CN208465655U - Jet stream mixing rifle - Google Patents
Jet stream mixing rifle Download PDFInfo
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- CN208465655U CN208465655U CN201820566798.XU CN201820566798U CN208465655U CN 208465655 U CN208465655 U CN 208465655U CN 201820566798 U CN201820566798 U CN 201820566798U CN 208465655 U CN208465655 U CN 208465655U
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- negative pressure
- pressure cavity
- jet stream
- screw thread
- stream mixing
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Abstract
The utility model provides a kind of jet stream mixing rifle, it includes shell, jet pipe and handle, wherein, the negative pressure cavity, mixing chamber and diffusion admittance being connected are successively arranged in shell, water filling port, inlet and gas injection port are equipped on shell at negative pressure cavity, it is equipped with liquid outlet on shell at one end of negative pressure cavity in diffusion admittance, water filling port is oppositely arranged with liquid outlet, and what be can be removably mounted at gas injection port is connected with sealing cover；What jet pipe can be removably mounted is connected at water filling port, and the first end of jet pipe is equipped with nozzle, and nozzle protrudes into negative pressure cavity, and nozzle is along being in undergauge shape towards the direction of liquid outlet；The first end of handle is connected with the shell at inlet, and reservoir channel is equipped with inside handle, and reservoir channel is connected by inlet with negative pressure cavity.
Description
Technical field
The utility model relates to oil-gas mining technical field, in particular to a kind of jet stream mixing rifle.
Background technique
In the tertiary oil recovery field in oilfield exploitation later period, water plugging and profile controlling transfer drive, chemical flooding, polymer displacement of reservoir oil are generally taken
Technology improves oil recovery rate.The commonly used crosslinking agent of polymer gel class plugging agent is that formaldehyde or methenamine are molten at present
Liquid, scene usually dosing method is one is using manual weighing or with by the way of spoon estimation, and still, this dosing method is easy
So that formaldehyde or methenamine volatilization or spill to the ground of well site, stimulate that worker's is mucocutaneous, causes to be envious, eye is itched, throat
Or situations such as nasal cavity is uncomfortable, headache, and serious person leads to human body acute poisoning generation；Another kind application more is using between making up a prescription
The mode of Automatic Dosing, still, defect of this mode by mixing arrangement itself, not only time-consuming and laborious, production efficiency bottom, and
Required equipment is huge, needs to be arranged individual weighing area, and failure occurs frequently, and not convenient for safeguarding, needs professional
It is operated.
Utility model content
Operator caused by being able to solve the purpose of the utility model is to provide one kind because of formaldehyde or methenamine volatilization
Acute poisoning accident problem, and jet stream mixing rifle time saving and energy saving, high-efficient, easy to maintain.
A kind of in order to achieve the above object, the utility model provides jet stream mixing rifle comprising:
Shell, is successively arranged the negative pressure cavity, mixing chamber and diffusion admittance being connected in the shell, in institute on the shell
It states and is equipped with water filling port, inlet and gas injection port at negative pressure cavity, in the diffusion admittance backwards to the negative pressure cavity on the shell
Liquid outlet is equipped at one end, the water filling port is oppositely arranged with the liquid outlet, and being connected with for can be removably mounted at the gas injection port is close
Capping；
Jet pipe, what the jet pipe can be removably mounted is connected at the water filling port, and the first end of the jet pipe is equipped with nozzle, described
Nozzle protrudes into the negative pressure cavity, and the nozzle along towards the direction of the liquid outlet be in undergauge shape；
The first end of handle, the handle is connected at the inlet with the shell, is equipped with inside the handle
Reservoir channel, the reservoir channel are connected by the inlet with the negative pressure cavity.
Jet stream mixing rifle as described above, wherein the circulation for controlling the reservoir channel is connected on the handle
The valve of area.
Jet stream mixing rifle as described above, wherein the negative pressure cavity along being in expanding shape towards the direction of the liquid outlet, and
The face area towards the liquid outlet of the negative pressure cavity is greater than the cross-sectional area of the mixing chamber.
Jet stream mixing rifle as described above, wherein the diffusion admittance edge is towards the direction of the liquid outlet in expanding shape.
Jet stream mixing rifle as described above, wherein the inner wall of the second end of the jet pipe is equipped with for connecting water injection pipe
The jet pipe internal screw thread of line.
Jet stream mixing rifle as described above, wherein the second end of the handle is connected with hose coupling.
