CN202927170U

CN202927170U - Fast pressure relief safety device

Info

Publication number: CN202927170U
Application number: CN 201220529930
Authority: CN
Inventors: 郭宝发
Original assignee: Tianjin Binhai New Area Tanggu Chengfan Precision Casting Co Ltd
Current assignee: Tianjin Binhai New Area Tanggu Chengfan Precision Casting Co Ltd
Priority date: 2012-10-16
Filing date: 2012-10-16
Publication date: 2013-05-08
Anticipated expiration: 2022-10-16

Abstract

Provided is a fast pressure relief safety device. The fast pressure relief safety device is an auxiliary device which enables an output end of a pipeline to reduce pressure fast and avoids leakage and water dropping. A valve body is assembled in a conveying pipeline, a group of valve collars with a filter screen sleeved in the middle in a penetrating mode is arranged on a water inlet front edge for backflow pressure reduction, a superposed valve block group is reserved on the bottom portion, and a pressure relief valve group control is formed by being matched with the ejection of an elastic piece on the bottom portion. When a pump reaches set pressure in a starting process, the pressure relief valve group is closed. When the pump stops and the pressure of the pump decreases to set internal pressure, a pressure relief auxiliary device is opened fast, water outlet supply is closed, the fast pressure reduction of a water outlet end is achieved, and the using control aim that the water outlet end does not have excess pressure and water dropping is achieved.

Description

The quick pressure releasing safety installations

Technical field

The utility model relates to a kind of quick pressure releasing safety installations.

Background technique

the high pressure that general traditional agriculture or supercharging are used with spray structure circulates in supply channel, make the current water outlet reach the voltage stabilizing operation and prevent that the super danger situation of using from occuring for asking, usually dispose voltage stabilizing valve tool on the circulation pipeline of facility, voltage stabilizing when assembling the pressure that reaches whole pipeline inside and water outlet by pressure maintaining valve is set, so all voltage stabilizings are controlled, in fact all after preventing that the waterexit end from closing, what in pipe, the part of superpressure can be in good time refluxes via the design pressure release that refluxes, the waterexit end of guaranteeing to spray can stop water outlet at once, and can guarantee that delivery line obtains safe maintenance on using.But traditional pressure maintaining valve structural design; mainly with similar check valve shape design; by the side pressurization input of supplying water; when hydraulic pressure reaches the discharge pressure of setting; can open the elasticity valve port that built-in non-return is used; make discharge pressure keep certain high pressure; in order to stable discharge pressure is provided; so after shutdown is closed in pumping; the fog head of water outlet is because lasting water spray falls in overpressure slow; especially when connecting pipeline is longer dripping of producing continue will be more serious, it badly influences the clean of whole field of employment and quality that actual spraying is used.

The model utility content

The purpose of the utility model is to provide a kind of safety installations that can quick pressure releasing.

Correspondingly, a kind of quick pressure releasing safety installations of the utility model, it includes a valve tool body, in the spherical parts that elastic component, valve piece and the sealing of use are controlled in voltage stabilizing is housed, the backwater duct that pressure release is used and in-built interlock valve seat member; The valve collar of a central tool penetration hole is installed between intake pipe and valve tool body water inlet one side, cooperation has the valve block group of flow passage and the pressure relief device that elastic component forms, when supplying water the stopping time, valve collar open to form flow passage together with the ejection that makes progress of valve block group, make into the water in-pipe flow by the flow passage drainage that valve block forms, discharge rapidly pressure release by the bottom.

As further improvement of the utility model, be assembled with filter screen in the central through hole of described valve collar.

As further improvement of the utility model, described valve block group is organized altogether stacked group by the valve piece of the upper valve block of a tool central authorities cone shape hole and a tool guiding gutter and is formed.

As further improvement of the utility model, the relative connection of guiding gutter of the cone shape hole of described upper valve block and valve piece.

The beneficial effects of the utility model are: valve collar open to form flow passage together with the ejection that makes progress of valve block group, makes into the water in-pipe flow by the flow passage drainage that valve block forms, and discharges rapidly pressure release by the bottom, so can make the safety installations explosive decompression.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the utility model quick pressure releasing safety installations;

Fig. 2 is the stereogram of the utility model quick pressure releasing safety installations;

Fig. 3 is the floor map of the utility model quick pressure releasing safety installations;

Fig. 4 is the slip plane schematic diagram of the utility model quick pressure releasing safety installations.

Embodiment

Below with reference to embodiment shown in the drawings, the utility model is described in detail.

Please coordinate Fig. 1 to shown in Figure 4, the utility model quick pressure releasing safety installations has voltage stabilizing valve tool body 10, its inside is established and is stayed one group of bottom to be done the spherical valve member 14 of ejection sealing water inlet by the sealing of elastic component 11 ejections by another spring part 13 with valve piece 12 and apical margin, one side of valve body flowing water Valve is established and is stayed a refluxing opening 15, for pressure release reflux of assembling, it reaches safe " locked in " operation by one group of easy cluster spring 16 ejection chock 17.Water inlet one end of

