阅读说明：本技术 发热装置及热水器 (Heating device and water heater ) 是由 汤亮 金胜昔 张瑞 张志华 黄宝明 赵勇 于 2021-07-14 设计创作，主要内容包括：本发明公开了一种发热装置,包括可变形的壳体,壳体内设置发热管,壳体内注入传热介质,发热管加热传热介质,传热介质受热膨胀使得壳体发生形变,以使附着壳体表面的水垢脱落。还公开了一种热水器,包括内胆,内胆上设置有如以上所述的发热装置。本发明提供的发热装置及热水器,在发热管加热时使液体介质受热膨胀,波纹管伸展,增大波纹管的表面积,从而使波纹管外壁上的水垢脱落。(The invention discloses a heating device, which comprises a deformable shell, wherein a heating pipe is arranged in the shell, a heat transfer medium is injected into the shell, the heating pipe heats the heat transfer medium, and the heat transfer medium expands when heated to deform the shell so as to enable scale attached to the surface of the shell to fall off. The water heater comprises an inner container, and the heating device is arranged on the inner container. According to the heating device and the water heater, when the heating pipe is heated, the liquid medium is heated and expanded, the corrugated pipe is stretched, and the surface area of the corrugated pipe is increased, so that water scales on the outer wall of the corrugated pipe fall off.)

1. The heating device is characterized by comprising a deformable shell, wherein a heating pipe is arranged in the shell, heat transfer medium is injected into the shell, the heating pipe heats the heat transfer medium, and the heat transfer medium is heated and expanded to deform the shell so that scale attached to the surface of the shell falls off.

2. The heat-generating device of claim 1, wherein the deformed housing is a bellows.

3. The heating device as claimed in claim 2, wherein the bottom surface of the corrugated tube is provided with a fixing seat, the fixing seat is provided with a fixing hole, and the heating tube is hermetically fixed on the fixing seat through a screw.

4. The heat generating device as claimed in claim 2, wherein the heat generating tube and the bellows tube are made of a metal material.

5. The heat-generating device of claim 1, wherein the deformable housing is made of a copper material.

6. The heating device according to claim 1, further comprising a storage container, wherein the storage container is communicated with the housing through a water pump, the water pump pumps the liquid medium in the storage container into the housing or pumps the heat transfer medium in the housing into the storage container, so as to control the expansion and contraction of the housing to remove the scale attached to the outer wall of the housing.

7. The heat-generating device according to claim 1, wherein a temperature sensor is provided in the housing to detect the temperature of the heat transfer medium.

8. The heat-generating device according to claim 1, wherein the heat transfer medium is a liquid medium.

9. The heat-generating device according to claim 8, wherein the liquid medium is pure water.

10. A water heater, characterized by comprising an inner container, wherein the heating device as claimed in any one of claims 1-9 is arranged in the inner container.

Technical Field

The invention belongs to the technical field of household appliances, and particularly relates to a heating device and a water heater.

Background

The water heater is used as a common household appliance, and a certain amount of tap water is stored in the inner container in the use process. Since tap water contains ions such as calcium, magnesium, and iron, the ions are likely to form insoluble substances with anions in the tap water in the inner container, and further precipitate to form scale. In addition, impurities such as colloids in water and rust generated in the inner container accelerate the production of scale. The insoluble substances and the scale are adhered to the inner container after being formed, so that the water quality is influenced, the pipeline is blocked, the insoluble substances and the scale are adhered to the heating pipe of the inner container, the heating effect of the heating pipe is further negatively influenced, the pitting corrosion is easily caused, and the water heater is further easily subjected to faults such as pipe explosion, water leakage and the like. The safety of the water heater is guaranteed, the service life of the electric water heater is prolonged, and the problem to be solved urgently by the water heater is solved.

In the current method for cleaning and descaling the inner container of the water heater, the inner container is usually detached and then is washed by tap water. However, this method is time consuming and laborious and the cleaning effect is poor. Some manufacturers also design and install a blowoff valve in the inner container of the water heater, so as to avoid the disassembly process of the inner container, directly utilize water flow to wash the scale in the inner container, and discharge the sewage containing the scale out of the inner container through the blowoff valve. However, such designs have difficulty achieving thorough cleaning of the scale in the inner bladder due to restriction of the drain valve position and caliber.

