CN209065502U - Automatic medicine adding device - Google Patents
Automatic medicine adding device Download PDFInfo
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- CN209065502U CN209065502U CN201820954329.5U CN201820954329U CN209065502U CN 209065502 U CN209065502 U CN 209065502U CN 201820954329 U CN201820954329 U CN 201820954329U CN 209065502 U CN209065502 U CN 209065502U
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- Prior art keywords
- connecting line
- dosing
- adding apparatus
- medicine adding
- automatic medicine
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- 239000003814 drug Substances 0.000 title claims abstract description 90
- 239000010865 sewage Substances 0.000 claims abstract description 43
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 22
- 229940079593 drug Drugs 0.000 claims abstract description 19
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 239000011248 coating agent Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 230000002401 inhibitory effect Effects 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 abstract description 18
- 239000003153 chemical reaction reagent Substances 0.000 abstract 1
- 238000005086 pumping Methods 0.000 abstract 1
- 230000007306 turnover Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 239000008139 complexing agent Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000000855 fungicidal effect Effects 0.000 description 1
- 239000000417 fungicide Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000008213 purified water Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
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- Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
Abstract
The utility model provides an automatic reagent feeding device for add treatment agent in the oilfield sewage to main conveying line, include: the connecting pipeline is arranged on the main conveying pipeline so that the oilfield sewage in the main conveying pipeline flows through the connecting pipeline, and a dosing port is formed in the pipe wall of the connecting pipeline; the first end of the dosing pipeline is communicated with the dosing port; the medicine storage tank is provided with a medicine storage cavity for storing treatment medicines, and the second end of the medicine feeding pipeline is communicated with the medicine storage cavity; the dosing pump is arranged on the dosing pipeline and used for pumping treatment agents in the drug storage tank into the connecting pipeline. The utility model provides an in-process that carries out the preliminary treatment to oil field sewage among the prior art, set up the treatment tank in the well site, occupied the great surface area in well site to influence fracturing operation vehicle's the problem of putting and business turn over.
Description
Technical field
The utility model relates to disposing polluted water in oil technical fields, in particular to a kind of automatic medicine adding apparatus.
Background technique
The recycling of the oilfield sewages such as fracturing outlet liquid and viscous crude purified water is prepared and is reused as fracturing fluid, can either be expired
Toe ring guaranteed request, and fracturing fluid can be reduced and prepare water consumption, to reduce the preparation cost of fracturing fluid.
It during being configured to fracturing fluid using oilfield sewage, needs to pre-process oilfield sewage, to adjust oil
The pH value of field sewage and oilfield sewage is carried out the processing such as to sterilize, in the prior art in order to be pre-processed to oilfield sewage, is
15 cubic metres of process tank is set in well site, is provided with blender on process tank, manually treatment agent is added into process tank,
It is stirred using blender.But due to being provided with 15 cubic metres of process tank in well site, occupy the biggish ground in well site
Area causes during fracturing work, influences putting and passing in and out for the pressure breaks working truck such as fracturing unit truck or manifold truck.
Utility model content
The main purpose of the utility model is to provide a kind of automatic medicine adding apparatus, in the prior art to oil field to solve
During sewage progress is pretreated, process tank is set in well site, the biggish floor area in well site is occupied, to influence pressure break
The problem of putting and pass in and out of working truck.
To achieve the goals above, one aspect according to the present utility model provides a kind of automatic medicine adding apparatus, is used for
Treatment agent is added in oilfield sewage into main line, comprising: main line is arranged in connecting line, connecting line
On, so that the oilfield sewage in main line flows through connecting line, dosing mouth is offered on the tube wall of connecting line；Chemical feed pipe
The first end on road, dosing pipe is connected to dosing mouth；Medicine storing pot, medicine storing pot have the drug storage chamber for storing treatment agent, add
The second end on pencil road is connected to drug storage chamber；Dosing pump, dosing pump are arranged on dosing pipe, and dosing pump is used for will be in medicine storing pot
Treatment agent be pumped in connecting line.
Further, automatic medicine adding apparatus further include: flowmeter, flowmeter are arranged on connecting line, and flowmeter is used for
The flow of oilfield sewage in real-time monitoring connecting line；Dosing pump is electrically connected with flowmeter, with dirty according to oil field in connecting line
The flow of the flow control dosing pipe of water.