valve tool body

10, and 20 of intake pipes are hinged with a tool safe pressure relief device in advance, its internal main will be with the valve collar 21 of a sealing, central interior is set as and runs through the poroid filter screen 22 that wears, form the path of a circulation, the bottom coordinates the valve block group that mutually is comprised of upper valve block 23 and valve piece 24, is arranged by relatively being communicated with by the cone shape hole 231 on stacked group valve block group and guiding gutter 241 by central filter screen 22 circulations for current, common composition conducting duct drainage, the bottom is with elastic component 25 ejections.when assembling is used, the water supply initial stage that pumping starts, elastic component 25 can be with the ejection of valve block group to the top, form the unimpeded shape of pipeline, current can be back in the pipeline of backflow by valve piece 24 to guiding gutter 241 through cone shape hole 231 on every side via filter screen 22 drainages of central authorities, see through its taper duct restriction, make the water flow of its outflow less than the water output significant proportion, when being pressurized to suitable force value in pipe, elastic component 25 pressurizeds can shorten and make valve piece 24 be depressed into the bottom, seal bleed outlet 26 in good time, reach water inlet pressurization operation completely, so consist of by the complete stream siphunculus line structure design of pumping pressurization for water spray.

voltage stabilizing and safety quick pressure release improvement design with the utility model supply channel, when primary features namely coordinates spraying to use, when termination is supplied water in pumping, see through the voltage stabilizing design of valve tool body 10, make the water management of keeping out that whole spray operation can be suitable, when discharge pressure is depressured to lower than the atomisation pressure value set, valve body connects the Decompression valves group of intake pipe 20 1 side bleed outlet 26 interior assemblings, will be because of pressure drop, make its in-built elastic component 25 can upwards raise whole valve block group, form the duct of circulation, and the current of intake pipe 20 1 sides will be done the pressure release outflow by bleed outlet rapidly at this moment, make the interior pressure of intake pipe 20 drop to rapidly minimum state, and this moment, the valve tool body 10 water outlet one built-in valve pieces 12 of side were just higher because of the interior pressure of outlet pipe 18, and to water inlet one end ejection, and coordinate spring part 13 to push seal the spherical parts 14 in the valve tool to the entry oral area, reach and stop operating into water, make the hydraulic pressure of shorter outlet pipe 18 sides continue step-down by water spray, the relative setting of the elastic force ejection of the ejection pressure setting of cooperation sprinkler and chock 17 ejections of refluxing opening 15, make and open the duct of refluxing, make the current of backflow can nature get back to groove district into water by the reflux line release of pressure, and under chock 17 elastic force are set in seeing through return apertures, after making outlet pipe 18 internal pressures drop to setup pressure value, just can the auto back returning to customs close, so can guarantee to store in outlet pipe 18 appropriate current, during the convenient pressurization of startup again, can reach rapidly the needs that spraying is used.

and with the utility model under the design of the pressure release auxiliary device of valve tool body 10 water inlet one ends assembling, it sees through pressure intake pressure value transform, keying interlock as water inlet one side bleed outlet 26, when pumping starts the water supply initial stage, when hydraulic pressure does not reach the spraying use, pressure relief device is opening state, be pressurized at pressure and use when needing, autoshutdown refluxes and forms a full pressurization shape, and close in pumping, when stopping pressurization water supply, when setup pressure value is arrived in the spray water pressure drop, see through on the ejection valve collar 21 of pressure relief device built-in elastic spare 25 and move the formation flow passage, oppositely open pressure relief device, make the hydraulic pressure earial drainage discharge pressure release rapidly in intake pipe 20, make the water supply supercharging of waterexit end interrupt rapidly, make it see through the interior pressure back-pressure of outlet pipe, open rapidly the refluxing opening 15 of water outlet side, the outer pressure release rapidly of current direction in outlet pipe 18 is flowed out, see through the 10 synchronous pressure release operations in both sides of valve tool body, make the pressure rapid depressurization of whole atomizer passgae inside, so can make spraying output end pressure explosive decompression, reaching safety does not have the use state that do not drip of overbottom pressure, make spraying device can not produce the situation of dripping.

Be to be understood that, although this specification is described according to mode of execution, but be not that each mode of execution only comprises an independently technological scheme, this narrating mode of specification is only for clarity sake, those skilled in the art should make specification as a whole, technological scheme in each mode of execution also can through appropriate combination, form other mode of executions that it will be appreciated by those skilled in the art that.

Above listed a series of detailed description is only illustrating for feasibility mode of execution of the present utility model; they are not to limit protection domain of the present utility model, all do not break away from equivalent mode of execution that the utility model skill spirit does or change all should be included in protection domain of the present utility model in.

Claims

1. quick pressure releasing safety installations, it includes a valve tool body, in the spherical parts that elastic component, valve piece and the sealing of use are controlled in voltage stabilizing is housed, the backwater duct that pressure release is used and in-built interlock valve seat member; The valve collar of a central tool penetration hole is installed between intake pipe and valve tool body water inlet one side, cooperation has the valve block group of flow passage and the pressure relief device that elastic component forms, it is characterized in that: when supplying water the stopping time, valve collar open to form flow passage together with the ejection that makes progress of valve block group, make into the water in-pipe flow by the flow passage drainage that valve block forms, discharge rapidly pressure release by the bottom.

2. quick pressure releasing safety installations according to claim 1, is characterized in that: be assembled with filter screen in the central through hole of valve collar.

3. quick pressure releasing safety installations according to claim 1 is characterized in that: the valve block group is organized altogether stacked group by the valve piece of the upper valve block of a tool central authorities cone shape hole and a tool guiding gutter and is formed.

4. quick pressure releasing safety installations according to claim 3, is characterized in that: the cone shape hole of upper valve block and relative connection of guiding gutter of valve piece.