CN207539396U - A kind of Novel pressure-reducing valve group - Google Patents
A kind of Novel pressure-reducing valve group Download PDFInfo
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- CN207539396U CN207539396U CN201721246101.2U CN201721246101U CN207539396U CN 207539396 U CN207539396 U CN 207539396U CN 201721246101 U CN201721246101 U CN 201721246101U CN 207539396 U CN207539396 U CN 207539396U
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Abstract
The utility model discloses a kind of Novel pressure-reducing valve groups, including pressure reducing valve, check (non-return) valve and safety valve, wherein, pressure reducing valve includes the first water inlet, decompression valve body and the first water outlet positioned at decompression valve body side, check (non-return) valve includes antireverse valve spool, connector and the second water outlet, wherein, antireverse valve spool is located at the first water outlet of pressure reducing valve, second water outlet is located at the separate antireverse valve spool side on check (non-return) valve, safety valve includes the second water inlet, safe valve body and third water outlet, wherein, the connector bolt of the second water inlet and check (non-return) valve connects；This Novel pressure-reducing valve group has decompression, anti-system overpressure and inverse-stopping functions, and effect of easing stress is notable, and it is convenient that installation is replaced, good airproof performance, and autgmentability is strong.
Description
Technical field
The utility model is related to reducer unit technical field, more particularly, to a kind of Novel pressure-reducing valve group.
Background technology
The main function of pressure reducing valve is the outlet pressure that inlet pressure is reduced to a certain needs by adjusting pressure, and according to
By the energy of medium in itself, outlet pressure is made to automatically keep stabilization.Current reducer unit is typically all single pressure reducing valve, in pressure
When becoming larger suddenly, decompression valve action can not reach effect, pose a big pressure to pipeline, cause the use longevity of valve and pipeline
Life reduces.In addition, the container pressure that pressure reducing valve subsequently connects may be more than pressure in pressure reducing valve, subtract so as to return medium counter flow
Pressure valve, pump and drive motor reversion and vessel media are released.Therefore, in order to solve process of single pressure reducing valve in actual use
Present in these problems, be badly in need of providing a kind of Depressure valve for the problems such as can solving abrupt pressure change, medium counter flow.
Utility model content
The utility model is the shortcoming solved present in above-mentioned present technology, and valve body pressure can be reduced by providing one kind
Cataclysm eliminates medium counter flow, eliminates the Novel pressure-reducing valve group that drive motor reversion was released and eliminated to vessel media, makes pressure reducing valve
Group safety higher in use, longer life expectancy.
The technical solution of the utility model is realized in the following way：A kind of Novel pressure-reducing valve group, including subtracting
Pressure valve, check (non-return) valve and safety valve, wherein, pressure reducing valve includes the first water inlet, decompression valve body and positioned at decompression valve body side
The first water outlet, check (non-return) valve include antireverse valve spool, connector and the second water outlet, wherein, antireverse valve spool is located at pressure reducing valve
First water outlet, the second water outlet are located at the separate antireverse valve spool side on check (non-return) valve, and safety valve includes the second water inlet, peace
Full valve ontology and third water outlet, wherein, the connector bolt connection of the second water inlet and check (non-return) valve.
Further, the second water inlet of safety valve outer wall is equipped with the first annular groove for placing sealing ring, the safety valve the
Second annular groove is equipped on the upside of the first annular groove of two water inlet outer walls, check (non-return) valve connector side wall is equipped with circumferentially arcuate lack
Mouthful, plug blades are inserted into second annular groove gap location and realize that the bolt is connect in the circumferentially arcuate notch, wherein, it inserts
Selling sheet shape is reeded U-shaped for both sides inner wall；Safety valve can be rotated in bolt junction around reducer unit.
Further, pressure reducing valve lower end and check (non-return) valve lower end further respectively have first interface and second interface, pressure reducing valve and
Check (non-return) valve can carry out pressure release by first interface and second interface respectively or be used as the spare interface of multichannel valve body.
Further, the inner wall or outer wall of first interface and second interface are equipped with thread bush, can pass through external inner screw sheath
Or external external thread sleeve is threadedly coupled.
