CN201650709U - Hydraulic control valve - Google Patents

Hydraulic control valve Download PDF

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Publication number
CN201650709U
CN201650709U CN2010201822138U CN201020182213U CN201650709U CN 201650709 U CN201650709 U CN 201650709U CN 2010201822138 U CN2010201822138 U CN 2010201822138U CN 201020182213 U CN201020182213 U CN 201020182213U CN 201650709 U CN201650709 U CN 201650709U
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CN
China
Prior art keywords
valve
water
piston
sleeve
valve plate
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.)
Expired - Fee Related
Application number
CN2010201822138U
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Chinese (zh)
Inventor
王长春
吴进武
美乐苏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SHANGHAI EAST WELL VALVE CO Ltd
Original Assignee
SHANGHAI EAST WELL VALVE CO Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SHANGHAI EAST WELL VALVE CO Ltd filed Critical SHANGHAI EAST WELL VALVE CO Ltd
Priority to CN2010201822138U priority Critical patent/CN201650709U/en
Application granted granted Critical
Publication of CN201650709U publication Critical patent/CN201650709U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

A hydraulic control valve consists of a Y-shaped valve body, a valve seat, a valve cap, a sleeve, a valve rod and a main valve plate, wherein the main valve plate is arranged at an overflow port of a water inlet cavity and a water outlet cavity; an opening is formed in the middle of the valve body; the valve seat is fixed at the opening; the valve cap and the valve seat are mutually connected; the sleeve is arranged between the valve seat and the valve cap; the lower end of the valve rod extends into the valve body to be connected with the main valve plate after penetrating the valve cap; a piston is arranged in the sleeve and connected with the upper end of the valve rod; a first water outlet by-pass port is formed on the valve cap and communicated with the inner chamber of the sleeve above the piston; a first water inlet by-pass port is formed on the valve seat and communicated with the inner chamber of the sleeve below the piston; a second water inlet by-pass port is formed on the water inlet cavity; and a second water outlet by-pass port is formed on the water outlet cavity. In the utility model, the piston and the valve plate are connected with each other, partial pressure can be achieved through a by-pass pipe when the valve is opened and closed to eliminate water pressure impact, and a slow-closure valve plate is arranged on the lower side of the valve plate, so as to achieve steady valve closure and reduce pressure loss.

