CN206522571U - A kind of boron trifluoride delivery pipe - Google Patents
A kind of boron trifluoride delivery pipe Download PDFInfo
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- CN206522571U CN206522571U CN201720216529.6U CN201720216529U CN206522571U CN 206522571 U CN206522571 U CN 206522571U CN 201720216529 U CN201720216529 U CN 201720216529U CN 206522571 U CN206522571 U CN 206522571U
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- transfer tube
- main body
- tube main
- nitrogen
- blown
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Abstract
The utility model provides a kind of boron trifluoride delivery pipe, including transfer tube main body and controller, gas access is connected with the left of the transfer tube main body, gas vent is connected with the right side of the transfer tube main body, has resistance heating wire in the surface of the transfer tube main body, nitrogen, which is connected with, above the transfer tube main body is blown into pipe, the nitrogen, which is blown at the top of pipe, is provided with top cover, the nitrogen is blown into the top of pipe with external screw thread, the inside of the top cover is provided with cavity, the inner surface of the cavity is with internal thread, the transfer tube main body is internally provided with air flow rate sensor, the air flow rate sensor connects controller by data wire, compared with prior art, the utility model has following beneficial effect：The stability of transfer tube body interior can be ensured, prevent boron trifluoride from being reacted with the moisture in air.
Description
Technical field
The utility model is a kind of boron trifluoride delivery pipe, is related to polymer reaction technical field.
Background technology
BF3 (boron trifluoride) gas is the catalyst of polymerisation in polymer reactor, and seldom, its property is consumption
Strong oxidizer, the colloid substances such as generation tar can all be reacted by running into micro-moisture or impurity, blocked tiny conveyance conduit, led
Polymer reactor is caused often to be forced to stop production because boron trifluoride pipeline is blocked.
In the device of existing conveying BF3 (boron trifluoride), safeguarded and be readily incorporated due to the replacing of valve, flowmeter, steel cylinder
Impurity, causes BF3 to react gum deposit (reaction mechanism is failed to understand), causes line clogging, have a strong impact on the use of flowmeter.It is existing
Solution only can not remove the residual impurity in pipeline dead angle using ordinary nitrogen purging, and easily pollute environment.
Utility model content
In view of the deficienciess of the prior art, the utility model purpose is to provide a kind of boron trifluoride delivery pipe, to solve
The problem of being proposed in above-mentioned background technology, the utility model is easy to use, is easy to operation, and stability is good, and reliability is high.
To achieve these goals, the utility model is to realize by the following technical solutions：A kind of boron trifluoride is defeated
Send and gas access, the transfer tube master are connected with the left of pipe, including transfer tube main body and controller, the transfer tube main body
Be connected with gas vent on the right side of body, the surface of the transfer tube main body has a resistance heating wire, the transfer tube main body it is upper
Side is connected with nitrogen and is blown into pipe, and the nitrogen, which is blown at the top of pipe, is provided with top cover, and the nitrogen is blown into the top of pipe with outer
Screw thread, the inside of the top cover is provided with cavity, and the inner surface of the cavity is with internal thread, and the inside of the transfer tube main body is set
Air flow rate sensor is equipped with, the air flow rate sensor connects controller by data wire, and the inside of the controller is set
Battery and control chip are equipped with, the battery is connected by electric wire and is provided with relay on resistance heating wire, the electric wire, institute
State relay and control chip is also connected by electric wire.
Further, the nitrogen is blown into the top of pipe and is also enclosed with caulking gum, and the caulking gum is by natural waterproof
Rubber is constituted.
Further, the internal thread is engaged with external screw thread, the top cover by internal thread be engaged with external screw thread after
And be blown into pipe with nitrogen and be connected.
Further, the control chip is made up of single-chip microcomputer and holder, the single-chip microcomputer and the two-way number of holder
According to connection.
Further, the input connection of the output end of the air flow rate sensor and control chip, the control core
The output end of piece and the input of relay are connected, and the output end of the relay and the input of battery are connected, the battery
Output end and resistance heating wire input connect.
