in fig. 1, the second water inlet 330 is connected with a water inlet pipe body 370, so as to be connected with other structures.

In some embodiments of the present utility model, as shown in fig. 7, both left and right ends of the sleeve 300 have the reduced mouth parts 380 in sealing connection with the water pipe 200 or the electric heating tube 100, and the water outlet 210 and the first water inlet 220 are positioned between the two reduced mouth parts 380, so that the preheating chamber 310 is positioned between the water outlet 210 and the first water inlet 220, thereby avoiding that partial water is not heated.

In the description of the present specification, reference to the term "some embodiments" or "what may be considered to be" 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.

While embodiments of the present utility model have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the utility model, the scope of which is defined by the claims and their equivalents.

Claims

1. A liquid heater, comprising:

An electric heating tube;

The water pipe is arranged outside the electric heating pipe and is provided with a water outlet and a first water inlet which are arranged at intervals along the axial direction of the water pipe;

The sleeve pipe is sleeved outside the water pipe, a preheating cavity is formed between the sleeve pipe and the water pipe, the sleeve pipe is provided with a water outlet pipe body and a second water inlet communicated with the preheating cavity, one end of the water outlet pipe body stretches into the sleeve pipe to be connected with the water outlet, the other end of the water outlet pipe body is communicated with the outside of the sleeve pipe, a water flow channel from the second water inlet to the first water inlet is formed in the sleeve pipe, and the second water inlet and the first water inlet are arranged along the water flow channel at intervals.

2. A liquid heater as claimed in claim 1, wherein: the position of the second water inlet corresponds to the position of the water outlet.

3. A liquid heater as claimed in claim 1, wherein: the water pipe is spirally wound outside the electric heating pipe.

4. A liquid heater as claimed in claim 1 or claim 3, wherein: the water pipe comprises a protruding portion protruding along the radial direction of the electric heating pipe, one end, close to the electric heating pipe, of the protruding portion is provided with a concave portion, and the side wall of the electric heating pipe is enclosed with the inner wall of the concave portion to form a heating cavity.

5. A liquid heater as claimed in any one of claims 1 to 3, wherein: the electric heating tube comprises a first electrode leading rod, a second electrode leading rod, a heating wire and a thermal fuse body, wherein two ends of the thermal fuse body are respectively connected with the first electrode leading rod and one end of the thermal fuse body, and two ends of the heating wire are respectively connected with the other end of the thermal fuse body and the second electrode leading rod.

6. A liquid heater as claimed in any one of claims 1 to 3, wherein: the water outlet pipe body is detachably connected with the sleeve and the water outlet, and the water pipe is detachably connected with the sleeve.

7. The liquid heater as claimed in claim 6, wherein: the sleeve comprises a first end cover, a second end cover and a hollow first pipe body, wherein the first pipe body is sleeved outside the water pipe, the first end cover and the second end cover are respectively detachably installed at two ends of the first pipe body, the first end cover and the second end cover are used for sealing the preheating cavity, the outer side wall of the first pipe body is provided with a mounting hole, and the water pipe can pass through the mounting hole to be connected with the water outlet and be in sealing connection with the mounting hole.

8. The liquid heater as claimed in claim 4, wherein: the water pipe comprises a hollow second pipe body, a first protruding portion and a second protruding portion, the second pipe body is provided with the first protruding portion protruding along the radial direction of the second pipe body, the second protruding portion and the spiral protruding portion, the first protruding portion is provided with the water outlet, the second protruding portion is provided with the first water inlet, and the protruding portion is located between the first protruding portion and the second protruding portion and is communicated with the first protruding portion and the second protruding portion.

9. A liquid heater as claimed in claim 1, wherein: the second water inlet is connected with a water inlet pipe body.

10. A liquid heater as claimed in claim 1, wherein: the left end and the right end of the sleeve are provided with necking parts which are in sealing connection with the water pipe or the electric heating pipe, and the water outlet and the first water inlet are positioned between the necking parts.