CN209084412U - A kind of air supply system that can prevent powder suck-back - Google Patents
A kind of air supply system that can prevent powder suck-back Download PDFInfo
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- CN209084412U CN209084412U CN201821543929.9U CN201821543929U CN209084412U CN 209084412 U CN209084412 U CN 209084412U CN 201821543929 U CN201821543929 U CN 201821543929U CN 209084412 U CN209084412 U CN 209084412U
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Abstract
The utility model discloses the air supply systems that one kind can prevent powder suck-back, including supply air line, valve, connecting line and automatic pressure regulating device, supply air line is equipped at least two gas outlets, valve is housed at gas outlet, valve is equipped with connecting line, the automatic pressure regulating device being mounted on supply air line includes motor-driven valve, controller, first pressure sensor and second pressure sensor, pressure difference between the opening degree and first pressure sensor and second pressure sensor of motor-driven valve is directly proportional, it can prevent when other gas outlets are thrown open, air pressure reduces suddenly in supply air line, and the phenomenon that causing powder suck-back in the connecting line supplied generation.
Description
Technical field
The utility model relates to a kind of air supply systems, and the air supply system of powder suck-back can be prevented more particularly to one kind.
Background technique
As urbanization process is constantly accelerated, infrastructure construction in china is improved day by day, green, energy-saving and environmental protection gradually at
For the theme in epoch.In recent years, in all parts of the country actively to formulate concrete green production standard criterion, carry out ready-mixed concrete green
Production.Traditional cement bin feeding is often to be generated by the air compressor on transport vehicle by powder carry to filler bin
The noise of high-decibel now all replaces conventional method using the method for central gas supply, greatly reduces noise to meet green production
Pollution.
Powder central gas supply system generally provides gas pressure by air compressor machine, and the gas that air compressor machine generates is stored in
In gas tank, supplied through supply air line.One facilities of mix storied building of Concrete Mixing Station is commonly equipped with 4-5 filler bin, is used for
Store different types of cementitious material or powder additive, it is therefore desirable to be equipped with multiple air supply openings to meet feeding demand.Production
Peak period, it is often necessary to which multiple air supply openings use simultaneously, and air supply opening all uses hand-operated valve to be controlled at present, when a steam supply valve
When in use state, if open other one or more steam supply valves suddenly, it is unexpected to will cause the gas supply pipe pressure just supplied
The problem of rapid drawdown makes delivery pipe powder suck-back occur, easily causes powder blockage, it is unfavorable for the stability of powder carry.
The Chinese patent of Publication No. CN104197194A discloses a kind of " mixing plant and its air supply system ", including supplies
Gas main road and the gas supply branch, air compressor machine, air accumulator, pressure sensor, the controller that are attached thereto etc..The principal benefits of the patent
It is to be avoided that air compressor machine is frequently opened and worked long hours, reduces the loss to air compressor machine.
The Chinese patent of Publication No. CN205187357U discloses a kind of " powder delivery system and mixing plant ", including spiral shell
Rod-type air compressor machine, air accumulator, drier, filler bin, control cabinet etc..The patent is fed using screw-rod air compressor instead of powder
The included diesel compressor of device, to reduce the noise of system, while can prevent wharf explosion or emit storehouse.
The Chinese patent of Publication No. CN205471648U discloses " a kind of powder transport vehicle central gas supply system ", including
Air compressor, caisson, soundproof room, supply air line.The patent uses central gas supply, the benefit with noise reduction.
When the unresolved gas supply overpressure of three above patent is too low, the phenomenon that be easy to causeing powder suck-back.
Utility model content
The utility model provides a kind of air supply system that can prevent powder suck-back, asks which solve above-mentioned
Topic.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of gas supply that can prevent powder suck-back
System, including supply air line, connecting line and gas generator, the supply air line are connected to the gas generator, the supply air line
At least two gas outlets are equipped with, which is equipped with valve, and the quantity of the connecting line and the quantity of the gas outlet are opposite
It answers, which corresponds with the gas outlet and one end of the connecting line is connect with the valve on the gas outlet, should
Upstream on supply air line in each gas outlet is equipped with an automatic pressure regulating device, and the automatic pressure regulating device includes electronic
Valve, the controller for driving the electronic threshold switch, first pressure sensor and second pressure sensor, the motor-driven valve,
One pressure sensor, second pressure sensor are arranged in the supply air line, the first pressure sensor and second pressure
Sensor is located at the left and right sides of the motor-driven valve, the first pressure sensor and second pressure sensor respectively with it is described
The air pressure that controller electrical connection, the opening degree of the motor-driven valve and the first pressure sensor and second pressure sensor detect
Difference is directly proportional.
