CN207831994U - A kind of accurate filling system of heat-pipe working medium - Google Patents
A kind of accurate filling system of heat-pipe working medium Download PDFInfo
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- CN207831994U CN207831994U CN201721754192.0U CN201721754192U CN207831994U CN 207831994 U CN207831994 U CN 207831994U CN 201721754192 U CN201721754192 U CN 201721754192U CN 207831994 U CN207831994 U CN 207831994U
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Abstract
The utility model discloses a kind of accurate filling systems of heat-pipe working medium, including component to be filled, vacuum unit, charging amount temperature and pressure measurement and control unit and working medium storage element, the vacuum unit passes through control valve I and members to be filled, the charging amount temperature and pressure measurement and control unit includes air reservoir and temperature, pressure collecting mechanism, the air reservoir both ends are connected to by valve body with component to be filled, working medium storage element respectively, and output is for calculating control charging amount after the temperature, pressure collecting mechanism connect with the air reservoir and acquires the pressure and temperature information in air reservoir；The utility model is realized by air reservoir combination temperature pressure acquisition mechanism is precisely controlled filling to the gas working medium of component to be filled, can be precisely controlled to different application warm area and liquid filled ratio gas working medium charging amount, and simple in structure, of low cost.
Description
Technical field
The utility model is to be related to a kind of filling system, is to be related to a kind of accurate filling system of heat-pipe working medium specifically, is belonged to
In refrigeration technology field, especially suitable in the middle low-temperature space experiment working medium (gas such as such as methane, ethane, R508B, CO2 and nitrogen
Body) different liquid filled ratios filling application.
Background technology
With the progress of the development and science and technology of society, in order to meet daily life and industrial circle such as aerospace aspect hair
The needs of exhibition, the research range of the researcher in China in middle low temperature field is more and more wider, and such as this is special for small-sized Cryo Refrigerator
Woods refrigeration machine, vascular refrigerator etc., middle low-temperature space high-efficiency heat transfer device pulsating heat pipe etc., before being tested to these devices
It is typically necessary and carries out the filling of refrigerant to it, filling working medium is all converted into the volume of liquid and heat pipe under condensation temperature
The ratio of volume is known as the liquid filled ratio of heat pipe, and the size of liquid filled ratio is to influence a key factor of adopting heat pipes for heat transfer performance, and make
The accuracy rate of cryogen filling has direct influence to the accuracy of experimental result.
Existing filling system is mostly the coolant injection system of field of air conditioning, is such as poured to the evaporator in air-conditioning system cold
Matchmaker, coolant injection device include mainly：Device for drying and filtering, two-way electromagnetic valve, electric expansion valve, indoor unit, gas-liquid separator
With pressure sensor etc..After wherein refrigerant enters device for drying and filtering by connecting tube, it is dried is filtered with magazine wherein, so
After can pass through electric expansion valve, two-way electromagnetic valve, indoor unit, gas-liquid separator and pressure sensing its, be converted into gaseous state from liquid,
Pressure reduction finally enters evaporator system.In the whole process, it needs that street will be filled when coolant injection device is filled
Head is connect with the input duct of evaporator, when pressure sensor, which checks the pressure in evaporator, reaches setting value, solenoid valve
Door is filled automatically, and then after evaporimeter internal pressure reaches set upper limit value, solenoid valve can close again, complete filling
Experiment.Although this filling method is simple, have the shortcomings that it is several apparent, first, not having before being filled to evaporator
It is vacuumized, residual gas in evaporator etc. can cause inestimable error to subsequent experiment, second is that can cause
Situations such as evaporating its corrosion leads to the leakage of refrigerant.
