Degassing device
By introducing a combination structure of degassing membrane and pressure block, as well as a buffer tank, into the degassing device, the problem of gas entering the liquid circuit after negative pressure failure is solved, achieving efficient and stable degassing effect and simple installation and maintenance, thus reducing costs.
Patent Information
- Application Number
- CN202520133291.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-21
- Publication Date
- 2025-12-30
- Estimated Expiration
- 2035-01-21
AI Technical Summary
Existing degassing devices are prone to gas entering the liquid pipeline after negative pressure fails, resulting in unstable degassing performance. Furthermore, they are inconvenient to install and maintain, and the adhesive bonding method carries the risk of side effects.
The system adopts a combination structure of degassing membrane and pressure block, and adds a buffer tank. After the liquid enters the negative pressure chamber through the degassing membrane, it flows into the buffer tank. When the negative pressure fails, the gas is discharged to prevent it from entering the liquid circuit system. The sealing ring maintains the airtightness, simplifying installation and maintenance.
It achieves stable and efficient degassing performance, reduces costs, and simplifies the installation and maintenance process.
Smart Images
Figure CN223732169U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid detection, and in particular to a degassing device. Background Technology
[0002] Degassing devices typically degas through a breathable membrane, which is a thin film that allows air to pass through but not liquid. A negative pressure is applied to one side of the breathable membrane, while liquid flows through the other side. Air bubbles in the liquid pass through the breathable membrane into the negative pressure chamber, thereby achieving the degassing effect.
[0003] Existing liquid-inlet degassing devices primarily use degassing tubes, but two drawbacks have been observed: First, the connection between the degassing tube and the connector is difficult to handle; adhesive bonding occasionally results in detachment, and the side effects of adhesive contact with reagents are unpredictable. Excessive compression or deformation of the degassing tube and connector during installation can also cause localized micropore failure, leading to leakage during use. Second, the degassing tube in these devices is typically placed in a negative pressure chamber, with liquid flowing on one side and the other side in contact with the negative pressure gas. When the negative pressure disappears, the gas in the negative pressure chamber can instead pass through the degassing tube membrane into the tube. Due to the siphon effect of the liquid system or the flow of liquid by gravity, the gas outside the degassing tube is drawn into the tube and circulates within the liquid system, causing problems for subsequent testing. Utility Model Content
[0004] To address the aforementioned problems, this utility model provides a degassing device that overcomes the shortcomings of general degassing devices where gas easily enters the liquid pipeline after negative pressure loss. It offers efficient and stable degassing performance, is easy to install and maintain, and reduces costs.
[0005] The technical solution adopted in this utility model is as follows:
[0006] A degassing device includes a degassing base and a degassing cover plate that cooperates with the degassing base. At least one set of degassing components is provided in the degassing base and the degassing cover plate. Each set of degassing components includes a buffer pool disposed in the degassing base and a placement cavity above the buffer pool. A pressure block is placed in the placement cavity. A degassing membrane is provided between the pressure block and the degassing cover plate. A communication port communicating with the buffer pool is provided in the pressure block. A degassing flow channel is formed on the top of the pressure block. The inlet end of the degassing flow channel is connected to a liquid inlet. The outlet end of the degassing flow channel is connected to the communication port. A negative pressure ring channel corresponding to the degassing flow channel is formed at the bottom of the degassing cover plate. The negative pressure ring channel is connected to a negative pressure port.
[0007] Preferably, the liquid inlet is located on one side of the degassing base, and the side of the pressure block is provided with a liquid inlet hole that connects with the liquid inlet. The liquid inlet hole is connected to the degassing channel through a connecting hole.
[0008] Preferably, the communication port is located at the center of the pressure block, and at least one top opening communicating with the communication port is formed on the top of the pressure block. The degassing channel is annular, and the outlet end of the degassing channel is communicating with at least one top opening.
[0009] More preferably, the liquid inlet is connected to a liquid inlet connector.
[0010] Preferably, the outlet is located at the bottom of the buffer tank and is connected to an outlet connector.
[0011] Preferably, the negative pressure port is located on the side wall of the degassing cover plate, and the negative pressure port is connected to the negative pressure loop through the negative pressure flow channel.
