Liquefied natural gas (LNG) detection temperature alarm assembly

Abstract

The utility model discloses an LNG liquefied natural gas detection temperature alarm assembly which comprises a cold air box, the cold air box is fixedly installed on a liquefied gas outer tank, a liquefied gas inner tank is sleeved with the liquefied gas outer tank, an annular cavity is formed between the liquefied gas inner tank and the liquefied gas outer tank, and an air spraying pipe is fixed to the inner wall of the top end of the annular cavity. An air inlet net opening is formed in one side of an inner cavity of the cold air box, an air blower is fixed to the bottom end of the cavity, a semiconductor chilling plate is fixed to the top end of the cavity, the output end of the air blower communicates with an air spraying pipe, the bottom end of an annular cavity communicates with an air outlet, and a hydraulic rod with the output end leading into the liquefied gas inner tank is fixed to the top end of the liquefied gas inner tank. The output end of the hydraulic rod is in driving connection with the sliding block, a temperature sensor is fixed to the sliding block, and the controller receives signals of the temperature sensor and controls the states of the air blower, the semiconductor chilling plate and the alarm. According to the utility model, the temperature of each liquid level depth in the storage tank can be monitored, and automatic alarm and cooling can be carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of temperature detection, in particular to an LNG liquefied natural gas detection temperature alarm component. Background Art

[0002] At present, in the process of liquefied gas extraction and transportation, it is often necessary to use storage tanks to store LNG liquefied natural gas. LNG liquefied natural gas is made by compressing and cooling natural gas to its boiling point to become a liquid, which is easy to transport and re-gasified when used.

[0003] The current LNG liquefied natural gas detection temperature alarm component can only give an alarm warning to the user, but cannot actively cool down the system, and still poses a great risk. Utility Model Content

[0004] The purpose of the present application is to provide an LNG liquefied natural gas detection temperature alarm component to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the present application provides the following technical solutions: an LNG liquefied natural gas detection temperature alarm component, comprising a cold air box, a controller, an alarm, an air jet pipe and a temperature sensor, wherein the cold air box is fixedly mounted on a liquefied gas outer tank, a liquefied gas inner tank is sleeved inside the liquefied gas outer tank, an annular cavity is provided between the liquefied gas inner tank and the liquefied gas outer tank, an air jet pipe is fixedly mounted on the inner wall of the top end of the annular cavity, a plurality of evenly distributed air jets facing the liquefied gas inner tank are connected to the bottom end of the air jet pipe, a chamber is provided inside the cold air box, and an inlet is provided on one side of the chamber. The air mesh port, a blower is fixedly installed at the bottom end of the chamber, a semiconductor refrigeration sheet is fixedly installed at the top end of the chamber, the output end of the blower is connected to the air jet pipe, the bottom end of the annular cavity is connected to the air outlet, the top end of the liquefied gas inner tank is fixedly installed with a hydraulic rod whose output end leads into the interior thereof, the output end of the hydraulic rod drives a sliding block connected thereto, a temperature sensor is fixedly installed on the sliding block, a controller and an alarm are fixedly installed on the outer wall of the cold air box, the controller receives the temperature sensor signal, and the controller controls the status of the blower, the semiconductor refrigeration sheet and the alarm.

[0006] Preferably, the cold end of the semiconductor refrigeration plate is connected to the interior of the chamber and the hot end thereof is connected to the outside of the top end of the cold air box.

[0007] Preferably, a liquid inlet and a liquid discharge port are fixedly mounted on the top and bottom ends of the liquefied gas outer tank, respectively, and both the liquid inlet and the liquid discharge port lead to the interior of the liquefied gas inner tank.

[0008] Preferably, the sliding block is slidably connected to the inner wall of the liquefied gas inner tank.

[0009] Preferably, a power supply is fixedly installed inside the cold air box, and the power supply is electrically connected to the blower, semiconductor refrigeration sheet, controller, alarm, and temperature sensor through wires.