Description

Hydraulic control valve
Technical field:
The utility model relates to mechanical field, relates in particular to carry to be installed in the liquid pipeline system to eliminate the safety check that hydraulic pressure impacts on the pump discharge, and, particularly a kind of hydraulic control valve.
Background technique:
Carry in the pipe-line system of liquid at water pump, when starting mode of pump, require the pump discharge valve to close.After the pump startup operation is normal, opens valve and flow in the pipeline by liquid, the electric motor starting electric current that drives pump in the time of can guaranteeing pump startup like this is less, plays the not effect of overcurrent of protection motor.In the prior art, adorn an automatically controlled control valve in the pump discharge section, when termination of pumping, the pump discharge valve cuts out rapidly, cut-out liquid flows backwards, so just require also will adorn a safety check in the pump discharge section, but because when cutting off current, the inertia of current will produce water hammer (hydraulic pressure impact), the pressure that water hammer produces usually is the several times of normal pressure in the pipeline, high like this water hammer pressure often causes pipeline breaking, have an accident, therefore also should adorn a water-hammer arrester, like this in order to guarantee the safety of pump pipeline system at the pump discharge place, normal operation, have three device (motor-operated control valves at least in the pump discharge section, safety check, water-hammer arrester), thereby pump discharge section apparatus is many, energy consumption is many, the fault point is many, and maintenance workload is also big, and wherein any one device place fault all will make the whole system cisco unity malfunction, use extremely inconvenience, influenced the working efficiency of entire pump pipe-line system.
Summary of the invention:
The purpose of this utility model is to provide a kind of hydraulic control valve, and described this hydraulic control valve will solve the technical problem that pump discharge section apparatus is many, energy consumption is many in order to eliminate in the prior art, the fault point is many.
This hydraulic control valve of the present utility model is by the Y valve body, valve seat, valve gap, sleeve, valve rod and main valve plate constitute, described Y valve body two ends are respectively arranged with water-inlet cavity and water chamber, described main valve plate is arranged on crossing on the head piece of water-inlet cavity and water chamber, wherein, the middle part of described Y valve body is provided with opening, described valve seat is fixedly installed on described opening, described valve gap is fixedlyed connected with valve seat by bolt, described sleeve is fixedly installed between valve seat and the valve gap, the upper end of described valve rod is arranged in the sleeve, valve rod passes the valve gap rear and lower end and extends in the Y valve body, described main valve plate is fixedlyed connected with the lower end of valve rod, be provided with a piston in the sleeve, described piston is fixedlyed connected with the upper end of valve rod, valve gap is provided with the first water outlet by-pass port, the described first water outlet by-pass port is communicated with the barrel bore of piston top, valve seat is provided with the first water inlet by-pass port, the described first water inlet by-pass port is communicated with the barrel bore of piston below, described water-inlet cavity is provided with the second water inlet by-pass port, and described water chamber is provided with the second water outlet by-pass port.
Further, the downside of described main valve plate is fixedly connected with the Slow Close valve plate, and the external diameter of described slow valve plate is less than the internal diameter of crossing head piece between water-inlet cavity and the water chamber.
Further, be arranged with a spring on the described valve rod, described spring is arranged between valve seat and the main valve plate.
Further, valve rod is connected with the piston interference, and the valve rod of piston upside is provided with two tightening nuts.
Further, valve rod is connected with the interference of main valve plate, and the valve rod of valve plate downside is provided with two tightening nuts.
Working principle of the present utility model is: utilize a by-pass line to connect the first water inlet by-pass port and the second water inlet by-pass port, utilize another by-pass line to connect the first water outlet by-pass port and the second water outlet by-pass port.During starting mode of pump, feed-water end pressure imports the sleeve cavity of resorption into by the inlet bypass line, and valve plate and Slow Close valve plate are slowly opened under the double action of feed-water end pressure and sleeve cavity of resorption hydraulic pressure, and its valve opening is determined by flow.During termination of pumping, flow and pressure reduce suddenly, valve plate begins downward landing under the effect of self gravitation and spring, the main valve plate is closed when flow system flow approaches zero, reduced impact of water hammer like this, valve export hydraulic pressure enters the sleeve epicoele from the outlet bypass line and promotes valve rod simultaneously, and valve rod drives valve plate to begin to close, enter the Slow Close stage, until closing fully.
The utility model and prior art are compared, and its effect is actively with tangible.The utility model is connected a piston in the Y valve body with the main valve plate, adopt bypass tube with water-inlet cavity be connected with the cavity of resorption of piston sleeve, water chamber is connected with the epicoele of piston sleeve, therefore can dividing potential drop when opening and closing valve by bypass tube, elimination hydraulic pressure impacts, and the Slow Close valve plate is set at the valve plate downside, steady when making cut-off valve, the pressure loss is little.
Description of drawings:
Fig. 1 is the structural representation of hydraulic control valve of the present utility model.
Fig. 2 is the A place enlarged diagram among Fig. 1.
Embodiment:
Embodiment 1:
As depicted in figs. 1 and 2, hydraulic control valve of the present utility model, by Y valve body 3, valve seat 4, valve gap 7, sleeve 5, piston 15, valve rod 8 and main valve plate 11 constitute, the two ends of Y valve body 3 are respectively arranged with water-inlet cavity 12 and water chamber 2, the middle part of Y valve body 3 is provided with opening, valve seat 4 is arranged at opening hermetically, sleeve 5 is fixed between valve seat 4 and the valve gap 7 hermetically, connect by bolt between valve seat 4 and the valve gap 7, be provided with piston 15 in the sleeve 5, piston 15 is divided into epicoele 6 and cavity of resorption 9 with space in the sleeve 5, piston 15 is fixedlyed connected with valve rod 8 upper ends, valve rod 8 extends through opening downwards and enters in the valve body 3, valve rod 8 lower ends are fixed with main valve plate 11, forming sealing between main valve plate 11 and valve body 3 madial walls contacts, and separately with water-inlet cavity 12 and water chamber 2, be provided with outlet bypass tube 1 between valve gap 7 and the water chamber 2, outlet bypass tube 1 is connected the sleeve epicoele 6 of water chamber 2 with piston 15 upsides, be provided with inlet bypass tube 13 between valve seat 4 and the water-inlet cavity 12, inlet bypass tube 13 will be gone into water cavity 12 and will be connected with the sleeve cavity of resorption 9 of piston 15 downsides.
Further, also be provided with Slow Close valve plate 14 at main valve plate 11 downsides, the Outside Dimensions of slow valve plate 14 is less than flowing hole size between water-inlet cavity 12 and the water chamber 2, this Slow Close valve plate can be introduced into flowing hole when valve closing like this, reduce area of passage, close fully until valve, steadily sealing is closed; This Slow Close plate also plays the buffering transitional function when valve opening, reduces water hammer.
Further, be arranged with spring 10 in valve rod 8 middle and lower parts, spring 10 upper/lower terminals compress mutually with main valve plate 11 with valve seat 4 respectively and contact.
Further, valve rod 8 upper tips are provided with screw thread, and valve rod 8 is connected with piston 15 interference, the piston upside, are positioned at valve rod and are provided with two tightening nuts.
Further, valve rod 8 lower ends are provided with screw thread, and valve rod 8 is connected with 11 interference of main valve plate, at the valve plate downside, be positioned at the valve rod lower end and be provided with two tightening nuts.
Further, described Slow Close valve plate 14 is connected with main valve plate 11 by bolt.
Concrete, water (flow) direction is shown in Fig. 1.During starting mode of pump, feed-water end pressure imports sleeve cavity of resorption 9 into by inlet bypass line 13, and main valve plate 11 and Slow Close valve plate 14 are slowly opened under the double action of feed-water end pressure and sleeve cavity of resorption hydraulic pressure, and its valve opening is determined by flow.During termination of pumping, flow and pressure reduce suddenly, main valve plate 11 begins downward landing under the effect of self gravitation and spring 10, main valve plate 11 is closed when flow system flow approaches zero, reduced impact of water hammer like this, valve export hydraulic pressure enters sleeve epicoele 6 from outlet bypass line 1 and promotes valve rod 8 simultaneously, and valve rod 8 drives main valve plate 11 to begin to close, enter the Slow Close stage, until closing fully.

