CN206787124U - A kind of constant-temperature circulating device heated using PTC - Google Patents
A kind of constant-temperature circulating device heated using PTC Download PDFInfo
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- CN206787124U CN206787124U CN201720554168.6U CN201720554168U CN206787124U CN 206787124 U CN206787124 U CN 206787124U CN 201720554168 U CN201720554168 U CN 201720554168U CN 206787124 U CN206787124 U CN 206787124U
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- temperature
- refrigerant accumulator
- accumulator
- egr
- ptc
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Abstract
The utility model discloses a kind of constant-temperature circulating device of PTC heating, including refrigerant accumulator, PTC heaters, EGR, the first temperature-detecting device and second temperature detection means；PTC heaters are installed in described refrigerant accumulator outside wall surface；Circulation import is offered at the top of described refrigerant accumulator, the first temperature-detecting device, described refrigerant accumulator bottom installation tee one-way valve are installed in described refrigerant accumulator.The utility model is that filling machine carries out the stable premise accurately filled.
Description
Technical field
It the utility model is related to a kind of constant-temperature circulating device of PTC heating.
Background technology
During enterprise produces refrigeration product, as environmental requirement is constantly strengthened, increasing enterprise needs
Use the super low temperature refrigeration agent such as R170, carbon dioxide, be the characteristics of super low temperature refrigeration agent on its critical-temperature, no matter pressure
More high, it can all be maintained at gaseous state；Given this utility model carries out heated constant temperature when super low temperature refrigeration agent fills machine use
Processing.
Utility model content
The purpose of this utility model is to provide a kind of constant-temperature circulating device of PTC heating, and the utility model is ultralow temperature
Refrigerant filling machine provides a kind of suitable temperature environment, is that filling machine carries out the stable premise accurately filled.
In order to achieve the above object, the technical solution of the utility model is：
A kind of constant-temperature circulating device of PTC heating, including refrigerant accumulator, PTC heaters, EGR, first
Temperature-detecting device and second temperature detection means；PTC heaters are installed in described refrigerant accumulator outside wall surface；Institute
Circulation import is offered at the top of the refrigerant accumulator stated, the first temperature detection dress is installed in described refrigerant accumulator
Put, described refrigerant accumulator bottom installation tee one-way valve, described tee one-way valve one end and refrigerant accumulator bottom
Portion connects, and the second end is as refrigerant accumulator inlet, and the 3rd end is as refrigerant accumulator liquid outlet；Described inlet
Connected with feed tube, described liquid outlet connects with drain pipe；Described drain pipe and the inlet communication of EGR；Described
The outlet of EGR passes through pipeline and the circulation inlet communication at the top of refrigerant accumulator, and described EGR and circulation
Second temperature detection means is also equipped with pipeline between import；Circulation import at the top of described refrigerant accumulator is also logical
Pipeline is crossed to connect with liquid feeding machine gun head.
The beneficial effects of the utility model are：The utility model fills machine for ultralow temperature refrigerant and provides a kind of suitable temperature
Environment, it is that filling machine carries out the stable premise accurately filled；The utility model PTC heaters have that thermal resistance is small, heat exchange efficiency is high, are
A kind of automatic constant-temperature, the electric heater of power saving.Security can be improved, will not be produced such as electric heating tubing under any applicable cases
Surface " rubescent " phenomenon of heater, so as to cause the potential safety hazards such as scald, fire.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Embodiment 1
As shown in figure 1, a kind of constant-temperature circulating device of PTC heating of the present embodiment, including refrigerant accumulator 1, PTC add
Thermal 2, EGR 11, the first temperature-detecting device 3 and second temperature detection means 9；Outside described refrigerant accumulator 1
PTC heaters 2 are installed on wall；The described top of refrigerant accumulator 1 offers circulation import 8, described refrigerant
First temperature-detecting device 3 is installed, installation tee one-way valve 7 in the described bottom of refrigerant accumulator 1 is described in accumulator 1
The one end of tee one-way valve 7 connected with the bottom of refrigerant accumulator 1, the second end is as refrigerant accumulator inlet 4, the 3rd end
As refrigerant accumulator liquid outlet 5；Described inlet 4 connects with feed tube 12, and described liquid outlet 5 connects with drain pipe 13
It is logical；The import 6 of described drain pipe 13 with EGR 11 connects；The outlet 10 of described EGR 11 passes through pipeline and system
The circulation import 8 at the top of cryogen accumulator 1 connects, and also pacifies on the pipeline between described EGR 11 and circulation import 8
Equipped with second temperature detection means 9；The circulation import 8 at the described top of refrigerant accumulator 1 also passes through pipeline and liquid feeding machine gun
First 14 connection.
