CN202210674U - DC (Direct Current) rectifier power supply protective device for EDI (Electronic Data Interchange) of water treatment system - Google Patents
DC (Direct Current) rectifier power supply protective device for EDI (Electronic Data Interchange) of water treatment system Download PDFInfo
- Publication number
- CN202210674U CN202210674U CN2011203641273U CN201120364127U CN202210674U CN 202210674 U CN202210674 U CN 202210674U CN 2011203641273 U CN2011203641273 U CN 2011203641273U CN 201120364127 U CN201120364127 U CN 201120364127U CN 202210674 U CN202210674 U CN 202210674U
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- Prior art keywords
- power supply
- rectifier power
- edi
- protective device
- module
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Abstract
The utility model relates to a power supply protective device, in particular to a DC (Direct Current) rectifier power supply protective device for EDI (Electronic Data Interchange) of a water treatment system. The DC rectifier power supply protective device comprises a DC rectifier power supply module, wherein the input of the DC rectifier power supply module is connected with two-phase or three-phase voltage by an air switch and is also connected with the air switch by a power supply control contactor; and the output of the DC rectifier power supply module is connected with a fast-acting fuse. According to the power supply protective device, when the failure of a main power supply and a DC rectifier power supply of an EDI system occurs, an EDI module and other rectifier power supplies are not damaged; especially, the DC rectifier power supply protective device can effectively protect the EDI module and other rectifier power supplies when a grounding lightning-protection device of a main circuit in a factory is not arranged in place, and electric appliance components in the DC rectifier power supply can not adopt the lightning-protection protective measure for inhibiting surging.
Description
Technical field
The utility model relates to a kind of apparatus for protecting power supply, a kind of specifically water treatment system EDI dc rectification power protective device.
Background technology
At present; In water treatment system, can adopt the equipment of EDI electrification deionization system usually as deep desalting; Its principle is exactly the zwitterion that utilizes in the mixture iron exchange resin adsorbed water; These ions that are adsorbed under the effect of direct voltage, are removed through the zwitterion film respectively again simultaneously.Towards the anionic membrane of positive pole and towards constituting dense hydroecium between the cationic membrane of negative pole; Towards the anionic membrane of negative pole and between the cationic membrane of positive pole, form freshwater room.Freshwater room and dense hydroecium sandwich yin, yang ion exchange resin; When water when freshwater room and dense hydroecium flow through; Ion exchange resin has just adsorbed the ion in the water, and the electrode at EDI module two ends provides horizontal DC electric field, and DC electric field drives the adsorbed ion of ion exchange resin and passes ionic membrane; The ion concentration that has consequently reduced water in the freshwater room with increased the ion concentration of water in the dense hydroecium, thereby make that the purity of water is increasingly high in the freshwater room.The EDI module is combined parallel operation by many such elementary cells.
According to the power supply of EDI module needs, general employing all is integrated power supply at present, adopts six metal screens worn-out, and the totally-enclosed encapsulating structure has characteristics such as safe and reliable, that Electro Magnetic Compatibility is good.Dc rectification power generally adopts the design of input two-phase or three-phase 380V voltage, is designed with in the main circuit that the input sky is opened, dc rectification power module, output sky are opened, output voltage meter and ammeter; The control circuit aspect generally all adopts the magnetic flow switch to control the start and stop of rectifier power source, when rectifier power source fault (overcurrent), can stop this power module by the output abnormality signal.But the problem that circuit causes can't be avoided and protect for sporadic fault of rectifier power source module and thunderbolt; Because it is still closed under the situation that enables externally to have broken off of control start and stop rectifier power source;, general supply can cause the damage of rectifier power source in case powering on suddenly, and can be because these sporadic faults cause EDI module or other rectifier power sources significant trouble and damage to occur.
The utility model content
The utility model technical problem to be solved is; Overcome the shortcoming of prior art; A kind of water treatment system EDI dc rectification power protective device is provided, when EDI module and dc rectification power module failure, can plays a protective role effectively, avoid causing bigger irremediable loss.
The technical scheme that the utility model solves above technical problem is:
Water treatment system EDI dc rectification power protective device; Comprise the dc rectification power module; The input of dc rectification power module connects two-phase or three-phase voltage through air switch; The input of dc rectification power module connects air switch through the power supply control contactor, and the output of dc rectification power module connects the fast speed fuse.
