CN114542763A - CO with ball valve switch2Air conditioning unit pipeline pressure measuring device - Google Patents
CO with ball valve switch2Air conditioning unit pipeline pressure measuring device Download PDFInfo
- Publication number
- CN114542763A CN114542763A CN202210104642.0A CN202210104642A CN114542763A CN 114542763 A CN114542763 A CN 114542763A CN 202210104642 A CN202210104642 A CN 202210104642A CN 114542763 A CN114542763 A CN 114542763A
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- CN
- China
- Prior art keywords
- pressure
- ball valve
- flow passage
- mounting hole
- conditioning unit
- 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.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/087—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
- F16K11/0873—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K31/00—Actuating devices; Operating means; Releasing devices
- F16K31/44—Mechanical actuating means
- F16K31/60—Handles
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K37/00—Special means in or on valves or other cut-off apparatus for indicating or recording operation thereof, or for enabling an alarm to be given
- F16K37/0008—Mechanical means
- F16K37/0016—Mechanical means having a graduated scale
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
- Safety Valves (AREA)
Abstract
The invention belongs to the technical field of air conditioners, and provides CO with a ball valve switch2Air conditioning unit pipeline pressure equipment device. The device comprises a valve rod, a pressure sampling pipe, a plug, a limiter, a pressure measuring element mounting hole, two ball valves with openings arranged in a direction of 90 degrees, a pressure sampling flow channel and a pressure relief flow channel; the rotation of the limiting stopper enables the two ball valves to rotate simultaneously, and when the pressure taking flow passage is opened, the pressure relief flow passage can be closed; when the pressure taking flow passage is closed, the pressure relief flow passage can be opened. The ball valve in the pressure taking device adopts a double-acting type, so that the pressure taking cavity can be isolated from the main pipeline and the pressure relief is balanced at the same time. Not only saves space, but also reduces unnecessary welding openings; valve rod position realizes valve alignment by arranging a limiterAnd controlling the rotation angle of the rod.
Description
Technical Field
The invention relates to the technical field of air conditioners, in particular to a ball valveCO of switch2Air conditioning unit pipeline pressure equipment device.
Background
In the prior art, in order to monitor the high-low pressure condition of the refrigerant in the pipeline, a pressure sampling pipe is often designed in the pipeline, and then a high-low pressure switch and a high-low pressure sensor are connected at the pressure sampling pipe by a pressure sampling device. The traditional pressure taking device and the pipeline are connected in a welded mode and cannot be detached, so that the difficulty of maintaining the high-low pressure detection element in the future is increased. If a stop valve is added at the front end of the pressure taking device, at least two welded junctions are added in the pipeline, so that CO with higher pipeline pressure is reduced2The air-conditioning unit has the sealing reliability.
Disclosure of Invention
The invention aims to solve the problems and the defects, and realizes the isolation of the pressure taking cavity from the air conditioning pipeline by embedding a double-acting ball valve at the front end in the pressure taking device. And after the pressure measuring element is maintained, the pressure measuring device is connected into the pipeline again.
The technical scheme of the invention is as follows: CO with ball valve switch2The air conditioning unit pipeline pressure taking device comprises a pressure taking pipe 1, a shell 2, a limiter 3, a load cell mounting hole a4, a load cell mounting hole b5, a mounting seat 6, a plug 7, a limiting slideway 8, a valve rod 9, an upper end cover 10, an upper valve seat 11, a valve seat 12, a large ball valve 13, a small ball valve 14, a pressure taking flow channel 15 and a pressure relief flow channel 16;
the shell 2 is a cuboid; the left side and the right side of the shell 2 are both welded with mounting seats 6, the front end of the shell 2 is welded with a pressure sampling pipe 1 and a plug 7 is mounted; the shell 2 is provided with a limiting slide way 8, a load cell mounting hole a4 and a load cell mounting hole b 5; a pressure taking flow passage 15 and a pressure relief flow passage 16 are arranged in the shell 2, one end of the pressure taking flow passage 15 is connected with the pressure taking pipe 1, and one end of the pressure relief flow passage 16 is sealed by a plug 7; the load cell mounting hole a4 and the load cell mounting hole b5 are both communicated with the pressure taking flow passage 15 and the pressure relief flow passage 16; chamfer sealing grooves are arranged on the load cell mounting hole a4 and the load cell mounting hole b5, so that the sealing effect when a load cell is mounted is ensured;
the limiting slide way 8 is a fan-shaped annular groove, the circle center of the limiting slide way is positioned on the shell 2, the limiting device 3 is arranged on the shell, and one end of the limiting device 3 slides in the limiting slide way 8; a character indication is arranged near the limiting slide way 8; the valve rod 9, the limiter 3, the upper end cover 10, the upper valve seat 11, the valve seat 12, the big ball valve 13 and the small ball valve 14 are assembled in sequence; the big ball valve 13 is arranged on the pressure taking flow passage 15, and the small ball valve 14 is arranged on the pressure relief flow passage 16; the opening directions of the large ball valve 13 and the small ball valve 14 are staggered by 90 degrees and assembled; the stopper 3 controls the large ball valve 13 and the small ball valve 14 to rotate simultaneously, and when the pressure taking flow passage 15 is opened, the pressure relief flow passage 16 is closed. When the pressure taking flow passage 15 is closed, the pressure relief flow passage 16 is opened. The upper end cap 10, the upper valve seat 11 and the valve seat 12 function to fix and seal the ball valve, respectively.
