Efficient pressure balance valve for oil gas wellhead

Abstract

The utility model discloses an efficient pressure balance valve for an oil gas well mouth, which comprises a control mechanism, a dustproof mechanism and an opening mechanism, the control mechanism comprises a valve body, a valve rod screwed with the valve body, and the dustproof mechanism, the dustproof mechanism comprises a cylinder base connected to the outer side of the valve rod in a sleeving mode, a cylinder sleeve connected with the top of the cylinder base, two supporting plates connected with the outer wall of the cylinder sleeve, a rotating shaft movably connected between the two supporting plates, a cylinder cover connected to the outer side of the rotating shaft in a sleeving mode and an opening mechanism. The opening mechanism comprises two wire spools connected with the two ends of the rotating shaft. An operator takes down the two rod bodies at the top of the barrel cover and then inserts the two rod bodies into the two rod sleeves respectively, under the action of weight, the rod sleeves enable the wire spool to drive the rotating shaft to rotate through the pull rope, then the rotating shaft drives the barrel cover to rotate, opening of the barrel cover is achieved, the barrel cover can be kept in an open state due to the fact that the rod bodies are not moved, the opening method is simple, and operation is convenient. The use is convenient.

Description

TECHNICAL FIELD

[0001] The utility model relates to pressure balance valve technical field, concretely for a kind of high-efficiency pressure balance valve for oil and gas well mouth. BACKGROUND

[0002] ZYC type self force pressure balance valve is a kind of energy-saving product using the pressure change of medium to keep the pressure difference of medium flowing through the controlled system unchanged.Suitable for the pressure difference control of the double-pipe system of heating mode, ensure that the pressure difference of system is basically unchanged, reduce noise, balance resistance, eliminate the hydraulic imbalance of heat network.

[0003] The utility model discloses a kind of pressure self-balancing valves with application No. UTILITY MODEL CONTENT

[0004] The utility model aims at one of the technical problems existing in prior art or related art.

[0005] To this end, the technical scheme adopted by the utility model is as follows:

[0006] A kind of high-efficiency pressure balance valve for oil and gas well mouth, including control mechanism, dustproof mechanism and opening mechanism, the control mechanism includes valve body, the valve stem that is rotatively connected with the valve body, dustproof mechanism, the dustproof mechanism includes the barrel seat that is sleeved on the outer side of the valve stem, the barrel sleeve that is connected with the top of the barrel seat, two bracing plates that are connected with the outer wall of the barrel sleeve, the rotating shaft that is movably connected between two bracing plates, the barrel cover that is sleeved on the outer side of the rotating shaft, opening mechanism, the opening mechanism includes two wire reels that are connected with the two ends of the rotating shaft, the pull rope that is connected with the wire reel, the guide pipe that is movably sleeved on the outer side of the pull rope and is connected with the barrel sleeve, the rod sleeve that is slidably penetrated in the bottom end of the guide pipe and is connected with the pull rope, two rod bodies that are attached to the top of the barrel cover.

[0007] By adopting the above technical scheme, the operator removes the two rod bodies on the top of the barrel cover, then inserts the two rod bodies into the two rod sleeves respectively, under the weight, the rod sleeve makes the wire reel rotate with the rotating shaft through the pull rope, then the rotating shaft rotates with the barrel cover, the opening of the barrel cover is realized, and the barrel cover can maintain the open state because the rod body is not placed, the opening method is simple and convenient to use.

[0008] The utility model discloses in a preferable example can be further configured as: the plurality of arc mouth is opened at the top of the cylinder cover, and the plurality of arc mouth is equally spaced and arranged in a ring.

[0009] The utility model discloses in a preferable example can be further configured as: the diameter of the rod body is equal to the inner diameter of the rod cover, and the sum of the weights of the two rod bodies is greater than the weight of the cylinder cover.

[0010] The utility model discloses in a preferable example can be further configured as: a plurality of reinforcing ribs are connected between the cylinder seat and the cylinder cover, and the plurality of reinforcing ribs are equally spaced and arranged in a ring.

