CN103075849A - Refrigerant throttling device with temperature and pressure monitoring function - Google Patents
Refrigerant throttling device with temperature and pressure monitoring function Download PDFInfo
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- CN103075849A CN103075849A CN2013100599738A CN201310059973A CN103075849A CN 103075849 A CN103075849 A CN 103075849A CN 2013100599738 A CN2013100599738 A CN 2013100599738A CN 201310059973 A CN201310059973 A CN 201310059973A CN 103075849 A CN103075849 A CN 103075849A
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Abstract
The invention discloses a refrigerant throttling device with a temperature and pressure monitoring function. The refrigerant throttling device comprises a refrigerant throttling device, wherein a low-pressure cut-off switch is arranged above one side of a valve body of the refrigerant throttling device, a refrigeration controller is arranged under one side of the valve body, a signal wire socket is connected under the refrigeration controller, the low-pressure cut-off switch is connected with the refrigeration controller through a low-pressure cut-off signal wire, and the low-pressure cut-off switch is connected with the signal wire socket through another low-pressure cut-off signal wire. The refrigerant throttling device solves the problem that the existing throttling device cannot realize the direct monitoring on the refrigerant temperature and cannot automatically cut off the protection when the air inlet pressure of a compressor is too low, an additional temperature and pressure monitoring device is omitted for the refrigeration system, and the hardware cost and the use space are saved.
Description
Technical field
The present invention relates to the cold-producing medium throttle control device, especially relate to a kind of cold-producing medium throttling arrangement with temperature, pressure monitoring function.
Background technology
Throttle mechanism and compressor, condenser, evaporimeter and be called " the four large parts " of refrigeration system in refrigeration system, it is one of requisite element in the refrigeration system, play a part reducing pressure by regulating flow, directly controlling the degree of superheat of flow and the evaporator outlet of evaporator refrigerant.Existing throttle mechanism does not exist compressor air inlet low-voltage variation function and temperature-monitoring function; cause extra pressure monitoring device and the device for detecting temperature of increasing of existing refrigeration system needs to guarantee that refrigeration system normally moves; cost consumption is larger; and extra device can take many spaces; because limited by monitoring location during monitoring; the actual monitoring data are also not accurate enough, and compressor fails in time to shut down to cause evaporimeter frosting, the rapid drawdown of compressor life-span even damage.Therefore the design invention has accurate monitoring refrigerant temperature and compressor admission pressure, not only plays the effect of protection compressor, and reduces hardware cost, reaches the order that constantly improves refrigeration system.
Summary of the invention
The object of the present invention is to provide a kind of cold-producing medium throttling arrangement with temperature, pressure monitoring function; accurately monitoring refrigerant temperature and compressor air inlet refrigerant pressure are crossed the automatic tripping protection of energy when hanging down, are saved refrigeration system hardware cost and usage space.
The technical solution used in the present invention is:
The present invention includes the cold-producing medium throttling arrangement, low pressure is installed above valve body one side of cold-producing medium throttling arrangement cuts off switch, valve body one side-lower is installed refrigeration controler, the refrigeration controler below connects signal wire socket, low pressure is cut off switch and is connected refrigeration controler by a low pressure shutoff signal line, and low pressure is cut off switch and connected signal wire socket by another root low pressure shutoff signal line.
Described low pressure is cut off switch and is fixed on the valve body by the switch protection cover; switch protection cover splicing ear protective cover; switch protection cover installed inside has barrier film; between barrier film and the switch protection cover seal washer is arranged, the barrier film back-up ring is installed in the seal washer outside, and the barrier film outside connects contact pad; the barrier film back-up ring contacts with contact pad; there is switch spring in the contact pad outside, and switch spring is between contact pad and terminal protecting cover, and centre bit is equipped with the switching line joint in the terminal protecting cover.
Described refrigeration controler main part is the cryogenic temperature monitor stand, the cryogenic temperature monitor stand is fixed on the valve body by fixed screw, with the monitor stand upper side of fixed screw homonymy temperature sensor is installed, two temperature signal lines of refrigeration controler support below are connected with signal wire socket.
