CN104457061A - Nitrogen charging device used for leakage detection of gas collecting pipe assembly - Google Patents
Nitrogen charging device used for leakage detection of gas collecting pipe assembly Download PDFInfo
- Publication number
- CN104457061A CN104457061A CN201410594707.XA CN201410594707A CN104457061A CN 104457061 A CN104457061 A CN 104457061A CN 201410594707 A CN201410594707 A CN 201410594707A CN 104457061 A CN104457061 A CN 104457061A
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- China
- Prior art keywords
- charging device
- nitrogen charging
- base plate
- discharge
- card slot
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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
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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
- 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
The invention relates to a nitrogen charging device used for leakage detection of a gas collecting pipe assembly. The nitrogen charging device comprises a gas collecting pipe orifice sealing assembly and a nitrogen charging pipeline. The gas collecting pipe orifice sealing assembly comprises a rubber sealing plug, a metal sleeve, a metal backing plate, a fixed clamping groove and a fixed base plate. The rubber sealing plug is arranged in the metal sleeve, the metal sleeve is inserted into the fixed clamping groove from the bottom of the fixed clamping groove, the fixed clamping groove is clamped in the metal backing plate, the fixed base plate is installed at the position of a notch of the fixed clamping groove, and a main pipe orifice of a gas collecting pipe is inserted into the rubber sealing plug. The nitrogen charging pipeline comprises a metal pipe, a throttle valve and a pressure pipe. The head end of the metal pipe is connected with an outlet of the throttle valve, the tail end of the metal pipe is inserted into the rubber sealing plug from the bottom of the fixed base plate, an inlet of the throttle valve is connected with the pressure pipe, and the main pipe orifice of the gas collecting pipe is clamped into the rubber sealing plug and communicated with the tail end of the metal pipe. The nitrogen charging device used for leakage detection of the gas collecting pipe assembly solves the problems that an existing quick connector used for pipe orifice blocking is low in leakage detection efficiency and poor in safety.
Description
Technical field
The present invention relates to HVAC Project Engineer field, specifically the leak detection of collecting pipe component, particularly a kind of nitrogen charging device for collecting pipe component leak detection.
Background technology
At present, in the heat exchanger in HVAC Project Engineer field, often there is a larger pipeline as main discharge, the tube wall of main discharge is welded with the gas-collecting branch pipe of several pipe with small pipe diameters, and as shown in Figure 1,1 is main discharge, 2 is gas-collecting branch pipe, and 3 is discharge supervisor mouth.During refrigeration, refrigerant is assigned to each branch road of heat exchanger by main discharge, and when heating, the refrigerant that heat exchanger branch road is come is concentrated by main discharge.
In the production process of collecting pipe component, need in discharge system, to be filled with nitrogen from discharge supervisor mouth 3, nitrogen pressurize leak detection is filled to collecting pipe component, when nitrogen pressurize leak detection is filled to collecting pipe component system by a lot of manufacturing enterprise now, need to carry out shutoff with snap joint to the mouth of pipe of gas-collecting branch pipe, because collecting pipe component supervisor mouth bore is comparatively large, what have reaches φ 25.
When with snap joint clamping copper pipe, need to be wrenched hand valve, copper pipe caliber is larger, be wrenched hand valve firmly larger, when producing collecting pipe component in batches and needing leak detection, bother very much, leak detection efficiency is not high, and when nitrogen supercharging is to 2.8-3.2MPa in discharge system, easily flies out when the snap joint card of shutoff is not tight, there is potential safety hazard.
Summary of the invention
The object of this invention is to provide a kind of nitrogen charging device for collecting pipe component leak detection, described nitrogen charging device effectively can be responsible for mouth by shutoff discharge, improve safe application performance, leak detection efficiency can be improved again, in order to solve the problem of low, the poor stability of the existing snap joint for mouth of pipe shutoff leak detection efficiency.
