Dry-burning-resistant electric heating rod

Abstract

An anti-dry-burning electric heating rod comprises a heating rod body, a temperature controller electrically connected with the heating rod body through a first connecting line and a temperature sensing probe electrically connected with the temperature controller through a second connecting line, and a first liquid level detector is arranged at the end, connected with the first connecting line, of the heating rod body. A second liquid level detector is arranged at the end, away from the second connecting line, of the temperature sensing probe, and when any liquid level detector is higher than the water surface, the temperature controller gives out an alarm prompt and controls the heating rod body to stop working. According to the utility model, the safety and reliability of the heating rod are effectively improved, dry burning and overheating are prevented, stable operation of equipment is ensured, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to heating rod technical field, concretely relates to a dry burning prevention electric heating rod. BACKGROUND

[0002] In the field of fishery culture, ornamental fish hobby and aquarium, electric heating rod is widely used to maintain the stability of water temperature to ensure the healthy growth of aquatic organisms. However, the traditional electric heating rod has certain safety hazards in the process of use, especially in the environment of water flow or long-term no water, if the electric heating rod cannot be completely immersed in water, dry burning phenomenon may occur due to lack of water, which not only damages the heating rod itself, but also may cause fire and other serious safety accidents.

[0003] And the temperature sensing probe of the existing electric heating rod is integrated with the heating rod, specifically, since the temperature sensing probe is closely integrated with the heating rod, the temperature measurement range is limited to the water area near the heating rod. In the fish tank environment, the water temperature may present uneven distribution due to various factors (such as water flow, illumination, biological activity and fish tank shape, etc.). The integrally integrated temperature sensing probe cannot capture these subtle temperature differences, resulting in that the temperature measurement result can only reflect the local water temperature near the heating rod, rather than the real temperature of the whole fish tank.

[0004] This inaccurate temperature measurement not only affects the accurate control of the heating rod on the water temperature of the fish tank, but also may cause large water temperature fluctuation, and further affect the growth environment of aquatic organisms. For example, in ornamental fish culture, slight change of water temperature may have a significant impact on the health of fish. And in fishery culture, water temperature fluctuation may also affect the reproduction, growth rate and survival rate of aquatic organisms. UTILITY MODEL CONTENTS

[0005] The utility model aims at providing a dry burning prevention electric heating rod to solve the technical problems pointed out in the background

[0006] To solve the above technical problems, the utility model adopts the following technical scheme:

[0007] A dry burning prevention electric heating rod, comprising a heating rod body, a temperature controller electrically connected to the heating rod body through a first connecting line, and a temperature sensing probe electrically connected to the temperature controller through a second connecting line, wherein the end of the heating rod body connected to the first connecting line is provided with a first liquid level detector, and the end of the temperature sensing probe away from the second connecting line is provided with a second liquid level detector, when any liquid level detector is higher than the water surface, the temperature controller sends an alarm prompt and controls the heating rod body to stop working.

[0008] Further, the heating rod body comprises a heating tube, an end sleeve arranged at the end of the heating tube, the first connecting wire is linked to the end sleeve, the first liquid level detector is arranged on the end sleeve, and the indicator lamp is also arranged on the end sleeve.

[0009] Further, the temperature controller is provided with a measured temperature display screen, a set temperature display screen, a constant temperature indicator lamp, a main machine running lamp, a fault indicator lamp, a power indicator lamp and a control switch.

[0010] Further, the power plug electrically connected with the temperature controller is further included.

[0011] Further, the first liquid level detector and the second liquid level detector are liquid level sensors.

[0012] Further, the heating tube is made of pure titanium material with corrosion resistance and high thermal conductivity, and the heating tube and the end sleeve are sealed.

[0013] Further, the outer surface of the heating rod body is further coated with an insulating layer.

[0014] Further, the temperature controller has an over-temperature protection function, and when the measured temperature exceeds the preset safety temperature threshold, the power supply of the heating rod body is automatically cut off.

[0015] Compared with the prior art, the utility model has the beneficial effects that:

[0016] The utility model discloses integrated heating rod body, temperature controller, temperature sensing probe and double liquid level detector, wherein the heating rod body is composed of pure titanium heating tube and sealing end sleeve, and is equipped with indicator lamp. The scheme realizes double liquid level monitoring through liquid level sensor, and once the liquid level is abnormal, alarms and stops heating. The design effectively improves the safety and reliability of the heating rod, prevents dry burning and overheating, ensures the stable operation of the equipment, and prolongs the service life. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the drawings needed to be used in the embodiment or the prior art description will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Fig. 1 It is the structural schematic diagram of the utility model;

[0019] Fig. 2 It is the structural schematic diagram of the heating rod body of the utility model;

[0020] Fig. 3The utility model discloses practical application schematic diagram. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be described clearly and completely below, and apparently, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without making creative labor belong to the range of protection of the utility model.

[0022] In the description of the utility model, it is understood that the orientation or position relation indicated by the terms "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer" and the like is the orientation or position relation based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.

[0023] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood broadly, for example, can be fixed connection, or detachable connection, or integral; can be mechanical connection, or electrical connection; can be direct connection, or indirect connection through intermediate medium, can be the communication inside two elements or the interaction relation of two elements. For the person skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0024] In the utility model, unless otherwise explicitly specified and limited, the first feature is "on" or "under" the second feature, which can be direct contact of the first and second features, or indirect contact of the first and second features through intermediate medium. Moreover, the first feature "over", "above" and "on" the second feature can be directly above or obliquely above the first feature, or only indicate that the horizontal height of the first feature is higher than that of the second feature. The first feature "under", "below" and "on" the second feature can be directly below or obliquely below the first feature, or only indicate that the horizontal height of the first feature is less than that of the second feature.

[0025] As Figs. 1-3As shown, a dry-burning prevention electric heating rod includes a heating rod body 3, a temperature controller 1 electrically connected to the heating rod body 3 through a first connecting line 2, and a temperature sensing probe 6 electrically connected to the temperature controller 1 through a second connecting line 5. The end of the heating rod body 3 connected to the first connecting line 2 is provided with a first liquid level detector 4, and the end of the temperature sensing probe 6 away from the second connecting line 5 is provided with a second liquid level detector 7. When either liquid level detector is above the water surface, the temperature controller 1 sends an alarm prompt and controls the heating rod body 3 to stop working.

[0026] When the heating rod body 3 and the temperature sensing probe 6 are both below the liquid surface, neither liquid level detector will trigger an alarm. At this time, the temperature controller 1 controls the working state of the heating rod body 3 according to the temperature information fed back by the temperature sensing probe 6 to keep the temperature of the liquid within the set range. If either liquid level detector (first liquid level detector 4 or second liquid level detector 7) detects that its location is above the water surface, i.e., at least part of the heating rod body 3 or the temperature sensing probe 6 is exposed to the air, it means that the heating equipment may be at risk of dry burning. Once the liquid level detector detects this situation, it will immediately send a signal to the temperature controller 1. After receiving the signal, the temperature controller 1 will immediately send an alarm prompt (such as a sound alarm, a light alarm, etc.) to remind the operator to pay attention. At the same time, the temperature controller 1 will also control the heating rod body 3 to stop working to prevent equipment damage or safety hazards caused by dry burning.

[0027] At the same time, after the temperature sensing probe is separated from the heating rod, it can more accurately sense the actual temperature of the liquid, thereby avoiding the influence of direct heat radiation from the heating rod on the temperature sensing probe and improving the precision of temperature control. The separation design allows the temperature sensing probe and the heating rod to be installed at different positions, avoiding safety hazards caused by overheating of the heating rod. At the same time, this design also facilitates maintenance and repair of the equipment, reducing the risk of equipment failure. The separation design of the temperature sensing probe and the heating rod allows the equipment to adapt to different application scenarios and needs. For example, in a large water tank or swimming pool, the temperature sensing probe can be installed at different depths of the liquid to obtain more comprehensive temperature information. The separation design makes the installation of the temperature sensing probe and the heating rod more flexible, allowing adjustments and optimizations according to actual needs. At the same time, this design also facilitates maintenance and repair work of the equipment, reducing maintenance costs and time.

[0028] Specifically, as shown, the heating rod body 3 includes a heating tube 31 and an end sleeve 32 arranged at the end of the heating tube 31. The first connecting line 2 is linked to the end sleeve 32, and the first liquid level detector 4 is arranged on the end sleeve 32. An indicator light is also arranged on the end sleeve 32.

