CN202280887U - Security valve for multifunctional core - Google Patents
Security valve for multifunctional core Download PDFInfo
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- CN202280887U CN202280887U CN2011200268445U CN201120026844U CN202280887U CN 202280887 U CN202280887 U CN 202280887U CN 2011200268445 U CN2011200268445 U CN 2011200268445U CN 201120026844 U CN201120026844 U CN 201120026844U CN 202280887 U CN202280887 U CN 202280887U
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Abstract
The utility model provides a security valve for a multifunctional core. The security valve for the multifunctional core consists of a main valve, secondary valves, a relay valve, forced switching-on/off solenoid valves, a filter and a corresponding pulse pipe, and is characterized in that: the main valve is located at the center; the pulse pipe is connected with the main valve, and the other components except the pulse pipe are respectively arranged at the both sides of the main valve; and axes are vertical with a horizontal surface. One of the forced switching-on/off solenoid valves is connected in series in the middle of the pulse pipe from an inlet cavity of the main valve to an upper cavity of a main piston. The second solenoid valve is connected in series in the middle of the pulse pipe from an upper cavity of a main separating piston to an outlet of the main valve. The third solenoid valve is connected in series in the middle of the pulse pipe from a lower cavity of the main separating piston to the outlet of the main valve. The parts are connected together by using the pulse pipe. A main valve base and a main separating valve base are fastened in a main valve body. An annular space is formed between the main valve base and the main separating valve base and is connected with an inlet cavity of one of the secondary valves through the pulse pipe. A main valve clack and a main separating valve clack which respectively cover the main valve base and the main separating valve base are respectively fixedly connected with the main piston and the main separating piston through a main valve rod and a push-pull rod. The main valve clack and the main separating valve clack are not connected with each other. According to the security valve for the multifunctional core disclosed by the utility model, the reliability of the safe release is greatly improved, the reliable guarantee is supplied to the normal operation of nuclear power, and the economic loss of the emergency shut-down and off-stream of a nuclear power station, which is caused by that the main valve clack is not closed due to the safe release, is avoided.
Description
Technical field
The utility model relates to safety valve, and particularly multi-functional nuclear is used safety valve.
Multi-functional nuclear is the important protection equipment in the nuclear safety overpressure protection system with safety valve.
Background technique
Existing safety valve has two big types: direct-operated relief valve and indirect acting type safety valve.With regard to function, be divided into Safety function, isolation features and release function again.
The nuclear of patent No. zl03135708.3 is used safety valve, and it is the same with the safety valve group with French Thebe nurse nuclear, and equal tool isolation features is in case when Safety function occurred having nothing to do with fault, isolation features can both be isolated automatically.More existing nuclears are used safety valve; For guaranteeing that safety valve does not cause system to lose too much heating medium when the Fail-closed; On safety valve, increasing some manual remote operations implements to isolate; But in case after isolating, the karyonide system must be out of service immediately, and implement decrease temperature and pressure and change the accident safety valve.
Summary of the invention
The multi-functional nuclear that the utility model provides is used safety valve, and it is different from French Thebe nurse nuclear and uses the safety valve group, and the nuclear that also not exclusively is same as patent No. zl03135708.3 is higher with its reliability of safety valve.
