CN211820876U - Flange type two-valve group - Google Patents
Flange type two-valve group Download PDFInfo
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- CN211820876U CN211820876U CN202020412146.8U CN202020412146U CN211820876U CN 211820876 U CN211820876 U CN 211820876U CN 202020412146 U CN202020412146 U CN 202020412146U CN 211820876 U CN211820876 U CN 211820876U
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Abstract
The utility model relates to a flange type two-valve group, which comprises a valve body, wherein a flange face inlet and a first outlet are arranged on the valve body, an isolation valve is arranged in a first valve cavity arranged in the valve body, the isolation valve comprises a first valve cap, a first valve rod and a first gland, the bottom of the first valve cap is provided with at least two bolts, the end parts of the bolts are embedded into the first valve cap and penetrate through the first gland, a second valve cavity and a second outlet which are communicated with the first valve cavity and the first outlet are arranged in the valve body, a discharge valve is arranged on the second valve cavity, the discharge valve comprises a second valve rod, a second valve cap and a second gland which are positioned outside the second valve rod, a two-valve group structure is formed by the isolation valve and the discharge valve in one valve body, the two-valve group structure is matched with various pressure gauges or pressure transmitters for installation and use, the two-valve group structure can bear the high temperature and high pressure of fluid media in, the operation is simple and convenient, and the device is suitable for media such as water, gas, oil products, water vapor and the like.
Description
Technical Field
The utility model relates to a two valves of flange formula belongs to valve technical field.
Background
Differential pressure transmitter is arranged in preventing the medium in the pipeline from directly getting into the changer, lean on filling fluidic capillary between pressure sensing diaphragm and the changer to couple together, thereby measure liquid, the liquid level of gas or steam, flow and pressure, differential pressure transmitter is just, negative pressure chamber switches on or cuts off through keeping apart the stop valve break-make with the pressure point of drawing, but isolation valve structure among the prior art is difficult to bear high temperature high pressure, lack the online inspection of instrument simultaneously, the check function, need extra connecting tube and valve structure, there is loaded down with trivial details installation, the cost is higher, overall structure occupation space is great after the installation, the inconvenient defect of operation.
SUMMERY OF THE UTILITY MODEL
The utility model aims at prior art's defect, provide a two valves of flange formula, constitute two valves structures by isolation valve and discharge valve in a valve body, use with the supporting installation of various manometer or pressure transmitter, can bear the fluidic medium high temperature high pressure in the valve body to save pipeline structure, compact overall structure, on-line inspection, check, mark or the blowdown is washed, easy operation facilitates the use, is applicable to media such as water, gas, oil, steam.
The utility model discloses a realize through following technical scheme:
a flange type two-valve group comprises a valve body, wherein a flange face inlet and a first outlet are formed in the valve body, a first valve cavity communicated with the flange face inlet and the first outlet is formed in the valve body, an isolation valve is arranged in the first valve cavity, the isolation valve comprises a first valve cap, a first valve rod and a first gland, the bottom of the first valve cap is embedded into the first valve cavity and fixed with the valve body, at least two bolts with ends embedded into the first valve cap, penetrating through the first gland and provided with hexagon nuts are arranged at the bottom of the first valve cap, the bottom of the first valve rod is arranged at the bottom of the first valve cavity, the end of the first valve rod penetrates through the first valve cap and the first gland and provided with a first handle, a plurality of first packing materials are arranged between the exterior of the first valve rod and the first valve cap, and the outer wall of the first valve rod is in threaded fit;
a second valve cavity and a second outlet which are communicated with the first valve cavity and the first outlet are arranged in the valve body, a discharge valve is arranged on the second valve cavity and comprises a second valve rod, and the first valve rod and the second valve rod respectively comprise a lower valve rod and an upper valve rod, wherein the lower valve rod is coaxially connected with the upper valve rod, and the outer diameter of the upper valve rod is larger than that of the lower valve rod;
the bleeder valve is still including being located outside second valve cap and the second gland of second valve stem, second valve cap bottom embedding second valve pocket, and fixed with the valve body, be equipped with a plurality of second packings between inside and the second valve stem of second valve cap, be equipped with the packing clamping ring between a plurality of second packings and the second gland, second gland outer wall and first valve cap screw-thread fit are connected, and second gland inner wall and second valve stem screw-thread fit are connected, and second valve stem tip stretches out in the second gland and is equipped with the second handle.