Jet stream mixing rifle as described above, wherein the flange for connecting feed liquor pipeline is connected at the liquid outlet.
Jet stream mixing rifle as described above, wherein air injection pipe is equipped at the gas injection port, the outer peripheral surface of the air injection pipe is set
Have an air injection pipe external screw thread, the bottom surface of the sealing cover is equipped with sealing cover internal screw thread, by the air injection pipe external screw thread with it is described close
Closure internal threads are threadedly engaged, and the sealing cover connects with the air injection pipe.
Jet stream mixing rifle as described above, wherein the outer peripheral surface of the jet pipe is equipped with jet pipe external screw thread, at the water filling port
Equipped with water filling port internal screw thread, pass through being threadedly engaged for the jet pipe external screw thread and the water filling port internal screw thread, the jet pipe and institute
Water filling port is stated to connect.
Jet stream mixing rifle as described above, wherein the handle is an integral structure with the shell.
Compared with prior art, as follows the advantages of the utility model:
The jet stream mixing rifle of the utility model can carry out sterilization processing to water quality by the way that gas injection port is arranged；
The jet stream mixing rifle of the utility model, by reducing the circulation area of the nozzle in insertion negative pressure cavity, so that self-spray
The water flow that mouth sprays forms high-velocity flow, and the air of nozzle periphery is taken away by high-velocity flow, so that vacuum is formed in negative pressure cavity,
Formaldehyde or methenamine solution are inhaled into negative pressure cavity under the action of negative pressure cavity pull of vacuum by the reservoir channel of handle, and
After being mixed in mixing chamber with oil field reinjection water, is sprayed after reducing flow velocity via diffusion admittance, realize the closed of formalin
Dosing, during not only avoiding traditional artificial dosing method, the volatilization of formaldehyde or methenamine solution is caused to worker's body
Injury, and eliminate in the past make up a prescription during automatic dosing apparatus so that the jet stream mixing rifle of the utility model has
Time saving and energy saving, high-efficient, equipment volume is small, trouble-free advantage；
The jet stream mixing rifle of the utility model avoids powder or particle in intracavitary heap by smoothing processing inside negative pressure cavity
Mechanical breakdown is manufactured into, influences to match liquid efficiency；
The jet stream mixing rifle of the utility model, structure is simple, easy to operate, applied widely, is used not only for adjusting
The closed dosing of crosslinking agent during water blockoff, transfer drive is cutd open, while can be used for the surfactant solutions such as demulsifier, thinner
Dosing reduces labor intensity of workers, in turn avoids worker operation randomness bring error.
Detailed description of the invention
Following drawings are only intended to schematically illustrate and explain the present invention, does not limit the model of the utility model
It encloses.Wherein:
Fig. 1 is the structural schematic diagram for the jet stream mixing rifle that an embodiment of the present invention provides；
Fig. 2 is the portion A enlarged structure schematic diagram in Fig. 1；
Fig. 3 is the structural schematic diagram of shell in jet stream mixing rifle shown in FIG. 1.
Drawing reference numeral explanation:
1, shell；11, negative pressure cavity；12, mixing chamber；13, diffusion admittance；14, water filling port；15, inlet；16, gas injection port；
161, air injection pipe；17, liquid outlet；2, sealing cover；3, jet pipe；31, nozzle；4, handle；41, reservoir channel；42, valve；5, soft
Pipe fitting；6, flange.
Specific embodiment
In order to have clearer understanding to the technical solution of the utility model, purpose and effect, now in conjunction with Detailed description of the invention sheet
The specific embodiment of utility model.