The multi-functional nuclear that the utility model provides belongs to the indirect acting type safety valve with safety valve, is that nuclear at patent No. zl03135708.3 carries out local modification on the architecture basics of safety valve and forms, and it is revised content and is:
A kind of multi-functional nuclear is used safety valve; It is made up of main valve, auxilliary valve, relay valve, forced opening-closing solenoid valve, filter and corresponding pulsed tube, and it is characterized in that: main valve is placed in the middle, except that connecting pulsed tube; Other each several part is arranged in the both sides of main valve; And each axis is all perpendicular to horizontal plane, and one of forced opening-closing solenoid valve is to be connected in the middle of the pulsed tube of main valve entrance cavity to main piston epicoele, and second solenoid valve is connected in the middle of the pulsed tube of main separator piston epicoele to main valve outlet; The 3rd solenoid valve is connected on main separator piston cavity of resorption to the pulsed tube of main valve outlet plenum, and pulsed tube links together each several part; Main valve seat and main isolating valve seat are fastened in the main valve body; The annulus that constitutes between main valve seat and the main isolating valve seat; Be connected through the auxilliary valve inlet of pulsed tube and one of them chamber; Cover main valve clack and main isolating valve lobe on main valve seat and the main isolating valve seat, through main valve stem and pull bar respectively with main piston and main separator piston Joint, and do not connect mutually; The said auxilliary valve that is connected with annulus; Be provided with two auxilliary valve seats and corresponding two auxilliary flaps up and down in the body; The entrance cavity of two valve seats is communicated with, and the outlet plenum of lower valve base is connected with the epicoele of main piston through pulsed tube, and the outlet plenum of upper valve base is connected through the epicoele of pulsed tube with the relay valve piston; The entrance cavity of relay valve is connected with the epicoele of main separator piston through pulsed tube, and its outlet plenum is connected with the outlet plenum of main valve through pulse; Be arranged in the auxilliary valve of main valve opposite side; Be provided with auxilliary valve seat in the body, discharge valve seat and piston and corresponding auxilliary flap and discharge flap, piston top and push rod Joint are moved on the piston and can be backed down the release flap; The entrance cavity of auxilliary valve seat is connected with the main valve entrance cavity through pulsed tube; The entrance cavity that discharges valve seat is connected with the cavity of resorption of main separator piston through pulsed tube, and the outlet plenum of auxilliary valve seat communicates with the cavity of resorption of piston, and the outlet plenum that discharges valve seat is connected with the main valve outlet plenum through pulsed tube.
1. main valve clack is not connected with the main isolating valve lobe mutually, can accomplish task separately independently; 2. an auxilliary valve that contains similar relay valve is set on its right side, and the unlatching of main isolating valve lobe is controlled in special use, when safe release main valve clack occurs and has nothing to do with fault; After the main isolating valve lobe was closed, when system superpressure occurred once more, the auxilliary valve of this that set up can make the main isolating valve lobe open the release pressure medium; 3. the utility model is provided with three solenoid valves and wherein is connected on the enforced opening that rich flap is controlled in solenoid valve special use in the middle of the pulsed tube of main valve entrance cavity to main piston epicoele; The middle solenoid valve of pulsed tube that is connected on main separator piston cavity of resorption to main valve outlet plenum only is used for the enforced opening of main isolating valve lobe: 4. main valve is provided with the extension rod of main valve stem and the extension rod of pull bar in two ends up and down; Respectively through nut with itself and bent stick Joint; Bent stick is connected with the stroke signal beginning, and signaling lamp can indicate main valve clack and the main isolating valve lobe is in opening state or closed condition.
The multi-functional nuclear that carries out behind the local flow improvement is used safety valve, and its working principle is following:
As shown in Figure 1, the main valve clack [64] in the main valve chamber no longer links together with main isolating valve lobe [63].When safety valve inlet ozzle contains pressure medium; Pressure medium makes main valve clack [64] produce an active force that makes progress; It constitutes the sealing force between main valve clack [64] and the main valve seat [98] together with main valve preloading spring [88] to the active force of main valve clack [64], and this power increases (see figure 3) with system pressure.Meanwhile; Through with main valve seat [98] and main isolating valve seat [65] between the pulsed tube [50] that is communicated with of annulus, filter [51] and pulsed tube [52] get into the pressure medium in inside left's valve body [21]; Give the active force of auxilliary flap [17]; Constitute auxilliary flap [17] and the auxilliary valve seat [sealing force between [18]; Meanwhile get into the pressure medium in inside right forward's valve body [128] through pulsed tube [97], filter [96] and pulsed tube [93], give the active force of auxilliary flap [130], constitute the sealing force between auxilliary flap [130] and the auxilliary valve seat [131] from the safety valve inlet.Along with system pressure rises; The active force that acts on bellows [7] and bellows [122] upper-end surface constantly increases; Auxilliary valve control spring [3] and control spring [117] and bellows [7] and the compressed numerical value of bellows [122] also increase thereupon, and adjustable neighbour draws gap delta 1 and δ 3 to be closed (δ 3 also is adjustable to and is lower than the preceding closure of Pc slightly).At this moment, the sealing force between auxilliary flap [17] and auxilliary valve seat [18] and auxilliary flap [130] and the auxilliary valve seat [131] reaches the maximum value (see figure 2).After this along with system pressure increases, the sealing force between auxilliary flap [17] and auxilliary valve seat [18] and auxilliary flap [130] and the auxilliary valve seat [131] reduces rapidly.When system pressure reached auxilliary valve opening pressure definite value P0, sealing power was reduced to zero.When system pressure increases a minimum again; Auxilliary flap [17] and auxilliary flap [130] just are separated from auxilliary valve seat; Pressure medium enters into the epicoele of main piston [66] through pulsed tube [45] from the open place of inside left's valve, pressure need not be raised to system pressure, act on main piston [66] upper end and power affact main valve clack [64] through main valve stem [92]; Make sealing force between main valve clack [64] and the main valve seat [98] from the maximum value prompt drop to zero (see figure 3), main valve clack [64] is opened the release pressure medium.Meanwhile, the unlatching of inside right forward's valve, pressure enters into the cavity of resorption of small piston [134].Act on the power of small piston [134] lower end surface; Back down little release flap [139] through push rod [137]; The pressure medium of intonation is through the open place of pulsed tube [85] and little release flap [139] under the main isolating valve piston, the outlet plenum of the main valve of releasing through pulsed tube [86], [78] again.Because of main isolating valve lobe [63] is to be in opening state under common operating mode, thereby main isolating valve lobe [63] does not move because of the minimizing of the pressure of separating valve piston [106] cavity of resorption to some extent.Yet, when pressure drops to the closing pressure of safe release, assist closing of flap [17]; Make the pressure medium of main piston [66] epicoele not have additionally because of leakage, main valve clack [64] is closed rapidly under the effect of pressure medium and preloading spring [88]; Keep sealing, thereby discharge fully.And the closing of inside right forward's flap [130], the pressure recovery that makes main separator piston [106] cavity of resorption again is to normality.
If closing fault appears in safe release, main valve clack [64] is not closed, because the lasting release of pressure medium makes pressure continue to descend.Along with system pressure descends, control spring [3] is elongation constantly, pushes away that bellows plug [6] is constantly moved up.With bellows plug [6] be fixed together following be connected urceolus [15] also with on move, push away to make with being connected on it is affixed and move on the urceolus [28] with being connected down the affixed pull bar [14] of urceolus [15], make in abutting connection with gap delta 2 constantly to reduce.During a certain value, the neighbour draws gap delta 2 to be closed below pressure drops to system operating pressure interval.After this, along with the increase of system pressure drop-out value, auxilliary sealing force of isolating between flap [23] and the auxilliary isolation valve seat [22] reduces rapidly.When system drops to the force value of regulation; The auxilliary flap [23] of isolating just is separated from the auxilliary valve seat [22] of isolating, and pressure medium gets into relay valve piston [41] epicoele from auxilliary valve seat [22] outlet port that isolates through pulsed tube [44]; Act on the power of relay valve [41] epicoele; Back down relaying flap [35] through push rod [38], the pressure medium [54] of main separator piston [106] epicoele and the open place of relaying flap [35] flow to the outlet plenum of main valve [94] again through pulsed tube [46].Act on the power of main separator piston [106] lower end surface; Through pull bar [53]; Push away main isolating valve lobe [63] is closed; Cut off pressure medium flow and the pressure medium flow that gets into auxilliary valve body [21] between main valve clack [64] and main valve seat [98], thereby accomplished the task of quick isolation, avoided the excessive bleed of system pressure medium.Be that Thebe nurse nuclear use safety valve group like what use this moment, just must implement shutdown immediately, and the system decrease temperature and pressure of order is changed valve.When using patent No. zl03135708.3 nuclear use safety valve, though can resume operation, disobey outer driven by energy safety valve when guaranteeing that serious accident occurs, can discharge required maximum emission automatically, the enforcement stoppage in transit and change valve of also having to.
