CN109340407A - Right angle ball valve with decompression function - Google Patents
Right angle ball valve with decompression function Download PDFInfo
- Publication number
- CN109340407A CN109340407A CN201811073889.0A CN201811073889A CN109340407A CN 109340407 A CN109340407 A CN 109340407A CN 201811073889 A CN201811073889 A CN 201811073889A CN 109340407 A CN109340407 A CN 109340407A
- Authority
- CN
- China
- Prior art keywords
- valve
- spool
- pressure
- fluid inlet
- right angle
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000006837 decompression Effects 0.000 title claims abstract description 23
- 239000012530 fluid Substances 0.000 claims abstract description 53
- 239000011159 matrix material Substances 0.000 claims abstract description 4
- 238000007789 sealing Methods 0.000 claims description 18
- 239000011229 interlayer Substances 0.000 claims description 3
- 230000004087 circulation Effects 0.000 description 3
- 238000005192 partition Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/10—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with two or more closure members not moving as a unit
- F16K11/105—Three-way check or safety valves with two or more closure members
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/0473—Multiple-way safety valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/04—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded
- F16K17/048—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side spring-loaded combined with other safety valves, or with pressure control devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
- F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K27/00—Construction of housing; Use of materials therefor
- F16K27/08—Guiding yokes for spindles; Means for closing housings; Dust caps, e.g. for tyre valves
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Taps Or Cocks (AREA)
Abstract
The present invention relates to a kind of right angle ball valve with decompression function.It includes the valve body with valve chamber, the different directions of valve chamber are provided with fluid inlet and fluid outlet, the spool rotated by handle drives is provided in valve chamber, the spool runner that fluid inlet and fluid outlet can be linked up in specific rotation angle is provided on spool, the rotation of spool being capable of opening and closing of fault fluid inlet；Valve body is also connected with relief valve；The pressure release runner for linking up fluid inlet and pressure release valve inlet is provided in the matrix of valve body.Invention can be provided with pressure relief capability when ball valve is closed and is opened, and it is compact-sized, small in size, use reliability is high.
Description
Technical field
The present invention relates to the valve controlled for fluid, specifically a kind of right angle ball valve with decompression function.
Background technique
Valve of the ball valve relative to other control pipeline medium circulations, has many advantages, such as that resistance of medium is small, easy to operate.Especially
It is right angle ball valve, in some size-constrained corner locations, has installation dimension compact, the neat and artistic advantage of shape.In
State's patent 201620147991.0 discloses a kind of right angle ball valve, valve body, water inlet pipe, valve rod, core including having outlet pipe
And handle, inner end is connect with core after valve rod is fed through valve body, and valve rod outer end is connect with handle, and water inlet pipe is connected to valve body phase
For the side of core, valve outer wall is additionally provided with locating piece, and there are two be symmetrical arranged and rotate with locating piece for setting on handle
The locating slot of abutting.By realizing that handle continuous rotation can realize opening and closing valve body in one direction, compared with prior art
The pipeline of valve body connection is influenced smaller；And locating piece can be very good to determine whether core opening and closing is thorough, and it is easy to operate.
However, in practical applications, when this ball valve is installed in the equipment or pipeline of closed system, cut-off equipment or
In pipeline when the flowing of medium, generally require to carry out pressure release to the closed system, to guarantee that pressure medium exists in equipment and pipeline
It sets under pressure, protects equipment and pipeline, prevent accident.Therefore it needs to install relief valve additional while mounting ball valve,
But there is the occasion of considered critical in duct length size, install relief valve additional and limited and be difficult to realize by space, even if external reluctantly
Pipeline has installed relief valve additional, also results in the defect that installation volume is excessive, inconvenient to use, reliability is low.