[0012] More preferably, the negative pressure port is connected to a negative pressure connector.
[0013] Preferably, a first sealing ring is provided between the pressure block and the side wall of the placement cavity.
[0014] Preferably, a second sealing ring is provided between the degassing cover and the degassing base.
[0015] Compared with the prior art, the beneficial effects of this utility model are as follows: This utility model provides a degassing device that uses a degassing membrane for degassing. A flow channel is machined on the pressure block that contacts the degassing membrane, and a buffer tank is added. After degassing, the liquid flows into the buffer tank, and the liquid is drawn from the buffer tank by the liquid circuit system. This overcomes the disadvantage of general degassing devices where gas easily enters the liquid circuit after the negative pressure is lost. The degassing performance is highly efficient and stable, and the installation and maintenance are simple, reducing costs. Attached Figure Description
[0016] Figure 1 Internal cross-section of a degassing device provided by this utility model Figure 1 .
[0017] Figure 2 Internal cross-section of a degassing device provided by this utility model Figure 2 .
[0018] Figure 3 This is a schematic diagram of the structure of the pressure block in a degassing device provided by this utility model.
[0019] Figure 4 A top view of the pressure block in a degassing device provided by this utility model. Detailed Implementation
[0020] The preferred embodiments of this utility model will be described in detail with reference to the accompanying drawings.
[0021] Figures 1 to 4This is a preferred embodiment of a degassing device provided by the present invention. The degassing device includes a degassing base 10 and a degassing cover plate 20 that cooperates with the degassing base 10. At least one set of degassing components 30 is provided within the degassing base 10 and the degassing cover plate 20. Each set of degassing components 30 includes a buffer tank 31 disposed within the degassing base. The buffer tank 31 is connected to a liquid outlet 35. A placement cavity 32 is provided above the buffer tank 31. A pressure block 33 is placed within the placement cavity 32 of the buffer tank 31. A degassing membrane 34 is provided between the pressure block 33 and the degassing cover plate 20. Block 33 has a connecting port 331 that communicates with the buffer pool 31. A degassing channel 332 is formed on the top of the block 33. The inlet end of the degassing channel 332 communicates with the liquid inlet 36, and the outlet end of the degassing channel communicates with the connecting port 331. A negative pressure ring channel 21 corresponding to the degassing channel 332 is formed at the bottom of the degassing cover plate 20. The negative pressure ring channel 21 is connected to a negative pressure port 22. Thus, liquid enters the degassing channel 332 on the top of the block 33 through the liquid inlet 36, and the negative pressure port... 22 connects to the external negative pressure tank and negative pressure generating component, so that the negative pressure ring corresponding to the degassing channel 332 forms a negative pressure chamber. One side of the degassing membrane 34 is the degassing channel 332, and the other side corresponds to the negative pressure chamber. Air bubbles in the liquid enter the negative pressure chamber through the permeable membrane, thereby achieving the degassing effect. After degassing, the liquid enters the buffer tank 31 through the connecting port 331 and finally flows out from the liquid outlet 35. When the negative pressure tank loses pressure, only a thin layer on the top of the pressure block 33 will be filled with gas and will not enter the buffer tank 31. Even if there are air bubbles in the buffer tank 31, they will expand in volume and float up under the action of negative pressure, and will be discharged when they reach the degassing membrane 34. When the negative pressure tank is reloaded with negative pressure, the liquid flows into the degassing device through the liquid inlet 36 under the action of negative pressure, and discharges the gas on the top of the pressure block 33 into the waste liquid tank through the degassing membrane 34. This overcomes the disadvantage of gas easily entering the liquid pipeline after the negative pressure of the general degassing device loses pressure. The degassing performance is efficient and stable, the installation and maintenance are simple, and the cost is reduced.
[0022] The liquid inlet 36 is located on one side of the degassing base 10, and the pressure block 33 has a liquid inlet hole 333 on one side that mates with the liquid inlet 36. The liquid inlet hole 333 is connected to the degassing channel 332 through a connecting hole 334. Liquid enters the degassing channel 332 from the liquid inlet 36, the liquid inlet hole 33, and the connecting hole 334. The liquid inlet 36 is fitted with a liquid inlet connector 40 for easy liquid intake.
