Water injection electric heating device

Abstract

The application relates to the technical field of heating equipment, and discloses a water injection electric heating device which comprises a hot flow channel, a cold flow channel, a heating sheet, a water storage bucket and a humidifying bucket, the heating sheet is provided with a water flow channel, the hot flow channel and the cold flow channel are connected through a circulating pipe, the circulating pipe is provided with a heating assembly, the water storage bucket is connected with an overflow pipe and a water outlet pipe, the humidifying bucket is connected with a hot water pipe I, a cold water pipe I and a water supplement pipe, the hot water pipe I is connected with the hot flow channel, the cold water pipe I is connected with the cold flow channel, and the water supplement pipe, the water outlet pipe and the overflow pipe are connected through a three-way joint. The water injection electric heating device can humidify the surrounding environment, greatly improves the use comfort, guarantees the health of users, can automatically supplement water and automatically stop heating when the water level is too low, guarantees the use convenience and safety, adopts a grouping and sectional heating mode, can reduce noise, and realizes quiet heating.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of heating equipment, in particular to a water injection electric heating device. BACKGROUND

[0002] In cold winter, people usually take the help of heating equipment to keep warm, among which electric heating products are widely favored by users due to their environmental protection and convenient use.

[0003] Most of the existing electric heating products adopt electric heating conductor or medium temperature difference convection circulation heating, which can cause indoor air dry in the use process, especially in dry northern areas, which can increase the dryness of the environment, greatly reduce the use comfort and affect the health of the user, in addition, after the end of winter, the heating equipment will be idle due to not being used, which occupies space and causes waste. SUMMARY

[0004] In view of the technical problems existing in the prior art, the present application provides a water injection electric heating device.

[0005] To achieve the above purpose, the present application provides the following technical scheme: a water injection electric heating device, comprising a hot flow channel, a cold flow channel and a heating sheet, further comprising a water storage bucket and a humidifying bucket, the heating sheet is provided with a water flow channel, the water flow channel is communicated with the hot flow channel and the cold flow channel, the hot flow channel and the cold flow channel are connected through a circulating pipe, the circulating pipe is provided with a heating assembly, the water storage bucket is connected with an overflow pipe and a water outlet pipe, the humidifying bucket is connected with a hot water pipe one, a cold water pipe one and a water supplement pipe, the hot water pipe one is connected with the hot flow channel, the cold water pipe one is connected with the cold flow channel, and the water supplement pipe, the water outlet pipe and the overflow pipe are connected through a three-way joint.

[0006] The water in the heating sheet enters the circulating pipe through the cold flow channel and is heated by the heating assembly, and the heated hot water enters the heating sheet again through the hot flow channel, and the heating sheet dissipates the heat of the hot water to the surrounding, so as to realize heating. The hot flow channel is located above the heating sheet, and the cold flow channel is located below the heating sheet. After the hot water enters the heating sheet, it is located above the heating sheet due to the action of gravity, and sinks after cooling for a period of time and enters the circulating pipe through the bottom cold flow channel to be heated and then enters the heating sheet again through the hot flow channel, so as to realize self-circulation.

[0007] The humidifying bucket is connected with the hot flow channel through the hot water pipe one and connected with the cold flow channel through the cold water pipe one, so as to realize self-circulation. The water in the hot flow channel enters the humidifying bucket to generate hot air, so as to humidify the indoor environment, avoid the surrounding environment being too dry, improve the use comfort and be beneficial to the health of the user.

[0008] When the water level in the humidifying barrel is too low, the water pump is started, the water in the water storage barrel is pumped out through the three-way joint and enters the humidifying barrel from the water supplement pipe to supplement the water in the humidifying barrel. After the water supplement is completed, if the water level in the humidifying barrel is higher than the position of the pipe opening of the water supplement pipe, the excess water will flow back into the water storage barrel through the water supplement pipe, the three-way joint and the overflow pipe, so as to avoid the water level in the humidifying barrel being too high and causing leakage during use.