Also Chinese patent 201410483994.7 discloses a kind of coolant injection system and method, including：Vacuumize mould
Block for being vacuumized to component to be filled, and judges whether the vacuum degree in the component to be filled described in it reaches requirement, if
It is that will then generate instruction to filling module, is then filled to component to be filled；Metering module, including flow sensor and stream
Gauge, the practical charging amount for measuring the refrigerant in the practical filling component；Control module described is actually filled for judging
Whether fluence is equal to default charging amount, if it is sends a command to filling module so that it stops filling.For this filling
System and method measures actual charging amount using flow sensor and flowmeter in metering module, obtained by value with
The actual value of refrigerant has deviation in evaporator, and can be of limited application by different its of filling application environment temperature, especially
It is when the refrigerant to middle low-temperature space fills, and required filling pressure is very low, carrys out measurement error meeting using flowmeter
It significantly increases and with high costs.Between above-mentioned reason, a kind of accurate filling system of heat-pipe working medium is researched and developed, measuring temperature and pressure are passed through
Power index realizes that the gas working medium charging amount in different application warm area is precisely controlled, and avoids simple stream flowmeter measurement from becoming because of temperature
Change the filling error brought, but so far there are no related technology reports.
Utility model content
In view of the above-mentioned problems existing in the prior art and demand, the purpose of this utility model are to provide a kind of heat-pipe working medium essence
Quasi- filling system realizes that the gas working medium in the different liquid filled ratios of different application warm area fills by measuring temperature and pressure index
Amount is precisely controlled, the filling error for avoiding simple stream flowmeter measurement from being brought by temperature change.
To achieve the above object, the technical solution adopted in the utility model is as follows：
A kind of accurate filling system of heat-pipe working medium, including component to be filled, vacuum unit and for storing gas working medium
Working medium storage element, the connecting tube that the vacuum unit is controlled by control valve I and members to be filled, feature exist
In：Further include charging amount temperature and pressure measurement and control unit, the charging amount temperature and pressure measurement and control unit includes air reservoir and temperature, pressure collecting mechanism,
The connecting tube that described air reservoir one end is controlled by control valve II and members to be filled, the company that the other end is controlled by pressure reducing valve
It takes over and is connected to working medium storage element, the temperature, pressure collecting mechanism connect with the air reservoir and by the collected air reservoir
Interior pressure data information and temperature data information is exported respectively for calculating the gas working medium charging amount for controlling component to be filled.
A kind of embodiment, the component to be filled are additionally provided with pre-cooler outside.
Preferably, the temperature, pressure collecting mechanism includes temperature, pressure Acquisition Instrument, pressure sensor and temperature
Sensor, the pressure sensor are set to the outlet side of the air reservoir, and the temperature sensor is set in the air reservoir, institute
The collection terminal for stating temperature, pressure Acquisition Instrument connect with pressure sensor, temperature sensor and receives pressure sensor, temperature respectively
The output end of the data acquisition information of sensor, the temperature, pressure Acquisition Instrument connect with computer and by collected number pressure
It is used to calculate the gas working medium charging amount for controlling component to be filled to computer it is believed that breath, temperature data information export respectively.
A kind of embodiment, the vacuum unit are vacuum pump.
Filling system described in the utility model can be realized by following filling methods, be specifically comprised the following steps：
(1) component to be filled is vacuumized and reaches predetermined vacuum degree；
(2) to equipped with air reservoir in filling gas working medium and reach setting value, while by temperature, pressure collecting mechanism into
The constantly acquisition of trip temperature data information and pressure data information；
(3) according in the air reservoir of acquisition temperature data information and pressure data information and to be filled with component to be filled
Gas working medium quality calculates the pressure in corresponding air reservoir when filling is completed；
(4) after carrying out cooling treatment to component to be filled by pre-cooler, gas working medium is filled to component to be filled, works as temperature
When degree pressure acquisition mechanism measures pressure and reaches pressure in the air reservoir that step (3) is calculated, filling is completed.
A kind of embodiment vacuumizes component to be filled using vacuum pump, first closing control valve II and pressure reducing valve,
When vacuumized to component to be filled by vacuum pump and being reached predetermined vacuum and spend, closing control valve I is completed to vacuumize.
