Electric heating humidifying device

Abstract

The utility model belongs to the technical field of heating and humidifying equipment, and discloses an electric heating and humidifying device. The electric heating humidifying device comprises a first box body, a second box body, a double-floating-ball liquid level switch and a controller. A heating element is arranged in the first box body, a moisture outlet part is formed in the top of the first box body, the heating element can heat liquid in the first box body to form steam, and the steam can be discharged from the moisture outlet part. The second box body and the first box body are arranged side by side, and the bottoms of the second box body and the first box body are communicated; the top of the second box body is provided with a liquid inlet and a valve, and the valve is installed at the liquid inlet. The double-floating-ball liquid level switch is located in the second box body and can output a switching signal according to the liquid level of the second box body. The valve and the double-floating-ball liquid level switch are both electrically connected with a controller, and the controller controls opening and closing of the valve through switching signals. The electric heating humidifying device is high in heating efficiency and large in moisture generation amount; the liquid level control precision is high, and the failure rate is low; the structure is compact and space is saved.

Description

Technical Field

[0001] This utility model relates to the field of heating and humidifying equipment technology, and in particular to an electric heating and humidifying device. Background Technology

[0002] A heating and humidifying device is a device that uses electrical energy to convert water into water vapor or water mist to increase the humidity of the environment. Among them, electric heating humidifying devices are widely used and are called electric humidifiers or boiler humidifiers. Specifically, based on the principle that electric current generates heat through resistance and electrical energy is converted into heat energy, the electric heating element is immersed in water. The electric heating element generates heat, which in turn boils the water and turns it into water vapor, thereby creating a humid environment.

[0003] Existing electric humidifiers include a water tank containing a heating element. The heating element heats the water in the tank, causing it to boil and produce steam, i.e., moisture, which humidifies the environment. When the water level in the tank decreases due to moisture release, the water level drops. When the water level reaches the minimum set value, a water level control switch is triggered to replenish the tank. After replenishment, when the water level rises to the maximum set value, the control switch is triggered again to stop replenishing the tank. However, in this type of electric humidifier, cold water continuously mixes into the boiling water during replenishment, reducing moisture output and resulting in low humidification efficiency. Furthermore, the boiling water causes significant deviations in water level control.

[0004] Therefore, there is an urgent need to develop an electric heating humidification device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide an electric heating humidification device that has high heating efficiency, generates a large amount of moisture, has high precision in liquid level control and a low failure rate, and has a compact structure that saves space.

[0006] To achieve this objective, the present invention adopts the following technical solution:

[0007] An electric heating humidifier includes:

[0008] A first chamber is provided with a heating element inside the first chamber. A moisture outlet is provided at the top of the first chamber. The heating element can heat the liquid inside the first chamber to form steam, and the steam can be discharged from the moisture outlet.

[0009] The second box is arranged side by side with the first box, and the bottom of the second box and the first box are connected. The top of the second box is provided with a liquid inlet and a valve, and the valve is installed at the liquid inlet.

[0010] A dual-float level switch is located in the second housing and can output a switch signal according to the liquid level in the second housing.

[0011] The controller is electrically connected to both the valve and the dual float level switch, and the controller controls the opening and closing of the valve through the switch signal.

[0012] As an optional technical solution for the electric heating humidification device, the electric heating humidification device also includes a base, and both the first box and the second box are fixed to the base.

[0013] As an optional technical solution for an electric heating humidification device, the heating element includes a heating tube and a protective cover. The heating tube is located at the bottom of the first housing and fixed to the inner side wall of the first housing. The electrical interface of the heating tube is located on the outer side wall of the first housing. The protective cover can cover the electrical interface.

[0014] As an optional technical solution for an electric heating humidification device, when the liquid level in the second chamber reaches the first liquid level, the valve opens and the second chamber is replenished with liquid; when the liquid level in the second chamber reaches the second liquid level, the valve closes and the second chamber stops replenishing with liquid. The first liquid level is higher than the height of the heating tube on the second chamber, and the first liquid level is lower than the second liquid level.

[0015] As an optional technical solution for an electric heating humidification device, a liquid level column is provided on the second housing, the liquid level column is arranged along the height direction of the second housing, and both ends of the liquid level column are connected to the second housing.

