CN201330702Y - Vortex compressor for preventing liquid impact - Google Patents

Vortex compressor for preventing liquid impact Download PDF

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Publication number
CN201330702Y
CN201330702Y CNU2009200002783U CN200920000278U CN201330702Y CN 201330702 Y CN201330702 Y CN 201330702Y CN U2009200002783 U CNU2009200002783 U CN U2009200002783U CN 200920000278 U CN200920000278 U CN 200920000278U CN 201330702 Y CN201330702 Y CN 201330702Y
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CN
China
Prior art keywords
liquid
scroll compressor
compressor
level switch
heat tape
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
CNU2009200002783U
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Chinese (zh)
Inventor
张勇
单彩侠
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.)
Gree Electric Appliances Inc of Zhuhai
Original Assignee
Gree Electric Appliances Inc of Zhuhai
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
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Application filed by Gree Electric Appliances Inc of Zhuhai filed Critical Gree Electric Appliances Inc of Zhuhai
Priority to CNU2009200002783U priority Critical patent/CN201330702Y/en
Application granted granted Critical
Publication of CN201330702Y publication Critical patent/CN201330702Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Rotary Pumps (AREA)
  • Compressor (AREA)

Abstract

The utility model discloses a prevent scroll compressor of liquid impact is equipped with in this scroll compressor: the liquid level switch is arranged in the scroll compressor and used for detecting the liquid level position of the liquid refrigerant; and the electric heating belt is used for heating the liquid refrigerant in the scroll compressor in a controlled manner, wherein when the liquid level switch detects that the liquid level position of the liquid refrigerant exceeds a preset liquid level position, the scroll compressor is closed, and the electric heating belt is started to heat the liquid refrigerant. The utility model discloses can shorten liquid refrigerant's heat time, prevent liquid effectively and hit, protect the compressor, improve the compressor reliability.

