CN215410397U

CN215410397U - Automatic pressure regulating valve for sewage treatment

Info

Publication number: CN215410397U
Application number: CN202121632529.7U
Authority: CN
Inventors: 赵金凤; 高坤路
Original assignee: Nanjing Yiyun Ecological Environment Technology Co ltd
Current assignee: Nanjing Yiyun Ecological Environment Technology Co ltd
Priority date: 2021-07-19
Filing date: 2021-07-19
Publication date: 2022-01-04
Anticipated expiration: 2031-07-19

Abstract

The utility model discloses an automatic pressure regulating valve for sewage treatment. It includes the valve body, the upper and lower both sides at valve body middle part are equipped with mount pad and mount pad down respectively, install a valve rod on the mount pad down, upward be equipped with the mounting hole on the mount pad, the upper end of valve rod is passed the mounting hole and is set up the upside at last mount pad, upward be equipped with a plurality of through-holes and disk seat on the mount pad, the upper end outside cover of valve rod is equipped with the sliding sleeve, be equipped with elastic diaphragm between sliding sleeve and the disk seat, the downside of sliding sleeve is fixed with the sealing ring, and the valve rod outside of upside is equipped with one section cone angle in it, the upper end of sliding sleeve is equipped with the spring, the upper end of spring is equipped with the briquetting, the upper end sliding connection of briquetting and valve rod, the upside of disk seat is fixed with the valve gap, the middle part threaded connection of valve gap pole, one side of valve gap is connected with the pressure release pipe. The utility model can realize the effect of automatic pressure regulation, has simple structure and is convenient to overhaul and use.

Description

Automatic pressure regulating valve for sewage treatment

Technical Field

The utility model relates to the technical field of valves, in particular to an automatic pressure regulating valve for sewage treatment.

Background

The sewage treatment process includes a plurality of steps, and a plurality of devices are required to perform each step, and sewage flows among the devices depend on a water pump and a pipeline. Because the pressure of the sewage output by the water pump is unstable due to external conditions or self condition factors when the water pump works, the fluctuation phenomenon that the pressure is suddenly high and suddenly low appears, and the sewage is easy to leak under the condition of higher pressure, the existing sewage pipeline is generally only provided with valves at the positions of the water pump and equipment, and the valves only play a role of opening and closing and cannot perform pressure reduction treatment when the pressure is higher.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an automatic pressure regulating valve for sewage treatment aiming at the defects in the prior art.

In order to achieve the purpose, the utility model provides an automatic pressure regulating valve for sewage treatment, which comprises a valve body, wherein an upper mounting seat and a lower mounting seat are respectively arranged at the upper side and the lower side of the middle part of the valve body, a valve rod is arranged on the lower mounting seat, a mounting hole is formed in the upper mounting seat, the upper end of the valve rod penetrates through the mounting hole and is arranged at the upper side of the upper mounting seat, a plurality of through holes are formed in the upper mounting seat, a valve seat is connected to the periphery of the upper side of the upper mounting seat, a sliding sleeve is sleeved at the outer side of the upper end of the valve rod, an elastic membrane is arranged between the sliding sleeve and the valve seat, a sealing ring is fixed at the lower side of the sliding sleeve, a section of cone angle is arranged at the outer side of the valve rod at the inner upper side of the sliding sleeve, a pressing block is arranged at the upper end of the spring and is in sliding connection with the upper end of the valve rod, a valve cover is fixed at the upper side of the valve seat, and a pressure regulating rod is in threaded connection with a pressure regulating rod at the middle part of the valve cover, the lower end face of the pressure regulating rod is connected with the upper end face of the pressing block in a sliding mode, an avoiding hole is formed in the middle of the lower side of the pressure regulating rod, and one side of the valve cover is connected with a pressure relief pipe.

