CN207470787U - Two-seater voltage-stablizer spray valve - Google Patents
Two-seater voltage-stablizer spray valve Download PDFInfo
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- CN207470787U CN207470787U CN201721570874.6U CN201721570874U CN207470787U CN 207470787 U CN207470787 U CN 207470787U CN 201721570874 U CN201721570874 U CN 201721570874U CN 207470787 U CN207470787 U CN 207470787U
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Abstract
The utility model discloses a kind of two-seater voltage-stablizer spray valves, including valve body, spool and valve rod, valve body has cavity, cavity includes cavity epimere, cavity stage casing and cavity hypomere, the upper end setting bonnet, of valve body, the lower end setting bottom flange of valve body, valve body has the inlet channel connected with cavity stage casing, the outlet upper runner connected with cavity epimere and the outlet lower flow channel connected with cavity hypomere, cavity stage casing is provided with annular groove, upper annular groove has been embedded in upper valve base, bonnet, compresses upper valve base by upper pressing sleeve, cavity stage casing is provided with lower annular groove, lower annular groove has been embedded in lower valve base, bottom flange compresses lower valve base by pushing to cover；Spool includes upper valve core and bottom spool, and upper valve core can be blocked on upper valve base, and bottom spool can be blocked on lower valve base；One end of valve rod is connect with upper valve core, and the other end passes through bonnet, and connect with executing agency.The utility model, good airproof performance, discharge coefficient are big.
Description
Technical field
The utility model is related to industrial system regulating valve field, it particularly relates to a kind of two-seater voltage-stablizer spray valve.
Background technology
Voltage-stablizer spray valve is one of pressurized-water reactor nuclear power plant reactor coolant loop pressure control equipment, and function is to make
Pressure is controlled in a certain range in reactor voltage-stablizer.The opening and closing of voltage-stablizer spray valve are controlled by voltage-stablizer pressure
Force control system.During voltage-stablizer pressure rise, control pressurer system, which sends out signal, opens voltage-stablizer spray valve, reactor cooling
" cold fluid " of cold section of agent system sprays into the voltage-stablizer vapor space by voltage-stablizer spray valve and fog-spray nozzle, makes under voltage-stablizer pressure
Drop.
The operating mode of voltage-stablizer spray valve is：Operating temperature：343 DEG C, operating pressure：15.2 MPa, operting differential pressure 0.6MPa.
The discharge coefficient of low voltage difference job requirement valve is higher, can be only achieved defined flow.First generation voltage-stablizer spray valve is single
Seat regulating valve form, sylphon seal.Shortcoming is to improve discharge coefficient, and valve body uses casting.Second generation spray valve due to
The requirement of discharge coefficient further improves, and is changed to V-type ball-valve structure.Shortcoming is cannot to use sylphon seal, valve L-type arrangement
It is not very convenient.
It is that two sealing surfaces cannot be simultaneously that regulating valve of two-seater, which is a shortcomings that appearance is compared regulating valve structure earlier, protruded,
Good contact causes to leak larger.
Invention content
The technical problem to be solved by the utility model is in view of the deficienciess of the prior art, provide a kind of double
Seat voltage-stablizer spray valve can have big discharge coefficient and convenient for disassembly and assembly.
In order to solve the above technical problems, the technical solution adopted in the utility model is：A kind of two-seater voltage-stablizer spray valve,
Including valve body, spool and valve rod, the valve body has along the perforative cavity of short transverse, and the cavity wraps successively from top to bottom
Cavity epimere, cavity stage casing and cavity hypomere are included, the upper end of the valve body sets dismountable bonnet, the lower end of the valve body
Dismountable bottom flange is set, and the valve body has the inlet channel connected with the cavity stage casing, connects with the cavity epimere
Logical outlet upper runner and the outlet lower flow channel connected with the cavity hypomere,
The position that the cavity stage casing is located at below the outlet upper runner is provided with annular groove, in the upper annular groove
Upper valve base is embedded with, the bonnet, compresses the upper valve base by upper pressing sleeve, and the cavity stage casing is located at the outlet and flows down
Position above road is provided with lower annular groove, and the lower annular groove has been embedded in lower valve base, and the bottom flange is by pushing casing pressure
The tight lower valve base；
The spool includes the upper valve core and bottom spool that are connected by connecting component, and the upper valve core can be blocked described
On upper valve base, the bottom spool can be blocked on the lower valve base；
One end of the valve rod is connect with the upper valve core, and the other end passes through the bonnet, and connect with executing agency.