Further, the first water inlet of pressure reducing valve and the second water outlet of check (non-return) valve are equipped with the card for sealing reducer unit
Son, the first water inlet of pressure reducing valve and the contact surface of the second water outlet and thread bush of check (non-return) valve and clamp are all inclined-plane.
Still further, the material of reducer unit is copper alloy or stainless steel, the material of the plug blades is stainless steel.
Further, the clamp of sealing reducer unit, decompression are also useful on pressure reducing valve water inlet and check (non-return) valve water outlet
The water inlet of valve and the water outlet of check (non-return) valve and the contact surface of thread bush and clamp are all inclined-plane；In pipeline press-in pressure reducing valve water inlet
After mouth, check (non-return) valve water outlet, thread bush is compressed, four arms of angle of clamp are gradually to the deformation of pipeline side until clamp and pipeline are complete
Pressing, finally, reducer unit form sealing state with pipeline.
The utility model provides the valve group of a collection pressure reducing valve, safety valve and check (non-return) valve, have decompression, anti-system overpressure and
The Novel pressure-reducing valve group of inverse-stopping functions；Safety valve is connected with the check (non-return) valve in reducer unit using bolt, and safety valve can
270 ° are rotated around reducer unit, reduces the difficulty of installation drainpipe；Each entery and delivery port and pipeline of reducer unit are become using extruding
The mode of shape is sealed, it is only necessary to the two pressing completely can be made after being squeezed using card pressure tool, it is convenient and efficient, and it greatly increases
The leakproofness of reducer unit；In addition, this reducer unit is additionally provided with two spare interfaces, the autgmentability of valve group is increased, is used
Range is wider.
Description of the drawings
Fig. 1 is a kind of Novel pressure-reducing valve group schematic diagram；
Fig. 2 is the schematic diagram of U-shaped plug blades.
Specific embodiment
Below in conjunction with the accompanying drawings, the utility model is described in further detail for subordinate list and specific embodiment.
A kind of brass reducer unit, including pressure reducing valve 1, check (non-return) valve 2 and safety valve 3, wherein, pressure reducing valve 1 include first into
The mouth of a river 11, tilted-putted decompression valve body 12 and the first water outlet 13 positioned at 12 lower right of decompression valve body, check (non-return) valve 2
Including antireverse valve spool 21,22 and second water outlet 23 of connector, antireverse valve spool 21 is located at the first water outlet 13 of pressure reducing valve 1,
Connector 22 is located at 2 upper end of check (non-return) valve, and the second water outlet 23 is located at 21 side of separate antireverse valve spool on check (non-return) valve 2, safety valve
3 include the second water inlet 31, safe valve body 32 and third water outlet 33, the second water inlet 31 be located at 3 lower end of safety valve and with
22 bolt of the connector connection of check (non-return) valve 2, third water outlet 33 are located at the right side of safety valve 3.
As an improvement 3 second water inlet of safety valve, 31 outer wall is equipped with the first annular groove 34 for placing sealing ring 4,
34 upside of first annular groove of 3 second water inlet of safety valve, 31 outer wall is equipped with another second annular groove 35, check (non-return) valve 2
22 side wall of connector be equipped with circumferentially arcuate notch 25, circumferentially arcuate notch 25 on 2 connector 22 of check (non-return) valve axially and radially
It is all symmetrical, stainless steel plug blades 5 are inserted into 35 gap location of second annular groove and realize that bolt is connect in circumferentially arcuate notch 25,
Wherein, 5 shape of plug blades is the U-shaped of both sides inner wall fluted 51, and safety valve 3 can be rotated in bolt junction around reducer unit
270°。
As an improvement 1 lower end of pressure reducing valve and 2 lower end of check (non-return) valve further respectively have first interface 14 and second interface
24, pressure reducing valve 1 and check (non-return) valve 2 can carry out pressure release by first interface 14 and second interface 24 respectively or be used as multichannel valve body
Spare interface.
As an improvement the inner wall or outer wall of first interface 14 and second interface 24 are equipped with screw thread, it can be by external interior
Thread bush 61 or external external thread sleeve 62 are threadedly coupled and realize sealing.