A kind of embodiment first opens pressure reducing valve when filling heat-pipe working medium gas into air reservoir, is stored by the working medium single
Member fills gas working medium into air reservoir, and carries out temperature data information and pressure data information by temperature, pressure collecting mechanism
It constantly acquires, when pressure reaches setting value in air reservoir, closes pressure reducing valve, complete the filling of gas working medium in air reservoir.
Further embodiment, the working medium storage element are steel cylinder.
Preferably, the temperature, pressure collecting mechanism passes the pressure data information of acquisition and temperature data information
Transport to computer, the gas working medium quality being filled in component to be filled by computer according to the pressure data information that receives and
Temperature data Information application The Ideal-Gas Equation is calculated.
As further preferred scheme, the opening and closing of the control valve I, control valve II and pressure reducing valve pass through computer
Control is completed.
A kind of embodiment when filling gas working medium to component to be filled, is opened control valve II and is started to component to be filled
It is filled, until when the pressure data information of temperature, pressure Acquisition Instrument acquisition reaches the air reservoir pressure that step (3) is calculated,
Closing control valve II completes filling.
Compared with prior art, the utility model has the advantages that：
The utility model is realized by the intermediate device air reservoir added between the gas working medium of component to be filled
Filling is connect, the pressure value and temperature in air reservoir during the gas working medium filling that combination temperature pressure acquisition mechanism can be monitored effectively
The variation of angle value, and calculate the charging amount of component to be filled accordingly rather than calculate actual charging amount by flow, it is not necessarily to
Flowmeter, accuracy higher is, it can be achieved that the gas working medium charging amount in the different liquid filled ratios of different application warm area is precisely controlled
While, the filling error for avoiding simple stream flowmeter measurement from being brought by temperature change, and the utility model also has structure letter
Singly, the advantages that of low cost, has apparent progressive and application value.
Description of the drawings
Fig. 1 is the accurate filling system principle schematic of a kind of heat-pipe working medium that the utility model embodiment provides.
Figure label is schematically as follows：1, component to be filled；11, pre-cooler；2, vacuum unit；3, charging amount temperature and pressure are surveyed
Control unit；31, air reservoir；32, temperature, pressure collecting mechanism；321, temperature, pressure Acquisition Instrument；322, pressure sensor；323, temperature
Sensor；4, working medium storage element；5, control valve I；6, connecting tube；7, control valve II；8, pressure reducing valve；9, computer.
Specific implementation mode
The technical solution of the utility model is described in further detail below in conjunction with drawings and examples.
Embodiment
In conjunction with shown in Fig. 1, a kind of accurate filling system of heat-pipe working medium provided in this embodiment, including component to be filled 1, pumping
Vacuum unit 2, charging amount temperature and pressure measurement and control unit 3 and the working medium storage element 4 for storing gas working medium, the vacuum unit
2 connecting tubes 6 controlled by control valve I 5 are connected to component 1 to be filled, and the charging amount temperature and pressure measurement and control unit 3 includes air reservoir 31
With temperature, pressure collecting mechanism 32, the connecting tube 6 that 31 one end of the air reservoir is controlled by control valve II 7 connects with component 1 to be filled
Logical, the connecting tube 6 that the other end is controlled by pressure reducing valve 8 is connected to working medium storage element 4, the temperature, pressure collecting mechanism 32 and
The air reservoir 31 connect and by the collected air reservoir 31 pressure data information and temperature data information export use respectively
In calculating the gas working medium charging amount for controlling component 1 to be filled, pre-cooler 11 is additionally provided with outside the component 1 to be filled.