Preferably, the lower part of the bottom spool is provided with guide rod, and being provided on the bottom flange can be for institute
State the guide sleeve that guide rod moves along.
Preferably, the connecting component is the stem being arranged between the upper valve core and the bottom spool
Part.
Preferably, annular chamber is formed between the bonnet, and the valve rod, there is wave in the annular chamber
Line pipe sleeve, the bellows-sheathed are fixed on by the flange of lower end between the bonnet, and the valve body, the valve rod housing
Equipped with bellows, the lower end of the bellows is connect with the spool, and upper end and the connector being set on the bellows-sheathed connect
It connects.
Preferably, it is provided with plug screw on the bonnet,.
Preferably, cylindrical portion is provided on the upper valve core, the valve rod is threadedly coupled with the cylindrical portion, institute
It states and is equipped with pin in valve rod and the cylindrical portion.
Preferably, it is described outlet upper runner and it is described outlet the V-shaped arrangement of lower flow channel, it is described outlet upper runner with
The outlet lower flow channel is aggregated into delivery outlet in the position far from the spool.
Preferably, the valve body is forging.
Preferably, the executing agency is pneumatic actuator.
Preferably, it is all provided between the upper valve base and the valve body and between the lower valve base and the valve body
It is equipped with gasket.
Implement the two-seater voltage-stablizer spray valve of the utility model, have the advantages that：Using two valve seats and two
A spool can have larger discharge coefficient；Upper valve base is compressed using bonnet, bottom flange compresses lower valve base, without screw thread
Connection, thus it is convenient for disassembly and assembly, efficiently.Using bellows, improve from shake frequency.Valve body uses forging, can ensure quality.
Description of the drawings
Below in conjunction with accompanying drawings and embodiments, the utility model is described in further detail, in attached drawing：
Fig. 1 is the sectional view of one embodiment of the two-seater voltage-stablizer spray valve of the utility model；
Fig. 2 is to remove the schematic diagram after executing agency in Fig. 1；
Fig. 3 is the imaginary cross section figure of valve body in Fig. 1.
In the figures above,
1- bottom flanges；2- flange seal rings；3- valve bodies；4- bonnet,s；5- flange bolts；6- executing agencies；7- guide sleeves；
Pressing sleeve under 8-；9- gaskets；10- lower valve bases；11- spools；1101- upper valve cores；1102- bottom spools；1103- connecting components；1104-
Guide rod；12- upper valve bases；13- is sold；The upper pressing sleeves of 14-；15- valve rods；16- bellowss；17- bellows-sheatheds；18- plug screws；19- into
Mouth runner；20- exports lower flow channel；21- cavitys stage casing；22- exports upper runner；23- delivery outlets；24- connecting flanges；25- cavitys
Epimere；26- cavity hypomeres.
Specific embodiment
In order to which the purpose of this utility model, technical solution and advantage is more clearly understood, with reference to embodiment and attached
The utility model is further described in figure.
With reference to shown in Fig. 1~2, the two-seater voltage-stablizer spray valve of the utility model, including valve body 3, spool 11 and valve rod 15.
Valve body 3 is preferably forging, is easily guaranteed that quality.
Valve body 3 has along the perforative cavity of short transverse, and cavity includes in cavity epimere 25, cavity successively from top to bottom
Section 21 and cavity hypomere 26.The upper end of valve body 3 sets dismountable bonnet, 4, for example, shown in figure be, is set on bonnet, 4
Flange bolt 5 is put, the tapping on valve body 3 forms connecting flange 24, and flange bolt 5 passes through bonnet, 4 and is screwed on valve body 3.
The lower end of valve body 3 sets dismountable bottom flange 1, similar, and flange bolt 5 is set on bottom flange 1, and flange bolt 5 passes through down
It valve deck 1 and is screwed on valve body 3.This flanged connection, can meet the requirement of quick service.Between bottom flange 1 and valve body 3
Flange seal ring 2 is set, forms complete pressure boundary, alternatively, it is also possible to set flange close between bonnet, 4 and valve body 3
Seal 2.