Therefore, it is desirable to design a heating device and a water heater to solve the above-mentioned problems that the heating tube is unevenly cooled due to scaling outside the heating tube, which easily causes the water heater to have faults such as tube explosion and water leakage.

Disclosure of Invention

The invention provides a heating device and a water heater, and aims to solve the problem that scale attached to the outer wall of a heating tube in the water heater cannot be removed, so that the heat of the heating tube cannot be conducted into water due to the fact that the heat of the heating tube is attached to the water, the temperature of the heating tube is abnormally increased, and then the tube is exploded.

In order to achieve the purpose, the specific technical scheme of the heating device and the water heater is as follows:

the utility model provides a heating device, includes deformable casing, sets up the heating tube in the casing, pours into heat transfer medium into in the casing, and the heating tube heating heat transfer medium, and heat transfer medium is heated the inflation and is makeed the casing to take place deformation to the casing atress is flexible so that the incrustation scale that adheres to the casing surface drops.

Furthermore, the deformed shell is a corrugated pipe, a closed cavity is formed in the corrugated pipe, and a liquid medium is injected into the closed cavity, so that the liquid medium is heated and expanded to increase the surface area of the shell.

Furthermore, the bottom surface of bellows sets up the fixing base, has seted up the fixed orifices on the fixing base, fixes the heating tube seal on the fixing base through the screw.

Further, the heat generating tube and the corrugated tube are made of a metal material.

Further, the deformable housing is made of a copper material.

Further, still include storage container, storage container and casing are linked together through the water pump, and the liquid medium that the water pump was in with storage container is taken out to the casing or is taken out the liquid medium in the casing to storage container in to the flexible incrustation scale that makes the casing outer wall adhere that drops of control casing.

Further, a temperature sensor is arranged in the shell and used for detecting the temperature of the heat transfer medium.

Further, the heat transfer medium is a liquid medium.

Further, the liquid medium is pure water.

A water heater comprises an inner container, wherein the heating device is arranged in the inner container.

The heating device and the water heater provided by the invention have the following advantages:

(1) the liquid medium is heated to expand, so that the corrugated pipe is expanded, and scale attached to the outside falls off, thereby playing a role in protecting the heating pipe;

(2) insulating liquid medium is injected, and when the heating tube is exploded, the water heater can be prevented from electric leakage;

(3) monitoring the temperature rise condition of the liquid medium by using a temperature sensor, monitoring the current temperature rise rate of the liquid medium by using a controller, cutting off a power supply when the temperature is abnormal, and timely alarming to prompt a user;

(4) the corrugated pipe is arranged outside the heating pipe, the heating expandable liquid medium is filled inside the heating pipe, and the water heater indirectly heats water in the inner container through the liquid medium.

Drawings

Fig. 1 is a schematic structural diagram of a heat generating device according to the present invention.

The notation in the figure is:

1. a housing; 2. a liquid medium; 3. a heat generating tube; 4. a fixed seat; 5. a temperature sensor.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The heating apparatus and the water heater of the present invention will be described with reference to fig. 1.

As shown in fig. 1, the water heater provided by the invention comprises an inner container, a heating tube 3 is arranged in the inner container, a water inlet tube and a water outlet tube are arranged on the inner container, an external water source flows in from the water inlet tube, the heating tube 3 heats water in the inner container, and the heated water flows out from the water outlet tube, so that a user can use the water heater.

In the prior art, the heating tube 3 is generally arranged in the inner container, and the heating tube 3 is directly contacted with water in the inner container, so that the water in the inner container is heated. However, since tap water contains ions such as calcium, magnesium, and iron, these ions are likely to form insoluble substances with anions in the tap water in the inner container, and further precipitate to form scale. In addition, impurities such as colloids in water and rust generated in the inner container accelerate the production of scale. The insoluble substances and the scale are adhered to the inner container after being formed, so that the water quality is influenced, the pipeline is blocked, the insoluble substances and the scale are adhered to the heating pipe of the inner container, the heating effect of the heating pipe is further negatively influenced, the pitting corrosion is easily caused, and the water heater is further easily subjected to faults such as pipe explosion, water leakage and the like.

