CN203375759U - Frequency conversion flooded water chiller set with electronic control function - Google Patents
Frequency conversion flooded water chiller set with electronic control function Download PDFInfo
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- CN203375759U CN203375759U CN201320330051.1U CN201320330051U CN203375759U CN 203375759 U CN203375759 U CN 203375759U CN 201320330051 U CN201320330051 U CN 201320330051U CN 203375759 U CN203375759 U CN 203375759U
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Abstract
The utility model relates to the field of air conditioners, in particular to a frequency conversion flooded water chiller set with an electronic control function. The frequency conversion flooded water chiller set comprises a refrigerating module and a control module connected with the refrigerating module. The refrigerating module comprises a frequency conversion screw-type compressor and a first frequency converter connected with the frequency conversion screw-type compressor. The first frequency converter controls the frequency conversion screw-type compressor to start and run at variable speed, and the control module is connected with the first frequency converter. The control module controls the refrigerating module, so that working efficiency is improved, manual operation can be performed, besides, automatic operation can be performed, and therefore the operation is more user-friendly. The frequency converter is adopted for controlling the compressor, and therefore starting currents are small, and a power grid is not impacted. Meanwhile, the frequency converter can control and change the rotation speed of the compressor and play a good role in energy adjusting to achieve an energy-saving effect.
Description
Technical field
The utility model relates to field of air conditioning, relates in particular to a kind of full-liquid type of the frequency conversion with automatically controlled function handpiece Water Chilling Units.
Background technology
In air conditioner cold water unit in the market or industrial cooling handpiece Water Chilling Units, be all generally to be equipped with screw type refrigerating compressor or the centrifugal refigerating compressor of two or many same structure patterns in a unit.But all there is following defect in above-mentioned two kinds of structures: screw type refrigerating compressor and centrifugal refigerating compressor, because being subject to its structural limitations, are fixed rotating speed, thereby cause screw type refrigerating compressor can only carry out limited energy adjustment; Although centrifugal refigerating compressor can be realized the electrodeless adjusting of energy in limited range, but realize by the method that increases resistance, economical not, and its energy conditioner structures complexity, requiring of control and driving is high, can not effectively change the running status of unit when changing load.In addition, general handpiece Water Chilling Units is all single manual control or automatic control operation pattern, can not meet the manual demand simultaneously operated with automatic control of controlling of some particular case.In addition, existing Normal squeezing machine starting current is very large, also very large to the impact of electrical network, thereby easily causes the damage of electrical network.
The utility model content
The purpose of this utility model is the defect that overcomes above-mentioned prior art, and a kind of good energy adjustment performance that possesses is provided, and has concurrently manually and automatic operation and the full-liquid type of the frequency conversion with automatically controlled function handpiece Water Chilling Units simple in structure.
This technical scheme of using its technical problem of novel solution to take is: a kind of full-liquid type of the frequency conversion with automatically controlled function handpiece Water Chilling Units, comprise refrigeration module and the control module be connected with described refrigeration module, described refrigeration module comprises frequency-variable screw type compressor and the first frequency converter be connected with described frequency-variable screw type compressor, the described frequency-variable screw type compressor of described the first Frequency Converter Control is started and variable-speed operation, and described control module is connected with described the first frequency converter.
Described refrigeration module also includes the first oil eliminator, the first full-liquid type heat exchanger, the first coolant drying filter, the first electric expansion valve, the first refrigerant magnetic valve, the first orifice plates and the second full-liquid type heat exchanger; Described frequency-variable screw type compressor is connected with described the second full-liquid type heat exchanger, described frequency-variable screw type compressor is connected with the first full-liquid type heat exchanger by the first oil eliminator, between described the second full-liquid type heat exchanger and the first full-liquid type heat exchanger, the first coolant drying filter and the first orifice plates are set, and described the first coolant drying filter and the first orifice plates are for being set up in parallel.
Described the first full-liquid type heat exchanger is connected with described the first coolant drying filter, and described the first coolant drying filter is connected with described the second full-liquid type heat exchanger by described the first electric expansion valve; Described the first full-liquid type heat exchanger is connected with the first orifice plates by the first refrigerant magnetic valve, and described the first orifice plates is connected with described the second full-liquid type heat exchanger.
