CN217355713U - Safety valve for dry ash media - Google Patents

Abstract

The utility model relates to a safety valve for dry ash medium, which comprises an installation pipe joint, a valve body assembly and a pressure-adjustable safety valve core assembly. It leads to the pressure relief valve hole; the side wall of the support pipe is provided with a pressure relief through hole, and the pressure regulating valve plate and the pressure relief valve plate are respectively installed on the upper and lower ports of the support pipe, and are assembled into a whole by assembling screws and nuts; The safety valve plate of the pressure-adjustable safety valve core assembly is blocked on the pressure relief valve hole of the pressure relief valve plate. The safety valve plate is connected with one end of the push spring, and the other end of the push spring is connected with the adjustment bolt. The pressure bolt is installed on the pressure regulating valve plate, and the compression amount of the push spring can be adjusted by rotating the pressure regulating nut, thereby adjusting the safe pressure relief value of the safety valve plate. The utility model designs a safety valve according to the conveying condition of the dry ash medium in the pressure conveying pipeline, which can not only improve the safety of the dry ash medium pipeline conveying system, but also has the advantages of convenient adjustment, maintenance and repair.

Description

Safety valve for dry ash media

technical field

The utility model belongs to a safety valve of an ash storage system, in particular to a safety valve of a dry ash medium.

Background technique

The high-temperature flue gas discharged from the boiler of the coal-fired power plant is recycled through the air preheater, and the air preheater is equipped with a low-temperature heat transfer system. These flakes and large particles of impurities and debris will be continuously transported to the ash warehouse with the fly ash pressure feeding pipeline, which is easy to cause the ash warehouse to be unsmooth and the sorting equipment is often jammed and blocked. The fly ash pressure feeding pipeline belongs to the pressure pipeline. Poor feeding or blockage will easily lead to the continuous increase of the gas pressure in the pipeline. Once the pressure is too high, the safety accident of pipeline burst is likely to occur. For the sake of safety, a corresponding safety valve should be designed according to the transportation of the dry ash medium in the pressure feeding pipeline to ensure the safety of the pipeline transportation of the dry ash medium.

Utility model content

Based on the above-mentioned deficiencies of the prior art, the utility model provides a safety valve for dry ash medium. The safety valve is designed according to the transportation condition of the dry ash medium in the pressure feeding pipeline, which can not only improve the pipeline transportation of dry ash medium The safety of the system also has the advantages of convenient adjustment, maintenance and repair.

The technical scheme of the utility model is as follows: a safety valve for dry ash medium, comprising an installation pipe joint, a valve body assembly and a pressure-adjustable safety valve core assembly, wherein the upper end of the installation pipe joint is connected with the valve body assembly, the The adjustable pressure relief valve plug assembly is mounted on the valve body assembly, where:

The valve body assembly includes a pressure relief valve plate, a support pipe and a pressure regulating valve plate; a pressure relief valve hole is provided in the middle of the pressure relief valve plate, and the upper end of the installation pipe joint is fixed on the pressure relief valve plate, and is provided with a pressure relief valve plate. leading to the pressure relief valve hole; a pressure relief through hole is opened on the side wall of the support pipe, and the pressure regulating valve plate and the pressure relief valve plate are respectively installed on the upper and lower ports of the support pipe;

The pressure-adjustable safety valve core assembly includes a safety valve plate, a push spring and a pressure-adjusting bolt; the safety valve plate is sealed on the pressure relief valve hole of the pressure relief valve plate, and the safety valve plate is connected to the push spring. The other end of the push spring is connected with the adjusting bolt, the pressure regulating bolt is installed on the pressure regulating valve plate, and the compression amount of the pushing spring can be adjusted by rotating the pressure regulating nut, thereby adjusting the safety valve Safe pressure relief value for the board.

Preferably, the peripheral parts of the pressure regulating valve plate and the pressure relief valve plate are provided with connection holes correspondingly, and are assembled into a whole by assembling screws and nuts.

