CN116146720A

CN116146720A - Safety control valve

Info

Publication number: CN116146720A
Application number: CN202310128083.1A
Authority: CN
Inventors: 高子钰; 吴晗; 黄博远; 邓博远; 王麒雄; 张月清; 高超; 臧红薇; 张裕朋; 郑卿
Original assignee: Jiangsu Jiangyuan Machinery Co ltd
Current assignee: Jiangsu Jiangyuan Machinery Co ltd
Priority date: 2023-02-17
Filing date: 2023-02-17
Publication date: 2023-05-23
Anticipated expiration: 2043-02-17
Also published as: CN116146720B

Abstract

The invention relates to the technical field of valves, in particular to a safety control valve. The shell is communicated up and down, the calandria is fixedly connected and communicated on the side wall of the shell, the main sealing shell is fixedly connected at the upper end of the shell, the shell is characterized by further comprising a center rod which is in clearance fit with the main sealing shell, the main valve is fixedly connected at the lower end of the center rod and used for separating the inside of the shell, a notch is formed in the upper side of the center rod, a safety shell is arranged on the outer cover of the shell, and a long opening is formed in the safety shell. The lifting of the central rod is controlled by the long opening of the rod-shaped member to pass through the notch so as to adjust the height of the main valve, and by utilizing the adjusting mode, a protection structure is formed, and the safety shell is also favorable for covering cotton and other heat preservation sleeves so as to preserve heat in a low-temperature environment, thereby being favorable for freezing prevention and thawing.

Description

Safety control valve

Technical Field

The invention relates to the technical field of valves, in particular to a safety control valve.

Background

The safety function of the valve is not usually as an anti-theft function, but mainly as a warning function. If the pipeline needs to be maintained, the valve must be closed for maintenance, and the valve needs to be temporarily locked to prevent careless operation of factory personnel. Meanwhile, a danger source is clear for factory personnel, and careless operation is prevented, so that the safety problem of a gate valve in engineering can be effectively solved, and under the condition that heavy objects are frequently transported in the factory environment, the heavy objects possibly fall to touch the valve by mistake, so that the valve is accidentally adjusted, and potential safety hazards are caused.

Disclosure of Invention

The invention provides a safety control valve, which aims to avoid accidental adjustment of the valve caused by foreign object touch.

The above object is achieved by the following technical scheme:

the utility model provides a safety control valve, includes the casing that switches on from top to bottom, rigid coupling and intercommunication calandria on the casing lateral wall, the main envelope of rigid coupling on the casing upper end, characterized by still includes clearance fit's central pole on the main envelope, and the rigid coupling is used for separating the inside main valve of casing at the central pole lower extreme, and the upside of central pole is equipped with the notch, and the casing outside is covered and is equipped with the containment, is equipped with the long mouth on the containment.

And the containment is also provided with pipe orifices corresponding to the positions of the calandria.

The inner wall of the shell is provided with two arc grooves which are respectively positioned at the upper side and the lower side of the calandria, and the outer ring of the main valve is fixedly connected with an air bag which can be matched in any arc groove.

And the air bag is communicated with an air inlet pipe positioned above the main valve.

The main enclosure is provided with a window positioned right above the air bag, and an auxiliary enclosure for sealing the main enclosure is detachably and fixedly connected in the window.

Still including the locating part of rigid coupling on the center pole, the base II of rigid coupling at shells inner wall, two transversely extending guide arms of clearance fit on base II, the outer end rigid coupling of guide arm has spacing portion, and the inner rigid coupling of guide arm has and moves the support, and the cover is equipped with the pressure spring on the guide arm, the both ends of pressure spring respectively with base II with move the support contact, the rigid coupling has the fixed support that is located to move the support below on the inner wall of shell, wherein the upper and lower both edges of locating part are chamfer face, and the locating part passes through chamfer face and move the support and be the face contact, and the locating part can contact with the upper end of fixed support.

The main valve is provided with a side valve port, the upper end of the containment vessel is provided with a round port, the upper end of the main valve is fixedly connected with a base I, a screw is connected to the base I through threads, the lower end of the screw is fixedly connected with an auxiliary valve, the auxiliary valve can open and close the side valve port, and the round port is positioned right above the screw.

The screw is lower than the containment vessel, and the upper end of screw is equipped with interior hexagonal groove.

A plurality of calandria are circumferentially distributed.

The calandria is provided with a valve check valve, a gate valve or a stop valve.

