Electric heating type humidifier with scale prevention and water level monitoring functions

Abstract

The utility model provides an electric heating type humidifier with an anti-scale water level monitoring function, a water tank comprises a water tank body and a steam pipeline, a heating chamber is arranged in the water tank body and used for heating a water body so as to generate steam, and the steam pipeline is used for outputting the steam outwards; the heating assembly is arranged in the heating chamber and comprises a plurality of stainless steel heating pipe fittings used for heating a water body to generate steam, the water level monitoring assembly comprises a first probe and a second probe, and the first probe and the second probe are arranged in a staggered mode and used for monitoring different liquid level height information of the water body; an isolation sleeve is arranged outside the first probe and the second probe in a sleeving mode, and a filter screen is arranged at the bottom of the isolation sleeve. According to the water level detection device, even if water scale existing in the humidifier generates foam in the water boiling process, the isolation sleeve can effectively isolate the foam from being in contact with the probe, so that the probe can accurately detect the height of the water level, and the monitoring precision of the water level detection device on the water level is greatly improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of steam humidification, and in particular relates to an electric heating humidifier with an anti-scaling water level monitoring function. Background Art

[0002] A humidifier is an electrical device specifically used to increase the humidity of the environment. Its working principle is generally to heat the water to boiling through a heating component to generate a large amount of steam, thereby achieving the effect of humidifying the external air.

[0003] Existing humidifiers generally use electrode heating. Electrode humidifiers use an electric current loop between an electrode rod and a water body. The electrode rod is energized and then the water is heated and boiled into water vapor with the help of the movement of ions in the water, thereby generating clean steam. However, electrode heating requires ensuring that there are a certain number of ions in the water body to achieve conductivity of the water body. Since the water body is rich in ions, scale is easily accumulated during the electrode heating process, which in turn affects the steam generation efficiency and quality of the humidifier.

[0004] At the same time, under the existing technology, since the scale in the water body will produce a large amount of foam on the surface of the water body during the boiling process of the water body, the probe that uses the conductivity of the water body to monitor the water level is easily affected by the water body foam, making the water level monitoring information inaccurate, affecting the accuracy of steam production, and even further damaging the humidifier. Utility Model Content

[0005] The utility model aims to provide an electric heating humidifier with an anti-scaling water level monitoring function, so as to solve the technical problems that the existing humidifiers are prone to scale generation and cannot realize high-precision monitoring of the water level.

[0006] In order to solve the above problems, the technical solution of the utility model is: an electric heating humidifier with anti-scaling water level monitoring function, comprising:

[0007] A water tank, the water tank comprising a water tank body and a steam pipe, the water tank body is provided with a heating chamber inside, the heating chamber is used to heat water to generate water vapor, the steam pipe is provided at the top of the water tank body and is sealed and connected with the heating chamber, and is used to output water vapor to the outside;

[0008] A heating assembly, the heating assembly is arranged inside the heating chamber, and includes a plurality of stainless steel heating pipes extending along the height direction of the heating chamber, the stainless steel heating pipes are at least partially immersed in the water inside the heating chamber, and are used to heat the water to generate water vapor;

[0009] A water level monitoring component, the water level monitoring component includes a first probe and a second probe, the first probe and the second probe are staggered along the height direction of the heating chamber, and are used to monitor different liquid level height information of the water body inside the heating chamber. The water level monitoring component also includes an isolation sleeve, the isolation sleeve is sleeved on the outside of the first probe and the second probe and extends to the bottom of the heating chamber along the height direction of the heating chamber, a filter is provided at the bottom of the isolation sleeve below the position of the bottom detection electrode of the first probe, and an air hole is provided at the top above the position of the bottom detection electrode of the second probe.

[0010] Preferably, the electric humidifier with anti-scaling water level monitoring function is provided with a water inlet assembly, which is arranged on the outside of the water tank and extends along the height direction of the water tank, and the water outlet of the water inlet assembly is sealed and connected with the bottom of the heating chamber, and the water inlet of the water inlet assembly is connected with the solenoid valve at the water supply end through a water pipe, and the vertical height of the water inlet is higher than the position of the detection electrode at the bottom end of the second probe, and the water body is controlled by the solenoid valve to flow into the heating chamber through the water inlet assembly.

[0011] Preferably, a water tank is also provided on the top of the water inlet assembly, and an overflow port is opened on one side of the water tank. The vertical height of the overflow port is lower than the vertical height of the water inlet and the vertical height of the top opening of the steam pipe, and is higher than the position of the detection electrode at the bottom end of the second probe.