Subtract as an improvement being also useful for sealing on 2 second water outlet 23 of 1 first water inlet 11 of pressure reducing valve and check (non-return) valve
The clamp 7 of pressure valve group, the first water inlet 11 of pressure reducing valve 1 and the second water outlet 23 of check (non-return) valve 2 and thread bush 6 connect with clamp
Contacting surface is all inclined-plane；After 1 first water inlet 11 of pipeline press-in pressure reducing valve, 2 second water outlet 23 of check (non-return) valve, thread bush 6 is compressed,
Four arms of angle of clamp 7 are gradually to the deformation of pipeline side until clamp presses completely with pipeline, and finally, reducer unit is formed with pipeline
Sealing state.
In addition, when check (non-return) valve 2 is plugged, the water pressure increase in check (non-return) valve 2, and cannot be returned to by antireverse valve spool 21
Pressure reducing valve 1, at this moment safety valve 3 start to work, in check (non-return) valve 2 water to 3 spring 36 of safety valve generate squeeze and push the spring 36
It shrinks, and then the water of check (non-return) valve 2 is made to be discharged by safety valve 3, ensure that the safety of reducer unit；But the safety in safety valve 3
The inner wall distance on spool 37 and 3 top of safety valve is fixed, and the effect that safety valve 3 depressurizes is also certain.
We pass through the effect of easing stress of this Novel pressure-reducing valve group of experimental test：Choose caliber (Nominal
Diameter, DN) it is tested for the reducer unit of DN20, the wherein nominal flow rate (Nominal Flow Rate) of the valve group
QN is 2.27m3/ h, the pressure of 1 first water inlet 11 of pressure reducing valve are 6Bar and constant, slowly open control valve make flow Q from 0 to
QN, 2 second water outlet of record check (non-return) valve, 23 pressure；1 first water inlet 11 of pressure reducing valve is adjusted again to 8Bar, 16Bar and is kept not
Become, slowly opening control valve makes flow from 0 to QN, and 2 second water outlet of record check (non-return) valve, 23 pressure, the results are shown in Table 1, stops
The error of inverse 2 second water outlet of valve, 23 pressure is ± 0.15Bar, and pressure drop ratio of the water after reducer unit is up to 76%, flow
Variation pressure drop ratio is influenced it is little；But during 11 pressure of the first water inlet smaller (6Bar), flow can have pressure drop ratio slight shadow
It rings.In order to explain this problem, we further survey the flow under low intake pressure and 23 pressure of the second water outlet
Examination in the case of the setting for not changing reducer unit, reduces 11 pressure of the first water inlet to 2Bar, and result is the in table 1
One row, the pressure drop ratio of the second water outlet 23 is less than 23 pressure drop ratio of the second water outlet of high intake pressure, and flow can be to pressure drop
Than there is significant impact.It is presumed that due to there are friction, reducer unit pressure under low voltage situations is inadequate, can not make to subtract
The spring 15 of pressure valve 1 moves, only when the water in 1 first water inlet 11 of water inlet pipe and pressure reducing valve gathers and is increased to certain hydraulic pressure
After could push the spring 15,11 pressure of the first water inlet at this time is more than 11 pressure of former first water inlet, and makes the second water outlet
23 pressure drop ratios reduce；When flow is relatively low, water is in water pipe and slower, the hydraulic pressure change with the accumulation in 1 first water inlet 11 of pressure reducing valve
Change also relatively slowly, and test in water and contain air, in 1 spring of pressure reducing valve, 15 motion process, the air of accumulation can make 1 bullet of pressure reducing valve
Spring 15 revert to relaxed state and closing passage, and the water of the first water inlet 11, which needs to gather supercharging again, could pass through pressure reducing valve
1.Therefore, the effect of easing stress of the reducer unit of the utility model description is notable, and under the conditions of different tube diameters, has minimum use
Pressure requirements just can guarantee the effect of decompression.
