CN213633332U

CN213633332U - Outdoor movable air pump type gas monitor

Info

Publication number: CN213633332U
Application number: CN202022053535.9U
Authority: CN
Inventors: 刘晓博
Original assignee: Sichuan Salt Geology Drilling Team
Current assignee: Sichuan Salt Geology Drilling Team
Priority date: 2020-09-18
Filing date: 2020-09-18
Publication date: 2021-07-06
Anticipated expiration: 2030-09-18

Abstract

The utility model discloses a field movable air pump type gas monitor, which comprises a power supply, an air pump, an air inlet pipe, an exhaust pipe, a first gas sensor, a second gas sensor and a flowmeter, wherein the first gas sensor, the second gas sensor and the flowmeter are arranged between the exhaust pipe and an outlet of the air pump and are sequentially connected through connecting pipes; the air pump is characterized in that the front end of an air inlet pipe is connected with an air inlet cylinder, the side wall of the air inlet cylinder is provided with a plurality of air inlet holes which are uniformly arranged in a net shape, the rear end of the air inlet pipe is connected with an inlet of an air pump through a dehumidifier, and a liquid discharge pipe of the dehumidifier is provided with a pressure stabilizing valve; the utility model discloses can prevent effectively that impurity such as mud, water from inhaling in the gas circuit, avoid the gas circuit to block up, improve gas monitoring's stability and reliability greatly, can realize unmanned on duty.

Description

Outdoor movable air pump type gas monitor

Technical Field

The utility model relates to a gas monitor, especially be used for open-air removal air pump formula abandonment bittern gas well gas monitor.

Background

At present, the pump suction type is a common gas detection sampling method, the method has the advantages that the detection speed is high, sample gas can be processed in the process of automatically sucking air, for example, dehumidification and temperature change are realized, and the processed sample gas can meet the requirements of a high-precision sensor; meanwhile, air can be pumped in narrow holes to adapt to more environments; the dangerous area can be remotely pumped, and the operation safety is improved.

In a field environment, the conventional pump-suction type gas monitoring instrument faces a complex environment, particularly for a waste bittern gas well, an air suction inlet cylinder opening part is often required to be inserted into a humid and watery well, and even if an operator is very careful, sand dust and water are easily pumped at the liquid level in the well or on a water seepage well wall to cause that an air pump cannot normally work or an air passage is blocked to cause that air cannot be pumped; especially, when the field is continuously monitored in an unattended way, once water is sucked, the water cannot be timely treated, and the equipment cannot be continuously monitored.

Disclosure of Invention

The utility model aims at the above-mentioned not enough of prior art, provide an open-air removal air pump formula gas monitoring appearance, it can prevent effectively that impurity such as mud, water from inhaling during the gas circuit, avoids the gas circuit to block up, has improved gas monitoring's stability and reliability greatly, can realize unmanned on duty.

In order to achieve the purpose, the field movable air pump type gas monitor comprises a power supply, an air pump, an air inlet pipe, an exhaust pipe, a first gas sensor, a second gas sensor and a flowmeter, wherein the first gas sensor, the second gas sensor and the flowmeter are arranged between the exhaust pipe and an outlet of the air pump and are sequentially connected through connecting pipes; the air inlet pipe is characterized in that the front end of the air inlet pipe is connected with an air inlet cylinder, a plurality of air inlet holes which are uniformly arranged in a net shape are arranged on the side wall of the air inlet cylinder, the rear end of the air inlet pipe is connected with the inlet of a vacuum pump through a dehumidifier, and a pressure stabilizing valve is arranged on a liquid discharge pipe of the dehumidifier.

The utility model discloses during the use, even during the lower part of admission cylinder inserts the liquid level, the inlet port through the lateral wall can normally bleed, or when the admission cylinder lateral wall pastes on the wall of a well, breathe in from other sides, as long as the netted part of admission cylinder does not soak totally, impurity such as mud, water can not inhale in the gas circuit, before the dehumidifier is located the air pump, also can detach if a small amount of water gets into the gas circuit, avoid the gas circuit to block up, the stability of the gaseous flow of inhaling is guaranteed to the surge damping valve simultaneously, the stability and the reliability of gas monitoring have been improved, can realize unmanned on duty.

As a further improvement of the utility model, connecting pipes between the first gas sensor and the second gas sensor and between the first gas sensor and the exhaust pipe are provided with plug-in connectors; if the content of a certain component in the gas is too high, the first gas sensor can be damaged, the connecting pipe of the first gas sensor, which is connected with the front cartridge connector, is pulled out, and the front cartridge connector and the rear cartridge connector of the first gas sensor are directly communicated through the hose, so that the first gas sensor is prevented from being damaged due to the fact that the gas flows through the first gas sensor;

as a further improvement of the utility model, the inner cavity of the connecting end between the air inlet cylinder and the front end of the air inlet pipe is streamline; the resistance of the pipe wall for sucking air at the mouth part is ensured to be smaller;

as a further improvement of the utility model, the power supply, the air pump, the first gas sensor, the second gas sensor, the flowmeter and the dehumidifier are all arranged in the packing box, and one end of the liquid discharge pipe, the air inlet pipe and the exhaust pipe all passes through the packing box; the whole movement in the field is convenient;

to sum up, the utility model discloses can prevent effectively that impurity such as mud, water from inhaling during the gas circuit, avoid gas circuit to block up and gas sensor's damage, improve gas monitoring's stability and reliability greatly, can realize unmanned on duty.

