CN205209034U - Parallel bivalve throttling arrangement - Google Patents
Parallel bivalve throttling arrangement Download PDFInfo
- Publication number
- CN205209034U CN205209034U CN201521087524.5U CN201521087524U CN205209034U CN 205209034 U CN205209034 U CN 205209034U CN 201521087524 U CN201521087524 U CN 201521087524U CN 205209034 U CN205209034 U CN 205209034U
- Authority
- CN
- China
- Prior art keywords
- magnetic valve
- bivalve
- copper pipe
- heating power
- throttling arrangement
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn - After Issue
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- Compression-Type Refrigeration Machines With Reversible Cycles (AREA)
Abstract
The utility model provides a parallel bivalve throttling arrangement, including an import T type copper tee bend (1), a first reposition of redundant personnel copper pipe (2), one first solenoid valve (3), one first copper reducing union (4), the 1st thermostatic expansion valve (5), one first confluence copper pipe (6), an export T type copper tee bend (7), second reposition of redundant personnel copper pipe (8), one second solenoid valve (9), a second copper reducing union (10), the 2nd thermostatic expansion valve (11) and second confluence copper pipe (12), a serial communication port, establish ties before in import T type copper tee bend (1) and one hold to transfer solenoid valve (13), hold and transfer solenoid valve (13) and controller (14) the electricity in the unit to be connected, controller (14) are passed through, two relays (15) link to each other with first solenoid valve (3) and second solenoid valve (9) respectively. Bivalve throttling arrangement adopt parallelly connected structure, improved bivalve throttling arrangement's reliability.
Description
Technical field
The utility model relates to a kind of throttling arrangement, particularly the parallel bivalve throttling arrangement of one.
Background technology
In existing water chilling unit system, select the compressor of relatively large number sometimes.Now the single cold of single conventional thermodynamic expansion valve can not meet whole refrigeration system, and High cooling power heating power expansion valve is compared because cost is higher, electric expansion valve does not have price advantage.
Be on September 5th, 2012 in publication date, publication number is in the Chinese utility model patent of " CN202420047U ", provides a kind of two thermal expansion valve arrangement.This utility model can only adopt the heating power expansion valve of same model in parallel, and range of application is extensive not; And during operation at part load, unit can be caused to return liquid in a large number, be unfavorable for whole compressor application.
In view of above-mentioned defect, the utility model creator obtains the utility model finally through long research and practice.
Utility model content
The technical problems to be solved in the utility model is, provides a kind of throttling arrangement, realizes applied range, and the one parallel bivalve throttling arrangement that unit returns liquid in a large number does not occur during operation at part load.
For achieving the above object, the technical solution adopted in the utility model is, a kind of parallel bivalve throttling arrangement is provided, comprise the T-shaped copper threeway of an outlet, one first shunting copper pipe, one first magnetic valve, one first bronze medal reducing joint, one first heating power expansion valve, one first interflow copper pipe, the T-shaped copper threeway of one outlet, one second shunting copper pipe, one second magnetic valve, one second bronze medal reducing joint, one second heating power expansion valve and one second interflow copper pipe, it is characterized in that, an appearance of connecting before the T-shaped copper threeway of described import adjusts magnetic valve, described appearance adjusts magnetic valve to be electrically connected with the controller in unit, described controller passes through, two relays are connected with described second magnetic valve with described first magnetic valve respectively.
The beneficial effects of the utility model are compared with the prior art: bivalve throttling arrangement described in the utility model adopts parallel-connection structure, improve the reliability of described bivalve throttling arrangement, the energy is made to reach sufficient utilization, and for the model specification indefinite of two heating power expansion valves in parallel connection, expand the range of application of heating power expansion valve, during operation at part load simultaneously, unit also can not be caused to return liquid in a large number, do not affect the normal work of compressor.
Accompanying drawing explanation
Fig. 1 is the interface framework of parallel bivalve throttling arrangement in the utility model;
Fig. 2 is the structural representation of parallel bivalve throttling arrangement in the utility model.
Shown in figure: 1, the T-shaped copper threeway of import, the 2, first shunting copper pipe, the 3, first magnetic valve, 4, the first bronze medal reducing joint, the 5, first heating power expansion valve, the 6, first interflow copper pipe, 7, T-shaped copper threeway is exported, the 8, second shunting copper pipe, the 9, second magnetic valve, 10, the second bronze medal reducing joint, 11, the second heating power expansion valve, 12, second interflow copper pipe, 13, hold adjust magnetic valve, 14, controller, 15, relay.
Detailed description of the invention
Below in conjunction with accompanying drawing, to above-mentioned being described in more detail with other technical characteristic and advantage of the utility model.
