CN218440659U

CN218440659U - Emptying valve for suspension type centrifugal blower

Info

Publication number: CN218440659U
Application number: CN202222663162.6U
Authority: CN
Inventors: 苏振华
Original assignee: Jiangsu Ruihua Top Environmental Protection Technology Co ltd
Current assignee: Jiangsu Ruihua Top Environmental Protection Technology Co ltd
Priority date: 2022-10-10
Filing date: 2022-10-10
Publication date: 2023-02-03
Anticipated expiration: 2032-10-10

Abstract

The utility model discloses a blow-down valve for floated centrifugal blower, which comprises a valve body, the valve barrel, the case, the valve rod, the roof, the rubber diaphragm, the apron, discharge valve, solenoid valve and choke valve, valve rod and roof are connected, the roof is located the valve body, be equipped with the guide pin bushing in the valve body, the valve rod inserts in the guide pin bushing, the bottom at the valve body is installed to the valve barrel, the upper end at the valve barrel is installed to the case, the upper end center department at the case is installed to the bottom of valve rod, the lower extreme setting of rubber diaphragm is on the roof, the upper end at the rubber diaphragm is pressed to the apron, the border and the valve body of apron and rubber diaphragm pass through bolted connection, the exhaust hole and the discharge valve of apron are connected, discharge valve is connected with the solenoid valve, the solenoid valve is connected with the choke valve, the utility model discloses greatly reduced suspension fan takes place the condition of surge.

Description

Emptying valve for suspension type centrifugal blower

Technical Field

The utility model relates to an atmospheric valve field specifically is an atmospheric valve for floated centrifugal blower.

Background

If the external pressure suddenly increases when the suspension centrifugal blower is started or operated, the fan can not output air quantity or output air quantity very little, the fan can be caused to surge at the moment, huge damage or even damage is brought to the fan, and the emptying valve device is added to prevent the fan from being started or play a role in protecting the fan when high pressure is met. The existing emptying valves are all of switch type, namely, the emptying valves are opened or closed, and the air volume of the emptying and pressure relief valves cannot be adjusted. There are many situations in sewage treatment aeration application, because the air film ageing resistance is very big causes the air current to hardly break through the micropore of diaphragm when the fan starts, and when atmospheric valve closed immediately this moment, the flow suddenly reduces, and the pressure rises violently, and the fan takes place the surge. On one hand, the fan fails to start, and on the other hand, parts such as a bearing, an impeller and the like of the fan are seriously damaged.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a blow-down valve for floated centrifugal blower, the condition of surge takes place for greatly reduced suspension fan.

In order to solve the technical problem, the utility model discloses a technical scheme be:

the utility model discloses an atmospheric valve for floated centrifugal blower, which comprises a valve body, the valve barrel, and a valve core, the valve rod, the roof, the rubber diaphragm, the apron, discharge valve, solenoid valve and choke valve, valve rod and roof are connected, the roof is located the valve body, be equipped with the guide pin bushing in the valve body, the valve rod inserts in the guide pin bushing, the bottom at the valve body is installed to the valve barrel, the upper end at the valve barrel is installed to the case, the upper end center department at the case is installed to the bottom of valve rod, the lower extreme setting of rubber diaphragm is on the roof, the upper end at the rubber diaphragm is pressed to the apron, the border and the valve body of apron and rubber diaphragm pass through bolted connection, the exhaust hole and the discharge valve of apron are connected, discharge valve is connected with the solenoid valve, the solenoid valve is connected with the choke valve.

Further, the number of the electromagnetic valves is 2, each electromagnetic valve comprises a first electromagnetic valve and a second electromagnetic valve, the exhaust valve is connected with the first electromagnetic valve, the first electromagnetic valve is connected with the throttle valve, the throttle valve is connected with the second electromagnetic valve, and the second electromagnetic valve is connected with an outlet of the fan.

Furthermore, the device also comprises a travel switch and a travel control rod, wherein the travel control rod is connected with the upper end of the valve rod, the top of the travel control rod is positioned at the upper end of the cover plate, and the travel switch is positioned on one side of the travel control rod.

Furthermore, the valve body comprises an air inlet cavity and an air outlet cavity, the air outlet cavity is located on the side face of the air inlet cavity, a guide sleeve mounting piece is arranged on the air inlet cavity, the guide sleeve is mounted on the guide sleeve mounting piece, and the guide sleeve penetrates through the guide sleeve mounting piece.

Further, case and valve barrel are the solid of revolution, and the case includes case and side valve core, goes up the case and is circular, and the valve barrel includes air inlet portion, valve barrel connecting portion and case connecting portion, and case connecting portion are connected with air inlet portion, and valve barrel connecting portion are located the junction of air inlet portion and case connecting portion, and the bottom of side case is located the inboard of case connecting portion, and side case and case connecting portion are the round platform structure, and the valve barrel connecting portion are installed at the chamber lower extreme that admits air.

Furthermore, a sealing ring mounting groove is formed in the outer side of the side valve core.

Furthermore, the lower end of the air inlet cavity is provided with a retainer ring installation groove for a hole.

