CN110068530A - A kind of pvc pipe degradation detecting device - Google Patents
A kind of pvc pipe degradation detecting device Download PDFInfo
- Publication number
- CN110068530A CN110068530A CN201910385973.4A CN201910385973A CN110068530A CN 110068530 A CN110068530 A CN 110068530A CN 201910385973 A CN201910385973 A CN 201910385973A CN 110068530 A CN110068530 A CN 110068530A
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- China
- Prior art keywords
- pvc pipe
- current detection
- hydrogen chloride
- check valve
- collecting hood
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N17/00—Investigating resistance of materials to the weather, to corrosion, or to light
- G01N17/004—Investigating resistance of materials to the weather, to corrosion, or to light to light
Abstract
The present invention relates to a kind of pvc pipe degradation detecting devices, it is characterized in that, the detection device includes detection unit, clamp assemblies, hydrogen chloride collecting hood, vacuum pump, current detection component, water tank and amplifying circuit, one end of the vacuum pump connects current detection component by leather hose, the other end of the vacuum pump is connected by leather hose, hydrogen chloride collecting hood, clamp assemblies are provided with below the hydrogen chloride collecting hood, the current detection component passes through amplifying circuit connecting detection unit, the technical solution whole design is compact ingenious, it can rapidly and accurately judge the degree of aging of pvc pipe, improve working efficiency.
Description
Technical field
The present invention relates to a kind of detection devices, and in particular to a kind of pvc pipe degradation detecting device belongs to structure of the detecting device
Component technology field.
Background technique
Polyvinyl chloride (PVC) is since the 1930s realizes industrialization, price, good object by relative moderate
Rationality matter and chemical property are widely used in the various tubing of production, plate, wire outer skin, door and window etc..Therefore several in the past
In development in 10 years, PVC is at one of material irreplaceable in national life.
Although this body structure of PVC is more stable, inevitably to occur with other materials due in production secondary anti-
Polar group (organic matter loses remaining part after an atom or an atomic group) is answered or introduces, so as to cause the chain of PVC
Formula structure changes.If PVC material is in some special environment such as the aerobic environment of high temperature, these unstable knots
Structure is extremely easy in decomposition, and accelerates de- HCI(hydrogen chloride) speed so that accelerate to lead to molecule chain break.Furthermore it is lacked when certain in PVC
When sunken group is irradiated with ultraviolet radiation, ultraviolet light can be used as chemical reaction catalyst, release HCI gas.So working as PVC material
It is chronically exposed in high temperature and ultraviolet light, can all cause the aging of pvc pipe.
And the method for pvc pipe aging is judged now and is cut mostly according to the variation of material appearance color, or by material
Piece is placed in instrument and detects.Both methods is unable to rational judgment or cannot be detected in the case where not destroying material,
Therefore all there is some drawbacks.The present invention is by a kind of novel measurement method, using the content of detection PVC material surface HCI,
Judge the degree of aging of PVC.And because device thus be it is portable, it is compact and flexible, can preferably apply to some biographies
The system undetectable place of equipment.
Summary of the invention
Exactly aiming at the problems existing in the prior art, the pvc pipe for providing a kind of of simple structure and strong practicability is old by the present invention
Change detection device, program structure is compact to design ingenious, easy to detect accurate.
To achieve the goals above, technical scheme is as follows, and a kind of pvc pipe degradation detecting device, feature exists
In the detection device includes detection unit, clamp assemblies, hydrogen chloride collecting hood, vacuum pump, current detection component and amplification
Circuit, one end of the vacuum pump connect current detection component by leather hose, the other end of the vacuum pump connected by leather hose,
Hydrogen chloride collecting hood, clamp assemblies are provided with below the hydrogen chloride collecting hood, and the current detection component passes through amplification electricity
Road connecting detection unit.
As an improvement of the present invention, the detection unit includes under detection module, detection module upper cover, detection module
Lid, current detection means and PVC aging dial gauge, program overall volume is small, it is compact-sized, can detecte different-diameter
Pvc pipe, use scope is wide, production easy to process.
As an improvement of the present invention, the clamp assemblies include four spring supports, cross bar, dewclaw and lower claw,
Wherein two groups of mutual cooperation dewclaws and lower claw are fixed on the both ends of cross bar, and four spring supports are connected to position among cross bar.
As an improvement of the present invention, it is provided with ultraviolet radiator in the hydrogen chloride collecting hood, issued parallel ultraviolet
Line light.
As an improvement of the present invention, the current detection component includes current detection means cavity, piston push rod, list
To valve, positive electricity end, check valve, check valve and negative electricity are extreme, and the piston push rod is arranged in current detection means cavity,
The check valve is connected by leather hose with vacuum pump, and the check valve is connected by leather hose with water tank, the check valve and leather hose
It is connected, the positive electricity end and negative electricity are extremely connected with amplifying circuit.