[0012] Preferably, a drain port is provided at the bottom of the water tank and is connected to the bottom of the heating chamber for manually draining the water in the heating chamber.

[0013] Preferably, a detachable cover is provided on the top of the water tank body, and a high-temperature resistant silicone sealing ring is provided on the edge of the cover to achieve a sealed connection between the water tank body and the cover.

[0014] Preferably, the inner wall of the water tank body is made of stainless steel.

[0015] Preferably, thermal insulation cotton is provided inside the circumferential side wall of the water tank body.

[0016] Preferably, a temperature probe is provided on the inner wall at the top of the water tank body, and the temperature probe is used to detect the temperature of the inner wall of the water tank body in real time.

[0017] Preferably, the mesh number of the filter is set to 20 meshes.

[0018] Preferably, the isolation sleeve is made of stainless steel.

[0019] Due to the adoption of the above technical solution, the utility model has the following advantages and positive effects compared with the prior art:

[0020] (1) The utility model provides an electric humidifier with an anti-scaling water level monitoring function, which is internally provided with a plurality of stainless steel heating pipes for heating the water in the water tank to boiling, thereby generating water vapor. Since the utility model indirectly heats the water through the stainless steel heating pipes, the water in the water tank can be limited to pure water with a low ion content, thereby effectively reducing the adverse effects of the scale generated during the boiling process of the water on the humidification effect of the humidifier, as well as the subsequent cleaning and maintenance costs.

[0021] (2) The utility model provides an electric humidifier with anti-scale water level monitoring function, which uses an electrode probe to monitor the water level, wherein the probe includes a first probe and a second probe, and the detection electrodes at the bottom of the first probe and the second probe are set at different heights, that is, the heights of the detection electrodes at the bottom of the first probe and the second probe are limited to the upper and lower limits of the water level, so that the water level in the water tank can be stably controlled within the set range. Furthermore, in order to eliminate the problem that foam is easily generated on the surface of the water body during the boiling process, thereby affecting the water level detection accuracy of the probe, an isolation sleeve is provided on the outside of the probe, and a filter is provided at the bottom of the isolation sleeve at a position lower than the water level. The isolation sleeve can effectively isolate the liquid surface foam from contacting the probe, thereby effectively improving the detection accuracy of the probe for the water level.

[0022] (3) The utility model provides an electric humidifier with an anti-scaling water level monitoring function, in which a water inlet assembly is provided on the outside of the water tank, a water storage tank is provided on the top of the water inlet assembly, and an overflow port is provided on one side of the water storage tank. When a water level monitoring probe, a solenoid valve at the water supply end, or a humidifier control module fails and cannot accurately control the water supply, the overflow port utilizes the water pressure balance principle inside and outside the water tank to effectively prevent the problem of excessive water being injected into the water tank and being unable to be automatically discharged. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 The utility model provides an overall structural diagram of an electric heating humidifier with anti-scaling water level monitoring function;

[0024] Figure 2 A schematic diagram of the structure of a heating chamber of an electric humidifier with anti-scaling water level monitoring function provided by the utility model;

[0025] Figure 3 A structural schematic diagram of an electric heating humidifier cover with anti-scaling water level monitoring function provided by the utility model;

[0026] Figure 4 The utility model provides a structural schematic diagram of a water inlet component of an electrothermal humidifier with an anti-scaling water level monitoring function.

[0027] Explanation of the reference numerals: 1: water tank body; 2: steam pipe; 3: heating chamber; 4: heating assembly; 5: first probe; 6: second probe; 7: isolation sleeve; 8: filter screen; 9: water inlet assembly; 10: water inlet; 11: overflow; 12: water storage tank; 13: water outlet; 14: solenoid valve; 15: drain; 16: cover plate; 17: high temperature resistant silicone sealing ring; 18: temperature probe. DETAILED DESCRIPTION

[0028] The following is a further detailed description of an electric humidifier with anti-scaling water level monitoring function proposed by the utility model in combination with the accompanying drawings and specific embodiments. The advantages and features of the utility model will become clearer according to the following description and claims.

[0029] See also Figures 1 to 4 This embodiment provides an electric humidifier with anti-scaling water level monitoring function, including a water tank, a heating component 4 and a water level monitoring component. The three cooperate to achieve the function of heating the water in the water tank to generate water vapor and accurately controlling the water capacity in the water tank.