The upper valve seat 11 and the valve seat 12 are made of carbon reinforced polytetrafluoroethylene.
The mounting seat 6 is made of stainless steel.
The plug 7 is made of stainless steel, and prevents impurities from entering the pressure relief runner 16 in normal use.
The invention has the beneficial effects that:
(1) the pressure taking element can be detached at any time and accessed at any time, so that the influence on the main pipeline is reduced to the maximum extent.
(2) The ball valve embedded in the pressure measuring device has small local resistance, and the inlet and the outlet of the pressure measuring device are in the most appropriate conical design, so that the internal turbulence phenomenon of the pressure measuring device is eliminated to the greatest extent, the pressure drop is reduced, and the accuracy of pressure data acquisition is improved.
(3) The ball valve in the pressure taking device adopts a double-acting type, so that the pressure taking cavity can be isolated from the main pipeline and the pressure relief is balanced at the same time. Not only saves space, but also reduces unnecessary welding openings.
(4) The sealing valve seat at the ball valve adopts carbon reinforced PTFE (polytetrafluoroethylene), thereby ensuring CO2This complete sealing of the high-pressure line.
(5) The valve rod realizes the control of the rotation angle of the valve rod by arranging a limiter.
Drawings
FIG. 1 is a schematic diagram of the general structure of the present invention;
FIG. 2 is an isometric cross-sectional view of the present invention;
FIG. 3 is a cross-sectional view of the normal pipeline access state of the present invention with the large ball valve open and the pressure tapping element;
FIG. 4 is a sectional view of the closed pressure tapping device with the large ball valve removed;
in the figure, 1-a pressure sampling pipe, 2-a shell, 3-a limiter, 4-a load cell mounting hole a, 5-a load cell mounting hole b, 6-a mounting seat, 7-a plug, 8-a limiting slideway, 9-a valve rod, 10-an upper end cover, 11-an upper valve seat, 12-a valve seat, 13-a large ball valve, 14-a small ball valve, 15-a pressure sampling flow channel and 16-a pressure relief flow channel.
Detailed Description
CO based on ball valve switch2The air conditioning unit pipeline pressure measuring device comprises the following specific operation processes:
1. when the air conditioning unit normally works, the pressure measuring elements are arranged on the load cell mounting hole a4 and the load cell mounting hole b 5. The pressure measuring cell is screwed to the load cell mounting hole a4 and the load cell mounting hole b5, and is sealed with a seal ring. The stopper 3 is shifted to the ON position by a spanner, the big ball valve 13 is opened at the moment, and the small ball valve 14 is closed. The pressure measuring element normally reads the pressure parameter in the pipeline through the pressure measuring flow passage 15, and the pressure relief flow passage 16 is in a closed state, so that the pipeline is prevented from leaking.
2. When the pressure tapping element needs to be overhauled, the plug 7 is removed, and the limiter 3 is shifted to the OFF position by using a wrench. At this time, the large ball valve 13 is closed and the small ball valve 14 is opened. When the pressure taking flow passage 15 is closed, the pressure relief flow passage 16 is opened, so that the pressure in the pressure taking cavity is balanced with the external atmospheric pressure. The pressure tapping element can then be removed from the pressure tapping device for replacement.
3. After the maintenance is finished, two operation modes can be adopted before the pressure taking element is connected into the pipeline again.
3.1 No leakage of refrigerant in the piping
And vacuumizing the interior of the pressure taking device from the outer interface of the preset pressure relief flow channel 16, shifting the limiter 3 to an ON position after the vacuumizing operation is completed, opening the large ball valve 13 and closing the small ball valve 14.
3.2 a small amount of refrigerant existing in the pipeline is allowed to leak.
The stopper 3 is shifted to be between OFF and ON, the pressure taking flow channel 15 and the pressure relief flow channel 16 are both in a half-open state at the moment, and air in the pressure taking cavity is exhausted by using a small amount of leaked refrigerants. The stopper 3 is then fully toggled to the ON position.
4. The pressure relief flow passage 16 is externally provided with a plug 7 to prevent foreign matters from entering the flow passage.
The above description is only illustrative of the preferred embodiments of the present invention and is not intended to be exhaustive or exhaustive. All other embodiments of the invention that can be made by one skilled in the art without inventive step within the spirit and principle of the present invention shall be included within the scope of the present invention.
