CN202531114U

CN202531114U - Chemical reagent injection device

Info

Publication number: CN202531114U
Application number: CN201220117074XU
Authority: CN
Inventors: 杨平
Original assignee: Shenzhen Hundred Million Prestige Bodyguard Fluid Controls Co Ltd
Current assignee: Shenzhen Hundred Million Prestige Bodyguard Fluid Controls Co Ltd
Priority date: 2012-03-26
Filing date: 2012-03-26
Publication date: 2012-11-14
Anticipated expiration: 2022-03-26

Abstract

The utility model provides a chemical reagent injection device. The device comprises a liquid tank, a conveying pump, a filter and a liquid conveying pipeline, wherein the liquid conveying pipeline is connected with a pneumatic pump; after liquid is pumped by the liquid conveying pipeline from the liquid tank, the liquid passes through the pneumatic pump and then is output; as a pressure source, the pneumatic pump is used for providing power to liquid conveying; and a compressed air or natural gas input end is connected with the pneumatic pump, so that the compressed air or natural gas is output to the pneumatic pump as power drive. According to the utility model, an output pressure can be adjusted in a stepless way; the chemical reagent injection device provided by the utility model has the advantages of small equipment volume, light weight and convenience in outdoor operation; as the pneumatic pump is driven by the compressed air, low energy consumption is achieved; and as the pneumatic pump can be driven by the natural gas, the chemical reagent injection device provided by the utility model is suitable for outdoor places without a power supply or an air source on site.

Description

The chemical agent injection device

Technical field

The utility model relates to oil exploration equipment, says so exactly to be used for the equipment or the device of petroleum industry quantitative filling chemical agent in recover the oil (gas) well and pipeline.

Background technology

In petroleum industry, often need be in recover the oil (gas) well and pipeline quantitative filling chemical agent, being used for de-plugging thaws, and makes oil (gas) well recover operate as normal, environment for use is oil recovery (gas) scene in field.

And the employing output pressure that adds chemical agent at present be the high-voltage electric plunger displacement pump of 140MPa as pressure source, system pressure is regulated and is adopted manual safety overflow valve to regulate.The electrical plunger pump that prior art adopts, the motor-driven that required power 22KW is above, equipment collective is big, and Heavy Weight is not suitable for field work; System's output pressure is regulated and is leaned on safety overflow valve to regulate, and regulates inconvenient; When keeping system pressure if desired, electrodynamic pump can not quit work, and need keep running status always, and energy consumption is big.If stop the work of electrodynamic pump, when system needs ftercompction, need operating personnel's opening device again.

In a word, existing chemical agent adds equipment, needs specific power, uses inconvenience, is not suitable for field work.

Summary of the invention

Therefore, for addressing the above problem, the purpose of the utility model provides a kind of chemical agent injection device, and this appliance arrangement volume is little, in light weight, makes things convenient for field work.

Another purpose of the utility model is to provide a kind of chemical agent injection device, and this device adopts compressed air-driven, and energy consumption is low, and can adopt natural gas to drive, and suitable field condition does not have the use occasion of power supply or source of the gas.

Another purpose of the utility model provides a kind of chemical agent injection device, and this apparatus structure is simple, reliable and stable, and with low cost, is convenient to implement.

For achieving the above object, the scheme that the utility model is taked is following.

A kind of chemical agent injection device; This device includes liquid case, delivery pump, strainer and liquid conducting pipes, it is characterized in that liquid conducting pipes is connected to air driven pump, liquid conducting pipes extracts liquid from the liquid case after; Through air driven pump; Export, air driven pump is as pressure source, for the liquid conveying provides power again; Compressed air or natural gas input termination air driven pump make compressed air or natural gas be defeated by air driven pump as power drive.

Said air driven pump, it is connected with Pneumatic valve, and Pneumatic valve is arranged between input and the air driven pump, realizes the control to air driven pump through Pneumatic valve.

Said compressed air or natural gas, its input is connected with pressure regulator valve earlier, is connected on the air driven pump.

Said compressed air or natural gas input also are connected with strainer, so that compressed air and natural gas are filtered, filter out the impurity in the source of the gas, keep the pure of the interior gas of air driven pump.

Behind the above-mentioned pressure regulator valve, also be connected with stop valve, stop valve connects air driven pump again, can control the keying of air driven pump through stop valve.

The beneficial effect that adopts such scheme to produce is: output pressure can be realized step-less adjustment; Equipment volume is little, and is in light weight, makes things convenient for field work; Air driven pump adopts compressed air-driven, and energy consumption is low, and can adopt natural gas to drive, and suitable field condition does not have the use occasion of power supply or source of the gas.

And the utility model volume is little, and is simple in structure, practical, convenient operating maintenance.

Description of drawings

The structural representation that Fig. 1 implements for the utility model.

