Automatic drainage device of gas storage tank

Abstract

The utility model relates to an automatic drainage device of a gas storage tank, which comprises the gas storage tank used for storing compressed gas; the liquid storage tank is used for storing and discharging condensate water; the first pipeline is connected between the gas storage tank and the liquid storage tank, the first pipeline is used for conveying the condensate water in the gas storage tank to the liquid storage tank, and the first pipeline is provided with a first valve; and the second pipeline is connected to the liquid storage tank and is provided with a second valve. According to the automatic drainage device of the gas storage tank, condensate water in the gas storage tank is drained into the liquid storage tank by opening the first valve and closing the second valve, leakage and waste of compressed gas in the gas storage tank are avoided due to closing of the second valve, then the first valve is closed, the second valve is opened, and the condensate water in the gas storage tank is drained into the liquid storage tank. When the condensate water is discharged, the condensate water in the liquid storage tank can be discharged, at the moment, due to the fact that the first valve is closed, leakage and waste of compressed gas in the gas storage tank cannot be caused, and then the phenomenon that the compressed gas is wasted in the condensate water discharging process is effectively avoided.

Description

Technical Field

[0001] The present application relates to the technical field of gas tank drainage, and in particular to an automatic drainage device for a gas tank. Background Art

[0002] The air storage tank is an important part of the air compression system. The compressed gas is stored in the air storage tank and the compressed gas is supplied to other equipment through the air storage tank. During the operation of the air compression system, condensed water is generated in the air storage tank. Therefore, a drain pipe is required to discharge the condensed water in the air storage tank. Currently, a steam trap is usually installed on the drain pipe, and the drain pipe is connected to the bottom of the air storage tank. When condensed water is generated, the steam trap is opened to discharge the condensed water and collect it centrally. After the condensed water is discharged, the steam trap is closed. Because the condensed water generated in the air storage tank contains impurities, under the influence of impurities, the steam trap may not be able to be closed after the condensed water is discharged, causing the steam trap to remain in the open state for a long time and causing leakage and waste of compressed gas. Utility Model Content

[0003] The purpose of this application is to provide an automatic drainage device for a gas tank, which can control the drainage of the gas tank without causing waste of compressed gas, thereby effectively solving the shortcomings of the existing technology.

[0004] To this end, an embodiment of the present application provides an automatic drainage device for a gas storage tank, comprising:

[0005] Gas tanks, used to store compressed gas;

[0006] Liquid storage tank, used to store and discharge condensed water;

[0007] a first pipeline connected between the gas storage tank and the liquid storage tank, the first pipeline being used to transport condensed water in the gas storage tank to the liquid storage tank, the first pipeline being provided with a first valve, the first valve opening or closing the first pipeline;

[0008] The second pipeline is connected to the liquid storage tank. The second pipeline is used to discharge condensed water in the liquid storage tank. The second pipeline is provided with a second valve. The second valve opens or closes the second pipeline.

[0009] In some possible implementations, the open and closed state of the first valve is opposite to the open state of the second valve.

[0010] In some possible implementations, the liquid storage tank is provided with a liquid level monitoring device for monitoring the liquid level of the condensed water in the liquid storage tank.

[0011] In some possible implementations, a controller is further included, and the liquid level monitoring device, the first valve, and the second valve are all electrically connected to the controller.

[0012] In some possible implementations, the liquid level monitoring device detects a high liquid level signal in the liquid storage tank and transmits the high liquid level signal to the controller. The controller recognizes the high liquid level signal and controls the first valve to close and the second valve to open.

[0013] In some possible implementations, the liquid level monitoring device detects a low liquid level signal in the liquid storage tank and transmits the low liquid level signal to the controller. The controller recognizes the low liquid level signal and controls the first valve to open and the second valve to close.

[0014] In some possible implementations, a third pipeline is provided between the first pipeline and the second pipeline, the third pipeline and the liquid storage tank are connected in parallel, one end of the third pipeline is connected to the upstream position of the first valve on the first pipeline, and the other end of the third pipeline is connected to the downstream position of the second valve on the second pipeline, and the third pipeline is provided with a third valve and a steam trap.

[0015] In some possible implementations, the first pipeline is provided with a fourth valve, and the fourth valve is located upstream of a connection point between the first pipeline and the third pipeline.

[0016] In some possible implementations, the first pipeline is connected to the lower part of the gas storage tank.

[0017] In some possible implementations, the first pipeline is connected to the upper portion of the liquid storage tank, and the second pipeline is connected to the lower portion of the liquid storage tank.