[0009] In addition, when the water temperature in the humidifying barrel rises and the liquid level rises, the water above the water supplement pipe can also flow into the water storage barrel from the water supplement pipe and the overflow pipe. The pipe diameter of the water supplement pipe and the pipe diameter of the water outlet pipe are both larger than the pipe diameter of the overflow pipe. When the water is supplemented to the humidifying barrel, part of the water pumped out from the water storage barrel will flow back to the water storage barrel through the overflow pipe. Since the pipe diameter of the overflow pipe is smaller than that of the water supplement pipe, it can be avoided that the water only flows back to the water storage barrel from the overflow pipe during water supplement without entering the humidifying barrel.

[0010] Preferably, the circulating pipe comprises a second hot water pipe connected with the hot flow channel, a second cold water pipe connected with the cold flow channel, and a heating pipe connected with the second hot water pipe and the second cold water pipe, and the heating assembly comprises a ceramic pipe arranged outside the heating pipe, an annular heating cavity is formed between the ceramic pipe and the heating pipe, a heating coil is wound on the ceramic pipe, and a water-permeable hole is arranged on the wall of the heating pipe.

[0011] The cold water in the circulating pipe enters the annular heating cavity through the water-permeable hole, the heating coil is electrified to generate electromagnetic eddy current, the heating pipe generates heat, and thus the water is heated and warmed, and the hot water rises into the hot flow channel.

[0012] Preferably, the heating coil on the ceramic pipe is provided with a plurality of sections.

[0013] In order to avoid noise, the device is provided with two groups of heating assemblies, each group of heating assemblies is correspondingly provided with a circulating pipe, and the heating coil in each group of heating assemblies is divided into two sections. This arrangement can obtain two heating bodies, thereby obtaining double hot water space, and each heating assembly includes two heating areas, which further enlarges the total heating area, thereby decomposing the heating temperature, each heating area provides 1 / 4 of the heat, thereby improving the flowability of cold and hot water, avoiding the extreme red-burning phenomenon on the surface of the heating pipe, realizing stable heating, not exceeding high temperature, avoiding the internal boiling water phenomenon, reducing noise, and achieving a silent heating mode.

[0014] Preferably, the second hot water pipe and the second cold water pipe are respectively connected with a connecting elbow, the two ends of the heating pipe are respectively threadedly connected with the two connecting elbows, the end of the connecting elbow is provided with a stop edge, and the connecting place of the connecting elbow and the heating pipe is sequentially provided with an elbow connecting rubber pad, a metal gasket and a ceramic pipe rubber pad.

[0015] The heating pipe, the hot water pipe two and the cold water pipe two are connected through the connecting elbow respectively, the heating pipe, the hot water pipe two and the cold water pipe two are connected, the ceramic pipe is clamped to realize the fixation of the ceramic pipe, the connecting rubber pad, the ceramic pipe rubber pad are connected through the elbow to realize the sealing, and water leakage is prevented. The setting can replace the heating pipe, avoids that the heating pipe is used for a long time, causes that scale is attached to the surface of the heating pipe, and the heating effect is not ideal, the heating efficiency is low and the like, thereby guaranteeing the heating effect, and reducing the energy consumption.

[0016] Preferably, the water storage bucket is provided with a water level monitoring assembly, the water level monitoring assembly comprises a guide rod vertically arranged in the water storage bucket, limit sheets one, two and three are sequentially arranged on the guide rod in the axial direction from top to bottom, a floating ball one is arranged between the limit sheet one and the limit sheet two, a floating ball two is arranged between the limit sheet two and the limit sheet three, and the floating ball one and the floating ball two are in sliding fit with the guide rod.

[0017] Preferably, a limit sheet four is arranged below the limit sheet three, and a floating ball three in sliding fit with the guide rod is arranged between the limit sheet three and the limit sheet four.