The multi-functional nuclear that the utility model provides is used safety valve, when safe release has nothing to do with accident and occurs, can not stop transport.If when super high pressure accident occurring once more, when system pressure rose to the cracking pressure of safety valve or is lower than cracking pressure slightly, the auxilliary flap [130] of inside right forward's valve was opened; Discharge the pressure medium of main separator piston [106] cavity of resorption; Under the effect of main separator piston [106] upper cavity pressure medium, make downward power of main separator piston [106] upper-end surface effect, this power is through pull bar [53]; Draw back main isolating valve lobe [63] and implement discharging, make system's step-down.Thereby accomplish overpressure protection task once more.
If occur once more having nothing to do with accident after main isolating valve lobe [63] is opened, reduce to when being lower than the normal closing pressure of main isolating valve slightly when pressure, through pressure gauge with electric contact solenoid valve [101] is opened, come to implement automatically positive closing.
Under normal conditions, but through manual also remote operation solenoid valve [96], can make its unlatching and make main valve clack [64] open the relieving pressure medium; But through manual also remote operation solenoid valve [101], can make main isolating valve lobe [63] positive closing, handle solenoid valve [102], make its unlatching can make main isolating valve lobe [63] enforced opening.
The above-mentioned functions explanation, the multi-functional nuclear that the utility model provides is used safety valve, compares with safety valve with safety valve group or patent No. zl03135708.3 nuclear with Thebe nurse nuclear to have higher reliability.
Description of drawings
The utlity model has following several accompanying drawings
Fig. 1 is that expression has the isolation features system, and after Safety function was opened failure, isolation features can be automatically changeb to the structure diagram of the multi-functional nuclear of Safety function with the most preferred embodiment of safety valve.
Fig. 2 is the multi-functional nuclear of expression to be increased with the increase with system pressure of two auxilliary flap sealing forces of the Safety function of safety valve and isolation features, is dropped rapidly to cracking pressure P during to closing pressure PC point.The sealing characteristics curve.
Fig. 3 is the multi-functional nuclear of expression with the sealing characteristics curve of the main valve clack of the safe release function of safety valve with the sealing characteristics curve of bore Direct spring loaded safety valve flap.
Embodiment
The multi-functional nuclear that the utility model provides is by auxilliary valve, relay valve, main valve, solenoid valve, compositions such as filter, pulsed tube with safety valve.As shown in Figure 1, integral arrangement is: main valve is placed in the middle, and other each several part is arranged in the both sides of main valve, and each shaft axis is all perpendicular to horizontal plane.The structure of main valve is as shown in Figure 1, and main valve seat [98] and main isolating valve seat [65] are fastened in the main valve body [94], and seal weld has all been implemented in the joint up and down.Main valve seat [98] and main isolating valve seat [65] constitute annulus and are connected with pulsed tube [50].Main valve clack [64] is topped on main valve seat [98], and with the main valve stem [92] that main valve clack [64] is fixed together, the screwed part in upper end is passed main piston [66], with nut [68] main valve stem [92] is fixed on the main piston [66].Act on the compressive force of the preloading spring [88] on the main piston [66], can cross main valve stem [92] and act on the main valve clack [64], make it become the pretension sealing force of main valve clack [64].[53 upper end presses solidly the lower end at it to main isolating valve lobe [63] with pull bar through plug screw [62]; The screwed part in lower end of pull bar [53] is passed main separator piston [106]; With nut [109] pull bar [53] is acted on the main isolating valve lobe [63]; Make main isolating valve lobe [63] under nominal situation, be in the unlatching situation all the time.Last cylinder liner [inserted in the main valve body [94] by main valve body [94] upper end, and the upper-end surface of last cylinder liner [87] is placed with seal washer [84], packing ring [70] and seal washer [71], and screwed plug screw [73] is screwed into the valve body from the upper end of main valve body [94] by [87].Above-mentioned each packing ring and cylinder liner [87] are compacted to keep sealing.The extension rod [76] of main valve stem [92] is drawn from top center, and with its bent stick [82] that is fixed in extension rod [76] upper end, [[83] are connected with the stroke signal switch with nut [77].
