Liquefied gas uninterrupted supply system

Abstract

The utility model relates to the field of fuel gas. A liquefied gas uninterrupted supply system comprises a first liquefied gas steel cylinder, a second liquefied gas steel cylinder and a three-way valve, a first port of the three-way valve is connected with the first liquefied gas steel cylinder through a first pipeline, and a second port of the three-way valve is connected with the second liquefied gas steel cylinder through a second pipeline. And a third port of the three-way valve is connected with a gas pipeline through a third pipeline. After the first liquefied gas steel cylinder is used up, a user can select the switching three-way valve to switch the three-way valve to the second liquefied gas steel cylinder to be communicated with the gas pipeline and cut off the first liquefied gas steel cylinder, so that the second liquefied gas steel cylinder realizes uninterrupted gas supply when the first liquefied gas steel cylinder is taken to a gas supply station for gas filling.

Description

Technical Field

[0001] This utility model relates to the field of gas, specifically an integrated gas system. Background Technology

[0002] After use, existing liquefied petroleum gas (LPG) cylinders must first be disconnected from the gas stove, then taken to a gas station for refilling, and finally returned to the point of use to reconnect the gas line. This presents the following problems: 1. The need to disconnect and reconnect the gas line twice can easily cause gas leaks; 2. When taking the cylinder to the refilling station, the customer may find themselves temporarily without gas. Utility Model Content

[0003] The purpose of this invention is to provide an uninterrupted liquefied gas supply system to solve at least one of the problems mentioned in the background art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A liquefied petroleum gas (LPG) uninterrupted supply system is characterized by comprising a first LPG cylinder, a second LPG cylinder, and a three-way valve, wherein the first port of the three-way valve is connected to the first LPG cylinder via a first pipeline, the second port of the three-way valve is connected to the second LPG cylinder via a second pipeline, and the third port of the three-way valve is connected to a gas pipeline via a third pipeline.

[0006] Method 1: When the gas volume of the first liquefied petroleum gas cylinder is insufficient, the user can choose to switch the three-way valve to connect the second liquefied petroleum gas cylinder with the first liquefied petroleum gas cylinder, thereby using the second liquefied petroleum gas cylinder to replenish the gas in the first liquefied petroleum gas cylinder.

[0007] Method 2: After the first LPG cylinder is used up, the user can choose to switch the three-way valve to connect the second LPG cylinder to the gas pipeline and disconnect the first LPG cylinder. This way, when the user takes the first LPG cylinder to the gas supply station for refilling, the second LPG cylinder can provide uninterrupted gas supply.

[0008] Preferably, a first pressure gauge is installed on the first pipeline, and a second pressure gauge is installed on the second pipeline. This allows the user to obtain the current pressure of the first and second liquefied petroleum gas (LPG) cylinders using the first and second pressure gauges, respectively, and then determine the remaining LPG level based on the pressure readings.

[0009] As a preferred embodiment, the first and second pressure gauges are communicatively connected to a control terminal, and the three-way valve is a three-way solenoid valve, which is controlled and connected by the control terminal. This invention selects a specific type of three-way valve and, by adding a control terminal, automatically switches the three-way solenoid valve based on the remaining LPG levels in the first and second LPG cylinders, eliminating the need for manual switching by the user, thus making the process more timely and efficient. Furthermore, software can be installed within the control terminal to send a refill notification to the gas supply station, allowing station staff to bring a fully filled replacement cylinder to the user, saving the user the hassle of carrying an empty cylinder to the gas supply station for refilling.

[0010] As another preferred embodiment, a first gas ball valve is provided on the first pipeline, and a second gas ball valve is provided on the second pipeline. The first and second pressure gauges are communicatively connected to a control terminal, which controls the first and second gas ball valves. This invention adds gas ball valves and a control terminal. In use, the control terminal can automatically open and close the gas ball valves based on the remaining LPG levels in the first and second LPG cylinders, eliminating the need for manual switching of the three-way valve by the user, thus making it more timely and efficient. Furthermore, software can be installed in the control terminal to send a gas replenishment notification to the gas supply station, allowing station staff to bring a fully filled replacement cylinder to the user, saving the user the hassle of carrying an empty cylinder to the gas supply station for refilling.

[0011] Preferably, it also includes a gas leak detection alarm device, wherein the gas leak detection alarm device is located at a distance of more than 200mm from the ground. This utility model adds a gas leak detection alarm device, which can detect gas leaks and promptly identify gas leaks caused by unplugging or disconnecting gas pipes, thereby ensuring gas safety.

