CN202803060U

CN202803060U - Surface mount technology (SMT) varactor energy-saving nitrogen making machine

Info

Publication number: CN202803060U
Application number: CN201220323879XU
Authority: CN
Inventors: 王开锋; 乐达文
Original assignee: GUANGDONG TAIAN YIQIAO GAS EQUIPMENT CO Ltd
Current assignee: GUANGDONG TAIAN YIQIAO GAS EQUIPMENT CO Ltd
Priority date: 2012-07-03
Filing date: 2012-07-03
Publication date: 2013-03-20
Anticipated expiration: 2022-07-03

Abstract

The utility model discloses a surface mount technology (SMT) varactor energy-saving nitrogen making machine, and relates to the technical field of a nitrogen making machine. An air outflow manual control ball valve I, an air outflow manual control ball valve II, an air outflow manual control ball valve III and an air outflow manual control ball valve IIII are arranged on a pipeline I; a total air outflow angle seat valve and an air outflow angle seat valve are also arranged on the pipeline I; a voltage-sharing angle seat valve is arranged on a pipeline II; an air inflow angle seat valve, an emptying angle seat valve, an air inflow manual control ball valve I, an air inflow manual control ball valve II, an air inflow manual control ball valve III and an air inflow manual control ball valve IIII are arranged on a pipeline IIII; a total air inflow angle seat valve is arranged on the pipeline IIII; and the pipeline IIII is connected to the pipeline II by a pipeline III. The SMT varactor energy-saving nitrogen making machine is stably operated and reasonable in structure; an enterprise can automatically adjust gears, for making the nitrogen quantity, of the nitrogen making machine according to actual demands; and moreover, by arranging a frequency conversion air compressor, the SMT varactor energy-saving nitrogen making machine can be perfectly applied to production of SMT nitrogen reflow soldering furnaces to fulfill the aim of energy-saving production.

Description

SMT transfiguration energy-efficient nitrogen generator

Technical field:

The utility model relates to the nitrogen making machine technical field, refers in particular to SMT transfiguration energy-efficient nitrogen generator.

Background technology:

PSA (Pressure Swing Adsorption) swing adsorption nitrogen producing apparatus: (hereinafter referred to as the PSA nitrogen-making device) is a kind of device of producing nitrogen by pressure-variable adsorption.Utilize carbon molecular sieve to separate from pure, dry compressed air by pressure-variable adsorption, extract the equipment of nitrogen.Nitrogen is introduced the backflow warm area of SMT nitrogen reflow soldering furnace, to obtain the technology and equipment of better welding quality, improve dynamic property and the glossiness of solder joint.General oxygen content should be controlled between 300ppm (99.97%)～1000ppm (99.9%).PSA nitrogen-making device in the air separation equipment provides the application of nitrogen to the SMT nitrogen reflow soldering furnace.

At present, most popular a kind of technology and technique in the Electronic Assemblies industry, surface installation technique (surface mounting technology).The English SMT technology that is called for short, SMT nitrogen reflow soldering furnace are a kind ofly to introduce nitrogen in the SMT Reflow Soldering, to obtain the technology and equipment of better welding quality.

The outstanding feature of this machine is exactly in order to reach preferably welding quality, and the Control for Oxygen Content of backflow warm area is tight, and [be about between 300 (99.97%)～1000ppm (99.9%), normal conditions 1000ppm (99.9%) is the most suitable; So generally can adopt nitrogen as protection gas.If adopt purer nitrogen protection, not only can greatly increase the cost of protective gas, and the impact of the dynamic property of butt welding point is also little.Electronic Assemblies enterprise all more or less have several such machines, general nitrogen air supply source all adopts the PSA nitrogen-making device, if the actual number of units by the actual SMT nitrogen reflow soldering furnace that has is equipped with common PSA nitrogen-making device, if when dull and rush season occurring in producing, cause the nitrogen amount processed of nitrogen making machine to be far longer than the use amount of SMT nitrogen reflow soldering furnace, make the running status of air compressor machine and nitrogen making machine long-term disposal high yield, increased operating cost, cause the waste of resource.

The utility model content:

The utility model device is the defective for present technology, practical situation for the Electronic Assemblies SMT of enterprise nitrogen reflow soldering furnace reality, special a kind of energy-efficient nitrogen generator of developing, can be equipped with different types according to the practical condition of enterprise, to reach energy-conservation purpose, it is stable, rational in infrastructure, enterprise can be according to the actual needs, regulate voluntarily the gear that nitrogen making machine produces the nitrogen amount, add the frequency conversion air compressor of outfit, can perfectly be applied to reach the purpose of production energy-saving in the middle of the production of SMT nitrogen reflow soldering furnace.

