Water cutting device of fractionation system

Abstract

The utility model discloses a fractionation system water cutting device which comprises a water cutting assembly, a sewage buffer tank, a sewage station and a controller, the water cutting assembly comprises a water cutting bag, a first stop valve and a first stop valve which are sequentially communicated through a first pipeline, and a first remote liquid level meter and a pressure gauge are arranged on the sewage buffer tank. The first stop valve is communicated with the sewage buffer tank through a second pipeline, the sewage buffer tank is communicated with the sewage station through a third pipeline, and the controller is electrically connected with the first stop valve and the first remote liquid level meter. The water cutting device of the fractionation system is simple in structure and convenient to use, the water cutting state is monitored in real time through matched arrangement of the water cutting assembly, the sewage buffer tank, the sewage station and the controller, and fire disasters caused by outflow of liquefied gas are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of water cutting devices, in particular to a water cutting device for a fractionation system. Background Art

[0002] A large amount of water usually accumulates in the raw liquefied gas buffer tank, reflux tank, and coalescer of the distillation system of the alkylation unit. Operators are required to go to the on-site tank water bag to cut off the water every shift. People cannot leave when cutting the water. When the water is almost cut off, the water cut-off valve must be closed immediately. If the valve is not closed or not closed tightly, liquefied gas will flow out after the water flows out, posing a risk of fire and explosion.

[0003] Based on the above situation, the utility model proposes a water cutting device for a fractionation system, which can effectively solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a water cut-off device for a fractionation system. The water cut-off device for a fractionation system of the utility model has a simple structure and is easy to use. Through the coordinated arrangement of a water cut-off component, a sewage buffer tank, a sewage station and a controller, the water cut-off state is monitored in real time, and a fire caused by the outflow of liquefied gas is avoided.

[0005] The utility model is realized by the following technical solutions:

[0006] A water cut-off device for a distillation system comprises a water cut-off assembly, a sewage buffer tank, a sewage station and a controller, wherein the water cut-off assembly comprises a water cut-off bag, a first stop valve and a first cut-off valve which are connected in sequence through a first pipeline, the sewage buffer tank is provided with a first remote liquid level gauge and a pressure gauge, the first cut-off valve is connected to the sewage buffer tank through a second pipeline, the sewage buffer tank is connected to the sewage station through a third pipeline, and the controller is electrically connected to the first cut-off valve and the first remote liquid level gauge respectively.

[0007] The purpose of the utility model is to provide a water cut-off device for a fractionation system. The water cut-off device for a fractionation system of the utility model has a simple structure and is easy to use. Through the coordinated arrangement of a water cut-off component, a sewage buffer tank, a sewage station and a controller, the water cut-off state is monitored in real time, and a fire caused by the outflow of liquefied gas is avoided.

[0008] Preferably, a second stop valve is provided on the second pipeline.

[0009] Preferably, a second cut-off valve is provided on the third pipeline, and the second cut-off valve is electrically connected to the controller.

[0010] Preferably, a second remote liquid level gauge is provided in the water cut-off package, and the second remote liquid level gauge is electrically connected to the controller.

[0011] Compared with the prior art, the utility model has the following advantages and beneficial effects:

[0012] 1. Easy to operate. You only need to control it on the computer in the control room to complete the water cutting. There is no need to keep an eye on it on site.

[0013] 2. It is safer than the original on-site water cutting. When the liquid level in the water cutting bag is low, the first shut-off valve will be interlocked and closed automatically. Even if the first shut-off valve fails and liquefied gas is discharged, it will be discharged to the sewage buffer tank. The pressure gauge in the sewage buffer tank detects high pressure and alarms, which can also be discovered and dealt with in time to prevent liquefied gas from leaking into the atmosphere, greatly reducing the operational risks of on-site personnel. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model. DETAILED DESCRIPTION

[0015] In order to enable those skilled in the art to better understand the technical solution of the utility model, the preferred implementation scheme of the utility model is described below in conjunction with specific embodiments. However, it should be understood that the drawings are only used for illustrative purposes and cannot be understood as a limitation on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. The positional relationship described in the drawings is only used for illustrative purposes and cannot be understood as a limitation on this patent.

[0016] The technical features such as the water cut-off assembly, sewage buffer tank, sewage station and controller described in the utility model (constituent units / elements of the utility model), unless otherwise specified, are obtained from conventional commercial channels or manufactured by conventional methods. Their specific structures, working principles, and possible control methods and spatial layout methods can be selected conventionally in the field and should not be regarded as the innovative points of the utility model. For those skilled in the art, it is understandable that this utility model patent will not be further elaborated.