[0018] Preferably, the hot flow channel and the cold flow channel are fixed on the rectangular support, the warm heating sheet is vertically connected between the hot flow channel and the cold flow channel and located on the four sides of the rectangular support, and the table plate is detachably connected to the rectangular support.

[0019] Preferably, the humidifying cover plate arranged above the water storage bucket is further provided, and the humidifying cover plate is provided with a humidifying hole.

[0020] The application further comprises other components capable of enabling the water injection electric heating device to be normally used, which are all conventional technical means in the field. In addition, all the devices or components not defined in the application adopt conventional technical means in the field.

[0021] The application can humidify the surrounding environment while heating, greatly improves the use comfort, guarantees the health of the user, and can realize automatic water replenishment and automatic stop heating when the water level is too low, thereby guaranteeing the use convenience and safety; the grouping and segmented heating mode can reduce noise and realize silent heating. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is the front view of the embodiment.

[0023] Figure 2 It is the top view of the embodiment without the table plate.

[0024] Figure 3 It is the top view of the embodiment without the table plate and the humidifying cover plate.

[0025] Figure 4 It is the top view of the humidifying cover plate in the embodiment.

[0026] Figure 5 is the structural schematic diagram of the water storage barrel and humidification barrel in the embodiment.

[0027] Figure 6 is the structural schematic diagram of the circulating pipe and the heating fin in the embodiment.

[0028] Figure 7 is the internal structural schematic diagram of the circulating pipe in the embodiment.

[0029] In the figure: 1, hot flow channel; 2, cold flow channel; 3, heating fin; 4, water storage barrel; 5, humidification barrel; 6, water flow channel; 7, circulating pipe; 8, overflow pipe; 9, water outlet pipe; 10, hot water pipe I; 11, cold water pipe I; 12, water supplement pipe; 13, three-way joint; 14, hot water pipe II; 15, cold water pipe II; 16, heating pipe; 17, ceramic pipe; 18, heating coil; 19, water-permeable hole; 20, connecting elbow; 21, edge stopper; 22, elbow connecting rubber pad; 23, metal gasket; 24, ceramic pipe rubber pad; 25, guide rod; 26, limit piece I; 27, limit piece II; 28, limit piece III; 29, floating ball I; 30, floating ball II; 31, limit piece IV; 32, floating ball III; 33, rectangular support; 34, table plate; 35, connecting rod; 36, insertion slot; 37, humidification cover plate; 38, humidification hole; 39, support block; 40, fixing piece. DETAILED DESCRIPTION

[0030] The technical solutions of the present application will be described clearly and completely below in combination with the drawings. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0031] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms “center”, “upper”, “lower”, “left”, “right”, “vertical”, “horizontal”, “inner”, “outer” and the like are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms “first”, “second”, “third” are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0032] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through intermediate medium, or the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0033] Embodiment

[0034] Reference Figures 1-7 A water injection electric heating device, comprising a hot flow channel 1, a cold flow channel 2, a heating sheet 3, a water storage bucket 4 and a humidifying bucket 5, wherein the heating sheet 3 is provided with a water flow channel 6, the water flow channel 6 is communicated with the hot flow channel 1 and the cold flow channel 2, the hot flow channel 1 and the cold flow channel 2 are connected through a circulating pipe 7, the circulating pipe 7 is provided with a heating assembly, the water storage bucket 4 is connected with an overflow pipe 8 and a water outlet pipe 9, the humidifying bucket 5 is connected with a hot water pipe 10, a cold water pipe 11 and a water supplement pipe 12, the hot water pipe 10 is connected with the hot flow channel 1, the cold water pipe 11 is connected with the cold flow channel 2, the water supplement pipe 12, the water outlet pipe 9 and the overflow pipe 8 are connected through a three-way joint 13.

