CN102829934A - Pipe inner cavity pressure detector of evaporator - Google Patents
Pipe inner cavity pressure detector of evaporator Download PDFInfo
- Publication number
- CN102829934A CN102829934A CN 201110164182 CN201110164182A CN102829934A CN 102829934 A CN102829934 A CN 102829934A CN 201110164182 CN201110164182 CN 201110164182 CN 201110164182 A CN201110164182 A CN 201110164182A CN 102829934 A CN102829934 A CN 102829934A
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- China
- Prior art keywords
- evaporator
- pipe
- inner cavity
- pressure
- needle
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Abstract
The invention discloses a pipe inner cavity pressure detector of an evaporator. The pipe inner cavity pressure detector comprises a pressure meter, a seal pad, a needle head, a connection sleeve and a pipe cap, wherein the pipe cap is connected with an opening of a pipe of an inner cavity of the evaporator and is a rubber piece which forms a seal space with the pipe of the evaporator; the seal pad, the needle head and the seal pad are arranged between a joint of the pressure meter and the end surface of an inner hole of the connection sleeve, and the connection sleeve is in threaded matching with the joint of the pressure meter, so that the seal connection between the needle head, the joint of the pressure meter and the connection sleeve is realized. When the pipe inner cavity pressure detector is used, firstly the pipe cap is in sealed connection with the opening of the pipe of the inner cavity of the evaporator, air is filled in the seal space of the inner cavity of the evaporator to enable the seal space to be of the certain pressure, pressure preservation is kept for a while, a needle tip and a needle pipe are punctured into the pipe cap of the opening of the pipe of the inner cavity of the evaporator, and a pressure change situation of the inner cavity of the evaporator can be observed from the pressure meter, so that the seal performance of the inner cavity of the evaporator is judged. The whole detection operation is very quick, and the pipe inner cavity pressure detector is suitable for detecting the seal performance of the inner cavity during large-batch production of the evaporator.
Description
Technical field
The present invention relates to a kind of pressure-detecting device, more particularly, the present invention relates to a kind of evaporator tube chamber pressure pick-up unit.
Background technology
The evaporator tube inner chamber has certain sealing requirements, now generally adopts following two kinds of methods to detect the sealing of evaporator tube inner chamber, a kind of be with the evaporator tube inner chamber airtight after; To wherein inflation, then evaporator is immersed in the water, observe whether producing bubble; Thereby judge the sealing of evaporator tube inner chamber, this method detects more directly perceived, but operational sequence is more; Also more complicated, and after in immersing water, have water and get in the evaporator tube inner chamber; Another kind is to need to adopt pressure-detecting device; Be that tensimeter is sealedly connected on the evaporator tube inner chamber mouth of pipe; After evaporator tube inner chamber inflation pressurization, the pressurize regular hour, observe the force value situation of change that tensimeter shows then; Do not change as basic, explain that then the sealing of evaporator tube inner chamber reaches requirement; The force value that shows like tensimeter diminishes, and explains that then there is leakage in the evaporator tube inner chamber, and its sealing does not reach requirement; A kind of method is simple before this method ratio, but needs when each the detection, pressure-detecting device is sealedly connected on the evaporator tube inner chamber mouth of pipe, carries out pressurize then and observes; In the detection that evaporator is produced in enormous quantities; Need a large amount of pressure-detecting devices, it is bigger that this method detects frock manufacturing input, and a large amount of manometric periodic verification expense is also higher.
Summary of the invention
The present invention is directed to the deficiency of prior art, provide a kind of simple in structure, swift to operate, be applicable to the evaporator tube chamber pressure pick-up unit that the evaporator production in enormous quantities detects.
The present invention realizes technical goal through following technical proposals.
Evaporator tube chamber pressure pick-up unit, it comprises tensimeter, be connected connecing cover, be sealedly connected on the pipe cap of the evaporator inner chamber pipeline mouth of pipe in the pressure tapping; Its improvements are: said pipe cap is a rubber parts, and itself and evaporator pipeline are formed confined space; In pressure tapping and connect in the cover and be provided with syringe needle between the hole end surface, said syringe needle is made up of pintle and the needle tubing, the needle point that are fixedly connected on the pintle front end, and said needle tubing runs through to connect and overlaps endoporus and stretch out to connect and overlap the outer face; Be provided with sealing gasket at said pintle front/rear end,, realize syringe needle and pressure tapping, connect being tightly connected between the cover through connecing the threaded engagement of cover and pressure tapping.
In the said structure, said syringe needle is the injector for medical purpose syringe needle.
The present invention compared with prior art has following good effect:
1. simple in structure, make easily.