The utility model has the advantages that:
(1) the two valve groups are matched with various pressure gauges or pressure transmitters for use and can be used for controlling opening and closing of pipeline media, the first valve cap of the isolation valve is fixedly connected with the first gland through bolts, the first valve rod and the second valve rod comprise a lower valve rod and an upper valve rod with a larger diameter, the high temperature and high pressure of fluid media in the valve body can be borne, the torque is larger, the opening and closing are convenient, and the first filler or the second filler can be replaced online when fluid is not communicated and no pressure exists;
(2) the flange surface inlet and the first outlet are connected with a measuring chamber or a pipeline of a pressure gauge or a pressure transmitter and a pressure leading point, the isolating valve is used for total connection or disconnection, the second valve cavity is connected with a flow channel between the first valve cavity and the first outlet by opening and closing the discharge valve, online inspection, check, calibration or pollution discharge flushing is carried out, the operation is simple and convenient, two valve group structures are formed by the isolating valve and the discharge valve in one valve body, so that the pipeline structure is saved, the integral structure is compact, and the valve is suitable for media such as water, gas, oil products, water vapor and the like.
Drawings
Fig. 1 is a structural diagram of the present invention.
Fig. 2 is a view showing the construction of the H-direction isolation valve of fig. 1.
Fig. 3 is a cross-sectional view in the direction AA of fig. 2.
Fig. 4 is a diagram illustrating the medium circulation structure inside the valve body according to the present invention.
The labels in the figure are: the valve comprises a valve body 1, a flange face inlet 4 and a first outlet 5, a first valve cavity 6, an isolation valve 2, a first valve cap 21, a first valve rod 22 and a first gland 23, a hexagon nut 7, a bolt 8, an inner hexagon socket head cap screw 9, a sealing gasket 10, a spring gasket 11, a first handle 12, a first packing 13, a packing gasket 14, a second valve cavity 15 and a second outlet 16, a discharge valve 3, a lower valve rod 17, an upper valve rod 18, a second valve rod 31, a second valve cap 32 and a second gland 33, a positioning pin 19, a second packing 20, a packing press ring 24 and a second handle 25.
Detailed Description
The following describes the present invention with reference to the accompanying drawings.
A flange type two-valve group comprises a valve body 1, wherein a flange face inlet 4 and a first outlet 5 are arranged on the valve body 1, a first valve cavity 6 communicated with the flange face inlet 4 and the first outlet 5 is arranged in the valve body 1, an isolation valve 2 is arranged in the first valve cavity 6, the isolation valve 2 comprises a first valve cap 21, a first valve rod 22 and a first gland 23, and the bottom of the first valve cap 21 is embedded into the first valve cavity 6 and fixed with the valve body 1;
the bottom of the first valve cap 21 is provided with at least two bolts 8, the end parts of the bolts are embedded into the first valve cap 21, penetrate through the first gland 23 and are provided with hexagon nuts 7, a plurality of inner hexagon cylindrical head screws 9 are arranged between the first valve cap 21 and the valve body 1, a sealing gasket 10 is arranged between the first valve cap 21 and the first valve cavity 6, and spring washers 11 are arranged between the inner hexagon cylindrical head screws 9 and the first valve cap 21 and between the hexagon nuts 7 and the first gland 23;
the bottom of the first valve rod 22 is arranged at the bottom of the first valve cavity 6, the end part of the first valve rod 22 penetrates through the first valve cap 21 and the first gland 23 and is provided with a first handle 12, a plurality of first packing 13 are arranged between the outside of the first valve rod 22 and the first valve cap 21, the outer wall of the first packing 13 is in threaded fit with the first gland 23, and annular packing gaskets 14 with L-shaped sections are arranged among the first packing 13, the first valve cap 21 and the first gland 23;
a second valve cavity 15 and a second outlet 16 which are communicated with the first valve cavity 6 and the first outlet 5 are arranged in the valve body 1, a discharge valve 3 is arranged on the second valve cavity 15, the discharge valve 3 comprises a second valve rod 31, and the first valve rod 22 and the second valve rod 31 both comprise a lower valve rod 17 and an upper valve rod 18, the lower valve rod 17 and the upper valve rod 18 are coaxially connected, and the outer diameter of the upper valve rod is larger than that of the lower valve rod 17;
the discharge valve 3 further comprises a second valve cap 32 and a second gland 33 which are positioned outside the second valve rod 31, the bottom of the second valve cap 32 is embedded into the second valve cavity 15 and is fixed with the valve body 1, the outer wall of the bottom of the second valve cap 32 is in threaded fit with the second valve cavity 15, and a positioning pin 19 is arranged between the second valve cap 32 and the valve body 1;
be equipped with a plurality of second packings 20 between inside and the second valve stem 31 of second valve cap 32, be equipped with packing clamping ring 24 between a plurality of second packings 20 and the second gland 33, second gland 33 outer wall is connected with first valve cap 21 screw-thread fit, and second gland 33 inner wall is connected with second valve stem 31 screw-thread fit, and second valve stem 31 tip stretches out in second gland 33 and is equipped with second handle 25.
