CN107741088B

CN107741088B - Heating device

Info

Publication number: CN107741088B
Application number: CN201710964490.0A
Authority: CN
Inventors: 廖德胜
Original assignee: Shanghai Kohler Electronics Ltd
Current assignee: Shanghai Kohler Electronics Ltd
Priority date: 2017-10-17
Filing date: 2017-10-17
Publication date: 2020-01-03
Anticipated expiration: 2037-10-17
Also published as: CN107741088A

Abstract

The invention discloses a heater, which comprises a shell and a heating pipe arranged in the shell; a heating pipe water inlet is formed in one end of the heating pipe, and a heating pipe water outlet is formed in the pipe wall of the heating pipe; a water flowing channel is formed between the pipe wall of the heating pipe and the shell, and a shell water outlet is formed in the shell; a descaling element is arranged on the pipe wall of the heating pipe; a heating pipe opening is formed in one end, opposite to the water inlet of the heating pipe, of the heating pipe; an elastic element is arranged on the opening of the heating pipe; the elastic element is sealed on a port of the water flow channel close to the opening side of the heating pipe, and the descaling element is connected with the elastic element. The heater provided by the invention can realize automatic descaling, thereby avoiding water channels from being blocked by scale, improving the performance of the heater, preventing structural components such as a heating pipe, a shell and the like from being burst by ice in a cold-temperature environment, and expanding the application range.

Description

Heating device

Technical Field

The invention relates to the technical field of water heating equipment, in particular to a heater.

Background

A heater is a device for heating water, and generally includes a housing and a heating pipe disposed in the housing.

In the existing direct-heating heater, water flow quickly passes through the heating pipe and a cavity or a water flow channel between the heating pipe and the shell, the water flow is heated by the heating pipe, and after the direct-heating heater is used for a long time, scale can be accumulated on the outer surface of the heating pipe to influence the water temperature performance and block a water channel, so that the performance of the heater is influenced.

In view of the above, it is necessary to provide a heater capable of automatically removing scale.

Disclosure of Invention

The invention aims to provide a heater capable of automatically descaling.

The technical scheme of the invention provides a heater, which comprises a shell and a heating pipe arranged in the shell;

a heating pipe water inlet is formed in one end of the heating pipe, and a heating pipe water outlet is formed in the pipe wall of the heating pipe;

a water flowing channel is formed between the pipe wall of the heating pipe and the shell, and a shell water outlet is formed in the shell;

a descaling element is arranged on the pipe wall of the heating pipe;

a heating pipe opening is formed in one end, opposite to the water inlet of the heating pipe, of the heating pipe;

an elastic element for driving the descaling element to reciprocate along the pipe wall is arranged at the opening end of the heating pipe;

the elastic element is sealed on a port of the water flow channel close to the opening side of the heating pipe, and the descaling element is connected with the elastic element.

Furthermore, a guide seat is arranged in the shell and connected with the elastic element;

a guide post is arranged on one side of the guide seat, which is far away from the elastic element;

a guide hole is formed in one side, close to the guide seat, of the shell;

the guide post is slidably disposed in the guide hole.

Further, a return spring for driving the elastic element to return is arranged on the guide post.

Further, the elastic element is a rubber coating.

Further, the descaling element is a spring, and the spring is sleeved on the pipe wall of the heating pipe.

Furthermore, the elastic element is further connected with a spring fixing seat, a first clamping hole is formed in the spring fixing seat, and the end portion of the spring is inserted into the first clamping hole.

Furthermore, at least one spring pull rod is arranged on the spring, a pull rod fixing seat is arranged on the elastic element, and the spring pull rod is connected with the pull rod fixing seat;

the spring is formed by connecting a plurality of spring rings in sequence;

the spring pull rod is provided with a plurality of pull rod clamping grooves, and each spring ring is correspondingly embedded into one pull rod clamping groove.

Furthermore, the spring is provided with two spring pull rods, and the two spring pull rods are symmetrically arranged on two sides of the spring.

Furthermore, a clamping end is arranged at the end part, close to the pull rod fixing seat, of the spring pull rod;

the clamping end is vertical to the spring pull rod;

the pull rod fixing seat is provided with a second clamping hole, and the clamping end is inserted into the second clamping hole.

