Negative pressure drainage device for gas pretreatment system

Abstract

The utility model relates to the technical field of liquid drainage devices, and provides a negative pressure liquid drainage device for a gas pretreatment system, the negative pressure liquid drainage device comprises a supporting plate, a clamping mechanism and a flexible transparent pipe, the clamping mechanism is arranged on the supporting plate, one end of the flexible transparent pipe is installed on a liquid drainage valve, and the other end of the flexible transparent pipe is clamped and fixed through the clamping mechanism; the clamping mechanism is located on the lateral lower portion of the drain valve, and after liquid is injected into the flexible transparent pipe, the flexible transparent pipe forms a U-shaped structure under the action of gravity. The device has the advantages of being simple in structure, easy to install and high in practicability, according to the U-shaped water seal principle, under the condition that human intervention is not needed, condensate liquid in the condensation tank can be automatically discharged by utilizing the negative pressure state generated by the height difference of liquid, the problem of manual periodic liquid discharging is solved, the labor intensity of personnel is reduced, and the working efficiency is improved. Due to the fact that the valve does not need to be operated, the problem of misoperation is avoided, the whole device is not provided with electrical elements and moving parts, power-free operation can be achieved, and operation cost is reduced.

Description

Technical Field

[0001] This application relates to the field of drainage device technology, and more specifically, to a negative pressure drainage device for a gas pretreatment system. Background Technology

[0002] In industrial production, it is often necessary to perform gas analysis on complex gases such as online gas media or exhaust flue gas. In order to maximize the accuracy of gas analysis and detection and effectively extend the life of gas analyzers, the target gas needs to be pre-treated to filter out harmful components and adjust the temperature, pressure, flow rate and other parameters of the target gas to the range allowed by the analyzer before it is sent into the analyzer.

[0003] The filtered condensate needs to be drained. Since the original pretreatment system only had a manual drain valve for the condenser, and the condenser was operating under negative pressure, four valves needed to be manually closed and opened to drain the condensate. Resuming operation also required operating the valves four times. This could easily lead to excessive fluctuations in the analysis data due to misoperation, triggering the interlock. Since the condenser can only store 100mL of condensate, it needs to be manually drained every 12 hours. This operation is complicated, has low production efficiency, and results in high labor intensity for workers. Utility Model Content

[0004] The purpose of this application is to provide a negative pressure drainage device for a gas pretreatment system, which realizes closed negative pressure, automatic drainage, and reduces the labor intensity of personnel.

[0005] This application provides a negative pressure drainage device for a gas pretreatment system, adopting the following technical solution:

[0006] A negative pressure drainage device for a gas pretreatment system includes a support plate, a clamping mechanism, and a flexible transparent tube. The clamping mechanism is disposed on the support plate. One end of the flexible transparent tube is mounted on a drainage valve, and the other end of the flexible transparent tube is clamped and fixed by the clamping mechanism. The clamping mechanism is located below the drainage valve. After liquid is injected into the flexible transparent tube, the flexible transparent tube forms a U-shaped structure under the action of gravity.

[0007] Preferably, the support plate has a plurality of scale holes, which are symmetrically distributed in pairs.

[0008] Preferably, the clamping mechanism includes a support rod disposed opposite to the support plate, a rotating component sleeved on the support rod, and a limiting component that positions the rotating component on the support rod, wherein the flexible transparent tube passes through the gap between the two rotating components.

[0009] Preferably, the rotating component is a roller, and the limiting component is a bolt.

[0010] Preferably, the rotating component is a roller, one of the limiting components is a bolt, and the other limiting component is a handwheel. The handwheel is rotatably mounted on the support rod and is keyed to the rotating component.

[0011] Preferably, a shim is provided between the rotating component and the support plate, and the shim is sleeved on the support rod.

[0012] Preferably, the clamping mechanism includes a fastener and a stainless steel wire. The fastener is fixedly sleeved on the flexible transparent tube. One end of the stainless steel wire is fixed to the fastener by winding. The other end of the stainless steel wire has a hook, which is detachably installed in the graduated hole.