Described cold-producing medium throttling arrangement, its valve body top is connected with unit head, top, valve body one side has the compressor connector, below, valve body one side has the condenser connector, between compressor connector and the condenser connector locating hole is arranged, top, valve body another side has evaporimeter gaseous state end connector, below, valve body another side has the liquid end of evaporimeter connector, drive link perpendicular to unit head is installed in the valve body centre bore, the drive link upper end connects unit head, linking springs ball pad behind the valve body lower end aperture is passed in the drive link lower end, spring ball pad regulating spring one end interior with being installed in the valve body lower end macropore contacts, and the other end of regulating spring is installed in the set screw hole; Evaporimeter gaseous state end connector is communicated with the compressor connector through the valve body centre bore, and the liquid end of evaporimeter connector is communicated with the condenser connector through the valve body centre bore, and the liquid end of evaporimeter connector axis is positioned at above the condenser connector axis.
The beneficial effect that the present invention has is:
1) the present invention has overcome existing throttling arrangement directly monitoring refrigerant temperature and compressor admission pressure has been crossed when low the automatically problem of tripping protection.
2) save extra temperature and pressure monitoring device for refrigeration system, save hardware cost and usage space.
Description of drawings
Fig. 1 is front elevational schematic of the present invention.
Fig. 2 is the schematic side view of Fig. 1.
Fig. 3 is the A-A generalized section of Fig. 1;
Fig. 4 is the front elevational schematic that mesolow of the present invention cuts off switch.
Fig. 5 is the generalized section of Fig. 4.
Fig. 6 is the front elevational schematic of refrigeration controler among the present invention.
Fig. 7 is the front elevational schematic that mesolow of the present invention cuts off switch and refrigeration controler connecting circuit.
Fig. 8 is the schematic side view that mesolow of the present invention cuts off switch and refrigeration controler connecting circuit.
Among the figure: 1; unit head, 2; valve body, 3; locating hole; 4; set screw, 5; low pressure is cut off switch, 6; refrigeration controler; 7; signal wire socket, 8; low pressure shutoff signal line, 10; the compressor connector; 11; the condenser connector, 12; evaporimeter gaseous state end connector, 13; the liquid end of evaporimeter connector; 14; drive link; 15; the spring ball pad, 16; regulating spring, 20; the switching line joint; 21; switch spring; 22; barrier film, 23; seal washer, 24; the switch protection cover; 25; the terminal protecting cover; 26; the barrier film back-up ring, 27; contact pad, 30; the refrigerant temperature monitor stand; 31; temperature sensor; 32; the temperature signal line, 33; fixed screw, 34; the holding wire protective sleeve
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Such as Fig. 1, Fig. 2, Fig. 7, shown in Figure 8; this device comprises the cold-producing medium throttling arrangement; low pressure is installed above valve body 2 one sides of cold-producing medium throttling arrangement cuts off switch 5; valve body 2 one side-lowers are installed refrigeration controler 6; refrigeration controler 6 belows connect signal wire socket 7 by holding wire protective sleeve 34; low pressure is cut off switch 5 and is connected refrigeration controler 6 by a low pressure shutoff signal line 8, and low pressure is cut off switch 5 and connected signal wire socket 7 by another root low pressure shutoff signal line 8.
Such as Fig. 4, shown in Figure 5; described low pressure is cut off switch 5 and is fixed on the valve body 2 by switch protection cover 24; switch protection cover 24 splicing ear protective covers 25; switch protection cover 24 installed inside have barrier film 22; between barrier film 22 and the switch protection cover 24 seal washer 23 is arranged; barrier film back-up ring 26 is installed in seal washer 23 outsides; barrier film 22 outsides connect contact pad 27; barrier film back-up ring 26 is with contact pad 27 contacts; there is switch spring 21 in contact pad 27 outsides; switch spring 21 is between contact pad 27 and terminal protecting cover 25, and terminal protecting cover 25 interior centre bits are equipped with switching line joint 20.Low pressure cut-out switch 5 monitors the compressor admission pressure and crosses when hanging down, and sends the low-voltage variation signal to operating system by low pressure shutoff signal line 8.
As shown in Figure 6, described refrigeration controler 6 main parts are cryogenic temperature monitor stands 30, cryogenic temperature monitor stand 30 is fixed on the valve body 2 by fixed screw 33, with monitor stand 30 upper sides of fixed screw 33 homonymies temperature sensor 31 is installed, two temperature signal lines 32 of refrigeration controler support 30 belows are connected with signal wire socket 7.Refrigerant temperature in the liquid end of the refrigeration controler 6 monitoring evaporimeters connectors 13 is sent to signal wire socket 7 with temperature signal by two temperature signal lines 32, by signal wire socket 7 signal is passed to operating system at last.