[0010] In summary, the technical effects and advantages of the utility model are:

[0011] In the utility model, the sliding block is driven by a hydraulic rod to move up and down inside the liquefied gas tank to monitor the temperature of different liquid levels. When the temperature sensor detects that the internal temperature exceeds the set threshold, the controller controls the alarm to alert the staff that the natural gas storage temperature is too high in the current environment and the site needs to be changed. At the same time, the controller controls the blower and the semiconductor refrigeration plate to turn on, the semiconductor refrigeration plate cools, and the cold air is sent into the spray pipe by the blower, and then is evenly sprayed onto the surface of the liquefied gas tank through the spray nozzle for cooling. Finally, the wind is discharged from the air outlet at the bottom, thereby realizing the monitoring and cooling of LNG storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0013] Figure 1 This is a structural schematic diagram of an LNG liquefied natural gas detection temperature alarm component in an embodiment of the present application;

[0014] Figure 2 This is a schematic diagram of the cold box structure of an LNG liquefied natural gas detection temperature alarm component in an embodiment of the present application.

[0015] In the figure: 1. liquefied gas outer tank; 2. liquefied gas inner tank; 3. annular cavity; 4. air spray pipe; 5. air spray nozzle; 6. cold air box; 7. air inlet mesh; 8. blower; 9. semiconductor refrigeration plate; 10. power supply; 11. air outlet; 12. controller; 13. alarm; 14. hydraulic rod; 15. temperature sensor; 16. sliding block; 17. liquid inlet; 18. liquid discharge port. DETAILED DESCRIPTION

[0016] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0017] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "top", "bottom", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0018] It should also be noted that the standard parts used in this application document can be purchased from the market, and can be customized according to the description in the specification and drawings. Unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, and it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in this disclosure can be understood according to the specific circumstances, and in the absence of clear limitations, machines, parts and equipment can all adopt conventional models in the prior art.

[0019] In this article, the term "comprising" is intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, the elements defined by the sentence "comprising..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0020] Example: Reference Figure 1-2The LNG liquefied natural gas detection temperature alarm component shown in the figure includes a cold air box 6, a controller 12, an alarm 13, an air jet pipe 4 and a temperature sensor 15, wherein the cold air box 6 is fixedly mounted on a liquefied gas outer tank 1, a liquefied gas inner tank 2 is sleeved inside the liquefied gas outer tank 1, an annular cavity 3 is arranged between the liquefied gas inner tank 2 and the liquefied gas outer tank 1, an air jet pipe 4 is fixedly mounted on the inner wall of the top end of the annular cavity 3, the bottom end of the air jet pipe 4 is connected with a plurality of evenly distributed air jets 5 facing the liquefied gas inner tank 2, a chamber is arranged inside the cold air box 6, an air inlet mesh port 7 is arranged on one side of the chamber, a blower 8 is fixedly mounted on the bottom end of the chamber, a semiconductor refrigeration plate 9 is fixedly mounted on the top end of the chamber, an output end of the blower 8 is connected with the air jet pipe 4, an air outlet 11 is connected at the bottom end of the annular cavity 3, a hydraulic rod 14 whose output end passes into the interior of the liquefied gas inner tank 2 is fixedly mounted on the top end of the liquefied gas inner tank 2, the liquid The output end of the pressure rod 14 drives the connected sliding block 16, on which a temperature sensor 15 is fixedly mounted, and a controller 12 and an alarm 13 are fixedly mounted on the outer wall of the cold air box 6, and the controller 12 receives the signal of the temperature sensor 15, and controls the status of the blower 8, the semiconductor refrigeration plate 9 and the alarm 13. The sliding block is driven by the hydraulic rod to move up and down inside the liquefied gas tank to monitor the temperature of different liquid levels. When the temperature sensor detects that the internal temperature exceeds the set threshold, the controller controls the alarm to alert the staff that the natural gas storage temperature is too high in the current environment and the site needs to be changed. At the same time, the controller controls the blower and the semiconductor refrigeration plate to turn on, and the semiconductor refrigeration plate is cooled. The cold air is sent into the spray pipe by the blower, and then evenly sprayed onto the surface of the liquefied gas tank through the spray nozzle for cooling. Finally, the wind is discharged from the air outlet at the bottom, thereby realizing the monitoring and cooling of LNG storage.