Refer to shown in Fig. 1, Fig. 2, it is the structural representation of parallel bivalve throttling arrangement in the utility model, described bivalve throttling arrangement comprises the T-shaped copper threeway 1 of an outlet, one first shunting copper pipe 2, one first magnetic valve 3, one first bronze medal reducing joint 4, one first heating power expansion valve 5, one first interflow copper pipe 6, the T-shaped copper threeway 7 of one outlet, one second shunting copper pipe 8, one second magnetic valve 9, one second bronze medal reducing joint 10, one second heating power expansion valve 11 and one second interflow copper pipe 12, wherein, described first magnetic valve 3 is connected with described first heating power expansion valve 5, and described first magnetic valve 3 is as the starting switch of described first heating power expansion valve 5, when the coil in described first magnetic valve 3 obtains electric, namely the first magnetic valve 3 is opened, passage then between the T-shaped copper of import described in UNICOM threeway 1 and described first heating power expansion valve 5, described first heating power expansion valve 5 is impelled to exercise throttling work, described second magnetic valve 9 is connected with described second heating power expansion valve 11, and described second magnetic valve 9 is as the starting switch of described second heating power expansion valve 11, when the coil in described second magnetic valve 9 obtains electric, namely the second magnetic valve 9 is opened, passage then between the T-shaped copper of import described in UNICOM threeway 1 and described second heating power expansion valve 11, makes described second heating power expansion valve 11 exercise throttling work.
Described first shunting copper pipe 2, described first magnetic valve 3, described first bronze medal reducing joint 4, described first heating power expansion valve 5 and described first interflow copper pipe 6 join end to end, successively as the circulation passage of refrigerant liquid; Described second shunting copper pipe 8, described second magnetic valve 9, described second bronze medal reducing joint 10, described second heating power expansion valve 11 and described second interflow copper pipe 12 join end to end, successively as the circulation passage of refrigerant liquid in described two-step throttle unit 2.
An appearance of connecting before the T-shaped copper threeway 1 of described import adjusts magnetic valve 13, and described appearance adjusts magnetic valve 13 to be electrically connected with the controller 14 in unit, and described controller 14 passes through, and two relays 15 are connected with described second magnetic valve 9 with described first magnetic valve 3 respectively.
Generally, when compressor start, system loading is less, coil now in described first magnetic valve 3 obtains electric, and described first magnetic valve 3 is opened, and the coil in the second magnetic valve 9 must not be electric, be equivalent to system and only use a heating power expansion valve throttling, avoid unit to return liquid; When system loading exceedes 75% of rated load, the coil in described second magnetic valve 9 obtains electric, thus opens described second magnetic valve 9, makes the simultaneously throttling in parallel with described second heating power expansion valve 11 of described first heating power expansion valve 5, meets system requirements.
Logical overladen graded, realize stagewise conducting heating power expansion valve, when load is less, described first magnetic valve 3 is opened, described first heating power expansion valve 5 is impelled to work, when load exceedes 75% of rated load, described second magnetic valve 9 is opened, and impels described second heating power expansion valve 11 to work with described first heating power expansion valve 5 simultaneously; And described first heating power expansion valve 5 can be consistent with the model specification of described second heating power expansion valve 11, also can be inconsistent; When two heating power expansion valves work simultaneously, in the T-shaped copper threeway 4 of described outlet also can not there is refrigerant liquid convection phenomena in place.
Bivalve throttling arrangement described in the utility model adopts parallel-connection structure, improve the reliability of described bivalve throttling arrangement, the energy is made to reach sufficient utilization, and for the model specification indefinite of two heating power expansion valves in parallel connection, expand the range of application of heating power expansion valve, during operation at part load simultaneously, unit also can not be caused to return liquid in a large number, do not affect the normal work of compressor.
The foregoing is only preferred embodiment of the present utility model, is only illustrative for the utility model, and nonrestrictive.Those skilled in the art is understood, and can carry out many changes in the spirit and scope that the utility model claim limits to it, amendment, even equivalence, but all will fall in protection domain of the present utility model.
Claims (1)
1. a parallel bivalve throttling arrangement, comprise the T-shaped copper threeway (1) of an import, one first shunting copper pipe (2), one first magnetic valve (3), one first bronze medal reducing joint (4), one first heating power expansion valve (5), one first interflow copper pipe (6), the T-shaped copper threeway (7) of one outlet, one second shunting copper pipe (8), one second magnetic valve (9), one second bronze medal reducing joint (10), one second heating power expansion valve (11) and one second interflow copper pipe (12), it is characterized in that, before the T-shaped copper threeway (1) of described import, tune magnetic valve (13) is held in series connection one, described appearance adjusts magnetic valve (13) to be electrically connected with the controller (14) in unit, described controller (14) passes through, two relays (15) are connected with described second magnetic valve (9) with described first magnetic valve (3) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087524.5U CN205209034U (en) | 2015-12-23 | 2015-12-23 | Parallel bivalve throttling arrangement |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521087524.5U CN205209034U (en) | 2015-12-23 | 2015-12-23 | Parallel bivalve throttling arrangement |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205209034U true CN205209034U (en) | 2016-05-04 |
Family
ID=55846749
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521087524.5U Withdrawn - After Issue CN205209034U (en) | 2015-12-23 | 2015-12-23 | Parallel bivalve throttling arrangement |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205209034U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485981A (en) * | 2015-12-23 | 2016-04-13 | 宁波奥克斯电气股份有限公司 | Parallel type double-valve throttling device and control method |
-
2015
- 2015-12-23 CN CN201521087524.5U patent/CN205209034U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105485981A (en) * | 2015-12-23 | 2016-04-13 | 宁波奥克斯电气股份有限公司 | Parallel type double-valve throttling device and control method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160504 Effective date of abandoning: 20180918 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20160504 Effective date of abandoning: 20180918 |