Refrigeration system employing multiple economizer circuits
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F25B-041/00
F25B-001/00
출원번호
US-0224759
(2002-08-21)
발명자
/ 주소
Lifson, Alexander
Tang, Yan
출원인 / 주소
Carrier Corporation
대리인 / 주소
Carlson, Gaskey & Olds
인용정보
피인용 횟수 :
26인용 특허 :
12
초록▼
The refrigeration system of the present invention includes multiple economizer circuits. After flowing through the condenser, a first path of refrigerant is split from the main path. The refrigerant in the first path is expanded to a lower pressure and cools the refrigerant in the main path in the h
The refrigeration system of the present invention includes multiple economizer circuits. After flowing through the condenser, a first path of refrigerant is split from the main path. The refrigerant in the first path is expanded to a lower pressure and cools the refrigerant in the main path in the high pressure economizer heat exchanger. The refrigerant in the first path then returns to the compressor in a high pressure economizer port. A second path of refrigerant is then split from the main path. The refrigerant in the second flow path is expanded to a lower pressure and cools the refrigerant in the main path in the low pressure economizer heat exchanger. The refrigerant in the second path then return to the compressor in a low pressure economizer port. The refrigerant in the main path is then evaporated. The dual stage economizer refrigeration system can be employed with a screw compressor or a scroll compressor.
대표청구항▼
The refrigeration system of the present invention includes multiple economizer circuits. After flowing through the condenser, a first path of refrigerant is split from the main path. The refrigerant in the first path is expanded to a lower pressure and cools the refrigerant in the main path in the h
The refrigeration system of the present invention includes multiple economizer circuits. After flowing through the condenser, a first path of refrigerant is split from the main path. The refrigerant in the first path is expanded to a lower pressure and cools the refrigerant in the main path in the high pressure economizer heat exchanger. The refrigerant in the first path then returns to the compressor in a high pressure economizer port. A second path of refrigerant is then split from the main path. The refrigerant in the second flow path is expanded to a lower pressure and cools the refrigerant in the main path in the low pressure economizer heat exchanger. The refrigerant in the second path then return to the compressor in a low pressure economizer port. The refrigerant in the main path is then evaporated. The dual stage economizer refrigeration system can be employed with a screw compressor or a scroll compressor. ding transversely from a hot sleeve disposed internally to, and concentrically with, the cylindrical wall section, the flow diverters not contacting the cylindrical wall section. 3. In a heater head for a thermal cycle heat engine, the heater head having a substantially cylindrical wall section and a central longitudinal axis, an improvement comprising a plurality of ribs interior to the substantially cylindrical wall section for providing enhanced hoop strength and a plurality of passages substantially parallel to the central longitudinal axis and passing through the ribs strength and a plurality of flow diverters extending transversely from a hot sleeve disposed internally to, and concentrically with, the cylindrical wall section, the flow diverters not contacting the cylindrical wall section. 4. In a heater head for a thermal cycle heat engine, the heater head having a substantially cylindrical wall section, an improvement comprising a substantially helical channel within the substantially cylindrical wall section and a plurality of flow diverters extending transversely from a hot sleeve disposed internally to, and concentrically with, the cylindrical wall section, the flow diverters not contacting the cylindrical wall section. 5. In a heater head for a thermal cycle heat engine, the heater head having a dome and a substantially cylindrical wall section, an improvement comprising a plurality of ribs interior to the dome for providing enhanced dome strength and a plurality of flow diverters extending transversely from a hot sleeve disposed internally to, and concentrically with, the cylindrical wall section, the flow diverters not contacting the cylindrical wall section. flow rate measuring means are equivalent. 2. The exhaust gas dilution apparatus according to claim 1, wherein the second flow rate measuring means comprises: dividers, a plurality of venturis, one provided in each of the dividers, a plurality of pressure difference detectors for measuring a pressure difference between a high pressure side and a low pressure side of each venturi, and an averaging circuit which averages the electric signals detected by the pressure difference detectors. 