Drawings

FIG. 1 is a schematic diagram of the overall external structure of a safety control valve;

FIG. 2 is a schematic view of the internal structure of the containment vessel;

FIG. 3 is a schematic view of the internal structure of the housing;

FIG. 4 is a schematic structural view of a limiting member;

FIG. 5 is a schematic view of the structure of the base II, guide bar and movable support;

FIG. 6 is a schematic structural view of a retainer;

FIG. 7 is a schematic illustration of the configuration of the main valve and side ports;

fig. 8 is a schematic structural view of the airbag.

Detailed Description

The safety control valve comprises a shell 11 which is communicated up and down, a horizontal calandria 12 fixedly connected and communicated with the side wall of the lower side of the shell 11, a main enclosure 14 detachably fixedly connected to the upper end of the shell 11, a central rod 21 capable of sliding up and down is arranged on the main enclosure 14, a main valve 22 fixedly connected to the lower end of the central rod 21 and used for separating the interior of the shell 11, the main valve 22 enables the interior of the shell 11 to form an upper cavity and a lower cavity, a notch 23 is arranged on the upper side of the central rod 21, a safety shell 31 is covered outside the shell 11, and a long opening 33 is arranged on the safety shell 31; the lifting of the central rod 21 is controlled by the rod-shaped member entering the long opening 33 and passing through the notch 23 so as to adjust the height of the main valve 22, and by utilizing the adjusting mode, a protection structure is formed, and the safety shell 31 is also beneficial to covering a cotton insulation sleeve and the like so as to perform insulation in a low-temperature environment;

the containment vessel 31 is further provided with nozzles 34 corresponding to the positions of the gauntlets 12 so that the gauntlets 12 inside are externally connected to the outside of the containment vessel 31.

Two arc grooves 13 are arranged on the upper side and the lower side of the inner wall of the shell 11, the two arc grooves 13 are respectively positioned on the upper side and the lower side of the calandria 12, and an air bag 25 which can be matched in any one of the arc grooves 13 is fixedly connected with the outer ring of the main valve 22;

the height of the main valve 22 is adjusted to be in the arc groove 13 above the pipe 12, so that the bottom of the shell 11 is an inlet, the pipe 12 is an outlet, the main valve 22 is adjusted to be in the arc groove 13 below the pipe 12, and the pipe 12 is closed.

The air bag 25 is communicated with an air inlet pipe positioned above the main valve 22, and a valve is arranged on the air inlet pipe; when the main valve 22 is adjusted to be close to the main enclosure 14, the main enclosure 14 is disassembled, the expansion and contraction degree of the air bag 25 can be changed through the air inlet pipe, and the air charging amount of the air bag 25 should be increased in a low-temperature environment;

the main sealing shell 14 is provided with a window which is positioned right above the air inlet on the air bag 25, and the window is internally and detachably fixedly connected with the auxiliary sealing shell 15 for sealing the main sealing shell, so that the main sealing shell 14 is not required to be detached when the air bag 25 is inflated;

referring to fig. 3, the device further comprises a limiting piece 26 fixedly connected to the center rod 21, a base ii 51 fixedly connected to the inner wall of the shell 11, two transversely extending guide rods 52 which are in clearance fit with the base ii 51, wherein the guide rods 52 can slide left and right, a limiting part fixedly connected to the left end of the guide rods 52, a movable supporting piece 53 is fixedly connected to the right end of the guide rods 52, a pressure spring is sleeved on the guide rods 52, two ends of the pressure spring are respectively contacted with the base ii 51 and the movable supporting piece 53, a fixed supporting piece 54 positioned below the movable supporting piece 53 is fixedly connected to the inner wall of the shell 11, the upper edge and the lower edge of the limiting piece 26 are chamfer surfaces, the limiting piece 26 is in surface contact with the movable supporting piece 53 through the chamfer surfaces, and the limiting piece 26 can be in surface contact with the upper end of the fixed supporting piece 54;

the movable supporting piece 53 is used for lifting the limiting piece 26 so as to keep the air bag 25 in the arc groove 13 located above, when the central rod 21 receives downward pressure, the movable supporting piece 53 receives component force moving leftwards and contracts until the movable supporting piece 53 contacts the fixed supporting piece 54 and cannot descend continuously, at this time, the air bag 25 is located in the arc groove 13 located below, and when the movable supporting piece 53 rises and is supported by the fixed supporting piece 54 again, touch feedback can be generated through the action of the movable supporting piece 53, so that control is facilitated.