[0030] The water tank includes a water tank body 1 and a steam pipe 2. A heating chamber 3 is provided inside the water tank body 1. The heating chamber 3 is used to store water and heat the water to generate water vapor. The steam pipe 2 is provided at the top of the water tank body 1 and is sealed and connected to the heating chamber 3. The water vapor generated in the heating chamber 3 naturally moves upward and gathers at the top of the heating chamber 3 and is finally output to the outside through the steam pipe 2, thereby finally achieving the humidification effect on the external air. Among them, the steam pipe 2, as the only channel connecting the heating chamber 3 with the external space, not only plays the function of outputting water vapor, but also serves as the air pressure balance channel of the heating chamber 3 during the water injection and drainage process and the water heating process.

[0031] A heating assembly 4 is provided inside the heating chamber 3. The heating assembly 4 includes a plurality of stainless steel heating pipes extending along the height direction of the heating chamber 3, wherein the stainless steel heating pipes are at least partially immersed in the water inside the heating chamber 3. The water is heated indirectly by the heating operation of the stainless steel heating pipes, thereby causing the water to boil and generate water vapor. Since the specific models of stainless steel heating pipes are different and the heating effects are different, the specific temperature rise range of the stainless steel heating pipes themselves is not specifically limited. It is only necessary to ensure that the heating operation of the stainless steel heating pipes can make the water boil within the set time.

[0032] A water level monitoring component is also provided in the heating chamber 3, and the water level monitoring component includes an electrode probe and an isolation sleeve 7, wherein the electrode probe includes a first probe 5 and a second probe 6, and a detection electrode is arranged at the bottom of the electrode probe. When the detection electrode comes into contact with the water body, the conductivity of the detection electrode changes, and the height information of the water level can be determined. The first probe 5 and the second probe 6 are staggered along the height direction of the heating chamber 3, that is, there is a gap in the vertical height between the detection electrodes at the bottom of the first probe 5 and the second probe 6. The vertical height of the detection electrode of the first probe 5 represents the lowest setting position of the water body in the heating chamber 3, and the vertical height of the detection electrode of the second probe 6 represents the highest setting position of the water body in the heating chamber 3. Through the cooperation between the first probe 5 and the second probe 6, accurate control of the water capacity inside the water tank can be achieved. Furthermore, an isolation sleeve 7 is provided on the outside of the first probe 5 and the second probe 6, and the isolation sleeve 7 extends along the height direction of the heating chamber 3 to the bottom of the heating chamber 3. The side wall of the isolation sleeve 7 is a smooth plane. The bottom of the isolation sleeve 7 is provided with a filter screen 8 at a position lower than the bottom detection electrode of the first probe 5, and the top of the isolation sleeve 7 is provided with an air hole at a position higher than the bottom detection electrode of the second probe 6.

[0033] In the present embodiment, an electric humidifier with an anti-scale water level monitoring function is provided. Since stainless steel heating pipes are used to indirectly heat the water body, compared with the electrode heating method, the present embodiment does not limit the ion content in the water body. Therefore, during the use of the humidifier, pure water with a low ion content can be injected into the water tank to avoid the generation of a large amount of scale during the boiling process of the water body, thereby improving the steam generation efficiency and quality of the humidifier and reducing the subsequent cleaning and maintenance costs of the humidifier. At the same time, since foam is easily generated on the surface of the water body during the boiling process of the water body, even if the present embodiment has adopted pure water with low ion content, it is still inevitable to generate a certain amount of foam on the surface of the water body. During the use of the electrode probe, the detection electrode at the bottom of the electrode probe can generate current when it contacts the foam, thereby causing inaccurate water level monitoring. Therefore, in the present embodiment, an isolation sleeve 7 is arranged on the outside of the probe, and a filter screen 8 is arranged at the bottom of the isolation sleeve 7. The number of meshes of the filter screen 8 is set to 20 meshes, and the vertical setting height of the filter screen 8 is lower than the lowest setting height of the water level. After theoretical calculation and multiple experimental verifications, during the boiling process of the water body, the side wall of the isolation sleeve 7 can isolate the foam on the surface of the water body from the probe, greatly reducing the influence of the foam on the detection accuracy of the probe. At the same time, a filter screen 8 is arranged, which can effectively prevent scale in the water body from entering the internal space of the isolation sleeve 7, thereby avoiding the appearance of foam on the water surface inside the isolation sleeve 7.

