CN103075849B - 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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- CN103075849B CN103075849B CN201310059973.8A CN201310059973A CN103075849B CN 103075849 B CN103075849 B CN 103075849B CN 201310059973 A CN201310059973 A CN 201310059973A CN 103075849 B CN103075849 B CN 103075849B
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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 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 be called " the four large parts " of refrigeration system in refrigeration system, it is one of requisite element in 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.There is not compressor air inlet low-voltage variation function and temperature-monitoring function in existing throttle mechanism; 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; actual monitoring data are also not accurate enough, and compressor fails to shut down and cause evaporimeter frosting, the rapid drawdown of compressor life-span even to damage in time.Therefore 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; the automatic tripping protection of energy, saving refrigeration system hardware cost and usage space when accurately monitoring refrigerant temperature and compressor air inlet refrigerant pressure are too low.
The technical solution used in the present invention is:
The present invention includes cold-producing medium throttling arrangement, low pressure is installed above valve body one side of cold-producing medium throttling arrangement and cuts off switch, valve body one side-lower is installed refrigeration controler, 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 valve body by switch protection cover; switch protection cover splicing ear protective cover; switch protection cover inner side is provided with barrier film; between barrier film and switch protection cover, have seal washer, barrier film back-up ring is installed in seal washer outside, and barrier film outside connects contact pad; barrier film back-up ring contacts with contact pad; there is switch spring in contact pad outside, and switch spring is between contact pad and terminal protecting cover, and in terminal protecting cover, centre bit is equipped with switching line joint.
Described refrigeration controler main part is cryogenic temperature monitor stand, cryogenic temperature monitor stand is fixed on 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, valve body one top, side has compressor connector, valve body one below, side has condenser connector, between compressor connector and condenser connector, there is locating hole, 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 valve body centre bore, drive link upper end connects unit head, drive link lower end is through linking springs ball pad after valve body lower end aperture, spring ball pad contacts with the regulating spring one end in being arranged on valve body lower end macropore, the other end of regulating spring is arranged in set screw hole, evaporimeter gaseous state end connector is communicated with compressor connector through valve body centre bore, and the liquid end of evaporimeter connector is communicated with condenser connector through valve body centre bore, and the liquid end of evaporimeter connector axis is positioned at above condenser connector axis.
The beneficial effect that the present invention has is:
1) the present invention has overcome directly monitoring refrigerant temperature and the compressor admission pressure problem of tripping protection automatically when too low of existing throttling arrangement.
2), for refrigeration system is saved extra temperature and pressure monitoring device, save hardware cost and usage space.
Accompanying drawing explanation
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 in 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.
In 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, compressor connector, 11, condenser connector, 12, evaporimeter gaseous state end connector, 13, the liquid end of evaporimeter connector, 14, drive link, 15, spring ball pad, 16, regulating spring, 20, switching line joint, 21, switch spring, 22, barrier film, 23, seal washer, 24, switch protection cover, 25, terminal protecting cover, 26, barrier film back-up ring, 27, contact pad, 30, refrigerant temperature monitor stand, 31, temperature sensor, 32, temperature signal line, 33, fixed screw, 34, holding wire protective sleeve
The specific embodiment
Below in conjunction with drawings and Examples, the invention will be further described.
As shown in Figure 1, Figure 2, shown in Fig. 7, Fig. 8; this device comprises cold-producing medium throttling arrangement; low pressure is installed above valve body 2 one sides of cold-producing medium throttling arrangement and 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.
As Fig. 4, shown in Fig. 5, described low pressure is cut off switch 5 and is fixed on valve body 2 by switch protection cover 24, switch protection cover 24 splicing ear protective covers 25, switch protection cover 24 inner sides are provided with barrier film 22, between barrier film 22 and switch protection cover 24, there is seal washer 23, 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, the interior centre bit of terminal protecting cover 25 is equipped with switching line joint 20.Low pressure is cut off switch 5 and is monitored compressor admission pressure when too low, by low pressure shutoff signal line 8, sends low-voltage variation signal to operating system.