Specifically, the water heater can be an electric water heater, that is, a heating device is arranged in an inner container of the water heater to convert electric energy into heat energy, so that water in the inner container is heated. The water inlet tube of the water heater may be in communication with a water source to introduce water (particularly cold water) from the water source into the liner. The water outlet pipe of the water heater can be communicated with the outside, so that hot water can be discharged after the heating device heats the water. In one embodiment, the water inlet pipe of the water heater may be located adjacent to the heat generating device and the water outlet pipe of the water heater is located remote from the heat generating device in order to heat water entering the bladder of the water heater. Of course, other positional relationships of the water inlet pipe, the water outlet pipe and the heat generating device are also possible. In other embodiments, the water heater is not necessarily limited to an electric water heater, and may be a gas water heater, a solar water heater, or other similar water heaters.

Further, set up the mount pad on the inner wall of water heater, seted up the through-hole on the mount pad, will generate heat the device through the screw and fix on the mount pad. Generally, the shape of the water heater may be a cylinder, and the length of the water heater in the length direction is greater than the width thereof, so that the heating device is disposed on the side wall of the water heater in the width direction, and the heating device is horizontally disposed, thereby heating the water in the inner container more uniformly and rapidly.

In the present embodiment, the heat generating device includes a housing 1, the housing 1 is provided as a deformable housing 1, and the deformable housing 1 is extended or shortened in a certain direction, so that the surface area of the housing 1 can be changed. Specifically, in the horizontal direction, the housing 1 may be extended or shortened to increase or decrease the surface area of the housing 1, thereby achieving deformation of the housing 1 in the horizontal direction thereof.

Further, the deformable housing 1 may be specifically configured such that the housing deforms in a length direction thereof, for example, the housing is in the form of a pipe; the deformable shell 1 may be made of a thin-walled metal material, and the shape of the deformable shell 1 is not particularly limited, and may be square, circular, long-strip, oval, or the like.

Preferably, the housing 1 is made of a metal material, the deformed housing 1 is made of a metal material with good thermal conductivity, and the metal material with good electrical conductivity has a certain ductility, so that it can be extended and contracted in a certain direction. In particular, the case 1 may be made of a copper material, and when the internal heat transfer medium expands due to heat, the case 1 expands under the internal pressure, and when the internal heat transfer medium decreases in temperature, the case 1 contracts.

Specifically, the heating device arranged in the inner container is directly contacted with water in the inner container, so that scale can be attached to the outer wall of the shell 1, and when the deformed shell 1 stretches in the horizontal direction, the scale attached to the outer wall of the shell 1 falls off, so that the descaling effect is achieved.

Further, the device that generates heat can the indirect heating water in the inner bag, and the casing 1 inside of the device that generates heat sets up heating tube 3, and heating tube 3 is fixed to be set up inside casing 1, and heating tube 3 can further the indirect water that heats 1 external contact of casing to the realization heats the water in the inner bag, makes it reach the heating effect the same with the water in the heating tube 3 direct heating inner bag among the prior art.

Preferably, the heating tube 3 is detachably connected with the casing 1, the bottom of the casing 1 is provided with the fixing seat 4, the fixing seat 4 and the casing 1 can be detachably fixed and can be integrally formed, and particularly, the fixing seat 4 and the casing 1 can be connected in a clamping manner, a sliding manner and other fixing manners, so that specific limitation is not required, and the casing 1 and the fixing seat 4 can be fixed.