[0023] The connecting port 331 is located at the center of the pressing block, and at least one top opening 335 is formed on the top of the pressing block 33, which communicates with the connecting port 331. The degassing channel 332 is annular, and the outlet end of the degassing channel 332 communicates with at least one top opening 335.
[0024] The liquid outlet 35 is located at the bottom of the buffer tank 31, thus completely isolating it from gas. When the negative pressure tank loses pressure, external gas will not enter the liquid pipeline. The liquid outlet 35 is connected to a liquid outlet connector 50 for convenient liquid discharge.
[0025] The negative pressure port 22 is located on the side wall of the degassing cover plate 20. The negative pressure port 22 is connected to the negative pressure ring channel 21 via the negative pressure flow channel 23. The negative pressure tank generates negative pressure, causing air in the liquid within the degassing flow channel 332 to pass through the degassing membrane 34, and then through the negative pressure ring channel 21 and the negative pressure flow channel 23 into the negative pressure tank. The negative pressure port 22 is fitted with a negative pressure connector 60 for easy connection to the negative pressure tank and the negative pressure generating component. The negative pressure tank and the negative pressure generating component are auxiliary components, not included in the degassing device, and only provide negative pressure to the degassing device.
[0026] A first sealing ring 37 is provided between the pressure block 33 and the side wall of the placement cavity 32 to prevent liquid entering from the inlet 36 from directly entering the buffer tank 31. A second sealing ring 11 is provided between the degassing cover 20 and the degassing base 10 to maintain airtightness and prevent negative pressure failure.
[0027] In summary, the technical solution of this utility model can fully and effectively achieve the aforementioned objectives. Furthermore, the structure and functional principles of this utility model have been fully verified in the embodiments, achieving the expected effects and objectives. Without departing from the principles and essence of this utility model, various changes or modifications can be made to the embodiments. Therefore, this utility model includes all substitutions within the scope mentioned in the patent application claims, and any equivalent changes made within the scope of this patent application are within the scope of the patent application.
Claims
1. A degassing device, characterized in that, The device comprises a degassing base and a degassing cover plate matched with the degassing base, and at least one set of degassing components is arranged in the degassing base and the degassing cover plate; each set of degassing components comprises a buffer pool arranged in the degassing base and a placing cavity above the buffer pool, a pressing block is arranged in the placing cavity, a degassing film is arranged between the pressing block and the degassing cover plate, a communication port is arranged in the pressing block and communicated with the buffer pool, a degassing flow channel is formed in the top of the pressing block, the inlet end of the degassing flow channel is communicated with a liquid inlet, the outlet end of the degassing flow channel is communicated with the communication port, and a negative pressure ring channel corresponding to the degassing flow channel is formed in the bottom of the degassing cover plate, and the negative pressure ring channel is communicated with a negative pressure port.
2. The degassing device of claim 1, wherein: The liquid inlet is arranged on one side of the degassing base, one side of the pressing block is provided with a liquid inlet hole matched with the liquid inlet, and the liquid inlet hole is communicated with the degassing flow channel through a communication hole.
3. The degassing device of claim 2, wherein: The communication port is arranged in the center of the pressing block, at least one top opening communicated with the communication port is formed in the top of the pressing block, the degassing flow channel is annular, and the outlet end of the degassing flow channel is communicated with the at least one top opening.
4. The degassing device of claim 1, wherein: The liquid inlet is matched with a liquid inlet connector.
5. The degassing device of claim 1, wherein: The buffer pool is communicated with a liquid outlet, the liquid outlet is arranged at the bottom of the buffer pool, and the liquid outlet is matched with a liquid outlet connector.
6. The degassing device of claim 1, wherein: The negative pressure port is arranged on the side wall of the degassing cover plate, and the negative pressure port is communicated with the negative pressure ring channel through a negative pressure flow channel.
7. The degassing device of claim 6, wherein: The negative pressure port is matched with a negative pressure connector.
8. The degassing device of claim 1, wherein: A first sealing ring is arranged between the pressing block and the side wall of the placing cavity.
9. The degassing device of claim 1, wherein: A second sealing ring is arranged between the degassing cover plate and the degassing base.