CN205308313U - Polyurethane reation kettle's nitrogen charging arrangement - Google Patents
Polyurethane reation kettle's nitrogen charging arrangement Download PDFInfo
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- CN205308313U CN205308313U CN201620045214.5U CN201620045214U CN205308313U CN 205308313 U CN205308313 U CN 205308313U CN 201620045214 U CN201620045214 U CN 201620045214U CN 205308313 U CN205308313 U CN 205308313U
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Abstract
The utility model discloses a polyurethane reation kettle's nitrogen charging arrangement, it is including compression nitrogen gas source, first air flue, second air flue, real -time nitrogen gas analysor and controller. The sampling cavity is connected to polyurethane reation kettle via the sampling valve, the sampling cavity still is connected to real -time nitrogen gas analysor via discharge valve, the sampling cavity includes mutual piston, this mutual piston mechanically is connected to the inside drive RAM of two -way actuator disk cylinder, drive RAM can be through applying to the two -way actuator disk of compression nitrogen gas of first air flue or second air flue, atmospheric pressure in first air flue and the second air flue is controlled by the solenoid valve, the controller sends control signal through first control aline solenoid valve, control solenoid's action, first gas vent is connected with the solenoid valve respectively with the second gas vent. The controller contains wireless transmitting module, and this wireless transmitting module sends the purity of nitrogen gas to the display device of distal end through wireless agreement.
Description
Technical field
This utility model relates to a kind of nitrogen charging device, and relates more specifically to the nitrogen charging device of a kind of polyurethane reaction still.
Background technology
Polyurethane is the one of synthetic resin, and polyurethane passes through feed change kind and composition, it is possible to changes product form and performance thereof significantly, obtains from softness to hard final products. Polyurethane product form has soft, semi-rigid and rigid foam, elastomer, paint, adhesive, fluid sealant, synthetic leather coating resin, elastic fiber etc., and polyurethane is widely used in many fields such as transportation, civil construction, footwear, synthetic leather, fabric, electromechanics. The synthetic reaction of polyurethane completes in reactor; during reaction; if there is air in reactor; stock solution can be caused impure, cause the generation of impurity, affect the carrying out of polyurethane reaction; reduce the quality of product; it is thus desirable to pass into nitrogen in reactor always, the reaction stock solution in reactor is protected, it is prevented that in still, there is air.
Prior art as the application, patent documentation 1 (CN201949869U) discloses automatic nitrogen control device in a kind of polyurethane synthetic reaction, including reactor and Nitrogen Control Units, described Nitrogen Control Units includes nitrogen pot and nitrogen induction system, the top of described reactor is provided with air inlet and gas outlet, air inlet is provided with intake valve, and gas outlet is provided with air outlet valve; Nitrogen induction system includes nitrogen outlet tube and nitrogen bypass duct, and one end of nitrogen outlet tube connects with nitrogen pot, and the other end is connected with the air inlet on reactor, and described intake valve and air outlet valve are provided with pressure sensitive device. But there is following defect in this nitrogen aerating device: cannot verify that whether nitrogen is contaminated; if nitrogen is contaminated; it is continuing with being likely to result in and cannot protect polyurethane reaction stock solution, and nitrogen charging device structure of the prior art is complicated, involves great expense.
Utility model content
1. to solve the technical problem that
The purpose of this utility model is in that, the purpose of this utility model is to provide the nitrogen charging device of a kind of polyurethane reaction still, overcomes the deficiencies in the prior art.
2. technical scheme
The purpose of this utility model is achieved by following technical scheme.