Further, the middle part of mount pad is equipped with the installing port down, the valve rod is inserted from bottom to top and is established in the installing port, be equipped with spacing step in the installing port, the lower extreme outside of valve rod be equipped with spacing step complex protruding, be equipped with the packing between the valve rod in the protruding outside and the installing port, the outside of packing is equipped with sealed clamping ring, sealed clamping ring and mount pad bolted connection down.

Furthermore, the upper mounting seat is fixed with a connecting rod, and the valve seat and the valve cover are fixed on the upper mounting seat through a nut in threaded connection at the upper end of the connecting rod.

Furthermore, a sealing gasket is arranged between the valve seat and the upper mounting seat.

Furthermore, an inlet flange and an outlet flange are respectively welded at two ends of the valve body.

Furthermore, the outer end of the pressure relief pipe is welded with a pressure relief flange.

Furthermore, a plurality of rib plates are arranged between the pressure relief pipe and the outer side of the valve cover, and the rib plates are arranged on one side perpendicular to the direction of the inlet flange and the outlet flange.

Furthermore, a guide sleeve is connected to the middle of the upper mounting plate through a bolt, the lower portion of the guide sleeve is arranged in the mounting hole, the valve rod is connected with the guide sleeve in a sliding mode, and a chamfer is arranged on the inner side of the lower end of the guide sleeve.

Furthermore, a pressure regulating hand wheel is fixed at the upper end of the pressure regulating rod.

Has the advantages that: according to the utility model, the valve rod is arranged on the valve body, the sliding sleeve and the sealing ring are arranged on the outer side of the valve rod, the sliding sleeve is connected with the valve seat through the elastic diaphragm, under the normal condition of pressure, the pressure applied to the sliding sleeve by the spring is greater than the pressure of sewage, so that the sewage is sealed in the area below the elastic diaphragm, when the pressure of the sewage is greater than the pressure of the spring, the sliding sleeve drives the sealing ring to move upwards, the sealing effect between the sealing ring and the valve rod is relieved, a pressure relief gap is generated, and therefore, a part of sewage flows out through the pressure relief pipe, the pressure of the sewage discharged from the outlet flange is reduced, the automatic pressure regulation effect is realized, the structure is simple, and the maintenance and the use are convenient.

Drawings

FIG. 1 is a schematic structural diagram of an automatic pressure regulating valve for sewage treatment according to an embodiment of the present invention.

Detailed Description

The present invention will be further illustrated with reference to the accompanying drawings and specific examples, which are carried out on the premise of the technical solution of the present invention, and it should be understood that these examples are only for illustrating the present invention and are not intended to limit the scope of the present invention.