[0035] In the embodiment, the height of the pipe opening of the water supplement pipe 12 connected with the humidifying bucket 5 is higher than the height of the pipe opening of the hot water pipe 10, which is convenient for supplementing water from the water storage bucket 4 to the humidifying bucket 5 and avoiding the liquid level of the humidifying bucket 5 being too low to ensure the normal water circulation between the humidifying bucket and the heating sheet; the three-way joint is T-shaped, the water supplement pipe 12 and the water outlet pipe 9 are connected with the straight-through interfaces of the three-way joint respectively, the overflow pipe 8 is connected with the branch interface of the three-way joint, and the water outlet pipe 9 is provided with a water supplement pump; the water storage bucket 4 is connected with an external water source through a water filling pipe, and the water filling pipe is provided with a water filling pump for filling water into the water storage bucket 4; the hot water pipe 10 is located at the upper part of the humidifying bucket 5, and the cold water pipe 11 is located at the bottom of the humidifying bucket 5.

[0036] The water in the heating sheet 3 enters the circulating pipe 7 through the cold flow channel 2 and is heated by the heating assembly, the heated hot water enters the heating sheet 3 again through the hot flow channel 1, and the heating sheet 3 dissipates the heat of the hot water to the surrounding, thereby realizing heating. The hot flow channel 1 is located above the heating sheet 3, the cold flow channel 2 is located below the heating sheet 3, the hot water is located above the heating sheet after entering the heating sheet, and after cooling for a period of time, it sinks and enters the circulating pipe 7 through the bottom cold flow channel, and then enters the heating sheet 3 again through the hot flow channel after being heated, thereby realizing self-circulation.

[0037] The humidifying barrel 5 is connected with the hot flow channel 1 through the hot water pipe 1 and connected with the cold flow channel 2 through the cold water pipe 1, so that self-circulation can be realized. The water in the hot flow channel 1 generates hot air after entering the humidifying barrel 5, so that the indoor environment can be humidified, the surrounding environment can be prevented from being too dry, the use comfort is improved, and the user's health is beneficial.

[0038] During use, the water in the humidifying barrel 5 is consumed. When the liquid level of the humidifying barrel 5 is too low, the water in the water storage barrel 4 is pumped by the water adding pump and enters the humidifying barrel 5 from the water adding pipe 12 through the three-way joint to add water to the humidifying barrel 5. After the water adding is completed, if the liquid level of the humidifying barrel 5 is higher than the position of the pipe opening of the water adding pipe 12, the excess water will flow back into the water storage barrel 4 through the water adding pipe 12, the three-way joint and the overflow pipe 8 in turn, so that the liquid level in the humidifying barrel 5 is prevented from being too high and spilling during use.

[0039] In addition, when the water temperature in the humidifying barrel 5 rises and the liquid level rises, the water that is higher than the water adding pipe 12 can also flow into the water storage barrel 4 from the water adding pipe 12 and the overflow pipe 8. The pipe diameter of the water adding pipe 12 and the pipe diameter of the water outlet pipe 9 are both greater than the pipe diameter of the overflow pipe 8 (in this embodiment, the pipe diameter of the water adding pipe 12 and the pipe diameter of the water outlet pipe 9 are both 8 mm, and the pipe diameter of the overflow pipe 8 is 4 mm). When water is added to the humidifying barrel 5, the water pumped from the water storage barrel 4 will partially flow back into the water storage barrel 4 through the overflow pipe 8. Since the pipe diameter of the overflow pipe 8 is smaller than that of the water adding pipe 12, the water is prevented from flowing back into the water storage barrel 4 from the overflow pipe 8 only and not entering the humidifying barrel 5 during water adding.

[0040] The circulating pipe 7 comprises a hot water pipe 2 connected with the hot flow channel 1, a cold water pipe 3 connected with the cold flow channel 2 and a heating pipe 4 connected with the hot water pipe 2 and the cold water pipe 3. The heating assembly comprises a ceramic pipe 5 arranged outside the heating pipe 4, and a heating coil 6 wound on the ceramic pipe 5.