[0018] According to the automatic drainage device for the gas tank provided in the embodiment of the present application, the condensed water in the gas tank can be diverted to the liquid storage tank. By opening the first valve and closing the second valve, the condensed water in the gas tank is discharged into the liquid storage tank. Due to the closure of the second valve, the compressed gas in the gas tank will not be leaked and wasted. Then, the first valve is closed and the second valve is opened to discharge the condensed water in the liquid storage tank. At this time, due to the closure of the first valve, the compressed gas in the gas tank will not be leaked and wasted, thereby effectively avoiding the waste of compressed gas in the process of discharging the condensed water. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the drainage device provided in an embodiment of the present application;

[0020] Figure 2 This is a structural block diagram of the controller, first valve, second valve and liquid level monitoring device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0021] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0022] like Figure 1 、 Figure 2 As shown, the embodiment of the present application provides an automatic drainage device for an air storage tank 100, which is used in an air compression system, and is preferably used for discharging condensed water from the air storage tank 100 in the air compression system. The air storage tank 100 is used to store compressed gas in the air compression system, and also plays a role in stabilizing the system pressure. During the operation of the air compression system, condensed water will be generated in the air storage tank 100, and it is necessary to discharge the condensed water in the air storage tank 100. The method currently used is to connect a drain pipe to the air storage tank 100, and a steam trap 700 is set on the drain pipe. When the air storage tank 100 is When condensed water is generated, the condensed water flows into the drain pipe, causing the steam trap 700 to open, thereby draining the condensed water. After the condensed water is drained, the steam trap 700 is closed. In practice, since the condensed water contains certain impurities, the steam trap 700 is easily stuck under the influence of the impurities. After the condensed water is drained, the steam trap 700 cannot be closed, thereby causing the compressed gas to leak out through the drain pipe and the steam trap 700, resulting in waste of compressed gas. The automatic drainage device of the gas storage tank 100 of the present application is intended to eliminate the phenomenon of compressed gas leakage and waste during the drainage process of the gas storage tank 100.

[0023] The automatic drainage device of the air tank 100 includes an air tank 100, a liquid tank 200, a first pipeline 301 and a second pipeline 302. The air tank 100 is used in an air compression system. The air tank 100 is used to store compressed air, and the liquid tank 200 is used to store and discharge condensed water. The condensed water generated in the air tank 100 is first stored in the liquid tank 200, and then the condensed water in the liquid tank 200 is discharged outward for centralized treatment. The first pipeline 301 is connected between the air tank 100 and the liquid tank 200. The first pipeline 301 is used to transport the condensed water generated in the air tank 100 to the liquid tank 200. The second pipeline 302 is connected to the liquid tank 200. The second pipeline 302 is used to discharge the condensed water in the liquid tank 200.

[0024] In this embodiment, one end of the first pipeline 301 is connected to the gas storage tank 100, the other end of the first pipeline 301 is connected to the liquid storage tank 200, one end of the second pipeline 302 is connected to the liquid storage tank 200, and the other end of the second pipeline 302 extends outward. Preferably, the first pipeline 301 is connected to the lower part of the gas storage tank 100, that is, the first pipeline 301 is connected to a position near the lower part of the gas storage tank 100. After the condensed water is generated, it gathers at the bottom of the gas storage tank 100 under the action of gravity. The first pipeline 301 is connected to the lower part of the gas storage tank 100 to facilitate the transportation of the condensed water tank 200. In this embodiment, one end of the first pipeline 301 is connected to the bottom of the gas storage tank 100, the other end of the first pipeline 301 is connected to the top of the liquid storage tank 200, and the other end of the first pipeline 301 is connected to the bottom of the gas storage tank 100. One end of the first pipe 301 is connected to the upper part of the liquid storage tank 200, and one end of the second pipe 302 is connected to the lower part of the liquid storage tank 200, that is, the other end of the first pipe 301 is connected to a position near the upper part of the liquid storage tank 200, and one end of the second pipe 302 is connected to a position near the lower part of the liquid storage tank 200, so that the condensed water in the gas tank 100 is transported to the liquid storage tank 200, and the condensed water in the liquid storage tank 200 is discharged outward. More preferably, one end of the first pipe 301 is connected to the bottom of the gas tank 100, the other end of the first pipe 301 is connected to the top of the gas tank 100, and one end of the second pipe 302 is connected to the bottom of the gas tank 100, so that the condensed water in the gas tank 100 is smoothly transported to the liquid storage tank 200, and the condensed water in the liquid storage tank 200 is smoothly discharged outward.