Furthermore, a fixing seat clamping groove is formed in the surface of the pull rod fixing seat, and at least part of the spring pull rod is located in the fixing seat clamping groove.

By adopting the technical scheme, the method has the following beneficial effects:

the descaling element is arranged on the surface of the heating pipe, the elastic element is hermetically connected to the opening of the heating pipe, and one end of the descaling element is connected with the elastic element. When water enters the heating pipe, the elastic element deforms under the action of the water pressure of the internal water flow, so that the descaling element is driven to move along the surface of the heating pipe towards one end far away from the water inlet of the heating pipe, and descaling is realized; when the water supply is stopped, the elastic element resets because the water pressure of the internal water flow disappears, and then the descaling element is driven to move towards one end of the water inlet of the heating pipe, so that descaling is realized, the water channel can be prevented from being blocked by scale, and the performance of the heater is improved.

In addition, due to the elasticity of the elastic element, the expansion of the heater caused by freezing of residual water in the heater in a cold-warm environment can be absorbed, so that the heating pipe, the shell and other related structural components can be prevented from being broken due to the expansion of ice in the heating pipe, the shell and other related structural components.

Drawings

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

FIG. 2 is a schematic view of the descaling element in the heater of FIG. 1 moving along arrow A;

FIG. 3 is a schematic view of the spring, the spring holder, the elastic member and the guide holder assembled together;

FIG. 4 is an exploded view of FIG. 3;

FIG. 5 is a schematic structural diagram of a heater according to a second embodiment of the present invention;

FIG. 6 is a schematic view of the descaling element in the heater of FIG. 2 moving along arrow B;

FIG. 7 is a schematic view of a spring, a spring pull rod, a pull rod fixing seat, an elastic element and a guide seat assembled together;

fig. 8 is an exploded view of fig. 7.

Detailed Description

The following further describes embodiments of the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals. It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.

As shown in fig. 1-2 and 5-6, the heater provided by the embodiment of the present invention includes a housing 1 and a heating pipe 2 disposed in the housing 1.

One end of the heating pipe 2 is provided with a heating pipe water inlet 21, and the pipe wall of the heating pipe 2 is provided with a heating pipe water outlet 23.

A water flowing channel 11 is formed between the pipe wall of the heating pipe 2 and the shell 1, and a shell water outlet 13 is arranged on the shell 1.

Wherein, a descaling element 3 is arranged on the pipe wall of the heating pipe 2. A heating pipe opening 22 is arranged at one end of the heating pipe 2 opposite to the heating pipe water inlet 21, and an elastic element 4 for driving the descaling element 3 to reciprocate along the pipe wall is arranged at the end of the heating pipe opening 22.

The elastic element 4 is sealed at the end of the flowing water channel 11 close to the heating pipe opening 22 side, and the descaling element 3 is connected with the elastic element 4.

The descaling element 3 in the present invention is any element that can move on the wall of the heating pipe 2 to remove scale. The elastic element 4 in the invention is any element with elastic deformation capability which can deform under the action of water pressure to drive the descaling element 3 to move.

The heater is provided with a heating tube 2 inside a housing 1, the heating tube 2 preferably being a ceramic tube.

A water passage 11 is formed between the heating pipe 2 and the housing 1, and a housing water outlet 13 is formed on the housing 1 for discharging heated water.

A descaling element 3 is sleeved on the heating pipe 2. One end of the heating pipe 2 is provided with a heating pipe water inlet 21, the other end of the heating pipe 2 is provided with a heating pipe opening 22, a heating pipe water outlet 23 is arranged on the pipe wall of the heating pipe 2, and the heating pipe water outlet 23 can be a gap between the heating pipe and the elastic element 4. An elastic member 4 is disposed at the heating pipe opening 22 end of the heating pipe 2, and the elastic member 4 seals the end of the water flow passage 11 on the side close to the heating pipe opening 22, thereby sealing the rear end of the water flow passage 11 and the rear end of the heating pipe 2. The descaling element 3 is assembled with the elastic element 4.

