Buffer device and gas delivery system

Abstract

The utility model discloses a buffer device and a gas conveying system. A buffer cavity of a buffer container contains compressed air, a gas-liquid separation assembly connected with the buffer container and located in the buffer cavity separates liquid in the compressed air, and the possibility that the liquid is conveyed out of the buffer cavity along with the compressed air is reduced. The liquid level detection assembly is connected with the buffer container and used for detecting the liquid level of the liquid in the buffer cavity, and when the liquid level height in the buffer cavity reaches the discharging height, the liquid is discharged out of the buffer container from the input port of the drainage valve through the drainage valve from the bottom of the buffer cavity. When the liquid reaches the discharge height, the liquid is discharged, compressed air contained in the liquid subjected to gas-liquid separation is less, the liquid contained in the compressed air can be reduced, and the situation that a large amount of compressed air is discharged is avoided while the liquid is discharged regularly. The problem that the loss of compressed air is large when liquid in the compressed air is separated and discharged is solved to a certain extent.

Description

Technical Field

[0001] The present application belongs to the technical field of compressed air transportation devices, and specifically relates to a buffer device and a gas delivery system. Background Art

[0002] Compressed air is a common energy source. Air needs to be passed into an air compressor for compression to obtain compressed air, which is then stored in a buffer tank and then transported to the user end that needs to use compressed air.

[0003] At present, the automation level of buffer tanks is low. When compressed air flows out of the air compressor and is transported to the buffer tank, water mist may be precipitated due to temperature changes. In order to prevent this water mist from entering the buffer tank and being transported to the user end together with the compressed air, it is necessary to regularly open the drain valve connected to the buffer chamber of the buffer tank to drain water to ensure the quality of compressed air. Frequent opening of the drain valve can easily cause the compressed air to be discharged together, resulting in compressed air loss. When separating and discharging the liquid in the compressed air, the compressed air loss is large. Utility Model Content

[0004] The present application provides a buffer device and a gas delivery system, which are intended to solve, at least to a certain extent, the problem of large compressed air loss when separating and discharging liquid in the compressed air.

[0005] In a first aspect of the present application, a buffer device is provided, comprising:

[0006] A buffer container, provided with a buffer cavity for containing gas;

[0007] A gas-liquid separation component, connected to the buffer container and located in the buffer cavity, for separating the gas from the liquid in the gas in the buffer cavity;

[0008] A liquid level detection component, connected to the buffer container and used to detect the liquid level height of the liquid in the buffer cavity;

[0009] A drain valve, the input port of which is connected to the bottom of the buffer chamber, is used to discharge the liquid when the liquid level reaches a discharge height.

[0010] In some embodiments, the buffer container is further provided with a gas inlet which is in communication with the buffer cavity and for the gas to enter, and the gas-liquid separation component comprises:

[0011] A separation baffle is connected to the buffer container and is located in the buffer cavity, and at least one of the separation baffles is opposite to the air inlet.

[0012] In some embodiments, the gas-liquid separation component further comprises:

[0013] The separation net is connected to at least one of the separation baffles and covers one end of the air inlet close to the buffer chamber.

[0014] In some embodiments, the separation net is a metal wire net, and the thickness of the separation net is 5 to 10 times the thickness of the separation baffle.

[0015] In some embodiments, the buffer device further comprises:

[0016] A layered plate is connected to the gas-liquid separation component and is used to reduce the contact area between the liquid and the gas.

[0017] In some embodiments, the layered plates are horizontally distributed in the buffer cavity.

[0018] In some embodiments, the surface area of ​​the layered plate is 1 / 2 to 2 / 3 of the cross-sectional area of ​​the buffer cavity. In some embodiments, the buffer device further comprises a pressure transmitter connected to the buffer cavity for detecting the pressure of the buffer cavity.

[0019] In some embodiments, the buffer device is provided with at least two air inlets connected to the buffer cavity, and at least two air outlets connected to the buffer cavity.

[0020] In a second aspect of the present application, a gas delivery system is provided, comprising:

[0021] Several air compressor stations with two outlets for exhausting compressed air;

[0022] As the buffer device described above, the buffer container is further provided with a gas inlet which is communicated with the buffer cavity and for the gas to enter;

[0023] Two compressed air delivery pipelines respectively connecting the air inlet and the corresponding outlet, and stop valves respectively controlling the on-off of the two compressed air delivery pipelines.

