CN2714914Y - Zero resistance slow open and close check valve - Google Patents
Zero resistance slow open and close check valve Download PDFInfo
- Publication number
- CN2714914Y CN2714914Y CN 200420075917 CN200420075917U CN2714914Y CN 2714914 Y CN2714914 Y CN 2714914Y CN 200420075917 CN200420075917 CN 200420075917 CN 200420075917 U CN200420075917 U CN 200420075917U CN 2714914 Y CN2714914 Y CN 2714914Y
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- valve
- unicom
- flap
- close
- utility
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Abstract
The utility model relates to a zero resistance slow open and close check valve; the inside of a valve body is provided with a closed control cavity consisting of the connection of a valve cover 5 and a separator 4. a spring diaphragm 6 divides a control cavity into an independent upper control cavity 16 and an independent lower control cavity 17. The upper end of a central shaft 10 is connected with the spring diaphragm 6 via a floating shaft 9, and the lower end of the central shaft 10 is connected with a linkage rod 21. The linkage rod 21 is fixedly connected with a valve flap 2 at the same time, and the seat 24 of the linkage rod is fixedly connected with the valve body 1. the valve flap 2 is movably connected with the linkage rod 24 via the shaft 12 of the valve flap. An external connection control system thereof includes control ducts 22, 23, a needle valve 13, a manual ball valve 19, a normally-open type solenoid valve 15, a normally-close type solenoid valve 14. The utility model has the beneficial effects of that firstly, the utility model can slowly open during the starting of the water pump; secondly, water resistance doesn't happen under normal operation; thirdly, the utility model can quickly close 90% during the stop of the pump or improper power failure and then slowly close; fourthly, the utility model can conduct non return. The utility model can replace electric valves, check valves, and the receiving device of a water hammer designed in prior mode, and energy consumption can be lowered greatly; the space usage of the device can be reduced greatly, and the utility model can run stably.
Description
Technical field
The utility model relates to valve technology field, particularly a kind of zero resistance slow open and close safety check.
Background technique
In the outlet port of water pump, safety check and water hammer take-up means generally should be installed, to prevent medium counter flow, water hammer is to the infringement of system when eliminating turn on pump and termination of pumping.The traditional design of exit of pump system such as Fig. 1, the purpose of this design is: 1. slow opening.Start water pump earlier, open mortor operated valve again, prevent the turn on pump water hammer; 2. Slow Close.Earlier mortor operated valve cuts out 90%, termination of pumping again is then with the mortor operated valve complete shut-down; 3. non-return.4. safety check cuts out suddenly and causes water hammer when preventing improper power failure, needs to install water hammer and receive device.The shortcoming of this traditional design is: peripheral complicated, need servovalves such as mortor operated valve, safety check, and energy consumption is big, the cost height, space hold is many, the operation easy break-down.
Summary of the invention
The purpose of this utility model provides a kind of multiple peripheral servo-valve, simple structure, reliable saved, little and the safety check that can slow open and close of resistance.
Described zero resistance slow open and close safety check, comprise by valve body 1, valve body and outer connected control system that flap 2 is formed, it is characterized in that: connect the sealing control chamber of forming by one by valve gap 5 and separator 4 in the valve body, elastic force diaphragm 6 is separated into this control chamber and independently controls epicoele 16 and independently control cavity of resorption 17, the upper end of central shaft 10 links to each other with elastic force diaphragm 6 through floating axle 9, the lower end of central shaft 10 is connected with connecting rod 21, connecting rod 21 is fixedlyed connected with flap 2 simultaneously, connecting rod base 24 is fixedlyed connected with valve body 1, and the flap 2 of control valve working state flexibly connects by flap axle 12 and connecting rod base 24.
Described outer connected control system comprises controlling plumbing fixtures 22,23, needle-valve 13, manual ball valve 19, normal-open electromagnetic valve 15, normal close type solenoid valve 14; Aforementioned control epicoele 16 and needle-valve 13 UNICOMs, control epicoele 16 simultaneously also with solenoid valve 15 through pipeline 23 UNICOMs; Aforementioned control cavity of resorption 17 and manual ball valve 19 are through pipeline 22 UNICOMs.
