Storage device for carbon dioxide fire extinguishing agent production

Abstract

The utility model relates to the technical field of carbon dioxide fire extinguishing agent storage, and discloses a storage device for carbon dioxide fire extinguishing agent production, which comprises a storage tank and an auxiliary tank, the auxiliary tank is arranged below the side edge of the storage tank, the bottom of the storage tank is communicated with the bottom of the auxiliary tank through a guide pipe, and a first valve is mounted on the guide pipe. An inflation pipe is connected below the front end of the auxiliary tank, a second valve is installed on the inflation pipe, a first rotating disc is installed on a rotating shaft of the first valve, and a second rotating disc is installed on a rotating shaft of the second valve. According to the technical scheme, the auxiliary tank is arranged as a buffer tank body and is communicated with the storage tank through the guide pipe, when the fire extinguisher is inflated, part of liquid carbon dioxide is firstly inflated into the auxiliary tank, then the auxiliary tank is disconnected from the storage tank, the auxiliary tank is independently used for inflating, the isolating and buffering effects are achieved, and the fire extinguisher is prevented from being damaged. Potential safety hazards caused by the fact that the storage tank is directly connected to the fire extinguisher for inflation can be avoided.

Description

Technical Field

[0001] This utility model relates to the field of carbon dioxide fire extinguishing agent storage technology, specifically a storage device for the production of carbon dioxide fire extinguishing agents. Background Technology

[0002] The main component of carbon dioxide fire extinguishing agent is liquid carbon dioxide. Carbon dioxide fire extinguishing agent is a fire extinguishing agent with a history of more than 100 years. It mainly relies on suffocation and partial cooling to extinguish fires. Carbon dioxide has a high density, about 1.5 times that of air. Under normal pressure, liquid carbon dioxide will vaporize immediately. Generally, 1 kg of liquid carbon dioxide can produce about 0.5 cubic meters of gas. Therefore, when extinguishing a fire, carbon dioxide gas can displace air and surround the surface of the burning object or be distributed in a relatively confined space, reducing the oxygen concentration around the combustible material or in the protected space, thus producing a suffocation effect and extinguishing the fire. In addition, when carbon dioxide is sprayed from the storage container, it will rapidly vaporize from liquid to gas and absorb some heat from the surroundings, playing a cooling role.

[0003] Liquid carbon dioxide is stored in large storage tanks with high internal pressure. When filling fire extinguishers, the extinguishers are directly connected to the large storage tanks, making it easy for the pipes to detach due to excessive pressure, leading to leaks and posing a safety hazard. Therefore, we propose a storage device for the production of carbon dioxide fire extinguishing agents. Utility Model Content

[0004] The purpose of this invention is to provide a storage device for the production of carbon dioxide fire extinguishing agent. By setting up an auxiliary tank as a buffer tank and connecting it to the storage tank through a conduit, when the fire extinguisher is being filled, some liquid carbon dioxide is first filled into the auxiliary tank. Then the connection between the auxiliary tank and the storage tank is disconnected, and the auxiliary tank is used alone for filling. This has an isolation and buffering effect, which can avoid the safety hazards that exist when the storage tank is directly connected to the fire extinguisher for filling, and solves the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a storage device for producing carbon dioxide fire extinguishing agent, comprising a storage tank and an auxiliary tank, wherein the auxiliary tank is disposed below the side of the storage tank, and the bottom of the storage tank and the bottom of the auxiliary tank are connected by a conduit; a first valve is installed on the conduit, an inflation pipe is connected to the lower front end of the auxiliary tank, a second valve is installed on the inflation pipe, a first turntable is installed on the rotating shaft of the first valve, and a second turntable is installed on the rotating shaft of the second valve.

[0006] By adopting the above technical solution, the auxiliary tank is used as a buffer tank. Before filling, some liquid carbon dioxide is injected into the auxiliary tank, and then the connection between the auxiliary tank and the storage tank is disconnected. Thus, the fire extinguisher is filled with gas through the auxiliary tank alone, which has higher safety.

[0007] Optionally, a locking rod is vertically fixed on the rotating shaft of the first valve, and two uprights are vertically fixed on the side of the second rotating disc of the second valve. When the second valve is closed and the first valve is opened, the locking rod is engaged between the two uprights.

[0008] By adopting the above technical solution, the second valve cannot be opened for inflation when the first valve is opened, thus preventing the auxiliary tank from connecting with the storage tank during inflation.