For achieving the above object, the utility model adopts following technical scheme, it comprises support body, an adsorption tower, No. two adsorption towers, No. three adsorption towers, No. four adsorption towers, program control case, support body is provided with adsorption tower No. one, No. two adsorption towers, No. three adsorption towers, No. four adsorption towers, program control case, an adsorption tower, No. two adsorption towers, No. three adsorption towers, No. four adsorption towers are by a pipeline, No. two pipelines, No. three pipelines, No. four pipeline mutual conduction, No. one pipeline is provided with the manually control ball valve of giving vent to anger No. one, give vent to anger for No. two and manually control ball valve, give vent to anger for No. three and manually control ball valve, give vent to anger for No. four and manually control ball valve, also be provided with total efflux angles seat valve on the pipeline, the efflux angles seat valve, No. two pipelines are provided with all presses angle pedestal valve, No. four pipeline is provided with the flow inlet angle seat valve, the emptying angle pedestal valve, ball valve is manually controlled in an air inlet, ball valve is manually controlled in No. two air inlets, ball valve is manually controlled in No. three air inlets, ball valve is manually controlled in No. four air inlets, and No. three pipeline is provided with total flow inlet angle seat valve.No. four device for cleaning pipeline is crossed No. three pipelines and No. two pipeline conductings.

Be provided with the PLC controller in the described program control case, nitrogen analyzer, magnetic valve.

A described adsorption tower, No. two adsorption towers, No. three adsorption towers, No. four adsorption towers are respectively equipped with Pressure gauge.

A described adsorption tower, No. two adsorption towers are at least more than two, and No. three adsorption towers, No. four adsorption towers are at least more than two.

The utility model beneficial effect is: support body is provided with adsorption tower No. one, No. two adsorption towers, No. three adsorption towers, No. four adsorption towers, program control case, an adsorption tower, No. two adsorption towers, No. three adsorption towers, No. four adsorption towers are by a pipeline, No. two pipelines, No. three pipelines, No. four pipeline mutual conduction, No. one pipeline is provided with the manually control ball valve of giving vent to anger No. one, give vent to anger for No. two and manually control ball valve, give vent to anger for No. three and manually control ball valve, give vent to anger for No. four and manually control ball valve, also be provided with total efflux angles seat valve on the pipeline, the efflux angles seat valve, No. two pipelines are provided with all presses angle pedestal valve, and it is more remarkable to transfer to required frequency energy-saving effect when changing between different gears.

Description of drawings:

Fig. 1 is structural representation of the present utility model;

Fig. 2 is control circuit figure of the present utility model.

The specific embodiment:

See that Fig. 1 is to shown in Figure 2: the utility model comprises support body 1, an adsorption tower 2, No. two adsorption towers 3, No. three adsorption towers 4, No. four adsorption towers 5, program control case 60, support body 1 is provided with adsorption tower 2 No. one, No. two adsorption towers 3, No. three adsorption towers 4, No. four adsorption towers 5, program control case 60, an adsorption tower 2, No. two adsorption towers 3, No. three adsorption towers 4, No. four adsorption towers 5 are by a pipeline 100, No. two pipelines 200, No. three pipelines 300, No. four pipeline 400 mutual conduction, No. one pipeline 100 is provided with the manually control ball valve 11 of giving vent to anger No. one, give vent to anger for No. two and manually control ball valve 21, give vent to anger for No. three and manually control ball valve 51, give vent to anger for No. four and manually control ball valve 41, also be provided with total efflux angles seat valve 8 on the pipeline 100, efflux angles seat valve 9, No. two pipelines 200 are provided with all presses angle pedestal valve 10, No. four pipeline 400 is provided with flow inlet angle seat valve 7, emptying angle pedestal valve 6, ball valve 22 is manually controlled in an air inlet, ball valve 32 is manually controlled in No. two air inlets, ball valve 42 is manually controlled in No. three air inlets, ball valve 52 is manually controlled in No. four air inlets, No. three pipeline 300 is provided with 12, No. four pipelines of total flow inlet angle seat valve 400 by No. three pipelines 300 and No. two pipeline 200 conductings.

Be provided with the PLC controller in the described program control case 60, nitrogen analyzer, magnetic valve.

A described adsorption tower 2, No. two adsorption towers 3, No. three adsorption towers 4, No. four adsorption towers 5 are respectively equipped with Pressure gauge 500.

A described adsorption tower 2, No. two adsorption towers 3 are at least more than two, and No. three adsorption towers 4, No. four adsorption towers 5 are at least more than two.