[0041] The heating pipe 4 is a metal pipe with heat conduction and magnetic conduction, and the heating coil 6 is a circular electromagnetic induction heating coil wound on the ceramic pipe 5. The ceramic pipe 5 has an insulation effect.

[0042] The cold water in the circulating pipe 7 enters the annular heating cavity through the water permeable hole 19. After the heating coil 6 is electrified, electromagnetic eddy current is generated, and the heating pipe 4 generates heat, so that the water is heated and warmed, and the hot water rises into the hot flow channel 1.

[0043] The heating coil 6 on the ceramic pipe 5 is provided with a plurality of sections.

[0044] The electromagnetic induction heating coil must have a specific number of winding turns. The heating tube 16 generates electromagnetic eddy current, which will quickly burn red. After the heating tube 16 generates heat, it will heat the surrounding water, which will generate countless small bubbles, commonly known as boiling water. For example, if a set of coils corresponds to a metal tube with a red-burning length of 25 cm, the water at this position will be close to 100℃, so the sound of boiling water will appear, which has a relatively large noise.

[0045] In order to avoid noise, the device is provided with two groups of heating components, each group of heating components is provided with a circulating pipe 7, and the heating coil 18 in each group of heating components is divided into two sections. This setting can obtain two heating bodies, thereby obtaining double hot water space, and each heating component includes two heating areas, which further enlarges the total heating area, thereby decomposing the heating temperature, each heating area provides 1 / 4 of the heat, thereby improving the flow of cold and hot water, avoiding the extreme red-burning phenomenon on the surface of the heating tube 16, realizing stable heating, not exceeding high temperature, and avoiding the boiling water phenomenon inside, reducing noise, and achieving a silent heating mode.

[0046] The water-permeable holes 19 on the heating tube 16 are irregularly distributed and are located at positions staggered with the heating coil 18 (in this embodiment, the water-permeable holes 19 are distributed between the two heating coils 18, above or below the heating coil 18). This setting can ensure that the heating coil 18 corresponds to the heating tube part with the largest heating area, thereby realizing rapid heating.

[0047] The hot water pipe two 14 and the cold water pipe two 15 are respectively connected with the connecting elbow 20, the two ends of the heating tube 16 are respectively screwed with the two connecting elbows 20, the end of the connecting elbow 20 is provided with a stop edge 21, and the connecting position of the connecting elbow 20 and the heating tube 16 is sequentially provided with an elbow connecting rubber pad 22, a metal gasket 23 and a ceramic tube rubber pad 24.

[0048] In this embodiment, the inner wall of the connecting elbow 20 is provided with an internal thread, the end of the heating tube 16 is provided with an external thread matched with the internal thread, and the two ends of the ceramic tube 17 are both provided with an opening.

[0049] The heating tube 16, the hot water pipe two 14 and the cold water pipe two 15 are connected through the connecting elbow 20. After the heating tube 16, the hot water pipe two 14 and the cold water pipe two 15 are connected, the ceramic tube 17 is clamped to realize the fixation of the ceramic tube 17, and the connecting position is sealed through the elbow connecting rubber pad and the ceramic tube rubber pad to prevent water leakage. This setting can replace the heating tube 16, avoid the situation that the heating effect is not ideal and the heating efficiency is low due to the attachment of scale on the surface of the heating tube 16 after long-term use, thereby ensuring the heating effect and reducing energy consumption.

[0050] The water storage bucket 4 is provided with a water level monitoring assembly, which comprises a guide rod 25 vertically arranged in the water storage bucket 4, and a limiting sheet one 26, a limiting sheet two 27 and a limiting sheet three 28 are sequentially arranged on the guide rod 25 in an axial direction from top to bottom.

[0051] A limiting sheet four 31 is arranged below the limiting sheet three 28, and a floating ball three 32 is arranged between the limiting sheet three 28 and the limiting sheet four 31 and is in sliding fit with the guide rod 25.