Further, when the pressure value at first pressure sensor and second pressure sensor is equal, which is closed
It closes.
Further, the automatic pressure regulating device is arranged on the supply air line in such a way that screw thread is screwed on.
Further, the valve is manual ball valve.
Further, the automatic pressure regulating device further includes pressure gauge, the first pressure sensor and second pressure sensing
The atmospheric pressure value that device detects is shown on the pressure gauge.
Further, the supply air line includes the two gas supply branches for supplying main road and being separated by the gas supply main road,
Each gas supply branch road is equipped with two gas outlets.
Further, gas generator includes air compressor machine and air accumulator.
Compared to the prior art, the utility model has the following beneficial effects:
1, the utility model is equipped with supply air line, valve, connecting line and automatic pressure regulating device, and supply air line is equipped at least
Two gas outlets, valve is equipped at gas outlet, and valve is equipped with connecting line, the automatic pressure regulating device being mounted on supply air line
Including motor-driven valve, controller, first pressure sensor and second pressure sensor, the opening degree and first pressure of motor-driven valve are passed
Pressure difference between sensor and second pressure sensor is directly proportional, can prevent when other gas outlets are thrown open, air supply pipe
Air pressure reduces suddenly in road, and generation the phenomenon that cause powder suck-back in the connecting line supplied.
2, it is additionally provided with pressure gauge in the utility model, can be shown at first sensor and second sensor on pressure gauge
Pressure value, after connecting tube is connected with powder vehicle, staff preferentially opens the valve close to air generator, several times
Slow rotating valve, and pressure gauge is observed, when pressure gauge shows that two pressure are close, it can continue rotating valve, until valve
Door is safely opened, and can effectively keep the interior pressure of supply air line to stablize, to prevent powder suck-back.
The utility model is described in further detail with reference to the accompanying drawings and embodiments；But a kind of energy of the utility model
The air supply system of powder suck-back is enough prevented to be not limited to the embodiment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Specific embodiment
Embodiment, shown in Figure 1, one kind of the utility model can prevent the air supply system of powder suck-back, including
Supply air line 1, connecting line 2 and gas generator 3, the supply air line 1 are connected to the gas generator 3, set on the supply air line 1
There are two gas outlet 5, which is equipped with valve 6, and the quantity of the connecting line 2 is corresponding with the quantity of the gas outlet 5,
The connecting line 2 is corresponded with the gas outlet 5 and one end of the connecting line 2 is connect with the valve 6 on the gas outlet 5,
It is equipped with an automatic pressure regulating device 4 in the upstream of each gas outlet 5 on the supply air line 1, the automatic pressure regulating device 4 wraps
Motor-driven valve, the controller for driving the electronic threshold switch, first pressure sensor and second pressure sensor are included, it is described electronic
Valve, first pressure sensor, second pressure sensor are arranged in the supply air line 1, the first pressure sensor and
Two pressure sensors are located at the left and right sides of the motor-driven valve, the first pressure sensor and second pressure sensor difference
It is electrically connected with the controller, the opening degree of the motor-driven valve and the first pressure sensor and second pressure sensor detect
Air pressure difference it is directly proportional.The upstream of gas outlet 5 is equipped with automatic pressure regulating device 4, and so-called upstream refers to that automatic pressure regulating device 4 compares
Gas outlet 5 is closer to air generator, that is to say, that and the interior gas of supply air line 1 will first pass through automatic pressure regulating device 4, then
By flowing to gas outlet 5, flowed out by valve 6.When one of gas outlet 5 is supplying, the air pressure in supply air line 1 is big
In the air pressure of connecting line 2, if opening other valves 6 suddenly at this time, the air pressure in supply air line 1 reduces suddenly, connecting tube
The air pressure of air pressure and supply air line 1 in road 2 is constantly close, and first pressure sensor and second pressure sensor can believe this
Breath passes to controller, and the opening degree of controller control motor-driven valve makes reduction appropriate, when the two air pressure is identical, motor-driven valve
Thoroughly close.
In the present embodiment, when the pressure value at first pressure sensor and second pressure sensor is equal, the motor-driven valve
It closes.
In the present embodiment, the automatic pressure regulating device 4 is arranged on the supply air line 1 in such a way that screw thread is screwed on.
In the present embodiment, the valve 6 is manual ball valve.
In the present embodiment, the automatic pressure regulating device 4 further includes pressure gauge 7, the first pressure sensor and second pressure
The atmospheric pressure value that sensor detects is shown on the pressure gauge 7.