The temperature, pressure collecting mechanism 32 includes temperature, pressure Acquisition Instrument 321, pressure sensor 322 and temperature sensor
323, the pressure sensor 322 is set to the outlet side of the air reservoir 31, and the temperature sensor 323 is set to the air reservoir
In 31, the collection terminal of the temperature, pressure Acquisition Instrument 321 connect and receives with pressure sensor 322, temperature sensor 323 respectively
The data acquisition information of pressure sensor 322, temperature sensor 323, the output end of the temperature, pressure Acquisition Instrument 321 and calculating
Machine 9 connects and exports collected pressure data information, temperature data information respectively and waits filling for calculating to control to computer 9
Note the gas working medium charging amount of component 1.
The vacuum unit 2 is vacuum pump.
Filling system described in the utility model can be realized by following filling methods, be specifically comprised the following steps：
(1) component 1 to be filled is vacuumized and reaches predetermined vacuum degree；
(2) to equipped with air reservoir 2 in filling gas working medium and reach setting value, while passing through temperature, pressure collecting mechanism 32
Carry out the constantly acquisition of temperature data information and pressure data information；
(3) according in the air reservoir of acquisition 31 temperature data information and pressure data information and to be filled with component to be filled
1 gas working medium quality calculates the pressure in corresponding air reservoir 31 when filling is completed；
(4) after carrying out cooling treatment to component 1 to be filled by pre-cooler 11, gas working medium is filled to component 1 to be filled,
When temperature, pressure collecting mechanism 32, which measures pressure, reaches pressure in the air reservoir 31 that step (3) is calculated, filling is completed.
In the present embodiment, component 1 to be filled is vacuumized using vacuum pump, when operation, first closing control valve II 7
With pressure reducing valve 8, when vacuumized to component 1 to be filled by vacuum pump and being reached predetermined vacuum and spend, closing control valve I 5 is completed
It vacuumizes.
When filling heat-pipe working medium gas into air reservoir 31, pressure reducing valve 8 is first opened, from working medium storage element 4 into air reservoir 31
Gas working medium is filled, and constantly adopting for temperature data information and pressure data information is carried out by temperature, pressure collecting mechanism 32
Collection closes pressure reducing valve 8 when pressure reaches setting value in air reservoir 31, the filling of gas working medium in air reservoir 31 is completed, in this implementation
In example, the working medium storage element 4 is steel cylinder.
In view of the convenience of implementation, in the present embodiment, the temperature, pressure collecting mechanism 32 is by the number pressure of acquisition
It is believed that breath and temperature data information are transmitted to computer 9, the gas working medium quality being filled in component 1 to be filled passes through computer 9
It is calculated according to the pressure data information and temperature data Information application The Ideal-Gas Equation that receive, the control valve
I 5, the opening and closing of control valve II 7 and pressure reducing valve 8 can be controlled by computer 9 and be completed.
The gas working medium quality application The Ideal-Gas Equation being filled in component 1 to be filled is calculated by following methods
It arrives：
Before being filled with gas working medium to component 1 to be filled, the quality of gas working medium is in air reservoir 31：
In formula, P0The pressure after gas working medium, V are charged for air reservoirtankFor the volume of air reservoir, R is gas constant, R=
8.3145J/ (molK), M are the molal weight for the molecule that fill gas working medium, T0Constantly to be surveyed by temperature sensor survey
Obtain environment temperature；
After being filled with gas working medium to component 1 to be filled, the quality of remaining gas working medium is in air reservoir 31：
In formula, P1When the gaseous working medium in air reservoir is filled with component to be filled, constantly to be measured by pressure sensor survey
Pressure in air reservoir, VtankFor the volume of air reservoir, R is gas constant, and R=8.3145J/ (molK), M are to fill gas work
The molal weight of the molecule of matter, T0Constantly to measure environment temperature by temperature sensor survey；
It can then show that the filling quality of the gas working medium in component 1 to be filled is：
m2=m0-m1 (3)
When filling gas working medium to component 1 to be filled, opens control valve II 7 and start to fill component 1 to be filled, directly
When the pressure data information acquired to temperature, pressure Acquisition Instrument 321 reaches 31 pressure of air reservoir that step (3) is calculated, control is closed
Valve II 7 processed completes filling.