3. The exhaust gas dilution apparatus according to claim 1, wherein the second flow rate measuring means comprises: a plurality of dividers, a plurality of venturis for measurement in representative dividers selected from the plurality of dividers, and dummy venturis in the plurality of dividers, excluding the dividers for which the venturis for measurement are provided, and have a throttle with the same configuration as that provided in the plurality of venturis for measurement. 4. The exhaust gas dilution apparatus according to claim 1, wherein the second flow rate measuring means comprises: dividers, pressure introduction pipes, a plurality of venturis, one provided in each of the dividers, and one pressure difference detector for measuring a pressure difference between a high pressure side and a low pressure side in combined pressure introduction pipes on the high pressure side and the low pressure side, which are formed by respectively combining the pressure introduction pipes of the plurality of venturis on the high pressure side and the low pressure side. 5. The exhaust gas dilution apparatus according to claim 1, further comprising: monitor means for continuously monitoring the flow rates obtained by the first and/or second flow rate measuring means. 6. The exhaust gas dilution apparatus according to claim 1, further comprising: result decision means for determining whether differences in the flow rates obtained by the first and second flow rate measuring means are within a previously specified range of deviation or above a previously specified correlation coefficient during a period of measurement and outputting results indicative thereof, or for determining based on the results, whether the divider exhibits flow division performance with permissible accuracy. 7. In an exhaust gas dilution apparatus equipped with a divider which divides exhaust gas introduced therein into a plurality of flows and has a first divider pipe for extracting a portion of the gas into a dilution tunnel and a second divider pipe for exhausting the remaining portion to an exhaust chamber, the exhaust gas dilution apparatus comprising: first and second fluid throttling means having equivalent performance, provided in an equivalent position respectively in the first and second divider pipes; high pressure side pressure difference detection means for detecting a first pressure difference between a high pressure side of the first fluid throttling means and a high pressure side of the second fluid throttling means; low pressure side pressure difference detection means for detecting a second pressure difference between a low pressure side of the first fluid throttling means and a low pressure side of the second fluid throttling means; exhaust adjustment means for adjusting an exhaust from the exhaust chamber; and control means for controlling the exhaust adjustment means so that the first and second pressure differences detected are equivalent and zero. 8. The exhaust gas dilution apparatus according to claim 7, wherein the high pressure side pressure difference detection means and the low pressure side pressure difference detection means each comprise a cylinder, a free piston slidably inserted into the cylinder, and a piston position detecting means for detecting a position of the free piston. 9. The exhaust gas dilution apparatus according to claim 7, further comprising: monitor means for continuously monitoring the fi
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (12)
Igor Vaisman CA, Capacity control of refrigeration systems.
Lifson Alexander ; Karpman Boris, Method of optimizing cooling capacity, energy efficiency and reliability of a refrigeration system during temperature pull down.
Zimmern Bernard (6 New St. East Norwalk CT 06855) Knopp Joseph L. (Staunton VA), Methods and devices for cooling a motor of a refrigerating machine with liquid and economizer gas.
Haley, Paul F.; Dorman, Dennis R.; Hamm, Jr., Frederic Byron; Foye, David M.; Kwiatkowski, James A.; James, Rick T.; Janssen, Randall L.; Plzak, William J., Centrifugal compressor assembly and method.
Haley, Paul F.; Dorman, Dennis R.; Hamm, Jr., Frederic Byron; Foye, David M.; Kwiatkowski, James A.; James, Rick T.; Janssen, Randall L.; Plzak, William J., Centrifugal compressor assembly and method.
Haley, Paul H.; Dorman, Dennis R.; Hamm, Jr., Frederic Byron; Foye, David M.; Kwiatkowski, James A.; James, Rick T.; Janssen, Randall L.; Plzak, William J., Centrifugal compressor assembly and method.
Ko, Younghwan; Park, Sangkyoung; Jang, Yonghee; Kim, Bumsuk, Heat pump including at least two refrigerant injection flow paths into a scroll compressor.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.