[0016] As an optional technical solution for an electric heating humidification device, the liquid level column is equipped with a liquid level indicator plate, which is used to indicate the liquid level of the liquid level column.

[0017] As an optional technical solution for an electric heating humidification device, the first housing is equipped with an automatic pressure relief valve. When the pressure inside the first housing reaches a predetermined value, the automatic pressure relief valve opens to release the pressure.

[0018] As an optional technical solution for an electric heating humidification device, the bottom wall of the first box is provided with a drain section, which is used to drain the liquid inside the first box.

[0019] As an optional technical solution for the electric heating humidification device, when the liquid level in the second chamber reaches the second liquid level, the valve is closed. The second chamber is provided with an overflow port, and the height of the overflow port is higher than the second liquid level along the height direction of the second chamber, so that when the liquid level in the second chamber is higher than the overflow port, the liquid in the second chamber can flow out from the overflow port.

[0020] As an optional technical solution for an electric heating humidification device, the moisture outlet includes an outlet pipe and an outlet mask, with the outlet mask located at the outlet pipe to protect the outlet pipe.

[0021] The beneficial effects of this utility model are:

[0022] The electric heating humidifier provided by this utility model includes a first chamber, a second chamber, a dual float level switch, and a controller. The first chamber contains a heating element and a moisture outlet at the top. The heating element heats the liquid in the first chamber to form steam, which is then discharged from the moisture outlet to humidify the environment. The second chamber is arranged side-by-side with its bottom connected. The top of the second chamber has a liquid inlet and a valve. The valve is installed at the liquid inlet, allowing liquid to be supplied to the first chamber indirectly by replenishing the second chamber. Because the first and second chambers are separate chambers, the heating element can heat only the liquid in the first chamber, resulting in a smaller volume of heated liquid and faster heating efficiency. Furthermore, since the first and second chambers are connected at the bottom, when the liquid level in the first chamber decreases due to steam discharge, new low-temperature liquid is added from the bottom of the first chamber, preventing the low-temperature liquid from directly entering the boiling zone and reducing moisture output. The side-by-side arrangement of the second and first chambers also contributes to a compact structure and saves space. The dual-float level switch is located in the second tank and outputs a switch signal based on the liquid level in the second tank. Both the valve and the dual-float level switch are electrically connected to the controller. The controller controls the opening and closing of the valve through the switch signal, thereby replenishing or stopping the replenishment of liquid in the second tank. The dual-float level switch controls the liquid level in the second tank, which in turn controls the liquid volume in the first tank. Because the liquid temperature in the second tank is low, there is no problem of drastic liquid level fluctuations caused by boiling liquid in the first tank, thus improving the accuracy of liquid level control. Furthermore, the heating element and the dual-float level switch are located in the first and second tanks respectively, which avoids the influence of high-temperature liquid in the first tank on the dual-float level switch and reduces the failure rate of the dual-float level switch. Attached Figure Description

[0023] Figure 1 This is a first structural schematic diagram of the electric heating humidification device provided in this embodiment of the utility model;

[0024] Figure 2 This is a second structural schematic diagram of the electric heating humidification device provided in this embodiment of the utility model;

[0025] Figure 3 This is a schematic diagram of the internal structure of the electric heating humidification device provided in this embodiment of the utility model.

[0026] In the picture:

[0027] 100. First chamber; 110. Heating element; 111. Heating tube; 112. Protective cover; 120. Moisture outlet; 121. Outlet pipe; 122. Outlet mask; 130. Automatic pressure relief valve; 140. Drainage section; 200. Second chamber; 210. Valve; 220. Liquid level column; 221. Liquid level indicator; 230. Overflow port; 300. Double float level switch; 400. Base. Detailed Implementation

[0028] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, and not the entire structure.

[0029] In the description of this utility model, unless otherwise explicitly specified and limited, the terms "connected," "linked," and "fixed" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0031] In the description of this embodiment, the terms "upper," "lower," "right," etc., refer to the orientation or positional relationship shown in the accompanying drawings. They are used only for ease of description and simplification of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are only used for distinction in description and have no special meaning.

[0032] This utility model provides an electric heating humidification device, which has high heating efficiency, generates a large amount of moisture, has high precision in liquid level control and a low failure rate, and has a compact structure that saves space.