Description

Prevent the scroll compressor of liquid hammer
Technical field
The utility model relates to compressor field, in particular to a kind of scroll compressor that prevents liquid hammer.
Background technique
When a large amount of liquid refrigerants is assembled in the scroll compressor bottom, to start shooting moment, liquid refrigerants enters compressor chamber, causes liquid hammer.At scroll compressor after sale in the fault, because of the rate of fault that liquid hammer causes high always.Liquid hammer gently then causes the wearing and tearing aggravation of scroll compressor Moving plate and the quiet dish of scroll compressor, damages easily, and scroll compressor power increases, and decreased performance finally makes compressor produce fault; Heavy then crunch that cause liquid refrigerants to produce makes scroll cracked, the fracture of scroll compressor cross slip ring, compressor can damage immediately.
At present more existing producers reach the purpose of refrigerant evaporation at the outside heat tape that increases of compressor, but grow (reaching more than 6 hours) its heating time, and the Consumer uses hardly, has therefore lost the meaning of its existence.
Therefore, be necessary to provide a kind of scroll compressor that prevents liquid hammer, to address the above problem.
The model utility content
The utility model aims to provide a kind of scroll compressor that prevents liquid hammer, shortens the heating time of liquid refrigerants, to prevent the generation of scroll compressor liquid hammer effectively.
For this reason, the utility model provides a kind of scroll compressor that prevents liquid hammer, is provided with in this scroll compressor: liquid-level switch, be arranged on scroll compressor inside, and detect the liquid level position of liquid refrigerants; And the heat tape of heating liquid refrigerants, heat tape heats the liquid refrigerants of scroll compressor inside controllably, wherein, when liquid-level switch surpasses the predetermined level position at the liquid level position that detects liquid refrigerants, close scroll compressor and start heat tape heating liquid refrigerants.
Wherein, the lower support upper position of the inwall of above-mentioned scroll compressor is provided with a plurality of hooks, and heat tape is installed on a plurality of hooks.
Wherein, above-mentioned liquid-level switch is installed on the lower support of scroll compressor.
Wherein, above-mentioned liquid-level switch is installed on the hook on the scroll compressor wall body.
Because heat tape is installed in scroll compressor inside, so shortened the heating time of liquid refrigerants, overcome long problem heating time of liquid refrigerants, and then reached and prevent the scroll compressor liquid hammer effectively, improved the effect of compressor reliability.
Except purpose described above, feature and advantage, the utility model also has other purpose, feature and advantage.Below with reference to figure, other purpose, feature and effect of the present utility model is described in further detail.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model.Among the figure:
Fig. 1 shows according to the whole assembled construction of the utility model embodiment's scroll compressor;
Fig. 2 shows the structure of the utility model embodiment's heat tape;
Fig. 3 shows the structure of the utility model embodiment's liquid-level switch; And
Fig. 4 shows the circuit diagram of the utility model liquid-level switch.
Embodiment
Below with reference to the accompanying drawings and in conjunction with the embodiments, describe the utility model in detail.
Fig. 1 shows the utility model embodiment's the whole assembled construction of scroll compressor; Fig. 2 shows the structure of the utility model embodiment's heat tape; Fig. 3 shows the structure of the utility model embodiment's liquid-level switch; Fig. 4 shows the circuit diagram of the utility model embodiment's liquid-level switch.
With reference to Fig. 1, Fig. 2 and Fig. 3, as can be seen, scroll compressor 100 has Moving plate 101, quiet dish 103, upper support 111, lower support 113, axle sleeve 120, wiring terminal 130, oil circuit 141, Oil Guide sheet 143, purification plant 145, liquid level position 147, stator 151, rotor 153, equilibrium block 160, bent axle 170, hook 180, heat tape 200 and liquid-level switch 300.With upper-part is prior art mostly, does not repeat them here, and describes heat tape 200 and liquid-level switch 300 below in detail.
Heat tape 200 can be buied from the market, or processes according to actual conditions, and its two ends are hanger type, has the sprung parts of being convenient to hang 220.Sprung parts 220 is positioned at heat tape 200 two ends, in the form of sheets, is fixed on heat tape 200 ends by screw or rivet.At compressor lower support 113 four hooks 180 of spot welding on the scroll compressor wall body of position on the upper side, the sprung parts 220 with heat tape 200 is enclosed within on the hook 180 then, and is subsequently that the screw or the rivet at parts 220 two ends is fastening during installation.Heat tape 200 has terminal 210, and terminal 210 are communicated with power supply by circuit.Heat tape 200 power are decided according to designing requirement, in the present embodiment, heat tape is applied on 3 the scroll compressor, power designs about 50w, can be in-30 degrees centigrade~200 degrees centigrade scopes proper functioning, put into after the water energising is heated to the water temperature balance, can bear AC1800V 5mA/ minute, not breakdown, insulation resistance is not less than 100M ohm when proper functioning, and leakage current is less than 0.1mA.Heat tape is connected liquid-level switch, whether liquid-level switch control heat tape works, and makes that the liquid refrigerants that accumulates in the scroll compressor bottom evaporates under the heating of heat tape under the abnormal conditions, thereby avoid liquid refrigerants to enter the compressor compresses chamber and cause fault, improve compressor reliability.
The liquid-level switch 300 of scroll compressor (being compressor) is used to open heat tape 200.The utility model embodiment's liquid-level switch 300 can be buied from the market, or processes according to actual conditions.The MQS-216SB02BAM-01 type liquid-level switch that the utility model adopts Huida Electromechanical (Huizhou) Co., Ltd. to produce, this liquid-level switch can be in-30 degrees centigrade~200 degrees centigrade scopes can proper functioning, withstand voltage greater than AC1500V 5mA/ minute, nothing punctures or dodges and iron, insulation resistance is not less than 100M ohm, and leakage current is less than 0.1mA.Liquid-level switch 300 positions can adopt spot welding or screw fixation method to be installed on the lower support 113, also can select to be fixed on the heat tape fixed hook 180, as long as liquid refrigerants can be controlled in the safety range.
As shown in Figure 4, liquid-level switch connects compressor 100 power supplys and heat tape 200 respectively.Liquid-level switch 300 disconnects during start, and compressor 100 power supplys and liquid-level switch 300 form and open circuit, and compressor 100 is not worked; When liquid level 147 is in home, liquid-level switch 300 closures, the power supply of compressor 100 and liquid-level switch 300 forms paths, and liquid-level switch 300 forms with heat tape 200 and opens circuit, the heat tape 200 compressor starts work of not working.
During air-conditioning system work, run into abnormal conditions,, also can gather liquid refrigerants in the compressor bottom as defrost, excess load running.When liquid refrigerants arrived dangerous liquid level position, liquid-level switch 300 was opened, and the air-conditioning system controller sends instruction, close compressor, and at this moment, liquid-level switch 300 forms path with heat tape 200, and heat tape 200 makes the liquid refrigerants evaporation; When liquid refrigerants dropped to the safety level position, liquid-level switch 300 disconnections were communicated with heat tape, are communicated with the power supply of compressor 100, and heat tape 200 quits work, and compressor starts again, proper functioning.
As can be seen from the above description, the utility model has been realized following technique effect:
Because heat tape is installed in scroll compressor inside, so shortened the heating time of liquid refrigerants, prevents that the effect of scroll compressor liquid hammer is better, practicability is stronger.Because liquid-level switch connects compressor power, compressor was not worked when liquid-level switch made start; When refrigerant arrived dangerous liquid level position, the air-conditioning system controller sent instruction, close compressor, because this moment, heat tape was communicated with liquid-level switch, the heat tape that is installed in the scroll compressor inner lower evaporates liquid refrigerants rapidly; When liquid refrigerants dropped to the safety level position, the liquid-level switch disconnection was communicated with heat tape, and heat tape quits work, compressor starts again, proper functioning, thus avoided liquid refrigerants to enter the compressor compresses chamber, improve compressor reliability, reduced fault after sale.In addition, this structure only when liquid level reaches dangerous liquid level position heat tape just can work, shortened the heating time of liquid refrigerants, more simple and practical.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within spirit of the present utility model and principle, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection domain of the present utility model.

