TWM665934U - Explosion-proof integrated level switch and temperature sensor - Google Patents

Abstract

The invention provides an explosion-proof integrated liquid level switch and temperature sensor, which mainly includes an explosion-proof body, a sensing module and a relay module. The relay module is arranged in the explosion-proof body, and the sensing module is arranged at one end thereof, so that a temperature sensing unit electrically connected to the sensing module and at least one liquid level detection sensing unit at a liquid level detection position are first electrically connected to a terminal connection unit of the relay module, and the temperature signal and the liquid level signal are transmitted to a processing module electrically connected to the other end of the terminal connection unit, so that the processing module can control the operating state of a heating module for heating the liquid. In this way, not only can the liquid level and temperature be detected at the same time, but also the manufacturing cost can be reduced.

Description

Explosion-proof integrated level switch and temperature sensor

This invention is about a sensing control device, in particular, an explosion-proof integrated liquid level switch and temperature sensor used in explosion-proof environments to indirectly heat liquid combustible materials by heating the liquid.

Gas is a fuel that is more convenient to use in modern society, especially in urban areas. Gas can be quickly transported to the desired location through gas pipelines, so that users can conveniently use gas for cooking and other activities. However, in areas where gas pipelines are not widely installed, barreled gas filled with liquefied gas is a better way to store the fuel people need to use in their daily lives. However, liquefied gas is mainly made by converting gaseous gas into liquefied gas similar to liquid after high pressure and low temperature treatment, and then filling the liquefied gas into steel cylinders for subsequent transportation and use.

However, liquefied gas needs to go through a vaporization process, that is, it needs to be converted into gaseous gas before it can be used as fuel. However, when liquefied gas is converted into combustible gaseous gas, a large amount of heat is required for the conversion process. Therefore, it is common that steel cylinders containing liquefied gas are prone to condensation on the outer periphery of the cylinder. This condensation not only lowers the temperature inside the cylinder, but also relatively affects the vaporization speed of the liquefied gas in the cylinder, which can easily cause the gaseous gas supplied by the cylinder to become unstable.

Therefore, in order to improve the above-mentioned shortcomings, for industrial and commercial equipment that needs to use liquefied gas in steel cylinders for continuous use as fuel, a liquefied gas heater is usually added to stably heat the liquefied gas. It is mainly used to stably convert the liquefied gas into gaseous gas in a gaseous state. However, the water used for water-insulated heating in the liquefied gas heater will also evaporate and overflow due to the heat, thereby causing the internal water level to drop. If the drop in the water level is not noticed, the liquefied gas heater may dry burn. Therefore, it is necessary to provide a method that can avoid the danger of dry burning of the liquefied gas heater and control the heating temperature to reduce the above-mentioned shortcomings.

The purpose of this invention is to provide an explosion-proof integrated liquid level switch and temperature sensor with an explosion-proof structure that can detect liquid level and temperature when heating liquefied gas.

To achieve the above-mentioned purpose, the invention provides an explosion-proof integrated liquid level switch and temperature sensor, which mainly includes an explosion-proof body, a sensing module and a relay module, and the explosion-proof body has a first explosion-proof unit, a second explosion-proof unit and a cable connection unit, the first explosion-proof unit is provided with a first channel, the second explosion-proof unit is provided with a second channel, the cable connection unit is provided with a cable channel, and one end of the first explosion-proof unit is assembled with one end of the second explosion-proof unit, and the explosion-proof body is assembled with the cable connection unit on the side wall composed of the first explosion-proof unit and the second explosion-proof unit; the sensing module has a containing tube, a first magnetic float, a first upper limiter, and a first lower limiter , a temperature sensing unit and at least one liquid level sensing unit, the accommodating tube body is locked at the other end of the second explosion-proof unit, and the temperature sensing unit and the liquid level sensing units are arranged in the accommodating tube body, and the first magnetic float, the first upper limiter and the first lower limiter are respectively assembled on the outer periphery of the accommodating tube body, and the first magnetic float is limited between the first upper limiter and the first lower limiter; and the relay module is arranged between the second channels of the second explosion-proof unit, and the relay module is also provided with a terminal connection unit; wherein the first channel, the second channel and the cable channel are connected, and the terminal connection unit is electrically connected to the temperature sensing unit and the liquid level sensing units respectively.