[0024] Advantageous effects provided by one or more embodiments of the present application:

[0025] The buffer chamber of the buffer container can be used to receive and contain gases such as compressed air. The gas-liquid separation component connected to the buffer container and located in the buffer chamber can separate the compressed air from the liquid in the compressed air in the buffer chamber. Separation inside the buffer chamber will not affect the loss of compressed air, and the liquid in the compressed air can be separated, reducing the possibility that the liquid is transported out of the buffer chamber together with the compressed air. A liquid level detection component connected to the buffer container and detecting the liquid level in the buffer chamber is added, and in conjunction with a drain valve, when the liquid level in the buffer chamber reaches the discharge height, the liquid can be discharged from the buffer container from the bottom of the buffer chamber through the drain valve from the input port of the drain valve. The liquid level detection component and the drain valve can discharge the liquid from the buffer chamber at a fixed time, and the liquid will be deposited at the bottom of the buffer chamber due to gravity. When the liquid reaches the discharge height, the liquid is discharged. The liquid that has been separated from the gas and liquid contains less compressed air, which can reduce the liquid contained in the compressed air. While discharging the liquid regularly, a large amount of compressed air will not be discharged. To a certain extent, the problem of large compressed air loss when separating and discharging the liquid in the compressed air is solved. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0027] Figure 1 A schematic structural diagram of a buffer device in one or more embodiments of the present application is shown.

[0028] Figure 2 A schematic structural diagram of a gas delivery system in one or more embodiments of the present application is shown.

[0029] Figure 3 A schematic structural diagram of yet another gas delivery system in one or more embodiments of the present application is shown.

[0030] Explanation of the reference numerals: 1. Buffer container; 11. Buffer cavity; 12. Air inlet; 13. Air outlet; 14. Bracket; 15. Manhole; 16. Spare hole; 2. Gas-liquid separation component; 21. Separation baffle; 22. Separation net; 3. Liquid level detection component; 4. Drain valve; 5. Layering plate; 10. Air compressor station; 101. Outlet; 20. Compressed air delivery network; 30. Stop valve; 40. User end. DETAILED DESCRIPTION

[0031] In order to make the technical personnel in the technical field to which the present application belongs to understand the present application more clearly, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0032] See also Figure 1 , Figure 1 A schematic structural diagram of a buffer device in one or more embodiments of the present application is shown. In a first aspect of the present application, a buffer device is provided, including a buffer container 1, a gas-liquid separation component 2, a liquid level detection component 3 and a drain valve 4.

[0033] The buffer container 1 is provided with a buffer chamber 11 for accommodating gas.

[0034] The gas-liquid separation component 2 is connected to the buffer container 1 and is located in the buffer cavity 11 , and is used for separating gas from liquid in the gas in the buffer cavity 11 .

[0035] The liquid level detection assembly 3 is connected to the buffer container 1 and is used to detect the liquid level height of the liquid in the buffer cavity 11 .

[0036] The input port of the drain valve 4 is communicated with the bottom of the buffer chamber 11 for discharging liquid when the liquid level reaches a discharge height.

[0037] The buffer chamber 11 of the buffer container 1 can be used to receive and contain gases such as compressed air. The gas-liquid separation component 2 connected to the buffer container 1 and located in the buffer chamber 11 can separate the compressed air from the liquid in the compressed air in the buffer chamber 11. Separation inside the buffer chamber 11 will not affect the loss of compressed air, and the liquid in the compressed air can be separated, reducing the possibility that the liquid is transported out of the buffer chamber 11 together with the compressed air. A liquid level detection component 3 connected to the buffer container 1 and detecting the liquid level in the buffer chamber 11 is added, and in conjunction with the drain valve 4, when the liquid level in the buffer chamber 11 reaches the discharge height, the liquid can be discharged from the buffer container 1 from the input port of the drain valve 4 through the drain valve 4 from the bottom of the buffer chamber 11. The liquid level detection component 3 and the drain valve 4 can discharge the liquid from the buffer chamber 11 at a fixed time, and the liquid will be deposited at the bottom of the buffer chamber 11 due to gravity. When the liquid reaches the discharge height, the liquid is discharged. The liquid that has been separated from the gas and liquid contains less compressed air, which can reduce the liquid contained in the compressed air. While discharging the liquid at a fixed time, a large amount of compressed air will not be discharged. To a certain extent, it solves the problem of large compressed air loss when separating and discharging liquid in compressed air.