It is that a kind of PTC heaters are called ptc heater that the present embodiment, which proposes PTC heaters, is generated heat using PTC-ceramic
Element forms with aluminum pipe.
A kind of constant-temperature circulating device of PTC heating of the present embodiment, the first described temperature-detecting device 3 detection refrigerant
The real time temperature of accumulator 1；Described second temperature detection means 9 is used for the environment temperature of detecting system.First with refrigerant
Inlet 4 on the bottom tee one-way valve 7 of accumulator 1 conveys refrigerant and enters refrigerant accumulator 1；Then PTC heaters 2 are right
Described refrigerant accumulator 1 carries out entirety and is heated to assigned temperature（40 degrees Celsius）When, the refrigerant in refrigerant accumulator 1
EGR 11 is transported to by the liquid outlet 5 on tee one-way valve 7, EGR 11 is started working, when second temperature detects
Device 9 detects that system temperature reaches design temperature（38 degrees Celsius）When, i.e., the described temperature of refrigerant accumulator 1 is higher than setting
During temperature, PTC heaters 2 start to finely tune decline temperature to design temperature, to reach state of the system with respect to constant temperature；Work as beginning
During filling, EGR 11 is stopped, and refrigerant is conveyed to liquid feeding machine gun head 14 by refrigerant accumulator 1.External refrigeration
Agent enters EGR by feed tube 12, and EGR starts next circulation.
The present embodiment fills machine for ultralow temperature refrigerant and provides a kind of suitable temperature environment, is that filling machine carries out stabilization accurately
The premise of filling；The present embodiment PTC heaters have that thermal resistance is small, heat exchange efficiency is high, are a kind of automatic constant-temperature, the electrical heating of power saving
Device.Security can be improved, surface " rubescent " phenomenon such as electric heating tubing heater will not be produced under any applicable cases, from
And cause scald, the potential safety hazard such as fire.
Claims (1)
- A kind of 1. constant-temperature circulating device of PTC heating, it is characterised in that：Including refrigerant accumulator (1), PTC heaters (2), EGR（11）, the first temperature-detecting device（3）With second temperature detection means（9）；Described refrigerant accumulator (1) PTC heaters (2) are installed in outside wall surface；Circulation import is offered at the top of described refrigerant accumulator (1)（8）, institute The first temperature-detecting device is installed in the refrigerant accumulator (1) stated（3）, described refrigerant accumulator（1）Install bottom Tee one-way valve（7）, described tee one-way valve（7）One end and refrigerant accumulator（1）Bottom connects, and the second end is as system Cryogen accumulator inlet（4）, the 3rd end is as refrigerant accumulator liquid outlet（5）；Described inlet（4）With feed tube （12）Connection, described liquid outlet（5）With drain pipe（13）Connection；Described drain pipe（13）With EGR（11）Import （6）Connection；Described EGR（11）Outlet（10）Pass through the circulation import at the top of pipeline and refrigerant accumulator (1) （8）Connection, and described EGR（11）With circulating import（8）Between pipeline on be also equipped with second temperature detection means （9）；Circulation import at the top of described refrigerant accumulator (1)（8）Also pass through pipeline and liquid feeding machine gun head（14）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720554168.6U CN206787124U (en) | 2017-05-18 | 2017-05-18 | A kind of constant-temperature circulating device heated using PTC |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720554168.6U CN206787124U (en) | 2017-05-18 | 2017-05-18 | A kind of constant-temperature circulating device heated using PTC |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206787124U true CN206787124U (en) | 2017-12-22 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201720554168.6U Active CN206787124U (en) | 2017-05-18 | 2017-05-18 | A kind of constant-temperature circulating device heated using PTC |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014121A (en) * | 2017-05-18 | 2017-08-04 | 绍兴西爱西尔数控科技有限公司 | A kind of constant-temperature circulating device of use PTC heating |
-
2017
- 2017-05-18 CN CN201720554168.6U patent/CN206787124U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107014121A (en) * | 2017-05-18 | 2017-08-04 | 绍兴西爱西尔数控科技有限公司 | A kind of constant-temperature circulating device of use PTC heating |
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