Furthermore, the terminal connection unit is electrically connected to a processing module, and the processing module receives and processes the temperature signal of the temperature sensing unit and the liquid level signal of the liquid level sensing units connected to the terminal connection unit, wherein the temperature sensing unit is located at the other end of the accommodating tube body relative to the second explosion-proof unit.

Furthermore, the sensing module is provided with a second magnetic float, a second upper limiter and a second lower limiter, wherein the second magnetic float is arranged between the second upper limiter and the second lower limiter, and the second upper limiter is located between the second magnetic float and the second explosion-proof unit, and the second lower limiter is located between the second magnetic float and the first upper limiter.

Furthermore, one of the liquid level sensing units is disposed between the first upper limiter and the first lower limiter, and another of the liquid level sensing units is disposed between the second upper limiter and the second lower limiter.

Furthermore, the terminal connection unit is electrically connected to a processing module, and the processing module receives and processes the temperature signal of the temperature sensing unit and the liquid level signal of the liquid level sensing units connected to the terminal connection unit, and the processing module is also electrically connected to a heating module. When the first magnetic float triggers the liquid level sensing unit located at the first upper limit switch and the first lower limit switch, the liquid level sensing unit transmits the liquid level signal to the processing module, and then the processing module controls the heating module to stop heating.

Furthermore, a spacing unit is provided in the second passage of the second explosion-proof unit, the spacing unit is provided with a through hole and one side surface of the spacing unit is assembled with the terminal connection unit.

Furthermore, the accommodating tube is filled with a sealing unit.

Furthermore, the first explosion-proof unit is provided with a plurality of locking holes and a plurality of locking elements, and the locking elements are respectively penetrated through the locking holes so that the first explosion-proof unit is locked and fixed to the second explosion-proof unit. The second explosion-proof unit is provided with a grounding unit on its outer peripheral side, and the grounding unit is locked to the outer peripheral side of the second explosion-proof unit.

Another explosion-proof integrated liquid level switch and temperature sensor provided by the present invention mainly includes an explosion-proof body, a sensing module and a relay module, and the explosion-proof body has a first explosion-proof unit, a second explosion-proof unit and a cable connection unit, the first explosion-proof unit is provided with a first channel, the second explosion-proof unit is provided with a second channel, the cable connection unit is provided with a cable channel, and one end of the first explosion-proof unit is assembled with one end of the second explosion-proof unit, and the explosion-proof body is assembled with the cable connection unit on the side wall composed of the first explosion-proof unit and the second explosion-proof unit; the sensing module is It has a containing tube body, a first magnetic float, a temperature sensing unit and a liquid level sensing unit. The containing tube body is locked at the other end of the second explosion-proof unit, and the temperature sensing unit and the liquid level sensing units are arranged in the containing tube body, and the first magnetic float is pivotally arranged on the outer periphery of the containing tube body; and the relay module is arranged between the second channels of the second explosion-proof unit, and the relay module is also provided with a terminal connection unit; wherein the first channel, the second channel and the cable channel are connected, and the terminal connection unit is electrically connected to the temperature sensing unit and the liquid level sensing units respectively.

Furthermore, the first magnetic float is a rocker arm float, and the terminal connection unit is electrically connected to a processing module, and the processing module receives and processes the temperature signal of the temperature sensing unit and the liquid level signal of the liquid level sensing units connected to the terminal connection unit, and the processing module is also electrically connected to a heating module. When the first magnetic float triggers the liquid level sensing unit, the liquid level sensing unit transmits the liquid level signal to the processing module. At this time, the processing module controls the heating module to continue heating. When the first magnetic float does not trigger the corresponding liquid level sensing unit, the processing module controls the heating module not to continue heating.