Chinese patent 201220688956.1 discloses a kind of ball valve with pressure release, including valve body, valve chamber, import and goes out
Mouthful, it is equipped with rotatable spool in valve chamber, is equipped with the circulation passage that can be connected to inlet and outlet in spool, valve body is externally provided with rotation
Handle is additionally provided with the pressure release entrance being connected with valve chamber on valve body, and connection pressure release entrance and circulation passage are additionally provided on spool
Pressure release passage, the outer wall of valve body are equipped with pressure release valve seat, pressure-releasing chamber, one end of pressure-releasing chamber and pressure release entrance are equipped in pressure release valve seat
It is connected, the other end is equipped with pressure relief vent, and it is equipped with partition in pressure-releasing chamber, valve opening is equipped in partition, is equipped with a valve rod in valve opening,
And valve rod can slide in valve opening, one end end of valve rod is equipped with piston, and the end of piston is enclosed on pressure release entrance, valve rod
On be set with the spring being supported between partition and piston.Ball valve and relief valve are combined into one by the structure, and structure is compacter,
It is small in size.However, the program is only in the open state in valve, when entrance and exit connection, pressure-releasing chamber could communication medium
Channel, decompression function is effective, when ball valve core is in close state, by reserving pressure release in pressure-releasing chamber side to the ball valve core
Access opening, decompression function also can only distich pass ball valve outlet section pressure medium it is effective, can not be to the entrance closed by ball valve
The pressure medium of preceding closed state plays the role of pressure release.And actual conditions many places are in ball valve core and close, to close side
Medium need the condition of decompression protection.Chinese patent 201510696470.0 discloses a kind of safe ball with decompression function
Similarly there is drawbacks described above in valve.
Summary of the invention
The technical problem to be solved by the invention is to provide one kind to be provided with pressure release energy when ball valve is closed and is opened
Power, and compact-sized, small in size, the high right angle ball valve with decompression function of use reliability.
Right angle ball valve with decompression function of the invention includes the valve body with valve chamber, and the different directions of valve chamber are provided with fluid
Entrance and fluid outlet are provided with the spool rotated by handle drives in valve chamber, and being provided on spool can be in specific rotation angle
The spool runner of fluid inlet and fluid outlet is linked up when spending, the rotation of spool being capable of opening and closing of fault fluid inlet；Valve body is also
It is connected with relief valve；The pressure release runner for linking up fluid inlet and pressure release valve inlet is provided in the matrix of valve body.
A preferred embodiment of the invention is: being closed on the outside of fluid inlet by upper end cover, is equipped with to enter with fluid in upper end cover
The inflow hole that mouth communicates；Pressure release notch is provided on inflow hole side wall, the pressure release runner passes through pressure release notch and fluid inlet phase
It is logical；Upper end cover lower end protrude into fluid inlet and with spool by upper seal it is in sealing contact.
Another preferred embodiment of the invention is: being closed on the outside of fluid inlet by upper end cover, fluid inlet inner end is fixed
Sealing shroud is installed, sealing shroud inside is in sealing contact by upper seal with spool；Gap between upper end cover and sealing shroud with
The pressure release runner communicates.
It is further preferred that the pressure release runner is the several segments arc interlayer positioned at body cavity periphery.
It is further preferred that the valve body lower portion connection has the lower cover of pressure-releasing chamber, relief valve is installed in pressure-releasing chamber；Institute
Pressure release runner is stated to be connected to by pressure-releasing chamber with pressure release valve inlet.
Further, valve body lower portion is provided with the pressure relief opening communicated with pressure-releasing chamber, pressure relief opening and spool runner when spool is opened
It communicates, pressure relief opening is closed by spool when spool is closed.
Further, spool and pressure relief opening inside are in sealing contact by lower seal.
Further, lower cover and valve body are an entirety.
Further, the valve body of relief valve and lower cover are an entirety.
The present invention installs right-angle valve and relief valve on a valve body concentratedly, compact-sized, small in size；And it seals
Link is few, high reliablity；Simultaneously because fluid inlet portion is communicated with pressure-releasing chamber always by interior pressure release runner, ensure that straight
Angle valve is opened and closed into the function of being provided with decompression protection.