Furthermore, the valve body and the cover plate are made of Q235, the valve core is made of cast aluminum alloy, the valve rod is made of 45# steel, the top plate is made of an aluminum plate, and the valve sleeve is made of ball-milling cast iron.

The utility model has the advantages that:

through changing the structure of case, valve barrel, adopt the sealed form of conical surface, improve the linear relation of case stroke and exhaust pressure release, can make atmospheric valve slowly close, open rapidly, with the fan start, stop the operating mode and require very laminating, can more effectively protect the safety of fan, the problem of surge takes place when effectively having solved the fan and having started.

Drawings

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

Fig. 1 is a perspective view of an embodiment of the present invention.

Fig. 2 is a schematic view of an embodiment of the present invention.

Fig. 3 is a perspective view of the valve body removed according to an embodiment of the present invention.

Fig. 4 is a schematic view of a valve body according to an embodiment of the present invention.

Fig. 5 is a schematic view of a valve body according to an embodiment of the present invention.

Fig. 6 is a schematic view of a valve core according to an embodiment of the present invention.

Fig. 7 is a schematic view of a valve core according to an embodiment of the present invention.

Fig. 8 is a schematic view of a valve housing according to an embodiment of the present invention.

Fig. 9 is a schematic view of a valve housing according to an embodiment of the present invention.

Fig. 10 is a schematic view of a rubber diaphragm according to an embodiment of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations. Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiment of the present invention, all other embodiments obtained by the person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in the figure, the utility model discloses a blow-down valve for floated centrifugal blower, including valve body 1, valve barrel 2, case 3, valve rod 4, roof 5, rubber diaphragm 6, apron 7, discharge valve 8, solenoid valve and choke valve 9, valve rod 4 and roof 5 are connected, roof 5 is located valve body 1, be equipped with guide pin bushing 10 in the valve body 1, valve rod 4 inserts in guide pin bushing 10, the bottom at valve body 1 is installed to valve barrel 2, the upper end at valve barrel 2 is installed to case 3, the upper end center department at case 3 is installed to valve rod 4's bottom, the lower extreme setting of rubber diaphragm 6 is on roof 5, apron 7 presses the upper end at rubber diaphragm 6, the border of apron 7 and rubber diaphragm 6 passes through bolted connection with valve body 1, the exhaust hole and the discharge valve 8 of apron 7 are connected, discharge valve 8 is connected with the solenoid valve, the solenoid valve is connected with choke valve 9.

When the fan starts, under the normal condition the utility model discloses play the same effect with ordinary atmospheric valve. But the function of the common emptying valve can not ensure the normal starting of the fan when the starting pressure is higher.

For the utility model discloses, when starting pressure is higher, pass through solenoid valve, choke valve with the same compressed air of fan export, slowly get into the diaphragm seal chamber between rubber diaphragm 6 and the apron 7, compressed gas is constantly full of the diaphragm seal chamber, because two chamber area size differences, makes rubber diaphragm 6 drive roof 5 and removes, and roof 5 constantly pushes away valve rod 4 and removes, and then changes 2 flow area of valve barrel, closes up to final valve barrel 2.

The utility model can slowly close and rapidly open the emptying valve, and is very suitable for the working condition requirements of starting and stopping the fan, thereby more effectively protecting the safety of the fan;

the emptying valve can realize two-section type slow closing, and effectively solves the problems of high pressure of the aeration membrane during aging and starting and difficult fan starting; and a pressure release valve is not required to be additionally arranged on the pipeline, so that manual operation is reduced.

The utility model discloses broken the technical bottleneck that present atmospheric valve does not have the regulation type.

The utility model discloses an in the embodiment, the solenoid valve is equipped with 2, and the solenoid valve includes solenoid valve 11 and two 12 of solenoid valve, and discharge valve 8 is connected with solenoid valve 11, and solenoid valve 11 is connected with choke valve 9, and choke valve 9 is connected with two 12 of solenoid valve, and two 12 of solenoid valve are connected with fan export A.

And the second electromagnetic valve 12 can be powered off to continuously close the valve sleeve 2 according to the requirement until the valve sleeve is tightly closed. Thus, the requirement of working conditions when the fan is started can be met. When the machine is stopped, the first electromagnetic valve 11 loses power, the diaphragm sealing cavity is decompressed, and gas in the diaphragm sealing cavity is rapidly discharged from the rapid exhaust valve 8, so that the emptying valve is immediately opened.

The utility model discloses an embodiment still includes travel switch 13 and stroke control pole 14, and stroke control pole 14 is connected with valve rod 4 upper end, and stroke control pole 14's top is located the upper end of apron 7, and stroke switch 13 is located one side of stroke control pole 14. In combination with the proximity switch 13, in the whole operation process of the valve rod 4, the second electromagnetic valve 12 is electrified to cut off the outlet a of the fan and the diaphragm sealing cavity, so that air supply to the diaphragm sealing cavity is stopped, and the valve core 3 and the valve sleeve 2 keep relative positions.