Preferably, the cross section of the support pipe is cylindrical or rectangular, and pressure relief through holes communicating with the outside atmosphere are provided at intervals on the side wall of the support pipe.

Preferably, an elastic sealing gasket is installed on the valve port of the pressure relief valve hole.

Preferably, a locking nut is provided on the end of the pressure regulating bolt extending upward from the pressure regulating valve plate.

Preferably, the outer circumference of the push spring is surrounded by a soft sheath.

Preferably, the upper end of the soft sheath is fixed near the connection between the push spring and the pressure regulating bolt; the lower end of the soft sheath is fixed near the connection between the push spring and the safety valve plate.

The beneficial effect of the utility model is that: the utility model designs a safety valve according to the conveying condition of the dry ash medium in the pressure conveying pipeline, which can be used in various pressure conveying systems, and is especially suitable for the pressure of the dry ash medium. Conveyor system. When the pressure in the pressure conveying system is greater than the set safe pressure relief value, the safety valve plate will jump up automatically, so as to realize the automatic opening of pressure relief and prevent the occurrence of safety accidents. Therefore, the utility model can not only improve the safety of the dry ash medium pipeline transportation system, but also has the advantages of simple structure, convenient manufacture, assembly and maintenance, sensitive pressure relief action, convenient adjustment, maintenance and repair.

Description of drawings

FIG. 1 is a schematic structural diagram of the safety valve of the dry ash medium in the embodiment.

In the figure: 1—Installation pipe joint, 2—Relief valve plate, 3—Support pipe, 4—Assembly screw, 5—Pressure regulating valve plate, 6—Pressure relief through hole, 7—Safety valve plate, 8—Jumping Spring, 9—pressure adjusting bolt, 10—locking nut, 11—soft sheath, 12—valve hole, 13—elastic sealing washer.

Detailed ways

In order to make the technical content of the present utility model understandable to those of ordinary skill in the technical field, the present utility model is described in detail below with reference to the accompanying drawings.

As shown in FIG. 1 , the safety valve for dry ash medium of the present invention includes an installation pipe joint 1, a valve body assembly and a pressure-adjustable safety valve core assembly. The upper end of the installation pipe joint 1 is connected with the valve body assembly, so The pressure-adjustable safety valve core assembly is installed on the valve body assembly, wherein:

The valve body assembly includes a pressure relief valve plate 2 , a support pipe 3 , an assembly screw 4 and a pressure regulating valve plate 5 .

A pressure relief valve hole 12 is provided in the middle of the pressure relief valve plate 2 , and the upper end of the installation pipe joint 1 is welded on the pressure relief valve plate 2 and leads to the pressure relief valve hole 12 .

A plurality of pressure relief through holes 6 are evenly opened on the side wall of the support tube 3 . More specifically, the cross section of the support pipe 3 is cylindrical or rectangular, and pressure relief through holes 6 communicating with the outside atmosphere are provided on the side wall of the support pipe 3 at uniform intervals.

The pressure regulating valve plate 5 and the pressure relief valve plate 2 are provided with mounting bosses, and the bosses are matched with the ports of the support pipe 3, that is, the pressure regulating valve plate 5 and the pressure relief valve plate 2 are respectively installed On the upper and lower ports of the support tube 3.

The peripheral parts of the pressure regulating valve plate 5 and the pressure relief valve plate 2 are correspondingly provided with connecting holes, and the pressure regulating valve plate 5 and the pressure relief valve plate 2 are assembled into a whole by assembling screws and nuts.

The pressure-adjustable safety valve core assembly includes a safety valve plate 7 , a push spring 8 and a pressure-adjusting bolt 9 .

The safety valve plate 7 is blocked on the pressure relief valve hole 12 of the pressure relief valve plate 2 , and an elastic sealing gasket 13 is also installed on the valve port of the pressure relief valve hole 12 .

The safety valve plate 7 is connected with one end of the push spring 8 , and the other end of the push spring 8 is connected with the lower end of the adjustment bolt 9 .