As depicted in figs. 1 and 2, the utility model provides a kind of jet stream mixing rifle comprising shell 1, jet pipe 3 and handle
4, wherein the negative pressure cavity 11, mixing chamber 12 and diffusion admittance 13 being connected are successively arranged in shell 1, it is preferred that negative pressure cavity 11
The centerline collineation of center line, the center line of mixing chamber 12 and diffusion admittance 13, and the inner surface of negative pressure cavity 11 is smooth surface,
Mechanical breakdown is caused in intracavitary accumulation to avoid powder or particle, influences to match liquid efficiency, is equipped with note at negative pressure cavity 11 on shell 1
The mouth of a river 14, inlet 15 and gas injection port 16 are equipped with liquid outlet in diffusion admittance 13 on shell 1 at one end of negative pressure cavity 11
17, water filling port 14 is oppositely arranged with liquid outlet 17, i.e. water filling port 14 and liquid outlet 17 is arranged on the opposite end surface of shell 1,
What be can be removably mounted at gas injection port 16 is connected with sealing cover 2, and sealing cover 2 can play sealing function to gas injection port 16, and need to water
When matter carries out sterilization processing, sealing cover 2 can be removed, snorkel is connected to the sealing of gas injection port 16, sterilization gas passes through ventilation
Pipe enters in negative pressure cavity 11, carries out sterilization processing to the water quality in negative pressure cavity 11；What jet pipe 3 can be removably mounted is connected to water filling port 14
The first end of place, the center line of jet pipe 3 and the centerline collineation of negative pressure cavity 11, jet pipe 3 is equipped with nozzle 31, and nozzle 31 protrudes into negative pressure
In chamber 11, the spout of nozzle 31 is towards liquid outlet 17, and nozzle 31 is in undergauge shape along the direction towards liquid outlet 17, that is, is reduced
Circulation area at nozzle 31, in this way, in the case that total flow is constant in jet pipe 3, due to reducing the circulation at nozzle 31
Area, therefore the water flow flowed out from nozzle 31 will improve flow velocity, form high-velocity flow, and high-velocity flow flows through negative pressure cavity 11
When, the air of 31 periphery of nozzle can be taken away so that negative pressure cavity 11 in formed vacuum, the first end of handle 4 at inlet 15 with
Shell 1 is connected, and reservoir channel 41 is equipped with inside handle 4, and reservoir channel 41 is connected by inlet 15 with negative pressure cavity 11,
The second end of hand 4 can be connected with the container of accommodating formalin or methenamine solution, formalin or methenamine solution
It is inhaled into negative pressure cavity 11 under the action of 11 pull of vacuum of negative pressure cavity, and flows into mixing chamber 12 under the drive of high-velocity flow
Interior, formalin or methenamine solution mix in mixing chamber 12 with oil field reinjection water, and spray via diffusion admittance 13.
Further, in order to guarantee the sealing performance of jet stream mixing rifle, as shown in figure 3, handle 4 and shell 1 are integral type knot
Work is effectively guaranteed to avoid the gap leakage of formalin or methenamine solution between handle 4 and shell 1 in structure
The safety of personnel in use.
The jet stream mixing rifle of the utility model can carry out sterilization processing to water quality by the way that gas injection port 16 is arranged；Pass through reduction
It is inserted into the circulation area of the nozzle 31 in negative pressure cavity 11, so that forming high-velocity flow from the water flow that nozzle 31 sprays, passes through high speed
Water flow takes away the air of 31 periphery of nozzle, so that forming vacuum in negative pressure cavity 11, formalin or methenamine solution are in negative pressure
It is inhaled into negative pressure cavity 11 under the action of 11 pull of vacuum of chamber by the reservoir channel 41 of handle 4, and is being mixed with oil field reinjection water
It closes in chamber 12 after mixing, is sprayed after reducing flow velocity via diffusion admittance 13, realize the closed dosing of formalin, not only avoid
During traditional artificial dosing method, the volatilization of formalin or methenamine solution injures to caused by worker's body, and
And eliminate in the past make up a prescription during automatic dosing apparatus so that the jet stream mixing rifle of the utility model have it is time saving and energy saving,
High-efficient, equipment volume is small, trouble-free advantage.
Further, it for the ease of control formalin or the velocity of liquid assets of methenamine solution, is connected on handle 4 useful
In the valve 42 of the circulation area of control reservoir channel 41, by the circulation area control suction formalin for changing beam channel
Or the speed of methenamine solution, so that formalin or the ratio satisfaction of methenamine solution and oil field reinjection water mixing make
With requiring.
In a kind of preferred embodiment of the utility model, negative pressure cavity 11 is along the direction towards liquid outlet 17 in expanding
Shape, such structure enable to negative pressure cavity 11 that can form vacuum state in a short time, and the direction of negative pressure cavity 11 goes out liquid
The face area of mouth 17 is greater than the cross-sectional area of mixing chamber 12, i.e., forms step in negative pressure cavity 11 and 12 junction of mixing chamber,
Step energy PARA FORMALDEHYDE PRILLS(91,95) solution or methenamine solution play certain barrier effect, to reduce the stream of formaldehyde or methenamine solution
Speed enables formalin or methenamine solution to mix in mixing chamber 12 with oil field reinjection water.
