CN201444108U - Differential pressure detecting device - Google Patents

Differential pressure detecting device Download PDF

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Publication number
CN201444108U
CN201444108U CN2009200168609U CN200920016860U CN201444108U CN 201444108 U CN201444108 U CN 201444108U CN 2009200168609 U CN2009200168609 U CN 2009200168609U CN 200920016860 U CN200920016860 U CN 200920016860U CN 201444108 U CN201444108 U CN 201444108U
Authority
CN
China
Prior art keywords
plc controller
solenoid valve
pipeline
pressure
tensimeter
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2009200168609U
Other languages
Chinese (zh)
Inventor
吴国滨
吴涛
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GRAND OCEAN AUTO A/C ENGINEERING (DALIAN) Co Ltd
Original Assignee
GRAND OCEAN AUTO A/C ENGINEERING (DALIAN) Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by GRAND OCEAN AUTO A/C ENGINEERING (DALIAN) Co Ltd filed Critical GRAND OCEAN AUTO A/C ENGINEERING (DALIAN) Co Ltd
Priority to CN2009200168609U priority Critical patent/CN201444108U/en
Application granted granted Critical
Publication of CN201444108U publication Critical patent/CN201444108U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a detecting device, in particular to a differential pressure detecting device. A power distribution box is installed on a frame. A pipeline is installed in the power distribution box. One end of the pipeline is an air inlet and the other end is an air outlet. A control panel, a pressure gauge and an electromagnetic valve are installed outside the power distribution box. The pipeline is communicated with the pressure gauge and the electromagnetic valve. A PLC controller is installed in the power distribution box. The pressure gauge is connected with the PLC controller in a signaling way. The PLC controller is connected with an alarm buzzer, an operation indicating lamp and a relay in a driving and signaling way. The utility model has the advantages that the structure is simple, the leakage in the air conditioning condenser is accurately judged by detecting the change of the pressure of the air in the condenser, the pressure in the workpiece is detected by the PLC controller only when the compressed air with certain pressure is required and is pressed into the workpiece, the use is very convenient, the detection is accurate, the drying process after water detection is effectively avoided and thereby the energy is greatly saved.

Description

Pressure test device
Technical field:
The utility model relates to pick-up unit, especially for the pick-up unit of omission survey in the air-conditioning condenser.
Background technology:
The interior omission of some present air-conditioning condensers is surveyed, what adopt is that condenser inside is charged into certain gas, put into tank inspection again, see if there is bubble and produce, judge whereby whether the inside of air-conditioning condenser leaks, not only need during operation condenser is shifted from one place to another, and the artificial visually examine detects and to have human error, and the inaccurate and defective products that causes product to detect flows into next procedure, after Work inspection device finishes, also need workpiece is dried, waste time and energy and waste energy.
Summary of the invention:
The purpose of this utility model is to overcome above-mentioned not enough problem, and a kind of pressure test device is provided, and is simple in structure small and exquisite, convenient and practical, efficient and simple to operate, energy-conserving and environment-protective.
The technical scheme that the utility model is adopted for achieving the above object is: pressure test device, panel box is installed on the frame, pipeline is housed in the panel box, and pipeline one end is an air intake opening, and the other end is the gas outlet, panel box is equipped with control panel, tensimeter and solenoid valve outward, pipeline is communicated with tensimeter and solenoid valve, and the PLC controller is housed in the panel box, and the tensimeter signal connects the PLC controller, PLC controller drives signal connects alarm buzzer, relay indicating light and relay.
Described solenoid valve comprises air inlet solenoid valve and exhaust solenoid valve, and relay drives and connects air inlet solenoid valve and exhaust solenoid valve.
Power light, alarm buzzer, stop button and relay indicating light are set on the described control panel.
Described tensimeter comprises pointer tensimeter and digital display manometer.
The utility model is simple in structure, utilize the variation that detects the condenser internal gas pressure, judge accurately whether air-conditioning condenser leaks, only need to be equipped with the pressurized air of certain pressure, simple workpiece holder and supporting electric control system get final product, the pressurized air of certain pressure is pressed into the inside of workpiece, utilize the PLC controller that the workpiece pressure inside is detected again, if in the regular hour scope, the workpiece pressure inside does not descend and illustrates that the workpiece leakproofness is good, do not leak,, illustrate that the workpiece leakproofness is bad if workpiece gas inside pressure has dropped to certain limit.The utility model is very easy to use, whole process does not need the operator that it is carried out complicated operations, only need to use special jig to block the detection workpiece, trample foot-switch again, the wait several seconds just can be known testing result, this equipment can also effectively be avoided water inspection baking operation afterwards, so greatly energy savings except detecting accurately.Effectively overcome water and examine inaccurate drawback, improve accuracy of detection, guarantee product quality.
Description of drawings:
Fig. 1 is the utility model front view.
Fig. 2 is the utility model side view.
Fig. 3 is the utility model vertical view.
Fig. 4 is the utility model inner structure synoptic diagram.
Fig. 5 is electrical principle Fig. 1.
Fig. 6 is electrical principle Fig. 2 (PLC input).
Fig. 7 is electrical principle Fig. 3 (PLC output).
Fig. 8 is a schematic diagram of gas circuit.
Among the figure: 1, digital display manometer 2, pointer tensimeter 3, power light 4, relay indicating light 5, hummer 6, stop button 7, panel box 8, air inlet solenoid valve 9, foot-switch 10, air intake opening 11, main valve 12, exhausr port 13, gas outlet 14 anchor clamps, 15 workpiece, 16 exhaust solenoid valves 17, connection terminal 18, main breaker 19, PLC controller 20, wire casing 21, relay.
Embodiment:
The utility model pressure test device is shown in Fig. 1-7, panel box is installed on the frame, pipeline is housed in the panel box, pipeline one end is an air intake opening, the other end is the gas outlet, panel box is equipped with control panel, tensimeter and solenoid valve outward, pipeline is communicated with tensimeter and solenoid valve, the PLC controller is housed in the panel box, the tensimeter signal connects the PLC controller, PLC controller drives signal connects alarm buzzer, relay indicating light and relay, and solenoid valve, relay indicating light and tensimeter and panel box 7 interior connection terminals 17 are connected.
During work, earlier main breaker 18 is closed, power light 3 is bright, air intake opening 10 is connected to compressed air gas source, gas outlet 13 1 ends are connected to anchor clamps 14 by flexible pipe, pressurized air enters into pipeline inside by main valve 11, on pointer tensimeter 2, show admission pressure, adjust pointer tensimeter 2, connect jig 14 behind workpiece 15, trample foot-switch 9 again, this moment, air inlet solenoid valve 8 and exhaust solenoid valve 16 were driven by relay 21, program needs according to PLC controller 19 open and close automatically, gas is connected to detected workpiece 15 by jig 14 again by digital display manometer 1, pressurized air is inflated workpiece inside by jig, inflationtime can be provided with by PLC controller 19, detect by the gaseous tension in 1 pair of pipeline of digital display manometer simultaneously and demonstrate pressure simultaneously, after inflation finishes, it is packing stage, this dwell time also can have PLC controller 19 to set, this step be detect workpiece at the appointed time the pressure of gas what descend, detection signal is delivered to PLC controller 19 inside, by the variation of PLC controller 19 according to detected workpiece internal gas pressure, providing workpiece is the non-defective unit or the judgement of defective products.Thus as the judgement of workpiece product quality, judge that finishing the back controls 19 pilot relays 21 by PLC and drive exhaust solenoid valves 16 and opens, the pressurized air of workpiece inside is discharged to gas in the atmosphere by exhausr port 12.
If workpiece is a non-defective unit, then hummer 5 can ring and promptly stop for one, and the prompting workpiece sensing finishes, product is good, can carry out next workpiece sensing, if workpiece is bad, then hummer 5 can be rung always, defective products appears in prompting, need to handle, need to press stop button 6 after disposing, relay indicating light 4 extinguishes, just can carry out the detection of next workpiece, prevent that defective products from flowing into next procedure.