Further, flow is calculated as electromagnetic flowmeter, the flow of oilfield sewage in the connecting line that flowmeter will test out
The pulse signal comprising flow information is converted to be sent out；Dosing pump is external control type electromagnetic dosing pump, and dosing pump is for receiving
Pulse signal, and according to the flow of pulse signal control dosing pipe.
Further, flowmeter is arranged between the sewage inlet end of connecting line and dosing mouth.
Further, medicine storing pot has the discharge gate being connected to drug storage chamber, and discharge gate is provided with the bottom of medicine storing pot, adds
The second end on pencil road is connected to discharge gate.
Further, automatic medicine adding apparatus further include: connecting flange, the both ends of connecting line are respectively arranged with a connection
Flange, connecting line are connect by connecting flange with main line.
Further, automatic medicine adding apparatus further includes check-valves, and check-valves is arranged on dosing pipe, and check-valves is opposite
It is arranged in medicine storing pot close to dosing mouth.
Further, connecting line is steel pipe, and the inner wall of connecting line is coated with corrosion-inhibiting coating, and dosing pipe is soft
Pipe.
Further, automatic medicine adding apparatus further includes bracket, and bracket and connecting line weld and connecting line are arranged in
Lower section.
Further, the internal diameter of connecting line and the internal diameter of main line are identical, the bore and connecting line of flowmeter
Internal diameter it is identical.
Using the technical solution of the utility model, connecting line is set on the main feedline road of oilfield sewage, and makes to lead
Oilfield sewage in transfer pipeline flows through connecting line, is pumped the treatment agent in medicine storing pot by dosing pipe using dosing pump
It send to connecting line, so that treatment agent be made to pre-process oilfield sewage.Automatic medicine adding apparatus provided by the present application is not
It needs that individual process tank is arranged in well site, but in the transmission process of oilfield sewage, directly it is connect to main line
Connecting line in transport process medicament, that is to say, that do not need occupy well site ground space, make so as to avoid in pressure break
During industry, putting and passing in and out for the pressure breaks working truck such as fracturing unit truck or manifold truck is influenced, the reality of automatic medicine adding apparatus is improved
The property used.
Detailed description of the invention
The accompanying drawings constituting a part of this application is used to provide a further understanding of the present invention, this is practical
Novel illustrative embodiments and their description are not constituteed improper limits to the present invention for explaining the utility model.
In the accompanying drawings:
Fig. 1 shows a kind of structural schematic diagram of the automatic medicine adding apparatus of alternative embodiment according to the present utility model.
Wherein, the above drawings include the following reference numerals:
10, connecting line；11, dosing mouth；20, dosing pipe；30, medicine storing pot；31, drug storage chamber；40, dosing pump；50, it flows
Meter；60, connecting flange；70, check-valves.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Be to the description only actually of at least one exemplary embodiment below it is illustrative, never as to this is practical
Novel and its application or any restrictions used.Based on the embodiments of the present invention, those of ordinary skill in the art are not having
Every other embodiment obtained under the premise of creative work is made, is fallen within the protection scope of the utility model.
In order to solve it is in the prior art to oilfield sewage carry out it is pretreated during, well site be arranged process tank, account for
With the biggish floor area in well site, to influence the problem of putting and pass in and out of fracturing work vehicle, the utility model is provided
A kind of automatic medicine adding apparatus.
As shown in Figure 1, the automatic medicine adding apparatus packet for treatment agent to be added in the oilfield sewage into main line
Connecting line 10, dosing pipe 20, medicine storing pot 30 and dosing pump 40 are included, main feedline road is arranged in connecting line 10, so that main
Oilfield sewage in transfer pipeline flows through connecting line 10, and dosing mouth 11, dosing pipe are offered on the tube wall of connecting line 10
20 first end is connected to dosing mouth 11, and medicine storing pot 30 has the drug storage chamber 31 for storing treatment agent, dosing pipe 20
Second end is connected to drug storage chamber 31, and dosing pump 40 is arranged on dosing pipe 20, and dosing pump 40 is used for the place in medicine storing pot 30
Reason medicament is pumped in connecting line 10.
In this application, connecting line 10 is set on the main feedline road of oilfield sewage, and is made in main line
Oilfield sewage flows through connecting line 10, is pumped to the treatment agent in medicine storing pot 30 by dosing pipe 20 using dosing pump 40
In connecting line 10, so that treatment agent be made to pre-process oilfield sewage.Automatic medicine adding apparatus provided by the present application is not required to
Individual process tank is set in well site, but in the transmission process of oilfield sewage, directly to connecting with main line
Transport process medicament in connecting line, that is to say, that do not need to occupy the ground space in well site, so as to avoid in fracturing work
In the process, putting and passing in and out for the pressure breaks working truck such as fracturing unit truck or manifold truck is influenced, the practical of automatic medicine adding apparatus is improved
Property.
