Negative pressure fluid maintaining system and method for manufacturing negative pressure environment

Abstract

The invention discloses a negative-pressure fluid holding system and a method for manufacturing a negative-pressure environment by using the negative-pressure fluid holding system. The system includes a fluid holding chamber, at least three interfaces: a connection interface, a fluid input interface, and a negative pressure output interface, and a control valve and a sealing structure. The fluid retaining chamber is made of negative-pressure-resistant materials, and a sealing structure is arranged between connectors to maintain negative pressure stability. And the negative pressure output interface is provided with a pressure adjusting device. The control valve is used for accurately controlling fluid injection and negative pressure. The method for manufacturing the negative pressure environment comprises the steps of injecting a proper fluid medium into the system, closing the fluid input interface and the negative pressure output interface, connecting the connecting interface with a fluid pool below, forming negative pressure by using the principle that atmospheric pressure supports a water column, then opening the negative pressure output interface, and working by using the negative pressure formed in the system. And the injection amount of the fluid and the negative pressure are adjusted through the control valve. The system is simple in structure, convenient to operate and suitable for various industrial and scientific research applications.

Description

Technical Field

[0001] The present invention relates to a negative pressure fluid holding system, in particular to a system for forming and maintaining a negative pressure environment, which is applicable to various industrial and scientific research applications requiring negative pressure conditions. Background Art

[0002] In many industrial and scientific research fields, such as vacuum coating, semiconductor manufacturing, biomedical research, etc., precise control and maintenance of a negative pressure environment are required. Existing negative pressure systems often have problems such as complex structures, inconvenient operation, and high maintenance costs. Therefore, it is of great practical significance to develop a negative pressure fluid holding system with a simple structure, convenient operation, and low cost. Summary of the Invention

[0003] The object of the present invention is to provide a negative pressure fluid holding system that can stably form and maintain a negative pressure environment and has the advantages of a simple structure, convenient operation, and low cost.

[0004] Technical Solution

[0005] 1. Negative pressure fluid holding system: It includes a fluid holding chamber, which is designed to maintain structural integrity when a negative pressure is formed inside. The fluid holding chamber can be one or more chambers, cavities, or spaces; at least three different types of interfaces, which include at least one connection interface for connecting to an external fluid system, at least one fluid input interface for injecting fluid into the fluid holding chamber, and at least one negative pressure output interface for outputting the negative pressure formed in the fluid holding chamber.

[0006] 2. Connection interface: It is designed to be connected to a fluid pool. Fluid is placed in the fluid pool, and the connection interface is kept in the fluid in the fluid pool to form a negative pressure by utilizing the principle of atmospheric pressure supporting a water column.

[0007] 3. Sealing structure: A sealing structure is provided between the fluid holding chamber and each interface to maintain the stability of the negative pressure environment. The sealing structure includes, but is not limited to, an O-ring, a gasket, or sealant.

[0008] 4. Material: The material of the fluid holding chamber is a material that can withstand a negative pressure environment. The material includes, but is not limited to, metal, plastic, or composite material.

[0009] 5. Pressure regulating device: A pressure regulating device is provided at the negative pressure output interface for precisely controlling the magnitude of the output negative pressure. The pressure regulating device includes, but is not limited to, a valve, a pressure sensor, or an electronic control unit.

[0010] 6. Control valve: It also includes a control valve for controlling the opening and closing of the fluid input interface and the negative pressure output interface to precisely control the fluid injection volume and the magnitude of the negative pressure. The control valve includes, but is not limited to, manual valves, automatic valves, or intelligent control valves.

[0011] Method for creating a negative pressure environment

[0012] 1. Inject a suitable liquid medium into the appropriate interface among at least three interfaces of the negative pressure fluid holding system.

[0013] 2. Close the fluid input interface and the negative pressure output interface.

[0014] 3. Connect one end of the connection interface to the lower fluid pool, ensuring that the connection interface remains in the fluid in the fluid pool, and utilize the principle of atmospheric pressure supporting the water column to form a negative pressure.

[0015] 4. Close the connection interface.

[0016] 5. Open the negative pressure output interface and utilize the negative pressure formed inside the negative pressure fluid holding system for operation.

[0017] 6. Adjust the fluid injection volume and the magnitude of the negative pressure through the control valve to meet different application requirements. Description of the drawings

[0018] Appendix Figure 1 Is a schematic structural diagram of the fluid holding chamber, where:

[0019] · 1 is the fluid holding chamber

[0020] · 11 is the fluid input port

[0021] · 12 is the negative pressure output port

[0022] · 13 is the connection conduit

[0023] · 21, 22, 23 are control valves Detailed implementation manners

[0024] As Figure 1 Shown, the negative pressure fluid holding system of the present invention mainly includes a fluid holding chamber 1, a fluid input interface 11, a negative pressure output interface 12, a connection interface 13, and control valves 21, 22, 23. The fluid holding chamber is the core component of the system, and its design is for maintaining the structural integrity when a negative pressure is formed inside, and it can be one or more chambers, cavities, or spaces.