Further, in order to improve the mixability of formalin or methenamine solution and oil field reinjection water, diffusion admittance
13 along being in expanding shape towards the direction of liquid outlet 17, and mixed liquor can reduce flow velocity in diffusion admittance 13, further mixes, with
It is flowed out after aldehyde or methenamine solution are sufficiently mixed with oil field reinjection water.
In a kind of embodiment of the utility model, since waterflood-transmission line is typically provided with waterflood-transmission line external screw thread, in order to
Connect convenient for jet stream mixing rifle with waterflood-transmission line, is equipped with the spray for connecting waterflood-transmission line in the inner wall of the second end of jet pipe 3
Pipe internal screw thread (not shown) is threadedly coupled by jet pipe internal screw thread with the line of spiral shell outside waterflood-transmission line, so that jet stream mixing rifle
Connection between waterflood-transmission line is simple and convenient.
Further, as shown in Figure 1, the second end of handle 4 is connected with hose coupling 5, hose is connected by hose coupling 5,
Container by hose connection equipped with formalin or methenamine solution, so that being equipped with formalin or methenamine solution
Container and handle 4 between connection it is simple and convenient.
Alternatively, handle 4 second end outer peripheral surface be arranged external screw thread, by external screw thread be equipped with formaldehyde or methenamine it is molten
The container threads of liquid connect.
Further, in order to enable the connection between jet stream mixing rifle and profile control agent Agitation Tank feed liquor pipeline is simple and convenient, such as
Shown in Fig. 2, the flange 6 for connecting feed liquor pipeline is connected at liquid outlet 17, jet stream mixing rifle is matched by flange 6 with profile control agent
Flow container feed liquor pipeline is connected and fixed, so that the installation of jet stream mixing rifle is simple and convenient, it is time saving and energy saving.
Further, connect for the ease of gas injection port 16 with sealing cover 2 or snorkel, as shown in figure 3, at gas injection port 16
Equipped with air injection pipe 161, air injection pipe 161 is connected by gas injection port 16 with negative pressure cavity 11, and the outer peripheral surface of air injection pipe 161 is equipped with gas injection
The bottom surface of pipe external screw thread, sealing cover 2 is equipped with sealing cover internal screw thread, is matched by air injection pipe external screw thread and the screw thread of sealing cover internal screw thread
It closing, sealing cover 2 connects with air injection pipe 161, and when needing to carry out sterilization processing to water quality, can easily remove sealing cover 2,
The internal screw thread of snorkel is threadedly coupled with the air injection pipe external screw thread of air injection pipe 161, that is, may make gas successively via snorkel,
Air injection pipe 161, gas injection port 16 enter in negative pressure cavity 11, and are threadedly coupled simple and convenient, and make tearing open for sealing cover 2 and snorkel
Fill it is simple to operate, it is time saving and energy saving.
Further, the outer peripheral surface of jet pipe 3 is equipped with 3 external screw thread of jet pipe, is equipped with 14 internal screw thread of water filling port at water filling port 14, passes through
3 external screw thread of jet pipe is threadedly engaged with 14 internal screw thread of water filling port, and jet pipe 3 connects with water filling port 14, and threaded connection is simple and convenient, from
And it is simple to operate that the dismounting of jet pipe 3 is filled, it is time saving and energy saving.