Detailed description of the invention
Fig. 1 is the axial sectional view of right-angle valve open state in the embodiment of the present invention one；
Fig. 2 is the A of Fig. 1 to cross-sectional view；
Fig. 3 is the axial sectional view of right angle valve closing state in the embodiment of the present invention one；
Fig. 4 is the B of Fig. 3 to cross-sectional view；
Fig. 5 is the exploded perspective figure of the embodiment of the present invention one；
Fig. 6 is the upper end cover lateral plan of the embodiment of the present invention one；
Fig. 7 is the cross-sectional view of the embodiment of the present invention two；
Fig. 8 is the cross-sectional view of the embodiment of the present invention three.
Specific embodiment
Below with reference to embodiment, specific embodiments of the present invention will be further explained.
As shown in Figure 1, shown in Figure 5, which includes the valve with valve chamber to the embodiment of the present invention one
Body 1, the different directions of valve chamber are provided with fluid inlet 11 and fluid outlet 12, are provided in valve chamber by the valve of the driving rotation of handle 3
Core 2 is provided with the spool runner 21 that fluid inlet 11 and fluid outlet 12 can be linked up in specific rotation angle on spool 2,
The rotation of spool 2 being capable of opening and closing of fault fluid inlet 11；Valve body 1 is also connected with relief valve 5；It is provided in the matrix of valve body 1
Link up the pressure release runner 14 of fluid inlet 11 and 5 entrance of relief valve.It is closed on the outside of fluid inlet by upper end cover 6, is set in upper end cover 6
There is the inflow hole 61 communicated with fluid inlet；Pressure release notch 62(is provided on inflow hole side wall referring to Fig. 6), the pressure release runner 14
It is communicated by pressure release notch 62 with fluid inlet 11；6 lower end of upper end cover protrudes into fluid inlet and passes through upper seal 7 with spool 2
It is in sealing contact.1 lower connecting strap of valve body has the lower cover 4 of pressure-releasing chamber 41, installs relief valve 5 in pressure-releasing chamber；The pressure release runner
14 are connected to by pressure-releasing chamber with pressure release valve inlet.Valve body lower portion is provided with the pressure relief opening 13 communicated with pressure-releasing chamber, and spool 2 is let out when opening
Pressure mouth 13 is communicated with spool runner 21, and pressure relief opening 13 is closed by spool when spool 2 is closed.Pass through on the inside of spool 2 and pressure relief opening 13
Lower seal 8 is in sealing contact.As shown in figure 5, pressure release runner 14 is the several segments arc interlayer positioned at body cavity periphery.
One course of work of embodiment is as follows:
In right-angle valve open state, as shown in Figure 1 and Figure 2, fluid inlet 11, fluid outlet 12, pressure relief opening 13 are and on spool
Spool runner 21 communicate, the 5 direct pick-up Fluid pressure of relief valve in pressure-releasing chamber, realize open state under decompression protection；
At right angle when valve closing state, as shown in Figure 3, Figure 4, fluid inlet 11 is closed by spool, fluid outlet 12 and fluid every
From fluid is realized into relief valve 5 by pressure release notch 62, pressure release runner 14 and the pressure-releasing chamber 41 on upper end cover 6 and closes shape
Decompression protection under state.
The embodiment of the present invention two is as shown in fig. 7, the difference of itself and one Fig. 4 of embodiment are: by upper end on the outside of fluid inlet
Lid 6 is closed, and fluid inlet inner end is fixedly installed with sealing shroud 9, and 9 inside of sealing shroud is connect with spool 2 by the sealing of upper seal 7
Touching；Gap between upper end cover 6 and sealing shroud is communicated with the pressure release runner 14.The fluid of its entrance enters by the gap
Pressure release runner 14 and pressure-releasing chamber 41 enter back into relief valve 5, realize the decompression protection to inlet pressure.
The embodiment of the present invention three is as shown in figure 8, the difference of itself and one Fig. 4 of embodiment are: 1 lower part of valve body does not have ditch port valve
The pressure relief opening of core runner 21 and pressure-releasing chamber 41.Relief valve 5 passes through pressure release runner 14 when spool opens or closes and incudes entrance
Fluid pressure.
Other than the structure of the embodiment shown in that figure, lower cover 4 and valve body 1 can be an entirety.The valve body of relief valve 5
With lower cover 4 or an entirety.