Described refrigeration module also comprises the first return filter, the first oil return solenoid valve, the first ejecting scavenge return magnetic valve, the first injection oil return device and the first ejecting scavenge return filter; described the second full-liquid type heat exchanger is connected with described the first injection oil return device; described frequency-variable screw type compressor is connected with described the first injection oil return device, and described the first injection oil return device is connected with described the first oil eliminator by the first ejecting scavenge return magnetic valve; Described frequency-variable screw type compressor is connected with described the first oil return solenoid valve, and described the first oil return solenoid valve is connected with described the first return filter, and described the first return filter is connected with described the first oil eliminator.
Compared with prior art, the advantage the utlity model has is:
(1) control module is controlled refrigeration module, has improved operating efficiency, but not only manual operation but also can automatic operation simultaneously makes to operate more humane;
(2) adopted the Frequency Converter Control compressor, starting current is little, and to electrical network, without impact, the rotating speed of compressor can be controlled and change to frequency converter simultaneously, plays good energy adjustment effect, reaches energy-conservation effect;
(3) the full-liquid type heat exchanger has been installed, has not only been met the peak load of compressor but also met the minimum load of compressor, the range of operation that has enlarged unit reaches radiating effect better simultaneously.
The accompanying drawing explanation
Fig. 1 is the system construction drawing of a kind of full-liquid type of the frequency conversion with automatically controlled function of the utility model handpiece Water Chilling Units refrigeration module;
Fig. 2 is a kind of full-liquid type of the frequency conversion with automatically controlled function of the utility model handpiece Water Chilling Units control module circuit theory diagrams.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is illustrated.
A kind of full-liquid type of the frequency conversion with automatically controlled function handpiece Water Chilling Units, comprise refrigeration module and the control module be connected with described refrigeration module.As scheme institute 1 and show, described refrigeration module comprises frequency-variable screw type compressor 1 and the first frequency converter 2 be connected with described frequency-variable screw type compressor 1, described the first frequency converter 2 is controlled described frequency-variable screw type compressor 1 and is started and variable-speed operation; Also include in addition the first oil eliminator 3, the first full-liquid type heat exchanger 4, the first coolant drying filter 5, the first electric expansion valve 6, the first refrigerant magnetic valve 7, the first orifice plates 8, the second full-liquid type heat exchanger 9, the first return filter 10, the first oil return solenoid valve 11, the first ejecting scavenge return magnetic valve 12, the first injection oil return device 13 and the first ejecting scavenge return filter 14.Described frequency-variable screw type compressor 1 is connected with described the second full-liquid type heat exchanger 9, described frequency-variable screw type compressor 1 is connected with the first full-liquid type heat exchanger 4 by the first oil eliminator 3, the first coolant drying filter 5 and the first orifice plates 8 are set between described the second full-liquid type heat exchanger 9 and the first full-liquid type heat exchanger 4, and described the first coolant drying filter 5 and the first orifice plates 8 are for being set up in parallel.Wherein said the first full-liquid type heat exchanger 4 is connected with described the first coolant drying filter 5, and described the first coolant drying filter 5 is connected with described the second full-liquid type heat exchanger 9 by described the first electric expansion valve 6, forms throttling arrangement.Described throttling arrangement can be many groups, and it can regulate automatically according to the variation (as the temperature variations of chilled water outlet) of air conditioner load the flow of cold-producing medium.Described the first full-liquid type heat exchanger 4 is connected with the first orifice plates 8 by the first refrigerant magnetic valve 7, and described the first orifice plates 8 is connected with described the second full-liquid type heat exchanger 9.Described the second full-liquid type heat exchanger 9 is connected with described the first injection oil return device 13, described frequency-variable screw type compressor 1 is connected with described the first injection oil return device 13, and described the first injection oil return device 13 is connected with described the first oil eliminator 3 by the first ejecting scavenge return magnetic valve 12.Described frequency-variable screw type compressor 1 is connected with described the first oil return solenoid valve 11, and described the first oil return solenoid valve 11 is connected with described the first return filter 10, and described the first return filter 10 is connected with described the first oil eliminator 3.