The nitrogen charging device of a kind of polyurethane reaction still, it includes compressed nitrogen source of the gas, the first air flue, the second air flue, real-time nitrogen analyzer and controller. sampling cavity is connected to polyurethane reaction still via sampling valve, sampling cavity is also connected to real-time nitrogen analyzer via air bleeding valve, sampling cavity includes mutual piston, it is connected to the driving piston within two-way actuating cylinder this mutual piston machine, drive piston can pass through to apply the two-way actuating of compressed nitrogen to the first air flue or the second air flue, air pressure in first air flue and the second air flue is by electromagnetic valve control, controller sends control signal by the first control alignment electromagnetic valve, control the action of electromagnetic valve, first row QI KOU is connected with electromagnetic valve respectively with second exhaust port. when the nitrogen being derived from compressed nitrogen source of the gas applies to the first air flue, when the second air flue is connected with second exhaust port so that drive piston moves down, and then drive the mutual piston within sampling cavity also to move down, enter test pattern. when electromagnetic valve activated, the nitrogen being derived from compressed nitrogen source of the gas applies to the second air flue, when first air flue is connected with first row QI KOU so that drive piston moves up, and then the mutual piston within sampling cavity is driven to also move up, enter sampling configuration, now controller controls the first actuator via the second control line, closes sampling valve, and controller controls the second actuator via the 3rd control line and opens air bleeding valve, make compressed nitrogen enter real-time nitrogen analyzer, nitrogen gas purity is tested. described controller comprises wireless transmitter module, and the purity of nitrogen is sent the display device to far-end by wireless protocols by this wireless transmitter module.
Preferably, the first described actuator and the second actuator are solenoid.
Preferably, described controller comprises DSP or CPLD.
3. beneficial effect
The beneficial effects of the utility model are in that, compared with prior art, it is possible to obtaining the state of nitrogen in real time, whether checking nitrogen is contaminated, and simple in construction, cheap.
Accompanying drawing explanation
Fig. 1 is the schematic diagram of the nitrogen charging device of a kind of polyurethane reaction still according to this utility model preferred embodiment composition.
In figure: 10-polyurethane reaction still; The real-time nitrogen analyzer of 20-; 25-the first actuator; 30-sampling valve; 40-air bleeding valve; 42-the second actuator; 50-sampling cavity; The mutual piston of 51-; The two-way actuating cylinder of 60-; 61-drives piston; 62-electromagnetic valve; 70-the first air flue; 71-the second air flue; 75-compressed nitrogen source of the gas; 76-first row QI KOU; 77-second exhaust port; 110-controller; 112-the 3rd control line; 114-the second control line; 116-the first control line.
Detailed description of the invention
Hereinafter, with reference to accompanying drawing, specific embodiment of the utility model being described in detail, according to the description that these are detailed, one of ordinary skill in the art are it can be clearly understood that this utility model, and can implement this utility model. When without prejudice to this utility model principle, the feature in each different embodiment can be combined obtaining new embodiment, or substitutes some feature in some embodiment, it is thus achieved that other is preferred embodiment.
Illustrate that it includes compressed nitrogen source of the gas 75, the first air flue 70, the second air flue 71 according to the nitrogen charging device of a kind of polyurethane reaction still that this utility model preferred embodiment is constituted with reference to Fig. 1, Fig. 1, real-time nitrogen analyzer 20 and controller 110.
Sampling cavity 50 is connected to polyurethane reaction still via sampling valve 30, sampling cavity 50 is also connected to real-time nitrogen analyzer 20 via air bleeding valve 40, sampling cavity 50 includes mutual piston 51, this mutual piston 51 is mechanically connected to the driving piston 61 within two-way actuating cylinder 60, drive piston 61 can pass through to apply the two-way actuating of compressed nitrogen to the first air flue 70 or the second air flue 71, air pressure in first air flue 70 and the second air flue 72 is controlled by electromagnetic valve 62, controller 110 sends control signal by the first control line 116 to electromagnetic valve 62, control the action of electromagnetic valve 62, first row QI KOU 76 is connected with electromagnetic valve 62 respectively with second exhaust port 77.
When the nitrogen being derived from compressed nitrogen source of the gas 75 applies to the first air flue 70, when the second air flue 71 is connected with second exhaust port 77 so that drive piston 61 moves down, and then drive the mutual piston 51 within sampling cavity 50 also to move down, enter test pattern. When electromagnetic valve 62 activated, the nitrogen being derived from compressed nitrogen source of the gas 75 applies to the second air flue 71, when first air flue 70 is connected with first row QI KOU 76, drive piston 61 is moved up, and then drive the mutual piston 51 within sampling cavity 50 to also move up, enter sampling configuration, now controller 110 controls the first actuator 25 via the second control line 114, close sampling valve 30, controller 110 controls the second actuator 42 via the 3rd control line 112 and opens air bleeding valve 40, make compressed nitrogen enter real-time nitrogen analyzer 20, nitrogen gas purity is tested.