2. when the present invention is used to detect; Needle point, needle tubing are thrust from the pipe cap of the evaporator pipeline mouth of pipe; From tensimeter, just can observe evaporator tube chamber pressure situation of change, thereby judge the sealing of evaporator tube inner chamber, after observation is accomplished; Extract needle tubing, needle point, whole operation is very quick.
3. only need the present invention seldom, just can satisfy evaporator and produce the needs that detect in enormous quantities, saved frock manufacturing input and tensimeter periodic verification expense.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is the evaporator inner chamber pipeline mouth of pipe, pipe cap connection status synoptic diagram.
Embodiment
Below according to accompanying drawing and combine embodiment that the present invention is described further.
Evaporator tube chamber pressure pick-up unit shown in the drawings; It comprises tensimeter 1, sealing gasket 3, syringe needle 2, sealing gasket 5, connects the pipe cap 6 that overlaps 4, is sealedly connected on evaporator inner chamber pipeline 7 mouths of pipe; Pipe cap 6 is a rubber parts, and itself and evaporator pipeline 7 are formed confined space; Said syringe needle 2 is made up of pintle 2.1 and the needle tubing 2.2, the needle point 2.3 that are fixedly connected on pintle 2.1 front ends; Said sealing gasket 3, syringe needle 2, sealing gasket 5 are installed in tensimeter 1 joint 1.1 and connect in the cover 4 between the hole end surfaces, connect cover 4 and tensimeter 1 joint 1.1 threaded engagement, realize syringe needle 2 and tensimeter 1 joint 1.1, connect and overlap being tightly connected between 4; Needle tubing 2.2 run through connect the cover 4 endoporus stretch out connect the cover 4 outer faces; In the present embodiment, syringe needle 2 is the injector for medical purpose syringe needle.
The present invention is sealedly connected on evaporator inner chamber pipeline 7 mouths of pipe with pipe cap 6 earlier in use, forms confined space; To the confined space of the evaporator inner chamber certain pressure that carries out pneumatic compression; Present embodiment is pressurized to 0.2MPa, pressurize a period of time, present embodiment pressurize 24 hours; Then needle point of the present invention 2.3, needle tubing 2.2 are thrust from the pipe cap 6 of evaporator inner chamber pipeline 7 mouths of pipe; From tensimeter 1, just can observe evaporator tube chamber pressure situation of change, be 0.2MPa like the pressure that shows on the tensimeter 1, explains that then the evaporator tube inner chamber does not have leakage; Less than 0.2MPa, explain then that the evaporator tube inner chamber has leakage like the pressure that shows on the tensimeter 1.After observing completion, extract needle tubing 2.2, needle point 2.3.Whole operation is very quick.
Claims (2)
1. evaporator tube chamber pressure pick-up unit, it comprises tensimeter (1), be connected connecing cover (4), be sealedly connected on the pipe cap (6) of evaporator pipeline (7) mouth of pipe on tensimeter (1) joint (1.1); It is characterized in that: said pipe cap (6) is a rubber parts, and itself and evaporator inner chamber pipeline (7) are formed confined space; At tensimeter (1) joint (1.1) and connect and be provided with syringe needle (2) in the cover (4) between the hole end surface; Said syringe needle (2) is made up of pintle (2.1) and the needle tubing (2.2), the needle point (2.3) that are fixedly connected on pintle (2.1) front end, and said needle tubing (2.2) runs through and connects cover (4) endoporus and stretch out and connect cover (4) outer face; Be provided with sealing gasket (3), sealing gasket (5) at said pintle (2.1) front/rear end; Through connecing the threaded engagement of cover (4) and tensimeter (1) joint (1.1), realize syringe needle (2) and tensimeter (1) joint (1.1), connect being tightly connected between the cover (4).
2. evaporator tube chamber pressure pick-up unit according to claim 1 is characterized in that: said syringe needle (2) is the injector for medical purpose syringe needle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110164182 CN102829934A (en) | 2011-06-18 | 2011-06-18 | Pipe inner cavity pressure detector of evaporator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110164182 CN102829934A (en) | 2011-06-18 | 2011-06-18 | Pipe inner cavity pressure detector of evaporator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102829934A true CN102829934A (en) | 2012-12-19 |
Family
ID=47333148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110164182 Pending CN102829934A (en) | 2011-06-18 | 2011-06-18 | Pipe inner cavity pressure detector of evaporator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102829934A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736087A (en) * | 2016-05-05 | 2016-07-06 | 广西玉柴机器股份有限公司 | Oil pressure measuring device |
-
2011
- 2011-06-18 CN CN 201110164182 patent/CN102829934A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105736087A (en) * | 2016-05-05 | 2016-07-06 | 广西玉柴机器股份有限公司 | Oil pressure measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121219 |