Optionally, treatment agent includes PH regulator, fungicide and boron ion complexing agent.
As shown in Figure 1, automatic medicine adding apparatus further includes flowmeter 50, flowmeter 50 is arranged on connecting line 10, flow
Flow of the meter 50 for oilfield sewage in real-time monitoring connecting line 10；Dosing pump 40 is electrically connected with flowmeter 50, according to even
Take over the flow of the flow control dosing pipe 20 of oilfield sewage in road 10.In this way, in compared with the prior art manually at addition
The technical solution of medicament is managed, the application is cooperated using flowmeter 50 and dosing pump 40, improves the addition precision for the treatment of agent, together
When also improve into oilfield sewage add treatment agent the degree of automation, reduce and add treatment agent into oilfield sewage
Cost of labor.
As shown in Figure 1, flowmeter 50 is electromagnetic flowmeter, oilfield sewage in the connecting line 10 that flowmeter 50 will test out
Flow be converted to the pulse signal comprising flow information and be sent out；Dosing pump 40 is external control type electromagnetic dosing pump, dosing pump
40 are used for return pulse signal, and the flow of dosing pipe 20 is controlled according to pulse signal.In this way, passing through setting electromagnetic flowmeter
With external control type electromagnetic dosing pump, the addition essence that automatic medicine adding apparatus adds treatment agent into oilfield sewage is further improved
Degree.
As shown in Figure 1, flowmeter 50 is arranged between the sewage inlet end of connecting line 10 and dosing mouth 11.In this way, stream
The flow of oilfield sewage between the sewage inlet end and dosing mouth 11 of 50 real-time monitoring connecting line 10 of meter avoids passing through and adds
The treatment agent that medicine mouth 11 enters connecting line 10 influences the testing result of flowmeter 50, to guarantee adding for automatic medicine adding apparatus
Medicine precision.
In the embodiment not shown of the application one, medicine storing pot 30 has the discharge gate being connected to drug storage chamber 31, and discharge gate
It is provided with the bottom of medicine storing pot 30, the second end of dosing pipe 20 is connected to discharge gate.In this way, the place in drug storage chamber 31 can be made
Reason medicament enters under gravity in dosing pipe 20, and is delivered in connecting line 10 by dosing pipe 20, with Fig. 1
The technical solution that the dosing pipe 20 shown protrudes into the drug storage chamber 31 of medicine storing pot 30 is compared, and can be avoided the place in drug storage chamber 31
When the amount of reason medicament is less, the treatment agent in drug storage chamber 31 can not enter dosing pipe 20 under the action of dosing pump 40.
As shown in Figure 1, automatic medicine adding apparatus further includes connecting flange 60, the both ends of connecting line 10 are respectively arranged with one
Connecting flange 60, connecting line 10 are connect by connecting flange 60 with main line.In this way, connecting line 10 can pass through company
Acting flange 60 is removably quickly connect with main line, to be conducive to be promoted the installation effectiveness of automatic medicine adding apparatus.
As shown in Figure 1, automatic medicine adding apparatus further includes check-valves 70, check-valves 70 is arranged on dosing pipe 20, and only
It returns valve 70 and is arranged relative to medicine storing pot 30 close to dosing mouth 11.In this way, efficiently avoiding connecting tube by setting check-valves 70
Oilfield sewage in road 10 is back in medicine storing pot 30 by dosing pipe 20.
Optionally, connecting line 10 is steel pipe, and the inner wall of connecting line 10 is coated with corrosion-inhibiting coating, dosing pipe 20
For hose.In such manner, it is possible to avoid corroding connecting line 10 in acid oilfield sewage, making for automatic medicine adding apparatus is promoted
Use the service life.In addition, connecting line 10 is steel pipe, is conducive to that flowmeter 50 is installed on connecting line 10, avoids connecting line 10
The detection accuracy of wobble effects flowmeter 50.Dosing pipe 20 is hose, in this way, can be according to the position of medicine storing pot 30, flexibly
Length and the position of dosing pipe 20 is arranged in ground.