Claims (4)

1. a scroll compressor that prevents liquid hammer is characterized in that, is provided with in the described scroll compressor:
Liquid-level switch is arranged on described scroll compressor inside, detects the liquid level position of liquid refrigerants; And
Heat the heat tape of described liquid refrigerants, described heat tape heats the liquid refrigerants of described scroll compressor inside controllably,
Wherein, when described liquid-level switch surpasses the predetermined level position at the liquid level position that detects described liquid refrigerants, close described scroll compressor and start described heat tape and heat described liquid refrigerants.
2. the scroll compressor that prevents liquid hammer according to claim 1 is characterized in that,
The lower support upper position of the inwall of described scroll compressor is provided with a plurality of hooks, and described heat tape is installed on described a plurality of hook.
3. the scroll compressor that prevents liquid hammer according to claim 1 is characterized in that,
Described liquid-level switch is installed on the lower support of described scroll compressor.
4. the scroll compressor that prevents liquid hammer according to claim 3 is characterized in that,
Described liquid-level switch is installed on the hook of described scroll compressor wall body.
CNU2009200002783U 2009-01-19 2009-01-19 Vortex compressor for preventing liquid impact Expired - Lifetime CN201330702Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2009200002783U CN201330702Y (en) 2009-01-19 2009-01-19 Vortex compressor for preventing liquid impact

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2009200002783U CN201330702Y (en) 2009-01-19 2009-01-19 Vortex compressor for preventing liquid impact

Publications (1)

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CN201330702Y true CN201330702Y (en) 2009-10-21

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102562597A (en) * 2012-01-13 2012-07-11 西安交通大学 Liquid impact prevention device for liquid injection cooling type single screw compressor
CN109113997A (en) * 2018-08-29 2019-01-01 珠海凌达压缩机有限公司 Compressor and vehicle-mounted air conditioning system
CN110332681A (en) * 2019-07-15 2019-10-15 珠海格力电器股份有限公司 Control method for preventing liquid-carrying start of compressor
CN110529981A (en) * 2019-09-16 2019-12-03 宁波奥克斯电气股份有限公司 A kind of method preventing compressor hydrops and air conditioner

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102562597A (en) * 2012-01-13 2012-07-11 西安交通大学 Liquid impact prevention device for liquid injection cooling type single screw compressor
CN102562597B (en) * 2012-01-13 2014-11-05 西安交通大学 Liquid impact prevention device for liquid injection cooling type single screw compressor
CN109113997A (en) * 2018-08-29 2019-01-01 珠海凌达压缩机有限公司 Compressor and vehicle-mounted air conditioning system
CN110332681A (en) * 2019-07-15 2019-10-15 珠海格力电器股份有限公司 Control method for preventing liquid-carrying start of compressor
CN110529981A (en) * 2019-09-16 2019-12-03 宁波奥克斯电气股份有限公司 A kind of method preventing compressor hydrops and air conditioner

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Granted publication date: 20091021