In the present embodiment, the supply air line 1 includes gas supply main road and supplies two gas supply that main road separates by described
Road, each gas supply branch road are equipped with two gas outlets 5.
During practical application is implemented, more air supply pipes and gas outlet 5 can be also designed according to actual needs, with
Meet the needs of actual condition.
In the present embodiment, gas generator 3 includes air compressor machine and air accumulator.
The utility model, in use, after powder vehicle is marched into the arena, transport vehicle driver is by connecting line 2 and powder vehicle
Connection, the preferential connecting line 2 using close to air accumulator, repeatedly slowly rotating valve 6 observes the reading of pressure gauge 7 at the same time
Number can continue to rotate valve 6, until fully opening when pressure gauge 7 shows that two readings are close.
Above-described embodiment only is used to further illustrate that one kind of the utility model can prevent the air supply system of powder suck-back,
But the utility model is not limited to embodiment, and made by the above technical examples according to the technical essence of the present invention
What simple modification, equivalent change and modification, each falls in the protection scope of technical solutions of the utility model.
Claims (7)
1. one kind can prevent the air supply system of powder suck-back, including supply air line, connecting line and gas generator, the gas supply
The pipeline connection gas generator, the supply air line are equipped at least two gas outlets, which is equipped with valve, the connection
The quantity of pipeline and the quantity of the gas outlet are corresponding, and the connecting line and the gas outlet correspond and the connecting line
One end is connect with the valve on the gas outlet, it is characterised in that: the upstream on the supply air line in each gas outlet is equipped with
One automatic pressure regulating device, the automatic pressure regulating device include motor-driven valve, the controller for driving the electronic threshold switch, first
Pressure sensor and second pressure sensor, the motor-driven valve, first pressure sensor, second pressure sensor are arranged at this
In supply air line, the first pressure sensor and second pressure sensor are located at the left and right sides of the motor-driven valve, described
First pressure sensor and second pressure sensor are electrically connected with the controller respectively, the opening degree of the motor-driven valve with should
First pressure sensor and the air pressure difference of second pressure sensor detection are directly proportional.
2. the air supply system according to claim 1 that powder suck-back can be prevented, it is characterised in that: when first pressure senses
When pressure value at device and second pressure sensor is equal, which is closed.
3. the air supply system according to claim 1 that powder suck-back can be prevented, it is characterised in that: the automatic Regulation dress
It sets and is arranged on the supply air line in such a way that screw thread is screwed on.
4. the air supply system according to claim 1 that powder suck-back can be prevented, it is characterised in that: the valve is manual
Ball valve.
5. the air supply system according to claim 1 that powder suck-back can be prevented, it is characterised in that: the automatic Regulation dress
Setting further includes pressure gauge, and the atmospheric pressure value that the first pressure sensor and second pressure sensor detect is shown in the pressure gauge
On.
6. the air supply system according to claim 1 that powder suck-back can be prevented, it is characterised in that: the supply air line packet
Include gas supply main road and by two gas supply branches separating of gas supply main road, each gas supply branch road be equipped with two described in go out
Port.
7. the air supply system according to claim 1 that powder suck-back can be prevented, it is characterised in that: gas generator includes
Air compressor machine and air accumulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821543929.9U CN209084412U (en) | 2018-09-20 | 2018-09-20 | A kind of air supply system that can prevent powder suck-back |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821543929.9U CN209084412U (en) | 2018-09-20 | 2018-09-20 | A kind of air supply system that can prevent powder suck-back |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209084412U true CN209084412U (en) | 2019-07-09 |
Family
ID=67116974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821543929.9U Active CN209084412U (en) | 2018-09-20 | 2018-09-20 | A kind of air supply system that can prevent powder suck-back |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209084412U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905148A (en) * | 2022-06-17 | 2022-08-16 | 深圳市马丁特尼尔技术有限公司 | Double-station board separator smoke extraction system and method |
| CN114905148B (en) * | 2022-06-17 | 2024-05-14 | 深圳市马丁特尼尔技术有限公司 | Smoke exhausting system and method for double-station board separator |
-
2018
- 2018-09-20 CN CN201821543929.9U patent/CN209084412U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114905148A (en) * | 2022-06-17 | 2022-08-16 | 深圳市马丁特尼尔技术有限公司 | Double-station board separator smoke extraction system and method |
| CN114905148B (en) * | 2022-06-17 | 2024-05-14 | 深圳市马丁特尼尔技术有限公司 | Smoke exhausting system and method for double-station board separator |
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