[0013] Preferably, the fastener is a stainless steel hose clamp.

[0014] Compared with the prior art, the beneficial effects of this application are as follows:

[0015] (1) This application has the advantages of simple structure, easy installation and strong practicality. Based on the principle of U-shaped water seal, the condensate inside the condenser can be discharged automatically by using the height difference of the liquid to generate a negative pressure state without human intervention, which solves the problem of manual periodic drainage and reduces the labor intensity of personnel.

[0016] (2) Since there is no need to operate the valve, the problem of misoperation is avoided. The device as a whole has no electrical components and moving parts, and can operate without electricity, which reduces the operating cost.

[0017] (3) Since the liquid inside the condenser can be discharged autonomously, the problem of filter blockage caused by the liquid level inside the condenser exceeding the filter element is avoided. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0020] Figure 2 This is a side view of Embodiment 1 of the present utility model;

[0021] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention;

[0022] Figure 4 This is a schematic diagram of the clamping mechanism in Embodiment 2 of this utility model.

[0023] The reference numerals in the attached figures are as follows:

[0024] 1. Support plate; 2. Clamping mechanism; 3. Flexible transparent tube; 4. Drain valve; 5. Scale hole; 6. Support rod; 7. Rotating component; 8. Limiting component; 9. Gasket; 10. Fastener; 11. Stainless steel wire; 12. Hook. Detailed Implementation

[0025] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0026] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0027] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0028] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this application is in use. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0029] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0030] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0031] Example

[0032] like Figure 1 and Figure 2 As shown in the embodiment of this application, the negative pressure drainage device for a gas pretreatment system includes a support plate 1, a clamping mechanism 2, and a flexible transparent tube 3. The clamping mechanism 2 is disposed on the support plate 1. One end of the flexible transparent tube 3 is installed on the drainage valve 4, and the other end of the flexible transparent tube 3 is clamped and fixed by the clamping mechanism 2. The clamping mechanism 2 is located below the drainage valve 4. After liquid is injected into the flexible transparent tube 3, the flexible transparent tube 3 forms a U-shaped structure under the action of gravity.

[0033] During assembly, first inject an appropriate amount of water into the interior of the flexible transparent tube 3 to avoid air intake, which would affect the accuracy of the gas analysis data. Then, install one end of the flexible transparent tube 3 on the drain valve 4, and then use the clamping mechanism 2 to clamp the other end of the flexible transparent tube 3. Under the action of the weight of the flexible transparent tube 3 itself and the weight of the water, the flexible transparent tube 3 forms a U-shaped structure. Then, open the drain valve 4.

[0034] When in use, based on the principle of U-shaped water seal, the condensate inside the condenser can be discharged autonomously by using the negative pressure state generated by the height difference of the liquid without human intervention. This solves the problem of manual periodic drainage, reduces the labor intensity of personnel, and avoids the problem of misoperation because no valve operation is required. The whole device has no electrical components or moving parts and can operate without electricity, reducing operating costs. Since the liquid inside the condenser can be discharged autonomously, the problem of filter element clogging caused by the liquid level inside the condenser exceeding the filter element is avoided.

[0035] In this embodiment, the support plate 1 has several scale holes 5, which are symmetrically distributed in pairs. When it is necessary to change the height of the flexible transparent tube 3 away from the drain valve 4, the scale holes 5 can provide a reference, thereby improving the work efficiency.

[0036] In this embodiment, the clamping mechanism 2 includes a support rod 6 disposed opposite to the support plate 1, a rotating component 7 sleeved on the support rod 6, and a limiting component 8 that positions the rotating component 7 on the support rod 6. The flexible transparent tube 3 passes through the gap between the two rotating components 7. In specific implementation, the outer diameter of the flexible transparent tube 3 is larger than the distance between the two rotating components 7. On the one hand, the flexible transparent tube 3 can be clamped by frictional resistance. On the other hand, the height of the end of the flexible transparent tube 3 away from the drain valve 4 can be adjusted by rotating the rotating component 7 to adapt to changes in negative pressure.