[0033] Specifically, such as Figures 1 to 3 As shown, the electric heating humidifier includes a first housing 100, a second housing 200, a dual float level switch 300, and a controller. The first housing 100 contains a heating element 110, and its top has a moisture outlet 120. The heating element 110 heats the liquid inside the first housing 100, causing it to boil and form steam. The steam is discharged from the moisture outlet 120, forming moisture. The second housing 200 is arranged side-by-side with the first housing 100. The heights of the second housing 200 and the first housing 100 may be aligned or not. In this embodiment, their heights are aligned. The bottoms of the second housing 200 and the first housing 100 are connected, forming a communicating vessel. The top of the second housing 200 has a liquid inlet and a valve 210, with the valve 210 installed at the liquid inlet. The dual-float level switch 300 is located in the second housing 200. In this embodiment, the dual-float level switch 300 is connected to the top of the second housing 200. The dual-float level switch 300 can output a switch signal according to the liquid level of the second housing 200. Both the valve 210 and the dual-float level switch 300 are electrically connected to the controller, and the controller controls the opening and closing of the valve 210 through the switch signal.

[0034] Based on the above design, the first box 100 is provided with a heating element 110 and a moisture outlet 120 at the top. The heating element 110 can heat the liquid in the first box 100, which enters the boiling zone to form steam. The steam can be discharged from the moisture outlet 120 to form moisture and humidify the environment. The second chamber 200 and the first chamber 100 are arranged side by side and connected at the bottom. The top of the second chamber 200 is provided with a liquid inlet and a valve 210. The valve 210 is installed at the liquid inlet, which can indirectly replenish the first chamber 100 by replenishing the second chamber 200. Since the first chamber 100 and the second chamber 200 belong to different chambers, the heating element 110 can heat only the liquid in the first chamber 100. The amount of liquid heated is small, which can quickly heat the liquid and improve the heating efficiency. Furthermore, the first chamber 100 and the second chamber 200 are connected at the bottom. When the liquid in the first chamber 100 decreases due to steam discharge, new low-temperature liquid is replenished from the bottom of the first chamber 100, which can prevent the low-temperature liquid from directly entering the boiling zone and reduce the output of moisture. Moreover, the second chamber 200 and the first chamber 100 are arranged side by side, which is compact and saves space. The dual-float level switch 300 is located in the second tank 200 and can output a switch signal according to the liquid level of the second tank 200. Both the valve 210 and the dual-float level switch 300 are electrically connected to the controller. The controller controls the opening and closing of the valve 210 through the switch signal, thereby replenishing or stopping the replenishment of liquid in the second tank 200. By controlling the liquid level of the second tank 200 through the dual-float level switch 300, the liquid volume in the first tank 100 is controlled. Since the liquid temperature in the second tank 200 is low, there is no problem of drastic liquid level fluctuations caused by boiling liquid in the first tank 100, which improves the accuracy of liquid level control. Furthermore, the heating element 110 and the dual-float level switch 300 are located in the first tank 100 and the second tank 200 respectively, which can avoid the influence of the high-temperature liquid in the first tank 100 on the dual-float level switch 300 and reduce the failure rate of the dual-float level switch 300.

[0035] It should be noted that the "low temperature" of the aforementioned cryogenic liquid refers to the temperature of the liquid added to the second chamber 200 being lower than the temperature of the liquid inside the first chamber 100, and also to the temperature of the liquid newly entering the bottom of the first chamber 100 being lower than the temperature of the heated liquid inside the first chamber 100. Optionally, the electric heating humidification device also includes a base 400, to which both the first chamber 100 and the second chamber 200 are fixed. The base 400 supports and fixes the first chamber 100 and the second chamber 200, improving the structural stability of the electric heating humidification device.

[0036] It is also worth explaining the actual working process of the dual float level switch 300 in this embodiment. The float of the dual float level switch 300 contains a magnet. When the liquid level in the first tank 100 rises or falls, the float moves with the liquid level. When the magnet approaches the reed switches corresponding to the high and low liquid levels, the magnetic field generated by the magnet causes the switch contacts to close or open, thereby outputting a switch signal. Specifically, when the liquid level in the second tank 200 reaches the upper limit (i.e., the high liquid level), the float rises to a preset position, one of the reed switches is triggered, and the signal is transmitted to the controller. The controller controls the valve 210 to cut off the liquid injection. When the liquid level in the second tank 200 drops to the lower limit (i.e., the low liquid level), the float falls and triggers the other reed switch. The signal is transmitted to the controller, and the controller controls the valve 210 to start liquid replenishment.

