Drainage device for gas pipeline of clean room

Abstract

The utility model provides a drainage device for a gas pipeline of a clean room, which comprises a water guide pipe group, a water collecting tank, a pressure relief pipe and a drainage pipe, the water guide pipe group is used for being connected to the bottom of a main gas pipe and extends downwards, and an upper drainage valve is arranged on the water guide pipe group; the water collecting tank is connected to the lower end of the water guide pipe set and used for collecting condensate water. The pressure relief pipe is connected to the upper part of the water collecting tank, and a pressure relief valve is arranged on the pressure relief pipe; the drainage pipe is connected to the bottom of the water collecting tank and provided with a lower drainage valve. According to the drainage device for the gas pipeline of the clean room, the water collecting tank can be decompressed firstly, then condensate water is released into the receiving container through the drainage pipe, a floor drain is not needed, the clean room is prevented from being polluted due to drainage, and the cleanliness of the clean room is guaranteed.

Description

Technical Field

[0001] The utility model belongs to the technical field of clean room gas pipelines, and more specifically relates to a drainage device for clean room gas pipelines. Background Art

[0002] A clean room, also known as a dust-free workshop, clean room or clean room, refers to a closed room with strict requirements on air temperature, humidity, pressure, and especially dust concentration. Its main purpose is to ensure that some precision processes or experiments are carried out under specific environmental requirements to prevent any pollutants from affecting the product, process or experiment.

[0003] During the use of clean room gas pipelines, there is often a temperature difference between the inside and outside of the pipeline, which causes condensed water to appear in the gas pipeline. In order to prevent the condensed water from being retained in the gas pipeline for a long time and affecting the gas quality, floor drains are often pre-installed in the clean room, and a branch pipe connected to the floor drain is connected to the location where the condensed water accumulates in the gas pipeline. An on-off valve is installed on the branch pipe to release the condensed water by opening the on-off valve. However, due to the high pressure in the gas pipeline, when the on-off valve is opened, the high-pressure gas in the gas pipeline will blow the impurities in the floor drain back into the clean room, seriously affecting the cleanliness of the clean room. Utility Model Content

[0004] The embodiment of the utility model provides a drainage device for a clean room gas pipeline, which can first relieve the pressure of a water collecting tank and then release the condensed water into a receiving container through a drainage pipe without the need for a floor drain, thereby avoiding pollution of the clean room due to drainage and ensuring the cleanliness of the clean room.

[0005] To achieve the above-mentioned purpose, the technical solution adopted by the utility model is: to provide a drainage device for a clean room gas pipeline, including a water pipe group, a water collecting tank, a pressure relief pipe and a drainage pipe, the water pipe group is used to be connected to the bottom of the main gas pipe and extend downward, and an upper drainage valve is provided on the water pipe group; the water collecting tank is connected to the lower end of the water pipe group for collecting condensed water; the pressure relief pipe is connected to the upper part of the water collecting tank, and a pressure relief valve is provided on the pressure relief pipe; the drainage pipe is connected to the bottom of the water collecting tank, and a lower drainage valve is provided on the drainage pipe.

[0006] In one possible implementation, the water pipe group includes a first connecting pipe and a second connecting pipe, the first connecting pipe is connected to the bottom of the main air pipe and extends downward; the second connecting pipe is threadedly connected to the lower part of the first connecting pipe and extends downward, the upper drain valve is arranged on the second connecting pipe, and the water collecting tank is connected to the lower end of the second connecting pipe.

[0007] In some embodiments, a fixing sleeve is provided on the outer peripheral wall of the first connecting tube, the fixing sleeve has an insertion cavity with an opening toward the second connecting tube, a downwardly extending elastic member is connected to the bottom wall of the insertion cavity, and a tightening sleeve is provided on the outer peripheral wall of the second connecting tube for plugging with the insertion cavity, and the upper end of the tightening sleeve is abutted against the elastic member.

[0008] In some embodiments, the lower end of the elastic member is connected to a tightening ring that is slidably sleeved on the outer periphery of the first connecting tube, and the tightening sleeve is in abutment with the tightening ring.

[0009] In a possible implementation, a hose is connected to the lower end of the drain pipe.

[0010] In some embodiments, a containing box is provided below the hose, and a water inlet pipe detachably connected to the hose is provided on the top of the containing box.

[0011] In a possible implementation, a pressure gauge is provided on the upper portion of the water collecting tank.

[0012] In a possible implementation, a liquid level gauge extending in an up-down direction is provided on a side of the water collecting tank.

[0013] Compared with the prior art, the drainage device for the clean room gas pipeline provided in the present embodiment closes the upper drainage valve and opens the pressure relief valve to release the pressure in the water collecting tank, places the prepared receiving container under the drainage pipe, and finally opens the lower drainage valve to drain the water into the receiving container through the drainage pipe by gravity, thereby achieving the purpose of uniformly discharging condensed water in the main gas pipe. Not only does it not need to install an additional floor drain, it also avoids the impurities in the floor drain from contaminating the clean room due to high-pressure drainage, thereby ensuring the cleanliness of the clean room. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0015] Figure 1 A schematic diagram of a front view of a partially sectional structure of a drainage device for a clean room gas pipeline provided by an embodiment of the utility model in use;

[0016] Figure 2 For the utility model embodiment Figure 1 Schematic diagram of the local enlarged structure at point Ⅰ in the middle.