As shown in fig. 1, an embodiment of the present invention provides an automatic pressure regulating valve for sewage treatment, which includes a valve body 1, an upper mounting seat 2 and a lower mounting seat 3 are respectively disposed on upper and lower sides of a middle portion of the valve body 1, a valve rod 4 is mounted on the lower mounting seat 4, a mounting hole is disposed on the upper mounting seat 2, and an upper end of the valve rod 4 passes through the mounting hole and is disposed on an upper side of the upper mounting seat 3. Be equipped with a plurality of through-holes 5 on last mount pad 2, sewage can enter into the region of last mount pad 2 upside from through-hole 5. Be connected with disk seat 6 around the upside of last mount pad 2, the upper end outside cover of valve rod 4 is equipped with sliding sleeve 7, is equipped with elastic diaphragm 8 between sliding sleeve 7 and the disk seat 6, and elastic diaphragm 8 can adopt natural flexible rubber or press from both sides the nitrile rubber that is equipped with the meshwork and so on. Be fixed with sealing ring 9 at the downside of sliding sleeve 7, the valve rod 4 outside of upside is equipped with one section cone angle in sliding sleeve 7, and when sliding sleeve 7 was in the lower extreme, the cooperation was sealed between sealing ring 9 and the valve rod 4, when sliding sleeve 7 upwards removed, because the cone angle effect of valve rod 4 for form the clearance that is used for the pressure release between sealing ring 9 and the valve rod 4. The upper end of the sliding sleeve 7 is provided with a spring 10, the spring 10 is sleeved on the outer side of the valve rod 4, the upper end of the spring 10 is provided with a pressing block 11, the pressing block 11 is also sleeved on the outer side of the upper end of the valve rod 4, and the section of the valve rod 4 matched with the pressing block 11 is as thick as the valve rod 4 up and down, so that the pressing block 11 is in sliding connection with the upper end of the valve rod 4. A valve cover 12 is fixed on the upper side of the valve seat 6, a pressure regulating rod 13 is in threaded connection with the middle of the valve cover 12, the lower end face of the pressure regulating rod 13 is in sliding connection with the upper end face of the pressing block 11, and an avoiding hole 29 is formed in the middle of the lower side of the pressure regulating rod 13. After installation, the spring 10 is in a compressed state, and at this time, the pressure adjusting rod 13 is rotated to move up and down on the valve cover 12, so that the pressure block 11 connected with the pressure adjusting rod moves up and down, and the pressure on the spring 10 is changed. When in use, when the sewage pressure on the lower side of the elastic diaphragm 8 is larger than the pressure applied by the spring 10, the sliding sleeve 7 moves upwards, the sewage can flow to the area between the elastic diaphragm 8 and the valve cover 12 from the gap between the sealing ring 9 and the valve rod 4, the pressure relief pipe 14 is connected to one side of the valve cover 12, and the sewage further flows out from the pressure relief pipe 14. The sewage flowing out of the pressure relief pipe 14 can be collected and then pumped into corresponding equipment.

For ease of servicing, the valve stem 4 is preferably removably mounted to the lower mounting block 3. Specifically, be equipped with installing port 15 at the middle part of lower mount pad 3, valve rod 4 is inserted from bottom to top and is established in installing port 15, in order to carry on spacingly to valve rod 4, be equipped with spacing step 16 in installing port 15, the lower extreme outside of valve rod 4 be equipped with spacing step 16 complex protruding 17, be equipped with packing 18 between valve rod 4 in the protruding 17 outside and the installing port 15, the outside of packing 18 is equipped with sealed clamping ring 19, sealed clamping ring 19 and a plurality of bolt fixed connection of lower mount pad 3 accessible, sealed clamping ring 19 presses packing 18 between valve rod 4 and installing port 15, can effectively seal, prevent sewage leakage.

In order to fix the valve seat 6 and the valve cover 12 on the upper mounting seat 2 conveniently, a connecting rod 20 is preferably fixed on the upper side of the upper mounting seat 2, connecting holes for the connecting rod 20 to pass through are formed in the valve seat 6 and the valve cover 12, an external thread structure is arranged at the upper end of the connecting rod 20, and the valve seat 6 and the valve cover 12 are fixed on the upper mounting seat 2 through a nut 21 which is connected to the upper end of the connecting rod 20 through threads. In order to prevent the leakage of the contaminated water from between the valve seat 6 and the upper mounting seat 2, a gasket 22 is preferably provided between the lower side of the valve seat 6 and the upper side of the upper mounting seat, and a rubber gasket, a teflon gasket, or the like may be used as the gasket.

To facilitate connection with a pipe, it is preferable to weld an inlet flange 23 and an outlet flange 24 at both ends of the valve body 1, respectively. A pressure relief flange 25 is also preferably welded to the outer end of the pressure relief tube 14. To improve the connection stability, a plurality of ribs 26 are preferably provided between the pressure relief tube 14 and the outside of the valve cover 12. The pressure relief pipe 14 may be provided on the side where the inlet flange 23 or the outlet flange 24 is located, preferably on the side perpendicular to the direction in which the inlet flange 24 and the outlet flange 25 are located, for ease of installation.