The utility model discloses a theory of operation does:
after the sealing gasket 10 is installed in the first valve cavity 6, the bottom of the first valve cap 21 is embedded into the top of the first valve cavity 6 of the sealing gasket 10, the first valve cap 21 and the valve body 1 are screwed in through a plurality of inner hexagonal socket head screws 9, the first valve cap 21 and the valve body 1 are fixedly connected, the spring washer 11 prevents connection abrasion, and the bottom of the bolt 8 is embedded into the first valve cap 21, so that the bolt 8 is convenient to install and compact in structure.
The inverted L-shaped packing gasket 14 is embedded into the first bonnet 21, then the first packings 13 are installed, the tops of the first packings 13 are pressed through the regular L-shaped packing gasket 14, the second gland 33 presses the packing gasket 14, the sealing effect with the first valve rod 22 is achieved, the structural manufacturing of the first bonnet 21 and the first gland 23 is facilitated, and meanwhile leakage is prevented.
The lower valve rod 17 with the smaller diameter is adopted, the high temperature and the high pressure of the fluid medium in the valve body 1 can be borne, the first valve rod 22 and the second valve rod 31 further comprise the upper valve rod 18 with the larger diameter and connected with the lower valve rod 17, when the upper valve rod 18 is connected with the first handle 12 or the second handle 25, the torque is larger, and the opening and closing actions are convenient to drive.
The bottom of the second valve cap 32 of the discharge valve 3 is fixedly connected with the second valve cavity 15 through thread fit, the positioning pin 19 is inserted between the valve body 1 and the second valve cap 32 to limit, prevent the second valve cap 32 from deflecting, and be connected quickly and fixedly, and is sequentially installed and sleeved on a plurality of second packing 20 and packing press rings 24 outside the second valve rod 31, and the second packing 20 is compressed through the thread fit connection of the outer wall of the second press cover 33 and the first valve cap 21, so that the sealing effect of the second valve rod 31 is achieved.
The two valve sets are matched with various pressure gauges or pressure transmitters for use and can be used for controlling the opening and closing of a pipeline medium. The flange surface inlet 4 and the first outlet 5 are connected with a measuring chamber or a pipeline of a pressure gauge or a pressure transmitter and a pressure guide point, the isolation valve 2 is used for total connection or disconnection, and the second valve cavity 15 is communicated with a flow passage between the first valve cavity 6 and the first outlet 5 by opening and closing the discharge valve 3 so as to open the second outlet 16 for online inspection, check, calibration or pollution discharge flushing, the operation is simple and convenient, and the first filler 13 or the second filler 20 can be replaced online when no fluid flows in the valve body 1 and no pressure exists.
The working principle of the isolation valve 2 is as follows: the first handle 12 is rotated clockwise to drive the upper valve rod 18 and the lower valve rod 17 of the first valve rod 22 to rotate synchronously, the upper valve rod 18 descends along the first gland 23 under the action of thread matching with the first gland 23 until the lower valve rod 17 is tightly attached and closed with the first valve cavity 6, and the isolating valve 2 cuts off the paths of the flange surface inlet 4 and the first outlet 5; the first handle 12 is rotated anticlockwise to drive the first valve rod 22 to rise along the first gland 23, the lower valve rod 17 of the first valve rod 22 is separated from the end face of the first valve cavity 6 to open a passage, the valve tip of the lower valve rod 17 can be sealed by a spherical surface or a conical surface, the first valve cap 21 and the first gland 23 are fixedly connected through a bolt 8, and the medium high pressure resistance 900RTJ and the medium temperature are-90-200 ℃.