[0009] Optionally, the first valve is opened when the first turntable rotates clockwise, and closed when the first valve rotates counterclockwise.

[0010] By adopting the above technical solution, the first turntable rotates clockwise, ensuring that the locking rod is locked between the two uprights.

[0011] Optionally, the first valve has a rotation stroke of 90 degrees.

[0012] By adopting the above technical solution, when the first valve is opened, the lever is in a vertical position.

[0013] Optionally, a connecting pipe is provided on the upper side of the storage tank, and the connecting pipe is connected to the storage tank.

[0014] By adopting the above technical solution, liquid carbon dioxide can be injected into the storage tank through the connecting pipe, or a pressure gauge can be installed.

[0015] Optionally, both the storage tank and the auxiliary tank are supported and fixed above the base.

[0016] By adopting the above technical solution, the base is used to support the storage tank and the auxiliary tank.

[0017] Compared with the prior art, the beneficial effects of the technical solution of this application are as follows:

[0018] 1. The technical solution of this application sets up an auxiliary tank as a buffer tank, which is connected to the storage tank through a conduit. When the fire extinguisher is being filled, some liquid carbon dioxide is first filled into the auxiliary tank. Then the connection between the auxiliary tank and the storage tank is disconnected, and the auxiliary tank is used alone for filling. This has an isolation and buffering effect, which can avoid the safety hazards that exist when the storage tank is directly connected to the fire extinguisher for filling.

[0019] 2. The technical solution of this application provides a locking rod on the side of the first valve's rotating shaft and a vertical rod on the surface of the second valve's rotating disc. When the second valve is closed and the first valve is open, the locking rod will be placed between the vertical rods to restrict the rotation and opening of the second rotating disc and the second valve, thus preventing the second valve from being opened and pressurized without disconnecting the connection between the auxiliary tank and the storage tank. Attached Figure Description

[0020] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0021] Figure 1 This is a schematic diagram of the overall structure of the storage device for producing carbon dioxide fire extinguishing agent according to this utility model.

[0022] Figure 2 This utility model relates to a storage device for the production of carbon dioxide fire extinguishing agent. Figure 1 Detailed structural diagram of point A in the diagram;

[0023] Figure 3 This is a schematic diagram of the structure of the storage device for producing carbon dioxide fire extinguishing agent according to this utility model when the first valve is open.

[0024] In the diagram: 1. Storage tank; 11. Connecting pipe; 2. Secondary tank; 3. Conduit; 31. First valve; 32. First turntable; 4. Air filling pipe; 41. Second valve; 42. Second turntable; 421. Upright pole; 5. Base; 6. Rotating shaft; 61. Locking rod. Detailed Implementation

[0025] Please see Figure 1-3 This utility model provides a technical solution: a storage device for the production of carbon dioxide fire extinguishing agent, including a storage tank 1 and an auxiliary tank 2. The auxiliary tank 2 is located below the side of the storage tank 1. Both the storage tank 1 and the auxiliary tank 2 are supported and fixed on the top of the base 5. A connecting pipe 11 is provided on the upper side of the storage tank 1. The connecting pipe 11 is connected to the storage tank 1. The connecting pipe 11 is used to connect liquid carbon dioxide supply pipelines and pressure gauges and other equipment. After liquid carbon dioxide is injected into the storage tank 1 through the connecting pipe 11, the connecting pipe 11 needs to be sealed by a valve.

[0026] The bottom of storage tank 1 and the bottom of auxiliary tank 2 are connected by a conduit 3. A first valve 31 is installed on the conduit 3, and a first turntable 32 is installed on the shaft 6 of the first valve 31. When in use, the first valve 31 is opened to inject some of the liquid carbon dioxide in storage tank 1 into the interior of auxiliary tank 2. After that, the first valve 31 can be closed, and auxiliary tank 2 can be used as a buffer tank.

[0027] The lower front end of the auxiliary tank 2 is connected to an inflation pipe 4. A second valve 41 is installed on the inflation pipe 4. A second turntable 42 is installed on the rotating shaft 6 of the second valve 41. When inflation, the first valve 31 needs to be kept closed. The inflation pipe 4 is connected to the inflation tube 4. After connecting to the fire extinguisher, the second valve 41 is opened to inflate the fire extinguisher. The pressure gauge on the fire extinguisher can be used to determine whether inflation is complete. The inflation speed can also be used to determine whether the liquid carbon dioxide inside the auxiliary tank 2 is sufficient. When the liquid carbon dioxide in the auxiliary tank 2 is insufficient, the first valve 31 is opened again to continue to replenish the liquid carbon dioxide in the auxiliary tank 2.

