Double-tray gas pressure regulator
By setting up a double pallet structure on the diaphragm of the gas pressure regulator and setting arc reinforcement ribs on the pallet, the problem of insufficient stiffness of the existing gas pressure regulator is solved, and higher stiffness and thinner thickness are achieved Pallet design reduces manufacturing costs.
Patent Information
- Application Number
- CN202421364603.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-16
- Publication Date
- 2025-02-11
- Estimated Expiration
- 2034-06-16
AI Technical Summary
The pallet stiffness of existing gas pressure regulators is insufficient, resulting in deformation under high pressure conditions, affecting the performance of the pressure regulator.
A double pallet structure is adopted, with an upper and lower pallets arranged on the top and bottom of the diaphragm respectively, and a flange and arc-shaped reinforcement ribs are provided on the top and bottom surfaces of the tray to form an interlaced mesh arrangement to improve the stiffness of the pallet.
Through the dual pallet structure and curved reinforcement design, the stiffness of the pallet is improved, and can withstand higher pressure, reduce pallet thickness, reduce manufacturing costs, and avoid displacement of the end of the adjustment spring due to uneven stress. question.
Smart Images
Figure CN222458504U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of gas transmission and distribution equipment, and in particular relates to a double-tray gas pressure regulator. Background Art
[0002] The gas pressure regulator is the main equipment in the gas transmission and distribution process. The gas pressure regulator is a device that automatically adjusts the gas outlet pressure to stabilize it within a certain pressure range. The gas pressure regulator mostly uses a diaphragm to measure the change of the outlet pressure. The structure of the gas pressure regulator includes an upper shell and a lower shell. A diaphragm with a tray is arranged between the upper shell and the lower shell. The upper shell is provided with an adjusting spring, an adjusting nut, and an upper cover. The lower shell is provided with a connecting rod, a lever, and a valve stem. The pressure value of the adjusting spring of the upper shell on the diaphragm is set, and the gas pressure in the lower shell is compared with the pressure setting value of the adjusting spring of the upper shell on the diaphragm. The diaphragm moves up and down, and the diaphragm drives the connecting rod, lever, and valve stem connected to it to control the opening of the valve port, so that the gas pressure regulator adjusts the outlet pressure and meets the requirements of the downstream flow. In order to prevent the end of the adjusting spring from being displaced due to uneven force when the adjusting spring is compressed, this gas pressure regulator generally uses a spring seat to fix the end of the spring. The spring seat is installed above the tray and positioned at the center of the diaphragm. The spring seat and the tray are split structures, and the function of the spring seat is single. The tray is mostly made of steel plate cutting, stamping or turning. As the diameter of the tray increases or the pressure difference on both sides of the diaphragm increases, the thickness of the tray also needs to be increased, otherwise the tray will deform due to insufficient rigidity, and the force carried by the diaphragm cannot be transmitted, affecting the performance of the pressure regulator. The structure of the gas pressure regulator determines that the thickness of the tray cannot be too thick. Utility Model Content
[0003] The technical problem to be solved by the utility model is to provide a double-tray gas pressure regulator with high tray strength and thin thickness.
[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is as follows: it includes an upper shell and a lower shell, a diaphragm is arranged between the upper shell and the lower shell, the upper shell is provided with an adjusting spring, an adjusting nut and an upper cover, the lower shell is provided with a connecting rod, a lever and a valve stem, an upper tray, a pressure plate and a bolt are arranged on the top of the diaphragm, the top surface of the upper tray is provided with an upper convex circular flange and an upper convex arc-shaped reinforcement rib, a lower tray, a sealing ring and a connecting shaft are arranged below the diaphragm, the bottom surface of the lower tray is provided with a lower convex circular flange and a lower convex arc-shaped reinforcement rib, the upper circular flange and the lower circular flange match the adjusting spring, the connecting shaft is provided with a bolt hole matching the bolt and a groove matching the sealing ring, the centers of the pressure plate, the upper tray, the diaphragm and the lower tray are respectively provided with through holes, and the bolts pass through the central through holes of the pressure plate, the upper tray, the diaphragm and the lower tray from top to bottom and are connected to the connecting shaft.
[0005] Its additional technical feature is that there are six upper arc-shaped reinforcing ribs and six lower arc-shaped reinforcing ribs respectively, and the upper arc-shaped reinforcing ribs and the lower arc-shaped reinforcing ribs are arranged alternately.
[0006] The utility model provides a double-tray gas pressure regulator, which changes the original gas pressure regulator structure of a single tray on the top of the diaphragm into a double-tray structure in which an upper tray and a lower tray are respectively arranged on the top and bottom of the diaphragm. The upper tray and the lower tray are no longer planar structures. The top surface of the upper tray is provided with an upper convex circular flange and an upper convex arc-shaped reinforcement rib, and the bottom surface of the lower tray is provided with a lower convex circular flange and a lower convex arc-shaped reinforcement rib. The upper circular flange and the lower circular flange match the adjustment spring. When in use, the positions of the upper tray and the lower tray can be interchanged. The upper circular flange and the lower circular flange replace the function of the spring seat to prevent the adjustment spring from being displaced at the end of the adjustment spring due to uneven force when the adjustment spring is compressed, thereby removing the original spring seat with a single function. The upper arc-shaped reinforcement ribs and the lower arc-shaped reinforcement ribs intersect with each other and are arranged in a mesh shape, so that the rigidity of the upper tray and the lower tray assembly is increased and can withstand higher pressure. The original manufacturing process of the pallet mostly uses steel plate blanking and stamping. Now, you only need to adjust the stamping die and use the new die to stamp once to get the required circular flange and arc-shaped reinforcement ribs. No other processes are required. Under the same working conditions, the thickness of the pallet is reduced, reducing the manufacturing cost. There are six upper arc-shaped reinforcement ribs and six lower arc-shaped reinforcement ribs respectively. The upper arc-shaped reinforcement ribs and the lower arc-shaped reinforcement ribs are staggered, which has the best effect. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1 It is a structural schematic diagram of an existing gas pressure regulator;
[0008] Figure 2 This is a schematic diagram of the structure of a double-tray gas pressure regulator of the utility model;
[0009] Figure 3 is a schematic diagram of the cross-sectional structure of a pallet;
[0010] Figure 4 This is a schematic diagram of the decomposed structure of the pallet;
[0011] Figure 5 Schematic diagram of the assembly structure of the pallet. DETAILED DESCRIPTION
[0012] The specific structure of the double-tray gas pressure regulator of the utility model is further described in detail below in conjunction with the accompanying drawings.
[0013] like Figure 1As shown, the existing gas pressure regulator includes an upper shell 1 and a lower shell 2, a diaphragm 4 with a tray 3 is arranged between the upper shell 1 and the lower shell 2, the upper shell 1 is provided with a spring seat 5, an adjusting spring 6, an adjusting nut 7, and an upper cover 8, and the lower shell 2 is provided with a connecting rod 9, a lever 10, and a valve stem 11.
[0014] like Figure 2 As shown, the utility model is a double-tray gas pressure regulator with an upper shell 1 and a lower shell 2, a diaphragm 4 is arranged between the upper shell 1 and the lower shell 2, the upper shell 1 is provided with an adjusting spring 6, an adjusting nut 7, and an upper cover 8, the lower shell 2 is provided with a connecting rod 9, a lever 10, and a valve stem 11, an upper tray 12 is arranged above the diaphragm 4, and a lower tray 13 is arranged below the diaphragm 4.
[0015] like Figure 3 , Figure 4 As shown, an upper tray 12, a pressure plate 14, and bolts 15 are arranged on the top of the diaphragm 4, and an upper convex circular flange 16 and an upper convex arc-shaped reinforcing rib 17 are arranged on the top surface of the upper tray 12. A lower tray 13, a sealing ring 18, and a connecting shaft 19 are arranged below the diaphragm 4. The bottom surface of the lower tray 13 is provided with a lower convex circular flange 20 and a lower convex arc-shaped reinforcing rib 21. The connecting shaft 19 is provided with a bolt hole 22 matching the bolt 15 and a groove 23 matching the sealing ring 18. Through holes are respectively arranged in the centers of the pressure plate 14, the upper tray 12, the diaphragm 4, and the lower tray 13. The bolts 15 pass through the central through holes of the pressure plate 14, the upper tray 12, the diaphragm 4, and the lower tray 13 from top to bottom to be connected to the connecting shaft 19. There are six upper arc-shaped reinforcing ribs 17 and six lower arc-shaped reinforcing ribs 21.
[0016] like Figure 5 As shown, there are six upper arc-shaped reinforcing ribs 17 and six lower arc-shaped reinforcing ribs 21, and the upper arc-shaped reinforcing ribs 17 and the lower arc-shaped reinforcing ribs 21 are arranged alternately.
[0017] The utility model provides a double tray gas pressure regulator, which changes the original gas pressure regulator structure of setting a single tray on the diaphragm into a double tray structure of setting an upper tray 12 and a lower tray 13 on the upper and lower sides of the diaphragm 4, respectively. The upper tray 12 and the lower tray 13 are no longer planar structures. The top surface of the upper tray 12 is provided with an upper circular flange 16 convex upward and an upper arc-shaped reinforcement rib 17 convex upward, and the bottom surface of the lower tray 13 is provided with a lower circular flange 20 convex downward and a lower arc-shaped reinforcement rib 21 convex downward. The upper circular flange 16 and the lower circular flange 20 match the adjustment spring 6. When in use, the positions of the upper tray 12 and the lower tray 13 can be interchanged. The upper circular flange 16 and the lower circular flange 20 replace the function of the spring seat 5 to prevent the adjustment spring 6 from being displaced at the end of the adjustment spring 6 due to uneven force when the adjustment spring 6 is compressed, thereby removing the original spring seat 5 with a single function. The upper arc-shaped reinforcement ribs 17 and the lower arc-shaped reinforcement ribs 21 are intersected and arranged in a mesh, so that the upper tray 12 and the lower tray 13 components have increased rigidity and can withstand higher pressure. The original manufacturing process of the tray mostly uses steel plate blanking and stamping. Now, only the stamping die needs to be adjusted and the new die can be used to stamp once to obtain the required circular flange and arc-shaped reinforcement ribs. No other processes need to be added. Under the same working conditions, the thickness of the tray is reduced, reducing the manufacturing cost. The upper arc-shaped reinforcement ribs 17 and the lower arc-shaped reinforcement ribs 21 are six in number respectively, and the upper arc-shaped reinforcement ribs 17 and the lower arc-shaped reinforcement ribs 21 are staggered, which has the best effect.
[0018] The double-tray gas pressure regulator provided by the utility model is not limited to the above-mentioned structure. As long as various improvements are made using the method concept and technical solution of the utility model, or the concept and technical solution of the utility model are directly applied to other occasions without improvement, they are all within the protection scope of the utility model.
Claims
1. A double tray gas pressure regulator, comprising an upper shell and a lower shell, a diaphragm is arranged between the upper shell and the lower shell, the upper shell is provided with an adjustment spring, an adjustment nut, and an upper cover, and the lower shell is provided with a connecting rod, a lever, and a valve stem, characterized in that: An upper tray, a pressure plate, and bolts are arranged on the top of the diaphragm; a convex upper circular flange and a convex upper arc-shaped reinforcing rib are arranged on the top surface of the upper tray; a lower tray, a sealing ring, and a connecting shaft are arranged below the diaphragm; a convex lower circular flange and a convex lower arc-shaped reinforcing rib are arranged on the bottom surface of the lower tray; the upper circular flange and the lower circular flange match the adjusting spring; the connecting shaft is provided with a bolt hole matching the bolt and a groove matching the sealing ring; through holes are respectively arranged in the centers of the pressure plate, the upper tray, the diaphragm, and the lower tray; the bolts pass through the central through holes of the pressure plate, the upper tray, the diaphragm, and the lower tray from top to bottom and are connected to the connecting shaft.
2. A double tray gas pressure regulator according to claim 1, characterized in that: There are six upper arc-shaped reinforcing ribs and six lower arc-shaped reinforcing ribs respectively, and the upper arc-shaped reinforcing ribs and the lower arc-shaped reinforcing ribs are arranged alternately.