Electric heating apparatus for providing freeze protection for fluid-control devices at well sites
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
H05B-001/02
H05B-003/34
E03B-007/10
F16K-049/00
출원번호
US-0533069
(1983-09-19)
발명자
/ 주소
Ball, Randell D.
대리인 / 주소
Gilbert, III, E. Harrison
인용정보
피인용 횟수 :
25인용 특허 :
2
초록▼
An electric heating apparatus for providing freeze protection for a fluid-control device, such as a gas regulator, at a well site includes a flexible electric heating pad adapted to be wrapped around the control device to be freeze-protected and a two part thermally insulated housing adapted to be p
An electric heating apparatus for providing freeze protection for a fluid-control device, such as a gas regulator, at a well site includes a flexible electric heating pad adapted to be wrapped around the control device to be freeze-protected and a two part thermally insulated housing adapted to be placed about the heating pad and control device when the apparatus is installed. The heating pad is adapted to be energized from a rechargeable battery under the control of a thermostat within the housing which disconnects heating pad from the battery when the temperature in the housing rises above a temperature of about 40° F. A solar panel provides direct current for recharging the battery. A second thermostat disconnects the solar panel from the battery when the ambient temperature rises above about 50° F. to terminate charging of the battery.
대표청구항▼
1. An apparatus for heating a fluid-control device disposed at a well, comprising: a heating pad for applying heat to a first portion of a fluid-control device disposed at a well, said pad including: a flexible member having a central web and four legs extending outward from said web; means fo
1. An apparatus for heating a fluid-control device disposed at a well, comprising: a heating pad for applying heat to a first portion of a fluid-control device disposed at a well, said pad including: a flexible member having a central web and four legs extending outward from said web; means for connecting a first one of said legs to a second one of said legs about the fluid-control device; means for connecting a third one of said legs to a fourth one of said legs about the fluid-control device; heating element means, disposed in said flexible member, for generating heat in response to electricity; and conductor means for conducting electricity to said heating element means; an insulated housing having an interior cavity defined therein, said housing including a first member, a second member and means for connecting said first member to said second member about said heating pad when said apparatus is installed on the fluid-control device; a rechargeable battery; a solar panel for generating electricity to recharge said battery; first connector means for electrically connecting said battery to said conductor means, said first connector means including first thermostatic control means, disposed in said housing, for providing an energizing electrical path between said battery and said conductor means, said energizing electrical path disconnectable in response to said first thermostatic control means sensing within said housing a temperature exceeding a first reference level; and second connector means for electrically connecting said solar panel and said battery, said second connector means including second thermostatic control means for providing a recharging electrical path between said solar panel and said battery, said recharging electrical path disconnectable in response to said second thermostatic control means sensing a temperature exceeding a second reference level, said second reference level being at least as great as said first reference level. 2. An apparatus as defined in claim 1, wherein said first reference level is approximately 40° F. and said second reference level is approximately 50° F. 3. An apparatus as defined in claim 1, wherein: the fluid-control device disposed at the well is a gas regulator which is responsive to atmospheric pressure control; said first member of said housing includes a first outer shell, a first inner shell associated with said first outer shell so that a first void region is defined therebetween, and first insulation material disposed in said first void region; and said second member of said housing includes a second outer shell, a second inner shell associated with said second outer shell so that a second void region is defined therebetween, and second insulation material disposed in said second void region, and said second member further includes a vent opening defined through said second outer shell, said second insulation material and said second inner shell so that atmospheric pressure is communicated therethrough for controlling the gas regulator when said housing is mounted thereon. 4. An apparatus as defined in claim 3, further comprising a vent cover rotatably disposed in said vent opening, said vent cover having liquid-shedding louvers for resisting entry of liquids into said housing through said vent opening. 5. An apparatus as defined in claim 4, wherein said first reference level is approximately 40° F. and said second reference level is approximately 50° F. 6. An apparatus for heating a fluid-control device connected in a pipeline disposed at a well, said apparatus comprising: a heating pad for applying heat to the portion of a fluid-control device which is connected directly in a pipeline disposed at a well, said pad including: a first flexible member having a central web and four legs extending outward from said web; means for connecting a first one of said legs to a second one of said legs about the fluid-control device; means for connecting a third one of said legs to a fourth one of said legs about the fluid-control device; and first heating element means, disposed in said flexible member, for generating heat in response to electricity; a heating collar for applying heat to another portion of the fluid-control device, which another portion extends outwardly from the first-mentioned portion of the fluid-control device, said heating collar including: a second flexible member, said second flexible member having a rectangular shape which defines a ring-like configuration when said second flexible member is connected around the fluid-control device; and second heating element means, disposed in said second flexible member, for generating heat in response to electricity; an insulated housing having an interior cavity defined therein, said housing including a first member, a second member and means for connecting said first member to said second member about said heating pad and said heating collar when said housing is installed on the fluid-control device, said second member including a vent opening defined therein so that atmospheric air is communicated with the interior of said housing; a rechargeable battery; a solar panel for generating electricity to recharge said battery; first connector means for electrically connecting said battery to said first heating element means, said first connector means including first thermostatic control means, disposed in said housing, for providing between said battery and said first heating element means a disconnectable electrical path responsive to said first thermostatic control means sensing within said housing a temperature exceeding a first reference level; second connector means for electrically connecting said solar panel and said battery, said second connector means including second thermostatic control means for providing between said solar panel and said battery a disconnectable electrical path responsive to said second thermostatic control means sensing a temperature exceeding a second reference level which is greater than said first reference level; and a vent cover rotatably disposed in said vent opening, said vent cover having liquid-shedding louvers for resisting entry of liquids into said housing through said vent opening. 7. An apparatus as defined in claim 6, wherein said first reference level is approximately 40° F. and said second reference level is approximately 50° F.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (2)
Thorn Michael R. (107 E. Sherman St. Lynn IN 47355), Fuel oil supply system having an electrically heated filter.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.