The pressure regulating bolt 9 is installed on the pressure regulating valve plate 5, and the upper end of the pressure regulating bolt 9 penetrates upwardly out of the pressure regulating valve plate 5, and the upper end thereof is provided with a rotating operation head, and the pressure regulating bolt 9 extends upward. A locking nut 10 is provided on the end of the pressure regulating valve plate. By rotating the rotary operation head at the upper end of the pressure regulating nut 9, the pressure regulating nut 9 can be moved up and down, and the compression amount of the push spring 8 can be adjusted, so that the safety pressure relief value of the safety valve plate 7 at the lower end of the push spring 8 can be adjusted. After adjustment, the pressure regulating bolt 9 can be locked by the locking nut 10 to avoid loosening.

The outer circumference of the push spring 8 is surrounded by a soft sheath 11 . The upper end of the soft sheath 11 is fixed near the connection between the push spring 8 and the pressure regulating bolt 9 , and the lower end of the soft sheath 11 is fixed near the connection between the push spring 8 and the safety valve plate 7 .

The utility model can not only improve the safety of the dry ash medium pipeline conveying system, but also has the advantages of simple structure, convenient manufacture, assembly and maintenance, sensitive pressure relief action, convenient adjustment, maintenance and repair.

The above descriptions are only the embodiments of the present invention, and are not intended to limit the scope of the patent of the present invention. Any equivalent structure or equivalent process transformation made by using the contents of the description and drawings of the present invention, or directly or indirectly applied to other Relevant technical fields are included in the scope of patent protection of the present invention.

Claims (7)

1. A safety valve for dry ash medium, comprising an installation pipe joint, a valve body assembly and a pressure-adjustable safety valve core assembly, wherein the valve body assembly comprises a pressure relief valve plate, a support pipe and a pressure regulating valve plate The middle part of the pressure relief valve plate is provided with a pressure relief valve hole, the upper end of the installation pipe joint is fixed on the pressure relief valve plate, and leads to the pressure relief valve hole; the side wall of the support pipe is provided with a relief valve hole; a pressure through hole, the pressure regulating valve plate and the pressure relief valve plate are respectively installed on the upper and lower ports of the support pipe; The pressure-adjustable safety valve core assembly includes a safety valve plate, a push spring and a pressure-adjusting bolt; the safety valve plate is sealed on the pressure relief valve hole of the pressure relief valve plate, and the safety valve plate is connected to the push spring. The other end of the push spring is connected with the adjusting bolt, the pressure regulating bolt is installed on the pressure regulating valve plate, and the compression amount of the pushing spring can be adjusted by rotating the pressure regulating nut, thereby adjusting the safety valve Safe pressure relief value for the board. 2 . The safety valve for dry ash medium according to claim 1 , wherein the peripheral parts of the pressure regulating valve plate and the pressure relief valve plate are correspondingly provided with connecting holes, which are assembled into a whole by assembling screws and nuts. 3 . 3 . The safety valve for dry ash medium according to claim 1 , wherein the cross-section of the support pipe is cylindrical or rectangular, and the side wall of the support pipe is provided with a pressure relief that communicates with the outside atmosphere at intervals. 4 . through hole. 4 . The safety valve for dry ash medium according to claim 1 , wherein an elastic sealing gasket is installed on the valve port of the pressure relief valve hole. 5 . 5 . The safety valve for dry ash medium according to claim 1 , wherein a locking nut is provided on the end of the pressure regulating bolt extending upward from the pressure regulating valve plate. 6 . 6 . The safety valve for dry ash medium according to claim 1 , wherein the outer periphery of the push spring is surrounded by a soft sheath. 7 . 7 . The safety valve for dry ash medium according to claim 6 , wherein the upper end of the soft sheath is fixed near the connection between the push spring and the pressure regulating bolt; the lower end of the soft sheath It is fixed near the connection between the push spring and the safety valve plate.

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