[0034] Preferably, the electric humidifier with anti-scaling water level monitoring function provided in this embodiment is also provided with a water inlet assembly 9, which is arranged on the outside of the water tank and extends along the height direction of the water tank. The water inlet assembly 9 includes, from top to bottom, a water storage tank 12 with a water inlet 10 and an overflow port 11, a water inlet pipe and a water outlet 13, wherein the water inlet 10 is connected to the water supply end solenoid valve 14 through a water pipe, and the water outlet 13 is sealed and connected to the bottom of the heating chamber 3. By controlling the opening and closing of the water supply end solenoid valve 14, water can be injected into the heating chamber 3. Specifically, the vertical height of the water inlet 10 is higher than the position of the detection electrode at the bottom of the second probe 6, ensuring that the water can be normally injected into the heating chamber 3. An overflow port 11 is provided on one side of the water storage tank 12. The vertical height of the overflow port 11 is lower than the vertical height of the water inlet 10 and the vertical height of the top opening of the steam pipe 2, and is higher than the position of the detection electrode at the bottom end of the second probe 6. During the water injection process, if the water level monitoring probe, the water supply end solenoid valve 14 or the humidifier control module fails and cannot accurately control the water supply, the water inside and outside the water tank is affected by the water pressure balance, and the water level in the water tank is consistent with the water level in the water inlet component 9. When too much water is injected, the excess water in the water inlet component 9 will directly overflow from the overflow port 11, preventing the water in the water tank from being continuously injected and eventually overflowing from the top opening of the steam pipe 2, thereby avoiding damage to the humidifier.

[0035] Preferably, a drain port 15 is provided at the bottom of the water tank, and the drain port 15 is internally connected to the bottom of the heating chamber 3, and can be used to manually drain the water in the heating chamber 3 when the humidifier replaces the water or the equipment is cleaned.

[0036] Preferably, a removable cover 16 is provided on the top of the water tank body 1, and a high-temperature resistant silicone sealing ring 17 matching the edge of the top opening of the water tank body 1 is provided on the edge of the cover 16. The high-temperature resistant silicone sealing ring 17 can realize a sealed connection between the water tank body 1 and the cover 16. More specifically, the steam pipe 2 is arranged on the cover 16 to realize a sealed connection between the steam pipe 2 and the heating chamber 3. It is worth mentioning that the heating component 4, the water level monitoring component and the electrical connection module of the humidifier control module can be assembled on the upper side of the cover 16. The cover 16 can provide a fixing function for the heating component 4 and the water level monitoring component. During the assembly process, it is only necessary to ensure that the heating component 4 and the water level monitoring component remain sealed during the connection and fixation with the cover 16. The setting of the cover 16 can effectively prevent the risk of accidental splashing of boiling water and overflow of water vapor, thereby improving the safety of the humidifier.

[0037] Preferably, the inner wall of the water tank body 1, the wall of the cover plate 16 facing the water tank body 1, and the stainless steel heating pipe and isolation sleeve 7 mentioned in this embodiment are all made of stainless steel to avoid contamination of the water in the water tank during use.

[0038] Preferably, the side wall of the water tank body 1 is provided with thermal insulation cotton, which can effectively improve the heat storage performance of the water tank body 1, enhance the heating efficiency of the heating component 4, and reduce energy loss.

[0039] Preferably, a temperature probe 18 is provided on the inner wall at the top of the water tank body 1. The temperature probe 18 is used to detect the temperature of the side wall of the water tank body 1. When the water body is at a set capacity, the water body is heated by the heating component 4, and the temperature of the side wall of the water tank body 1 will rise to a stable range within a specified time. When the temperature probe 18 detects an abnormal temperature, it means that the water capacity in the water tank is abnormal or the heating component 4 fails. The setting of the temperature probe 18 helps to provide early warning when a humidifier fails.