[0052] The floating ball one 29, the floating ball two 30 and the floating ball three are all provided with magnetic materials, the guide rod 25 is in airtight arrangement and is provided with a magnetic reed switch therein, the position of the limiting sheet one 26 is higher than the water replenishing pipe 12, the limiting sheet two 27 is located between the water replenishing pipe 12 and a hot water pipe one, and the position of the limiting sheet three is higher than the hot water pipe one; the floating ball one 29, the floating ball two 30 and the floating ball three rise or fall along with the liquid level in the humidifying bucket 5, the magnetic materials in the balls are close to the contact points of the magnetic reed switch, and an opening and closing action is generated to control or indicate the liquid level, so that the automatic opening and closing control of the water adding pump and the heating assembly is realized.

[0053] Specifically, when the liquid level in the humidifying bucket 5 falls to the limiting sheet three 28, the floating ball one 29 falls to the limiting sheet two 27, and the floating ball three falls to the limiting sheet three 28, a signal is generated by the magnetic materials, so that the water replenishing pump is started to add water into the humidifying bucket 5; when the liquid level in the humidifying bucket 5 rises to the limiting sheet one 26, the floating ball one 29 rises to the limiting sheet one 26, the floating ball two 30 rises to the limiting sheet two 27, a signal is generated by the magnetic materials, and the water replenishing pump is stopped to stop adding water into the humidifying bucket 5. This arrangement not only realizes the automatic water replenishment of the humidifying bucket 5, but also realizes that the water adding is started only when the liquid level in the humidifying bucket 5 falls to a specific liquid level (i.e. when the actual liquid level in the humidifying bucket 5 and the preset highest liquid level have a certain liquid level difference), so that the energy waste caused by the frequent starting of the water replenishing pump is avoided, and the service life of the water replenishing pump is prolonged.

[0054] When the liquid level in the humidifying bucket 5 falls to the limiting sheet four 31 due to the lack of water in the whole device, the floating ball three falls to the position of the limiting sheet four along with the liquid level, and a signal is generated by the magnetic materials, so that the heating assembly is stopped to avoid the damage of the equipment caused by the long-time heating when the water is consumed.

[0055] The embodiment further comprises a rectangular support 33, the hot flow channel 1 and the cold flow channel 2 are fixed on the rectangular support 33, the warm heating sheet 3 is vertically connected between the hot flow channel 1 and the cold flow channel 2 and is located on the four sides of the rectangular support 33, and a table plate 34 is detachably connected to the rectangular support 33.

[0056] In the embodiment, the rectangular support 33 is provided with legs at four corners, and the legs are provided with wheels for facilitating the movement of the device; the water storage barrel and the humidifying barrel are located in the rectangular support.

[0057] The table board is connected with connecting rods 35 at four corners, the connecting rods 35 are provided with insertion blocks, and the rectangular support 33 is provided with insertion slots 36 matched with the insertion blocks, so that the table board can be installed by inserting the insertion blocks into the insertion slots.

[0058] The size of the table board and the rectangular support 33 can be set arbitrarily according to the requirements of users, for example, the table board and the rectangular support 33 can be set as a square for a chess table, or can be set as a rectangle for a tea table.

[0059] The embodiment further comprises a humidifying cover plate 37 located above the water storage barrel 4, and the humidifying cover plate 37 is provided with humidifying holes 38.

[0060] The hot air in the water storage barrel 4 is emitted to the indoor environment through the humidifying holes. The humidifying cover plate 37 is located below the table board, and the washed clothes can be placed on the humidifying cover plate 37 for drying.

[0061] The four corners of the humidifying cover plate 37 are matched with the shape of the legs, the inner side of the legs is connected with support blocks 39 for supporting the humidifying cover plate 37, the top of the legs is connected with fixing pieces 40 for fixing the humidifying cover plate 37, the fixing pieces and the legs are oppositely provided with connecting holes, and the fixing pieces and the legs are connected through connecting screws in the connecting holes.