[0025] A first valve 401 is provided on the first pipeline 301, and the first valve 401 is used to open or close the first pipeline 301. A second valve 402 is provided on the second pipeline 302, and the second valve 402 is used to open or close the second pipeline 302. When the air compression system is running, the first valve 401 is in an open state and the second valve 402 is in a closed state, so that the condensed water formed in the gas storage tank 100 is transported to the liquid storage tank 200 via the first pipeline 301, and the formed condensed water is transferred to the liquid storage tank 200, while the second valve 402 is in a closed state, that is, the condensed water in the gas storage tank 100 can be discharged without causing the gas storage tank to be damaged. The leakage of compressed gas in the tank 100 is wasted. When the condensed water in the liquid storage tank 200 needs to be discharged outward, the first valve 401 is closed and the second valve 402 is opened. At this time, the first valve 401 is closed, and the leakage of compressed gas will not be wasted, nor will it affect the normal gas supply of the gas storage tank 100. The condensed water in the liquid storage tank 200 can be discharged smoothly, and the condensed water is transferred to a designated location through the second pipeline 302. When the first valve 401 is opened, the second valve 402 is closed. When the first valve 401 is closed, the second valve 402 is opened, so the opening and closing state of the first valve 401 is opposite to the opening and closing state of the second valve 402.

[0026] When the gas storage tank 100 is drained by the automatic drainage device, leakage and waste of compressed gas can be effectively avoided. In order to further improve the smoothness of condensed water transportation, the top height of the liquid storage tank 200 is lower than the bottom height of the gas storage tank 100.

[0027] Preferably, a liquid level monitoring device 500 is provided on the liquid storage tank 200, and the liquid level monitoring device 500 is used to monitor the liquid level of the condensed water in the liquid storage tank 200 to determine how much condensed water is stored in the liquid storage tank 200. In one embodiment, the liquid level monitoring device 500 is a liquid level gauge, and the first valve 401 and the second valve 402 are both manual ball valves. When the operator observes that the liquid level gauge is low, that is, there is less condensed water in the liquid storage tank 200, the second valve 402 is closed and the first valve 401 is opened, so that the gas storage tank 100 is The condensed water generated in the gas tank 100 is transported to the liquid storage tank 200, and the condensed water in the gas tank 100 is gradually transported to the liquid storage tank 200. When the operator observes that the liquid level gauge is at a high level, that is, there is a lot of condensed water in the liquid storage tank 200, the condensed water in the liquid storage tank 200 can be discharged. At this time, the first valve 401 is closed and the second valve 402 is opened, which can not only enable the gas tank 100 to operate normally without leakage of compressed gas in the gas tank 100, but also enable the condensed water in the liquid storage tank 200 to be discharged smoothly through the second pipeline 302.

[0028] Preferably, a controller 600 is further included. The first valve 401 and the second valve 402 are both electric valves. The first valve 401, the second valve 402 and the liquid level monitoring device 500 are all electrically connected to the controller 600. The liquid level monitoring device 500 monitors the liquid level in the liquid storage tank 200 and transmits the liquid level signal to the controller 600. The controller 600 identifies the liquid level signal and controls the first valve 401 and the second valve 402 according to the identification result. When the liquid level in the liquid storage tank 200 is low, the liquid level monitoring device 500 detects a low liquid level signal and transmits the low liquid level signal to the controller 600. The controller 600 controls the first valve 401 to open and the second valve 402 to close according to the low liquid level signal, so that the condensed water in the gas storage tank 100 is transported to the liquid storage tank 200. When the liquid level monitoring device 500 detects a high liquid level signal and transmits the high liquid level signal to the controller 600, the controller 600 controls the first valve 401 to close and the second valve 402 to open according to the high liquid level signal. The specific vertical values ​​of the high liquid level and the low liquid level can be determined according to production. For example, the low liquid level can be set to 10% of the capacity of the liquid storage tank 200, and the high liquid level can be set to 85% of the capacity of the liquid storage tank 200.

[0029] Preferably, a third pipeline 303 is provided between the first pipeline 301 and the second pipeline 302, and the third pipeline 303 and the liquid storage tank 200 are connected in parallel. One end of the third pipeline 303 is connected to the upstream position of the first valve 401 on the first pipeline 301, and the other end of the third pipeline 303 is connected to the downstream position of the second valve 402 on the second pipeline 302. A third valve 403 and a steam trap 700 are provided on the third pipeline 303. In this way, when the third valve 403 is closed, the condensed water of the gas storage tank 100 can be discharged through the liquid storage tank 200. When the third valve 403 is opened and the first valve 401 and the second valve 402 are closed, the gas storage tank 100 can be drained through the third pipeline 303, that is, the gas storage tank 100 is drained in the form of a steam trap 700, thereby improving the adaptability and fault tolerance of the equipment.

[0030] In this embodiment, there is only the fourth valve 404 on the first pipeline 301. The fourth valve 404 is located upstream of the connection point between the first pipeline 301 and the third pipeline 303. That is, along the first pipeline 301, the connection point between the third pipeline 303 and the first pipeline 301 is located downstream of the fourth valve 404. The fourth valve 404 is responsible for the overall opening and closing control of the drainage of the gas storage tank 100.

[0031] It should be noted that references in this specification to "one embodiment," "an embodiment," "an exemplary embodiment," "some embodiments," and the like indicate that the described embodiment may include a particular feature, structure, or characteristic, but not necessarily every embodiment includes that particular feature, structure, or characteristic. Furthermore, such phrases do not necessarily refer to the same embodiment. Furthermore, when a particular feature, structure, or characteristic is described in conjunction with an embodiment, it is within the knowledge of those skilled in the art to implement such feature, structure, or characteristic in conjunction with other embodiments, whether explicitly described or not.

[0032] It should be readily understood that “on,” “above,” and “over” in this disclosure should be interpreted in the broadest manner, such that “on” means not only “directly on something,” but also includes “on something” with intervening features or layers therebetween, and “above” or “over” includes not only the meaning of “above” or “over,” but also includes “above” or “over” with no intervening features or layers therebetween (i.e., directly on something).

[0033] Additionally, spatially relative terms, such as "below," "beneath," "beneath," "above," and the like, may be used herein for ease of description to describe the relationship of one element or feature to other elements or features as depicted in the figures. Spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. The device may be otherwise oriented (rotated 90 degrees or at other orientations), and the spatially relative descriptors used herein should be interpreted accordingly.

[0034] 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 entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0035] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. These modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An automatic drainage device for a gas storage tank, characterized in that: include: Gas tanks, used to store compressed gas; Liquid storage tank, used to store and discharge condensed water; a first pipeline connected between the gas storage tank and the liquid storage tank, the first pipeline being used to transport condensed water in the gas storage tank to the liquid storage tank, the first pipeline being provided with a first valve, the first valve opening or closing the first pipeline; The second pipeline is connected to the liquid storage tank. The second pipeline is used to discharge condensed water in the liquid storage tank. The second pipeline is provided with a second valve. The second valve opens or closes the second pipeline.

2. The automatic drainage device for a gas storage tank according to claim 1, characterized in that: The open and closed state of the first valve is opposite to the open state of the second valve.

3. The automatic drainage device for a gas storage tank according to claim 1, characterized in that: The liquid storage tank is provided with a liquid level monitoring device for monitoring the liquid level of the condensed water in the liquid storage tank.

4. The automatic drainage device for a gas storage tank according to claim 3, characterized in that: A controller is also included, and the liquid level monitoring device, the first valve and the second valve are all electrically connected to the controller.

5. The automatic drainage device for a gas storage tank according to claim 4, characterized in that: The liquid level monitoring device monitors a high liquid level signal in the liquid storage tank and transmits the high liquid level signal to the controller. The controller recognizes the high liquid level signal and controls the first valve to close and the second valve to open.

6. The automatic drainage device for a gas storage tank according to claim 4, characterized in that: The liquid level monitoring device monitors a low liquid level signal in the liquid storage tank and transmits the low liquid level signal to the controller. The controller recognizes the low liquid level signal and controls the first valve to open and the second valve to close.

7. The automatic drainage device for a gas storage tank according to claim 1, characterized in that: A third pipeline is provided between the first pipeline and the second pipeline. The third pipeline and the liquid storage tank are connected in parallel. One end of the third pipeline is connected to the upstream position of the first valve on the first pipeline, and the other end of the third pipeline is connected to the downstream position of the second valve on the second pipeline. The third pipeline is provided with a third valve and a steam trap.

8. The automatic drainage device for a gas storage tank according to claim 1, characterized in that: The first pipeline is provided with a fourth valve, and the fourth valve is located upstream of the connection point between the first pipeline and the third pipeline.

9. The automatic drainage device for a gas storage tank according to claim 1, characterized in that: The first pipeline is connected to the lower part of the gas storage tank.

10. The automatic drainage device for a gas storage tank according to claim 1, characterized in that: The first pipeline is connected to the upper part of the liquid storage tank, and the second pipeline is connected to the lower part of the liquid storage tank.

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