DN20 reducer unit water outlet pressure under the different inlet pressures of table 1 and flow
| Pressure reducing valve water inlet pressure | Check (non-return) valve water outlet pressure (Q=0) | Check (non-return) valve water outlet pressure (Q=QN) |
| 2Bar | 1.8Bar | 0.8Bar |
| 6Bar | 2.2Bar | 1.9Bar |
| 8Bar | 3Bar | 3Bar |
| 16Bar | 3.8Bar | 3.8Bar |
The present embodiment is not formed and the utility model is protected only to facilitate understand the technical solution of the utility model
The limitation of range, it is every without departing from technical solutions of the utility model perhaps according to the technical essence of the utility model to more than
Any simple modification, equivalent change and modification that scheme is made, still falls within scope of protection of the utility model.
Claims (6)
1. a kind of Novel pressure-reducing valve group, including pressure reducing valve (1), check (non-return) valve (2) and safety valve (3), it is characterised in that：The decompression
Valve (1) includes the first water inlet (11), decompression valve body (12) and the first water outlet positioned at decompression valve body (12) side
(13), the check (non-return) valve (2) includes antireverse valve spool (21), connector (22) and the second water outlet (23), wherein, antireverse valve spool
(21) at the first water outlet (13) of pressure reducing valve (1), separate check (non-return) valve of the second water outlet (23) on check (non-return) valve (2)
Core (21) side, the safety valve (3) include the second water inlet (31), safe valve body (32) and third water outlet (33),
In, the second water inlet (31) is connect with connector (22) bolt of check (non-return) valve (2).
2. a kind of Novel pressure-reducing valve group according to claim 1, it is characterised in that：(3) second water inlet of safety valve
(31) outer wall is equipped with the first annular groove (34) for placing sealing ring (4), and the of safety valve (3) second water inlet (31) outer wall
Second annular groove (35) is equipped on the upside of one annular groove (34), check (non-return) valve (2) connector (22) side wall is equipped with circumferential arc
V notch v (25) is inserted into plug blades (5) in the circumferentially arcuate notch (25) and second annular groove (35) gap location and realizes institute
The bolt connection stated, wherein, plug blades (5) shape is U-shaped for both sides inner wall fluted (51)；The safety valve (3) can insert
It is rotated at pin connection around reducer unit.
3. a kind of Novel pressure-reducing valve group according to claim 1, it is characterised in that：Pressure reducing valve (1) lower end and non-return
Valve (2) lower end further respectively has first interface (14) and second interface (24), and pressure reducing valve (1) and check (non-return) valve (2) can pass through respectively
First interface (14) and second interface (24) carry out pressure release or are used as the spare interface of multichannel valve body.
4. a kind of Novel pressure-reducing valve group according to claim 3, it is characterised in that：The first interface (14) and second connects
The inner wall or outer wall of mouth (24) are equipped with thread bush (6), can pass through external inner screw sheath (61) or external external thread sleeve (62) carries out
It is threadedly coupled.
5. a kind of Novel pressure-reducing valve group according to claim 4, it is characterised in that：(1) first water inlet of pressure reducing valve
(11) it is equipped with (2) second water outlet (23) of check (non-return) valve for the clamp (7) that seals reducer unit, the first of pressure reducing valve (1)
The second water outlet (23) of water inlet (11) and check (non-return) valve (2) and the contact surface of thread bush (6) and clamp (7) are all inclined-plane.
6. a kind of Novel pressure-reducing valve group according to claim 2, it is characterised in that：The material of the reducer unit is closed for copper
Gold or stainless steel, the material of the plug blades (5) is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721246101.2U CN207539396U (en) | 2017-09-27 | 2017-09-27 | A kind of Novel pressure-reducing valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721246101.2U CN207539396U (en) | 2017-09-27 | 2017-09-27 | A kind of Novel pressure-reducing valve group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207539396U true CN207539396U (en) | 2018-06-26 |
Family
ID=62608925
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721246101.2U Active CN207539396U (en) | 2017-09-27 | 2017-09-27 | A kind of Novel pressure-reducing valve group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207539396U (en) |
-
2017
- 2017-09-27 CN CN201721246101.2U patent/CN207539396U/en active Active
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