With reference to shown in Fig. 3, valve body 3 has the inlet channel 19 connected with cavity stage casing 21, goes out with what cavity epimere connected
Mouth upper runner 22 and the outlet lower flow channel 20 connected with cavity hypomere.Further, outlet upper runner 22 and outlet lower flow channel
20 V-shaped arrangements, outlet upper runner 22 are aggregated into delivery outlet 23 with exporting lower flow channel 20 in the position far from spool 11.Inlet flow
Road 19, outlet upper runner 22 and outlet lower flow channel 20 are the surface of revolution, easy to process.
The position that cavity stage casing 21 is located at 22 lower section of outlet upper runner is provided with annular groove, and annular groove can be figure on this
Shown in section it is stepped, upper annular groove has been embedded in upper valve base 12, and upper valve base 12 is matched with the shape of upper annular groove, on
Valve deck 4 compresses upper valve base 12 by upper pressing sleeve 14, and therefore, upper valve base 12 need not be bolted.Cavity stage casing 21 is located at
The position of 20 top of mouth lower flow channel is provided with lower annular groove, and shape is similar with upper annular groove, and lower annular groove has been embedded in lower valve
Seat 10, bottom flange 1 compresses lower valve base 10 by lower pressing sleeve 8, also without bolt.Between upper valve base 12 and valve body 3 and lower valve base
Gasket 9 is both provided between 10 and valve body 3, so as to ensure to seal.
Spool 11 includes the upper valve core 1101 connected by connecting component 1103 and bottom spool 1102, and upper valve core 1101 can
It blocks on upper valve base 12, bottom spool 1102 can be blocked on lower valve base 10.As shown in the figure, connecting component 1103 is is arranged on
Rod-like members between upper valve core 1101 and bottom spool 1102, can be with 1,102 1 bodily form of upper valve core 1101 and bottom spool
Into.
One end of valve rod 15 is connect with upper valve core 1101, as shown in the figure, cylindrical portion is provided on upper valve core 1101, valve rod 15
It is threadedly coupled with cylindrical portion, is equipped with pin 13 in valve rod 15 and cylindrical portion, prevents valve rod 15 from being loosened with cylindrical portion.Valve rod 15 it is another
One end passes through bonnet, 4 and is connect with executing agency 6, which can be pneumatic actuator, specially adjustment type gas
Dynamic executing agency is responsible for realizing the switch and regulatory function of valve.The conciliation type pneumatic actuator, can be from existing side
It is selected in case, thus it is not reinflated.
As shown in Figure 1, 2, the lower part of bottom spool 1102 is provided with guide rod 1104, and being provided on bottom flange 1 can be for leading
The guide sleeve 7 moved along to bar can be convenient for the guiding of spool 11 when moving in this way.Spool has guiding about 11, can
To improve its job stability.
For ease of sealing and improving from shake frequency, annular chamber is formed between bonnet, 4 and valve rod 15, is had in annular chamber
There is bellows-sheathed 17, which is placed on except valve rod 15.Bellows-sheathed 17 is fixed on bonnet, 4 by the flange of lower end
Between valve body 3, such as shown in figure, groove is respectively provided at the top of the bottom of bonnet, 4 and valve body 3, it is recessed that flange is located at this
In slot, when bonnet, 4 is fixed on valve body 3, which is fixed together.Bellows 16, wave are arranged with outside valve rod 15
The lower end of line pipe 16 is connect with spool 11, and upper end is connect with the connector being set on bellows-sheathed 17.Further, bonnet, 4
On be provided with plug screw 18, the plug screw 18 can be used for bellows 16 rupture when leak detection.
The two-seater voltage-stablizer spray valve of the utility model ensures its performance and sealing reliability by structure design.Voltage stabilizing
Device spray valve needs certain letdown flow to ensure the homogeneity of voltage-stablizer internal working medium.Double-beat drop valve discharge coefficient is big, directly
Stroke can be used what the advantages of bellows exactly voltage-stablizer spray valve needed.The valve body of the utility model uses forging, ensures matter
Amount；Cancel valve seat screw thread, convenient for Quick Release；Interior crossing type bellows designs, and without using changeover portion, improves from shake frequency.