The utility model discloses an in the embodiment, valve body 1 includes air inlet chamber 101 and goes out air chamber 102, goes out air chamber 102 and is located the side of air inlet chamber 101, is equipped with guide pin bushing installation piece 15 on the air inlet chamber 101, and guide pin bushing 10 is installed on guide pin bushing installation piece 15, and guide pin bushing 10 passes guide pin bushing installation piece 15. The guide bush mounting piece 15 is used for mounting the guide bush 10.

In an embodiment of the present invention, the valve element 3 and the valve sleeve 2 are a rotating body, the valve element 3 includes an upper valve element 31 and a side valve element 32, the upper valve element 31 is circular, the valve sleeve 2 includes an air inlet portion 21, a valve sleeve connecting portion 22 and a valve element connecting portion 23, the valve element connecting portion 23 is connected with the air inlet portion 21, the valve sleeve connecting portion 22 is located at the joint of the air inlet portion 21 and the valve element connecting portion 23, the bottom of the side valve element 32 is located at the inner side of the valve element connecting portion 23, the side valve element 32 and the valve element connecting portion 23 are both in a circular truncated cone structure, and the valve sleeve connecting portion 22 is installed at the lower end of the air inlet cavity 101. The valve core 3 and the valve sleeve 2 adopt a conical surface sealing form, so that the linear relation between the valve core stroke and the exhaust pressure relief is improved.

In an embodiment of the present invention, a sealing ring mounting groove 321 is disposed outside the side valve core 32. The seal ring is mounted in the seal ring mounting groove 321, thereby improving the sealing property.

In an embodiment of the present invention, the lower end of the air intake chamber 101 is provided with a hole retainer ring mounting groove 1011.

The utility model discloses an in the embodiment, the material of valve body and apron is Q235, and the material of case is the casting aluminum alloy, and the material of valve rod is 45# steel, and the material of roof is aluminum plate, and the material of valve barrel is ball-milling cast iron.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. The utility model provides an atmospheric valve for floated centrifugal blower, a serial communication port, which comprises a valve body, the valve barrel, and a valve core, the valve rod, the roof, the rubber diaphragm, the apron, discharge valve, solenoid valve and choke valve, valve rod and roof are connected, the roof is located the valve body, be equipped with the guide pin bushing in the valve body, the valve rod inserts in the guide pin bushing, the bottom at the valve body is installed to the valve barrel, the upper end at the valve barrel is installed to the case, the upper end center department at the case is installed to the bottom of valve rod, the lower extreme setting of rubber diaphragm is on the roof, the apron is pressed in the upper end of rubber diaphragm, the border and the valve body of apron and rubber diaphragm pass through bolted connection, the exhaust hole and the discharge valve of apron are connected, discharge valve is connected with the solenoid valve, the solenoid valve is connected with the choke valve.

2. The blow-down valve for a suspension type centrifugal blower according to claim 1, wherein there are 2 solenoid valves, the solenoid valves include a first solenoid valve and a second solenoid valve, the exhaust valve is connected with the first solenoid valve, the first solenoid valve is connected with a throttle valve, the throttle valve is connected with the second solenoid valve, and the second solenoid valve is connected with a blower outlet.

3. The vent valve for a centrifugal blower of the suspension type as set forth in claim 1 further comprising a travel switch and a travel control rod, the travel control rod being connected to an upper end of the valve stem, a top portion of the travel control rod being located at an upper end of the cover plate, the travel switch being located at a side of the travel control rod.

4. The vent valve for a centrifugal blower according to claim 1, wherein the valve body comprises an inlet chamber and an outlet chamber, the outlet chamber is located at a side of the inlet chamber, the inlet chamber is provided with a guide sleeve mounting plate, the guide sleeve is mounted on the guide sleeve mounting plate, and the guide sleeve penetrates through the guide sleeve mounting plate.

5. The emptying valve for a suspended centrifugal blower as claimed in claim 4, wherein the valve core and the valve sleeve are both a rotary body, the valve core comprises an upper valve core and a side valve core, the upper valve core is circular, the valve sleeve comprises an air inlet portion, a valve sleeve connecting portion and a valve core connecting portion, the valve core connecting portion is connected with the air inlet portion, the valve sleeve connecting portion is located at the connecting position of the air inlet portion and the valve core connecting portion, the bottom of the side valve core is located on the inner side of the valve core connecting portion, the side valve core and the valve core connecting portion are both in a circular truncated cone structure, and the valve sleeve connecting portion is mounted at the lower end of the air inlet cavity.

6. The flare valve for a floating centrifugal blower of claim 5, wherein the side spool is provided with a gasket mounting groove on the outside.

7. The vent valve for a centrifugal blower of the suspension type as set forth in claim 5 wherein the lower end of the inlet chamber is provided with a retainer ring installation groove for the bore.

8. The vent valve for a centrifugal blower of the suspension type as set forth in claim 1, wherein the valve body and the cover plate are made of Q235, the valve core is made of cast aluminum alloy, the valve stem is made of 45# steel, the top plate is made of aluminum plate, and the valve sleeve is made of ball-milled cast iron.