Claims (5)

1. hydraulic control valve, by the Y valve body, valve seat, valve gap, sleeve, valve rod and main valve plate constitute, described Y valve body two ends are respectively arranged with water-inlet cavity and water chamber, described main valve plate is arranged on crossing on the head piece of water-inlet cavity and water chamber, it is characterized in that: the middle part of described Y valve body is provided with opening, described valve seat is fixedly installed on described opening, described valve gap is fixedlyed connected with valve seat by bolt, described sleeve is fixedly installed between valve seat and the valve gap, the upper end of described valve rod is arranged in the sleeve, valve rod passes the valve gap rear and lower end and extends in the Y valve body, described main valve plate is fixedlyed connected with the lower end of valve rod, be provided with a piston in the sleeve, described piston is fixedlyed connected with the upper end of valve rod, valve gap is provided with the first water outlet by-pass port, the described first water outlet by-pass port is communicated with the barrel bore of piston top, valve seat is provided with the first water inlet by-pass port, the described first water inlet by-pass port is communicated with the barrel bore of piston below, described water-inlet cavity is provided with the second water inlet by-pass port, and described water chamber is provided with the second water outlet by-pass port.
2. hydraulic control valve as claimed in claim 1 is characterized in that: the downside of described main valve plate is fixedly connected with the Slow Close valve plate, and the external diameter of described slow valve plate is less than the internal diameter of crossing head piece between water-inlet cavity and the water chamber.
3. hydraulic control valve as claimed in claim 1 is characterized in that: be arranged with a spring on the described valve rod, described spring is arranged between valve seat and the main valve plate.
4. hydraulic control valve as claimed in claim 1 is characterized in that: valve rod is connected with the piston interference, and the valve rod of piston upside is provided with two tightening nuts.
5. hydraulic control valve as claimed in claim 1 is characterized in that: valve rod is connected with the interference of main valve plate, and the valve rod of valve plate downside is provided with two tightening nuts.
CN2010201822138U 2010-04-29 2010-04-29 Hydraulic control valve Expired - Fee Related CN201650709U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201822138U CN201650709U (en) 2010-04-29 2010-04-29 Hydraulic control valve

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201822138U CN201650709U (en) 2010-04-29 2010-04-29 Hydraulic control valve

Publications (1)

Publication Number Publication Date
CN201650709U true CN201650709U (en) 2010-11-24

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010201822138U Expired - Fee Related CN201650709U (en) 2010-04-29 2010-04-29 Hydraulic control valve

Country Status (1)

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CN (1) CN201650709U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102797881A (en) * 2012-02-23 2012-11-28 武汉大禹阀门股份有限公司 Quick-opening slow-closing water hammer relief valve
CN103759050A (en) * 2014-01-17 2014-04-30 哈电集团哈尔滨电站阀门有限公司 Novel check valve controlled to be closed
CN103925396A (en) * 2014-05-13 2014-07-16 上海东方威尔阀门有限公司 Full-bore energy-saving check valve
CN104137015A (en) * 2012-03-15 2014-11-05 萱场工业株式会社 Control valve
CN104747780A (en) * 2015-03-27 2015-07-01 张凡 Low-pressure opening diaphragm valve
CN110397770A (en) * 2019-07-31 2019-11-01 江苏圣泰阀门有限公司 A kind of check-valves

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102797881A (en) * 2012-02-23 2012-11-28 武汉大禹阀门股份有限公司 Quick-opening slow-closing water hammer relief valve
CN104137015A (en) * 2012-03-15 2014-11-05 萱场工业株式会社 Control valve
CN103759050A (en) * 2014-01-17 2014-04-30 哈电集团哈尔滨电站阀门有限公司 Novel check valve controlled to be closed
CN103925396A (en) * 2014-05-13 2014-07-16 上海东方威尔阀门有限公司 Full-bore energy-saving check valve
CN104747780A (en) * 2015-03-27 2015-07-01 张凡 Low-pressure opening diaphragm valve
CN110397770A (en) * 2019-07-31 2019-11-01 江苏圣泰阀门有限公司 A kind of check-valves
CN110397770B (en) * 2019-07-31 2020-11-13 江苏圣泰阀门有限公司 Check valve

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20101124

Termination date: 20150429

EXPY Termination of patent right or utility model