The functioning principle of the discharge valve 3 is: the second handle 25 is rotated clockwise to drive the second valve rod 31 to descend along the second gland 33 under the threaded fit, and the lower valve rod 17 of the second valve rod 31 and the second valve cavity 15 are closed to cut off the passage where the discharge valve 3 is located; after the isolating valve 2 is opened, the second handle 25 is rotated anticlockwise to drive the second valve rod 31 to ascend along the second gland 33 under the threaded fit, the passage from the downstream of the isolating valve 2 to the second valve cavity 15 and the second outlet 16 is opened, and the other guiding medium or the sewage is flushed, so that in sum, two valve group structures are formed by the isolating valve 2 and the discharge valve 3 in the valve body 1, so that the pipeline structure is saved, the integral structure is compact, and the valve is suitable for media such as water, gas, oil and water vapor.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (6)
1. A flange type two-valve group comprises a valve body, wherein a flange face inlet and a first outlet are arranged on the valve body, a first valve cavity communicated with the flange face inlet and the first outlet is arranged in the valve body, an isolation valve is arranged in the first valve cavity, and the two-valve group is characterized in that the isolation valve comprises a first valve cap, a first valve rod and a first gland, the bottom of the first valve cap is embedded into the first valve cavity and fixed with the valve body, the bottom of the first valve cap is provided with at least two bolts, the ends of the bolts are embedded into the first valve cap and penetrate through the first gland, hexagon nuts are arranged at the bottom of the first valve rod, the end of the first valve rod penetrates through the first valve cap, the first gland and is provided with a first handle, a plurality of first packing materials are arranged between the outside of the first valve rod and the first valve cap, the outer wall of the first valve cap is in threaded fit with the first gland, a second valve cavity communicated with the first valve cavity and the first, and the second valve cavity is provided with a discharge valve, and the discharge valve comprises a second valve rod.
2. The flange type two-valve group according to claim 1, wherein a plurality of hexagon socket head cap screws are arranged between the first valve cap and the valve body, sealing gaskets are arranged between the first valve cap and the first valve cavity, and spring washers are arranged between the hexagon socket head cap screws and the first valve cap and between the hexagon nut and the first gland.
3. A flange type two valve group according to claim 1, characterized in that annular packing gaskets with L-shaped cross section are arranged between the first packing and the first bonnet and the first gland.
4. A flanged two-valve group according to claim 1, wherein the first and second valve stems each comprise a lower stem coaxially connected to each other and an upper stem having an outer diameter greater than the outer diameter of the lower stem.
5. The flange type two-valve group according to any one of claims 1 to 4, wherein the discharge valve further comprises a second valve cap and a second gland which are located outside the second valve stem, the bottom of the second valve cap is embedded into the second valve cavity and fixed with the valve body, a plurality of second packing materials are arranged between the inside of the second valve cap and the second valve stem, a packing ring is arranged between the plurality of second packing materials and the second gland, the outer wall of the second gland is connected with the first valve cap in a threaded fit mode, the inner wall of the second gland is connected with the second valve stem in a threaded fit mode, and the end portion of the second valve stem extends out of the second gland and is provided with a second handle.
6. A flange type two valve group according to claim 5, characterized in that the outer wall of the bottom of the second valve cap is in threaded fit with the second valve cavity, and a positioning pin is arranged between the second valve cap and the valve body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020412146.8U CN211820876U (en) | 2020-03-27 | 2020-03-27 | Flange type two-valve group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020412146.8U CN211820876U (en) | 2020-03-27 | 2020-03-27 | Flange type two-valve group |
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| Publication Number | Publication Date |
|---|---|
| CN211820876U true CN211820876U (en) | 2020-10-30 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020412146.8U Active CN211820876U (en) | 2020-03-27 | 2020-03-27 | Flange type two-valve group |
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| CN (1) | CN211820876U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701845A (en) * | 2021-07-15 | 2021-11-26 | 湖南铱镝艾姆流体科技有限公司 | High-pressure integrated two-valve set and liquid level measurement system |
-
2020
- 2020-03-27 CN CN202020412146.8U patent/CN211820876U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113701845A (en) * | 2021-07-15 | 2021-11-26 | 湖南铱镝艾姆流体科技有限公司 | High-pressure integrated two-valve set and liquid level measurement system |
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