Extension rod [76] just seal bellows [74] plug it fix up through nut [69] and main valve stem [92]; Weld with pressure-bearing sleeve pipe [72] mutually the upper end of bellows [74], and [75 are screwed into and compress pressure ring [79], seal washer [80] and pressure-bearing sleeve pipe [72] in the plug screw [73] through screwed little blind nut.Following cylinder liner [104] is inserted in the valve body by main valve body [94] lower end.The lower end surface of following cylinder liner [104] is placed with sealing gasket [107], and screwed plug screw [108] is screwed into from the lower end of main valve body [94] and presses cylinder liner [104], sealing gasket [107] to keep sealing.The extension rod [61] of pull bar [53] is drawn from bottom centre, with nut [111] bent stick [58] that it is fixed on the extension rod [61] is connected with stroke signal switch [57].Extension rod [61] is the plug of seal bellows [60] just; It fixes up through nut [110] and pull bar [53]; Weld with pressure-bearing sleeve pipe [112] mutually the lower end of bellows [60]; Be screwed in the plug screw [108] through screwed little blind nut [59], press pressure ring [113], sealing gasket [114] and pressure-bearing sleeve pipe [112].
The auxilliary valve arrangement in main valve left side is as shown in Figure 1, the auxilliary outlet end of isolating valve seat [22] of auxilliary valve seat [18] worker, and cover auxilliary valve seat [18], auxilliary isolate valve seat [22] outlet end surpass capping [19] and capping [20], be welded together with auxilliary valve body [21] respectively.Auxilliary valve seat [17], auxilliary outlet end of isolating valve seat [22], form respectively one with auxilliary valve body [capacitor that [21] inner chamber does not communicate, this chamber are connected with pulsed tube [45] and pulsed tube [44] respectively.
Be seated in auxilliary valve seat [18], auxilliary auxilliary flap [17] on the valve seat [22], the auxilliary following upper end that isolates flap [23] of isolating constitutes auxilliary flap [17], auxilliary pretension sealing force of isolating flap [23] to auxilliary valve seat [18], auxilliary isolation valve seat [22] respectively with the compressive force of compressed little spring [11] and little spring [27] respectively.Be connected under the lower cross bolt [16] that passes auxilliary flap [17], auxilliary rectangular hole of isolating flap [23] and upper cross bolt [24] quilt inner core [10], on connect inner core [25] with under be connected urceolus [15], on connect urceolus [28] and press solidly together.With little spring [upper end of the bellows plug [6] of [11] and little spring [27] contact and end socket [30] through rivet [9] and rivet [29] respectively with following connecting cylinder [10], on be connected inner core [25] with under be connected urceolus [15], on connect urceolus [28] and be fixed together.Pull bar [14] respectively with set screw [26] be fixed on down be connected urceolus, on connect on the urceolus [28].The upper end of bellows [7] and bellows [6] are welded together, and lower end and pressure-bearing sleeve [8] are welded together.The lower end of bellows plug [6] contacts with spring seat [4], and control spring [3] is between the spring seat of honour [4] and the spring lower seat [2], and spring lower seat [2] contacts with adjusting screw [1].When being torqued into adjusting screw [1]; Compressed spring [3] pushes away to make on the bellows plug [6] and moves; Meanwhile; Be connected with its Joint following urceolus [15], on connect urceolus [28], pull bar [14], lower cross bolt [16] and upper cross bolt [24] and move up simultaneously, making in abutting connection with gap delta 1 value increases, δ 2 values reduce.Adjusting screw [1] is the form to be threaded, and twists in spring strut [5].Spring strut [5] is fixed on the auxilliary valve body [21] with the mode that is threaded, and presses pressure-bearing sleeve [8] and seal washer [12], keeping in the inner and outer sealing, and compression seal packing ring [31], to keep inner and outer sealing.
