CN104457061B - A kind of nitrogen charging device for collecting pipe component leak detection - Google Patents
A kind of nitrogen charging device for collecting pipe component leak detection Download PDFInfo
- Publication number
- CN104457061B CN104457061B CN201410594707.XA CN201410594707A CN104457061B CN 104457061 B CN104457061 B CN 104457061B CN 201410594707 A CN201410594707 A CN 201410594707A CN 104457061 B CN104457061 B CN 104457061B
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- China
- Prior art keywords
- nitrogen charging
- card slot
- rubber seal
- charging device
- fixed card
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B45/00—Arrangements for charging or discharging refrigerant
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/001—Charging refrigerant to a cycle
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
nullThe present invention relates to a kind of nitrogen charging device for collecting pipe component leak detection，Described nitrogen charging device includes discharge ferrule assembly and nitrogen charging pipeline，Discharge ferrule assembly includes rubber seal plug、Metallic sheath、Metal caul、Fixed card slot and fixing base plate，Rubber seal plug is located in metallic sheath，Described metallic sheath is inserted in fixed card slot by the bottom land of fixed card slot，Fixed card slot is stuck on metal caul，Fixing base plate is arranged at the notch of fixed card slot，Discharge supervisor's mouth inserts in rubber seal plug，Described nitrogen charging pipeline includes metal tube、Choke valve and manometer tube，The head end of described metal tube connects the outlet of choke valve，Described metal tube tail end inserts in rubber seal plug from the bottom of fixing base plate，The import of described choke valve connects manometer tube，Discharge supervisor's mouth snaps in described rubber seal plug、Connect with the tail end of metal tube.Efficiency is low, the problem of poor stability to solve the existing snap joint leak detection for mouth of pipe closure.
Description
Technical field
The present invention relates to the leak detection in HVAC Project Engineer field, specifically collecting pipe component, particularly one be used for
The nitrogen charging device of collecting pipe component leak detection.
Background technology
At present, in the heat exchanger in HVAC Project Engineer field, often there is a bigger pipeline as main gas collection
Pipe, is welded with the gas-collecting branch pipe of several pipe with small pipe diameters on the tube wall of main discharge, as it is shown in figure 1,1
Being main discharge, 2 is gas-collecting branch pipe, and 3 are responsible for mouth for discharge.During refrigeration, coolant is divided by main discharge
Being fitted on each branch road of heat exchanger, when heating, the coolant that heat exchanger branch road is come by main discharge is concentrated.
In the production process of collecting pipe component, need to fill in discharge system from discharge supervisor's mouth 3
Entering nitrogen, collecting pipe component carries out nitrogen charging pressurize leak detection, the most a lot of manufacturing enterprises are to collecting pipe component
During system nitrogen charging pressurize leak detection, need with snap joint, the mouth of pipe of gas-collecting branch pipe to be blocked, because collection
Trachea assembly supervisor's mouth bore is relatively big, and have reaches φ 25.
When with snap joint clamping copper pipe, needing to be wrenched hands valve, copper pipe caliber is the biggest, is wrenched hands valve and uses
Power is the biggest, when producing collecting pipe component in batches and needing leak detection, bothers very much, hunts leak inefficient, and
When in discharge system, nitrogen supercharging is to 2.8-3.2MPa, the snap joint card of closure easily flies out time not tight
Go, there is potential safety hazard.
Summary of the invention
It is an object of the invention to provide a kind of nitrogen charging device for collecting pipe component leak detection, described nitrogen charging dress
Put and can effectively block discharge supervisor's mouth, improve safe application performance, leak detection efficiency can be improved again, in order to
Efficiency is low, the problem of poor stability to solve the existing snap joint leak detection for mouth of pipe closure.
For achieving the above object, the solution of the present invention is: a kind of nitrogen charging device for collecting pipe component leak detection,
Described nitrogen charging device includes discharge ferrule assembly and nitrogen charging pipeline, and the described discharge mouth of pipe is close
Sealing assembly includes rubber seal plug, metallic sheath, metal caul, fixed card slot and fixing base plate, described
Rubber seal plug be located in metallic sheath, described fixed card slot is " п " shape structure, described fixing
The bottom land of draw-in groove is provided with and coordinates the installing hole installed with metallic sheath, and described metallic sheath is inserted by installing hole
Entering in fixed card slot, described fixed card slot is stuck on metal caul by notch, described fixing base plate
Being arranged at the notch of fixed card slot, discharge supervisor's mouth inserts in rubber seal plug；
Described nitrogen charging pipeline includes metal tube, choke valve and manometer tube, described fixing base plate and metal gasket
The middle part of plate is provided with through hole, and the head end of described metal tube connects the outlet of choke valve, described metal tube
Tail end inserts in rubber seal plug from the bottom of fixing base plate along described through hole, entering of described choke valve
Mouth connects manometer tube, and discharge is responsible in mouth snaps in described rubber seal plug and described metal tube
Tail end connection.
According to nitrogen charging device of the present invention, between described metallic sheath and metal caul, it is provided with one
Individual O-ring seals, described metallic sheath is in close contact with O-ring seals.