[0021] By means of the above structure, the cold end of the semiconductor cooling sheet 9 is connected to the interior of the chamber and the hot end thereof is connected to the outside of the top end of the cold air box 6 .

[0022] By means of the above structure: the top and bottom ends of the liquefied gas outer tank 1 are respectively fixedly mounted with a liquid inlet 17 and a liquid outlet 18, and the liquid inlet 17 and the liquid outlet 18 are both connected to the interior of the liquefied gas inner tank.

[0023] By means of the above structure, the sliding block 16 is slidably connected to the inner wall of the liquefied gas inner tank 2 .

[0024] With the above structure: a power source 10 is fixedly installed inside the cold air box 6, and the power source 10 is electrically connected to the blower 8, the semiconductor cooling sheet 9, the controller 12, the alarm 13, and the temperature sensor 15 through wires for power supply.

[0025] Finally, it should be noted that the above are only preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An LNG liquefied natural gas detection temperature alarm component, characterized in that: The invention comprises a cold air box (6), a controller (12), an alarm (13), an air jet pipe (4) and a temperature sensor (15), wherein the cold air box (6) is fixedly mounted on a liquefied gas outer tank (1), the interior of the liquefied gas outer tank (1) is sleeved with a liquefied gas inner tank (2), an annular cavity (3) is arranged between the liquefied gas inner tank (2) and the liquefied gas outer tank (1), an air jet pipe (4) is fixedly mounted on the inner wall of the top end of the annular cavity (3), the bottom end of the air jet pipe (4) is connected with a plurality of evenly distributed air jet nozzles (5) facing the liquefied gas inner tank (2), a chamber is arranged inside the cold air box (6), one side of the chamber is provided with an air inlet mesh port (7), a blower (8) is fixedly mounted on the bottom end of the chamber, and the chamber A semiconductor refrigeration sheet (9) is fixedly installed on the top of the cold air box (6); the output end of the blower (8) is connected to the air injection pipe (4); the bottom end of the annular cavity (3) is connected to an air outlet (11); the top of the liquefied gas inner tank (2) is fixedly installed with a hydraulic rod (14) whose output end passes into the interior thereof; the output end of the hydraulic rod (14) drives a sliding block (16) connected thereto; a temperature sensor (15) is fixedly installed on the sliding block (16); a controller (12) and an alarm (13) are fixedly installed on the outer wall of the cold air box (6); the controller (12) receives a signal from the temperature sensor (15); and the controller (12) controls the status of the blower (8), the semiconductor refrigeration sheet (9) and the alarm (13).

2. The LNG liquefied natural gas temperature detection alarm component according to claim 1, characterized in that: The cold end of the semiconductor refrigeration sheet (9) is connected to the interior of the chamber and the hot end is connected to the outside of the top end of the cold air box (6).

3. The LNG liquefied natural gas temperature detection alarm component according to claim 1, characterized in that: A liquid inlet (17) and a liquid outlet (18) are fixedly mounted at the top and bottom of the liquefied gas outer tank (1), respectively, and the liquid inlet (17) and the liquid outlet (18) both lead to the interior of the liquefied gas inner tank ().

4. The LNG liquefied natural gas temperature detection alarm component according to claim 1, characterized in that: The sliding block (16) is slidably connected to the inner wall of the liquefied gas inner tank (2).

5. The LNG liquefied natural gas temperature detection alarm component according to claim 1, characterized in that: A power source (10) is fixedly installed inside the cold air box (6), and the power source (10) is electrically connected to the blower (8), the semiconductor cooling plate (9), the controller (12), the alarm (13), and the temperature sensor (15) through wires.

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