The auxilliary valve arrangement on main valve right side is as shown in Figure 1; Outlet end and the auxilliary valve body [128] of auxilliary valve seat [113] are welded together, be seated on the auxilliary valve seat [131] auxilliary flap [130] lower end and divided scale compression compressive force constitute and assist flap [130] assisting the pretension sealing force of valve seat [131].Horizontal bolt [129] divided scale that passes the rectangular hole of auxilliary flap [130] connects inner core [127] and is connected urceolus [124] and is fixed together; The upper end of the bellows plug [119] that contacts with little spring [125], through rivet [123] be connected inner core [127] and be connected urceolus [124] and be fixed together.The upper end of bellows [122] and bellows plug [119] are welded together, and lower end and pressure-bearing sleeve [121] are welded together.The lower end of bellows plug [119] and the spring seat of honour [118) contact, control spring [117] is between the spring seat of honour [118] and the spring lower seat [116], and spring lower seat [116] contacts with adjusting screw [115].When being torqued into adjusting screw [115], compressed control spring [117] pushes away to make on the bellows plug [119] and moves, meanwhile, with its Joint be connected urceolus [124], horizontal bolt [129] moves up simultaneously, make in abutting connection with gap delta 3 values to increase.Adjusting screw [115] is the mode to be threaded, and twists in spring strut [120].Spring strut [120] is fixed on the auxilliary valve body [128] with the mode that is threaded, and presses pressure-bearing sleeve [121] and seal washer [126], to keep inner and outer sealing.Cylinder liner [143] is inserted in the upper end of auxilliary valve body [128]; Seal washer [132], seal washer [133] have all been placed at the upper and lower of cylinder liner [143] lower end; Twist in auxilliary valve body [128] with the mode that is threaded the lower end that discharges valve body [136]; Compression seal packing ring [132], seal washer [133] and cylinder liner [143] are to keep inner and outer sealing.Be placed on the small piston [134] in the cylinder liner [143]; With the mode that is threaded; Be rotated with on push rod [137]; Compressed cylindrically coiled spring [135] places between small piston [134] and cylinder liner [143] interior edge face, and small piston [134] lower end surface is contacted with melting welding place of auxilliary valve seat [131] exit end face.The outlet end that discharges valve seat [138] is welded together with release valve body [136]; Topped in the upper end that discharges the release flap [139] on the valve seat [138] and the following end in contact of compressed spring [140], the upper end contacts with end socket lid [142], has placed seal washer [141] between end socket lid [142] and the release valve body [136]; End socket lid [142] mode to be threaded; Twist admittedly in discharging flap [136], compression seal packing ring [141] is to keep inner and outer sealing; Be compressed the compressive force of spring [140], become the pretension sealing force that discharges between flap [139] and the release valve seat [138].
Place the structure of relay valve of main valve upper left side as shown in Figure 1, relaying valve seat [36] is with the mode and relaying valve body [37] Joint of melting welding, and topped relaying flap [35] lower end on relaying valve seat [36] contacts with compressed spring [34]; Spring [34] contacts with following capping [32]; Between following capping [32] and relay valve [37], placing seal washer [33], following capping [32] is with the Placement of screw thread, stubborn being fixed in the relaying valve body [37]; Cylinder liner [39] inserts from the upper end of relaying valve body [37]; Seal washer [42] has been placed in the upper-end surface of cylinder liner [39], and upper cover [43] connects the mode of pressing with screw thread, twists solid in relaying valve body [37]; Compression seal packing ring [42] and cylinder liner [39] are to keep inner and outer sealing.Place to be compressed spring [40] between piston [41] and cylinder liner [39] interior edge face, make the upper-end surface of piston [41] be close to the ring-type protrusion of upper cover [43] lower end surface.
Stroke signal up and down, signal are welded in the top and bottom of main valve body [94] respectively with the mode of welding through pole [81], [56].Two position limit switches are used for connecting the red and green signals lamp respectively, are in full-gear or are in closed condition with expression main valve clack [64] and main isolating valve lobe [63].