As an improvement of the present invention, hydrogen chloride collecting hood top is set as plastics, and the circle of bottom one is set as rubber
Rubber washer.
Compared with the existing technology, advantages of the present invention is as follows: 1) the technical solution structure is compact to design ingenious；2) technology
Scheme is easy to operate, and measurement is accurate；2) for the technical solution using a kind of completely new testing mechanism, this scheme testing result is accurate,
Compared with other detection devices, this scheme is at low cost, and cost performance is high；3) the technical solution detection range is wide, and testing result is straight
It sees, destroy original pvc pipe；4) this scheme very easily measures pvc pipe degree of aging, generates hydrogen chloride according to pvc pipe
The number of gas compares judgement, can rapidly and accurately judge the degree of aging of pvc pipe.
Detailed description of the invention
Fig. 1 is overall workflow schematic diagram of the present invention；
Fig. 2 is general assembly structural schematic diagram of the present invention；
Fig. 3 is pvc pipe ageing management modular unit schematic diagram；
Fig. 4 is current detection means schematic diagram；
Fig. 5 is detection device operation principle schematic diagram of the present invention.
In figure: 1-detection module, 2-four spring supports, 3-cross bars, 4-dewclaws, 5-lower claws, 6-air inlets,
7-ultraviolet radiator, 8-leather hoses, 9-hydrogen chloride collecting hoods, 10-vacuum pumps, 11-water tanks, 12-detection module upper covers, 13-
Detection module lower cover, 14-current detection means, 15-PVC aging dial gauges, 16-current detection means cavitys, 17-pistons
Push rod, 18-check valves, 19-positive electricity ends, 20-check valves, 21-check valves, 22-negative electricity are extreme, 23-leather hoses, and 24-
Amplifying circuit.
Specific embodiment:
In order to deepen the understanding of the present invention, the present embodiment is described in detail with reference to the accompanying drawing.
Embodiment 1: referring to Fig. 1, a kind of pvc pipe degradation detecting device, the detection device includes detection unit, clamping group
Part, hydrogen chloride collecting hood 9, vacuum pump 10, current detection component, water tank 11 and amplifying circuit 24, one end of the vacuum pump
Current detection component is connected by leather hose 8, the other end of the vacuum pump passes through leather hose connection, hydrogen chloride collecting hood 9, the chlorine
The lower section for changing hydrogen collecting hood 9 is provided with clamp assemblies, and the current detection component passes through amplifying circuit connecting detection unit；It is described
Detection unit includes detection module 1, detection module upper cover 12, detection module lower cover 13, current detection means 14 and PVC aging
Dial gauge 15, program overall volume is small, pvc pipe that is compact-sized, can detecte different-diameter, use scope is wide, be easy to plus
Work production, the clamp assemblies include four spring supports 2, cross bar 3, dewclaw 4 and lower claw 5, wherein in two groups of mutual cooperations
Pawl 4 and lower claw 5 are fixed on the both ends of cross bar 3, and four spring supports are connected to position among cross bar；The hydrogen chloride collecting hood 9
It is inside provided with ultraviolet radiator 7, issues parallel ultraviolet light.The current detection component includes current detection means cavity
16, piston push rod 17, check valve 18, positive electricity end 19, check valve 20, check valve 21 and negative electricity extreme 22, the piston pushes away
Bar 17 is arranged in current detection means cavity 16, and the check valve 18 is connected by leather hose with vacuum pump 10, the check valve
20 are connected by leather hose with water tank 11, and the check valve 21 is connected with leather hose 23, the positive electricity end 19 and negative electricity extreme 22 and
Electric current is connected.9 top of hydrogen chloride collecting hood is set as plastics, and the circle of bottom one is set as rubber pad relative to existing skill
Art, the technical solution is easy to operate, and measurement is accurate.
Working principle: thermostabilization is usually added in raw material in the initial production and processing of pvc pipe referring to Fig. 1-Fig. 5
Agent and light stabilizer, to improve the anti-aging property of pvc pipe.But growth when using with pvc pipe, heat stabilizer and light are stablized
Agent can gradually decompose reduce, and when pvc pipe occur aging after will occur take off HCL(hydrogen chloride) gas chain reaction, this
The degree of aging of pvc pipe will be further speeded up.And the present apparatus judges pvc pipe by how much detecting pvc pipe surface chlorination hydrogen content
Degree of aging.
When detecting for the first time using instrument, water tank 11 is first filled it up with into distilled water, clip is clipped in pvc to be detected later and is managed
On.Hydrogen chloride collecting hood on clip is under the collective effect of clip itself spring and four spring supports, hydrogen chloride collecting hood
The rubber pad of lower end is close to pvc pipe surface, forms the space of a relative closure, passes through leather hose in the upper end of hydrogen chloride collecting hood
It is connected with vacuum pump 10.