The explosion-proof integrated liquid level switch and temperature sensor of the present invention mainly arranges the temperature sensing unit of the sensing module and the liquid level sensing units in the containing tube body, and the liquid level sensing units are further arranged between the first upper limiter and the first lower limiter and between the second upper limiter and the second lower limiter, and the first magnetic float on the outer periphery of the containing tube body is limited between the first upper limiter and the first lower limiter, and the second magnetic float is limited between the second upper limiter and the second lower limiter, thereby, through the first magnetic float and the corresponding one of the liquid level sensing units, and the second magnetic float The ball and the corresponding another liquid level sensing unit can detect the liquid level height of the contained liquid, or the first magnetic float is a rocker float to detect the liquid level height of the contained liquid. Thereby, the processing module can control the heating module to stop heating when the liquid is below the low water level according to the liquid level signal transmitted by the liquid level sensing units, or control the heating module to operate according to the temperature signal of the temperature sensing unit. The containing tube and the explosion-proof body are combined and can be used in places that require explosion-proof standards. Therefore, the explosion-proof integrated liquid level switch and temperature sensor of the present invention can not only detect the liquid level and temperature at the same time, but also reduce the manufacturing cost.

Several preferred implementations of the technical features and operation methods of this application are listed below with illustrations for your reference. Furthermore, the proportions of the drawings in this work may not be drawn in accordance with the actual proportions for the purpose of explanation, and the proportions in the drawings shall not limit the scope of protection for this work.

Regarding the technology of this invention, please refer to Figures 1 to 4. This invention provides an explosion-proof integrated liquid level switch and temperature sensor 100, which mainly includes an explosion-proof body 10, a sensing module 20, a relay module 30 and a processing module 40, wherein:

The explosion-proof body 10 has a first explosion-proof unit 11, a second explosion-proof unit 12 and a cable connection unit 13. The first explosion-proof unit 11 is provided with a first channel 111, the second explosion-proof unit 12 is provided with a second channel 121, and the cable connection unit 13 is provided with a cable channel 131. One end of the first explosion-proof unit 11 is assembled with one end of the second explosion-proof unit 12, and the explosion-proof body 10 is assembled with the cable connection unit 13 on the side wall formed by the first explosion-proof unit 11 and the second explosion-proof unit 12. In this embodiment, the first explosion-proof unit 11 is locked to the second explosion-proof unit 12, and the cable connection unit 13 is locked to the side wall of the second explosion-proof unit 12, but it is not limited thereto.

The sensing module 20 comprises a housing tube 21, a first magnetic float 22, a second magnetic float 23, a first upper limiter 24, a first lower limiter 25, a second upper limiter 26, a second lower limiter 27, a temperature sensing unit 28 and two liquid level sensing units 29. The housing tube 21 is locked at the other end of the second explosion-proof unit 12, and the temperature sensing unit 28 and the liquid level sensing units 29 are arranged in the housing tube 21. The first magnetic float 22, the first upper stopper 24 and the first lower stopper 25 are respectively arranged on the outer periphery of the containing tube 21, and the first magnetic float 22 is limited between the first upper stopper 24 and the first lower stopper 25, and the second magnetic float 23, the second upper stopper 26 and the second lower stopper 27 are also respectively arranged on the outer periphery of the containing tube 21, and the second magnetic float 23 is limited between the second upper stopper 26 and the second lower stopper 27. 26 and the second lower stopper 27, and the second upper stopper 26 is located between the second magnetic float 23 and the second explosion-proof unit 12, and the second lower stopper 27 is located between the second magnetic float 23 and the first upper stopper 24. Therefore, the second magnetic float 23 is adjacent to the second explosion-proof unit 12, and the first magnetic float 22 is far away from the second explosion-proof unit 12. Moreover, the first upper stopper 24 and the first lower stopper 2 5, a liquid level sensing unit 29 and a temperature sensing unit 28 are provided between the second upper stopper 26 and the second lower stopper 27, and another liquid level sensing unit 29 is provided between the second upper stopper 26 and the second lower stopper 27, and the accommodating tube body 21 can be further filled with a sealing unit 50. The sealing unit 50 of this embodiment is formed by filling the interior of the accommodating tube body 21 with magnesium oxide powder and then baking and drying, and can be sealed with epoxy resin at the end adjacent to the second explosion-proof unit 12, but is not limited thereto;