[0062] The above has described the embodiments of the application, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes are obvious to those skilled in the art without departing from the scope and spirit of the described embodiments.

Claims

1. A water injection electric heating device comprising a hot flow passage, a cold flow passage and a heating sheet, characterized in that: The water storage bucket is connected with an overflow pipe and a water outlet pipe, the humidifying bucket is connected with a hot water pipe I, a cold water pipe I and a water supplement pipe, the hot water pipe I is connected with the hot flow channel, the cold water pipe I is connected with the cold flow channel, and the water supplement pipe, the water outlet pipe and the overflow pipe are connected through a three-way joint; The height of the pipe opening of the water supplement pipe connected with the humidifying bucket is higher than the height of the pipe opening of the hot water pipe I; the three-way joint is T-shaped, the water supplement pipe and the water outlet pipe are connected with straight-through interfaces of the three-way joint respectively, the overflow pipe is connected with a branch interface of the three-way joint, and the water outlet pipe is provided with a water supplement pump; the water storage bucket is connected with an external water source through a water adding pipe, and the water adding pipe is provided with a water adding pump for adding water to the water storage bucket; the hot water pipe I is located at the upper portion of the humidifying bucket, the cold water pipe I is located at the bottom of the humidifying bucket, and the pipe diameter of the water supplement pipe and the pipe diameter of the water outlet pipe are both larger than the pipe diameter of the overflow pipe; The circulation pipe comprises a hot water pipe II connected with the hot flow channel, a cold water pipe II connected with the cold flow channel and a heating pipe connected with the hot water pipe II and the cold water pipe II, the heating assembly comprises a ceramic pipe arranged outside the heating pipe, an annular heating cavity is formed between the ceramic pipe and the heating pipe, the ceramic pipe is provided with a heating coil wound thereon, and the pipe wall of the heating pipe is provided with water-permeable holes; The heating assembly is provided with two groups, each group of the heating assembly is correspondingly provided with a circulation pipe, and the heating coil in each group of the heating assembly is divided into two sections, the water-permeable holes are arranged between the two sections of the heating coil, above the heating coil or below the heating coil; The humidifying bucket is provided with a water level monitoring assembly, the water level monitoring assembly comprises a guide rod vertically arranged in the humidifying bucket, limit sheets one, two and three are sequentially arranged on the guide rod in the axial direction from top to bottom, a floating ball one is arranged between the limit sheet one and the limit sheet two, a floating ball two is arranged between the limit sheet two and the limit sheet three, and the floating ball one and the floating ball two are in sliding fit with the guide rod; A limit sheet four is arranged below the limit sheet three, a floating ball three in sliding fit with the guide rod is arranged between the limit sheet three and the limit sheet four, the floating ball one, the floating ball two and the floating ball three are all provided with magnetic materials, the guide rod is in airtight arrangement and is provided with a magnetic reed switch in the guide rod, the position of the limit sheet one is higher than that of the water supplement pipe, the limit sheet two is located between the water supplement pipe and the hot water pipe I, and the position of the limit sheet three is higher than that of the hot water pipe I.

2. A water injection electric heating device according to claim 1, characterized in that: The hot water pipe II and the cold water pipe II are respectively connected with connecting elbows, the two ends of the heating pipe are threadedly connected with the two connecting elbows respectively, the end portion of the connecting elbow is provided with a stop edge, and the connecting elbow and the heating pipe are sequentially provided with an elbow connecting rubber pad, a metal gasket and a ceramic pipe rubber pad at the connecting position.

3. The water injection electric heating device according to claim 1, characterized in that: The hot flow channel and the cold flow channel are fixed on the rectangular support, the warm heating sheet is vertically connected between the hot flow channel and the cold flow channel and located on the four side faces of the rectangular support, and a table board is detachably connected to the rectangular support.

4. The water injection electric heating device according to claim 1, characterized in that: The humidifying cover plate is arranged above the water storage bucket, and the humidifying cover plate is provided with a humidifying hole.

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