[0029] Specifically, as shown in the figure, the temperature controller 1 is provided with a measured temperature display screen 11, a set temperature display screen 12, a constant temperature indicator lamp 13, a main machine running lamp 14, a fault indicator lamp 15, a power indicator lamp 16 and a control switch 17.

[0030] Specifically, as shown in the figure, the temperature controller 1 is provided with a measured temperature display screen 11, a set temperature display screen 12, a constant temperature indicator lamp 13, a main machine running lamp 14, a fault indicator lamp 15, a power indicator lamp 16 and a control switch 17.

[0031] Specifically, as shown in the figure, the first liquid level detector 4 and the second liquid level detector 7 are liquid level sensors, and are also made of titanium alloy material, so that they have better sensing performance, and the water shortage protection is more accurate and safer.

[0032] Specifically, as shown in the figure, the heating pipe 31 is made of pure titanium material with corrosion resistance and high thermal conductivity, and a seal is formed between the heating pipe 31 and the end sleeve 32. The outer surface of the heating rod body 3 is also coated with an insulating layer.

[0033] Specifically, as shown in the figure, the temperature controller 1 has an over-temperature protection function, and when the measured temperature exceeds the preset safety temperature threshold, the power supply of the heating rod body 3 is automatically cut off.

[0034] The utility model discloses integrated heating rod body, temperature controller, temperature sensing probe and double liquid level detector, wherein the heating rod body is composed of pure titanium material heating pipe and sealing end sleeve, and is equipped with indicator lamp. The scheme realizes double liquid level monitoring through liquid level sensor, and once the liquid level is abnormal, alarm and stop heating. This design effectively improves the safety and reliability of the heating rod, prevents dry burning and overheating, ensures the stable operation of the equipment, and prolongs the service life.

[0035] The above only for the preferred embodiment of the utility model has been described, and does not limit the utility model, and any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

[0036] In addition, it should be understood that, although the present specification is described according to the embodiment, not every embodiment contains only one independent technical scheme, and the description mode of the specification is only for the sake of clarity, and the person skilled in the art should consider the specification as a whole, and the technical scheme in each embodiment can also be combined to form other embodiments that can be understood by the person skilled in the art.

Claims

1. A dry-burn prevention electric heating rod, characterized by, The heating rod body (3), the temperature controller (1) connected with the heating rod body (3) through the first connecting line (2), and the temperature sensing probe (6) connected with the temperature controller (1) through the second connecting line (5), the end of the heating rod body (3) connected with the first connecting line (2) is provided with the first liquid level detector (4), the end of the temperature sensing probe (6) away from the second connecting line (5) is provided with the second liquid level detector (7), when any liquid level detector is higher than the water surface, the temperature controller (1) sends an alarm prompt and controls the heating rod body (3) to stop working.

2. A dry-burn prevention electric heating rod according to claim 1, wherein The heating rod body (3) comprises a heating tube (31) and an end sleeve (32) arranged at the end of the heating tube (31), the first connecting line (2) is connected to the end sleeve (32), the first liquid level detector (4) is arranged on the end sleeve (32), and an indicating lamp is further arranged on the end sleeve (32).

3. A dry-burn prevention electric heating rod according to claim 2, wherein The temperature controller (1) is provided with a measured temperature display screen (11), a set temperature display screen (12), a constant temperature indicating lamp (13), a main machine running lamp (14), a fault indicating lamp (15), a power indicating lamp (16) and a control switch (17).

4. A dry-burn prevention electric heating rod according to claim 3, wherein The power plug (8) connected with the temperature controller (1) is further included.

5. A dry-burn prevention electric heating rod according to claim 4, wherein The first liquid level detector (4) and the second liquid level detector (7) are liquid level sensors.

6. A dry-burn prevention electric heating rod according to claim 5, wherein The heating tube (31) is made of pure titanium material with corrosion resistance and high thermal conductivity, and the heating tube (31) and the end sleeve (32) form a seal.

7. A dry-burn prevention electric heating rod according to claim 6, wherein The outer surface of the heating rod body (3) is further coated with an insulating layer.

8. A dry-burn prevention electric heating rod according to claim 7, wherein The temperature controller (1) has an over-temperature protection function, and when the measured temperature exceeds the preset safety temperature threshold, the power supply of the heating rod body (3) is automatically cut off.

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