CN204027106U - The emptier of central air conditioner system and central air conditioner system - Google Patents
The emptier of central air conditioner system and central air conditioner system Download PDFInfo
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- CN204027106U CN204027106U CN201420436742.4U CN201420436742U CN204027106U CN 204027106 U CN204027106 U CN 204027106U CN 201420436742 U CN201420436742 U CN 201420436742U CN 204027106 U CN204027106 U CN 204027106U
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- container
- air conditioner
- central air
- emptier
- conditioner system
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Abstract
The utility model provides a kind of emptier and central air conditioner system of central air conditioner system.The emptier of this central air conditioner system comprises: container, and container is connected with central air conditioner system; Vacuum extractor, vacuum extractor is connected with container; Cooling medium charging device, cooling medium charging device is connected with container; Checkout gear, checkout gear is connected the purity with refrigerant in the pressure in inspection instrument and container with container.According to the utility model, can accelerate vacuum pumping rate and the efficiency of vacuum extractor, simple and fast.
Description
Technical field
The utility model relates to emptier technical field, more specifically, relates to a kind of emptier and central air conditioner system of central air conditioner system.
Background technology
The reasons such as Large Central Air Conditioning System is because volume is large, and the stop valve of unit is young, the emptying operation before refrigerant tank note is the bottleneck operation that complete machine is produced always.As shown in Figure 1, in prior art, adopt vavuum pump 1 ' directly to take out method always, system vacuum degree is extracted into 100Pa left and right by 0.1MPa.Whole process is slow, is more extracted into the speed of finally finding time slower, length consuming time.Whole process is found time speed as shown in Figure 2, and evacuated time presents exponential type and increases, slow, the consuming time length of speed.
Utility model content
The utility model aims to provide a kind of emptier and central air conditioner system of central air conditioner system, and to solve, central air conditioner system speed of the prior art is slow, the problem of length consuming time.
For solving the problems of the technologies described above, according to an aspect of the present utility model, provide a kind of emptier of central air conditioner system, comprising: container, container is connected with central air conditioner system; Vacuum extractor, vacuum extractor is connected with container; Cooling medium charging device, cooling medium charging device is connected with container; Checkout gear, checkout gear is connected the purity with refrigerant in the pressure in inspection instrument and container with container.
Further, cooling medium charging device comprises: refrigerant tank, and refrigerant tank is connected with container; The assembly that boosts, the assembly that boosts is arranged between refrigerant tank and container with the pressure in rising container.
Further, the assembly that boosts comprises device for drying and filtering and the flash evaporation being connected in turn between refrigerant tank and container.
Further, cooling medium charging device also comprises flow control element, and flow control element is arranged on refrigerant tank and boosts between assembly.
Further, cooling medium charging device also comprises pressure-control valve, and pressure-control valve is arranged on and boosts between assembly and container.
Further, checkout gear comprises: pressure detecting element, and pressure detecting element is connected with container; Refrigerant purity analysis instrument, refrigerant purity analysis instrument is connected with container.
Further, the emptier of central air conditioner system also comprises the first stop valve that is arranged on container head and the 3rd stop valve that is arranged on container bottom, and the first stop valve is connected with refrigerant purity analysis instrument by same pipeline with the 3rd stop valve.
Further, between vacuum extractor and container, be provided with the second stop valve.
Further, the emptier of central air conditioner system also comprises injector, and injector is all communicated with checkout gear, flash evaporation and device for drying and filtering.
Further, the emptier of central air conditioner system also comprises: switch valve, switch valve is arranged on refrigerant tank and boosts between assembly.
Further, the emptier of central air conditioner system also comprises control module and warning device, and control module is connected with checkout gear, and warning device is connected with control module.
According on the other hand of the present utility model, a kind of central air conditioner system is provided, comprise emptier, emptier is the emptier of above-mentioned central air conditioner system.