Floating axle 9 axially flexibly connects with central shaft 10, and central shaft 10 is in axial sliding connection through bearing 8 and separator 4.Elastic force diaphragm central authorities are fixed in the upper end of floating axle 9, in the chute that centering axle upper end in lower end is opened.The other end of needle-valve 13 and solenoid valve 14 UNICOMs, the other end of solenoid valve 14 and atmosphere UNICOM.
The MEDIA FLOW outlet is through pipeline UNICOM in y-type filter 18 and valve body for the other end of solenoid valve 15, and the MEDIA FLOW Inbound is through pipeline UNICOM in the other end of manual ball valve 19 and the valve body.
Working principle of the present utility model is such: the pressure medium between outer connected control system is imported and exported valve imports the waterpower control head, change the pressure difference of control epicoele 16 and control cavity of resorption 17, regulate the time that pressure reduction changes, thereby realize accurate control to valve state, three kinds of working staties of valve: the 1. opening process of valve: during starting mode of pump, solenoid valve 14,15 connect power supply simultaneously, solenoid valve 14 is opened, solenoid valve 15 cuts out, pressure medium enters control cavity of resorption 17 through the main valve import by controlling plumbing fixtures 22, promoting elastic force diaphragm 6 moves upward, control epicoele 16 is by needle-valve 13 and solenoid valve 14 pressure releases, because the actual internal area of needle-valve is less, control epicoele 16 pressure release speed are slower, thereby controlled the upwards speed of operation of elastic force diaphragm 6, the elastic force diaphragm slowly rises, flap 2 is slowly opened, the aperture of metering pin valve, the opening speed of may command valve.
2. valve wide open opens state: during the water pump proper functioning, elastic force diaphragm 6 is positioned at control epicoele 16 tops, and this moment, flap 2 was in full-gear, and the main valve runner is unimpeded fully, and runner does not have bending and reducing, the resistance of valve convection cell very little (accompanying drawing 4).
3. the state during valve closing 90%: shut down or improper powers failure moment when water pump, main valve clack 2 is closed rapidly under the effect of deadweight and backwater impact force, and linkage mechanism drives central shaft 10 and moves down, at this moment, solenoid valve 15 unlatchings, solenoid valve 14 cuts out.Backwater enters control epicoele 16 by controlling plumbing fixtures 23, the control cavity of resorption is then by controlling plumbing fixtures 22 pressure releases, because flap 2 is closed very fast, much larger than the descending speed of elastic force diaphragm 6, when flap 2 closes 90%, central shaft 10 " hangs " on floating axle 9 (accompanying drawing 6) by pin, elastic force diaphragm 6 has blocked the closing velocity of flap 2, therefore in moment of termination of pumping or power failure, valve can close 90% and not exclusively close rapidly, thereby prevents that water hammer from producing, after the elastic force diaphragm 6 descending a certain distances, flap 2 contract fullys, when elastic force diaphragm 6 came downwards to minimum point, elastic force diaphragm 6 applied an axial pressure for flap 2 by central shaft 10, avoided backwater to leak, regulate the aperture of manual ball valve 19, can set the time that flap 2 is closed.
The beneficial effects of the utility model are: 1, slowly open during starting mode of pump; Substantially anhydrous resistance when 2, water pump normally moves; 3, quick closedown 90%, Slow Close then when termination of pumping or improper power failure; 4, non-return.So mortor operated valve, safety check and water hammer that the utility model can replace in the traditional design receive device, and energy consumption reduces significantly, equipment occupation space significantly reduces, and the equipment autocontrol operation is stable, is specially adapted to industrial fields such as various pumping plants, oil, chemical industry, iron and steel and uses.
Description of drawings
Accompanying drawing 1 is the traditional design scheme of exit of pump system;
Accompanying drawing 2 is an exit of pump system design scheme behind the employing zero resistance slow open and close safety check;
Accompanying drawing 3 is zero resistance slow open and close check valve structure schematic representation;
Accompanying drawing 4 is zero resistance slow open and close safety check full-gear figure;
Accompanying drawing 5 is 90% phase diagram of zero resistance slow open and close closure of check ring;
Accompanying drawing 6 is floating axle and central shaft connecting mode figure.