[0037] Optionally, the heating element 110 includes a heating tube 111, which is located at the bottom of the first housing 100 and fixed to the inner wall of the first housing 100. The electrical interface of the heating tube 111 is located on the outer wall of the first housing 100. The heating tube 111 has a large contact area with the liquid, high heating efficiency, and simple arrangement.

[0038] Optionally, the heating element 110 also includes a protective cover 112, which can cover the electrical interface. The protective cover 112 protects the electrical interface and the external wiring of the heating element 111, and also prevents electric shock.

[0039] Preferably, the protective cover 112 is provided with a handle and a cable inlet. The handle facilitates the installation of the protective cover 112 and subsequent maintenance and disassembly; the cable inlet is used for the entry of external cables. Furthermore, the protective cover 112 has heat dissipation holes for cooling the external cables.

[0040] Preferably, the electric heating tube 111 extends in a direction perpendicular to the parallel direction of the first box 100 and the second box 200, and is located near the bottom of the first box 100 to facilitate heating of new low-temperature liquid entering the bottom of the first box 100.

[0041] Furthermore, when the liquid level in the second tank 200 reaches the first liquid level (i.e., low liquid level), valve 210 opens, and the second tank 200 is replenished with liquid. When the liquid level in the second tank 200 reaches the second liquid level (i.e., high liquid level), valve 210 closes, and the second tank 200 stops replenishing liquid. The first liquid level is higher than the height of the heating tube 111 in the second tank 200, and the first liquid level is lower than the second liquid level. In other words, the amount of liquid or the liquid level in the first tank 100 must be sufficient to ensure that the heating tube 111 is completely immersed in the liquid to avoid the heating tube 111 from burning dry.

[0042] In this embodiment, multiple sets of heating tubes 111 are arranged along the height of the first housing 100. For example, there may be two, three, or four sets.

[0043] Optionally, a liquid level column 220 is provided on the second tank 200. The liquid level column 220 is set along the height direction of the second tank 200, and both ends of the liquid level column 220 are connected to the second tank 200, so that the staff can easily observe the liquid level in the second water tank from the outside. When the double float liquid level switch 300 malfunctions, it is convenient for the staff to manage the electric heating humidification device.

[0044] It should be noted that, along the height direction of the second housing 200, the upper end of the liquid level column 220 is higher than the high liquid level (second liquid level) corresponding to the dual float liquid level switch 300, and the lower end of the liquid level column 220 is lower than the low liquid level (first liquid level) corresponding to the dual float liquid level switch 300.

[0045] Furthermore, to more intuitively observe the liquid level in the second water tank, a liquid level indicator 221 is provided on the liquid level column 220. The liquid level indicator 221 is used to mark the liquid level in the liquid level column 220. Specifically, the liquid level column 220 can be marked with the highest liquid level, the middle liquid level, and the lowest liquid level. The middle liquid level is located between the highest liquid level and the lowest liquid level. The highest liquid level corresponds to the second liquid level corresponding to the dual float level switch 300, and the lowest liquid level corresponds to the first liquid level corresponding to the dual float level switch 300.

[0046] Optionally, the first housing 100 is provided with an automatic pressure relief valve 130. When the pressure inside the first housing 100 reaches a predetermined value, the automatic pressure relief valve 130 opens to release the pressure, thereby preventing the housing or other components inside the housing from being damaged due to excessive pressure.

[0047] Optionally, the bottom wall of the first housing 100 is provided with a drain section 140, which is used to drain the liquid inside the first housing 100. When the electric heating humidifier is not used for a long time, in order to prevent the liquid in the first housing 100 from being stored for a long time and causing corrosion to the first housing 100, the second housing 200 and their corresponding internal components, the liquid in the first housing 100 and the second housing 200 is drained through the drain section 140, thereby extending the service life of the electric heating humidifier.

[0048] Specifically, the drainage section 140 includes a drainage port and a drainage pipe. The drainage port is located at the bottom of the first housing 100, and the drainage pipe is connected to the outside of the drainage port. The drainage pipe is finally connected to a waste liquid outlet with a manual valve. When drainage is not required, the manual valve is closed; when drainage is required, the manual valve is opened to drain the liquid.