The relay module 30 is disposed between the second channel 121 of the second explosion-proof unit 12. The relay module 30 is provided with a terminal connection unit 31. One end of the terminal connection unit 31 is electrically connected to the temperature sensing unit 28 and the liquid level sensing units 29. In this embodiment, a spacer unit 32 is provided in the second channel 121. The spacer unit 32 is provided with a through hole 321 to allow the signal line (unnumbered) of the temperature sensing unit 28 and the signal line (unnumbered) of the liquid level sensing units 29 to pass through. The terminal connection unit 31 is assembled on one side of the spacer unit 32 to be electrically connected to the signal line of the temperature sensing unit 28 and the signal line of the liquid level sensing units 29, but the present invention is not limited thereto; and

The processing module 40 is electrically connected to the other end of the terminal connection unit 31 of the relay module 30, and receives and processes the temperature signal transmitted by the temperature sensing unit 28 and the liquid level signal transmitted by the liquid level sensing units 29 which are electrically connected to the terminal connection unit 31. The processing module 40 is also electrically connected to a heating module 60. The processing module 40 can control whether the heating module 60 performs heating according to the temperature signal of the temperature sensing unit 28 and the liquid level signal of the liquid level sensing units 29.

The first channel 111, the second channel 121 and the cable channel 131 are interconnected, that is, the first channel 111, the second channel 121 and the cable channel 131 are interconnected, and the terminal connection unit 31 is electrically connected to the temperature sensing unit 28 and the liquid level sensing units 29 respectively;

When the first magnetic float 22 triggers the liquid level sensing unit 29 located at one of the first upper limiter 24 and the first lower limiter 25, the liquid level sensing unit 29 transmits the liquid level signal to the processing module 40, and the processing module 40 controls the heating module 60 to stop heating.

In addition, please refer to Figures 5 to 6, which are another embodiment of the explosion-proof integrated liquid level switch and temperature sensor 100 of the present invention. Its main structural features and the effects produced are substantially the same as those of the above-mentioned embodiments and will not be repeated. The main difference is that one end of the first explosion-proof unit 11 is assembled with one end of the second explosion-proof unit 12, and the cable connection unit 13 is assembled on the first explosion-proof unit. 11, and only the first magnetic float 22 is arranged on the outer peripheral side of the containing tube 21, and the first upper limiter 24 is located at the end of the containing tube 21 adjacent to the second explosion-proof unit 12, for sensing the high liquid level point, and the first lower limiter 25 is located at the other end of the containing tube 21 relative to the second explosion-proof unit 12, for sensing the low liquid level point, wherein the first explosion-proof The unit 11 is provided with a plurality of locking holes 112 and a plurality of locking elements 113. The locking elements 113 are respectively penetrated through the locking holes 112 so that the first explosion-proof unit 11 is locked and fixed to the second explosion-proof unit 12. In this way, the first channel 111, the second channel 121 and the cable channel 131 are still connected, and the second explosion-proof unit 12 is provided with a grounding unit 122 on its outer peripheral side. The grounding unit 122 is locked on the outer periphery of the second explosion-proof unit 12, and the sealing unit 50 is not arranged in the accommodating tube body 21. When the first magnetic float 22 triggers the liquid level sensing unit 29 of the first lower limiter 25, the liquid level sensing unit 29 transmits the liquid level signal to the processing module 40, and at this time the processing module 40 controls the heating module 60 to stop heating.

Please refer to Figures 7 to 8, which are another embodiment of the explosion-proof integrated liquid level switch and temperature sensor 100 of the present invention. Its main structural features and the effects produced are roughly the same as those of the above-mentioned embodiments and will not be repeated. The main difference is that the first magnetic float 22 of the sensing module 20 is pivotally arranged on the outer peripheral side of the accommodating tube 21. In this way, when the first magnetic float 22 triggers the liquid level sensing unit 29 , the liquid level sensing unit 29 transmits the liquid level signal to the processing module 40, and the processing module 40 controls the heating module 60 to continue heating. When the first magnetic float 22 does not trigger the corresponding liquid level sensing unit 29, the processing module 40 controls the heating module 60 to stop heating and replenish the liquid or water required for heating. In another embodiment of the present invention, the first magnetic float 22 is a rocker arm float, but is not limited to this.

