Drainage device of pipeline type external gas detector

Abstract

The utility model relates to the technical field of pipeline type gas detector installation, and aims to provide a pipeline type external gas detector drainage device which is characterized in that a fixing flange is installed on a ventilating pipeline through a fixing screw, a funnel-shaped collector is arranged, the wind direction of a horn mouth is opposite to that of the ventilating pipeline, the resistance is increased, and an inlet pipeline connected with the bottom of the collector is connected with a pipeline. An inlet of the float flowmeter is connected with an inlet pipeline, an outlet of the float flowmeter is connected with an inlet of the gas detector, whether the inlet pipeline is blocked or not is judged through flow reading, the detection reliability is ensured, and the gas enters the gas detector to be detected; the tail end of the outlet pipeline connected with the outlet of the gas detector is in the same 90-degree right angle with the wind direction of the ventilating pipeline, so that the resistance is reduced, finally, replacement of different types of gas detectors is realized, and meanwhile, the detection reliability of the gas detector is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of pipeline type gas detector installation, in particular to a pipeline type external gas detector drainage device. Background Art

[0002] The offshore oil 119 pipeline gas detector adopts the built-in sensor installation method and is directly installed on the fixed ventilation duct through a fixed flange. Due to management needs, it needs to be replaced with an external gas detector. Although the product price has been reduced, it cannot be directly replaced. Therefore, a pipeline external gas detector drainage device is designed to improve the applicability of new product replacement. Utility Model Content

[0003] The utility model aims to provide a pipeline type external gas detector drainage device, which is used to solve the problems raised in the background technology and is convenient for promotion.

[0004] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is:

[0005] A pipeline-type external gas detector drainage device comprises a ventilation duct, wherein the ventilation duct is provided with a fixed flange, and the fixed flange is respectively provided with a through hole 1 and a through hole 2, wherein the through hole 1 is connected with an inlet pipeline, and one end of the inlet pipeline located in the ventilation duct is fixedly connected with a collector, and the end of the inlet pipeline away from the ventilation duct is connected with a float flowmeter, the inlet of the float flowmeter is fixedly connected to the inlet pipeline, the outlet of the float flowmeter is connected to the gas detector, the outlet of the float flowmeter is fixedly connected to the inlet of the gas detector, and the outlet of the gas detector is fixedly connected to the outlet pipeline.

[0006] Furthermore, the collector is funnel-shaped, and the bell mouth of the collector is opposite to the wind direction of the ventilation duct.

[0007] Furthermore, the end of the outlet pipeline is at a right angle to the wind direction of the ventilation duct.

[0008] Furthermore, the fixing flange is connected to the ventilation duct via fixing screws.

[0009] Furthermore, the outlet pipeline is connected through the second through hole.

[0010] The beneficial effects of the utility model are:

[0011] The utility model discloses a pipeline type external gas detector drainage device, which is used to install a fixing flange on a ventilation duct by fixing screws, and passes through a funnel-shaped collector, and the bell mouth is opposite to the wind direction of the ventilation duct to increase resistance. The inlet pipeline connected to the bottom of the collector is used to lead out the gas, the inlet of the float flowmeter is connected to the inlet pipeline, and the outlet is connected to the inlet of the gas detector. Whether the inlet pipeline is blocked can be judged by flow reading to ensure the reliability of detection. The gas enters the gas detector for detection, and the end of the outlet pipeline connected to the outlet of the gas detector is at a right angle of 90 degrees in the same direction as the wind direction of the ventilation duct to reduce resistance, and finally realizes the replacement of gas detectors of different models, while improving the reliability of gas detector detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a schematic diagram of the structure of a pipeline-type external gas detector drainage device of the utility model;

[0013] Figure 2 This is a schematic diagram of a fixed flange structure of a pipeline-type external gas detector drainage device of the utility model;

[0014] Reference table of reference numerals:

[0015] 1. Ventilation duct; 2. Fixed flange; 3. Through hole 1; 4. Through hole 2; 5. Inlet pipeline; 6. Collector; 7. Float flowmeter; 8. Gas detector; 9. Outlet pipeline; 10. Fixing screws. DETAILED DESCRIPTION

[0016] The specific implementation of the utility model is further described below in conjunction with the accompanying drawings. The same parts are represented by the same figure numbers. It should be noted that the words "front", "rear", "left", "right", "upper" and "lower" used in the following description refer to directions in the accompanying drawings, and the words "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively.