[0028] Since the opening and closing of the first valve 31 is manually operated, it is easy for the first valve 31 to be open while the second valve 41 is being opened for inflation. In this case, the auxiliary tank 2 loses its buffering function. To avoid this phenomenon, a locking rod 61 is vertically fixed on the rotating shaft 6 of the first valve 31. When the locking rod 61 is in the vertical position, the first valve 31 is in the closed position. Two upright rods 421 are vertically fixed on the side of the second rotating disc 42 of the second valve 41. The rotation stroke of the first valve 31 is 90 degrees, and the second valve 41... 1. When not inflated, the valve will always be in a closed state. When the first valve 31 is opened by rotating the first turntable 32 90 degrees clockwise, the locking lever 61 will be locked between the two uprights 421. This ensures that when the first valve 31 is in the open state, the second turntable 42 of the second valve 41 cannot be rotated to open the second valve 41, thus avoiding the above phenomenon. The first turntable 32 needs to drive the first valve 31 to rotate counterclockwise to close it. After the locking lever 61 is removed from between the two uprights 421, the second valve 41 can be opened normally for inflation.

[0029] In use, the connecting pipe 11 is used to connect to equipment such as a pressure gauge and a carbon dioxide injection pipeline. The connecting pipe 11 is blocked so that the liquefied carbon dioxide is stored inside the storage tank 1. In the initial state, both the first valve 31 and the second valve 41 are closed. When it is necessary to refill the fire extinguisher with carbon dioxide, the filling pipe 4 is connected to the filling pipeline. First, the first turntable 32 is rotated clockwise to open the first valve 31, so that the liquid carbon dioxide in the storage tank 1 is filled into the auxiliary tank 2. At this time, the locking lever 61 is also rotated clockwise and locked between the two uprights 421, so that the second valve 41 cannot be rotated to open. Only when the first valve 31 is closed again by rotating counterclockwise and the connection between the auxiliary tank 2 and the storage tank 1 is disconnected, can the second valve 41 be opened by rotating the second turntable 42 to refill the fire extinguisher. After the refilling is completed, the second valve 41 is closed again. When the liquid carbon dioxide in the auxiliary tank 2 is insufficient, the first valve 31 is opened again in the same way to replenish the liquid carbon dioxide in the auxiliary tank 2.

Claims

1. A storage device for producing carbon dioxide fire extinguishing agent, comprising a storage tank (1) and a secondary tank (2), characterized in that: The auxiliary tank (2) is located below the side of the storage tank (1), and the bottom of the storage tank (1) and the bottom of the auxiliary tank (2) are connected by a conduit (3); A first valve (31) is installed on the conduit (3), an air filling pipe (4) is connected to the lower front end of the auxiliary tank (2), a second valve (41) is installed on the air filling pipe (4), a first turntable (32) is installed on the shaft (6) of the first valve (31), and a second turntable (42) is installed on the shaft (6) of the second valve (41).

2. The storage device for producing carbon dioxide fire extinguishing agent according to claim 1, characterized in that: A locking rod (61) is vertically fixed on the shaft (6) of the first valve (31), and two upright rods (421) are vertically fixed on the side of the second turntable (42) of the second valve (41). When the second valve (41) is closed and the first valve (31) is opened, the locking rod (61) is locked between the two upright rods (421).

3. The storage device for producing carbon dioxide fire extinguishing agent according to claim 2, characterized in that: The first valve (31) is opened when the first turntable (32) is rotated clockwise, and closed when the first valve (31) is rotated counterclockwise.

4. The storage device for producing carbon dioxide fire extinguishing agent according to claim 3, characterized in that: The first valve (31) has a rotation stroke of 90 degrees.

5. The storage device for producing carbon dioxide fire extinguishing agent according to claim 1, characterized in that: A connecting pipe (11) is provided on the upper side of the storage tank (1), and the connecting pipe (11) is connected to the storage tank (1).

6. The storage device for producing carbon dioxide fire extinguishing agent according to claim 1, characterized in that: Both the storage tank (1) and the auxiliary tank (2) are supported and fixed above the base (5).

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