The beneficial effects of the utility model：A kind of boron trifluoride delivery pipe of the present utility model, when need clear up transfer tube
When main body, the rotatable top cover of staff is separated so that top cover and nitrogen are blown into pipe, is led to so as to be blown into pipe by nitrogen
Enter nitrogen, transfer tube main body is cleared up, the presence of caulking gum can prevent outside air from entering in transfer tube main body
Portion, it is easy to use, it is easy to operation, stability is good, reliability is high.When actual use, air flow rate sensor can detect
The boron trifluoride flow rate information of transfer tube main body is simultaneously transmitted into single-chip microcomputer, and single-chip microcomputer controls resistance heating wire to transfer tube main body
Heated, so that the moisture in evaporative air, so as to prevent boron trifluoride from being reacted with air, so as to ensure transfer tube master
The stability in internal portion.
Brief description of the drawings
By reading the detailed description made with reference to the following drawings to non-limiting example, other spies of the present utility model
Levy, objects and advantages will become more apparent upon：
Fig. 1 is a kind of structural representation of boron trifluoride delivery pipe of the utility model；
Fig. 2 is a kind of resistance heating wire's principle of heating block diagram of boron trifluoride delivery pipe of the utility model；
In figure：1- transfer tubes main body, 2- controllers, 11- gas accesses, 12- gas vents, 13- nitrogen are blown into pipe, 14-
Top cover, 15- caulking gums, 16- air flow rate sensors, 17- resistance heating wires, 21- electric wires, 22- control chips, 23- batteries,
24- relays.
Embodiment
To be easy to understand technological means, creation characteristic, reached purpose and effect of the utility model realization, below
With reference to embodiment, the utility model is expanded on further.
Fig. 1 to Fig. 2 is referred to, the utility model provides a kind of technical scheme：A kind of boron trifluoride delivery pipe, including transmission
Pipe main body 1 and controller 2, the left side of transfer tube main body 1 are connected with gas access 11, and the right side of transfer tube main body 1 is connected with
Gas vent 12, the surface of transfer tube main body 1 has resistance heating wire 17, and the top of transfer tube main body 1 is connected with nitrogen and is blown into
Pipe 13, the top that nitrogen is blown into pipe 13 is provided with top cover 14, and nitrogen is blown into the top of pipe 13 with external screw thread, the inside of top cover 14
It is provided with cavity, the inner surface of cavity is with internal thread, and transfer tube main body 1 is internally provided with air flow rate sensor 16, air
Flow sensor 16 connects controller 2 by data wire, and controller 2 is internally provided with battery 23 and control chip 22, electricity
Pond 23 is connected by electric wire 21 and is provided with relay 24 on resistance heating wire 17, electric wire 21, and relay 24 is also connected by electric wire 21
Connect control chip 22.
The top that nitrogen is blown into pipe 13 is also enclosed with caulking gum 15, and caulking gum 15 is made up of natural water proof rubber.
Internal thread is engaged with external screw thread, and top cover 14 is engaged with external screw thread by internal thread and pipe 13 is then blown into nitrogen
Connection.
Control chip 22 is made up of single-chip microcomputer and holder, and single-chip microcomputer is connected with holder bi-directional data.
As one embodiment of the present utility model, the output end of air flow rate sensor 16 and the input of control chip 22
End connection, the output end of control chip 22 is connected with the input of relay 24, and the output end of relay 24 is defeated with battery 23
Enter end connection, the output end of battery 23 is connected with the input of resistance heating wire 17.
