JPS6248141U - - Google Patents
Info
- Publication number
- JPS6248141U JPS6248141U JP13947985U JP13947985U JPS6248141U JP S6248141 U JPS6248141 U JP S6248141U JP 13947985 U JP13947985 U JP 13947985U JP 13947985 U JP13947985 U JP 13947985U JP S6248141 U JPS6248141 U JP S6248141U
- Authority
- JP
- Japan
- Prior art keywords
- damper
- electric
- duct
- air volume
- return duct
- 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.)
- Pending
Links
- 230000001681 protective effect Effects 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 2
Landscapes
- Motor Or Generator Frames (AREA)
Description
第１図は本考案による内圧防爆構造の電気機器
の一実施例を示す系統図、第２図は従来の内圧防
爆構造の電気機器の系統図である。
１……電気機器、２……加給ダクト、４……ヒ
ータ、５……送風機、９……温度検出器、１０…
…制御器、１１……戻りダクト、１２……電気式
定風量ダンパ、１３……第１電動ダンパ、１４…
…排気ダクト、１５……第２電動ダンパ。
FIG. 1 is a system diagram showing an embodiment of an electrical device with an internal pressure explosion-proof structure according to the present invention, and FIG. 2 is a system diagram of a conventional electrical device with an internal pressure explosion-proof structure. 1... Electrical equipment, 2... Charge duct, 4... Heater, 5... Blower, 9... Temperature detector, 10...
... Controller, 11 ... Return duct, 12 ... Electric constant air volume damper, 13 ... First electric damper, 14 ...
...Exhaust duct, 15...Second electric damper.
Claims (1)
内圧防爆構造の電気機器において、前記電気機器
の排気側と前記送風機の吸込側の前記保護気体の
加給ダクトとをつなぐ戻りダクトを設けると共に
、この戻りダクト途上に電気式定風量ダンパ及び
第１電動ダンパとを直列に設け、前記第１電動ダ
ンパと電気式定風量ダンパとの間の前記戻りダク
トから分岐する排気ダクトを設け、この排気ダク
トに第２電動ダンパを設け、前記電気機器の入気
側に温度検出器を設け、この温度検出器の検出温
度信号に応じ、前記第１電動ダンパ、第２電動ダ
ンパ、電気式定風量ダンパ及びヒータに動作指示
を与える制御器を設けたことを特徴とする内圧防
爆構造の電気機器。 Protective gas supply duct In an electrical device having an internal pressure explosion-proof structure provided with a blower and a heater, a return duct is provided that connects the exhaust side of the electrical device and the protective gas supply duct on the suction side of the blower, and a return duct is provided in the middle of the return duct. an electric constant air volume damper and a first electric damper are provided in series, an exhaust duct is provided that branches from the return duct between the first electric damper and the electric constant air volume damper, and a second electric damper is provided in the exhaust duct. A damper is provided, and a temperature detector is provided on the inlet side of the electrical equipment, and an operation instruction is given to the first electric damper, the second electric damper, the electric constant air volume damper, and the heater according to the detected temperature signal of the temperature detector. Electrical equipment with an internal pressure explosion-proof structure, characterized by being equipped with a controller that provides
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13947985U JPS6248141U (en) | 1985-09-13 | 1985-09-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP13947985U JPS6248141U (en) | 1985-09-13 | 1985-09-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6248141U true JPS6248141U (en) | 1987-03-25 |
Family
ID=31045420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP13947985U Pending JPS6248141U (en) | 1985-09-13 | 1985-09-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6248141U (en) |
-
1985
- 1985-09-13 JP JP13947985U patent/JPS6248141U/ja active Pending