Further, the fixing seat 4 is provided with a mounting hole, and the heating tube 3 is fixedly arranged on the fixing seat 4 through a screw. Specifically, the mounting holes on the fixing seat 4 are mainly matched with the shape of the heating tube 3. The heating tube 3 can be an L-shaped heating tube, a U-shaped heating tube, a W-shaped heating tube or a special-shaped heating tube, is not restricted by the form of the heating tube, can be applied to heating tubes of various forms, and only needs to be capable of arranging the heating tube 3 in the shell 1 when in application.

Specifically, the number and the shape of the mounting holes in the fixing base 4 are set according to different shapes of the heating tube 3, so long as the heating tube 3 can be hermetically fixed on the fixing base 4.

Preferably, the heating tube 3 is made of a metal material, the heating tube 3 made of the metal material has good thermal conductivity, and the heating tube 3 indirectly supplies heat to the water in the inner container through the liquid medium 2, so that the heating tube 3 with good thermal conductivity can quickly heat the water in the inner container to the temperature set by a user. When the heating tube 3 is electrified to be heated, the heat transfer medium in contact with the heating tube 3 expands by heat so as to expand and contract the housing 1.

Further, the heat transfer medium may be provided as the liquid medium 2, a gas medium, or a solid medium as long as the heat transfer medium can be expanded under heating.

Specifically, a liquid medium 2 is injected into the housing 1, and the liquid medium 2 expands when heated to deform the outer wall of the housing 1, so that the surface area of the outer wall of the housing 1 changes. The heating tube 3 provides heat for the liquid medium 2, and the heating tube 3 circular telegram converts the electric energy into heat energy, and the liquid medium 2 is heated the inflation and then makes the casing 1 flexible, and the flexible casing 1 of atress is in reciprocating motion for the incrustation scale attached to on the casing 1 outer wall drops, and then plays the effect of scale removal.

Preferably, the liquid medium 2 is an insulating liquid medium 2, and the heating tube 3 is made of a metal material, so that the non-conductive liquid medium 2 is used, and when the heating tube 3 is exploded, the electric water heater can be prevented from generating electric leakage. Insulating liquid medium 2 can set up to the pure water, and the electric conductivity of pure water is poor, and the pure water can take place the inflation under the condition of being heated, and liquid pure water is heated and can takes place the phase transition, and its liquid pure water converts gaseous water into for the pure water volume changes, consequently can be heated the inflation and make casing 1 flexible.

Further, the heating tube 3 electricity is connected with the controller, and the heating time of heating tube 3 is controlled to the controller, and after the controller received heating signal, and when monitoring abnormal state, heating tube 3 began to heat.

The controller provided in the above embodiment detects the abnormal state mainly by monitoring the temperature of the liquid medium 2. The shell 1 is also internally provided with a temperature sensor 5, the temperature sensor 5 is electrically connected with a controller, and the temperature sensor 5 detects the temperature of the liquid medium 2 in real time. By using the indirect heating method, the temperature of the liquid medium 2 rises uniformly, and the temperature sensor 5 can accurately monitor the temperature rise of the liquid medium 2, so that the controller can judge whether the current working state is normal. Specifically, the temperature sensor 5 feeds back the current temperature condition of the liquid medium 2, the controller receives the current temperature information, calculates the current temperature rise rate, and automatically controls the heating tube 3 to stop heating when the current temperature rise rate exceeds a set value.

The specific working principle of some embodiments provided by the invention is as follows: inside injection liquid medium 2 of casing 1 of deformation, heating tube 3 sets up in casing 1, and heating tube 3 and the contact of liquid medium 2, when the controller judges that current operating condition is normal, heating tube 3 begins to heat, and liquid medium 2 begins to be heated the inflation, and casing 1's outer wall atress extends, and the adnexed incrustation scale atress of casing 1 outer wall drops to play the mesh of the incrustation scale on the clean casing 1 outer wall.

Further, the controller may set a cleaning mode to control the heating and cooling of the heat generating tube 3 repeatedly, thereby repeating the expansion and contraction of the housing 1, thereby completing the cleaning of the scale on the housing 1. The temperature sensor 5 arranged in the corrugated pipe can monitor the temperature rise condition and the temperature of the medium in the shell 1, and cut off the power supply of the heating pipe 3 in time and prompt the user of the current abnormity when the temperature rises abnormally; and the user accessible uses clean mode, monitors the temperature situation of liquid medium 2, is in repeated extension and shrink process through controller control heating tube 3 to make bellows outside incrustation scale drop, play clean effect.