As one embodiment of the present utility model, when cleaning transfer tube main body 1 is needed, staff is rotatable
Top cover 14, is separated so that top cover 14 and nitrogen are blown into pipe 13, so that being blown into pipe 13 by nitrogen is passed through nitrogen, to transfer tube master
Body 1 is cleared up, the presence of caulking gum 15, can prevent outside air from entering inside transfer tube main body 1, easy to use,
It is easy to operation, stability is good, reliability is high.Before actual use, staff can input the critical value of an air velocity extremely
In holder, when actual use, air flow rate sensor 16 can detect the boron trifluoride flow rate information of transfer tube main body 1
And transmit into single-chip microcomputer, single-chip microcomputer passes through the air velocity with being stored in holder after further calculating and processing
Critical value is contrasted, if higher than this critical value, single-chip microcomputer then controls battery 23 to flow through electricity by control relay 24
The break-make of the electric current of heater strip 17 is hindered, so as to control resistance heating wire 17 to heat transfer tube main body 1, so that in evaporative air
Moisture, so as to prevent boron trifluoride from being reacted with air, so as to ensure the stability inside transfer tube main body 1.
General principle of the present utility model and principal character and advantage of the present utility model has been shown and described above, for
For those skilled in the art, it is clear that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and without departing substantially from this
In the case of the spirit or essential attributes of utility model, the utility model can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, scope of the present utility model is by institute
Attached claim rather than described above are limited, it is intended that will fall in the implication and scope of the equivalency of claim
All changes are included in the utility model.Any reference in claim should not be considered as to the right involved by limitation
It is required that.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that for clarity, those skilled in the art should
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It may be appreciated other embodiment.
Claims (5)
1. a kind of boron trifluoride delivery pipe, including transfer tube main body and controller, it is characterised in that：The transfer tube main body
Left side, which is connected with the right side of gas access, the transfer tube main body, is connected with gas vent, and the surface of the transfer tube main body is attached
Have and be connected with nitrogen above resistance heating wire, the transfer tube main body and be blown into pipe, the nitrogen is blown at the top of pipe and is provided with
Top cover, the nitrogen is blown into the top of pipe with external screw thread, and the inside of the top cover is provided with cavity, the inner surface rolling of the cavity
There is an internal thread, the transfer tube main body is internally provided with air flow rate sensor, and the air flow rate sensor passes through data
Line connects controller, and the controller is internally provided with battery and control chip, and the battery connects resistance by electric wire
Relay is provided with heater strip, the electric wire, the relay also connects control chip by electric wire.
2. a kind of boron trifluoride delivery pipe according to claim 1, it is characterised in that：The nitrogen is blown into the top of pipe also
Caulking gum is enclosed with, the caulking gum is made up of natural water proof rubber.
3. a kind of boron trifluoride delivery pipe according to claim 1, it is characterised in that：The internal thread matches with external screw thread
Close, the top cover is engaged by internal thread and external screw thread to be then blown into pipe with nitrogen and be connected.
4. a kind of boron trifluoride delivery pipe according to claim 1, it is characterised in that：The control chip by single-chip microcomputer with
And holder is constituted, the single-chip microcomputer is connected with holder bi-directional data.
5. a kind of boron trifluoride delivery pipe according to claim 1, it is characterised in that：The air flow rate sensor it is defeated
Go out end to be connected with the input of control chip, the output end of the control chip and the input of relay are connected, the relay
The output end of device and the input of battery are connected, and the output end of the battery and the input of resistance heating wire are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720216529.6U CN206522571U (en) | 2017-03-07 | 2017-03-07 | A kind of boron trifluoride delivery pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720216529.6U CN206522571U (en) | 2017-03-07 | 2017-03-07 | A kind of boron trifluoride delivery pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206522571U true CN206522571U (en) | 2017-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720216529.6U Active CN206522571U (en) | 2017-03-07 | 2017-03-07 | A kind of boron trifluoride delivery pipe |
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| Country | Link |
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| CN (1) | CN206522571U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019108982A (en) * | 2017-12-18 | 2019-07-04 | トレバー インターナショナルＴｒｅｂｏｒ Ｉｎｔｅｒｎａｔｉｏｎａｌ | Pfa tube heater with flexible heating elements |
-
2017
- 2017-03-07 CN CN201720216529.6U patent/CN206522571U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2019108982A (en) * | 2017-12-18 | 2019-07-04 | トレバー インターナショナルＴｒｅｂｏｒ Ｉｎｔｅｒｎａｔｉｏｎａｌ | Pfa tube heater with flexible heating elements |
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