[0012] Preferably, an emergency shut-off valve is installed on the third pipeline, and the gas leak detection alarm device is directly connected to or controlled by a control terminal to the emergency shut-off valve. This ensures that the gas pipeline is shut off promptly in the event of a gas leak.

[0013] Preferably, the system also includes a gas supply cabinet, with the first and second LPG cylinders located inside the cabinet, and the gas pipeline located outside the cabinet. This isolates the LPG cylinders from the gas stove, further improving gas safety.

[0014] Preferably, the device also includes a food cart, which is equipped with a table that divides the space of the food cart into upper and lower spaces. The space below the table serves as the gas supply cabinet. The first and second liquefied petroleum gas cylinders are located below the table, and a gas stove is fixed above the table.

[0015] Preferably, the gas supply cabinet has ventilation openings, and a fan is installed at each ventilation opening. This allows air to circulate inside the gas supply cabinet, which on the one hand reduces the temperature inside the gas supply cabinet, and on the other hand ensures the safety of gas usage.

[0016] Preferably, there is at least one first LPG cylinder and at least one second LPG cylinder, with the first LPG cylinders arranged side-by-side on one side of the gas supply cabinet and the second LPG cylinders arranged side-by-side on the other side of the gas supply cabinet, with a gap between the two rows of LPG cylinders. This facilitates movement for users or power station staff to replace cylinders or repair parts. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of one embodiment of the present invention. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0019] The uninterrupted LPG supply system includes a first LPG cylinder 11, a second LPG cylinder 21, and a three-way valve 3. The first port of the three-way valve 3 is connected to the first LPG cylinder 11 via a first pipeline 12, the second port of the three-way valve 3 is connected to the second LPG cylinder 21 via a second pipeline 22, and the third port of the three-way valve 3 is connected to a gas pipeline via a third pipeline. Usage method 1: When the LPG supply in the first LPG cylinder 11 is insufficient, the user can switch the three-way valve 3 to connect the second LPG cylinder 21 to the first LPG cylinder 11, thereby replenishing the first LPG cylinder 11 with gas from the second LPG cylinder 21. Method 2: After the first liquefied gas cylinder 11 is used up, the user can choose to switch the three-way valve to connect the second liquefied gas cylinder 21 to the gas pipeline and disconnect the first liquefied gas cylinder 11. Thus, when taking the first liquefied gas cylinder 11 to the gas supply station for refilling, the second liquefied gas cylinder 21 can achieve uninterrupted gas supply.

[0020] Preferably, a first pressure gauge 13 is provided on the first pipeline 12, and a second pressure gauge is provided on the second pipeline 22. This allows the user to obtain the current pressure of the first liquefied petroleum gas cylinder 11 and the second liquefied petroleum gas cylinder 21 through the first pressure gauge 13 and the second pressure gauge, respectively, and then determine the remaining liquefied petroleum gas level based on the pressure. Specific Implementation Example 1

[0022] The first pressure gauge 13 and the second pressure gauge 23 are communicatively connected to the control terminal. The three-way valve is a three-way solenoid valve, and the control terminal controls and connects to the three-way solenoid valve. This invention selects a specific type of three-way valve and adds a control terminal. During use, the control terminal can automatically switch the three-way solenoid valve according to the remaining liquefied gas levels in the first liquefied gas cylinder 11 and the second liquefied gas cylinder 21, eliminating the need for manual switching by the user, thus making it more timely and efficient. Furthermore, software can be installed in the control terminal to send a gas replenishment notification to the gas supply station, allowing gas station staff to directly bring a full replacement cylinder to the user's location, saving the user the hassle of carrying an empty cylinder to the gas supply station for refilling. Specific Implementation Example 2

[0024] A first gas ball valve is installed on the first pipeline 12, and a second gas ball valve is installed on the second pipeline 22. The first gas pressure gauge 13 and the second gas pressure gauge 23 are communicatively connected to a control terminal, which in turn controls the first gas ball valve 14 and the second gas ball valve 24. This invention adds gas ball valves and a control terminal. During use, the control terminal can automatically open and close the gas ball valves based on the remaining LPG levels in the first LPG cylinder 11 and the second LPG cylinder 21, eliminating the need for manual switching of the three-way valve by the user, thus making it more timely and efficient. Furthermore, software can be installed in the control terminal to send a gas replenishment notification to the gas supply station, allowing gas station staff to directly bring a full replacement cylinder to the user's location, saving the user the hassle of carrying an empty cylinder to the gas supply station for refilling. The first gas ball valve 14 and the first gas pressure gauge 13 can share a common housing. The second gas ball valve 24 and the second gas pressure gauge 23 can also share a common housing, thus simplifying installation and reducing the number of components.