[0049] Optionally, the second tank 200 is provided with an overflow port 230. When the liquid level in the second tank 200 is higher than the overflow port 230, the liquid in the second tank 200 can flow out from the overflow port 230. Thus, when excessive liquid is added, the excess liquid overflows from the overflow port 230.

[0050] Specifically, along the height direction of the second housing 200, the overflow outlet 230 is higher than the high liquid level (second liquid level) of the double float level switch 300 and lower than the top surface of the second housing 200. The overflow outlet 230 is connected to an external pipeline, which is connected to the excess water collection tank.

[0051] Optionally, the moisture outlet section 120 includes an outlet pipe 121 and an outlet mask 122, the outlet mask 122 being located at the outlet pipe 121 to protect the outlet pipe 121.

[0052] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make various obvious changes, readjustments, and substitutions without departing from the protection scope of this utility model. It is neither necessary nor possible to exhaustively describe all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. An electrically heated humidification device, characterized in that, include: A first housing (100) is provided with a heating element (110) inside the first housing (100). A moisture outlet (120) is provided on the top of the first housing (100). The heating element (110) can heat the liquid inside the first housing (100) to form steam, and the steam can be discharged from the moisture outlet (120). The second box (200) is arranged side by side with the first box (100), and the bottom of the second box (200) and the first box (100) are connected. The top of the second box (200) is provided with a liquid inlet and a valve (210), and the valve (210) is installed at the liquid inlet. A dual float level switch (300) is located in the second housing (200). The dual float level switch (300) can output a switch signal according to the liquid level of the second housing (200). The controller is electrically connected to both the valve (210) and the dual float level switch (300), and the controller controls the opening and closing of the valve (210) through the switch signal.

2. The electrically heated humidification device of claim 1, wherein, The electric heating humidifier also includes a base (400), and the first housing (100) and the second housing (200) are both fixed to the base (400).

3. The electrically heated humidification device of claim 1 or 2, wherein, The heating element (110) includes a heating tube (111) and a protective cover (112). The heating tube (111) is located at the bottom of the first housing (100) and fixed to the inner side wall of the first housing (100). The electrical interface of the heating tube (111) is located on the outer side wall of the first housing (100). The protective cover (112) can cover the electrical interface.

4. The electrically heated humidification device of claim 3, wherein, When the liquid level in the second tank (200) reaches the first liquid level, the valve (210) opens and the second tank (200) is replenished with liquid. When the liquid level in the second tank (200) reaches the second liquid level, the valve (210) closes and the second tank (200) stops replenishing with liquid. The first liquid level is higher than the height of the heating tube (111) on the second tank (200), and the first liquid level is lower than the second liquid level.

5. The electrically heated humidification device of claim 1 or 2, wherein, The second housing (200) is provided with a liquid level column (220), which is arranged along the height direction of the second housing (200), and both ends of the liquid level column (220) are connected to the second housing (200).

6. The electrically heated humidification device of claim 5, wherein, The liquid level column (220) is provided with a liquid level indicator (221), which is used to mark the liquid level of the liquid level column (220).

7. The electrically heated humidification device of claim 1 or 2, wherein, The first housing (100) is equipped with an automatic pressure relief valve (130). When the pressure inside the first housing (100) reaches a predetermined value, the automatic pressure relief valve (130) opens to release the pressure.

8. The electrically heated humidification device of claim 1 or 2, wherein, The bottom wall of the first box (100) is provided with a drain section (140), which is used to drain the liquid in the first box (100).

9. The electrically heated humidification device of claim 1, wherein, When the liquid level in the second tank (200) reaches the second liquid level, the valve (210) is closed. The second tank (200) is provided with an overflow port (230), and the height of the overflow port (230) is higher than the second liquid level along the height direction of the second tank (200), so that when the liquid level in the second tank (200) is higher than the overflow port (230), the liquid in the second tank (200) can flow out from the overflow port (230).

10. The electrically heated humidification device of claim 1 or 2, wherein, The moisture outlet (120) includes an outlet pipe (121) and an outlet mask (122), the outlet mask (122) being located at the outlet pipe (121) to protect the outlet pipe (121).

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