Drawings

Fig. 1 is a front view of an embodiment of the present invention.

Fig. 2 is a partial view of the usage state of the embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, the field mobile air pump type gas monitor of the embodiment includes a power supply 1, an air pump 2, an air inlet pipe 3, an exhaust pipe 4, a gas sensor 5, a gas sensor 6 and a flowmeter 7 which are arranged between the outlet of the exhaust pipe 4 and the outlet of the air pump 2 and are connected in sequence through connecting pipes, and plug-in connectors 8 are arranged on the connecting pipes between the gas sensor 5 and the gas sensor 6 and between the gas sensor 5 and the exhaust pipe 4; the front end of the air inlet pipe 3 is connected with the air inlet cylinder 9, the side wall of the air inlet cylinder 9 is provided with a plurality of air inlet holes 10 which are uniformly arranged in a net shape, the inner cavity of the connecting end of the air inlet cylinder 9 and the front end of the air inlet pipe 3 is streamline, the rear end of the air inlet pipe 3 is connected with the inlet of the vacuum pump 2 through the dehumidifier 11, the liquid discharge pipe of the dehumidifier 11 is provided with a pressure stabilizing valve 12, the power supply 1, the air pump 2, the gas sensor 5, the gas sensor 6, the flowmeter 7 and the dehumidifier 11 are all arranged in the packing box 13, and the liquid discharge pipe.

The air inlet cylinder 9 is printed for 3d, is made of high-strength nylon materials and is slightly elastic so as to be connected with the air inlet pipe 3 better; when the utility model is used, as shown in figure 2, even if the lower part of the air inlet cylinder 9 is inserted into the liquid level 14, the air can be normally pumped through the air inlet hole 10 of the side wall, or the air is sucked from other sides when the side wall of the air inlet cylinder 9 is attached to the well wall 15, as long as the net part of the air inlet cylinder 9 is not completely immersed in water, impurities such as mud and water can not be sucked into the air path, and the dehumidifier 11 is positioned in front of the air pump 2, and can be removed if a small amount of water enters the air path, so as to avoid the air path blockage, and meanwhile, the pressure stabilizing valve 12 ensures the stability of the flow of the sucked air, thereby improving the stability and; the gas sensor 5 is used for monitoring methane, the range is 0-5000 ppm, the precision is +/-1%, the sensitivity is 1ppm, the gas sensor 6 is used for monitoring hydrogen sulfide, the range is 0-5 ppm, the precision is +/-1%, and the sensitivity is 0.01 ppm; if the condition that the concentration of methane is far beyond the range and hydrogen sulfide needs to be monitored independently is met, the connecting pipe connecting the gas sensor 5 and the front plug-in connector 8 is pulled out, the front plug-in connector 8 and the rear plug-in connector 8 of the gas sensor 5 are directly communicated through the hose 16, and the gas is prevented from flowing through the gas sensor 5 to cause damage; the inner cavity at the front end of the air inlet cylinder 9 is streamline, so that the resistance of the air suction pipe wall at the opening part is ensured to be smaller; the packing box 13 is convenient for moving in the field.

Claims

1. A field movable air pump type gas monitor comprises a power supply, an air pump, an air inlet pipe, an exhaust pipe, a first gas sensor, a second gas sensor and a flowmeter, wherein the first gas sensor, the second gas sensor and the flowmeter are arranged between the exhaust pipe and an outlet of the air pump and are sequentially connected through a connecting pipe; the air pump is characterized in that the front end of the air inlet pipe is connected with an air inlet cylinder, a plurality of air inlet holes which are uniformly arranged in a net shape are arranged on the side wall of the air inlet cylinder, the rear end of the air inlet pipe is connected with an inlet of an air pump through a dehumidifier, and a pressure stabilizing valve is arranged on a liquid discharge pipe of the dehumidifier.

2. A field mobile air pump gas monitor according to claim 1, wherein: and plug-in connectors are arranged on the connecting pipes between the first gas sensor and the second gas sensor and between the first gas sensor and the exhaust pipe.

3. The field mobile air pump gas monitor of claim 1 or 2, wherein: the inner cavity of the connecting end of the air inlet cylinder and the front end of the air inlet pipe is streamline.

4. The field mobile air pump gas monitor of claim 3, wherein: the power supply, the air pump, the first gas sensor, the second gas sensor, the flowmeter and the dehumidifier are all arranged in the packing box, and one end of the liquid discharge pipe, the air inlet pipe and the exhaust pipe penetrates through the packing box.