Claims (9)
1. a kind of right angle ball valve with decompression function, including the valve body (1) with valve chamber, the different directions of valve chamber are provided with fluid and enter
Mouthful (11) and fluid outlet (12) is provided with the spool (2) rotated by handle (3) driving in valve chamber, and spool is provided with energy on (2)
Enough spool runners that fluid inlet (11) and fluid outlet (12) are linked up in specific rotation angle, the rotation of spool (2) can
Opening and closing of fault fluid inlet (11)；It is characterized in that: valve body (1) is also connected with relief valve (5)；It is opened in the matrix of valve body (1)
There is the pressure release runner (14) of communication fluid inlet (11) Yu relief valve (5) entrance.
2. the right angle ball valve according to claim 1 with decompression function, it is characterized in that: by upper end cover on the outside of fluid inlet
(6) it closes, the inflow hole (61) communicated with fluid inlet is equipped in upper end cover (6)；Pressure release notch is provided on inflow hole side wall
(62), the pressure release runner (14) communicates by pressure release notch (62) with fluid inlet (11)；Fluid is protruded into upper end cover (6) lower end
Entrance is simultaneously in sealing contact by upper seal (7) with spool (2).
3. the right angle ball valve according to claim 1 with decompression function, it is characterized in that: by upper end cover on the outside of fluid inlet
(6) it closes, fluid inlet inner end is fixedly installed with sealing shroud (9), passes through upper seal with spool (2) on the inside of sealing shroud (9)
(7) in sealing contact；Gap between upper end cover (6) and sealing shroud is communicated with the pressure release runner (14).
4. the right angle ball valve according to claim 1 with decompression function, it is characterized in that: pressure release runner (14) is positioned at valve body
The several segments arc interlayer of inner cavity periphery.
5. the right angle ball valve according to claim 1 with decompression function, it is characterized in that: the valve body (1) lower connecting strap
There is the lower cover (4) of pressure-releasing chamber (41), relief valve (5) are installed in pressure-releasing chamber；The pressure release runner (14) is passed through pressure-releasing chamber and is let out
The connection of pressure valve entrance.
6. the right angle ball valve according to claim 5 with decompression function, it is characterized in that: valve body lower portion is provided with and pressure-releasing chamber phase
Logical pressure relief opening (13), pressure relief opening (13) is communicated with spool runner () when spool (2) is opened, pressure relief opening when spool (2) is closed
(13) it is closed by spool.
7. the right angle ball valve according to claim 6 with decompression function, it is characterized in that: in spool (2) and pressure relief opening (13)
Side is in sealing contact by lower seal (8).
8. the right angle ball valve according to claim 5 with decompression function, it is characterized in that: lower cover (4) and valve body (1) are one
A entirety.
9. the right angle ball valve according to claim 5 or 8 with decompression function, it is characterized in that: the valve body of relief valve (5) is under
End cap (4) is an entirety.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811073889.0A CN109340407A (en) | 2018-09-14 | 2018-09-14 | Right angle ball valve with decompression function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811073889.0A CN109340407A (en) | 2018-09-14 | 2018-09-14 | Right angle ball valve with decompression function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109340407A true CN109340407A (en) | 2019-02-15 |
Family