The technical scheme that the utility model further limits is:
Aforesaid water treatment system EDI dc rectification power protective device, the output of dc rectification power module is connected to output voltage meter and output current table.
The beneficial effect of the utility model is: the utility model can not damage EDI module and other rectifier power sources when total power supply of EDI system and dc rectification power fault; Especially not in place at factory's way circuit ground connection lightning protection device; And the inner electric elements of the dc rectification power that adopts can effectively be protected EDI module and other rectifier power sources when not considering to take to suppress the lightning protection measure of surge.The utility model can play a protective role when EDI module and dc rectification power module failure effectively, avoids causing bigger irremediable loss, and is simultaneously simple to operate effective.
Description of drawings
Fig. 1 is that the circuit of the utility model connects sketch map.
Embodiment
Embodiment 1
Present embodiment is a kind of water treatment system EDI dc rectification power protective device; Circuit connects as shown in Figure 1; Comprise the dc rectification power module; The input of dc rectification power module meets three-phase voltage U 1, V1 and W1 through air switch Q1, and the input of dc rectification power module meets air switch Q1 through power supply control contactor KM1, and the output of dc rectification power module meets fast speed fuse F S1.The output of dc rectification power module is connected to output voltage meter and output current table.
The utility model adds the general supply control contactor in the governor circuit of former rectifier power source, and direct current output place sky is opened and used fast acting fuse instead.The utility model main circuit is: input air switch Q1, power supply control contactor KM1, dc rectification power module, output fast acting fuse FS1, output voltage meter and ammeter; And the service conditions that the general supply control contactor has system to possess is controlled; Even like this because the rectifier power source that reason such as thunderbolt causes enables failure problems also can be avoided, the fast acting fuse FS1 of output is overheated or can avoid bigger problem generation by quick fuse when short circuit occurring in the EDI module.
The control flow of the utility model is:
Start: prime supplies water, and EDI system Inlet and outlet water flow is detected in the back, whether pressure is normal, the 2 seconds startup rectifier power source control contactor KM1 that normally then delay time, and the 2 seconds startup rectifier power source enable switch of delaying time again start rectifier power source and normally move; Undesiredly then shut down and send sound and light alarm;
Shutdown: stop the rectifier power source enable switch, make rectifier power source break off direct current output, delaying time stops the general supply that rectifier power source control contactor KM1 breaks off rectifier power source again after 2 seconds, stop prime at last and supply water.
Even the rectifier power source fault still can be come open circuit through the general supply control contactor like this; And the fast acting fuse FS1 of output can be when the EDI module failure quick fuse, reach the purpose of protection.
The utility model can play a protective role when EDI module and dc rectification power module failure effectively, avoids causing bigger irremediable loss, and is simultaneously simple to operate effective.
Except that the foregoing description, the utility model can also have other execution modes.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection range of the utility model requirement.
Claims (2)
1. water treatment system EDI dc rectification power protective device; Comprise the dc rectification power module; The input of said dc rectification power module connects two-phase or three-phase voltage through air switch; It is characterized in that: the input of said dc rectification power module connects said air switch through the power supply control contactor, and the output of said dc rectification power module connects the fast speed fuse.
2. water treatment system EDI dc rectification power protective device as claimed in claim 1 is characterized in that: the output of said dc rectification power module is connected to output voltage meter and output current table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203641273U CN202210674U (en) | 2011-09-27 | 2011-09-27 | DC (Direct Current) rectifier power supply protective device for EDI (Electronic Data Interchange) of water treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203641273U CN202210674U (en) | 2011-09-27 | 2011-09-27 | DC (Direct Current) rectifier power supply protective device for EDI (Electronic Data Interchange) of water treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202210674U true CN202210674U (en) | 2012-05-02 |
Family
ID=45990217
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203641273U Expired - Fee Related CN202210674U (en) | 2011-09-27 | 2011-09-27 | DC (Direct Current) rectifier power supply protective device for EDI (Electronic Data Interchange) of water treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202210674U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113299143A (en) * | 2021-06-07 | 2021-08-24 | 贵州水利水电职业技术学院 | Intelligent maintenance electrician training device |
-
2011
- 2011-09-27 CN CN2011203641273U patent/CN202210674U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113299143A (en) * | 2021-06-07 | 2021-08-24 | 贵州水利水电职业技术学院 | Intelligent maintenance electrician training device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120502 Termination date: 20140927 |
|
| EXPY | Termination of patent right or utility model |