Preferably, the middle of the upper mounting plate 2 is connected with a guide sleeve 27 through a bolt, the guide sleeve 27 can be made of polytetrafluoroethylene, the lower portion of the guide sleeve 27 is arranged in the mounting hole, the valve rod 4 is connected with the guide sleeve 27 in a sliding mode, and a chamfer is arranged on the inner side of the lower end of the guide sleeve 27, so that the valve rod 4 can be conveniently inserted, and the valve rod 4 is prevented from being inclined and being worn due to rigid contact with the upper mounting plate 2. In order to facilitate the rotation of the pressure regulating rod 13, a pressure regulating handwheel 28 is fixed at the upper end of the pressure regulating rod 13.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that other parts not specifically described are within the prior art or common general knowledge to those of ordinary skill in the art. Without departing from the principle of the utility model, several improvements and modifications can be made, and these improvements and modifications should also be construed as the scope of the utility model.

Claims

1. An automatic pressure regulating valve for sewage treatment is characterized by comprising a valve body, wherein an upper mounting seat and a lower mounting seat are respectively arranged on the upper side and the lower side of the middle part of the valve body, a valve rod is mounted on the lower mounting seat, a mounting hole is formed in the upper mounting seat, the upper end of the valve rod penetrates through the mounting hole and is arranged on the upper side of the upper mounting seat, a plurality of through holes are formed in the upper mounting seat, a valve seat is connected to the periphery of the upper side of the upper mounting seat, a sliding sleeve is sleeved on the outer side of the upper end of the valve rod, an elastic membrane is arranged between the sliding sleeve and the valve seat, a sealing ring is fixed on the lower side of the sliding sleeve, a section of cone angle is arranged on the outer side of the valve rod on the inner upper side of the sliding sleeve, a pressing block is arranged on the upper end of the spring and is in sliding connection with the upper end of the valve rod, a valve cover is fixed on the upper side of the valve seat, and a pressure regulating rod is in threaded connection with the middle part of the valve cover, the lower end face of the pressure regulating rod is connected with the upper end face of the pressing block in a sliding mode, an avoiding hole is formed in the middle of the lower side of the pressure regulating rod, and one side of the valve cover is connected with a pressure relief pipe.

2. The automatic pressure regulating valve for sewage treatment according to claim 1, characterized in that a mounting opening is arranged in the middle of the lower mounting seat, the valve rod is inserted into the mounting opening from bottom to top, a limiting step is arranged in the mounting opening, a protrusion matched with the limiting step is arranged on the outer side of the lower end of the valve rod, a packing is arranged between the valve rod on the outer side of the protrusion and the mounting opening, a sealing press ring is arranged on the outer side of the packing, and the sealing press ring is connected with the lower mounting seat through a bolt.

3. The automatic pressure regulating valve for sewage treatment according to claim 1, wherein said upper mounting seat is fixed with a connecting rod, and said valve seat and valve cover are fixed on the upper mounting seat by a nut screwed on the upper end of the connecting rod.

4. The automatic pressure regulating valve for sewage treatment according to claim 3, wherein a sealing gasket is arranged between said valve seat and said upper mounting seat.

5. The automatic pressure regulating valve for sewage treatment according to claim 1, wherein an inlet flange and an outlet flange are welded to both ends of said valve body, respectively.

6. The automatic pressure regulating valve for sewage treatment according to claim 1, wherein a pressure relief flange is welded to the outer end of said pressure relief pipe.

7. The automatic pressure regulating valve for sewage treatment according to claim 5, wherein a plurality of rib plates are arranged between the pressure relief pipe and the outer side of the valve cover, and are arranged on one side perpendicular to the direction of the inlet flange and the outlet flange.

8. The automatic pressure regulating valve for sewage treatment according to claim 1, wherein a guide sleeve is bolted to the middle of said upper mounting plate, the lower part of said guide sleeve is disposed in the mounting hole, said valve stem is slidably connected with said guide sleeve, and the inner side of the lower end of said guide sleeve is provided with a chamfer.

9. The automatic pressure regulating valve for sewage treatment according to claim 1, wherein a pressure regulating handwheel is fixed at the upper end of the pressure regulating rod.