[0017] Embodiment 1:

[0018] like Figure 1 As shown, the utility model provides a water cut-off device for a distillation system, including a water cut-off component, a sewage buffer tank 2, a sewage station and a controller, the water cut-off component includes a water cut-off bag 11, a first stop valve 12 and a first cut-off valve 13 which are connected in sequence through a first pipeline 10, the sewage buffer tank 2 is provided with a first remote liquid level gauge and a pressure gauge, the first cut-off valve 13 is connected to the sewage buffer tank 2 through a second pipeline 20, the sewage buffer tank 2 is connected to the sewage station through a third pipeline 30, and the controller is electrically connected to the first cut-off valve 13 and the first remote liquid level gauge, respectively.

[0019] Embodiment 2:

[0020] like Figure 1 As shown, the utility model provides a water cut-off device for a distillation system, including a water cut-off component, a sewage buffer tank 2, a sewage station and a controller, the water cut-off component includes a water cut-off bag 11, a first stop valve 12 and a first cut-off valve 13 which are connected in sequence through a first pipeline 10, the sewage buffer tank 2 is provided with a first remote liquid level gauge and a pressure gauge, the first cut-off valve 13 is connected to the sewage buffer tank 2 through a second pipeline 20, the sewage buffer tank 2 is connected to the sewage station through a third pipeline 30, and the controller is electrically connected to the first cut-off valve 13 and the first remote liquid level gauge, respectively.

[0021] The second pipeline 20 is provided with a second stop valve 21 .

[0022] The second stop valve 21 can be provided to control the connection and disconnection between the water cut-off assembly and the sewage buffer tank 2 .

[0023] Furthermore, in another embodiment, a second cut-off valve 31 is provided on the third pipeline 30 , and the second cut-off valve 31 is electrically connected to the controller.

[0024] The second shut-off valve 31 can be provided to control the connection and disconnection between the sewage buffer tank 2 and the sewage station, and the controller can control the opening and closing of the second shut-off valve 31 .

[0025] Furthermore, in another embodiment, a second remote liquid level gauge is provided in the water cut package 11, and the second remote liquid level gauge is electrically connected to the controller.

[0026] A second remote liquid level meter is arranged in the water cut bag 11 to monitor the liquid level in the water cut bag 11 in real time, and the liquid level information can be sent to the controller.

[0027] The working principle of one embodiment of the utility model is as follows:

[0028] A water cut-off device for a distillation system. When the liquid level of a water cut-off bag 11 is high, a first cut-off valve 13 can be controlled to be opened on a central control computer. If the liquid level of the water cut-off bag 11 is too low and the first cut-off valve 13 is forgotten to be closed, the controller will automatically control the closing of the first cut-off valve 13. The same operation is also performed when the liquid level in a sewage buffer tank 2 is high. The sewage buffer tank 2 has a large volume and does not need to be operated frequently. A high pressure alarm is set on the sewage buffer tank 2. Once the first cut-off valve 13 of the water cut-off bag 11 fails and liquefied gas is discharged into the sewage buffer tank 2, the pressure in the sewage buffer tank 2 will rise and an alarm will begin. At this time, an external operator is required to go to the site to close the manual valve.

[0029] According to the description and drawings of the present invention, those skilled in the art can easily manufacture or use the distillation system water cutting device of the present invention, and can produce the positive effects recorded in the present invention.

[0030] Unless otherwise specified, in the present invention, the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicating orientation or positional relationships are based on the orientation or positional relationships shown in the drawings, which are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation. Therefore, the terms describing the orientation or positional relationship in the present invention are only used for illustrative purposes and cannot be understood as limitations on this patent. For ordinary technicians in this field, the specific meanings of the above terms can be understood in conjunction with the drawings and according to specific circumstances.

[0031] Unless otherwise specified and limited, in the present invention, the terms "disposed", "connected" and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A water cutting device for a fractionation system, characterized in that: It includes a water cut-off component, a sewage buffer tank, a sewage station and a controller. The water cut-off component includes a water cut-off bag, a first stop valve and a first cut-off valve which are connected in sequence through a first pipeline. The sewage buffer tank is provided with a first remote liquid level gauge and a pressure gauge. The first cut-off valve is connected to the sewage buffer tank through a second pipeline. The sewage buffer tank is connected to the sewage station through a third pipeline. The controller is electrically connected to the first cut-off valve and the first remote liquid level gauge respectively.

2. The water cutting device for the fractionation system according to claim 1, characterized in that: The second pipeline is provided with a second stop valve.

3. The water cutting device for the fractionation system according to claim 1, characterized in that: The third pipeline is provided with a second cut-off valve, and the second cut-off valve is electrically connected to the controller.

4. The water cutting device for a fractionation system according to claim 1, characterized in that: A second remote liquid level gauge is provided in the water cut-off package, and the second remote liquid level gauge is electrically connected to the controller.

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