CN211820988U

CN211820988U - Hand brake valve switch signal-back component

Info

Publication number: CN211820988U
Application number: CN202020353305.1U
Authority: CN
Inventors: 田承毅
Original assignee: Guangdong Moore Iot Technology Co ltd
Current assignee: Guangdong Moore Iot Technology Co ltd
Priority date: 2020-03-19
Filing date: 2020-03-19
Publication date: 2020-10-30
Anticipated expiration: 2030-03-19

Abstract

The utility model relates to a manual gate valve switch echo subassembly, including manual gate valve to and install the echo device on manual gate valve, the echo device is used for monitoring the switch state in place of manual gate valve and transmits the controller on. The manual gate valve is fixedly provided with the reply device, the reply device is simple in structure, the push rod and the valve rod in the reply device are arranged in parallel and connected, the push rod is driven to movably trigger the travel switch to feed back the opening and closing states in the full-opening and full-closing stroke of the valve rod, the correct state can be remotely monitored, and the use reliability and the safety are improved.

Description

Hand brake valve switch signal-back component

Technical Field

The utility model relates to a manual gate valve equipment field, concretely relates to manual gate valve switch echo subassembly.

Background

The opening and closing piece of the manual gate valve is a flashboard, the movement direction of the flashboard is perpendicular to the fluid direction, the gate valve can only be fully opened and fully closed and cannot be adjusted and throttled, the flashboard is provided with two sealing surfaces, and the flashboard of the wedge-type gate valve can be made into a whole, namely a rigid flashboard; the valve rod is controlled by the hand wheel to rotate, then the flashboard is lifted to open the valve, and the hand wheel is reversely adjusted to close the valve.

In the petrochemical industry, manual gate valve opens and close the important part commonly used for the oil circulation, and manual control gate valve can only differentiate the state of opening and closing entirely through feeling, causes the mistake of differentiating easily, has unpredictable influence to work.

There is a need for a signaling device installed on a manual gate valve, which can automatically monitor the stroke of a valve rod corresponding to the full-open and full-closed state of the gate valve to generate a corresponding signal for feedback, and can remotely monitor and improve the safety and the working reliability.

SUMMERY OF THE UTILITY MODEL

In order to solve the existing problem that exists among the background art, the utility model provides a manual gate valve switch echo subassembly.

The utility model adopts the following technical proposal:

manual gate valve switch signalling subassembly, include manual gate valve, and install signalling device on the manual gate valve, signalling device is used for monitoring the switch state in place of manual gate valve transmits to the controller on.

Further, manual gate valve includes the valve body, the valve body both ends are equipped with the end cover, the valve body side is equipped with the flashboard, be connected with the valve rod on the flashboard, the valve rod lower extreme is equipped with disk seat and lower disk seat, and go up the disk seat and pass through bolt-up connection with lower disk seat, it is provided with the filler to go up the disk seat upper end, the filler upper end is provided with gland, gland's lateral part with the valve rod touches and connects, the gland lower part touches and connects with the filler, gland pass through the bolt with go up disk seat upper end fastening connection, it still is equipped with the support to go up the disk seat upper end, support fixed mounting is in last disk seat upper end, the valve rod upper end is equipped with valve-stem nut, valve-stem nut fixed mounting is in the outside of valve rod.

Further, the signaling device comprises a travel switch, a push rod and a fixed shell, the bottom of the fixed shell is fixedly connected to the upper valve cover through a fixed plate, the travel switch is fixed inside the fixed shell, the push rod is connected to the top of the travel switch in a sliding mode and is fixedly connected to the top of the valve rod through a connecting rod, and the push rod is driven to move upwards to a position where the manual gate valve is triggered to close and output by the travel switch and is opened.

Further, the travel switch is a direct-acting travel switch.

Further, the filler is a flexible graphite material member.

The utility model has the advantages as follows:

the manual gate valve is fixedly provided with the reply device, the reply device is simple in structure, the push rod and the valve rod in the reply device are arranged in parallel and connected, the push rod is driven to movably trigger the travel switch to feed back the opening and closing states in the full-opening and full-closing stroke of the valve rod, the correct state can be remotely monitored, and the use reliability and the safety are improved.

Drawings

Fig. 1 is a schematic structural view of a manual gate valve switch signaling assembly according to the present invention;

fig. 2 is a schematic diagram of a travel switch control circuit.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention.

The manual gate valve can only be fully opened and fully closed, and cannot be used for throttling and adjusting, when the valve is opened, when the lifting height of the gate plate is equal to 11 times of the through diameter of the valve, a fluid channel is completely unblocked, but when the manual gate valve is operated, the position cannot be monitored, when the manual gate valve is actually used, the vertex of the valve rod is used as a mark, namely, the position which can not be opened is used as the fully opened position of the manual gate valve, when the service time of the gate valve is too long, the loss of parts can be wrong according to the judgment mode, the work is influenced, meanwhile, in order to consider that the locking phenomenon occurs in temperature change, the manual gate valve is usually opened to the vertex position, and then is rewound for 1/2-1 circle to be used as the position of the fully opened valve, and therefore, the fully opened.

When the valve is closed, the sealing surface can be sealed only by medium pressure, namely the sealing surface of the flashboard is pressed to the valve seat on the other side by the medium pressure to ensure the sealing of the sealing surface, which is called self-sealing; the existing device for controlling the opening and the closing of the valve without feedback can realize remote monitoring, and work errors easily occur to cause safety accidents.