Claims (5)
1. CO with ball valve switch2The pipeline pressure measuring device of the air conditioning unit is characterized in that the CO with the ball valve switch2The air conditioning unit pipeline pressure measuring device comprises a pressure measuring pipe (1), a shell (2), a limiting stopper (3), a pressure measuring element mounting hole a (4), a pressure measuring element mounting hole b (5), a mounting seat (6), a plug (7), a limiting slide way (8), a valve rod (9), an upper end cover (10), an upper valve seat (11), a valve seat (12), a large ball valve (13), a small ball valve (14), a pressure measuring flow passage (15) and a pressure relief flow passage (16);
the shell (2) is cuboid; the left side and the right side of the shell (2) are welded with mounting seats (6), the front end of the shell (2) is welded with a pressure sampling pipe (1) and is provided with a plug (7); a limiting slide way (8), a load cell mounting hole a (4) and a load cell mounting hole b (5) are arranged on the shell (2); a pressure taking flow channel (15) and a pressure relief flow channel (16) are arranged in the shell (2), one end of the pressure taking flow channel (15) is connected with the pressure taking pipe (1), and one end of the pressure relief flow channel (16) is sealed through a plug (7); the load cell mounting hole a (4) and the load cell mounting hole b (5) are communicated with the pressure taking flow channel (15) and the pressure relief flow channel (16); chamfer sealing grooves are arranged on the load cell mounting hole a (4) and the load cell mounting hole b (5) to ensure the sealing function when a load cell is mounted;
the limiting slide way (8) is a fan-shaped annular groove, the circle center of the limiting slide way is positioned on the shell (2) and is provided with a limiter (3), and one end of the limiter (3) slides in the limiting slide way (8); the valve rod (9), the limiter (3), the upper end cover (10), the upper valve seat (11), the valve seat (12), the big ball valve (13) and the small ball valve (14) are assembled in sequence; the large ball valve (13) is arranged on the pressure taking flow passage (15), and the small ball valve (14) is arranged on the pressure relief flow passage (16); the opening directions of the large ball valve (13) and the small ball valve (14) are staggered by 90 degrees and assembled; the stopper (3) controls the large ball valve (13) and the small ball valve (14) to rotate simultaneously; the upper end cover (10), the upper valve seat (11) and the valve seat (12) respectively play a role in fixing and sealing the ball valve.
2. CO with ball valve switch of claim 12The air conditioning unit pipeline pressure device is characterized in that the upper valve seat (11) and the valve seat (12) are made of carbon reinforced polytetrafluoroethylene.
3. CO with ball valve switch according to claim 1 or 22The air conditioning unit pipeline pressure device is characterized in that the mounting seat (6) is made of stainless steel.
4. CO with ball valve switch according to claim 1 or 22The air conditioning unit pipeline pressure device is characterized in that the plug (7) is made of stainless steel materials, and impurities are prevented from entering a pressure relief flow passage (16) in normal use.
5. CO with ball valve switch of claim 32The air conditioning unit pipeline pressure device is characterized in that the plug (7) is made of stainless steel materials, and impurities are prevented from entering a pressure relief flow passage (16) in normal use.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210104642.0A CN114542763B (en) | 2022-01-28 | 2022-01-28 | CO with ball valve switch2Air conditioning unit pipeline pressure measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210104642.0A CN114542763B (en) | 2022-01-28 | 2022-01-28 | CO with ball valve switch2Air conditioning unit pipeline pressure measuring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114542763A true CN114542763A (en) | 2022-05-27 |
| CN114542763B CN114542763B (en) | 2022-11-01 |
Family
ID=81673366
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210104642.0A Active CN114542763B (en) | 2022-01-28 | 2022-01-28 | CO with ball valve switch2Air conditioning unit pipeline pressure measuring device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114542763B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1300576A2 (en) * | 2001-10-05 | 2003-04-09 | Circle Seal Controls, Inc. | Gaseous fuel distributor being used in a broad temperature and pressure range |
| CN202360866U (en) * | 2011-10-20 | 2012-08-01 | 昆山沅亨管阀件有限公司 | Pressure tapping ball valve |
| CN203297655U (en) * | 2013-05-23 | 2013-11-20 | 丽水欧意阀门有限公司 | Large-diameter sphere valve provided with connecting rod double sphere body assembly |
| CN206175711U (en) * | 2016-10-25 | 2017-05-17 | 欧维克集团有限公司 | Pair ball valve of online sample in area |
| CN109813488A (en) * | 2019-03-22 | 2019-05-28 | 江苏华海测控技术有限公司 | A kind of pressure obtaning device |
-
2022
- 2022-01-28 CN CN202210104642.0A patent/CN114542763B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1300576A2 (en) * | 2001-10-05 | 2003-04-09 | Circle Seal Controls, Inc. | Gaseous fuel distributor being used in a broad temperature and pressure range |
| CN202360866U (en) * | 2011-10-20 | 2012-08-01 | 昆山沅亨管阀件有限公司 | Pressure tapping ball valve |
| CN203297655U (en) * | 2013-05-23 | 2013-11-20 | 丽水欧意阀门有限公司 | Large-diameter sphere valve provided with connecting rod double sphere body assembly |
| CN206175711U (en) * | 2016-10-25 | 2017-05-17 | 欧维克集团有限公司 | Pair ball valve of online sample in area |
| CN109813488A (en) * | 2019-03-22 | 2019-05-28 | 江苏华海测控技术有限公司 | A kind of pressure obtaning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114542763B (en) | 2022-11-01 |
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