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 comprises discharge ferrule assembly and nitrogen blanketing valve road, described discharge ferrule assembly comprises rubber seal plug, metallic sheath, metal caul, fixed card slot and fixed base plate, described rubber seal plug is located in metallic sheath, described fixed card slot is " п " shape structure, the bottom land of described fixed card slot is provided with the installing hole coordinating with metallic sheath and install, described metallic sheath inserts in fixed card slot by installing hole, described fixed card slot is stuck on metal caul by notch, described fixed base plate is arranged on the notch place of fixed card slot, discharge supervisor mouth inserts in rubber seal plug,
Described nitrogen blanketing valve road comprises metal tube, choke valve and force pipe, the middle part of described fixed base plate and metal caul is provided with through hole, the head end of described metal tube connects the outlet of choke valve, described metal tube tail end inserts from the bottom of fixed base plate along described through hole in rubber seal plug, the import of described choke valve is connected with force pipe, and discharge supervisor mouth snaps in described rubber seal plug, is communicated with the tail end of described metal tube.
According to nitrogen charging device of the present invention, between described metallic sheath and metal caul, be provided with an O-ring seals, described metallic sheath and O-ring seals close contact.
According to nitrogen charging device of the present invention, described nitrogen charging device is also provided with fixed support plate and cylinder, described fixed support plate is fixedly mounted on fixed base plate, the piston rod of described cylinder is connected and fixed gripper shoe, described cylinder is used for promoting discharge ferrule assembly by described fixed support plate, discharge is responsible for mouth and snaps in described rubber seal plug.
According to nitrogen charging device of the present invention, described fixed base plate is arranged on the notch place of fixed card slot by bolt.
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 improves greatly, and the discharge mouth of pipe of high pressure nitrogen system enclosed by air cylinder device is clamped.
2, easy to operate, only need start cylinder before leak detection and the gas collection mouth of pipe is inserted in rubber sleeve, and clamping, do not need need firmly pull assistant's valve as snap joint.After leak detection terminates, a face starts cylinder release, and discharge mouth of pipe nitrogen charging device can return original position.
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 is discharge supervisor mouth, and 4 is needle-valve, and 5 is metal tube, 6 is rubber seal plug, and 7 is metallic sheath, and 8 is fixed card slot, and 9 is metal caul, and 10 is fixed base plate, 11 is bolt, and 12 is O RunddichtringO, and 13 is fixed support plate, and 14 is cylinder.
Detailed description of the invention
Below in conjunction with drawings and Examples, the present invention is further detailed explanation.
At present when hunting leak to collecting pipe component, need to clamp copper pipe with snap joint, hand valve must be wrenched, leak detection efficiency is low, and potential safety hazard is there is in the process of filling nitrogen, 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 comprises discharge ferrule assembly and nitrogen blanketing valve road, discharge ferrule assembly is used for sealing discharge supervisor mouth, nitrogen blanketing valve road is used for being filled with nitrogen by discharge supervisor mouth to discharge system, carries out leak detection work to discharge system.
As shown in Figure 2, described discharge ferrule assembly comprises rubber seal plug, metallic sheath, metal caul, fixed card slot, fixed base plate and O type shape sealing ring, described rubber seal plug loads in metallic sheath, described fixed card slot is " п " shape structure, described fixed card slot is stuck on metal caul by bottom opening, described O-ring seals is arranged on metal caul, the installing hole coordinating with metallic sheath and install is provided with at the bottom of " п " shape structure grooves of described fixed card slot, described metallic sheath embeds in fixed card slot by installing hole, and with O type circle close contact, the discharge mouth of pipe inserts in rubber seal plug, described fixed base plate is arranged on the notch place of fixed card slot, with metal fixing plate, metallic sheath fixed head is fixed on rubber seal plug, and be tightened by bolts, mouth of pipe gas leakage when preventing supercharging nitrogen.