Referring to fig. 1 and 2, the utility model provides a manual gate valve switch echo subassembly, including manual gate valve, and install echo device 1 on the manual gate valve, echo device 1 is used for the monitoring the switch state of targetting in place of manual gate valve transmits controller 2 on, and the echo subassembly is installed on manual gate valve does not influence the gate valve and installs equipment, and when manual gate valve opened completely to target in place, triggers the echo device output feedback signal and can carry out remote monitoring, effectively improves the safety in utilization.

As shown in fig. 1, further, the manual gate valve includes a valve body 3, end covers 4 are disposed at two ends of the valve body 3, a gate plate 5 is disposed at a side end of the valve body 3, a valve rod 6 is connected to the gate plate 5, a hand wheel is connected to a top of the valve rod 6, the hand wheel is rotated to control the valve rod 6 to move up and down to drive the gate plate 5 to move up and down, when the valve rod 6 reaches a topmost end, the valve rod 6 is in a fully open state, an upper valve seat 7 and a lower valve seat 8 are disposed at a lower end of the valve rod 6, the upper valve seat 7 and the lower valve seat 8 are fastened and connected by a bolt, a filler 9 is disposed at an upper end of the upper valve seat 7, the filler 9 is a flexible graphite member, and has unique; the packing machine is characterized in that a packing gland 10 is arranged at the upper end of the packing 9, the side part of the packing gland 10 is in contact with the valve rod 6, the lower part of the packing gland 10 is in contact with the packing 9, the packing gland 10 is fixedly connected with the upper end of the upper valve seat 7 through a bolt, the packing gland 10 plays a stabilizing role in the packing 9, a support 11 is further arranged at the upper end of the upper valve seat 7, the support 11 is fixedly installed at the upper end of the upper valve seat 7, a valve rod nut 12 is arranged at the upper end of the valve rod 6, the valve rod nut 12 is fixedly installed on the outer side of the valve rod 6, and the outer side of the valve rod.

In view of the above, referring to fig. 1, more importantly, the signaling back device 1 includes a travel switch 13, a push rod 14 and a fixed housing 15, the travel switch 13 is a direct-acting travel switch, wherein the fixed housing 15 is a rectangular housing and is fixedly welded to the upper valve cover 7 through a fixed plate 16, the travel switch 13 is fixed inside the fixed housing 15, the push rod 14 is slidably connected to the top of the travel switch 13 and is fixedly connected to the top of the valve rod 6 through a connecting rod 17, and the push rod 14 is driven to move upwards in an up-down moving stroke of the valve rod 6 to trigger the travel switch 13 to be closed and output a state that the manual gate valve is opened in place; as shown in fig. 2, the first contact 18 is a normally open contact, the second contact 19 is a normally closed contact, when the valve rod 6 is at the lowest end, the push rod 14 pushes the first contact 18 to break the circuit at the moment, when the hand wheel rotates to drive the valve rod 6 to rise to the topmost end, the push rod pushes the second contact 19, the circuit is communicated at the moment, a signal of full opening of the gate valve is generated to be fed back to the controller 2, so that remote monitoring is realized, the correct state of full opening and full closing can be known through feedback, the control accuracy is improved, and the safety is improved.

The utility model has the advantages that:

It will be appreciated by those skilled in the art that the invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The embodiments disclosed above are therefore to be considered in all respects as illustrative and not restrictive. All changes which come within the scope of the invention or which are equivalent to the scope of the invention are embraced by the invention.

Claims

1. Manual gate valve switch signalling subassembly, its characterized in that: the automatic control device comprises a manual gate valve and a communication device installed on the manual gate valve, wherein the communication device is used for monitoring the switch in-place state of the manual gate valve and transmitting the switch in-place state to a controller.

2. The manual gate valve switch signaling assembly of claim 1, further comprising: the manual gate valve comprises a valve body, end covers are arranged at two ends of the valve body, a flashboard is arranged at the side end of the valve body, a valve rod is connected onto the flashboard, an upper valve seat and a lower valve seat are arranged at the lower end of the valve rod, the upper valve seat and the lower valve seat are connected through bolts in a fastening mode, a filler is arranged at the upper end of the upper valve seat, a filler cover is arranged at the upper end of the filler, the side portion of the filler cover is in contact with the valve rod, the lower portion of the filler cover is in contact with the filler, the filler cover is in fastening connection with the upper end of the upper valve seat through bolts, a support is further arranged at the upper end of the upper valve seat, a valve rod nut is arranged at the upper end of the valve rod, the valve.

3. The manual gate valve switch signaling assembly of claim 2, further comprising: the signal responding device comprises a travel switch, a push rod and a fixed shell, the bottom of the fixed shell is fixedly connected to the upper valve cover through a fixed plate, the travel switch is fixed to the inside of the fixed shell, the push rod is connected to the top of the travel switch in a sliding mode and is fixedly connected to the top of a valve rod through a connecting rod, and the push rod is driven to move upwards to trigger the closed output manual gate valve of the travel switch to be opened in place in the vertical moving stroke of the valve rod.

4. The manual gate valve switch signaling assembly of claim 3, further comprising: the travel switch is a direct-acting travel switch.

5. The manual gate valve switch signaling assembly of claim 2, further comprising: the filler is a flexible graphite material component.