[0017] Among them, the reference numerals in the figure are:

[0018] 1. Main air pipe; 2. Sealing plate; 10. Water pipe assembly; 11. Upper drain valve; 12. First connecting pipe; 13. Second connecting pipe; 14. Fixing sleeve; 141. Insertion cavity; 15. Elastic member; 16. Tightening sleeve; 17. Tightening ring; 20. Water collecting tank; 30. Pressure relief pipe; 31. Pressure relief valve; 40. Drain pipe; 41. Lower drain valve; 50. Hose; 60. Receiving box; 61. Water inlet pipe; 70. Pressure gauge; 80. Liquid level gauge. DETAILED DESCRIPTION

[0019] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0020] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or indirectly on the other element. It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "back", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the utility model. The terms "first" and "second" are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "several" is two or more, unless otherwise clearly and specifically defined.

[0021] The gas pipeline comprises a main gas pipe 1 extending horizontally and a blocking plate 2 connected to the gas outlet end of the main gas pipe 1 .

[0022] See also Figure 1 and Figure 2 The drainage device for clean room gas pipeline provided by the utility model is now described. The drainage device for clean room gas pipeline includes a water pipe group 10, a water collecting tank 20, a pressure relief pipe 30 and a drainage pipe 40. The water pipe group 10 is used to be connected to the bottom of the main gas pipe 1 and extend downward, and an upper drainage valve 11 is provided on the water pipe group 10; the water collecting tank 20 is connected to the lower end of the water pipe group 10 for collecting condensed water; the pressure relief pipe 30 is connected to the upper part of the water collecting tank 20, and a pressure relief valve 31 is provided on the pressure relief pipe 30; the drainage pipe 40 is connected to the bottom of the water collecting tank, and a lower drainage valve 41 is provided on the drainage pipe 40.

[0023] The embodiment of the present application provides a drainage device for a clean room gas pipeline. During its actual use, the upper drainage valve 11 is normally open, the lower drainage valve 41 and the pressure relief valve 31 are normally closed, and the condensed water in the main air pipe 1 flows to the water collecting tank 20 through the water guide pipe group 10. When the condensed water in the water collecting tank 20 is collected to a certain extent, the staff first closes the upper drainage valve 11, and opens the pressure relief valve 31 to release the pressure in the water collecting tank 20, and places the prepared receiving container under the drainage pipe 40, and finally opens the lower drainage valve 41 to drain the water into the receiving container through the drainage pipe 40 by gravity, thereby achieving the purpose of uniformly discharging the condensed water in the main air pipe 1. Not only does it not need to install an additional floor drain, it also avoids the impurities in the floor drain from polluting the clean room due to high-pressure drainage, thereby ensuring the cleanliness of the clean room.

[0024] Compared with the prior art, the drainage device for the clean room gas pipeline provided in the present embodiment releases the pressure in the water collecting tank 20 by closing the upper drainage valve 11 and opening the pressure relief valve 31, placing the prepared receiving container under the drainage pipe 40, and finally opening the lower drainage valve 41 to drain the water into the receiving container through the drainage pipe 40 by gravity, thereby achieving the purpose of uniformly discharging condensed water in the main gas pipe 1. Not only does it not need to install an additional floor drain, it also avoids the impurities in the floor drain from contaminating the clean room due to high-pressure drainage, thereby ensuring the cleanliness of the clean room.

[0025] In a possible implementation, the water pipe assembly 10 is as follows: Figure 1 and Figure 2 The structure shown, see Figure 1 and Figure 2 The water pipe group 10 includes a first connecting pipe 12 and a second connecting pipe 13. The first connecting pipe 12 is connected to the bottom of the main air pipe 1 and extends downward; the second connecting pipe 13 is threadedly connected to the lower part of the first connecting pipe 12 and extends downward. The upper drain valve 11 is arranged on the second connecting pipe 13, and the water collecting tank 20 is connected to the lower end of the second connecting pipe 13.

[0026] Specifically, the first connecting pipe 12 is welded to the main air pipe 1 , and the upper end of the second connecting pipe 13 is located inside the first connecting pipe 12 and is threadedly connected to the first connecting pipe 12 , which facilitates the disassembly of the second connecting pipe 13 and components below the second connecting pipe 13 .

[0027] In some embodiments, see Figure 1 and Figure 2 A fixing sleeve 14 is fixedly provided on the outer peripheral wall of the first connecting tube 12, and the fixing sleeve 14 has an insertion cavity 141 opened toward the second connecting tube 13. A downwardly extending elastic member 15 is connected to the bottom wall of the insertion cavity 141. A tightening sleeve 16 that is plugged into the insertion cavity 141 is fixedly provided on the outer peripheral wall of the second connecting tube 13, and the upper end of the tightening sleeve 16 is abutted against the elastic member 15.