According to nitrogen charging device of the present invention, it is gentle that described nitrogen charging device is additionally provided with fixed support plate
Cylinder, described fixed support plate is fixedly mounted on fixing base plate, and the piston rod of described cylinder connects solid
Determining gripper shoe, described cylinder is used for promoting discharge ferrule assembly by described fixed support plate,
Discharge is responsible for mouth snap in described rubber seal plug.
According to nitrogen charging device of the present invention, described fixing base plate is arranged on fixed card slot by bolt
Notch at.
According to nitrogen charging device of the present invention, described choke valve is needle-valve.
The beneficial effect that the present invention reaches: 1, processing safety is greatly improved, by air cylinder device by system
The discharge mouth of pipe of the high pressure nitrogen enclosed is clamped.
2, easy to operate, only need to start cylinder before leak detection and the gas collection mouth of pipe is inserted in rubber sleeve, and clamping,
It is not required to as assistant's valve need to be firmly pulled in snap joint.After leak detection terminates, only need to start cylinder pressure, discharge
Mouth of pipe nitrogen charging device can be return in situ.
Accompanying drawing explanation
Fig. 1 is the structural representation of collecting pipe component；
Fig. 2 is the structural representation of discharge ferrule assembly of the present invention.
In figure: 1 is main discharge, 2 is gas-collecting branch pipe, and 3 are responsible for mouth for discharge, and 4 is needle-valve, 5
For metal tube, 6 is rubber seal plug, and 7 is metallic sheath, and 8 is fixed card slot, and 9 is metal caul,
10 is fixing base plate, and 11 is bolt, and 12 is O-ring seals, and 13 is fixed support plate, and 14 is cylinder.
Detailed description of the invention
The present invention is further detailed explanation with embodiment below in conjunction with the accompanying drawings.
At present when collecting pipe component is hunted leak, need with snap joint clamping copper pipe, it is necessary to be wrenched
Hands valve, leak detection efficiency is low, and there is potential safety hazard during nitrogen charging, for solving such problem,
The present invention proposes a kind of nitrogen charging device for collecting pipe component leak detection, and specific embodiment is as follows:
Embodiment:
Nitrogen charging device of the present invention includes discharge ferrule assembly and nitrogen charging pipeline, discharge pipe
Mouth black box is for sealing discharge supervisor's mouth, and nitrogen charging pipeline is for being responsible for mouth by discharge
It is filled with nitrogen to discharge system, discharge system is carried out work of hunting leak.
As in figure 2 it is shown, described discharge ferrule assembly includes rubber seal plug (6), metal
Set (7), metal caul (9), fixed card slot (8), fixing base plate (10) and O-ring seals (12),
Described rubber seal plug loads in metallic sheath (7), and described fixed card slot (8) is " п " shape
Structure, described fixed card slot is stuck on metal caul (9) by bottom opening, and described O shape seals
Circle (12) is arranged on metal caul (9), is provided with at the bottom of " п " shape structure grooves of described fixed card slot
Coordinate the installing hole installed with metallic sheath (7), described metallic sheath embeds fixed card slot (8) by installing hole
In, and be in close contact with O-ring seals, the discharge mouth of pipe inserts in rubber seal plug (6), described
Fixing base plate (10) be arranged at the notch of fixed card slot, fix base plate by solid for metallic sheath by metal system
It is scheduled on rubber seal plug, and is tightened by bolts, mouth of pipe gas leakage when preventing supercharging nitrogen.
Described nitrogen charging pipeline includes metal tube (5), needle-valve (4) and manometer tube, described fixing base plate (10)
Being provided with through hole with the middle part of metal caul (9), the head end of described metal tube (5) connects needle-valve (4)
Outlet, described metal tube tail end inserts rubber seal plug from the bottom of fixing base plate along described through hole
(6) in, the import of described needle-valve connects manometer tube, and discharge supervisor's mouth (3) snaps in described rubber
Connect with the tail end of described metal tube (5) in glue seal plug (6).
The nitrogen charging device of the present invention is additionally provided with fixed support plate (13) and cylinder (14), and described is fixing
One end that gripper shoe is fixed is arranged on fixing base plate (10), and the piston rod of described cylinder (14) is even
Connecing the other end of fixed support plate (13), described cylinder is for promoting by described fixed support plate
Discharge ferrule assembly, is responsible for discharge mouth (3) and snaps in described rubber seal plug.?
When carrying out nitrogen charging leak detection, first start cylinder and promote discharge ferrule assembly, discharge is responsible for mouth
(3) seal, sealed in collecting pipe component by the needle-valve (4) of nitrogen charging pipeline by nitrogen charging device the most again
Enter high pressure nitrogen, carry out pressurize leak detection.
When the nitrogen charging device using the present invention is hunted leak, first starting cylinder, cylinder promotes discharge pipe
Mouth black box, blocks discharge supervisor's mouth, and clamping by rubber seal plug.Then by needle-valve pipe
Road is filled with nitrogen to discharge system, to discharge system boost, after reaching the pressure set, falls to connect
Manometer tube at needle-valve entrance.After leak detection, bleed off nitrogen in discharge system, cylinder pressure, collection
Trachea ferrule assembly is return in situ.