The water flow direction of the heater 2 is: water enters the heating pipe 2 through the heating pipe water inlet 21, then enters the water flowing channel 11 through the heating pipe water outlet 23, and finally is discharged through the shell water outlet 13.

The heating pipe 2 heats the water while the water flows through the inside of the heating pipe 2 and in the water flow passage 11.

When water enters the heating pipe 2 through the heating pipe water inlet 21, pressure is applied to the elastic element 4 at the end of the heating pipe opening 22, and the elastic element 4 deforms convexly towards the direction away from the heating pipe water inlet 21. Thereby driving the descaling element 3 to move on the pipe wall of the heating pipe 2 towards the direction far away from the water inlet 21 of the heating pipe, and playing a role of removing scale on the pipe wall. As shown in fig. 2, the descaling element 3 is moved according to arrow a, and as shown in fig. 6, the descaling element 3 is moved according to arrow B.

When the water supply is stopped, the elastic element 4 resets by the self deformation capability and the thrust of the reset spring, drives the descaling element 3 to move and reset on the pipe wall, and plays a role in removing scale on the pipe wall.

In addition, because of the elasticity of the elastic element 4, the expansion of the heater caused by the icing of the residual water in the heater in a cold and warm environment can be absorbed, so that the cracking of other structural components such as a heating pipe, a shell and the like caused by the expansion of the ice in the heater can be prevented.

Preferably, as shown in fig. 1, 3-4, 5 and 7-8, a guide seat 5 is further provided in the housing 1, the guide seat 5 being connected to the elastic element 4.

The guide base 5 is provided with a guide post 51 at a side far from the elastic element 4, the housing 1 is provided with a guide hole 12 at a side near the guide base 5, and the guide post 51 is slidably disposed in the guide hole 12 to provide a guiding function for the deformation and extension of the elastic element 4, so that the elastic element drives the descaling element 3 to move only along the axial direction of the heating pipe 2.

Preferably, as shown in fig. 1 and 5, a return spring 6 for driving the elastic element 4 to return is provided on the guide post 51.

The return spring 6 is a compression spring, which is disposed on the guide post 51, and one end thereof is compressed on the guide holder 5, and the other end thereof is compressed inside the rear end cap 14 along the hole outer wall of the guide hole 12.

The guide hole 12 is provided on the rear cover 14.

The return spring 6 serves two purposes:

the first aspect functions as follows: the elastic element 4 is assisted to reset, the deformation amplitude of the elastic element 4 during resetting is reduced, the fatigue of the elastic element 4 is reduced, and the service life is prolonged.

The second aspect functions as follows: when water enters the heating pipe 2, if the water flow is too large or too fast, impact may be caused to the elastic element, so that the elastic element 4 is large in deformation amplitude, and the descaling element 3 is driven to rapidly and greatly move on the pipe wall, thereby easily damaging the pipe wall.

Through setting up reset spring 6, can offset the impact force of water for elastic element 4 keeps the deformation of slow deformation and less range, does benefit to the performance of maintaining the heater.

The elastic member 4 in the present invention may be a rubber film, or may be another type of rubber film.

Preferably, as shown in fig. 3-4 and fig. 7-8, the descaling element 3 is a spring 31, and the spring 31 is sleeved on the wall of the heating tube 2.

The spring 31 is formed by a plurality of spring coils 32 connected in series.

The spring 31 is sleeved on the heating pipe 2, so that scale on the pipe wall can be removed through moving the spring rings 32.

Meanwhile, due to the structural characteristics of the spring ring 32, water flow in the water flow channel 11 can rotate and advance in a spiral manner, which is beneficial to the contact between water and the surface of the heating pipe 2, and improves the heating effect.

Preferably, as shown in fig. 1 and fig. 3-4, the elastic element 4 is further connected to a spring fixing seat 7, the spring fixing seat 7 is provided with a first clamping hole 71, and the end of the spring 31 is inserted into the first clamping hole 71, so that the assembly is convenient, and the structural stability between the two is improved.

Specifically, the spring fixing seat 7, the elastic element 4 and the guide seat 5 are fastened together by screws.