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 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 refrigeration controler 6 monitoring evaporimeter connector 13, is sent to signal wire socket 7 by temperature signal by two temperature signal lines 32, finally by signal wire socket 7, signal is passed to operating system.
As shown in Figure 3, described cold-producing medium throttling arrangement, its valve body 2 tops are connected with unit head 1, valve body 2 one tops, side have compressor connector 10, valve body 2 one belows, side have condenser connector 11, between compressor connector 10 and condenser connector 11, there is locating hole 3, valve body 2 tops, another side have evaporimeter gaseous state end connector 12, valve body 2 belows, another side have 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, drive link 14 lower ends are through linking springs ball pad 15 after valve body 2 lower end apertures, spring ball pad 15 contacts with regulating spring 16 one end in being arranged on valve body 2 lower end macropores, the other end of regulating spring 16 is arranged 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, gaseous state low pressure refrigerant enters compressor compresses by compressor connector 10 and becomes gaseous state high-pressure refrigerant, gaseous state high-pressure refrigerant becomes liquid low pressure refrigerant by condenser condenses, by condenser connector 11, enter throttling arrangement, liquid low pressure refrigerant enters evaporimeter by the liquid end of evaporimeter connector 13, by evaporimeter, freeze to absorb heat and become gaseous state low pressure refrigerant, gaseous state low pressure refrigerant enters evaporimeter gaseous state end connector 12, by compressor connector 10, enter compressor again and repeat circularly cooling.
Claims (3)
1. the cold-producing medium throttling arrangement with temperature, pressure monitoring function, comprise cold-producing medium throttling arrangement, it is characterized in that: in valve body (2) the one side tops 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);
Described low pressure is cut off switch (5) and is fixed on valve body (2) by switch protection cover (24), switch protection cover (24) splicing ear protective cover (25), switch protection cover (24) inner side is provided with barrier film (22), between barrier film (22) and switch protection cover (24), there is seal washer (23), 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 terminal protecting cover (25), the interior centre bit of terminal protecting cover (25) is equipped with switching line joint (20).
2. 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 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).
3. 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), valve body (2) one tops, side have compressor connector (10), valve body (2) one belows, side have condenser connector (11), between compressor connector (10) and condenser connector (11), there is locating hole (3), 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), drive link (14) lower end is through linking springs ball pad (15) after the aperture of valve body (2) lower end, spring ball pad (15) contacts with regulating spring (16) one end in being arranged on valve body (2) lower end macropore, the other end of regulating spring (16) is arranged 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, the liquid end of evaporimeter connector (13) axis is positioned at condenser connector (11) above axis.
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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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| Application Number | Priority Date | Filing Date | Title |
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| CN201310059973.8A CN103075849B (en) | 2013-02-26 | 2013-02-26 | Refrigerant throttling device with temperature and pressure monitoring function |
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| CN103075849A CN103075849A (en) | 2013-05-01 |
| CN103075849B true CN103075849B (en) | 2014-11-19 |
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Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 | 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 |
| JP2586426B2 (en) * | 1988-12-02 | 1997-02-26 | 日本電装株式会社 | Automatic expansion valve for refrigeration equipment |
| JP3209868B2 (en) * | 1994-11-17 | 2001-09-17 | 株式会社不二工機 | Expansion valve |
| JP3843652B2 (en) * | 1999-08-05 | 2006-11-08 | 株式会社日本自動車部品総合研究所 | Expansion valve for air conditioner |
| JP5256006B2 (en) * | 2008-11-28 | 2013-08-07 | 株式会社不二工機 | Expansion valve and refrigeration cycle |
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- 2013-02-26 CN CN201310059973.8A patent/CN103075849B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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| CN103075849A (en) | 2013-05-01 |
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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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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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