It is visible in summary：The utility model is realized by the intermediate device air reservoir 31 added to component to be filled
The indirect filling of 1 gas working medium, during the gas working medium filling that combination temperature pressure acquisition mechanism 32 can be monitored effectively
The variation of pressure value and temperature value in air reservoir 31, and calculate accordingly component 1 to be filled charging amount rather than by flow come
Calculate actual charging amount, be not necessarily to flowmeter, accuracy higher, it can be achieved that the different liquid filled ratios in different application warm area gas
While being precisely controlled of working medium charging amount, the filling error for avoiding simple stream flowmeter measurement from being brought by temperature change, Er Qieben
Utility model also have many advantages, such as it is simple in structure, it is of low cost.
It is last it is necessarily pointed out that：The foregoing is merely the preferable specific implementation modes of the utility model, but this
The protection domain of utility model is not limited thereto, and any one skilled in the art discloses in the utility model
In technical scope, the change or replacement that can be readily occurred in should be covered within the scope of the utility model.
Claims (4)
1. a kind of accurate filling system of heat-pipe working medium, including component to be filled, vacuum unit and for storing gas working medium
Working medium storage element, the connecting tube and members to be filled, feature that the vacuum unit is controlled by control valve I exist
In：Further include charging amount temperature and pressure measurement and control unit, the charging amount temperature and pressure measurement and control unit includes air reservoir and temperature, pressure collecting mechanism,
The connecting tube that described air reservoir one end is controlled by control valve II and members to be filled, the company that the other end is controlled by pressure reducing valve
It takes over and is connected to working medium storage element, the temperature, pressure collecting mechanism connect with the air reservoir and by the collected air reservoir
Interior pressure data information and temperature data information is exported respectively for calculating the gas working medium charging amount for controlling component to be filled.
2. filling system according to claim 1, it is characterised in that：It is additionally provided with pre-cooler outside the component to be filled.
3. filling system according to claim 1, it is characterised in that：The temperature, pressure collecting mechanism includes temperature, pressure
Acquisition Instrument, pressure sensor and temperature sensor, the pressure sensor are set to the outlet side of the air reservoir, and the temperature passes
Sensor is set in the air reservoir, and the collection terminal of the temperature, pressure Acquisition Instrument connects with pressure sensor, temperature sensor respectively
Connect and receive the data acquisition information of pressure sensor, temperature sensor, the output end of the temperature, pressure Acquisition Instrument and calculating
Machine is connected and is exported collected pressure data information, temperature data information respectively to be filled for calculating control to computer
The gas working medium charging amount of component.
4. filling system according to claim 3, it is characterised in that：The vacuum unit is vacuum pump.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721754192.0U CN207831994U (en) | 2017-12-15 | 2017-12-15 | A kind of accurate filling system of heat-pipe working medium |
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|---|---|---|---|
| CN201721754192.0U CN207831994U (en) | 2017-12-15 | 2017-12-15 | A kind of accurate filling system of heat-pipe working medium |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106471A (en) * | 2017-12-15 | 2018-06-01 | 陕西仙童科技有限公司 | A kind of accurate filling system of heat-pipe working medium and filling method |
| CN114659395A (en) * | 2022-05-28 | 2022-06-24 | 新乡市特美特热控技术股份有限公司 | Uniform temperature plate filling system and control method |
-
2017
- 2017-12-15 CN CN201721754192.0U patent/CN207831994U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108106471A (en) * | 2017-12-15 | 2018-06-01 | 陕西仙童科技有限公司 | A kind of accurate filling system of heat-pipe working medium and filling method |
| CN114659395A (en) * | 2022-05-28 | 2022-06-24 | 新乡市特美特热控技术股份有限公司 | Uniform temperature plate filling system and control method |
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