The basic principle of the utility model and main feature and the advantages of the utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the present utility model is not limited to the above embodiments, described in above embodiments and description
Only illustrate the principle of the utility model, on the premise of not departing from the spirit and scope of the utility model, the utility model is also
Various changes and modifications are had, these various changes and improvements fall within the scope of the claimed invention.The utility model
Claimed range is defined by the appending claims and its equivalent thereof.
Claims (10)
1. a kind of two-seater voltage-stablizer spray valve, which is characterized in that including valve body, spool and valve rod, the valve body has along height
The perforative cavity in direction is spent, the cavity includes cavity epimere, cavity stage casing and cavity hypomere, the valve body successively from top to bottom
Upper end dismountable bonnet, is set, the lower end of the valve body sets dismountable bottom flange, the valve body have with it is described
It the inlet channel of cavity stage casing connection, the outlet upper runner that is connected with the cavity epimere and is connected with the cavity hypomere
Export lower flow channel,
The position that the cavity stage casing is located at below the outlet upper runner is provided with annular groove, and the upper annular groove is embedded in
There is upper valve base, the bonnet, compresses the upper valve base by upper pressing sleeve, and the cavity stage casing is located in the outlet lower flow channel
The position of side is provided with lower annular groove, and the lower annular groove has been embedded in lower valve base, and the bottom flange compresses institute by pushing to cover
State lower valve base；
The spool includes the upper valve core and bottom spool that are connected by connecting component, and the upper valve core can be blocked in the upper valve
On seat, the bottom spool can be blocked on the lower valve base；
One end of the valve rod is connect with the upper valve core, and the other end passes through the bonnet, and connect with executing agency.
2. two-seater voltage-stablizer spray valve according to claim 1, which is characterized in that the lower part of the bottom spool, which is provided with, leads
To bar, the guide sleeve that can be moved along for the guide rod is provided on the bottom flange.
3. two-seater voltage-stablizer spray valve according to claim 1, which is characterized in that the connecting component is described to be arranged on
Rod-like members between upper valve core and the bottom spool.
4. two-seater voltage-stablizer spray valve according to claim 1, which is characterized in that between the bonnet, and the valve rod
Annular chamber is formed with, there is bellows-sheathed in the annular chamber, the bellows-sheathed is fixed on by the flange of lower end on described
Between valve deck and the valve body, bellows is arranged with outside the valve rod, the lower end of the bellows is connect with the spool, upper end
It is connect with the connector being set on the bellows-sheathed.
5. two-seater voltage-stablizer spray valve according to claim 4, which is characterized in that be provided with plug screw on the bonnet,.
6. two-seater voltage-stablizer spray valve according to claim 1, which is characterized in that be provided with cylindricality on the upper valve core
Portion, the valve rod are threadedly coupled with the cylindrical portion, and pin is equipped in the valve rod and the cylindrical portion.
7. two-seater voltage-stablizer spray valve according to claim 1, which is characterized in that the outlet upper runner and the outlet
The V-shaped arrangement of lower flow channel, the outlet upper runner are aggregated into output with the outlet lower flow channel in the position far from the spool
Mouthful.
8. two-seater voltage-stablizer spray valve according to claim 1, which is characterized in that the valve body is forging.
9. two-seater voltage-stablizer spray valve according to claim 1, which is characterized in that the executing agency performs machine to be pneumatic
Structure.
10. two-seater voltage-stablizer spray valve according to claim 1, which is characterized in that the upper valve base and the valve body it
Between and the lower valve base and the valve body between be both provided with gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721570874.6U CN207470787U (en) | 2017-11-22 | 2017-11-22 | Two-seater voltage-stablizer spray valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721570874.6U CN207470787U (en) | 2017-11-22 | 2017-11-22 | Two-seater voltage-stablizer spray valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207470787U true CN207470787U (en) | 2018-06-08 |
Family
ID=62262054
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721570874.6U Active CN207470787U (en) | 2017-11-22 | 2017-11-22 | Two-seater voltage-stablizer spray valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207470787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725788A (en) * | 2017-11-22 | 2018-02-23 | 上海核阀门股份有限公司 | Two-seater voltage-stablizer spray valve |
-
2017
- 2017-11-22 CN CN201721570874.6U patent/CN207470787U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107725788A (en) * | 2017-11-22 | 2018-02-23 | 上海核阀门股份有限公司 | Two-seater voltage-stablizer spray valve |
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