It is manually pulled out piston rod 17, piston at 18 front of check valve, close by check valve 21 at this time, and check valve 20 is opened,
Negative pressure is formed in current detection means, the distilled water in water tank is flowed into current detection means by check valve 20.When piston is transported
After moving individual event valve 18, a small amount of air enters in current detection means, is eventually collected at check valve 21.Pushing piston rod
While touch dial gauge 14 switch, adjust indicator gage finger, be allowed to be zeroed.
Open the switch of vacuum pump 10 and ultraviolet radiator 7.Pvc pipe can be received under ultraviolet irradiation in hydrogen chloride at this time
Micro hydrogen chloride gas HCL is generated in collection cover.But under the action of vacuum pump 10, hydrogen chloride gas is by leather hose 8 and unidirectionally
Valve 18 is pumped down in current detection means 14.
Check valve 20 is closed at this time, and check valve 21 is opened.Since hydrogen chloride gas is highly soluble in water, (water of 1 volume is about
The hydrogen chloride of 500 volumes can be dissolved).So hydrogen chloride will all be dissolved in water, dilute hydrochloric acid is formed.And extra air, then it will pass through
Check valve 21 is discharged.
The two end electrodes 21,19 of current detection means are connected with electric current, chloride ion and hydrogen ion under the action of potential difference,
Will displacement, form faint electric current.By the effect of amplifying circuit, electric current is further amplified, and with special electricity
Flow table 15, which is connected, (to be indicated the ammeter of pvc pipe degree of aging, the degree of aging (dial of pvc pipe is read by pointer on dial plate
On pvc pipe degree of aging numerical value by experiment survey).
When the tests are completed, clip is removed from pvc pipe.Piston rod is pushed, check valve 18,20 is closed at this time, unidirectionally
Valve 11 is opened.Water in current detection means is discharged by check valve 11.Close all switches；It is repeated when reusing above-mentioned
Step.
It should be noted that above-described embodiment, is not intended to limit the scope of protection of the present invention, in above-mentioned technical proposal
On the basis of made equivalents or substitution each fall within the range that the claims in the present invention are protected.
Claims (6)
1. a kind of pvc pipe degradation detecting device, which is characterized in that the detection device includes detection unit, clamp assemblies, chlorination
One end of hydrogen collecting hood, vacuum pump, current detection component, water tank and amplifying circuit, the vacuum pump connects electricity by leather hose
Detection components are flowed, the other end of the vacuum pump connects hydrogen chloride collecting hood, the lower section of the hydrogen chloride collecting hood by leather hose
Clamp assemblies are provided with, the current detection component passes through amplifying circuit connecting detection unit.
2. pvc pipe degradation detecting device according to claim 1, which is characterized in that the detection unit includes detection mould
Block, detection module upper cover, detection module lower cover, current detection means and PVC aging dial gauge, wherein current detection means position
Inside detection module, detection module upper cover will be covered under detection module on lid, and PVC aging dial gauge is embedded on detection module
It covers.
3. pvc pipe degradation detecting device according to claim 2, which is characterized in that the clamp assemblies include four bullets
Spring bracket, cross bar, dewclaw and lower claw, wherein two groups of mutual cooperation dewclaws and lower claw are fixed on the both ends of cross bar, four springs
Bracket is connected to position among cross bar.
4. pvc pipe degradation detecting device according to claim 2 or 3, which is characterized in that set in the hydrogen chloride collecting hood
It is equipped with ultraviolet radiator.
5. pvc pipe degradation detecting device according to claim 4, which is characterized in that the current detection component includes
Current detection means cavity, piston push rod, check valve, positive electricity end, check valve, check valve and negative electricity are extreme, described
Piston push rod is arranged in current detection means cavity, and the check valve is connected by leather hose with vacuum pump, and the check valve is logical
It crosses leather hose to be connected with water tank, the check valve is connected with leather hose, and the positive electricity end and negative electricity are extremely connected with amplifying circuit.
6. pvc pipe degradation detecting device according to claim 1, which is characterized in that hydrogen chloride collecting hood top is set
Plastics are set to, the circle of bottom one is set as rubber pad.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385973.4A CN110068530B (en) | 2019-05-09 | 2019-05-09 | PVC pipe aging detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910385973.4A CN110068530B (en) | 2019-05-09 | 2019-05-09 | PVC pipe aging detection device |
Publications (2)
| Publication Number | Publication Date |
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| CN110068530A true CN110068530A (en) | 2019-07-30 |
| CN110068530B CN110068530B (en) | 2022-06-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910385973.4A Active CN110068530B (en) | 2019-05-09 | 2019-05-09 | PVC pipe aging detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110925603A (en) * | 2019-12-06 | 2020-03-27 | 集美大学 | Pipeline state detection method and system |
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| CN110068530B (en) | 2022-06-24 |
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