Application the technical solution of the utility model, when system being vacuumized to processing, owing to being provided with cooling medium charging device and checkout gear in system, can reach predetermined vacuum level and be converted into the detection to the purity of refrigerant in container vacuumizing, only need simple perfusion refrigerant process can make fixed gas in air-conditioning system be discharged to the outside of air-conditioning system, save time fast, specifically, can first in container, pour into refrigerant, and then utilize vacuum extractor to vacuumize processing to container, pressure in recycling checkout gear inspection instrument and the purity of the refrigerant in container, in the utility model, utilizing pressure in checkout gear inspection instrument is operation setting in order to vacuumize, reason is, when the pressure in container is greater than certain preset value, the velocity ratio of vacuum extractor aspiration vacuum is very fast, therefore, when the pressure in checkout gear detects container is less than certain preset value, can utilize cooling medium charging device to pour into refrigerant in container, increase the pressure in container, the like, until checkout gear detects refrigerant purity in container while reaching another preset value, air in container is described, the content of moisture and on-condensible gas is enough low, reached the standard of the normal operation of air-conditioning system.Visible, in the utility model, adopt cooling medium charging device constantly to the method for container perfusion refrigerant, accelerate vacuum pumping rate and the efficiency of vacuum extractor, simple and fast.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 has schematically shown the front view of vacuum extractor of the central air conditioner system of prior art;
Fig. 2 has schematically shown time and the pressure dependence figure while utilizing the vacuum extractor of existing central air conditioner system to vacuumize;
Fig. 3 has schematically shown the front view of the emptier of central air conditioner system of the present utility model; And
Fig. 4 has schematically shown time and the pressure dependence figure while utilizing the vacuum extractor of central air conditioner system of the present utility model to vacuumize.
Description of reference numerals: 10, container; 20, vacuum extractor; 30, cooling medium charging device; 31, refrigerant tank; 32, the assembly that boosts; 321, device for drying and filtering; 322, flash evaporation; 33, flow control element; 34, pressure-control valve; 40, checkout gear; 41, pressure detecting element; 42, refrigerant purity analysis instrument; 50, the first stop valve; 60, injector; 70, check valve; 80, the 3rd stop valve; 90, the second stop valve; 100, switch valve.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
Shown in Fig. 3 and Fig. 4, according to embodiment of the present utility model, provide a kind of emptier of central air conditioner system.The emptier of this central air conditioner system comprises container 10, vacuum extractor 20, cooling medium charging device 30 and checkout gear 40.Wherein, container 10 is connected with central air conditioner system (not shown); Vacuum extractor 20 is connected with container 10, and container 10 is vacuumized to processing; Cooling medium charging device 30 is connected with container 10, for to the interior perfusion refrigerant of container 10; Checkout gear 40 is connected the purity with the pressure in inspection instrument 10 and container 10 interior refrigerants with container 10.According to embodiment of the present utility model, when system being vacuumized to processing, owing to being provided with cooling medium charging device 30 and checkout gear 40 in system, can reach predetermined vacuum level and be converted into the detection to the purity of container 10 interior refrigerants vacuumizing, only need simple perfusion refrigerant process can make fixed gas in air-conditioning system be discharged to the outside of air-conditioning system, save time fast, specifically, can first in container 10, pour into refrigerant, and then utilize 20 pairs of containers 10 of vacuum extractor to vacuumize processing, pressure in recycling checkout gear 40 inspection instruments 10 and the purity of the refrigerant in container 10, in the present embodiment, utilizing pressure in checkout gear 40 inspection instruments 10 is operation setting in order to vacuumize, reason is, when the pressure in container 10 is greater than certain preset value, the velocity ratio of vacuum extractor 20 aspiration vacuum is very fast, therefore, when the pressure in checkout gear 40 detects container 10 is less than certain preset value, can utilize cooling medium charging device 30 to pour into refrigerant in container 10, increase the pressure in container 10, the like, until checkout gear 40 detects refrigerant purity in container 10 while reaching another preset value, the interior air of container 10 is described, the content of moisture and on-condensible gas is enough low, reached the standard of the normal operation of air-conditioning system.Visible, in the present embodiment, adopt cooling medium charging device constantly to the method for container perfusion refrigerant, accelerate vacuum pumping rate and the efficiency of vacuum extractor 20, simple and fast.