The use process of jet stream mixing rifle provided by the utility model is illustrated with reference to the accompanying drawing:
As shown in Figure 1, when in use, the first end of hose is connected to the sealing of the hose coupling 5 of the second end of handle 4,
In container of the second end insertion equipped with formalin or methenamine solution of hose, and it is molten so that the second end of hose is protruded into formaldehyde
In liquid or methenamine solution, jet pipe internal screw thread is threadedly coupled with waterflood-transmission line external screw thread, while will be by flange 6 by jet stream
Mixing rifle is connected and fixed with profile control agent Agitation Tank feed liquor pipeline；Oil field reinjection water is passed through into waterflood-transmission line, water flow passes through jet pipe 3
Nozzle 31 spray into negative pressure cavity 11 in, due to nozzle 31 along the direction towards liquid outlet 17 be in undergauge shape, that is, reduce nozzle 31
The circulation area at place, therefore the water flow flowed out from nozzle 31 will improve flow velocity, forms high-velocity flow, and high-velocity flow flow through it is negative
When pressing chamber 11, the air of 31 periphery of nozzle can be taken away, so that vacuum is formed in negative pressure cavity 11, at this point, formalin or Wu Luotuo
Product solution is inhaled into negative pressure cavity 11 under the action of 11 pull of vacuum of negative pressure cavity, and mixing is flowed under the action of high-velocity flow
In chamber 12, since the face area towards liquid outlet 17 of negative pressure cavity 11 is greater than the cross-sectional area of mixing chamber 12, i.e., in negative pressure
Chamber 11 and 12 junction of mixing chamber form step, and step energy PARA FORMALDEHYDE PRILLS(91,95) solution or methenamine solution play barrier effect, with drop
The flow velocity of low formalin or methenamine solution enables formalin or methenamine solution and oil field reinjection water mixed
Mixing in chamber 12 is closed, mixed mixed liquor flows into diffusion admittance 13 in mixing chamber 12, since diffusion admittance 13 goes out along direction
The direction of liquid mouth 17 is in expanding shape, enables mixed liquor to reduce flow velocity by diffusion admittance 13, further mixes, be sufficiently mixed
Formalin or methenamine solution and oil field reinjection water afterwards passes through the inflow profile control agent Agitation Tank feed liquor pipeline of liquid outlet 17.
It should be noted that sealing cover 2 is set at gas injection port 16 certainly when needing to carry out sterilization processing to water quality
It is removed in air injection pipe 161, the internal screw thread of snorkel is threadedly coupled with the air injection pipe external screw thread of air injection pipe 161, that is, may make gas
Body successively enters in negative pressure cavity 11 via snorkel, air injection pipe 161, gas injection port 16, and after completing sterilization operation, snorkel is torn open
Under, sealing cover 2 is screwed on air injection pipe 161 again.
In conclusion the jet stream mixing rifle of the utility model can carry out sterilization processing to water quality by the way that gas injection port is arranged；
The jet stream mixing rifle of the utility model, by reducing the circulation area of the nozzle in insertion negative pressure cavity, so that self-spray
The water flow that mouth sprays forms high-velocity flow, and the air of nozzle periphery is taken away by high-velocity flow, so that vacuum is formed in negative pressure cavity,
Formaldehyde or methenamine solution are inhaled into negative pressure cavity under the action of negative pressure cavity pull of vacuum by the reservoir channel of handle, and
After being mixed in mixing chamber with oil field reinjection water, is sprayed after reducing flow velocity via diffusion admittance, realize the closed of formalin
Dosing, during not only avoiding traditional artificial dosing method, the volatilization of formaldehyde or methenamine solution is caused to worker's body
Injury, and eliminate in the past make up a prescription during automatic dosing apparatus so that the jet stream mixing rifle of the utility model has
Time saving and energy saving, high-efficient, equipment volume is small, trouble-free advantage；
The jet stream mixing rifle of the utility model avoids powder or particle in intracavitary heap by smoothing processing inside negative pressure cavity
Mechanical breakdown is manufactured into, influences to match liquid efficiency；
The jet stream mixing rifle of the utility model, structure is simple, easy to operate, applied widely, is used not only for adjusting
The closed dosing of crosslinking agent during water blockoff, transfer drive is cutd open, while can be used for the surfactant solutions such as demulsifier, thinner
Dosing reduces labor intensity of workers, in turn avoids worker operation randomness bring error.
The above descriptions are merely exemplary embodiments of the present utility model, the model being not intended to limit the utility model
It encloses.Any those skilled in the art, made equivalent change under the premise of not departing from the conceptions and principles of the utility model
Change and modify, should belong to the range of the utility model protection.And it should be noted that the utility model each component part
It is not limited in above-mentioned overall applicability, each technical characteristic described in the specification of the utility model can select according to actual needs
It selects one and individually uses or select the multinomial use that combines, therefore, the utility model covers and this crime in the nature of things
The related other combinations of bright point and concrete application.