Please refer to Figures 1 to 4 again. The explosion-proof body 10 of the explosion-proof integrated liquid level switch and temperature sensor 100 of the present invention is provided with the cable connection unit 13 on the side wall formed by the first explosion-proof unit 11 and the second explosion-proof unit 12. The relay module 30 provided in the second channel 121 of the second explosion-proof unit 12 has the terminal connection unit 31 and the spacing unit 32. The spacing unit 32 not only reduces the leakage from the cable channel 131, but also reduces the leakage from the cable channel 131. The terminal connection unit 31 is easily disposed in the second channel 121, and the terminal connection unit 31 is electrically connected to the signal line of the temperature sensing unit 28 and the signal line of the liquid level sensing units 29, respectively, so that the processing unit electrically connected at the other end can receive and process the temperature signal of the temperature sensing unit 28 and can receive and process the liquid level signal of the liquid level sensing units 29, and the disadvantages of inconvenience in installation caused by the excessive length of the signal line are eliminated;

Furthermore, the first upper stopper 24 and the first lower stopper 25 provided on the outer circumference of the containing tube body 21 are provided on the outer circumference of the containing tube body 21, so that the low liquid level point can be set at the position of the outer circumference of the containing tube body 21, and the second upper stopper 26 and the second lower stopper 27 can be provided to further set the high liquid level point at the position of the outer circumference of the containing tube body 21. When the liquid level in the container of the explosion-proof integrated liquid level switch and temperature sensor 100 decreases, if the first magnetic float 22 floating on the liquid level moves between the first upper limiter 24 and the first lower limiter 25 and triggers the corresponding liquid level sensing unit 29, the processing module 40 receives and processes the liquid level signal transmitted by the liquid level sensing unit 29, and controls the heating module 60 to stop heating to avoid dryness. To prevent the danger of burning, when the user fills the liquid and makes the first magnetic float 22 abut against the first upper limiter 24, the processing module 40 enables the heating module 60 to heat the liquid. In addition, when the second magnetic float 23 triggers the other liquid level sensing unit 29 at the high liquid level point, the processing module 40 will also generate a corresponding control state according to the setting. In addition, when the first magnetic float 22 is assembled When the arm float is shaken, the processing module 40 will also trigger the liquid level sensing unit 29 to detect the liquid level height of the contained liquid according to the position of the first magnetic float 22. In this way, the explosion-proof integrated liquid level switch and temperature sensor 100 of the present invention can not only detect the temperature and liquid level of the liquid at the same time, but also control the heating module 60 to heat according to the liquid level, thereby improving the safety and convenience of use.

In summary, the explosion-proof integrated liquid level switch and temperature sensor 100 of the present invention mainly arranges the temperature sensing unit 28 of the sensing module 20 and the liquid level sensing units 29 in the accommodating tube body 21, and the liquid level sensing units 29 are further arranged between the first upper limiter 24 and the first lower limiter 25 and between the second upper limiter 26 and the second lower limiter 27, and the first magnetic float 22 on the outer peripheral side of the accommodating tube body 21 is limited between the first upper limiter 24 and the first lower limiter 25, and the second magnetic float 23 is limited between the second upper limiter 26 and the second lower limiter 27, thereby, through the first magnetic float 22 and the corresponding one of the liquid level sensors, the liquid level sensors 29 are arranged between the first upper limiter 24 and the first lower limiter 25, and the second magnetic float 23 is limited between the second upper limiter 26 and the second lower limiter 27. Unit 29, and the second magnetic float 23 and the corresponding other liquid level sensing unit 29 can detect the liquid level height of the contained liquid, or the first magnetic float 22 is assembled as a rocker float to detect the liquid level height of the contained liquid, thereby, the processing module 40 can control the heating module 60 to stop heating when the liquid is below the low water level according to the liquid level signal transmitted by the liquid level sensing unit 29, or control the heating module 60 to operate according to the temperature signal of the temperature sensing unit 28, and the containing tube 21 and the explosion-proof body 10 are combined and can be used in places that require explosion-proof standards. Therefore, the explosion-proof integrated liquid level switch and temperature sensor of the present invention can not only detect the liquid level and temperature at the same time, but also reduce the manufacturing cost.