Solenoid valve [90] is connected between the pulsed tube [97] that connects main valve inlet and main piston [66] epicoele, [91] and [89]; Filter [96] is connected between pulsed tube [97] and the pulsed tube [91]; The unlatching of solenoid valve [90] makes the epicoele that enters into main piston [66] from the pressure medium of inlet, and main valve clack [64] is opened; Release pressure medium, the pressure medium that gets into piston upper chamber are the pressure mediums through filtering.The pulsed tube [93] that is connected to the entering inside right forward valve pocket on the pulsed tube [91] provides the pressure medium after the filtration for inside right forward's valve again.
Solenoid valve [101] between the pulsed tube [100] of access connection main separator piston [106] epicoele to main valve outlet plenum, [99], [78]; Its unlatching is with the main valve outlet plenum of releasing of the pressure medium in main separator piston [106] epicoele; Form a pressure reduction at main separator piston [106] upper and lower cavity; Make power that makes progress of effect on main separator piston [106] lower end surface, main isolating valve lobe [63] is closed.
Insert and connect main separator piston [106] cavity of resorption to the pulsed tube [103] of main valve outlet plenum, the solenoid valve [102] between [78]; Its unlatching is with the main valve outlet plenum of releasing of the pressure medium in main separator piston [106] cavity of resorption; Form a pressure reduction at main separator piston [106] upper and lower cavity; Make downward power of effect on main separator piston [106] upper-end surface, main isolating valve lobe [63] is opened.
Filter [51] is connected between pulsed tube [52], [50], is used for filtering in the main valve chamber pressure medium to inside left's valve pocket.The Placement of other pulsed tube, as shown in Figure 1, pulsed tube [45] one ends weld with the auxilliary valve body [21] in left side mutually, and the other end welds with main valve body [94] mutually, and the outlet plenum of auxilliary flap [17] is communicated with main piston [66] epicoele.Pulsed tube [44], an end welds with the auxilliary valve body [21] in left side mutually, and the other end welds with relay valve upper cover lid [43] mutually, and auxilliary outlet plenum of isolating flap [23] is communicated with the epicoele of relay valve piston [41].
Claims (1)
1. a multi-functional nuclear is used safety valve; It is made up of main valve, auxilliary valve, relay valve, forced opening-closing solenoid valve, filter and corresponding pulsed tube, and it is characterized in that: main valve is placed in the middle, except that connecting pulsed tube; Other each several part is arranged in the both sides of main valve; And each axis is all perpendicular to horizontal plane, and one of forced opening-closing solenoid valve is to be connected in the middle of the pulsed tube of main valve entrance cavity to main piston epicoele, and second solenoid valve is connected in the middle of the pulsed tube of main separator piston epicoele to main valve outlet; The 3rd solenoid valve is connected on main separator piston cavity of resorption to the pulsed tube of main valve outlet plenum, and pulsed tube links together each several part; Main valve seat and main isolating valve seat are fastened in the main valve body; The annulus that constitutes between main valve seat and the main isolating valve seat; Be connected through the auxilliary valve inlet of pulsed tube and one of them chamber; Cover main valve clack and main isolating valve lobe on main valve seat and the main isolating valve seat, through main valve stem and pull bar respectively with main piston and main separator piston Joint, and do not connect mutually; The said auxilliary valve that is connected with annulus; Be provided with two auxilliary valve seats and corresponding two auxilliary flaps up and down in the body; The entrance cavity of two valve seats is communicated with, and the outlet plenum of lower valve base is connected with the epicoele of main piston through pulsed tube, and the outlet plenum of upper valve base is connected through the epicoele of pulsed tube with the relay valve piston; The entrance cavity of relay valve is connected with the epicoele of main separator piston through pulsed tube, and its outlet plenum is connected with the outlet plenum of main valve through