At present, what electron trade was used more SMT nitrogen reflow soldering furnace is about 25m3/h/ platform (the nitrogen output of the required outfit of machinery equipment of considering the surplus capacity reality of use strengthens 8% approximately) with the nitrogen amount, can extrapolate following data thus:

1	2	3	4	5	6	7	8
								27m ³/h	55m ³/h	85m ³/h	110m ³/h	140m ³/h	165m ³/h	200m ³/h	220m ³/h

The quantity of the SMT nitrogen reflow soldering furnace that the special-purpose transfiguration energy-efficient nitrogen generator of this kind of SMT can have according to enterprise practical and the operating position when producing at ordinary times to be the suitable type of enterprise's custom-made by size.Product nitrogen amount can be divided into low, in, high-grade three gears.According to the actual conditions of enterprise, with following theory configuration type: embodiment one

For example: there are 3 SMT nitrogen reflux stoves in certain enterprise, (if buy common PSA nitrogen-making device, then needs to buy 85m ³The type of/h), and the operating position of enterprise practical is, generally often opens at ordinary times two, only opens one when producing dull season, and if three SMT nitrogen reflux stove standard-sized sheets when producing the busy season are simple use 85m ³The common PSA nitrogen-making device of/h, when only opening one or two SMT nitrogen reflow soldering furnaces, the demand of nitrogen only has 27 to 55m ³/ h, and actual product nitrogen amount 85m ³/ h causes waste for no reason, and the power consumption of air compressor machine does not therefore reduce, and what increased enterprise uses the nitrogen cost.Design concept analysis design type by top form is as follows:

Embodiment two

Adopt the special-purpose transfiguration energy-efficient nitrogen generator of this SMT, just can address this problem, can add to be equipped with frequency conversion air compressor according to the different gears of the production status selectively unlocking nitrogen making machine of reality, select different frequencies according to different gears, 3 gears that the special-purpose transfiguration energy-efficient nitrogen generator of SMT is equipped with are respectively low, in, high 3 grades, as described in example, when opening 1 SMT nitrogen reflow soldering furnace, use low-grade; When opening 2, use middle-grade; When opening 3, use high-grade.With this energy consumption that reduces air compressor machine, make enterprise reach energy-conservation purpose.

The above only is preferred embodiment of the present utility model, so all equivalences of doing according to the described structure of the utility model patent claim, feature and principle change or modify, is included in the utility model patent claim.

Claims

1.SMT transfiguration energy-efficient nitrogen generator, it comprises support body (1), an adsorption tower (2), No. two adsorption towers (3), No. three adsorption towers (4), No. four adsorption towers (5), program control case (60), it is characterized in that: support body (1) is provided with an adsorption tower (2), No. two adsorption towers (3), No. three adsorption towers (4), No. four adsorption towers (5), program control case (60), an adsorption tower (2), No. two adsorption towers (3), No. three adsorption towers (4), No. four adsorption towers (5) are by a pipeline (100), No. two pipelines (200), No. three pipelines (300), No. four pipelines (400) mutual conduction, a pipeline (100) is provided with the manually control ball valve (11) of giving vent to anger No. one, give vent to anger for No. two and manually control ball valve (21), give vent to anger for No. three and manually control ball valve (51), give vent to anger for No. four and manually control ball valve (41), also be provided with total efflux angles seat valve (8) on the pipeline (100), efflux angles seat valve (9), No. two pipelines (200) are provided with and all press angle pedestal valve (10), No. four pipelines (400) are provided with flow inlet angle seat valve (7), emptying angle pedestal valve (6), ball valve (22) is manually controlled in an air inlet, ball valve (32) is manually controlled in No. two air inlets, ball valve (42) is manually controlled in No. three air inlets, ball valve (52) is manually controlled in No. four air inlets, No. three pipelines (300) are provided with total flow inlet angle seat valve (12), and No. four pipelines (400) are by No. three pipelines (300) and No. two pipelines (200) conducting.

2. SMT transfiguration energy-efficient nitrogen generator according to claim 1 is characterized in that: be provided with the PLC controller in the described program control case (60), nitrogen analyzer, magnetic valve.

3. SMT transfiguration energy-efficient nitrogen generator according to claim 1, it is characterized in that: a described adsorption tower (2), No. two adsorption towers (3), No. three adsorption towers (4), No. four adsorption towers (5) are respectively equipped with Pressure gauge (500).

4. SMT transfiguration energy-efficient nitrogen generator according to claim 1, it is characterized in that: a described adsorption tower (2), No. two adsorption towers (3) are at least more than two, and No. three adsorption towers (4), No. four adsorption towers (5) are at least more than two.