Described control module as shown in Figure 2, wherein, K1-K3 is respectively refrigerating water pump, coolant pump and cooling tower, OR1 is the compressor heat relay, FR2-FR4 is respectively the refrigerating water pump electrothermal relay, coolant pump electrothermal relay and cooling tower electrothermal relay, HP1 is high-pressure switch, LP1 low pressure switch, protection in the IT1 compressor, BFS chilled water flow switch, LFS cooling water flow switch, V15 motor solenoid fuel injection valve, solenoid fuel injection valve in the middle of V16, the KG emergency stop switch, CH1 crankcase oils heater, V11-V13 is respectively 25%, 50%, 75% holds the tune magnetic valve, the protection of PRP1 anti-phase, the FU0-3 fuse, FR1 overload of compressor one, OR1 overload of compressor 2, the COM1 screw type refrigerating compressor, C1 compressor contactor one, D1 compressor contactor two.
During the work of the utility model handpiece Water Chilling Units, at first start frequency-variable screw type compressor 1, and realize soft start by the first frequency converter 2, simultaneously according to the air conditioner load situation, the fluid drive operation.Described frequency-variable screw type refrigerating compressor 1 is equivalent to evaporimeter by described the second full-liquid type heat exchanger 9() in gaseous refrigerant after heat absorption evaporation suck and compressed, in compression process, lubricating oil in frequency-variable screw type refrigerating compressor 1 can merge in gaseous refrigerant, after compression, being drained in described the first oil eliminator 3 is gaseous refrigerant and oil mixture, through the first oil eliminator 3, separate, liquid lubricating oil is got back in compressor through the first return filter 10 and the first oil return solenoid valve 11, gaseous refrigerant after separation enters the first full-liquid type heat exchanger 4(and is equivalent to condenser) in, the gaseous state cryogen of the HTHP in described the first full-liquid type heat exchanger 4 condenses into liquid refrigerant after by water quench, liquid refrigerant in the first full-liquid type heat exchanger 4 is by (containing the first coolant drying filter 5 after the combined type throttling arrangement, the first electric expansion valve 6, the first refrigerant magnetic valve 7, the first orifice plates 8) enter again described the second full-liquid type heat exchanger 9 after reducing pressure by regulating flow, when the lubricating oil do not separated fully enters the second full-liquid type heat exchanger 9 together with liquid refrigerants, due to its density and liquid refrigerants inconsistent, and be insoluble to again liquid refrigerants, just there will be oil reservoir, this lubricating oil (contains the first ejecting scavenge return magnetic valve 12 through the combined type induction apparatus again, the first injection oil return device 13 and the first ejecting scavenge return filter 14) get back in compressor, after the liquid refrigerant that enters the second full-liquid type heat exchanger absorbs the heat of chilled water, become again gaseous refrigerant, gaseous refrigerant cooled compressor again sucks, realize kind of refrigeration cycle.
When frequency-variable screw type refrigerating compressor 1 approaches or reaches while operating at full capacity, the centrifugal refigerating compressor in another refrigeration module starts, and realize soft start by frequency converter, the kind of refrigeration cycle process is identical with the kind of refrigeration cycle of described screw type refrigerating compressor, now, screw type refrigerating compressor reduces running speed automatically, adapts to the variation of air conditioner load.When air conditioner load reduces, when the screw type refrigerating compressor rotating speed is down to 20% left and right of rated speed, automatically stop centrifugal refigerating compressor, by screw type refrigerating compressor independence variable-speed operation.
As described above, it is only preferred embodiment of the present utility model, when not limiting the scope that the utility model is implemented with this, the simple equivalence of generally doing according to the utility model claim and utility model description changes and modifies, and all still belongs in the scope that the utility model patent contains.