In the embodiment not shown of the application one, automatic medicine adding apparatus further includes bracket, and bracket and connecting line 10 weld
And the lower section of connecting line 10 is set.In this way, connecting line 10 is supported and is fixed by setting bracket, the company of preventing
Adapter tube road 10 is subjected to displacement, and influences the connective stability between connecting line 10 and main line, prevents connecting line 10 from shaking
The dynamic detection accuracy for influencing flowmeter 50.
Optionally, the internal diameter of connecting line 10 and the internal diameter of main line are identical, the bore and connecting tube of flowmeter 50
The internal diameter on road 10 is identical.In this way, being conducive to the installation of connecting line 10 and main line, be conducive to flowmeter 50 and connecting tube
The installation on road 10 avoids the internal diameter of connecting line 10 from being less than the internal diameter of main line, oilfield sewage is hindered smoothly to flow through connection
Pipeline 10.
Optionally, dosing pipe 20 is the PVC hose of DN40, and main line is the PVC hose of DN300, flowmeter
Bore is 300mm.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, operation, device, component and/or their combination.
Unless specifically stated otherwise, positioned opposite, the digital table of the component and step that otherwise illustrate in these embodiments
Up to the unlimited the scope of the utility model processed of formula and numerical value.Simultaneously, it should be appreciated that for ease of description, each shown in attached drawing
The size of a part is not to draw according to actual proportionate relationship.For skill known to person of ordinary skill in the relevant
Art, method and apparatus may be not discussed in detail, but in the appropriate case, and the technology, method and apparatus should be considered as awarding
Weigh part of specification.In shown here and discussion all examples, any occurrence should be construed as merely example
Property, not as limitation.Therefore, the other examples of exemplary embodiment can have different values.It should also be noted that similar
Label and letter similar terms are indicated in following attached drawing, therefore, once be defined in a certain Xiang Yi attached drawing, then with
In attached drawing afterwards do not need that it is further discussed.
In the description of the present invention, it should be understood that the noun of locality such as " front, rear, top, and bottom, left and right ", " laterally,
Vertically, vertically, it is horizontal " and " pushing up, bottom " etc. indicated by orientation or positional relationship be normally based on orientation or position shown in the drawings
Relationship is set, is merely for convenience of describing the present invention and simplifying the description, in the absence of explanation to the contrary, these nouns of locality
Do not indicate that and imply that signified device or element must have a particular orientation or be constructed and operated in a specific orientation, because
This should not be understood as the limitation to scope of protection of the utility model；The noun of locality " inside and outside " refers to the wheel relative to each component itself
Wide is inside and outside.
For ease of description, spatially relative term can be used herein, as " ... on ", " ... top ",
" ... upper surface ", " above " etc., for describing such as a device shown in the figure or feature and other devices or spy
The spatial relation of sign.It should be understood that spatially relative term is intended to comprising the orientation in addition to device described in figure
Except different direction in use or operation.For example, being described as if the device in attached drawing is squeezed " in other devices
It will be positioned as " under other devices or construction after part or construction top " or the device of " on other devices or construction "
Side " or " under other devices or construction ".Thus, exemplary term " ... top " may include " ... top " and
" in ... lower section " two kinds of orientation.The device can also be positioned with other different modes and (is rotated by 90 ° or in other orientation), and
And respective explanations are made to the opposite description in space used herein above.
In addition, it should be noted that, limiting components using the words such as " first ", " second ", it is only for be convenient for
Corresponding components are distinguished, do not have Stated otherwise such as, there is no particular meanings for above-mentioned word, therefore should not be understood as to this
The limitation of utility model protection range.
It should be noted that term used herein above is merely to describe specific embodiment, and be not intended to restricted root
According to the illustrative embodiments of the application.As used herein, unless the context clearly indicates otherwise, otherwise singular
Also it is intended to include plural form, additionally, it should be understood that, when in the present specification using term "comprising" and/or " packet
Include " when, indicate existing characteristics, step, work, device, component and/or their combination.
It should be noted that the description and claims of this application and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so that presently filed embodiment described herein can be in addition to illustrating herein
Or the sequence other than those of description is implemented.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of automatic medicine adding apparatus, which is characterized in that for treatment agent to be added in the oilfield sewage into main line,
Include:
Connecting line (10), the main feedline road is arranged in the connecting line (10), so that in the main line
The oilfield sewage flows through the connecting line (10), offers dosing mouth (11) on the tube wall of the connecting line (10)；
The first end of dosing pipe (20), the dosing pipe (20) is connected to the dosing mouth (11)；
Medicine storing pot (30), the medicine storing pot (30) have the drug storage chamber (31) for storing the treatment agent, the chemical feed pipe
The second end on road (20) is connected to the drug storage chamber (31)；
Dosing pump (40), the dosing pump (40) are arranged on the dosing pipe (20), and the dosing pump (40) is used for institute
The treatment agent in medicine storing pot (30) is stated to be pumped in the connecting line (10).
