Pressure recovery insert for reciprocating gas compressor
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F04B-039/00
F04B-053/00
E04F-017/04
출원번호
US-0749734
(2010-03-30)
등록번호
US-8740581
(2014-06-03)
발명자
/ 주소
Nored, Marybeth G.
Brun, Klaus
Deffenbaugh, Danny M
출원인 / 주소
Southern Gas Association Gas Machinery Research Council
대리인 / 주소
Booth Albanesi Schroeder, LLC
인용정보
피인용 횟수 :
1인용 특허 :
13
초록▼
A method of reducing pulsations in a reciprocating compressor system, the system having nozzles between cylinders and filter bottles of the compressor system, the nozzles attaching at ports of the cylinders and filter bottles. A special insert is designed to be placed in one or more of the nozzle. T
A method of reducing pulsations in a reciprocating compressor system, the system having nozzles between cylinders and filter bottles of the compressor system, the nozzles attaching at ports of the cylinders and filter bottles. A special insert is designed to be placed in one or more of the nozzle. The insert is generally cylindrical, but has a narrowed throat, a flared inlet end, and a flared outlet end. The insert dimensions, such as the inner diameter of the throat and the distance from the throat to the outlet end are calculated to reduce pulsations as well as provide pressure recovery.
대표청구항▼
1. A method of reducing pulsations associated with the a flow of fluid through a reciprocating compressor system for operating between two gas transmission lines, the method comprising: (a) Determining an amplitude or a frequency of the pulsations to be reduced in the reciprocating compressor system
1. A method of reducing pulsations associated with the a flow of fluid through a reciprocating compressor system for operating between two gas transmission lines, the method comprising: (a) Determining an amplitude or a frequency of the pulsations to be reduced in the reciprocating compressor system, the reciprocating compressor system having: a reciprocating compressor having a plurality of cylinders,a plurality of generally cylindrical connecting conduits, anda plurality of other system elements, and wherein each of the plurality of connecting conduits connects the reciprocating compressor to an other system element; (b) Calculating dimensions of a pulsation-reducing insert to be placed in a connecting conduit, the pulsation-reducing insert being a tube having a tube wall defining an interior passageway, an inlet and an outlet at opposite ends of the tube, and wherein the tube interior narrows from an inlet inner diameter to a narrowed throat inner diameter, and enlarges from the narrowed throat inner diameter to an outlet inner diameter; wherein the dimensions calculated include the throat inner diameter and an axial distance from the throat to the outlet end of the pulsation-reducing insert;(c) Placing the pulsation-reducing insert into a connecting conduit of the reciprocating compressor system such that the inlet end is upstream of the outlet end of the pulsation-reducing insert; and(d) Attaching the connecting conduit having the pulsation-reducing insert therein to the reciprocating compressor or one of the plurality of other system element; and(e) boring a hole through the tube wall of the insert, the hole fluidly connecting the interior of the tube to an annular space defined between the insert and the connecting conduit, such that the annular space between the insert and the connecting conduit further attenuates pulsations. 2. The method of claim 1, further comprising the step of placing a choke tube in the hole extending through the tube wall of the insert. 3. The method of claim 1, wherein the plurality of other system elements includes filter bottles connected to the reciprocating compressor by connecting conduits, and wherein the step of placing the pulsation-reducing insert into a connecting conduit further comprises the step of placing the pulsation-reducing insert into a connecting conduit extending between a filter bottle and the reciprocating compressor. 4. The method of claim 3, wherein the step of placing the pulsation-reducing insert into a connecting conduit further comprises placing the insert into a connecting conduit extending between a filter bottle and a cylinder of the reciprocating compressor. 5. The method of claim 1, wherein the reciprocating compressor defines a suction side and a discharge side, and wherein the step of placing the pulsation-reducing insert further comprises the step of placing the insert on the discharge side of the reciprocating compressor. 6. The method of claim 1, wherein the pulsation-reducing insert further comprises a lip extending radially outward from the inlet end of the tube, and further comprising the step of maintaining the pulsation-reducing insert in position in the connecting conduit using the lip. 7. The method of claim 1, wherein the step of attaching the connecting conduit further includes the step of attaching the connecting conduit using a radially outwardly extending flange having bolt holes therethrough. 8. The method of claim 1, further comprising the step of fluidly connecting the interior space defined in the pulsation-reducing insert to a space defined exterior to the pulsation-reducing insert. 9. The method of claim 8, wherein the space defined exterior to the pulsation-reducing insert is exterior to the connecting conduit. 10. A method of reducing pulsations associated with a flow of fluid through an existing reciprocating compressor system operating between two gas transmission lines, the method comprising: (a) determining a characteristic of the pulsations to be reduced;(b) based on the determined characteristic, calculating preferred dimensions of a pulsation-reducing insert to be placed in a connecting conduit of the reciprocating compressor system;(c) positioning the pulsation-reducing insert into a connecting conduit extending between elements of the reciprocating compressor system, the pulsation-reducing insert having a generally cylindrical wall defining an interior passageway, the interior passageway open at both ends, the insert having a minimum inner diameter at an insert throat positioned between radially outwardly flared inlet and outlet sections of the insert, the pulsation-reducing insert having at least one hole defined extending through the generally cylindrical wall, and the step of fluidly connecting the interior passageway of the insert to an annular space defined between the insert and the connecting conduit in which it is positioned; and(d) attaching the connecting conduit, with the pulsation-reducing insert positioned therein, to an element of the reciprocating compressor system. 11. The method of claim 10, wherein step (b) further comprises calculating a preferred throat inner diameter of the pulsation-reducing insert and a preferred axial distance between the throat and an outlet end of the pulsation-reducing insert. 12. The method of claim 10, wherein step (c) further comprises positioning the pulsation-reducing insert in a connecting conduit extending between a reciprocating compressor of the reciprocating compressor system and a filter bottle of the reciprocating compressor system. 13. The method of claim 12, wherein step (c) further comprises positioning the pulsation-reducing insert in a connecting conduit extending between a cylinder of the reciprocating compressor and a filter bottle of the reciprocating compressor system. 14. The method of claim 12, wherein step (c) further comprises positioning the pulsation-reducing insert in a connecting conduit extending between the reciprocating compressor and an element of the reciprocating compressor system positioned on a discharge side of the reciprocating compressor. 15. The method of claim 12, wherein step (c) further comprises positioning the pulsation-reducing insert in a connecting conduit extending between a reciprocating compressor of the reciprocating compressor system and a filter bottle of the reciprocating compressor system. 16. The method of claim 10, wherein step (d) further comprises attaching the connecting conduit, with the pulsation-reducing insert positioned therein, to an element of the reciprocating compressor system via a flange having bolt holes extending therethrough. 17. The method of claim 10, further comprising the step of (e) maintaining the pulsation-reducing insert in position in a connecting conduit using a radially outwardly extending lip of the insert. 18. The method of claim 10, wherein step (a) further comprises determining a frequency, amplitude or other characteristic of the pulsations to be reduced.
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이 특허에 인용된 특허 (13)
Agarwal Suresh C. (Euclid OH), Centrifugal compressor surge control system.
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