pulse; Be arranged in the auxilliary valve of main valve opposite side; Be provided with auxilliary valve seat in the body, discharge valve seat and piston and corresponding auxilliary flap and discharge flap, piston top and push rod Joint are moved on the piston and can be backed down the release flap; The entrance cavity of auxilliary valve seat is connected with the main valve entrance cavity through pulsed tube; The entrance cavity that discharges valve seat is connected with the cavity of resorption of main separator piston through pulsed tube, and the outlet plenum of auxilliary valve seat communicates with the cavity of resorption of piston, and the outlet plenum that discharges valve seat is connected with the main valve outlet plenum through pulsed tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200268445U CN202280887U (en) | 2011-01-27 | 2011-01-27 | Security valve for multifunctional core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200268445U CN202280887U (en) | 2011-01-27 | 2011-01-27 | Security valve for multifunctional core |
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| Publication Number | Publication Date |
|---|---|
| CN202280887U true CN202280887U (en) | 2012-06-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200268445U Expired - Fee Related CN202280887U (en) | 2011-01-27 | 2011-01-27 | Security valve for multifunctional core |
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| CN (1) | CN202280887U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402444A (en) * | 2016-10-18 | 2017-02-15 | 中国核动力研究设计院 | Pilot-operated type safety valve system |
| CN107654687A (en) * | 2017-08-03 | 2018-02-02 | 中国核电工程有限公司 | A kind of pulse valve for radioactivity |
| CN109723897A (en) * | 2017-10-27 | 2019-05-07 | 赵斌 | Zero energy consumption normally-open normally-close solenoid valve of big flux |
| CN109764168A (en) * | 2017-11-09 | 2019-05-17 | 赵斌 | Exclude thermal shock safety valve |
| CN109764167A (en) * | 2017-11-09 | 2019-05-17 | 赵斌 | Reduction of heat impacts safety valve |
| CN110296257A (en) * | 2018-03-22 | 2019-10-01 | 赵斌 | Novel zero energy consumption normally-open normally-close solenoid valve of big flux |
-
2011
- 2011-01-27 CN CN2011200268445U patent/CN202280887U/en not_active Expired - Fee Related
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106402444A (en) * | 2016-10-18 | 2017-02-15 | 中国核动力研究设计院 | Pilot-operated type safety valve system |
| CN106402444B (en) * | 2016-10-18 | 2019-01-11 | 中国核动力研究设计院 | A kind of pilot operated safety valve system |
| CN107654687A (en) * | 2017-08-03 | 2018-02-02 | 中国核电工程有限公司 | A kind of pulse valve for radioactivity |
| CN109723897A (en) * | 2017-10-27 | 2019-05-07 | 赵斌 | Zero energy consumption normally-open normally-close solenoid valve of big flux |
| CN109723897B (en) * | 2017-10-27 | 2020-10-16 | 赵斌 | Large-flux normally open normally closed electromagnetic valve |
| CN109764168A (en) * | 2017-11-09 | 2019-05-17 | 赵斌 | Exclude thermal shock safety valve |
| CN109764167A (en) * | 2017-11-09 | 2019-05-17 | 赵斌 | Reduction of heat impacts safety valve |
| CN109764167B (en) * | 2017-11-09 | 2020-06-05 | 赵斌 | Heat shock reducing safety valve |
| CN109764168B (en) * | 2017-11-09 | 2020-06-12 | 赵斌 | Safety valve for eliminating thermal shock |
| CN110296257A (en) * | 2018-03-22 | 2019-10-01 | 赵斌 | Novel zero energy consumption normally-open normally-close solenoid valve of big flux |
| CN110296257B (en) * | 2018-03-22 | 2020-11-10 | 赵斌 | Novel large-flux normally open normally closed solenoid valve |
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| C14 | Grant of patent or utility model | ||
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Owner name: SICHUAN CHUANKAI VALVE CO., LTD. Free format text: FORMER OWNER: ZHAO WENXUAN Effective date: 20121224 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 610041 CHENGDU, SICHUAN PROVINCE TO: 610213 CHENGDU, SICHUAN PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20121224 Address after: 1158 No. 610213 Sichuan city of Chengdu province Huayang Washington Avenue Patentee after: Sichuan Chuankai Valve Co. Ltd. Address before: 610041 Sichuan city of Chengdu province box 436 retired office Patentee before: Zhao Wenxuan |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120620 Termination date: 20180127 |
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| CF01 | Termination of patent right due to non-payment of annual fee |