2. automatic medicine adding apparatus according to claim 1, which is characterized in that the automatic medicine adding apparatus further include:
Flowmeter (50), the flowmeter (50) are arranged on the connecting line (10), and the flowmeter (50) is for real-time
Monitor the flow of the connecting line (10) interior oilfield sewage；
The dosing pump (40) is electrically connected with the flowmeter (50), according to the stream of the connecting line (10) interior oilfield sewage
Amount controls the flow of the dosing pipe (20).
3. automatic medicine adding apparatus according to claim 2, which is characterized in that the flowmeter (50) is electromagnetic flowmeter,
The flow of the connecting line (10) interior oilfield sewage that the flowmeter (50) will test out is converted to comprising flow information
Pulse signal is sent out；The dosing pump (40) is external control type electromagnetic dosing pump, and the dosing pump (40) is described for receiving
Pulse signal, and according to the flow of the pulse signal control dosing pipe (20).
4. automatic medicine adding apparatus according to claim 2, which is characterized in that the flowmeter (50) is arranged in the connection
Between the sewage inlet end and the dosing mouth (11) of pipeline (10).
5. automatic medicine adding apparatus according to claim 1, which is characterized in that the medicine storing pot (30) has and the drug storage
The discharge gate of chamber (31) connection, and the discharge gate is provided with the bottom of the medicine storing pot (30), the dosing pipe (20)
Second end is connected to the discharge gate.
6. automatic medicine adding apparatus according to claim 1, which is characterized in that the automatic medicine adding apparatus further include:
Connecting flange (60), the both ends of the connecting line (10) are respectively arranged with the connecting flange (60), the company
Adapter tube road (10) is connect by the connecting flange (60) with the main line.
7. automatic medicine adding apparatus according to claim 1, which is characterized in that the automatic medicine adding apparatus further includes check-valves
(70), the check-valves (70) is arranged on the dosing pipe (20), and the check-valves (70) is relative to the medicine storing pot
(30) it is arranged close to the dosing mouth (11).
8. automatic medicine adding apparatus according to claim 1, which is characterized in that the connecting line (10) is steel pipe, and institute
The inner wall for stating connecting line (10) is coated with corrosion-inhibiting coating, and the dosing pipe (20) is hose.
9. automatic medicine adding apparatus according to claim 1, which is characterized in that the automatic medicine adding apparatus further includes bracket,
The bracket and the connecting line (10) weld and the lower section of the connecting line (10) are arranged in.
10. automatic medicine adding apparatus according to claim 2, which is characterized in that the internal diameter of the connecting line (10) and institute
The internal diameter for stating main line is identical, and the bore of the flowmeter (50) is identical as the internal diameter of the connecting line (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820954329.5U CN209065502U (en) | 2018-06-20 | 2018-06-20 | Automatic medicine adding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820954329.5U CN209065502U (en) | 2018-06-20 | 2018-06-20 | Automatic medicine adding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209065502U true CN209065502U (en) | 2019-07-05 |
Family
ID=67088997
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820954329.5U Active CN209065502U (en) | 2018-06-20 | 2018-06-20 | Automatic medicine adding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209065502U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112197175A (en) * | 2020-09-23 | 2021-01-08 | 中国石油天然气股份有限公司 | Automatic chemical feeding device for skid-mounted pipeline of oil field |
| CN111577230B (en) * | 2020-04-27 | 2021-11-19 | 西安交通大学 | Simple adding device for oil-gas field fracturing fluid auxiliary agent |
-
2018
- 2018-06-20 CN CN201820954329.5U patent/CN209065502U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111577230B (en) * | 2020-04-27 | 2021-11-19 | 西安交通大学 | Simple adding device for oil-gas field fracturing fluid auxiliary agent |
| CN112197175A (en) * | 2020-09-23 | 2021-01-08 | 中国石油天然气股份有限公司 | Automatic chemical feeding device for skid-mounted pipeline of oil field |
| CN112197175B (en) * | 2020-09-23 | 2022-07-05 | 中国石油天然气股份有限公司 | Automatic chemical feeding device for skid-mounted pipeline of oil field |
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