Claims (10)
1. a kind of jet stream mixing rifle, which is characterized in that the jet stream mixing rifle includes:
Shell, is successively arranged the negative pressure cavity, mixing chamber and diffusion admittance being connected in the shell, in described negative on the shell
It presses and is equipped with water filling port, inlet and gas injection port at chamber, in the diffusion admittance backwards to one end of the negative pressure cavity on the shell
Place is equipped with liquid outlet, and the water filling port is oppositely arranged with the liquid outlet, and what be can be removably mounted at the gas injection port is connected with sealing cover；
Jet pipe, what the jet pipe can be removably mounted is connected at the water filling port, and the first end of the jet pipe is equipped with nozzle, the nozzle
Protrude into the negative pressure cavity, and the nozzle along towards the direction of the liquid outlet be in undergauge shape；
The first end of handle, the handle is connected at the inlet with the shell, and fluid injection is equipped with inside the handle
Channel, the reservoir channel are connected by the inlet with the negative pressure cavity.
2. jet stream mixing rifle according to claim 1, which is characterized in that be connected on the handle for controlling the note
The valve of the circulation area in liquid channel.
3. jet stream mixing rifle according to claim 1, which is characterized in that the negative pressure cavity is along towards the side of the liquid outlet
To be in expanding shape, and the face area towards the liquid outlet of the negative pressure cavity be greater than the mixing chamber cross-sectional area.
4. jet stream mixing rifle according to claim 1, which is characterized in that the diffusion admittance is along towards the liquid outlet
Direction is in expanding shape.
5. jet stream mixing rifle according to claim 1, which is characterized in that the inner wall of the second end of the jet pipe, which is equipped with, to be used
In the jet pipe internal screw thread of connection waterflood-transmission line.
6. jet stream mixing rifle according to claim 1, which is characterized in that the second end of the handle is connected with hose and connects
Head.
7. jet stream mixing rifle according to claim 1, which is characterized in that be connected at the liquid outlet for connecting feed liquor
The flange of pipeline.
8. jet stream mixing rifle according to claim 1, which is characterized in that be equipped with air injection pipe, the note at the gas injection port
The outer peripheral surface of tracheae is equipped with air injection pipe external screw thread, and the bottom surface of the sealing cover is equipped with sealing cover internal screw thread, passes through the air injection pipe
External screw thread is threadedly engaged with the sealing cover internal screw thread, and the sealing cover connects with the air injection pipe.
9. jet stream mixing rifle according to claim 1, which is characterized in that the outer peripheral surface of the jet pipe is equipped with the outer spiral shell of jet pipe
Line is equipped with water filling port internal screw thread at the water filling port, is matched by the screw thread of the jet pipe external screw thread and the water filling port internal screw thread
It closes, the jet pipe connects with the water filling port.
10. jet stream mixing rifle according to any one of claim 1 to 9, which is characterized in that the handle and the shell
It is an integral structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820566798.XU CN208465655U (en) | 2018-04-20 | 2018-04-20 | Jet stream mixing rifle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820566798.XU CN208465655U (en) | 2018-04-20 | 2018-04-20 | Jet stream mixing rifle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208465655U true CN208465655U (en) | 2019-02-05 |
Family
ID=65206606
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820566798.XU Active CN208465655U (en) | 2018-04-20 | 2018-04-20 | Jet stream mixing rifle |
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| Country | Link |
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| CN (1) | CN208465655U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067792A (en) * | 2019-04-26 | 2019-07-30 | 北京勤泽鸿翔冶金科技有限公司 | A kind of gas-liquid biphase fluid ejector pipe, transmitting device and transmission method with it |
| CN113266398A (en) * | 2021-06-18 | 2021-08-17 | 中煤科工集团重庆研究院有限公司 | Spray gun and method for reducing rebound rate of wet sprayed concrete |
| CN114272742A (en) * | 2021-12-23 | 2022-04-05 | 广东名绿环保科技股份有限公司 | Preparation method and device of aldehyde-removing free radical spray |
-
2018
- 2018-04-20 CN CN201820566798.XU patent/CN208465655U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110067792A (en) * | 2019-04-26 | 2019-07-30 | 北京勤泽鸿翔冶金科技有限公司 | A kind of gas-liquid biphase fluid ejector pipe, transmitting device and transmission method with it |
| CN113266398A (en) * | 2021-06-18 | 2021-08-17 | 中煤科工集团重庆研究院有限公司 | Spray gun and method for reducing rebound rate of wet sprayed concrete |
| CN113266398B (en) * | 2021-06-18 | 2023-11-07 | 中煤科工集团重庆研究院有限公司 | Spray gun and method for reducing rebound rate of wet sprayed concrete |
| CN114272742A (en) * | 2021-12-23 | 2022-04-05 | 广东名绿环保科技股份有限公司 | Preparation method and device of aldehyde-removing free radical spray |
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