Claims (4)
1. the full-liquid type of the frequency conversion with an automatically controlled function handpiece Water Chilling Units, comprise refrigeration module and the control module be connected with described refrigeration module, it is characterized in that, described refrigeration module comprises frequency-variable screw type compressor (1) and the first frequency converter (2) be connected with described frequency-variable screw type compressor (1), described the first frequency converter (2) is controlled described frequency-variable screw type compressor (1) and is started and variable-speed operation, and described control module is connected with described the first frequency converter (2).
2. a kind of full-liquid type of the frequency conversion with automatically controlled function handpiece Water Chilling Units as claimed in claim 1, it is characterized in that, also include the first oil eliminator (3), the first full-liquid type heat exchanger (4), the first coolant drying filter (5), the first electric expansion valve (6), the first refrigerant magnetic valve (7), the first orifice plates (8) and the second full-liquid type heat exchanger (9); Described frequency-variable screw type compressor (1) is connected with described the second full-liquid type heat exchanger (9), described frequency-variable screw type compressor (1) is connected with the first full-liquid type heat exchanger (4) by the first oil eliminator (3), between described the second full-liquid type heat exchanger (9) and the first full-liquid type heat exchanger (4), the first coolant drying filter (5) and the first orifice plates (8) are set, and described the first coolant drying filter (5) and the first orifice plates (8) are for being set up in parallel.
3. a kind of full-liquid type of the frequency conversion with automatically controlled function handpiece Water Chilling Units as claimed in claim 2, it is characterized in that, described the first full-liquid type heat exchanger (4) is connected with described the first coolant drying filter (5), and described the first coolant drying filter (5) is connected with described the second full-liquid type heat exchanger (9) by described the first electric expansion valve (6); Described the first full-liquid type heat exchanger (4) is connected with the first orifice plates (8) by the first refrigerant magnetic valve (7), and described the first orifice plates (8) is connected with described the second full-liquid type heat exchanger (9).
4. a kind of full-liquid type of the frequency conversion with automatically controlled function handpiece Water Chilling Units as claimed in claim 3, it is characterized in that, also comprise the first return filter (10), the first oil return solenoid valve (11), the first ejecting scavenge return magnetic valve (12), the first injection oil return device (13) and the first ejecting scavenge return filter (14), described the second full-liquid type heat exchanger (9) is connected with described the first injection oil return device (13), described frequency-variable screw type compressor (1) is connected with described the first injection oil return device (13), described the first injection oil return device (13) is connected with described the first oil eliminator (3) by the first ejecting scavenge return magnetic valve (12), described frequency-variable screw type compressor (1) is connected with described the first oil return solenoid valve (11), described the first oil return solenoid valve (11) is connected with described the first return filter (10), and described the first return filter (10) is connected with described the first oil eliminator (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320330051.1U CN203375759U (en) | 2013-06-08 | 2013-06-08 | Frequency conversion flooded water chiller set with electronic control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320330051.1U CN203375759U (en) | 2013-06-08 | 2013-06-08 | Frequency conversion flooded water chiller set with electronic control function |
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| Publication Number | Publication Date |
|---|---|
| CN203375759U true CN203375759U (en) | 2014-01-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201320330051.1U Expired - Fee Related CN203375759U (en) | 2013-06-08 | 2013-06-08 | Frequency conversion flooded water chiller set with electronic control function |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909769A (en) * | 2022-04-28 | 2022-08-16 | 南京亚派软件技术有限公司 | Refrigerating unit control method and device and refrigerating unit |
-
2013
- 2013-06-08 CN CN201320330051.1U patent/CN203375759U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114909769A (en) * | 2022-04-28 | 2022-08-16 | 南京亚派软件技术有限公司 | Refrigerating unit control method and device and refrigerating unit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 510000 K, Xinzhuang Industrial Park, Yonghe Road, Yonghe street, Guangdong, Guangzhou, Luogang District, China Patentee after: Guangdong Eurasia refrigeration equipment manufacturing Co., Ltd. Address before: 510000 K, Xinzhuang Industrial Park, Yonghe Road, Yonghe street, Guangdong, Guangzhou, Luogang District, China Patentee before: GUANGZHOU EURASIAN REFRIGERATION EQUIPMENT MANUFACTURING CO., LTD. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140101 Termination date: 20200608 |