Described nitrogen blanketing valve road comprises metal tube, needle-valve and force pipe, the middle part of described fixed base plate and metal caul is provided with through hole, the head end of described metal tube connects the outlet of choke valve, described metal tube tail end inserts from the bottom of fixed base plate along described through hole in rubber seal plug, the import of described choke valve is connected with force pipe, and discharge supervisor mouth snaps in described rubber seal plug, is communicated with the tail end of described metal tube.
Nitrogen charging device of the present invention is also provided with fixed support plate and cylinder, one end that described fixed support plate is fixed is arranged on fixed base plate, the piston rod of described cylinder is connected and fixed the other end of gripper shoe, described cylinder is used for promoting discharge ferrule assembly by described fixed support plate, discharge is responsible for mouth and snaps in described rubber seal plug.When carrying out filling nitrogen leak detection, first starting cylinder and promoting discharge ferrule assembly, by main for discharge ferrule, and then in collecting pipe component, enclosing high pressure nitrogen by the needle-valve on nitrogen blanketing valve road by nitrogen charging device, carry out pressurize leak detection.
When using nitrogen charging device of the present invention to hunt leak, first start cylinder, cylinder promotes discharge ferrule assembly, rubber seal plug is blocked discharge supervisor mouth, and clamping.Then be filled with nitrogen by needle-valve pipeline to discharge system, to discharge system boost, after reaching the pressure of setting, lay down the force pipe being connected on needle-valve entrance.After leak detection, bleed off nitrogen in discharge system, cylinder release, original position return by discharge ferrule assembly.
Use nitrogen charging device of the present invention, only need start cylinder before leak detection and discharge is responsible in mouth insertion rubber sleeve, not need need firmly pull assistant's valve as snap joint.After leak detection terminates, only need start cylinder release, simple to operation, and improve security performance.
Claims (5)
1. the nitrogen charging device for collecting pipe component leak detection, it is characterized in that: described nitrogen charging device comprises discharge ferrule assembly and nitrogen blanketing valve road, described discharge ferrule assembly comprises rubber seal plug, metallic sheath, metal caul, fixed card slot and fixed base plate, described rubber seal plug is located in metallic sheath, described fixed card slot is " п " shape structure, the bottom land of described fixed card slot is provided with the installing hole coordinating with metallic sheath and install, described metallic sheath inserts in fixed card slot by installing hole, described fixed card slot is stuck on metal caul by notch, described fixed base plate is arranged on the notch place of fixed card slot, discharge supervisor mouth inserts in rubber seal plug,
Described nitrogen blanketing valve road comprises metal tube, choke valve and force pipe, the middle part of described fixed base plate and metal caul is provided with through hole, the head end of described metal tube connects the outlet of choke valve, described metal tube tail end inserts from the bottom of fixed base plate along described through hole in rubber seal plug, the import of described choke valve is connected with force pipe, and discharge supervisor mouth snaps in described rubber seal plug, is communicated with the tail end of described metal tube.
2. nitrogen charging device according to claim 1, is characterized in that being provided with an O-ring seals between described metallic sheath and metal caul, described metallic sheath and O-ring seals close contact.
3. nitrogen charging device according to claim 1, it is characterized in that described nitrogen charging device is also provided with fixed support plate and cylinder, described fixed support plate is fixedly mounted on fixed base plate, the piston rod of described cylinder is connected and fixed gripper shoe, described cylinder is used for promoting discharge ferrule assembly by described fixed support plate, discharge is responsible for mouth and snaps in described rubber seal plug.
4. nitrogen charging device according to claim 1, is characterized in that described fixed base plate is arranged on the notch place of fixed card slot by bolt.
5. nitrogen charging device according to claim 1, is characterized 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 true CN104457061A (en) | 2015-03-25 |
| CN104457061B CN104457061B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| 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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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 |
|---|---|
| CN104457061B (en) | 2016-09-28 |
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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. |