Claims (4)

1. pressure test device, it is characterized in that: panel box is installed on the frame, panel box is equipped with control panel, tensimeter and solenoid valve outward, pipeline, pipeline one end is an air intake opening, the other end is the gas outlet, tensimeter and solenoid valve are housed on the pipeline, the PLC controller is housed in the panel box, and the tensimeter signal connects the PLC controller, and PLC controller drives signal connects alarm buzzer.
2. pressure test device according to claim 1 is characterized in that: solenoid valve comprises air inlet solenoid valve and exhaust solenoid valve, and relay drives and connects air inlet solenoid valve and exhaust solenoid valve.
3. pressure test device according to claim 1 is characterized in that: power light, alarm buzzer, stop button and relay indicating light are set on the control panel.
4. pressure test device according to claim 1 is characterized in that: tensimeter comprises pointer tensimeter and digital display manometer.
CN2009200168609U 2009-08-21 2009-08-21 Differential pressure detecting device Expired - Lifetime CN201444108U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009200168609U CN201444108U (en) 2009-08-21 2009-08-21 Differential pressure detecting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009200168609U CN201444108U (en) 2009-08-21 2009-08-21 Differential pressure detecting device

Publications (1)

Publication Number Publication Date
CN201444108U true CN201444108U (en) 2010-04-28

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ID=42548792

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009200168609U Expired - Lifetime CN201444108U (en) 2009-08-21 2009-08-21 Differential pressure detecting device

Country Status (1)

Country Link
CN (1) CN201444108U (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102564712A (en) * 2011-12-22 2012-07-11 上海夏普电器有限公司 Device for filling pressure and monitoring pressure leakage
CN105422535A (en) * 2015-12-23 2016-03-23 西安秦森科技有限公司 Automatic control system preventing internal leakage and valve thereof
CN107255554A (en) * 2017-08-15 2017-10-17 广州市维视电子有限公司 A kind of multifunctional water-proofing fog detecting system
CN107328534A (en) * 2015-10-13 2017-11-07 吴红平 Welding airtightness test device and its method of testing

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102564712A (en) * 2011-12-22 2012-07-11 上海夏普电器有限公司 Device for filling pressure and monitoring pressure leakage
CN107328534A (en) * 2015-10-13 2017-11-07 吴红平 Welding airtightness test device and its method of testing
CN107328534B (en) * 2015-10-13 2019-11-05 吴红平 Welding airtightness test device and its test method
CN105422535A (en) * 2015-12-23 2016-03-23 西安秦森科技有限公司 Automatic control system preventing internal leakage and valve thereof
CN107255554A (en) * 2017-08-15 2017-10-17 广州市维视电子有限公司 A kind of multifunctional water-proofing fog detecting system

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Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20100428

Effective date of abandoning: 20110210

C20 Patent right or utility model deemed to be abandoned or is abandoned