Preferably, as shown in fig. 5 and fig. 7-8, at least one spring pull rod 9 is further disposed on the spring 31, a pull rod fixing seat 8 is further disposed on the elastic element 4, and the spring pull rod 9 is connected to the pull rod fixing seat 8.

The spring 31 is formed by connecting a plurality of spring rings 32 in sequence, a plurality of pull rod clamping grooves 91 are arranged on the spring pull rod 9, and each spring ring 32 is correspondingly embedded in one pull rod clamping groove 91.

During assembly, the spring pull rod 9 is fixedly connected with the pull rod fixing seat 8, and the pull rod fixing seat 8, the elastic element 4 and the guide seat 5 are fastened together through screws.

Through set up pull rod draw-in groove 91 on spring pull rod 9, all imbed every spring coil 32 in a pull rod draw-in groove 91, drive the integrative synchronous motion of all spring coils 32 through spring pull rod 9 to realize spring 9's bulk movement, avoided the front and back end of spring 31 because of the inconsistent problem of atress problem removal range.

The distance between two adjacent tie rod slots 91 and the distance between two adjacent spring rings 32 ensure that each spring ring 32 is embedded in one tie rod slot 91.

Preferably, two spring pull rods 9 are arranged on the spring 31, and the two spring pull rods 9 are symmetrically arranged on two sides of the spring 31, so that the effect of pulling the spring 31 to move integrally is improved.

Preferably, as shown in fig. 8, a clamping end 92 is disposed on an end portion of the spring pull rod 9 close to the pull rod fixing seat 8, and an extending direction of the clamping end 92 is perpendicular to an extending direction of the spring pull rod 9.

Be provided with second joint hole 81 on pull rod fixing base 8, joint end 92 inserts in second joint hole 81, convenient equipment to structural stability between the two has been improved.

Preferably, as shown in fig. 8, a fixing seat slot 82 is disposed on the surface of the pull rod fixing seat 8, wherein the second engaging hole 81 is located in the fixing seat slot 82, and during assembly, at least a portion of the spring pull rod 9 is located in the fixing seat slot 82, so as to further improve the degree of connection between the two.

Therefore, the heater provided by the invention can realize automatic scale removal, so that a water channel can be blocked by scale, the performance of the heater is improved, a heating pipe can be prevented from being burst by ice in a cold temperature environment, and the application range is expanded.

According to the needs, the above technical schemes can be combined to achieve the best technical effect.

The foregoing is considered as illustrative only of the principles and preferred embodiments of the invention. It should be noted that, for those skilled in the art, several other modifications can be made on the basis of the principle of the present invention, and the protection scope of the present invention should be regarded.

Claims

1. A heater comprises a shell and a heating pipe arranged in the shell;

the device is characterized in that a descaling element is arranged on the pipe wall of the heating pipe;

2. The heater of claim 1, wherein a guide seat is further provided within the housing, the guide seat being connected to the resilient element;

a guide hole is formed in one side, close to the guide seat, of the shell;

the guide post is slidably disposed in the guide hole.

3. The heater of claim 2, wherein a return spring is provided on the guide post for urging the resilient member to return.

4. A heater according to any of claims 1-3, wherein the resilient member is a rubber membrane.

5. The heater of any one of claims 1-3, wherein the descaling element is a spring that is sleeved on the tube wall of the heating tube.

6. The heater of claim 5, wherein a spring fixing seat is further connected to the elastic element, a first clamping hole is formed in the spring fixing seat, and an end of the spring is inserted into the first clamping hole.

7. The heater of claim 5, wherein at least one spring pull rod is further arranged on the spring, a pull rod fixing seat is further arranged on the elastic element, and the spring pull rod is connected with the pull rod fixing seat;

the spring is formed by connecting a plurality of spring rings in sequence;

8. The heater of claim 7, wherein two of said spring pull rods are disposed on said spring, said two spring pull rods being symmetrically disposed on opposite sides of said spring.

9. The heater of claim 7, wherein a snap-in end is provided on the end of the spring pull rod adjacent to the pull rod holder;

the clamping end is vertical to the spring pull rod;

10. The heater of claim 9, wherein a holder detent is provided on a surface of the tension rod holder, and the spring tension rod is at least partially positioned within the holder detent.