[0025] In both embodiments described above, a gas leak detection alarm device is also included, with the device positioned more than 200mm above the ground. This invention adds a gas leak detection alarm device, which can detect gas leaks and promptly identify leaks caused by unplugging or disconnecting the gas pipeline, thus ensuring gas safety. Alternatively, an emergency shut-off valve can be installed on the third pipeline, and the gas leak detection alarm device can be directly connected to or controlled via a control terminal to the emergency shut-off valve. This allows for timely shut-off of the gas pipeline in the event of a gas leak.

[0026] In both embodiments described above, a gas supply cabinet is also included. The first liquefied petroleum gas (LPG) cylinder 11 and the second LPG cylinder 21 are located inside the gas supply cabinet, while the gas pipeline is located outside. This isolates the LPG cylinders from the gas stove, further improving gas safety. Alternatively, a dining cart may also be included. The dining cart has a counter that divides the space into upper and lower sections. The space below the counter serves as the gas supply cabinet, with the first LPG cylinder 11 and the second LPG cylinder 21 located below the counter. A gas stove is fixed above the counter. The gas supply cabinet can also be a mobile home, etc. Ventilation openings are provided on the gas supply cabinet, and fans are installed at these openings. This allows air circulation within the gas supply cabinet, reducing the temperature inside and ensuring gas safety. Preferably, there is at least one first LPG cylinder 11 and at least one second LPG cylinder 21. The first LPG cylinders 11 are arranged side by side on one side of the gas supply cabinet, and the second LPG cylinders 21 are arranged side by side on the other side of the gas supply cabinet, with a gap between the two rows of LPG cylinders. This facilitates movement for users or power station staff to replace cylinders or repair parts.

[0027] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0028] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A system for the uninterrupted supply of liquefied gas, characterized in that The utility model provides a kind of gas supply device, including first liquefied gas cylinder, second liquefied gas cylinder, three-way valve, the first port of the three-way valve is connected by first pipeline the first liquefied gas cylinder, the second port of the three-way valve is connected by second pipeline the second liquefied gas cylinder, the third port of the three-way valve is connected by third pipeline gas pipeline.

2. The system according to claim 1, wherein First gas pressure gauge is equipped on the first pipeline, and second gas pressure gauge is equipped on the second pipeline.

3. The system of claim 2, wherein, The first gas pressure gauge, the second gas pressure gauge are connected with control terminal in communication, the three-way valve is three-way electromagnetic valve, and the control terminal is connected with the three-way electromagnetic valve.

4. The system of claim 2, wherein, First gas ball valve is equipped on the first pipeline, and second gas ball valve is equipped on the second pipeline, and the first gas pressure gauge, the second gas pressure gauge are connected with control terminal in communication, and the control terminal is connected with the first gas ball valve and the second gas ball valve.

5. A system according to any one of claims 1-4, c h a r a c t e r i s e d in that Further include gas leakage detection alarm device, the distance from ground of the gas leakage detection alarm device is greater than 200mm.

6. The system of claim 5, wherein, Emergency shut-off valve is equipped on the third pipeline, and the gas leakage detection alarm device is directly connected with the emergency shut-off valve or is connected with the emergency shut-off valve by control terminal.

7. A system according to any one of claims 1 to 4, wherein the system further comprises a pressure relief valve (30) arranged to open when the pressure in the tank (2) exceeds a predetermined value. Further include gas supply cabinet, and the first liquefied gas cylinder and the second liquefied gas cylinder are located in the gas supply cabinet, and the gas pipeline is located outside the gas supply cabinet.

8. The system of claim 7, wherein, Further include dining car, and the dining car is provided with dining table, and the dining table divides the space of the dining car into two spaces, and the space below the dining table is used as the gas supply cabinet, and the first liquefied gas cylinder and the second liquefied gas cylinder are located below the dining table, and gas stove is fixed above the dining table.

9. The system of claim 7, wherein: Ventilation opening is opened on the gas supply cabinet, and fan is arranged at the ventilation opening.

10. The system of claim 7, wherein, The first liquefied gas cylinder is at least one, and the second liquefied gas cylinder is at least one, each first liquefied gas cylinder is arranged side by side on one side of the gas supply cabinet, each second liquefied gas cylinder is arranged side by side on the other side of the gas supply cabinet, and gap is arranged between the two rows of liquefied gas cylinders.

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