[0017] In order to make the content of the utility model easier to understand, the technical solution in the embodiment of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiment of the utility model, wherein the same parts are represented by the same reference numerals.

[0018] Depend on Figure 1 to Figure 2As shown, a pipeline-type external gas detector drainage device comprises a ventilation duct 1, a fixed flange 2 is provided on the ventilation duct 1, a through hole 1 3 and a through hole 2 4 are respectively provided on the fixed flange 2, an inlet pipeline 5 is connected through the through hole 1 3, one end of the inlet pipeline 5 located in the ventilation duct 1 is fixedly connected with a collector 6, and one end of the inlet pipeline 5 away from the ventilation duct 1 is connected with a float flowmeter 7, the inlet of the float flowmeter 7 is fixedly connected to the inlet pipeline 5, the outlet of the float flowmeter 7 is connected to a gas detector 8, the outlet of the float flowmeter 7 is fixedly connected to the inlet of the gas detector 8, the outlet of the gas detector 8 is fixedly connected to an outlet pipeline 9, and the outlet pipeline 9 is connected through the through hole 2 4. The flow reading of the float flowmeter 7 can be used to judge whether the inlet pipeline 5 is blocked, thereby ensuring the reliability of detection, realizing the replacement of gas detectors 8 of different models, and improving the reliability of detection by the gas detector 8.

[0019] The collector 6 is in a funnel shape, and the bell mouth of the collector 6 is opposite to the wind direction of the ventilation duct 1 . The funnel-shaped collector 6 is used to increase resistance, so as to facilitate the use of the gas in the ventilation duct 1 to be drawn out.

[0020] The end of the outlet pipeline 9 is at a right angle to the wind direction of the ventilation duct 1, which can reduce resistance.

[0021] The fixing flange 2 is connected to the ventilation duct 1 by fixing screws 10. When installing, pay attention to the wind direction of the ventilation duct 1. If the wind direction changes, adjust the direction by fixing the flange 2 to facilitate installation.

[0022] The above are only preferred embodiments of the present utility model patent and are not intended to limit the present utility model patent. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model patent shall be included in the protection scope of the present utility model patent.

Claims

1. A pipeline type external gas detector drainage device, comprising a ventilation duct (1), characterized in that: The ventilation duct (1) is provided with a fixed flange (2), and the fixed flange (2) is respectively provided with a through hole 1 (3) and a through hole 2 (4). The through hole 1 (3) is connected with an inlet pipeline (5), and one end of the inlet pipeline (5) located in the ventilation duct (1) is fixedly connected with a collector (6), and the end of the inlet pipeline (5) away from the ventilation duct (1) is connected with a float flowmeter (7), the inlet of the float flowmeter (7) is fixedly connected to the inlet pipeline (5), the outlet of the float flowmeter (7) is connected to a gas detector (8), the outlet of the float flowmeter (7) is fixedly connected to the inlet of the gas detector (8), and the outlet of the gas detector (8) is fixedly connected to an outlet pipeline (9).

2. A pipeline type external gas detector drainage device according to claim 1, characterized in that: The collector (6) is funnel-shaped, and the bell mouth of the collector (6) is opposite to the wind direction of the ventilation duct (1).

3. A pipeline type external gas detector drainage device according to claim 1, characterized in that: The end of the outlet pipeline (9) is at a right angle to the wind direction of the ventilation duct (1).

4. A pipeline type external gas detector drainage device according to claim 1, characterized in that: The fixing flange (2) is connected to the ventilation duct (1) via fixing screws (10).

5. A pipeline type external gas detector drainage device according to claim 1, characterized in that: The outlet pipeline (9) is connected through the second through hole (4).

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