[0040] The electric humidifier with anti-scaling water level monitoring function provided by this embodiment can realize the function of automatically producing water vapor with the help of the control module. The water level monitoring component uses the water level monitoring function of the first probe 5 and the second probe 6. When the water level is lower than the detection electrode at the bottom of the first probe 5, the first probe 5 outputs a first detection signal, the water supply end solenoid valve 14 is opened, and water is injected into the water tank through the water inlet component 9. When the water level is not higher than the detection electrode at the bottom of the first probe 5, the first probe 5 outputs a second detection signal, the water supply end solenoid valve 14 is closed, and water injection into the water tank is stopped. In addition, when the detection electrode at the bottom of the first probe 5 is immersed in the water body and the water level continues to rise, when the water body contacts the detection electrode at the bottom of the second probe 6, the second probe 6 can also output a third detection signal to control the water supply end solenoid valve 14 to close, so that the water level in the water tank can be limited to the height difference between the detection electrodes at the bottom of the first probe 5 and the second probe 6 by setting. The heating component 4 heats when there is a demand for water vapor production, heats the water body to a boiling state, and then generates water vapor.

[0041] The above is a detailed description of the embodiments of the present invention in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments. Even if various changes are made to the present invention, if these changes fall within the scope of the claims of the present invention and their equivalents, they still fall within the protection scope of the present invention.

Claims

1. An electric humidifier with anti-scaling water level monitoring function, characterized in that: include: A water tank, the water tank comprising a water tank body and a steam pipe, the water tank body is provided with a heating chamber inside, the heating chamber is used to heat water to generate water vapor, the steam pipe is provided at the top of the water tank body and is sealed and connected with the heating chamber, and is used to output water vapor to the outside; A heating assembly, the heating assembly is arranged inside the heating chamber, and includes a plurality of stainless steel heating pipes extending along the height direction of the heating chamber, the stainless steel heating pipes are at least partially immersed in the water inside the heating chamber, and are used to heat the water to generate water vapor; A water level monitoring component, the water level monitoring component includes a first probe and a second probe, the first probe and the second probe are staggered along the height direction of the heating chamber, and are used to monitor different liquid level height information of the water body inside the heating chamber. The water level monitoring component also includes an isolation sleeve, the isolation sleeve is sleeved on the outside of the first probe and the second probe and extends to the bottom of the heating chamber along the height direction of the heating chamber, a filter is provided at the bottom of the isolation sleeve below the position of the bottom detection electrode of the first probe, and an air hole is provided at the top above the position of the bottom detection electrode of the second probe.

2. The electric humidifier with anti-scaling water level monitoring function as claimed in claim 1, characterized in that: A water inlet assembly is provided, which is arranged on the outside of the water tank and extends along the height direction of the water tank. The water outlet of the water inlet assembly is sealed and connected with the bottom of the heating chamber. The water inlet of the water inlet assembly is connected with the electromagnetic valve at the water supply end through a water pipe, and the vertical height of the water inlet is higher than the position of the detection electrode at the bottom end of the second probe. The water body is controlled by the electromagnetic valve to flow into the heating chamber through the water inlet assembly.

3. The electric humidifier with anti-scaling water level monitoring function as claimed in claim 2, characterized in that: A water storage tank is also provided on the top of the water inlet assembly, and an overflow port is opened on one side of the water storage tank. The vertical height of the overflow port is lower than the vertical height of the water inlet and the vertical height of the top opening of the steam pipe, and is higher than the position of the detection electrode at the bottom end of the second probe.

4. The electrothermal humidifier with anti-scaling water level monitoring function as claimed in claim 1, characterized in that: A drain port is provided at the bottom of the water tank and is connected to the bottom of the heating chamber, so as to manually drain the water in the heating chamber.

5. The electric humidifier with anti-scaling water level monitoring function as claimed in claim 1, characterized in that: A detachable cover is provided on the top of the water tank body, and a high-temperature resistant silicone sealing ring is provided on the edge of the cover to achieve a sealed connection between the water tank body and the cover.

6. The electrothermal humidifier with anti-scaling water level monitoring function as claimed in claim 1, characterized in that: The inner wall of the water tank body is made of stainless steel.

7. The electrothermal humidifier with anti-scaling water level monitoring function as claimed in claim 1, characterized in that: The circumferential side wall of the water tank body is provided with heat-insulating cotton.

8. The electrothermal humidifier with anti-scaling water level monitoring function as claimed in claim 1, characterized in that: A temperature probe is provided on the inner wall at the top of the water tank body, and the temperature probe is used to detect the temperature of the inner wall of the water tank body in real time.

9. The electrothermal humidifier with anti-scaling water level monitoring function as claimed in claim 1, characterized in that: The mesh number of the filter is set to 20 meshes.

10. The electrothermal humidifier with anti-scaling water level monitoring function as claimed in claim 1, characterized in that: The isolation sleeve is made of stainless steel.

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