100: Explosion-proof integrated level switch and temperature sensor 10: Explosion-proof body 11: First explosion-proof unit 111: First channel 112: Locking hole 113: Locking element 12: Second explosion-proof unit 121: Second channel 122: Grounding unit 13: Cable connection unit 131: Cable channel 20: Sensing module 21: Accommodating tube 22: First magnetic float 23: Second magnetic float 24: First upper limiter 25: First lower limiter 26: Second upper limiter 27: Second lower limiter 28: Temperature sensing unit 29: Liquid level sensing unit 30: Relay module 31: Terminal connection unit 32: Spacer unit 321: Through hole 40: Processing module 50: Sealing unit 60: Heating module

Figure 1: A three-dimensional schematic diagram of the explosion-proof integrated liquid level switch and temperature sensor of this creation. Figure 2: A three-dimensional schematic diagram of the explosion-proof integrated liquid level switch and temperature sensor of this creation. Figure 3: A cross-sectional schematic diagram of the explosion-proof integrated liquid level switch and temperature sensor of this creation. Figure 4: A schematic diagram of the use of the explosion-proof integrated liquid level switch and temperature sensor of this creation. Figure 5: A three-dimensional schematic diagram of another embodiment of the explosion-proof integrated liquid level switch and temperature sensor of this creation. Figure 6: A cross-sectional schematic diagram of another embodiment of the explosion-proof integrated liquid level switch and temperature sensor of this creation. Figures 7 and 8: A schematic diagram of the first magnetic float of another embodiment of the explosion-proof integrated liquid level switch and temperature sensor of this creation.

100: Explosion-proof integrated liquid level switch and temperature sensor

10: Explosion-proof body

11: First explosion-proof unit

12: Second explosion-proof unit

13: Cable connection unit

131: Cable channel

20:Sensor module

21: Container tube

22: The first magnetic float

23: Second magnetic float

24: The first upper limiter

26: Second upper limiter

Claims (10)