[0025] Fluid input interface 11

[0026] The fluid input interface 11 is used to inject fluid into the fluid holding chamber. This interface can be a manually controlled valve or an automatically controlled valve to adapt to different operating requirements. A sealing structure, such as an O-ring or gasket, is provided between the fluid input interface 11 and the fluid holding chamber to ensure that the fluid does not leak during injection, thereby maintaining the stability of the negative pressure environment.

[0027] Negative pressure output interface 12

[0028] The negative pressure output interface 12 is used to output the negative pressure formed in the fluid holding chamber. This interface can be connected to a device or system that requires a negative pressure environment. The negative pressure output interface 12 is provided with a pressure regulating device, such as a valve or a pressure sensor, for precisely controlling the magnitude of the output negative pressure. This enables the system to adjust the magnitude of the negative pressure according to different application requirements, thereby enhancing the applicability and flexibility of the system.

[0029] Connection interface 13

[0030] The connection interface 13 is used to connect to the lower fluid pool and form a negative pressure using the principle of atmospheric pressure supporting a water column. The connection interface 13 is kept in the fluid in the fluid pool to ensure that the system can form the required negative pressure environment using the atmospheric pressure difference. A sealing structure is also provided between the connection interface 13 and the fluid holding chamber to prevent leakage.

[0031] Control valves 21, 22, 23

[0032] The control valves 21, 22, 23 are respectively used to control the opening and closing of the fluid input interface 11, the negative pressure output interface 12, and the connection interface 13. These control valves can be manual valves, automatic valves, or intelligent control valves to adapt to different operating requirements and automation levels. Through precise control of the control valves, the injection volume of the fluid and the magnitude of the negative pressure can be precisely controlled, thereby achieving precise control of the negative pressure environment.

[0033] Method for creating a negative pressure environment

[0034] 1. Inject a suitable liquid medium, such as water or a specific fluid, into the fluid input interface 11.

[0035] 2. Close the fluid input interface 11 and the negative pressure output interface 12 to ensure that the system is in a closed state.

[0036] 3. Connect one end of the connection interface 13 to the lower fluid pool, ensuring that the connection interface 13 is kept in the fluid in the fluid pool, and form a negative pressure using the principle of atmospheric pressure supporting a water column.

[0037] 4. Close the connection interface 13 to ensure that a stable negative pressure environment is formed inside the system.

[0038] 5. Open the negative pressure output interface 12 and operate using the negative pressure formed inside the system by the negative pressure fluid.

[0039] 6. Adjust the injection volume of the fluid and the magnitude of the negative pressure through control valves 21, 22, and 23 to meet different application requirements.

Claims

1. A negative pressure fluid retention system for forming a negative pressure environment, characterized in that include: A fluid holding chamber, which is designed to maintain structural integrity when a negative pressure is formed inside the fluid holding chamber. The fluid holding chamber can be one or more chambers, cavities or spaces; at least three different types of interfaces, which include at least one connection interface for connecting to an external fluid system, at least one fluid input interface for injecting fluid into the fluid holding chamber, and at least one negative pressure output interface for outputting the negative pressure formed in the fluid holding chamber.

2. The negative pressure fluid retaining system according to claim 1, characterized in that: The connection interface is designed to be connected to a fluid pool, in which fluid is placed, and the connection interface is kept in the fluid in the fluid pool, so as to form negative pressure by utilizing the principle of atmospheric pressure supporting a water column. The negative pressure fluid retention system according to claim 1 is characterized in that a sealing structure is provided between the fluid retention chamber and each interface to maintain the stability of the negative pressure environment, and the sealing structure includes but is not limited to an O-ring, a gasket or a sealant.

3. The negative pressure fluid retaining system according to claim 1, characterized in that: The material of the fluid holding chamber is a material that can withstand a negative pressure environment, and the material includes but is not limited to metal, plastic or composite material.

4. The negative pressure fluid retaining system according to claim 1, characterized in that: The negative pressure output interface is provided with a pressure regulating device for accurately controlling the magnitude of the output negative pressure. The pressure regulating device includes but is not limited to a valve, a pressure sensor or an electronic control unit. The negative pressure fluid holding system according to claim 1 is characterized in that an observation window is provided on the fluid holding chamber to visually observe the internal fluid state, and the observation window includes but is not limited to a transparent material window or a video monitoring system. Fluid control valve system.

5. The negative pressure fluid retaining system according to claim 1, characterized in that: It also includes a control valve for controlling the opening and closing of the fluid input interface and the negative pressure output interface to accurately control the injection volume of the fluid and the size of the negative pressure. The control valve includes but is not limited to a manual valve, an automatic valve or an intelligent control valve.

6. A method for creating a negative pressure environment using the negative pressure fluid retention system according to any one of claims 1 to 5, characterized in that The method comprises the following steps: injecting a suitable liquid medium into a proper interface among at least three interfaces of the negative pressure fluid holding system; closing the fluid input interface and the negative pressure output interface; connecting one end of the connection interface to the fluid pool below to ensure that the connection interface remains in the fluid in the fluid pool, and forming negative pressure by using the principle of atmospheric pressure supporting a water column; and closing the connection interface; Open the negative pressure output interface and use the negative pressure fluid to maintain the negative pressure formed inside the system to work; adjust the fluid injection volume and negative pressure through the control valve to meet different application requirements.

Images