Specifically, the volume of the liquid medium 2 and the change amount of the surface area of the shell 1 after expansion and contraction are in positive correlation. An optimum degree of stretching, i.e. the amount of surface area change, can be experimentally tested to achieve different degrees of stretching in the actual heating situation after heating the liquid medium 2 by the size of the volume of the liquid medium 2.

In some embodiments provided by the invention, the liquid medium 2 is heated to expand, so that the corrugated pipe is expanded, and scale attached to the outside is removed, thereby protecting the heating pipe 3; the insulating liquid medium 2 is injected, and when the heating tube 3 is exploded, the electric water heater can be prevented from electric leakage; monitoring the temperature rise condition of the liquid medium 2 by using a temperature sensor 5, monitoring the current temperature rise rate of the liquid medium 2 by using a controller, cutting off a power supply when the temperature is abnormal, and timely alarming to prompt a user; the corrugated pipe is arranged outside the heating pipe 3, the heating expandable liquid medium 2 is filled inside the heating pipe, and the water heater indirectly heats water in the inner container through the liquid medium 2.

The heating device and the water heater of the present invention will be described in detail with reference to the following embodiments.

Example one

As shown in fig. 1, the water heater provided by this embodiment includes an inner container, and a heating device is disposed in the inner container to convert electric energy into heat energy, so as to heat water in the inner container. The water inlet tube of the water heater may be in communication with a water source to introduce water (particularly cold water) from the water source into the liner. The water outlet pipe of the water heater can be communicated with the outside, so that hot water can be discharged after the heating device heats the water. The side wall of the water heater is provided with a mounting seat, the mounting seat is provided with a through hole, and the heating device is fixed on the mounting seat through a screw.

In this embodiment, the heat generating device includes a bellows, and the bellows is a closed pipe. The bottom of the corrugated pipe is provided with a fixed disc, and the fixed disc is matched with the bottom of the heating pipe 3 in shape. The mounting holes are formed in the fixed disc, the number of the mounting holes is two, the heating tubes 3 are arranged into the U-shaped heating tubes 3, and the heating tubes 3 are connected with the bottom of the corrugated pipe in a sealing mode through the mounting holes, so that the closed environment of the corrugated pipe is achieved. The liquid medium 2 is injected into the sealed cavity, the heating tube 3 is electrified to heat, and the liquid medium 2 in the sealed cavity expands when heated to extend the outer wall of the shell 1, so that the contact area between the heating tube 3 and water is indirectly increased as a heat transfer medium, the heating speed of the water is increased, and the electric energy is saved.

Specifically, the corrugated pipe is made of a metal material, the deformed corrugated pipe is made of a metal material with good heat conduction, and the metal material with good electric conduction has certain ductility and can be stretched and contracted in a certain direction. In particular, the bellows may be made of a copper material, which expands under internal pressure when the internal liquid medium 2 expands due to heat, and contracts when the internal liquid medium 2 decreases in temperature.

Further, the device that generates heat can the indirect heating water in the inner bag, and the bellows inside of the device that generates heat sets up heating tube 3, and heating tube 3 is fixed to be set up inside casing 1, and heating tube 3 can further the indirect water that heats 1 outside contact of casing to the realization is to the heating of the water in the inner bag, makes it reach the heating effect the same with the water in the heating tube 3 direct heating inner bag among the prior art. Meanwhile, the surface area contacted with water is increased by the stretched corrugated pipe, the heat exchange efficiency of water is improved, the heating rate of water in the liner is increased, and the heating time is shortened.