Described controller 110 comprises wireless transmitter module, and the purity of nitrogen is sent the display device to far-end by wireless protocols by this wireless transmitter module.
In a further preferred embodiment, the first described actuator 25 and the second actuator 42 are solenoid.
In a further preferred embodiment, described controller comprises DSP or CPLD.
The beneficial effects of the utility model are in that, compared with prior art, it is possible to obtaining the state of nitrogen in real time, whether checking nitrogen is contaminated, and simple in construction, cheap.
Although this utility model being described above by referring to specific embodiment, but one of ordinary skill in the art should be appreciated that in principle disclosed in this utility model with in scope, it is possible to disclosed in this utility model, configuration and details make many amendments. Protection domain of the present utility model is determined by appended claim, and the whole amendments included by the claim equivalent literal meaning that is intended in claim technical characteristic or scope.
Claims (3)
1. a nitrogen charging device for polyurethane reaction still, it includes compressed nitrogen source of the gas (75), the first air flue (70), the second air flue (71), real-time nitrogen analyzer (20) and controller (110),
It is characterized in that,
Sampling cavity (50) is connected to polyurethane reaction still via sampling valve (30), sampling cavity (50) is also connected to real-time nitrogen analyzer (20) via air bleeding valve (40), sampling cavity (50) includes mutual piston (51), this mutual piston (51) is mechanically connected to the driving piston (61) that two-way actuating cylinder (60) is internal, drive piston (61) can pass through to apply the two-way actuating of compressed nitrogen to the first air flue (70) or the second air flue (71), air pressure in first air flue (70) and the second air flue (71) is controlled by electromagnetic valve (62), controller (110) sends control signal by the first control line (116) to electromagnetic valve (62), control the action of electromagnetic valve (62), first row QI KOU (76) is connected with electromagnetic valve (62) respectively with second exhaust port (77),
When the nitrogen being derived from compressed nitrogen source of the gas (75) applies to the first air flue (70), when second air flue (71) is connected with second exhaust port (77), drive piston (61) is moved down, and then the mutual piston (51) driving sampling cavity (50) internal also moves down, enter test pattern, when electromagnetic valve (62) activated, the nitrogen being derived from compressed nitrogen source of the gas (75) applies to the second air flue (71), when first air flue (70) is connected with first row QI KOU (76), drive piston (61) is moved up, and then the mutual piston (51) driving sampling cavity (50) internal also moves up, enter sampling configuration, now controller (110) controls the first actuator (25) via the second control line (114), close sampling valve (30), controller (110) controls the second actuator (42) via the 3rd control line (112) and opens air bleeding valve (40), compressed nitrogen is made to enter real-time nitrogen analyzer (20), nitrogen gas purity is tested,
Described controller (110) comprises wireless transmitter module, and the purity of nitrogen is sent the display device to far-end by wireless protocols by this wireless transmitter module.
2. the nitrogen charging device of a kind of polyurethane reaction still according to claim 1, it is characterised in that described the first actuator (25) and the second actuator (42) are solenoid.
3. the nitrogen charging device of a kind of polyurethane reaction still according to claim 1 and 2, it is characterised in that described controller comprises DSP or CPLD.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620045214.5U CN205308313U (en) | 2016-01-18 | 2016-01-18 | Polyurethane reation kettle's nitrogen charging arrangement |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620045214.5U CN205308313U (en) | 2016-01-18 | 2016-01-18 | Polyurethane reation kettle's nitrogen charging arrangement |
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| CN205308313U true CN205308313U (en) | 2016-06-15 |
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| CN201620045214.5U Active CN205308313U (en) | 2016-01-18 | 2016-01-18 | Polyurethane reation kettle's nitrogen charging arrangement |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509385A (en) * | 2018-09-29 | 2019-03-22 | 嘉善县干窑中学 | A kind of experiment inert gas generator |
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2016
- 2016-01-18 CN CN201620045214.5U patent/CN205308313U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109509385A (en) * | 2018-09-29 | 2019-03-22 | 嘉善县干窑中学 | A kind of experiment inert gas generator |
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