[0028] Specifically, in the process of gradually tightening the second connecting tube 13 and the first connecting tube 12, the tightening sleeve 16 gradually enters the insertion cavity 141, contacts the elastic member 15, and gradually compresses the elastic member 15, so that the elastic member 15 presses the second connecting tube 13 downward, thereby stably connecting the second connecting tube 13 and the first connecting tube 12 to avoid loosening of the connection between the second connecting tube 13 and the first connecting tube 12 due to vibration.

[0029] In some embodiments, see Figure 1 and Figure 2 The lower end of the elastic member 15 is connected with a tightening ring 17 which is slidably sleeved on the outer periphery of the first connecting pipe 12 , and the tightening sleeve 16 is in abutment with the tightening ring 17 .

[0030] Specifically, the provision of the tightening ring 17 can avoid direct contact between the tightening sleeve 16 and the elastic member 15 , thereby preventing the elastic member 15 from being damaged due to rotation and distortion of the tightening sleeve 16 .

[0031] In a possible implementation, the drain pipe 40 is as follows: Figure 1 The structure shown, see Figure 1 A hose 50 is connected to the lower end of the drain pipe 40 .

[0032] Specifically, the setting of the hose 50 allows the discharge point to be changed at will, making it convenient for the hose 50 to discharge the condensed water into the receiving container at the most appropriate position.

[0033] In some embodiments, see Figure 1 A receiving box 60 is provided below the hose 50 , and a water inlet pipe 61 detachably connected to the hose 50 is provided on the top of the receiving box 60 .

[0034] Specifically, the hose 50 is sleeved on the outer circumference of the water inlet pipe 61, and the condensed water in the water collecting tank 20 enters the containing box 60 through the drain pipe 40, the hose 50 and the water inlet pipe 61 in turn. After the discharge, the hose 50 and the water inlet pipe 61 are removed, and the containing box 60 can be moved to a predetermined position to discharge the condensed water inside, thereby avoiding contamination of the clean room caused by the discharge of the condensed water.

[0035] In a possible implementation, the water collecting tank 20 is Figure 1 The structure shown, see Figure 1 A pressure gauge 70 is provided on the upper portion of the water collecting tank 20 .

[0036] Specifically, the pressure gauge 70 is in communication with the water collecting tank 20 , which facilitates monitoring of the pressure in the water collecting tank 20 .

[0037] In a possible implementation, the water collecting tank 20 is Figure 1 The structure shown, see Figure 1 A liquid level gauge 80 extending in the up-down direction is provided on the side of the water collecting tank 20 .

[0038] Specifically, the liquid level meter 80 is used to monitor the liquid level in the water collecting tank 20 . When the liquid level reaches the vicinity of the pressure relief pipe 30 , the condensed water in the water collecting tank 20 is discharged in time to prevent the liquid level from exceeding the pressure relief pipe 30 .

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A drainage device for a clean room gas pipeline, the gas pipeline comprising a horizontally extending main gas pipe and a blocking plate connected to the gas outlet end of the main gas pipe, characterized in that: The drainage device comprises: A water pipe group, used to be connected to the bottom of the main air pipe and extend downward, and an upper drain valve is provided on the water pipe group; A water collecting tank connected to the lower end of the water pipe group and used to collect condensed water; a pressure relief pipe connected to the upper part of the water collecting tank, wherein the pressure relief pipe is provided with a pressure relief valve; and A drain pipe is connected to the bottom of the water collecting tank, and a lower drain valve is provided on the drain pipe.

2. The drainage device for a clean room gas pipeline according to claim 1, characterized in that: The water pipe group comprises: a first connecting pipe connected to the bottom of the main air pipe and extending downward; and The second connecting pipe is threadedly connected to the lower part of the first connecting pipe and extends downward. The upper drain valve is arranged on the second connecting pipe. The water collecting tank is connected to the lower end of the second connecting pipe.

3. The clean room gas pipeline drainage device according to claim 2, characterized in that: A fixing sleeve is provided on the outer peripheral wall of the first connecting tube, and the fixing sleeve has an insertion cavity with an opening toward the second connecting tube. An elastic member extending downward is connected to the bottom wall of the insertion cavity. A tightening sleeve is provided on the outer peripheral wall of the second connecting tube and is plugged into the insertion cavity, and the upper end of the tightening sleeve is abutted against the elastic member.

4. The drainage device for a clean room gas pipeline according to claim 3, characterized in that: The lower end of the elastic member is connected with a tightening ring which is slidably sleeved on the outer periphery of the first connecting pipe, and the tightening sleeve is in abutment with the tightening ring.

5. The drainage device for a clean room gas pipeline according to claim 1, characterized in that: The lower end of the drain pipe is connected with a hose.

6. The drainage device for a clean room gas pipeline according to claim 5, characterized in that: A containing box is arranged below the flexible pipe, and a water inlet pipe detachably connected to the flexible pipe is arranged on the top of the containing box.

7. The drainage device for a clean room gas pipeline according to claim 1, characterized in that: A pressure gauge is provided on the upper part of the water collecting tank.

8. The drainage device for a clean room gas pipeline according to claim 1, characterized in that: A liquid level gauge extending in the up-down direction is provided on the side of the water collecting tank.

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