As shown in Figure 3, described cold-producing medium throttling arrangement, its valve body 2 tops are connected with unit head 1, top, valve body 2 one sides has compressor connector 10, below, valve body 2 one sides has condenser connector 11, between compressor connector 10 and the condenser connector 11 locating hole 3 is arranged, top, valve body 2 another sides has evaporimeter gaseous state end connector 12, below, valve body 2 another sides has the liquid end of evaporimeter connector 13, drive link 14 perpendicular to unit head 1 is installed in valve body 2 centre bores, drive link 14 upper ends connect unit head 1, linking springs ball pad 15 behind the valve body 2 lower end apertures is passed in drive link 14 lower ends, spring ball pad 15 regulating spring 16 one ends interior with being installed in valve body 2 lower end macropores contact, and the other end of regulating spring 16 is installed in set screw 4 holes; Evaporimeter gaseous state end connector 12 is communicated with compressor connector 10 through valve body 2 centre bores, the liquid end of evaporimeter connector 13 is communicated with condenser connector 11 through valve body 2 centre bores, the liquid end of evaporimeter connector 13 axis are positioned at above condenser connector 11 axis, the gaseous state low pressure refrigerant enters compressor compresses by compressor connector 10 and becomes the gaseous state high-pressure refrigerant, the gaseous state high-pressure refrigerant becomes liquid low pressure refrigerant by condenser condenses, enter throttling arrangement by condenser connector 11, liquid low pressure refrigerant enters evaporimeter by the liquid end of evaporimeter connector 13, become the gaseous state low pressure refrigerant by the heat absorption of evaporimeter refrigeration, the gaseous state low pressure refrigerant enters evaporimeter gaseous state end connector 12, enters compressor by compressor connector 10 again and repeats circularly cooling.
Claims (4)
1. cold-producing medium throttling arrangement with temperature, pressure monitoring function, comprise the cold-producing medium throttling arrangement, it is characterized in that: in valve body (2) the one sides top of cold-producing medium throttling arrangement low pressure is installed and cuts off switch (5), valve body (2) one side-lowers are installed refrigeration controler (6), refrigeration controler (6) below connects signal wire socket (7), low pressure is cut off switch (5) and is connected refrigeration controler (6) by a low pressure shutoff signal line (8), and low pressure is cut off switch (5) and connected signal wire socket (7) by another root low pressure shutoff signal line (8).
2. a kind of band temperature according to claim 1; the cold-producing medium throttling arrangement of pressure monitoring function; it is characterized in that: described low pressure is cut off switch (5) and is fixed on the valve body (2) by switch protection cover (24); switch protection cover (24) splicing ear protective cover (25); switch protection cover (24) installed inside has barrier film (22); between barrier film (22) and the switch protection cover (24) seal washer (23) is arranged; barrier film back-up ring (26) is installed in seal washer (23) outside; barrier film (22) outside connects contact pad (27); the same contact pad of barrier film back-up ring (26) (27) contact; there is switch spring (21) in contact pad (27) outside; switch spring (21) is positioned between contact pad (27) and the terminal protecting cover (25), and the interior centre bit of terminal protecting cover (25) is equipped with switching line joint (20).
3. a kind of cold-producing medium throttling arrangement with temperature, pressure monitoring function according to claim 1, it is characterized in that: described refrigeration controler (6) main part is cryogenic temperature monitor stand (30), cryogenic temperature monitor stand (30) is fixed on the valve body (2) by fixed screw (33), with monitor stand (30) upper side of fixed screw (33) homonymy temperature sensor (31) is installed, two temperature signal lines (32) of refrigeration controler support (30) below are connected with signal wire socket (7).