According to embodiment of the present utility model, cooling medium charging device 30 comprises refrigerant tank 31 and the assembly 32 that boosts.Wherein refrigerant tank 31 is connected with container 10, for pouring into refrigerants to container 10; The assembly 32 that boosts is arranged between refrigerant tank 31 and container 10 so that the pressure rising in container 10 is convenient to accelerate the speed that 20 pairs of containers 10 of vacuum extractor vacuumize processing.
Preferably, the assembly 32 that boosts comprises device for drying and filtering 321 and the flash evaporation 322 being connected in turn between refrigerant tank 31 and container 10, is convenient to liquid refrigerants heating to become gaseous coolant, and the pressure in container 10 is raise rapidly, and simple in structure, the rate of rise is fast.
Preferably, cooling medium charging device 30 also comprises flow control element 33, and flow control element 33 is arranged on refrigerant tank 31 and boosts between assembly 32, is convenient to regulate entering the amount of the refrigerant in container 10, improves stability and the controllability of system.
In order further to control exactly the interior pressure size of container 10, the cooling medium charging device 30 of the present embodiment also comprises pressure-control valve 34, this pressure-control valve 34 is arranged on and boosts between assembly 32 and container 10, by the detection effect of checkout gear 40, can control entering the amount of the gaseous coolant in container 10, and then the pressure in container 10 is controlled, further improved the security of the emptier of whole central air conditioner system.
Refer again to shown in Fig. 3, checkout gear 40 comprises pressure detecting element 41 and refrigerant purity analysis instrument 42, and pressure detecting element 41 is connected with container 10 with the interior pressure of inspection instrument 10; Refrigerant purity analysis instrument 42 is connected the purity with the refrigerant in inspection instrument 10 with container 10, simple in structure.Preferably, pressure detecting element 41 is pressure sensor.
In the present embodiment, the emptier of central air conditioner system also comprises that the 3rd stop valve 80, the first stop valves 50 that are arranged on first stop valve 50 on container 10 tops and are arranged on container 10 bottoms are connected with refrigerant purity analysis instrument 42 by same pipeline with the 3rd stop valve 80.During work, the first stop valve 50 and the 3rd stop valve 80 are all in open mode, now, the fluid at container 10 bottoms and top enters in refrigerant purity analysis instrument 42 through same pipeline, can improve the accuracy of detection of refrigerant purity analysis instrument 42, similarly, in order to guarantee the accuracy of detection of pressure detecting element 41, the pressure that pressure detecting element 41 detects also has the pressure of electing as in above-mentioned pipeline.When refrigerant purity analysis instrument 42 quits work, only need to close the first stop valve 50 and the 3rd stop valve 80 can prevent that refrigerant from flowing in refrigerant purity analysis instrument 42 simultaneously.
For the ease of operation and control, between the vacuum extractor 20 in the present embodiment and container 10, be provided with the second stop valve 90, prevent from stopping under the state that vacuumizes, container 10 inner fluids flow in vacuum extractor 20.Preferably, the vacuum extractor 20 in the present embodiment is vavuum pump, simple in structure, convenient operation.
Preferably, the emptier of central air conditioner system also comprises injector 60, this injector 60 is all communicated with checkout gear 40, flash evaporation 322 and device for drying and filtering 321, can make the refrigerant in the refrigerant purity analysis instrument 42 of checkout gear 40 be back in system, guarantee accuracy that refrigerant is analyzed and the recoverable of refrigerant.
Preferably; in the emptier of the central air conditioner system of the present embodiment, also comprise the check valve 70 being arranged on container 10; when the interior pressure of this container 10 is excessive, the setting of check valve 70 can be protected container 10, improves the security of the emptier of central air conditioner system of the present utility model.
In the present embodiment, the emptier of central air conditioner system also comprises switch valve 100 and control module (not shown), wherein switch valve 100 is arranged on refrigerant tank 31 and boosts between assembly 32, when when to container 10 perfusion refrigerant, by the effect of switch valve 100, can cut off the pipeline boosting between assembly 32 and refrigerant tank 31 is disconnected.Preferably, the switch valve in the present embodiment 100 is magnetic valve.
Preferably, the emptier of central air conditioner system also comprises control module and warning device, control module is connected with checkout gear 40, each components and parts of the emptier of the signal pair centre air-conditioning system detecting according to checkout gear are controlled, this control module can time PLC controller or logic circuit controller, warning device is connected with control module, when the emptier of central air conditioner system reaches required vacuum requirement, warning device can send alarm signal, by the effect of warning device, can remind staff to carry out next step operation, being convenient to realize automation vacuumizes.
According to another embodiment of the present utility model, a kind of central air conditioner system is provided, comprise emptier, emptier is the emptier of above-mentioned central air conditioner system.
According to an embodiment more of the present utility model, a kind of control method of emptier of central air conditioner system is provided, in the present embodiment is the emptier of above-mentioned central air conditioner system.The control method of the emptier of the central air conditioner system in the present embodiment comprises: initially pour into refrigerant step: utilize cooling medium charging device 30 to container 10 perfusion refrigerants; Initially vacuumize step: utilize 20 pairs of containers 10 of vacuum extractor to vacuumize; Detecting step: utilize the refrigerant purity in checkout gear 40 inspection instruments 10, if the refrigerant purity in container 10 reaches the first preset value in the given time, stop vacuumizing; Determining step: if refrigerant purity is less than the first preset value, the relatively pressure in container 10 and the size of the second preset value, if the pressure in container 10 is more than or equal to the second preset value, open vacuum extractor 20, container 10 is vacuumized, reach the first preset value to the purity of the refrigerant in container 10; If the pressure in container 10 is less than the second preset value, close vacuum extractor 20, and open cooling medium charging device 30, to container 10 perfusion refrigerant to the pressure in container 10, be more than or equal to the second preset value, open afterwards vacuum extractor 20, the purity that container 10 is evacuated to the refrigerant in container 10 reaches the first preset value.According to the method for the present embodiment, can make the pressure in container 10 remain on the state of being convenient to vacuumize, by the change detected vacuumizing, be the detection of refrigerant purity, greatly saved the time that central air-conditioning is vacuumized, accelerate vacuum pumping rate and the efficiency of vacuum extractor.
In tentatively pouring into the process of refrigerant step, open magnetic valve and pressure-control valve 34, now the refrigerant in refrigerant tank 31 flow in device for drying and filtering 321 and flash evaporation 322, drying flow in container 10 after filtering evaporation, pressure in pressure sensor detects container 10 reaches the 3rd preset value, for example during 0.1MPa, just can initially vacuumize step.
While initially vacuumizing step, only need to open the second stop valve 90, make vacuum extractor 20 work carry out vacuum pumping to container 10.
In the process that container 10 is initially vacuumized, open the first stop valve 50 and the 3rd stop valve 80 simultaneously, make the fluid in container 10 enter into refrigerant purity analysis instrument 42, when the purity that the refrigerant in container 10 detected in the given time when refrigerant purity analysis instrument 42 reaches the first preset value, illustrate that the vacuum in container 10 has reached requirement, close the first stop valve 50, the second stop valve 90 and the 3rd stop valve 80, refrigerant purity analysis instrument 42 and vacuum extractor 20 are quit work, now, central air conditioner system can enter into normal operating conditions.
If in Preset Time, refrigerant in container 10 does not reach the first preset value, for example 0.1%, the relatively pressure in container 10 and the size of the second preset value, for example 0.01MPa, if the pressure in container 10 is more than or equal to the second preset value, opens vacuum extractor 20, container 10 is vacuumized, reach the first preset value to the purity of the refrigerant in container 10; If the pressure in container 10 is less than the second preset value, close vacuum extractor 20, and open cooling medium charging device 30, to container 10 perfusion refrigerant to the pressure in container 10, be more than or equal to the second preset value, open afterwards vacuum extractor 20, the purity that container 10 is evacuated to the refrigerant in container 10 reaches the first preset value.
It should be noted that, the first preset value in the present embodiment, the second preset value, the 3rd preset value and the scheduled time all can and need to be set according to the actual service condition of central air-conditioning.
Shown in Figure 4, according to embodiment of the present utility model, the refrigerant degree of purity that only needs perfusion more than repeating, three left and right refrigerant purity analysis instrument 42 of evacuation process to detect in pressure vessel (can be set as required) and feed back signal of telecommunication shut electromagnetic valve in 0.1% left and right, and the stop valve being connected between central air conditioner system and evacuator etc. is closed, evacuation system disconnects.
In the present embodiment, the refrigerant that different air-conditionings are used is different, part the lower refrigerant of 20 ° of left and right saturation pressures of room temperature due to and air-conditioning system between pressure reduction lower, in perfusion refrigerant process in order to guarantee that injection effect can increase refrigerant tank note machine, also the exhaust outlet of vavuum pump can be connected with refrigerant tank, the compression cooled coal gas that utilization is found time improves the refrigerant pressure in refrigerant tank, with the exhaust outlet of this way vavuum pump, pressure limiting valve must be set, guarantee that pressure at expulsion is less than below the design pressure of refrigerant tank.
The utility model utilization few feature of pressure time from high pressure is drawn into of finding time, the target of finding time is decided to be 0.01MPa, pressure sensor is set two threshold values, the front magnetic valve of finding time for the first time is often opened, when pressure sensor detects container pressure and is 0.1MPa, pressure-control valve cuts out, vavuum pump starts, when reaching 0.01MPa, force value stops finding time, now refrigerant purity reaches 90%, now system is opened battery valve and is filled with coolant system pressure and reaches 0.1MPa, pressure sensor by electrical signal transfer to pressure-control valve, pressure-control valve cuts out, vavuum pump starts, again be extracted into 0.01MPa, refrigerant purity is now 99%, repeat the above process refrigerant of finding time for the third time, now closed electromagnetic valve, completes whole evacuation procedure, and the refrigerant purity in container reaches 99.9%.Visible, the utility model is constant at vavuum pump, and the stop valve of finding time does not change the emptying time with a central air conditioner system in big or small situation and reduces more than 50%.Whole process has been saved employee and directly in evacuation process, has constantly been checked manometric situation, utilize this system only need to wait until that system completes three times and finds time, system is provided with warning device, completes the rear warning employee that finds time and directly removes system, can be through next step operation of row.Whole pilot process of finding time does not need employee's special concern, has saved the manpower of pilot process.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (12)
1. an emptier for central air conditioner system, is characterized in that, comprising:
Container (10), described container (10) is connected with described central air conditioner system;
Vacuum extractor (20), described vacuum extractor (20) is connected with described container (10);
Cooling medium charging device (30), described cooling medium charging device (30) is connected with described container (10);
Checkout gear (40), described checkout gear (40) is connected to detect the interior pressure of described container (10) and the purity of the interior refrigerant of described container (10) with described container (10).
2. the emptier of central air conditioner system according to claim 1, is characterized in that, described cooling medium charging device (30) comprising:
Refrigerant tank (31), described refrigerant tank (31) is connected with described container (10);
The assembly (32) that boosts, described in the assembly (32) that boosts be arranged between described refrigerant tank (31) and described container (10) with the pressure in the described container (10) that raises.
3. the emptier of central air conditioner system according to claim 2, it is characterized in that, described in the assembly (32) that boosts comprise device for drying and filtering (321) and the flash evaporation (322) being connected in turn between described refrigerant tank (31) and described container (10).
4. the emptier of central air conditioner system according to claim 2, it is characterized in that, described cooling medium charging device (30) also comprises flow control element (33), described flow control element (33) be arranged on described refrigerant tank (31) and described in boost between assembly (32).