Among the figure: 1-valve body, 2-flap, 3-land, 4-separator, 5-valve gap, 6-elastic force diaphragm, 7-diaphragm pressing plate, 8-bearing, 9-floating axle, 10-central shaft, 11-link pin, 12-flap axle, 13-needle-valve, 14-normal close type solenoid valve, 15-normal-open electromagnetic valve, 16-control epicoele, 17-control cavity of resorption, 18-Y type filter tap, 19,20-manual ball valve, 21-connecting rod, 22,23-controlling plumbing fixtures, 24-connecting rod base, 25-pressure gauge, the 26-water pump, the 27-water hammer receives device, the 28-safety check, the 29-mortor operated valve, the 30-service valve, the 31-pin.
Embodiment
The utility model is described in further detail to engage accompanying drawing below: connecting rod base 24 is fixedlyed connected with valve body 1 among Fig. 3, flap 2 flexibly connects through flap axle 12 and connecting rod base 24, flap 2 is also fixedlyed connected with connecting rod 21, control epicoele 16 and needle-valve 13 UNICOMs, the control epicoele also with normal-open electromagnetic valve 15 through controlling plumbing fixtures 23 UNICOMs, control cavity of resorption 17 is through controlling plumbing fixtures 22 and manual ball valve 19 UNICOMs.Elastic force diaphragm 6 is connected with floating axle 9, and floating axle 9 axially flexibly connects with central shaft 10, and central shaft 10 flexibly connects through link pin 11 with connecting rod 21.
Elastic force diaphragm central authorities are fixed in the upper end of floating axle 9, in the chute that centering axle upper end in lower end is opened (accompanying drawing 6 shows).The other end of needle-valve 13 and solenoid valve 14 UNICOMs, the other end of solenoid valve 14 and atmosphere UNICOM.
The MEDIA FLOW outlet is through pipeline UNICOM in y-type filter 18 and valve body for the other end of solenoid valve 15, and the MEDIA FLOW Inbound is through pipeline UNICOM in the other end of manual ball valve 19 and the valve body.
Its working procedure is such: the 1. opening process of valve: during starting mode of pump, solenoid valve 14,15 connect power supply simultaneously, solenoid valve 14 is opened, solenoid valve 15 cuts out, pressure medium enters control cavity of resorption 17 through the main valve import by controlling plumbing fixtures 22, promoting the elastic force diaphragm moves upward, control epicoele 16 is by needle-valve 13 and solenoid valve 14 pressure releases, because the actual internal area of needle-valve is less, control epicoele 16 pressure release speed are slower, thereby controlled the upwards speed of operation of elastic force diaphragm 6, the elastic force diaphragm slowly rises, flap 2 is slowly opened, the aperture of metering pin valve, the opening speed of may command valve.
2. valve wide open opens state: during the water pump proper functioning, elastic force diaphragm 6 is positioned at control epicoele 16 tops, and this moment, flap 2 was in full-gear, and the main valve runner is unimpeded fully, and runner does not have bending and reducing, the resistance of valve convection cell very little (accompanying drawing 4).
3. the state (accompanying drawing 5 shows) during valve closing 90%: when water pump is shut down or improper power failure moment; main valve clack 2 is closed rapidly under the effect of deadweight and backwater impact force, and linkage mechanism drives central shaft 10 and moves down, at this moment; solenoid valve 15 is opened, and solenoid valve 14 cuts out.Backwater enters control epicoele 16 by controlling plumbing fixtures 23, the control cavity of resorption is then by controlling plumbing fixtures 22 pressure releases, because flap 2 is closed very fast, much larger than the descending speed of elastic force diaphragm 6, when flap 2 closes 90%, central shaft 10 " hangs " on floating axle 9 (accompanying drawing 6 shows) by pin, elastic force diaphragm 6 has blocked the closing velocity of flap 2, therefore in the moment that stops speed or power failure, valve can close 90% and not exclusively close rapidly, thereby prevents that water hammer from producing, after the elastic force diaphragm 6 descending a certain distances, flap 2 contract fullys, when elastic force diaphragm 6 came downwards to minimum point, elastic force diaphragm 6 applied an axial pressure for flap 2 by central shaft 10, avoided backwater to leak, regulate the aperture of manual ball valve 19, can set the time that flap 2 is closed.