[0038] It should be noted that during a long transportation process of compressed air, water mist and droplets may be precipitated due to temperature and environmental changes. As for the liquid obtained by gas-liquid separation in the buffer chamber 11, even if it is stored in the buffer chamber 11, since the temperature is relatively consistent with the environment, it is not easy for the droplets to be re-mixed into the gas or compressed air to affect the quality of the compressed air or gas. Even if some droplets exchange substances with the compression space, the compressed air stored in the buffer chamber 11 contains less water vapor than the compressed space entering from the air inlet 12. The gas can be compressed air or other relatively safe gases that need to be transported over long distances, and this application does not impose any restrictions on this.

[0039] In some embodiments, the buffer container 1 is further provided with a gas inlet 12 which is in communication with the buffer cavity 11 and for gas to enter, and the gas-liquid separation component 2 includes a separation baffle 21 .

[0040] The separation baffle 21 is connected to the buffer container 1 and is located in the buffer cavity 11 . At least one separation baffle 21 is opposite to the air inlet 12 .

[0041] The separation baffle 21 is opposite to the air inlet 12. The gas entering the buffer chamber 11 from the air inlet 12 will contact and collide with the separation baffle 21. Different temperatures and collisions will cause separation between the gas or the liquid droplets in the compressed air and the gas. This promotes the separation of gas and liquid droplets and reduces the content of liquid droplets in the compressed air, so that the gas or compressed gas transported or stored by the buffer container 1 is purer and more in line with the use requirements. In addition, the structure and preparation of the separation baffle 21 are relatively simple, and will not significantly increase the overall preparation cost of the buffer container 1.

[0042] In some embodiments, the separation baffle 21 may be a plate-like structure connected to the buffer container 1 and spaced opposite to the air inlet 12; or a plurality of at least two separation baffles 21 spaced opposite to the air inlet 12 may be added, and the present application does not impose any limitation on this.

[0043] In some embodiments, the gas-liquid separation component 2 further includes a separation net 22 . The separation net 22 is connected to at least one separation baffle 21 and covers one end of the gas inlet 12 close to the buffer chamber 11 .

[0044] The separation net 22 is connected to the separation baffle 21 and covers one end of the air inlet 12 close to the buffer chamber 11. The separation net 22 can perform more effective gas-liquid separation on the gas or compressed air based on the separation baffle 21, which is beneficial to improve the separation degree of gas or compressed air from liquid droplets and improve the quality of compressed air. The separation net 22 can also separate gas and liquid based on the principle of condensation and collision separation.

[0045] In some embodiments, the separation net 22 is a metal wire net, and the thickness of the separation net 22 is 5 to 10 times the thickness of the separation baffle 21 .

[0046] The separation net 22 is a metal wire mesh, which is easy to obtain and prepare, and has a good gas-liquid separation effect. The thickness of the separation net 22 is 5 to 10 times the thickness of the separation baffle 21, so that the gas or compressed air can be effectively separated in the separation net 22 and then contact the separation baffle 21. The separation baffle 21 can separate gas and liquid, and can also play a certain role in guiding the compressed air.

[0047] In some embodiments, the separation baffle 21 and the separation net 22 can be arranged vertically and opposite to the air inlet 12 of the buffer container 1. When the gas and liquid are separated, the separation baffle 21 and the separation net 22 can also guide the lighter compressed air upwards, and the heavier liquid droplets fall naturally, which is also conducive to the separation of compressed air and liquid droplets.

[0048] In some embodiments, the gas-liquid separation component 2 can also be configured as a structure such as a curved condenser connected to the air inlet 12. Compressed air or gas can enter from the side of the condenser, and the separated gas or compressed air is discharged from the top of the condenser. Droplets fall from the bottom of the condenser to the bottom of the buffer chamber 11. The present application does not impose any restrictions on this.

[0049] In some embodiments, the buffer device further comprises a layered plate 5. The layered plate 5 is connected to the gas-liquid separation component 2 and is used to reduce the contact area between the liquid and the gas or compressed air.

[0050] The layered plate 5 reduces the contact area between the liquid and the compressed air, which can reduce the contact between the compressed air and the liquid, improve the quality of the compressed air, and reduce the loss of the compressed air when the liquid is discharged. And connected to the gas-liquid separation component 2, the gas or compressed air and the droplets separated by the gas-liquid separation component 2 can also be effectively separated. The liquid, droplets or water mist referred to in this application are all water vapor precipitated from the gas or compressed air, and the liquid is formed by the accumulation of water mist or droplets. This application does not limit this.

[0051] In some embodiments, the layering plate 5 can be arranged horizontally, which can effectively reduce the contact between compressed air or gas and liquid of different masses in the vertical direction or gravity direction. The layering plate 5 itself can be connected to the separation baffle 21 or the separation net 22, which is not limited in the present application.

[0052] In some embodiments, the layered plate 5 also extends from the gas-liquid separation component 2 to the bottom of the buffer chamber 11. The present application does not limit this.

[0053] In some embodiments, the plate surface area of ​​the layered plate 5 is 1 / 2 to 2 / 3 of the cross-sectional area of ​​the buffer cavity 11, which can effectively reduce the contact between the compressed air and the liquid.

[0054] In some embodiments, the gas-liquid separation assembly 2 is higher than the discharge height, which can ensure effective gas-liquid separation and improve the quality of compressed air.

[0055] In some embodiments, the buffer device further includes a pressure transmitter 6 connected to the buffer cavity 11 for detecting the pressure of the buffer cavity 11. The addition of the pressure transmitter 6 can improve the stability of the buffer device and ensure that the air pressure in the buffer cavity 11 is stable.

[0056] In some embodiments, the buffer device is provided with at least two air inlets 12 connected to the buffer chamber 11, and at least two air outlets 13 connected to the buffer chamber 11. Adding at least two air inlets 12 and air outlets 13 can improve the fault tolerance of the buffer container 1. When a problem occurs at one outlet, a different air inlet 12 or air outlet 13 can be replaced to operate the compressed air. Each air inlet 12 can be opposite to the separation net 22, which can ensure the gas-liquid separation of the compressed air.

[0057] In some embodiments, the air inlet 12 and the air outlet 13 of the buffer device can be respectively located on both sides of the buffer cavity 11, and the separation net 22, the separation baffle 21 and the layering plate 5, and the liquid level detection component 3 can be distributed in sequence along the direction from the air inlet 12 to the buffer cavity 11. It can effectively reduce the water vapor content in the compressed air, improve the quality of the compressed air and reduce the loss of the compressed air.

[0058] In some embodiments, the liquid level detection component 3 may include a liquid level transmitter or a liquid level relay, and the drain valve 4 may be a solenoid valve. The drain valve 4 may be opened or closed to discharge sewage according to the liquid level detected by the liquid level transmitter or the liquid level relay. When the liquid level reaches a certain height, the liquid level transmitter or the liquid level relay may send a signal to the drain valve 4 to discharge the sewage. The certain height reached by the liquid level may be set as the discharge height.

[0059] In some embodiments, the liquid level detection component 3 may further include a controller, which is used to receive a signal from a liquid level transmitter or a liquid level relay, and send a signal to the drain valve 4 to control the operation of the drain valve 4. The relay may also be used to receive the signal from the liquid level transmitter or the liquid level relay to control the drain valve 4, or the control of the drain valve 4 may be achieved through a logic circuit. This application does not limit this.

[0060] In some embodiments, the buffer container 1 can be supported on different structures by a bracket 14 or legs, which is convenient for placement and installation. The buffer container 1 can also be provided with an openable and closable manhole 15 and a spare hole 16, which is convenient for maintenance.

[0061] In some embodiments, the buffer container 1 may be a container such as a buffer tank or a buffer bottle, and the inner cavity of the buffer tank or the buffer bottle forms a buffer cavity 11. The buffer container 1 may also be configured as other structures, which is not limited in the present application.

[0062] Figure 2 In a second aspect of the present application, a gas delivery system is provided, comprising:

[0063] The plurality of air compressor stations 10 are provided with two outlets 101 for discharging compressed air.

[0064] A buffer device as previously described.

[0065] Two compressed air delivery pipelines 20 respectively connecting the air inlet and the corresponding outlet 101, and stop valves 30 respectively controlling the on-off of the two compressed air delivery pipelines 20.