Preferably, the heating tube 3 is made of a metal material, the heating tube 3 made of the metal material has good thermal conductivity, heat is supplied to the water in the inner container through the heating tube 3 indirectly through the liquid medium 2, and the liquid medium 2 is the insulating liquid medium 2. Therefore, the heating tube 3 with good thermal conductivity can quickly heat the water in the inner container to the temperature set by the user. When the heating tube 3 is electrified to be heated, the liquid medium 2 contacted with the heating tube 3 is heated to expand so as to expand and contract the shell 1.

Further, the heating tube 3 electricity is connected with the controller, and the heating time of heating tube 3 is controlled to the controller, and after the controller received heating signal, and when monitoring abnormal state, heating tube 3 began to heat. In the repeated deformation process of the corrugated pipe, the condensed scale can fall off from the outer wall of the corrugated pipe, so that the condition that the scale is attached to and solidified on the outer wall of the corrugated pipe can be avoided, the heat transfer performance of the corrugated pipe is ensured, and the damage caused by poor heat transfer of the heating pipe 3 is avoided.

Example two

The embodiment provides a water heater, includes the inner bag, sets up the device that generates heat in the inner bag to can be with electric energy conversion heat energy, thereby heat the water in the inner bag. The water inlet tube of the water heater may be in communication with a water source to introduce water (particularly cold water) from the water source into the liner. The water outlet pipe of the water heater can be communicated with the outside, so that hot water can be discharged after the heating device heats the water. The side wall of the water heater is provided with a mounting seat, the mounting seat is provided with a through hole, and the heating device is fixed on the mounting seat through a screw.

In this embodiment, the heat generating device includes a bellows, a storage container is disposed outside the bellows, and the storage container and the bellows are fixedly connected by a water pump.

Specifically, the water pump is connected with a water inlet end and a water outlet end, the water inlet end of the water pump is communicated with the storage container, and the water outlet end of the water pump is communicated with the closed cavity of the corrugated pipe. The storage vessel holds a liquid medium 2.

Further, the heating tube 3 electricity is connected with the controller, and the heating time of heating tube 3 is controlled to the controller, and after the controller received heating signal, and when monitoring abnormal state, heating tube 3 began to heat. In the repeated deformation process of the corrugated pipe, the condensed scale can fall off from the outer wall of the corrugated pipe, so that the condition that the scale is attached to and solidified on the outer wall of the corrugated pipe can be avoided, the heat transfer performance of the corrugated pipe is ensured, and the damage caused by poor heat transfer of the heating pipe 3 is avoided.

Specifically, when controller control heating tube 3 need heat, the water pump is taken out liquid medium 2 to the bellows in from storage container, according to the inflation degree of preset bellows, the volume of liquid medium 2 that injects into the bellows is then confirmed to the change of the surface area before and after bellows inflation promptly, injects into liquid medium 2 and finishes the back, forms airtight cavity in the bellows, and controller control heating tube 3 heats to will adhere to the incrustation scale that is on the bellows outer wall and drop.

Furthermore, in order to accelerate the scale fixed on the outer wall of the corrugated pipe, the corrugated pipe can be repeatedly heated for many times so as to frequently extend and contract the corrugated pipe, and the falling rate of the scale is accelerated. When the corrugated pipe is heated and expanded, the controller controls the heating pipe 3 to stop heating, at the moment, the liquid medium 2 in the corrugated pipe is pumped into the storage container by the water pump, the liquid medium 2 in the storage container is cooled, and the corrugated pipe is contracted to a normal state. The steps are repeated for many times, namely, the expansion and contraction frequency of the outer wall of the corrugated pipe is increased, the falling speed of the scale is increased, and the cleaning effect is achieved.

According to the water heater provided by the invention, when the heating pipe 3 is heated, the liquid medium 2 is heated and expanded, so that the corrugated pipe is expanded, the surface area of the corrugated pipe is increased, external scale is removed, the temperature rise condition of the heated medium is monitored by the temperature sensor 5 in the water heater, and the power supply is timely cut off when the temperature rise is abnormal, so that the heating pipe 3 is protected.

In addition, many modifications may be made to adapt a particular situation or material to the teachings of the invention without departing from the essential scope thereof. Therefore, it is intended that the invention not be limited to the particular embodiment disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.