ID=65305681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811073889.0A Pending CN109340407A (en) | 2018-09-14 | 2018-09-14 | Right angle ball valve with decompression function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109340407A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081944A (en) * | 2020-09-25 | 2020-12-15 | 浙江联大阀门有限公司 | Right-angle type regulating ball valve |
| CN114017679A (en) * | 2022-01-10 | 2022-02-08 | 常州台盈塑业科技有限公司 | Self-adaptive steady-flow one-way fluid pressure regulating valve device |
| CN117379868A (en) * | 2023-12-12 | 2024-01-12 | 山西裕英永旭新材料有限责任公司 | Filter pressing tank |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2031294C1 (en) * | 1991-06-06 | 1995-03-20 | Киевское Центральное конструкторское бюро арматуростроения | Ball cock |
| JP2008169954A (en) * | 2007-01-12 | 2008-07-24 | Kitamura Valve Seizo Kk | Ball valve |
| CN201196273Y (en) * | 2008-05-22 | 2009-02-18 | 宁波华成阀门有限公司 | Switch ball valve |
| WO2012048369A1 (en) * | 2010-10-11 | 2012-04-19 | Strathbrook Industrial Services Pty Limited | A valve assembly |
| US20130014839A1 (en) * | 2011-07-15 | 2013-01-17 | Glen Calla | Security Valve |
| CN202901348U (en) * | 2012-11-27 | 2013-04-24 | 慈溪市美源净水设备有限公司 | Ball valve with pressure relief function |
| CN103946611A (en) * | 2012-02-22 | 2014-07-23 | 帕沃·艾多德维奇·麦呢科夫 | Ball valve with filter and pressure reducer |
| CN205155231U (en) * | 2015-12-03 | 2016-04-13 | 科福龙阀门集团有限公司 | Pressure balance type fixes ball valve |
| CN205371689U (en) * | 2016-02-18 | 2016-07-06 | 西诺威阀门控制（苏州）有限公司 | Ball valve pressure release structure |
| CN206572038U (en) * | 2017-03-01 | 2017-10-20 | 温州振宏阀门球体有限公司 | Extend the ball valve of filter screen service life |
| US20180112784A1 (en) * | 2015-05-13 | 2018-04-26 | Parker-Hannifin Corporation | Ball valve with pressure relief feature |
| CN209540109U (en) * | 2018-09-14 | 2019-10-25 | 镇江努塞尔热能科技有限公司 | Right angle ball valve with decompression function |
-
2018
- 2018-09-14 CN CN201811073889.0A patent/CN109340407A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| RU2031294C1 (en) * | 1991-06-06 | 1995-03-20 | Киевское Центральное конструкторское бюро арматуростроения | Ball cock |
| JP2008169954A (en) * | 2007-01-12 | 2008-07-24 | Kitamura Valve Seizo Kk | Ball valve |
| CN201196273Y (en) * | 2008-05-22 | 2009-02-18 | 宁波华成阀门有限公司 | Switch ball valve |
| WO2012048369A1 (en) * | 2010-10-11 | 2012-04-19 | Strathbrook Industrial Services Pty Limited | A valve assembly |
| US20130014839A1 (en) * | 2011-07-15 | 2013-01-17 | Glen Calla | Security Valve |
| CN103946611A (en) * | 2012-02-22 | 2014-07-23 | 帕沃·艾多德维奇·麦呢科夫 | Ball valve with filter and pressure reducer |
| CN202901348U (en) * | 2012-11-27 | 2013-04-24 | 慈溪市美源净水设备有限公司 | Ball valve with pressure relief function |
| US20180112784A1 (en) * | 2015-05-13 | 2018-04-26 | Parker-Hannifin Corporation | Ball valve with pressure relief feature |
| CN205155231U (en) * | 2015-12-03 | 2016-04-13 | 科福龙阀门集团有限公司 | Pressure balance type fixes ball valve |
| CN205371689U (en) * | 2016-02-18 | 2016-07-06 | 西诺威阀门控制（苏州）有限公司 | Ball valve pressure release structure |
| CN206572038U (en) * | 2017-03-01 | 2017-10-20 | 温州振宏阀门球体有限公司 | Extend the ball valve of filter screen service life |
| CN209540109U (en) * | 2018-09-14 | 2019-10-25 | 镇江努塞尔热能科技有限公司 | Right angle ball valve with decompression function |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112081944A (en) * | 2020-09-25 | 2020-12-15 | 浙江联大阀门有限公司 | Right-angle type regulating ball valve |
| CN114017679A (en) * | 2022-01-10 | 2022-02-08 | 常州台盈塑业科技有限公司 | Self-adaptive steady-flow one-way fluid pressure regulating valve device |
| CN117379868A (en) * | 2023-12-12 | 2024-01-12 | 山西裕英永旭新材料有限责任公司 | Filter pressing tank |
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