Among the figure, 1 is compressed gas source, and 2 is that strainer one, 3 is a pressure regulator valve, and 4 is that pressure meter one, 5 is a stop valve, and 6 is Pneumatic valve, and 7 is air driven pump, and 8 is pressure-relief valve, and 9 is that pressure meter two, 10 is that strainer two, 11 is the liquid case, and 12 is overflow valve, and 13 is the chemical agent inlet.

The specific embodiment

Shown in accompanying drawing, the practical implementation of the utility model is elaborated.

Chemical agent injection device as shown in Figure 1, that the utility model is realized mainly includes liquid case 11, strainer 2 10 and liquid conducting pipes; Liquid conducting pipes is connected to air driven pump 7; Liquid conducting pipes through air driven pump 7, outputs to chemical agent inlet 13 after from liquid case 11, extracting liquid.

At input, air driven pump is as pressure source, for the liquid conveying provides power; Compressed air input 1 connects air driven pump 7, makes compressed air (or natural gas) be defeated by air driven pump as power drive.Compressed air input 1 is taken over filter 1 earlier, the gas of importing is filtered, and then connect pressure regulator valve 3, to regulate through 3 pairs of gas pressures of pressure regulator valve; Connect stop valve 5 again, receive at last on the air driven pump 7.

Wherein the front portion of air driven pump 7 has Pneumatic valve 6, and stop valve 5 is connected with Pneumatic valve 6 earlier, and Pneumatic valve 6 (also can comprise electromagnetic valve) is linked on the air driven pump 7 again, through the control of Pneumatic valve 7 realizations to air driven pump.

Air driven pump 7 also is provided with pressure-relief valve 8 and overflow valve 12 on the liquid conducting pipes of chemical agent inlet 13 output chemical agent, another termination liquid case 11 of pressure-relief valve 8 is to be back to ducted chemical agent in the liquid case 11; Simultaneously, on this pipeline, also be provided with pressure meter 29.

Generally speaking, pressure regulator valve 3 back are provided with a pressure meter 1, with the variation of monitor force at any time.

The utility model adopts air driven pump as pressure source; Air driven pump adopts compressed air as power drive (also can adopt the on-the-spot natural gas purification decompression rear drive of gas production); Output pressure size and the proportional relation of drive air pressure; Drive air pressure size adopts pressure regulator valve control, and output pressure can step-less adjustment.Air driven pump can quit work when system pressure reaches desired value automatically, when system pressure descends, again can be pneumatic automatically, and realize automatic ftercompction.

Concrete use is following.

1, with filling it up with chemical agent in the liquid case 11.

2, compressed air gas source 1 is connected to this device, and this device is connected to chemical agent inlet 13.

3, close pressure-relief valve 8, open stop valve 5.

4, slowly regulate pressure regulator valve 3 clockwise, this moment, air driven pump 7 was started working, along with pressure regulator valve 3 output compressed air pressures increase; The output pressure of air driven pump 7 also can raise; Observe pressure meter one 4 pressure and reach when needing pressure, stop to regulate pressure regulator valve 3, and with pressure regulator valve 3 lockings.This moment, air driven pump 7 can stop action, and system pressure can remain on this pressure always, and when revealing or other reason when causing system pressure to descend, air driven pump 7 can start automatically, the beginning ftercompction, and when pressure added to initial set value, air driven pump 7 stopped action again.

5, after reagent injects and accomplishes, close stop valve 5,, open pressure-relief valve 8, the system pressure removal is got final product pressure regulator valve 3 counterclockwise homings.

Pressure regulator valve 5 is directly controlled to air driven pump output compressed air or natural gas, makes output pressure can realize step-less adjustment; The composition device of the utility model is few, and equipment volume is little, and is in light weight, makes things convenient for field work; Air driven pump adopts compressed air-driven, and energy consumption is low, and can adopt natural gas to drive, and suitable field condition does not have the use occasion of power supply or source of the gas.

And this device can be realized automatic ftercompction, does not need personnel on duty, can be automatically opening device repeatedly.

In a word; The above is merely the preferred embodiment of the utility model; Not in order to restriction the utility model, any modification of being done within all spirit at the utility model and the principle, be equal to and replace and improvement etc., all should be included within the protection domain of the utility model.

Claims

1. chemical agent injection device, this device includes liquid case, delivery pump, strainer and liquid conducting pipes, it is characterized in that liquid conducting pipes is connected to air driven pump, and liquid conducting pipes through air driven pump, is exported after from the liquid case, extracting liquid again; Compressed air or natural gas input termination air driven pump.

2. chemical agent injection device as claimed in claim 1 is characterized in that said air driven pump, and it is connected with Pneumatic valve, and Pneumatic valve is arranged between input and the air driven pump.

3. chemical agent injection device as claimed in claim 2 is characterized in that said compressed air or natural gas, and its input is connected with pressure regulator valve earlier, is connected on the air driven pump.

4. chemical agent injection device as claimed in claim 1 is characterized in that said compressed air or natural gas input, also is connected with strainer.

5. chemical agent injection device as claimed in claim 3, it is characterized in that above-mentioned pressure regulator valve after, also be connected with stop valve, stop valve connects air driven pump again.