The main valve 22 is provided with a side valve port 24, the upper end of the containment vessel 31 is provided with a round port 32, the upper end of the main valve 22 is fixedly connected with a base I41, the base I41 is connected with a screw rod 42 through threads, the lower end of the screw rod 42 is fixedly connected with a secondary valve 43, the secondary valve 43 can open and close the side valve port 24, the round port 32 is positioned right above the screw rod 42, the screw rod 42 is lower than the containment vessel 31, and the upper end of the screw rod 42 is provided with an inner hexagonal groove; outside the containment 31, a circular opening 32 and an inner hexagonal groove are sequentially inserted into a rod-shaped member of a regular hexahedron and an upper end of a screw rod 42 to control the screw rod 42 to rotate from the outside of the containment 31, and the rotation of the screw rod 42 can adjust the height of a secondary valve 43 to control the opening and closing of the side valve port 24;

when the passage of the calandria 12 is blocked, temporary discharge can be performed by opening the side valve port 24 and opening the sub-enclosure 15 so that the position of the sub-enclosure 15 is a discharge port; when the dredging agent needs to be injected into the calandria 12, the dredging agent can also be injected from the position of the auxiliary sealing shell 15 and enter the calandria 12 through the side valve port 24; when the passage is frozen due to the low temperature environment, the sub-capsule 15 is opened, and the defrosting liquid is injected into the upper cavity until the sub-valve 43 can be opened, so that the defrosting liquid is further thawed on other passages; when the low temperature is concentrated, the antifreezing agent can be stored in the upper cavity;

the back flushing can be performed, the calandria 12 is used as an inlet, the auxiliary valve 43 is opened, and a window at the auxiliary sealing shell 15 and the lower end of the shell 11 are used as outlets; on the other hand, at the time of sampling, the sub-valve 43 may be opened and then closed, so that the window is sampled by opening the sub-capsule 15.

Claims

1. The utility model provides a safety control valve, including casing (11) that switch on from top to bottom, calandria (12) rigid coupling and intercommunication on casing (11) lateral wall, main enclosure (14) of rigid coupling on casing (11), characterized by still includes clearance fit on main enclosure (14) central pole (21), the main valve (22) that are used for separating casing (11) inside of rigid coupling at central pole (21) lower extreme, the upside of central pole (21) is equipped with notch (23), casing (11) outside cover is equipped with containment (31), be equipped with long mouth (33) on containment (31).

2. Safety control valve according to claim 1, wherein the safety housing (31) is further provided with nozzles (34) corresponding to the positions of the gauntlets (12).

3. The safety control valve according to claim 1, wherein the inner wall of the shell (11) is provided with two arc grooves (13), the two arc grooves (13) are respectively positioned at the upper side and the lower side of the calandria (12), and an air bag (25) which can be matched in any arc groove (13) is fixedly connected with the outer ring of the main valve (22).

4. A safety control valve according to claim 3, said air-bag (25) being in communication with an inlet pipe located above the main valve (22).

5. The safety control valve according to claim 4, wherein the main sealing shell (14) is provided with a window positioned right above the air bag (25), and a secondary sealing shell (15) for sealing the main sealing shell is detachably fixedly connected in the window.

6. The safety control valve according to claim 5, further comprising a limiting member (26) fixedly connected to the central rod (21), a base II (51) fixedly connected to the inner wall of the housing (11), two guide rods (52) transversely extending and in clearance fit with the base II (51), limiting portions fixedly connected to the outer ends of the guide rods (52), movable supporting members (53) fixedly connected to the inner ends of the guide rods (52), compression springs sleeved on the guide rods (52), two ends of each compression spring respectively contact with the base II (51) and the movable supporting members (53), fixed supporting members (54) located below the movable supporting members (53) are fixedly connected to the inner wall of the housing (11), wherein the upper edge and the lower edge of each limiting member (26) are chamfer surfaces, the limiting members (26) are in surface contact with the movable supporting members (53) through the chamfer surfaces, and the limiting members (26) can be in contact with the upper ends of the fixed supporting members (54).

7. The safety control valve according to claim 6, wherein a side valve port (24) is arranged on the main valve (22), a round port (32) is arranged at the upper end of the containment vessel (31), a base I (41) is fixedly connected to the upper end of the main valve (22), a screw (42) is connected to the base I (41) through threads, a secondary valve (43) is fixedly connected to the lower end of the screw (42), the secondary valve (43) can open and close the side valve port (24), and the round port (32) is located right above the screw (42).

8. The safety control valve according to claim 7, wherein the screw (42) is lower than the safety housing (31), and an inner hexagonal groove is formed at an upper end of the screw (42).

9. Safety control valve according to claim 1, wherein a plurality of gauntlets (12) are circumferentially distributed.

10. Safety control valve according to claim 9, wherein the drain (12) is provided with a valve check valve, a gate valve, or a shut-off valve.