[0066] The structure and effect of the buffer device can be referred to above and will not be described again here. The gas delivery system provided in the embodiment of the present application connects the dual inlet to the dual outlet 101 pipeline of the air compressor station 10, and the dual outlet 101 is connected to the user's compressed air dual pipeline. When a compressed air pipeline 20 leaks, it can be controlled by the stop valves 30 on both sides, which does not affect the compressed air delivery, reducing the loss caused by the failure to stop the compressed air delivery in time.

[0067] For ease of understanding, here is provided Figure 2 and Figure 3 , Figure 2 A schematic diagram of the structure of a gas delivery system in one or more embodiments of the present application is shown. Figure 3 A schematic diagram of the structure of another gas delivery system in one or more embodiments of the present application is shown, referring to Figure 2 and Figure 3 , Figure 2 and Figure 3 Schematically shows structures such as an air compressor station 10 , a buffer device, and a compressed air delivery network 20 . The gas delivery system may also include a user end 40 connected to the compressed air delivery network 20 .

[0068] refer to Figure 2 and Figure 3For example, if one of the two compressed air delivery pipelines 20 leaks, the compressed air supply cannot be stopped in time due to production needs. In the past, when the leakage is not large, it may not be processed, resulting in a waste of compressed air. After the compressed air delivery pipeline 20 realizes dual-pipeline or multi-pipeline transportation, the stop valve 30 can be closed. It should be noted that multiple stop valves 30 can be set on each compressed air delivery pipeline 20, and the stop valve 30 can be set on different pipelines in the compressed air delivery pipeline 20. The compressed air delivery pipeline 20 can include multiple pipelines that are interconnected to form a stable transportation channel. This setting can repair the leaking pipeline and supply air to the user through another pipeline without affecting the user's production.

[0069] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0070] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise" and "counterclockwise" indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0071] In this application, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" 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 an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0072] In addition, the descriptions of "first", "second", etc. in this application are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0073] Although the embodiments of the present application have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present application, and that the scope of the present application is defined by the claims and their equivalents.

Claims

1. A buffer device, characterized in that: include: A buffer container, provided with a buffer cavity for containing gas; A gas-liquid separation component, connected to the buffer container and located in the buffer cavity, for separating the gas from the liquid in the gas in the buffer cavity; A liquid level detection component, connected to the buffer container and used to detect the liquid level height of the liquid in the buffer cavity; A drain valve, the input port of which is connected to the bottom of the buffer chamber, is used to discharge the liquid when the liquid level reaches a discharge height.

2. The buffer device according to claim 1, characterized in that: The buffer container is also provided with a gas inlet which is in communication with the buffer cavity and for the gas to enter. The gas-liquid separation component comprises: A separation baffle is connected to the buffer container and is located in the buffer cavity, and at least one of the separation baffles is opposite to the air inlet.

3. The buffer device according to claim 2, characterized in that: The gas-liquid separation component also includes: The separation net is connected to at least one of the separation baffles and covers one end of the air inlet close to the buffer chamber.

4. The buffer device according to claim 3, characterized in that: The separation net is a metal wire net, and the thickness of the separation net is 5 to 10 times the thickness of the separation baffle.

5. The buffer device according to any one of claims 1 to 4, characterized in that: The buffer device also includes: A layered plate is connected to the gas-liquid separation component and is used to reduce the contact area between the liquid and the gas.

6. The buffer device according to claim 5, characterized in that: The layered plates are horizontally distributed in the buffer cavity.

7. The buffer device according to claim 6, characterized in that: The plate surface area of ​​the layered plate is 1 / 2 to 2 / 3 of the cross-sectional area of ​​the buffer cavity.

8. The buffer device according to any one of claims 1 to 4, characterized in that: The buffer device also includes a pressure transmitter communicated with the buffer cavity for detecting the pressure of the buffer cavity.

9. The buffer device according to any one of claims 1 to 4, characterized in that: The buffer device is provided with at least two air inlets connected to the buffer cavity, and at least two air outlets connected to the buffer cavity.

10. A gas delivery system, characterized in that: include: Several air compressor stations with two outlets for exhausting compressed air; The buffer device according to any one of claims 1 to 9, wherein the buffer container is further provided with an air inlet connected to the buffer cavity and for the gas to enter; Two compressed air delivery pipelines respectively connecting the air inlet and the corresponding outlet, and stop valves respectively controlling the on-off of the two compressed air delivery pipelines.

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