5. the emptier of central air conditioner system according to claim 2, it is characterized in that, described cooling medium charging device (30) also comprises pressure-control valve (34), boosts between assembly (32) and described container (10) described in described pressure-control valve (34) is arranged on.
6. the emptier of central air conditioner system according to claim 1, is characterized in that, described checkout gear (40) comprising:
Pressure detecting element (41), described pressure detecting element (41) is connected with described container (10);
Refrigerant purity analysis instrument (42), described refrigerant purity analysis instrument (42) is connected with described container (10).
7. the emptier of central air conditioner system according to claim 6, it is characterized in that, the emptier of described central air conditioner system also comprises the 3rd stop valve (80) that is arranged on first stop valve (50) on described container (10) top and is arranged on described container (10) bottom, and described the first stop valve (50) is connected with described refrigerant purity analysis instrument (42) by same pipeline with described the 3rd stop valve (80).
8. the emptier of central air conditioner system according to claim 1, is characterized in that, between described vacuum extractor (20) and described container (10), is provided with the second stop valve (90).
9. the emptier of central air conditioner system according to claim 3, it is characterized in that, the emptier of described central air conditioner system also comprises injector (60), and described injector (60) is all communicated with described checkout gear (40), described flash evaporation (322) and described device for drying and filtering (321).
10. the emptier of central air conditioner system according to claim 2, is characterized in that, the emptier of described central air conditioner system also comprises:
Switch valve (100), described switch valve (100) be arranged on described refrigerant tank (31) and described in boost between assembly (32).
The emptier of 11. central air conditioner systems according to claim 1, it is characterized in that, the emptier of described central air conditioner system also comprises control module and warning device, and described control module is connected with described checkout gear (40), and described warning device is connected with described control module.
12. 1 kinds of central air conditioner systems, comprise emptier, it is characterized in that, described emptier is the emptier of the central air conditioner system described in any one in claim 1 to 11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436742.4U CN204027106U (en) | 2014-08-04 | 2014-08-04 | The emptier of central air conditioner system and central air conditioner system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420436742.4U CN204027106U (en) | 2014-08-04 | 2014-08-04 | The emptier of central air conditioner system and central air conditioner system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204027106U true CN204027106U (en) | 2014-12-17 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420436742.4U Withdrawn - After Issue CN204027106U (en) | 2014-08-04 | 2014-08-04 | The emptier of central air conditioner system and central air conditioner system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204027106U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154690A (en) * | 2014-08-04 | 2014-11-19 | 珠海格力电器股份有限公司 | Emptying device of central air conditioning system, control method of emptying device and central air conditioning system |
| CN106226479A (en) * | 2016-08-18 | 2016-12-14 | 珠海格力电器股份有限公司 | The detection method of a kind of refrigerant quality, device and refrigeration system |
| CN110793245A (en) * | 2019-10-31 | 2020-02-14 | 合肥华凌股份有限公司 | Vacuumizing method, refrigerant filling method and refrigerator |
-
2014
- 2014-08-04 CN CN201420436742.4U patent/CN204027106U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104154690A (en) * | 2014-08-04 | 2014-11-19 | 珠海格力电器股份有限公司 | Emptying device of central air conditioning system, control method of emptying device and central air conditioning system |
| CN104154690B (en) * | 2014-08-04 | 2016-10-05 | 珠海格力电器股份有限公司 | The emptier of central air conditioner system and control method, central air conditioner system |
| CN106226479A (en) * | 2016-08-18 | 2016-12-14 | 珠海格力电器股份有限公司 | The detection method of a kind of refrigerant quality, device and refrigeration system |
| CN110793245A (en) * | 2019-10-31 | 2020-02-14 | 合肥华凌股份有限公司 | Vacuumizing method, refrigerant filling method and refrigerator |
| CN110793245B (en) * | 2019-10-31 | 2021-08-10 | 合肥华凌股份有限公司 | Vacuumizing method, refrigerant filling method and refrigerator |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20141217 Effective date of abandoning: 20161005 |
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| C25 | Abandonment of patent right or utility model to avoid double patenting |