4. a kind of band temperature according to claim 1, the cold-producing medium throttling arrangement of pressure monitoring function, it is characterized in that: described cold-producing medium throttling arrangement, its valve body (2) top is connected with unit head (1), top, valve body (2) one sides has compressor connector (10), below, valve body (2) one sides has condenser connector (11), between compressor connector (10) and the condenser connector (11) locating hole (3) is arranged, top, valve body (2) another side has evaporimeter gaseous state end connector (12), below, valve body (2) another side has the liquid end of evaporimeter connector (13), drive link (14) perpendicular to unit head (1) is installed in valve body (2) centre bore, drive link (14) upper end connects unit head (1), linking springs ball pad (15) behind the aperture of valve body (2) lower end is passed in drive link (14) lower end, spring ball pad (15) regulating spring (16) one ends interior with being installed in valve body (2) lower end macropore contact, the other end of regulating spring (16) is installed in set screw (4) hole, evaporimeter gaseous state end connector (12) is communicated with compressor connector (10) through valve body (2) centre bore, evaporimeter liquid end connector (13) is communicated with condenser connector (11) through valve body (2) centre bore, and the liquid end of evaporimeter connector (13) axis is positioned at condenser connector (11) above the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310059973.8A CN103075849B (en) | 2013-02-26 | 2013-02-26 | Refrigerant throttling device with temperature and pressure monitoring function |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310059973.8A CN103075849B (en) | 2013-02-26 | 2013-02-26 | Refrigerant throttling device with temperature and pressure monitoring function |
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| CN103075849A true CN103075849A (en) | 2013-05-01 |
| CN103075849B CN103075849B (en) | 2014-11-19 |
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| CN201310059973.8A Active CN103075849B (en) | 2013-02-26 | 2013-02-26 | Refrigerant throttling device with temperature and pressure monitoring function |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB639710A (en) * | 1947-11-07 | 1950-07-05 | J & E Hall Ltd | Improvements in apparatus for the control of expansion valves of refrigerators |
| JPH02154955A (en) * | 1988-12-02 | 1990-06-14 | Nippondenso Co Ltd | Automatic expansion valve for refrigerating plant |
| CN1123892A (en) * | 1994-11-17 | 1996-06-05 | 株式会社不二工机制作所 | Expension valve |
| JP2001050422A (en) * | 1999-08-05 | 2001-02-23 | Nippon Soken Inc | Expansion valve for air conditioner |
| JP2010127555A (en) * | 2008-11-28 | 2010-06-10 | Fuji Koki Corp | Expansion valve and refrigerating cycle |
| CN203116374U (en) * | 2013-02-26 | 2013-08-07 | 浙江新劲空调设备有限公司 | Refrigerant throttling device with function of monitoring temperature and pressure |
-
2013
- 2013-02-26 CN CN201310059973.8A patent/CN103075849B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB639710A (en) * | 1947-11-07 | 1950-07-05 | J & E Hall Ltd | Improvements in apparatus for the control of expansion valves of refrigerators |
| JPH02154955A (en) * | 1988-12-02 | 1990-06-14 | Nippondenso Co Ltd | Automatic expansion valve for refrigerating plant |
| JP2586426B2 (en) * | 1988-12-02 | 1997-02-26 | 日本電装株式会社 | Automatic expansion valve for refrigeration equipment |
| CN1123892A (en) * | 1994-11-17 | 1996-06-05 | 株式会社不二工机制作所 | Expension valve |
| JP2001050422A (en) * | 1999-08-05 | 2001-02-23 | Nippon Soken Inc | Expansion valve for air conditioner |
| JP2010127555A (en) * | 2008-11-28 | 2010-06-10 | Fuji Koki Corp | Expansion valve and refrigerating cycle |
| CN203116374U (en) * | 2013-02-26 | 2013-08-07 | 浙江新劲空调设备有限公司 | Refrigerant throttling device with function of monitoring temperature and pressure |
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| Publication number | Publication date |
|---|---|
| CN103075849B (en) | 2014-11-19 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Refrigerant throttling device with temperature and pressure monitoring function Effective date of registration: 20230116 Granted publication date: 20141119 Pledgee: Longquan Branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG XINJING AIR CONDITIONING EQUIPMENT CO.,LTD. Registration number: Y2023330000200 |
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Date of cancellation: 20230615 Granted publication date: 20141119 Pledgee: Longquan Branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG XINJING AIR CONDITIONING EQUIPMENT CO.,LTD. Registration number: Y2023330000200 |
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| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Refrigerant throttling device with temperature and pressure monitoring function Effective date of registration: 20230627 Granted publication date: 20141119 Pledgee: Longquan Branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG XINJING AIR CONDITIONING EQUIPMENT CO.,LTD. Registration number: Y2023980045873 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |