Efficient sealing assembly for flange five-valve group

Abstract

The utility model relates to the technical field of flange five-valve banks, in particular to an efficient sealing assembly for a flange five-valve bank, which comprises a valve seat, flange plates and a valve rod, fixing plates are fixed on two sides of the valve seat, one end of each fixing plate is communicated with the flange plates which are fixed in a butt joint mode, and the other end of each fixing plate is communicated with the valve rod. Valve rods for control and detection are arranged on the periphery of the valve seat, the outer walls of the valve rods are in threaded connection with positioning bolts, and sealing gaskets for sealing protection are fixed to the valve rods along gaps of the valve seat. The connecting disc has the beneficial effects that the connecting disc serves as a sealing protection part to restrain and protect the valve element, it is ensured that the valve element can effectively control on-off in the valve seat, meanwhile, the valve rod serves as a control element and is embedded into the valve element through the tongue block, and the requirement that the valve element is shifted through the valve rod to control the valve element subsequently is met; the sealing gasket and the sealing ring are used as sealing parts, and the valve rod and the valve seat are fully protected in a double-sealing protection mode.

Description

Technical Field

[0001] The utility model relates to the field of flange five-valve groups, in particular to a high-efficiency sealing component used for flange five-valve groups. Background Art

[0002] The five-valve group is used for direct installation with traditional flange differential pressure transmitters, and can also be directly installed with 3051CD with coplanar flanges through long bolts. The DC series five-valve group is only available in plate type (W type). The center distance of the DC five-valve group instrument interface (outlet) is 54mm, which is directly connected to the high and low pressure interfaces of the differential pressure transmitter, and is sealed by bolt compression using O-rings. Two stop valves connected to the process end are used to cut off the connection between the process fluid and the instrument. A balancing valve is located between the two stop valves to balance the high and low pressure chambers to facilitate zeroing of the differential pressure transmitter. Compared with the three-valve group, there are two more drain valves to facilitate more controllable drainage and calibration.

[0003] The existing flanged five-valve group has multiple control ends. During long-term use, its valve stem and valve core are continuously corroded by pressure and liquid, resulting in a certain gap in the connection, causing seepage and leakage, which brings troubles to users. For this reason, we propose an efficient sealing component for the flanged five-valve group. Utility Model Content

[0004] The purpose of the utility model is to provide a high-efficiency sealing component for a flange five-valve group to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: the high-efficiency sealing component for the flange five-valve group includes: a valve seat, a flange plate and a valve stem, fixed plates are fixed on both sides of the valve seat, and one end of the fixed plate is connected to a flange plate for docking and fixing, valve stems for control and detection are arranged around the valve seat, and there are five valve stems, the outer wall of the valve stem is threadedly connected with a positioning bolt, and a sealing gasket for sealing protection is fixed to the valve stem at the gap along the valve seat, the outer wall of the sealing gasket is interference-connected with a sealing ring, and the sealing ring seals and protects the gap between the valve stem and the valve seat, and a tongue block is fixed to the lower end of the valve stem.

[0006] Preferably, a valve core for controlling opening and closing is embedded in the middle of the inner wall of the valve seat, and a tongue block is embedded in the upper end of the valve core.

[0007] Preferably, a connecting disk is fixed at the connection between the valve seat and the valve core, and the valve core is embedded in the inner wall of the connecting disk.

[0008] Preferably, the outer wall of the upper end of the valve stem is distributed in a rectangular shape, and an adjusting handle is embedded in the middle of the two positioning bolts along the valve stem.

[0009] Preferably, a butt joint is fixed to the adjusting handle at the connection position along the valve stem, and the inner wall size of the butt joint matches the outer wall of the upper end of the valve stem.

[0010] Preferably, a handle is fixed to the other end of the adjusting handle, and a rubber pad is sleeved on the outer wall of the handle.

[0011] Preferably, a liquid inlet head is fixed to one end of the fixed disk, and a flange is fixed to one end of the liquid inlet head away from the fixed disk.

[0012] Preferably, a plurality of docking holes are provided on the surface of the flange, and the fixed plate is connected to the delivery pipeline flange via the liquid inlet head and the flange.

[0013] Compared with the prior art, the beneficial effects of the utility model are: the connecting disk acts as a sealing protection component to constrain and protect the valve core, ensuring that the valve core can effectively control the on and off inside the valve seat, and at the same time, its valve stem acts as a control element, embedded in the valve core through a tongue block to meet the subsequent demand of controlling the valve core by moving the valve stem to move the valve core, and its sealing gasket and sealing ring act as sealing components, and adopt a double sealing protection method to fully protect the valve stem and valve seat, and its sealing gasket is a hard sealing protection part, which is distributed along the gap between the valve stem and the valve seat, and the sealing ring acts as a flexible sealing part, which is connected to the sealing gasket by an interference connection method, and the sealing strength of the connection is high and the structure is stable, ensuring the long-term use of the entire sealing component.

[0014] The utility model proposes a high-efficiency sealing component for a flange five-valve group. The adjusting handle serves as a component for moving the valve stem. The user can align the docking head with any one of the multiple valve stems and hold the handle to easily move the valve stem under the action of the lever to meet the user's need to adjust the valve stem.

[0015] The flange plate is used as an external connection part and is connected to the conveying pipeline by flange connection. The flange connection has the advantages of high connection strength, good sealing, good shock resistance, convenient installation and disassembly, and a wide range of applicable sizes. It meets the installation and fixation requirements of the five-valve group and ensures that the entire five-valve group can be used effectively. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the fixed disk of the utility model;

[0018] Figure 3 This is a schematic diagram of the connection structure between the valve stem and the valve core of the utility model.

[0019] In the figure: 1. valve seat; 2. fixing plate; 21. liquid inlet head; 3. flange plate; 31. docking hole; 4. valve stem; 41. positioning bolt; 42. sealing gasket; 43. sealing ring; 44. tongue block; 5. adjusting handle; 51. docking joint; 52. handle; 6. valve core; 7. connecting plate. DETAILED DESCRIPTION

[0020] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] Embodiment 1

[0022] See also Figure 1-Figure 3 The utility model provides a technical solution: the high-efficiency sealing component for the flange five-valve group includes: a valve seat 1, a flange 3 and a valve stem 4, fixed disks 2 are fixed on both sides of the valve seat 1, and one end of the fixed disk 2 is connected with a flange 3 for docking and fixing, a control and detection valve stem 4 is arranged around the valve seat 1, and the valve stem 4 is provided with five valve stems, the outer wall of the valve stem 4 is threadedly connected with a positioning bolt 41, and a sealing gasket 42 for sealing protection is fixed to the valve stem 4 along the gap of the valve seat 1, the outer wall of the sealing gasket 42 is interference-connected with a sealing ring 43, and the sealing ring 43 seals and protects the gap between the valve stem 4 and the valve seat 1, and a tongue block 44 is fixed to the lower end of the valve stem 4.

[0023] Embodiment 2

[0024] On the basis of the first embodiment, a valve core 6 for controlling on-off is embedded in the middle of the inner wall of the valve seat 1, and a tongue block 44 is embedded in the upper end of the valve core 6. A connecting plate 7 is fixed at the connection between the valve seat 1 and the valve core 6, and the inner wall of the connecting plate 7 is embedded with the valve core 6. The connecting plate 7 is used as a sealing protection component to constrain and protect the valve core 6, ensuring that the valve core 6 can effectively control on-off inside the valve seat 1. At the same time, its valve stem 4 is used as a control element and is embedded in the valve core 6 through the tongue block 44 to meet the subsequent control of the valve core 6 by the valve stem 4. In order to meet the needs of the valve core 6 and ensure good sealing strength between the valve seat 1 and the valve stem 4, the sealing gasket 42 and the sealing ring 43 are used as sealing components, and double sealing protection is used to fully protect the valve stem 4 and the valve seat 1. The sealing gasket 42 is a hard sealing protection component, which is distributed along the gap between the valve stem 4 and the valve seat 1. The sealing ring 43 is a flexible sealing component and is connected to the sealing gasket 42 by an interference connection. The connection has high sealing strength and a stable structure, which ensures the long-term use of the entire sealing component.