Use the nitrogen charging device of the present invention, only need to start cylinder before leak detection and discharge is responsible for mouth insertion rubber
In set, it is not required to as assistant's valve need to be firmly pulled in snap joint.After leak detection terminates, only need to start cylinder pressure,
Simple to operation, and improve security performance.
Claims (5)
1. the nitrogen charging device for collecting pipe component leak detection, it is characterised in that: described nitrogen charging device
Including discharge ferrule assembly and nitrogen charging pipeline, described discharge ferrule assembly includes rubber
Seal plug, metallic sheath, metal caul, fixed card slot and fixing base plate, described rubber seal plug
Being located in metallic sheath, described fixed card slot is " п " shape structure, and the bottom land of described fixed card slot is provided with
Coordinate the installing hole installed with metallic sheath, described metallic sheath inserts in fixed card slot by installing hole, institute
The fixed card slot stated is stuck on metal caul by notch, and described fixing base plate is arranged on fixed card slot
At notch, discharge supervisor's mouth inserts in rubber seal plug；
Described nitrogen charging pipeline includes metal tube, choke valve and manometer tube, described fixing base plate and metal gasket
The middle part of plate is provided with through hole, and the head end of described metal tube connects the outlet of choke valve, described metal tube
Tail end inserts in rubber seal plug from the bottom of fixing base plate along described through hole, entering of described choke valve
Mouth connects manometer tube, and discharge is responsible in mouth snaps in described rubber seal plug and described metal tube
Tail end connection.
Nitrogen charging device the most according to claim 1, it is characterised in that described metallic sheath and metal gasket
Being provided with an O-ring seals between plate, described metallic sheath is in close contact with O-ring seals.
Nitrogen charging device the most according to claim 1, it is characterised in that described nitrogen charging device also sets up
Fixed support plate and cylinder, described fixed support plate is had to be fixedly mounted on fixing base plate, described gas
The piston rod of cylinder connects fixed support plate, and described cylinder is for promoting collection by described fixed support plate
Trachea ferrule assembly, is responsible for discharge mouth and snaps in described rubber seal plug.
Nitrogen charging device the most according to claim 1, it is characterised in that described fixing base plate passes through spiral shell
Bolt is arranged at the notch of fixed card slot.
Nitrogen charging device the most according to claim 1, it is characterised in that described choke valve is needle-valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410594707.XA CN104457061B (en) | 2014-10-29 | 2014-10-29 | A kind of nitrogen charging device for collecting pipe component leak detection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410594707.XA CN104457061B (en) | 2014-10-29 | 2014-10-29 | A kind of nitrogen charging device for collecting pipe component leak detection |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104457061A CN104457061A (en) | 2015-03-25 |
| CN104457061B true CN104457061B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410594707.XA Active CN104457061B (en) | 2014-10-29 | 2014-10-29 | A kind of nitrogen charging device for collecting pipe component leak detection |
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| Country | Link |
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| CN (1) | CN104457061B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2591606Y (en) * | 2002-07-11 | 2003-12-10 | 周希乔 | Pipe type leak hunting instrument |
| KR20050118828A (en) * | 2004-06-15 | 2005-12-20 | 주식회사 대우일렉트로닉스 | Apparatus for sealing nitrogen in evaporator |
| CN201202858Y (en) * | 2008-04-19 | 2009-03-04 | 潘炎忠 | Gas charging and pressure retaining valve of air conditioner inner machine |
| GB2453986A (en) * | 2007-10-25 | 2009-04-29 | Taylor Freezer | Refrigeration system testing tool and method |
| CN202305154U (en) * | 2011-11-14 | 2012-07-04 | 北京冶核技术发展有限责任公司 | Leakage detection device for heat transfer tube of heat exchanger |
-
2014
- 2014-10-29 CN CN201410594707.XA patent/CN104457061B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2591606Y (en) * | 2002-07-11 | 2003-12-10 | 周希乔 | Pipe type leak hunting instrument |
| KR20050118828A (en) * | 2004-06-15 | 2005-12-20 | 주식회사 대우일렉트로닉스 | Apparatus for sealing nitrogen in evaporator |
| GB2453986A (en) * | 2007-10-25 | 2009-04-29 | Taylor Freezer | Refrigeration system testing tool and method |
| CN201202858Y (en) * | 2008-04-19 | 2009-03-04 | 潘炎忠 | Gas charging and pressure retaining valve of air conditioner inner machine |
| CN202305154U (en) * | 2011-11-14 | 2012-07-04 | 北京冶核技术发展有限责任公司 | Leakage detection device for heat transfer tube of heat exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104457061A (en) | 2015-03-25 |
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Address after: 221600 Jiangsu city of Nantong Province, Nantong Development Zone, Road No. 1692 building 20 Patentee after: Jiangsu Tianshu electrical Limited by Share Ltd Address before: 221600 Jiangsu city of Nantong Province, Nantong Development Zone, Road No. 1692 building 20 Patentee before: Jiangsu Tianshu Electrical Appliance Co., Ltd. |