Claims (7)
1. one kind zero is hindered the slow open and close safety check, comprise by valve body (1), valve body that flap (2) is formed and outer connected control system, it is characterized in that: have one to connect the sealing control chamber of forming in the valve body by valve gap (5) and separator (4), elastic force diaphragm (6) is separated into this control chamber and independently controls epicoele (16) and independently control cavity of resorption (17), the upper end of central shaft (10) links to each other with elastic force diaphragm (6) through floating axle (9), the lower end of central shaft (10) and connecting rod (21) flexibly connect, connecting rod (21) is fixedlyed connected with flap (2) simultaneously, connecting rod base (24) is fixedlyed connected with valve body (1), and the flap of control valve working state (2) flexibly connects by flap axle (12) and connecting rod base (24).
2. zero resistance slow open and close safety check according to claim 1, it is characterized in that: described outer connected control system comprises controlling plumbing fixtures (22,23), needle-valve (13), manual ball valve (19), normal-open electromagnetic valve (15), normal close type solenoid valve (14); Aforementioned control epicoele (16) and needle-valve (13) UNICOM, control epicoele (16) simultaneously also with solenoid valve (15) through pipeline (23) UNICOM; Aforementioned control cavity of resorption (17) and manual ball valve (19) are through pipeline (22) UNICOM.
3. zero resistance slow open and close safety check according to claim 1, it is characterized in that: floating axle (9) axially flexibly connects with central shaft (10), and central shaft (10) is in axial sliding connection through bearing (8) and separator (4).
4. zero resistance slow open and close safety check according to claim 3, it is characterized in that: elastic force diaphragm central authorities are fixed in the upper end of floating axle (9), in the chute that centering axle upper end in lower end is opened.
5. zero resistance slow open and close safety check according to claim 1 and 2 is characterized in that: the other end of needle-valve (13) and solenoid valve (14) UNICOM, the other end of solenoid valve (14) and atmosphere UNICOM.
6. zero resistance slow open and close safety check according to claim 1 and 2, it is characterized in that: the MEDIA FLOW outlet is through pipeline UNICOM in y-type filter (18) and valve body for the other end of solenoid valve (15), and the MEDIA FLOW Inbound is through pipeline UNICOM in the other end of manual ball valve (19) and the valve body.
7. zero resistance slow open and close safety check according to claim 1 and 2, it is characterized in that: elastic force diaphragm (6) is provided with diaphragm pressing plate (7), pressure gauge (25) and manual ball valve (20) UNICOM and with valve body in medium flow into end through pipeline UNICOM.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075917 CN2714914Y (en) | 2004-07-08 | 2004-07-08 | Zero resistance slow open and close check valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420075917 CN2714914Y (en) | 2004-07-08 | 2004-07-08 | Zero resistance slow open and close check valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2714914Y true CN2714914Y (en) | 2005-08-03 |
Family
ID=34874352
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420075917 Expired - Fee Related CN2714914Y (en) | 2004-07-08 | 2004-07-08 | Zero resistance slow open and close check valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2714914Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852202A (en) * | 2010-06-07 | 2010-10-06 | 开维喜阀门集团有限公司 | Double-aperture adjustable slow-closure control valve for water pump |
| CN102966769A (en) * | 2012-12-13 | 2013-03-13 | 云南省电子工业研究所 | Direct one-way non-return solenoid valve |
| CN104235467A (en) * | 2013-06-18 | 2014-12-24 | 北京创洋森科科技发展有限公司 | Micro-electric wireless remote valve controller |
| CN111926132A (en) * | 2020-08-04 | 2020-11-13 | 鞍钢股份有限公司 | Method for rapidly judging damage of check valve of blast furnace water pump |
-
2004
- 2004-07-08 CN CN 200420075917 patent/CN2714914Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852202A (en) * | 2010-06-07 | 2010-10-06 | 开维喜阀门集团有限公司 | Double-aperture adjustable slow-closure control valve for water pump |
| CN101852202B (en) * | 2010-06-07 | 2012-08-15 | 开维喜阀门集团有限公司 | Double-aperture adjustable slow-closure control valve for water pump |
| CN102966769A (en) * | 2012-12-13 | 2013-03-13 | 云南省电子工业研究所 | Direct one-way non-return solenoid valve |
| CN104235467A (en) * | 2013-06-18 | 2014-12-24 | 北京创洋森科科技发展有限公司 | Micro-electric wireless remote valve controller |
| CN111926132A (en) * | 2020-08-04 | 2020-11-13 | 鞍钢股份有限公司 | Method for rapidly judging damage of check valve of blast furnace water pump |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |