Pressure adjusting device for large-pipe-diameter water conveying pipeline

Abstract

The utility model discloses a pressure adjusting device for a large-pipe-diameter water conveying pipeline, and belongs to the technical field of pressure adjusting devices. A pressure adjusting device for a large-pipe-diameter water conveying pipeline comprises an electric pressure adjusting valve, valve ports are formed in the two ends of the electric pressure adjusting valve, flow blocking pieces used for buffering water flow are arranged on the inner surfaces of the valve ports, and damping pieces used for damping are fixed to the upper surface and the lower surface of the electric pressure adjusting valve. The flow choking piece comprises a supporting plate arranged on the inner surface of the electric pressure regulating valve and a flow choking cover arranged outside the supporting plate, a buffering piece used for damping is arranged between the flow choking cover and the supporting plate, and a flow choking groove used for choking flow is formed in the outer surface of the flow choking cover. The electric pressure regulating valve has the advantages that the impact of water flow pressure on the electric pressure regulating valve is relieved, and damage caused by self-vibration is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure regulating device technical field especially relates to a big pipe diameter water delivery pipeline pressure regulating device. BACKGROUND

[0002] With the advancement of industrialization, urbanization development and large water conservancy project construction, the demand for water delivery pipeline is increasing, especially for big pipe diameter water delivery pipeline. Usually in big pipe diameter water delivery pipeline, the flow speed and pressure of liquid are relatively high, so how to effectively control the pressure in the pipeline becomes very important. For big pipe diameter water delivery pipeline, pressure regulation is not only directly related to the effective use of water resources, energy saving, but also related to the service life and safe operation of the pipeline. At present, the pressure change of big pipe diameter water delivery pipeline is adjusted by using electric pressure regulating valve. However, the existing electric pressure regulating valve is easily damaged by vibration caused by pressure change of water flow during use, which may even cause damage during water pressure test. Once damaged, the equipment needs to be repaired or replaced, increasing the engineering cost. In the face of long-distance water delivery pipeline laying projects with a certain construction period, it will definitely affect the construction progress. Not only the time for repairing or replacing the equipment needs to be invested, but also the hidden labor cost. If the problem occurs under the condition of enough operation surface, the construction cost will further increase. Therefore, a big pipe diameter water delivery pipeline pressure regulating device needs to be designed to meet the relevant requirements. SUMMARY

[0003] The utility model aims at solving the problem that the pressure regulating valve used in the big pipe diameter water delivery pipeline of prior art is easily damaged by vibration, and provides a big pipe diameter water delivery pipeline pressure regulating device.

[0004] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme:

[0005] A big pipe diameter water delivery pipeline pressure regulating device, comprising an electric pressure regulating valve, both ends of the electric pressure regulating valve are provided with valve ports, the inner surface of the valve port is provided with a flow resistance piece for water flow buffering, and the upper surface and the lower surface of the electric pressure regulating valve are both fixed with a damping piece for damping.

[0006] Further, the flow resistance piece comprises a support plate arranged on the inner surface of the electric pressure regulating valve, and a flow resistance cover arranged outside the support plate, a buffer piece for damping is arranged between the flow resistance cover and the support plate, and the outer surface of the flow resistance cover is provided with a flow resistance groove for flow resistance.

[0007] Further, the cross section of the flow resistance cover is "V" shaped structure, and the buffer pieces arranged between the flow resistance cover and the support plate are arranged in annular array.

[0008] Further, the buffer piece comprises a first damper installed between the flow resistance cover and the support plate, a first spring is sleeved on the first damper, and two ends of the first spring are connected with the flow resistance cover and the support plate respectively.

[0009] Further, the buffer piece comprises a first damper installed between the flow resistance cover and the support plate, a first spring is sleeved on the first damper, and two ends of the first spring are connected with the flow resistance cover and the support plate respectively.

[0010] Further, the buffer piece comprises a first damper installed between the flow resistance cover and the support plate, a first spring is sleeved on the first damper, and two ends of the first spring are connected with the flow resistance cover and the support plate respectively.

[0011] Further, the buffer piece comprises a first damper installed between the flow resistance cover and the support plate, a first spring is sleeved on the first damper, and two ends of the first spring are connected with the flow resistance cover and the support plate respectively.

[0012] Further, the buffer piece comprises a first damper installed between the flow resistance cover and the support plate, a first spring is sleeved on the first damper, and two ends of the first spring are connected with the flow resistance cover and the support plate respectively.

[0013] Compared with the prior art, the utility model provides a big pipe diameter water pipeline pressure regulating device has the following beneficial effects:

[0014] The utility model discloses a big pipe diameter water pipeline pressure regulating device, when using, the device is connected into water pipeline, and the water flows from the valve port of both sides and flows out, and when flowing in, passes through the flow resistance piece, then enters the inside of electric pressure regulating valve, when the water flow pressure in the pipeline increases obviously, when the electric pressure regulating valve has greater impact force, the water flow first passes through the flow resistance piece, and reduces most pressure under the buffering effect of the flow resistance piece, and the vibration of the water flow in the electric pressure regulating valve due to pressure change is slowed down, thereby improving the buffering performance of the electric pressure regulating valve to the internal water flow pressure change, and damage is reduced.

[0015] Other advantages, objects and features of the utility model will be set forth in part in the specification that follows, and in part will become apparent to those skilled in the art upon examination of the following specification or can be learned by practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the whole structure schematic diagram of the utility model;

[0017] Figure 2 It is the flow resistance piece partial section schematic diagram of the utility model;

[0018] Figure 3The utility model discloses a Figure 2 The structure amplification schematic view of part A is shown in the figure.

[0019] Figure 4 The whole structure schematic view of the flow resistance piece is shown in the figure.

[0020] Figure 5 The internal structure schematic view of the shock absorbing box is shown in the figure.

[0021] Figure 6 The installation construction process schematic view is shown in the figure.

[0022] In the figure:

[0023] 1, electric pressure regulating valve; 2, pressure gauge; 3, flow resistance piece; 31, flow resistance cover; 32, support plate; 33, buffer; 331, first damper; 332, first spring; 34, flow resistance groove; 4, shock absorbing piece; 41, shock absorbing box; 42, shock absorbing block; 43, second damper; 44, guide groove; 45, guide rod; 46, second spring. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0025] Referring to Figures 1-6 The utility model discloses a large pipe diameter water pipeline pressure regulating device, including electric pressure regulating valve 1, in this application, with the valve shaft of electric pressure regulating valve 1 as the front and back direction example, the left and right ends of electric pressure regulating valve 1 are processed with valve port, and the flange is installed on the valve port, and the inner surface of valve port is installed with the flow resistance piece 3 for water flow buffering, the flow resistance piece 3 has elasticity, when using, through the flange, the device is connected to the water pipeline, and after water flow passes through the flow resistance piece 3, enters the inside of electric pressure regulating valve 1, when the water pressure in the water pipeline changes, the flow resistance piece 3 utilizes the elastic deformation to absorb the pressure produced by the water flow due to the pressure change, thereby reducing the impact of electric pressure regulating valve 1 due to the pressure change.

[0026] The flow resistance piece 3 is used for buffering the pressure change of the water flow in electric pressure regulating valve 1 by being arranged on the inner surface of the two ends of electric pressure regulating valve 1, the vibration of the water flow in electric pressure regulating valve 1 due to the pressure change is reduced, and the buffering performance of electric pressure regulating valve 1 to the pressure change of the internal water flow is improved, wherein the flow resistance piece 3 is composed of the flow resistance cover 31, the support plate 32, the buffer 33 and the flow resistance groove 34.

[0027] The upper surface and the lower surface of the electric pressure regulating valve 1 are fixedly installed with damping members 4 for damping, the damping members 4 are internally installed with damping structures, the damping structures are used for effectively absorbing mechanical energy transmitted by the electric pressure regulating valve 1 when vibrating, thereby reducing the influence of vibration on the electric pressure regulating valve 1, reducing damage of the electric pressure regulating valve 1 caused by vibration, and improving the safety of the large-diameter water pipeline passing through the electric pressure regulating valve 1 for pressure regulation.

[0028] The flow blocking member 3 comprises a support plate 32 fixedly installed on the inner surface of the electric pressure regulating valve 1, and a flow blocking cover 31 installed on the outer side of the support plate 32, and a buffer member 33 for damping is installed between the flow blocking cover 31 and the support plate 32, the buffer member 33 is an elastic member, the outer surface of the flow blocking cover 31 is processed with flow blocking grooves 34 for blocking flow, the flow blocking grooves 34 are used to increase the resistance to water flow, so that when the pressure changes, the water flow can smoothly enter the inside of the electric pressure regulating valve 1, and the pressure is transmitted to the buffer member 33 through the flow blocking cover 31.

[0029] The cross section of the flow blocking cover 31 is a "V" shaped structure, the width of the outer circular side wall of the flow blocking cover 31 is greater than the width of the inner circular side wall, and the buffer members 33 installed between the flow blocking cover 31 and the support plate 32 are arranged in a ring array, which is used to form stable elastic support between the flow blocking cover 31 and the support plate 32 from all directions.

[0030] The buffer member 33 comprises a first damper 331 fixedly installed between the flow blocking cover 31 and the support plate 32, a first spring 332 is sleeved on the first damper 331, and the two ends of the first spring 332 are fixed on the surfaces of the flow blocking cover 31 and the support plate 32, the first damper 331 and the first spring 332 are used to absorb the mechanical energy of vibration, and the first damper 331 and the first spring 332 are sleeved together, so that they can assist each other and improve the stability of support.

[0031] In the embodiment, pressure gauges 2 for water pressure monitoring are installed at both ends of the electric pressure regulating valve 1, which are used to detect the pressure change of water flow before and after flowing through the device.

[0032] The damping member 4 comprises a damping box 41 welded on the upper surface and the lower surface of the electric pressure regulating valve 1, a damping block 42 for damping is installed in the damping box 41, a second damper 43 is installed between the damping box 41 and the damping block 42, and the axis of the second damper 43 is parallel to the axis of the water flow direction of the electric pressure regulating valve 1, the second damper 43 and the damping block 42 are used to absorb the mechanical energy transmitted by the electric pressure regulating valve 1, reduce the vibration time and reduce the vibration amplitude.

[0033] The damping block 42 is provided with a guide groove 44, a guide rod 45 is movably installed in the guide groove 44, and both ends of the guide rod 45 are fixed to the inner surface of the damping box 41. The outer side of the guide rod 45 is sleeved with a second spring 46, and the second spring 46 is fixedly installed between the damping box 41 and the damping block 42. The guide rod 45 is parallel to the second damper 43, and the second spring 46 also absorbs the mechanical energy generated by the vibration through elastic deformation.

[0034] In this embodiment, the damping piece 4 composed of the damping box 41, the damping block 42, the second damper 43, the guide groove 44, the guide rod 45 and the second spring 46 absorbs the mechanical energy from the outside of the electric pressure regulating valve 1 to reduce vibration. Specifically, the damping block 42 is installed inside the damping box 41. When the damping block 42 vibrates, it first reduces vibration through the second damper 43, and the second spring 46 sleeved with the guide rod 45, so that after the displacement of the vibration of the damping block 42, the second spring 46 is reset, thereby facilitating the damping piece 4 to continuously damp the electric pressure regulating valve 1.

[0035] Working principle: before use, as shown in the installation process, Figure 6 first prepare the construction equipment and materials, then process the foundation pit and the installation position, then install the large-diameter water pipeline, and connect the device to the large-diameter water pipeline through the flange of the valve port, then debug and verify the function of the equipment, then install the protection equipment and perform corrosion protection treatment on the surface of the equipment, and finally adjust the equipment to the predetermined parameters according to the design requirements, then accept, deliver and use, and perform regular maintenance.

[0036] When in use, the water in the large-diameter water pipeline flows through the device. After the water flow passes through the flow resistance piece 3 in one valve port, it enters the inside of the electric pressure regulating valve 1 and flows out from the other side of the valve port after pressure regulation.

[0037] In this process, when the water flow pressure changes, the pressure is transmitted from the flow resistance cover to the buffer piece through the buffer piece, and the buffer piece is elastically deformed under the support of the support plate to absorb the water flow pressure, thereby reducing the impact and vibration formed inside the electric pressure regulating valve 1 after the water flow enters the electric pressure regulating valve 1.

[0038] As for the vibration already formed on the electric pressure regulating valve 1, when the vibration is transmitted to the damping piece 4, the second damper 43, the second spring 46 and the damping block 42 cooperate to absorb the mechanical energy of the vibration of the electric pressure regulating valve 1 from the outside, thereby reducing the vibration.

[0039] The above merely describes a preferred embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes to the technical scheme and the inventive concept of the present application within the technical scope disclosed by the present application, and all of them should be covered within the protection scope of the present application.

[0040] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily directed to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the person skilled in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0041] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the person skilled in the art can make changes, modifications, replacements and modifications to the above embodiments within the scope of the present application.

Claims

1. A pressure regulating device for large diameter water conveyance pipelines, characterized in that, Including electric pressure regulating valve (1), both ends of electric pressure regulating valve (1) are provided with valve port, the inner surface of valve port is provided with resistance flow piece (3) for water flow buffering, the upper surface and the lower surface of electric pressure regulating valve (1) are both fixed with damping piece (4) for damping.

2. A pressure regulating device for large diameter water conveyance pipelines according to claim 1, characterized in that, Resistance flow piece (3) includes support plate (32) arranged on the inner surface of electric pressure regulating valve (1), and resistance flow cover (31) arranged outside support plate (32), buffer (33) for damping is arranged between resistance flow cover (31) and support plate (32), the outer surface of resistance flow cover (31) is provided with resistance flow groove (34) for resistance flow.

3. A pressure regulating device for large diameter water conveyance pipelines according to claim 2, characterized in that, The cross section of resistance flow cover (31) is "V" shaped structure, the buffer (33) arranged between resistance flow cover (31) and support plate (32) is arranged in annular array.

4. A pressure regulating device for large diameter water conveyance pipelines according to claim 3, characterized in that, Buffer (33) includes first damper (331) installed between resistance flow cover (31) and support plate (32), first spring (332) is sleeved on the outer surface of first damper (331), both ends of first spring (332) are connected with resistance flow cover (31) and support plate (32) respectively.

5. A pressure regulating device for large diameter water conveyance pipelines according to claim 1, characterized in that, Damping piece (4) includes damping box (41) installed on the upper surface and the lower surface of electric pressure regulating valve (1), damping block (42) for damping is arranged in damping box (41), second damper (43) is installed between damping box (41) and damping block (42), the axis of second damper (43) coincides with the axis of electric pressure regulating valve (1).

6. A pressure regulating device for large diameter water conveyance pipelines according to claim 5, characterized in that, Damping block (42) is provided with guide groove (44), guide rod (45) is movably arranged in guide groove (44), both ends of guide rod (45) are connected with the inner surface of damping box (41), second spring (46) is sleeved on the outer side of guide rod (45), and second spring (46) is fixed between damping box (41) and damping block (42).

7. A pressure regulating device for large diameter water conveyance pipelines according to claim 6, characterized in that, The extension direction of guide rod (45) is parallel to the axial direction of second damper (43).

8. A pressure regulating device for large diameter water conveyance pipelines according to claim 1, characterized in that, Both ends of electric pressure regulating valve (1) are provided with pressure gauge (2) for water pressure monitoring.

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