[0037] In this embodiment, the rotating component 7 is a roller with anti-slip texture. The anti-slip texture increases frictional resistance and improves the stability of clamping the flexible transparent tube 3. The limiting component 8 is a bolt, which is easy to install and remove by fixing with bolts.

[0038] In another embodiment of this invention, the rotating component 7 is a roller, one of the limiting components 8 is a bolt, and the other limiting component 8 is a handwheel. The limiting component 8 is rotatably mounted on the support rod 6. The limiting component 8 is keyed to the rotating component 7. The limiting component 8 limits the rotating component 7 while facilitating the rotation of the limiting component 8.

[0039] In this embodiment, a gasket 9 is provided between the rotating component 7 and the support plate 1. The gasket 9 is sleeved on the support rod 6. The gasket 9 is made of nylon and is used to protect the support plate 1 and prevent the rotating component 7 from damaging the support plate 1.

[0040] Example 2

[0041] like Figure 3 and Figure 4 As shown, compared with Embodiment 1, the difference in this embodiment is that, in this embodiment, the clamping mechanism 2 includes a fastener 10 and a stainless steel wire 11. The fastener 10 is fixedly sleeved on the flexible transparent tube 3. One end of the stainless steel wire 11 is fixed to the fastener 10 by winding, and the other end of the stainless steel wire 11 has a hook 12. The hook 12 is detachably installed in the scale hole 5. In use, the fastener 10 is used to fix the end of the flexible transparent tube 3 away from the drain valve 4, and one end of the stainless steel wire 11 is fixed to the fastener 10 by winding. The other end of the stainless steel wire 11 is bent to form the hook 12, which is then hung in the scale hole 5. When the negative pressure changes, the position of the hole where the hook 12 is hung can be adjusted to adjust the liquid level of the U-shaped water seal.

[0042] In this embodiment, fastener 10 is a stainless steel hose clamp.

[0043] The above are merely preferred embodiments of this application and are not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A negative pressure drainage device for a gas pretreatment system, characterized in that: It includes a support plate, a clamping mechanism, and a flexible transparent tube. The clamping mechanism is disposed on the support plate. One end of the flexible transparent tube is mounted on a drain valve, and the other end of the flexible transparent tube is clamped and fixed by the clamping mechanism. The clamping mechanism is located below the drain valve. After liquid is injected into the flexible transparent tube, the flexible transparent tube forms a U-shaped structure under the action of gravity.

2. The negative pressure drainage device for a gas pretreatment system according to claim 1, characterized in that: The support plate has a number of scale holes, which are symmetrically distributed in pairs.

3. A negative pressure drainage device for a gas pretreatment system according to claim 1 or 2, characterized in that: The clamping mechanism includes a support rod disposed opposite to the support plate, a rotating component sleeved on the support rod, and a limiting component that positions the rotating component on the support rod. The flexible transparent tube passes through the gap between the two rotating components.

4. A negative pressure drainage device for a gas pretreatment system according to claim 3, characterized in that: The rotating component is a roller, and the limiting component is a bolt.

5. A negative pressure drainage device for a gas pretreatment system according to claim 3, characterized in that: The rotating component is a roller, one of the limiting components is a bolt, and the other limiting component is a handwheel. The handwheel is rotatably mounted on the support rod and is keyed to the rotating component.

6. A negative pressure drainage device for a gas pretreatment system according to claim 3, characterized in that: A shim is provided between the rotating component and the support plate, and the shim is sleeved on the support rod.

7. A negative pressure drainage device for a gas pretreatment system according to claim 2, characterized in that: The clamping mechanism includes a fastener and a stainless steel wire. The fastener is fixedly sleeved on the flexible transparent tube. One end of the stainless steel wire is fixed to the fastener by winding. The other end of the stainless steel wire has a hook, which is detachably installed in the graduated hole.

8. A negative pressure drainage device for a gas pretreatment system according to claim 7, characterized in that: The fastener is a stainless steel hose clamp.

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