An explosion-proof integrated liquid level switch and temperature sensor, which mainly includes: An explosion-proof body, which has a first explosion-proof unit, a second explosion-proof unit and a cable connection unit, wherein the first explosion-proof unit is provided with a first channel, the second explosion-proof unit is provided with a second channel, the cable connection unit is provided with a cable channel, and one end of the second explosion-proof unit is assembled with one end of the first explosion-proof unit, and the explosion-proof body is assembled with the cable connection unit on the side wall formed by the first explosion-proof unit and the second explosion-proof unit; A sensing module, comprising a containing tube, a first magnetic float, a first upper limiter, a first lower limiter, a temperature sensing unit and at least one liquid level sensing unit, wherein the containing tube is locked at the other end of the second explosion-proof unit, and the temperature sensing unit and the liquid level sensing units are arranged in the containing tube, and the first magnetic float, the first upper limiter and the first lower limiter are respectively arranged on the outer periphery of the containing tube, and the first magnetic float is limited between the first upper limiter and the first lower limiter; and a relay module, which is arranged between the second channels of the second explosion-proof unit, and the relay module is also provided with a terminal connection unit; wherein the first channel, the second channel and the cable channel are connected; Wherein, the terminal connection unit is electrically connected to the temperature sensing unit and the liquid level sensing units respectively. As described in claim 1, the explosion-proof integrated liquid level switch and temperature sensor, further, the terminal connection unit is electrically connected to a processing module, and the processing module receives and processes the temperature signal of the temperature sensing unit connected to the terminal connection unit and the liquid level signal of the liquid level sensing units, wherein the temperature sensing unit is located at the other end of the accommodating tube body relative to the second explosion-proof unit. As described in claim 1, the explosion-proof integrated liquid level switch and temperature sensor, further, the sensing module is provided with a second magnetic float, a second upper limiter and a second lower limiter, wherein the second magnetic float is arranged between the second upper limiter and the second lower limiter, and the second upper limiter is located between the second magnetic float and the second explosion-proof unit, and the second lower limiter is located between the second magnetic float and the first upper limiter. As described in claim 3, the explosion-proof integrated liquid level switch and temperature sensor further comprises a liquid level sensing unit disposed between the first upper limit switch and the first lower limit switch, and another liquid level sensing unit disposed between the second upper limit switch and the second lower limit switch. As described in claim 4, the explosion-proof integrated liquid level switch and temperature sensor, further, the terminal connection unit is electrically connected to a processing module, and the processing module receives and processes the temperature signal of the temperature sensing unit and the liquid level signal of the liquid level sensing units connected to the terminal connection unit, and the processing module is also electrically connected to a heating module. When the first magnetic float triggers the liquid level sensing unit limited to the first upper limit switch and the first lower limit switch, the liquid level sensing unit transmits the liquid level signal to the processing module. At this time, the processing module controls the heating module to stop heating. When the first magnetic float does not trigger the corresponding liquid level sensing unit, the processing module controls the heating module to continue heating. As described in claim 1, the explosion-proof integrated liquid level switch and temperature sensor, further, a spacing unit is provided in the second channel of the second explosion-proof unit, the spacing unit is provided with a through hole and one side surface of which is assembled with the terminal connection unit. As described in claim 1, the explosion-proof integrated liquid level switch and temperature sensor, further, the containing tube is filled with a sealing unit. As described in claim 1, the explosion-proof integrated liquid level switch and temperature sensor, further, the first explosion-proof unit is provided with a plurality of locking holes and a plurality of locking elements, the locking elements are respectively penetrated through the locking holes so that the first explosion-proof unit is locked and fixed to the second explosion-proof unit, and the second explosion-proof unit is provided with a grounding unit on its outer peripheral side, and the grounding unit is locked to the outer peripheral side of the second explosion-proof unit. An explosion-proof integrated liquid level switch and temperature sensor, which mainly includes: An explosion-proof body, which has a first explosion-proof unit, a second explosion-proof unit and a cable connection unit, wherein the first explosion-proof unit is provided with a first channel, the second explosion-proof unit is provided with a second channel, the cable connection unit is provided with a cable channel, and one end of the second explosion-proof unit is assembled with one end of the first explosion-proof unit, and the explosion-proof body is assembled with the cable connection unit on the side wall formed by the first explosion-proof unit and the second explosion-proof unit; A sensing module having a containing tube, a first magnetic float, a temperature sensing unit and a liquid level sensing unit, wherein the containing tube is locked at the other end of the second explosion-proof unit, and the temperature sensing unit and the liquid level sensing units are arranged in the containing tube, and the first magnetic float is pivotally arranged on the outer periphery of the containing tube; and a relay module, which is arranged between the second channels of the second explosion-proof unit, and the relay module is also provided with a terminal connection unit; wherein the first channel, the second channel and the cable channel are connected; wherein the terminal connection unit is electrically connected to the temperature sensing unit and the liquid level sensing units respectively. As described in claim 9, the explosion-proof integrated liquid level switch and temperature sensor, further, the first magnetic float is a rocker float, and the terminal connection unit is electrically connected to a processing module, the processing module receives and processes the temperature signal of the temperature sensing unit connected to the terminal connection unit and the liquid level signal of the liquid level sensing units, and the processing module is also electrically connected to a heating module. When the first magnetic float triggers the liquid level sensing unit, the liquid level sensing unit transmits the liquid level signal to the processing module, at which time the processing module controls the heating module to continue heating, and when the first magnetic float does not trigger the corresponding liquid level sensing unit, the processing module controls the heating module not to continue heating.

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