[0025] Embodiment 3

[0026] On the basis of the second embodiment, the outer wall of the upper end of the valve stem 4 is distributed in a rectangular shape, and the valve stem 4 is embedded with an adjusting handle 5 between two positioning bolts 41, a butt joint 51 is fixed to the adjusting handle 5 at the connection of the valve stem 4, and the inner wall size of the butt joint 51 matches the outer wall of the upper end of the valve stem 4, a handle 52 is fixed to the other end of the adjusting handle 5, and a rubber pad is sleeved on the outer wall of the handle 52. The adjusting handle 5 is used as a component for moving the valve stem 4. The user can align the butt joint 51 with any one of the multiple valve stems 4, and by holding the handle 52, the valve stem 4 can be easily moved under the force of the lever to meet the requirements. In order to meet the needs of users to adjust the valve stem 4, a liquid inlet head 21 is fixed to one end of the fixed disk 2, and a flange 3 is fixed to the end of the liquid inlet head 21 away from the fixed disk 2. A plurality of docking holes 31 are provided on the surface of the flange 3. The fixed disk 2 is flange-connected to the delivery pipeline through the liquid inlet head 21 and the flange 3. The flange 3 is used as an external connecting part and is connected to the delivery pipeline through a flange connection. The flange connection has the advantages of high connection strength, good sealing, good shock resistance, convenient installation and disassembly, and a wide range of applicable sizes, which meets the installation and fixing requirements of the five-valve group and ensures that the entire five-valve group can be effectively used.

[0027] In actual use, the liquid inlet head 21 at the fixed plate 2 is connected to the delivery pipeline through the flange 3 and the docking hole 31, the screws at the connection are tightened, and the connection is checked for seepage or leakage. At this time, when the user needs to adjust the valve core 6, the user can hold the adjusting handle 5, align the docking joint 51 with the valve stem 4, close the positioning bolt 41, and move the valve stem 4. The valve stem 4 drives the tongue block 44 to deflect, thereby driving the valve core 6 to rotate. At the same time, its sealing gasket 42 and sealing ring 43 are used as sealing components, and double sealing protection is adopted to fully protect the valve stem 4 and the valve seat 1. Finally, when the adjustment is completed, the user can check whether there is any abnormality as a whole.

[0028] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-efficiency sealing assembly for a flange five-valve group, characterized by: The high-efficiency sealing component for the flange five-valve group comprises: a valve seat (1), a flange (3) and a valve stem (4); fixed disks (2) are fixed on both sides of the valve seat (1), and one end of the fixed disk (2) is connected to a flange (3) for docking and fixing; valve stems (4) for control and detection are arranged around the valve seat (1), and five valve stems (4) are arranged; the outer wall of the valve stem (4) is threadedly connected with a positioning bolt (41), and a sealing gasket (42) for sealing protection is fixed to the valve stem (4) along the gap of the valve seat (1); the outer wall of the sealing gasket (42) is interference-connected with a sealing ring (43), and the sealing ring (43) seals and protects the gap between the valve stem (4) and the valve seat (1); a tongue block (44) is fixed to the lower end of the valve stem (4).

2. The high-efficiency sealing assembly for a flange five-valve group according to claim 1, characterized in that: A valve core (6) for controlling opening and closing is embedded in the middle of the inner wall of the valve seat (1), and a tongue block (44) is embedded in the upper end of the valve core (6).

3. The high-efficiency sealing assembly for a flange five-valve group according to claim 2, characterized in that: A connecting disk (7) is fixed at the connection between the valve seat (1) and the valve core (6), and the valve core (6) is embedded in the inner wall of the connecting disk (7).

4. The high-efficiency sealing assembly for a flange five-valve group according to claim 1, characterized in that: The outer wall of the upper end of the valve stem (4) is distributed in a rectangular shape, and an adjustment handle (5) is embedded in the middle of the two positioning bolts (41) of the valve stem (4).

5. The high-efficiency sealing assembly for flange five-valve group according to claim 4, characterized in that: A butt joint (51) is fixed along the connection of the adjusting handle (5) and the valve stem (4), and the inner wall size of the butt joint (51) matches the outer wall of the upper end of the valve stem (4).

6. The high-efficiency sealing assembly for a flange five-valve group according to claim 5, characterized in that: A handle (52) is fixed to the other end of the adjusting handle (5), and a rubber pad is sleeved on the outer wall of the handle (52).

7. The high-efficiency sealing assembly for a flange five-valve group according to claim 1, characterized in that: A liquid inlet head (21) is fixed to one end of the fixed disk (2), and a flange (3) is fixed to one end of the liquid inlet head (21) away from the fixed disk (2).

8. The high-efficiency sealing assembly for a flange five-valve group according to claim 7, characterized in that: The surface of the flange (3) is provided with a plurality of docking holes (31), and the fixed plate (2) is connected to the delivery pipeline flange via the liquid inlet head (21) and the flange (3).

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