[0011] The utility model discloses in a preferable example can be further configured as: a torsion spring is connected between the support plate and the cylinder cover, and the torsion spring is sleeved on the outer side of the rotating shaft.

[0012] The utility model discloses in a preferable example can be further configured as: a frame body is installed on the top of the cylinder cover, and the frame body is movably sleeved on the outer sides of the two rod bodies.

[0013] By adopting the above technical scheme, the utility model has the beneficial effects that:

[0014] 1. In the utility model, the operator removes the two rod bodies on the top of the cylinder cover, then inserts the two rod bodies into the two rod covers respectively, under the weight action, the rod cover makes the reel rotate with the rotating shaft through the pull rope, then the rotating shaft rotates with the cylinder cover, realizes the opening of the cylinder cover, and because the rod body is not placed, the cylinder cover can maintain the open state, the opening method is simple, and the utility model is convenient to use.

[0015] 2. In the utility model, when the operator pulls out the rod body in the rod cover, the two torsion springs cooperate to restore the open cylinder cover to the closed state, pull out the rod body, and the cylinder cover can be automatically closed, further improving the use comfort of the device. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the overall structure perspective drawing of the utility model;

[0017] Figure 2 It is the control mechanism schematic drawing of the utility model;

[0018] Figure 3 It is the dustproof mechanism and opening mechanism schematic drawing of the utility model;

[0019] Figure 4 It is the split schematic drawing of the support plate, rotating shaft, cylinder cover, reel and pull rope of the utility model;

[0020] Figure 5 It is the A part structure enlarged view of the utility model Figure 3 ;

[0021] Figure 6 The reinforcing rib installation position schematic view of the utility model.

[0022] Reference signs:

[0023] 100, control mechanism; 110, valve body; 120, valve rod;

[0024] 200, dustproof mechanism; 210, barrel seat; 220, barrel sleeve; 230, support plate; 240, rotating shaft; 250, barrel cover;

[0025] 300, opening mechanism; 310, winding reel; 320, pull rope; 330, guide pipe fitting; 340, rod sleeve; 350, rod body;

[0026] 400, reinforcing rib;

[0027] 500, torsion spring;

[0028] 600, frame body. DETAILED DESCRIPTION

[0029] In order to make the purpose, technical scheme and advantages of the utility model more clear and obvious, the utility model is further explained in detail below in combination with specific implementation manners and with reference to the drawings. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0030] It is understood that the above description is only exemplary and is not intended to limit the scope of the utility model.

[0031] Some embodiments of the utility model provide a high-efficiency pressure balance valve for an oil and gas well head, which is described below in combination with the drawings.

[0032] Embodiment one:

[0033] In combination with Figures 1-6 the utility model provides a high-efficiency pressure balance valve for an oil and gas well head, which comprises a control mechanism 100, a dustproof mechanism 200 and an opening mechanism 300, the control mechanism 100 comprises a valve body 110, a valve rod 120 rotatably connected with the valve body 110;

[0034] The dustproof mechanism 200 comprises a barrel seat 210 sleeved on the outer side of the valve rod 120, a barrel sleeve 220 connected with the top of the barrel seat 210, two support plates 230 connected with the outer wall of the barrel sleeve 220, a rotating shaft 240 movably connected between the two support plates 230 and a barrel cover 250 sleeved on the outer side of the rotating shaft 240.

[0035] The opening mechanism 300 comprises two winding discs 310 connected with both ends of the rotating shaft 240, a pull rope 320 connected with the winding disc 310, a guide pipe 330 movably sleeved outside the pull rope 320 and connected with the barrel sleeve 220, a rod sleeve 340 slidingly penetrating the bottom end of the guide pipe 330 and connected with the pull rope 320, and two rod bodies 350 abutting the top of the barrel cover 250.

[0036] Further, a plurality of arc openings are formed at the top of the barrel sleeve 220, and the arc openings are equally spaced and arranged in a ring shape. The arc openings improve the appearance of the barrel sleeve 220 and make it easier for the operator to rotate the valve rod 120.

[0037] Further, the diameter of the rod body 350 is equal to the inner diameter of the rod sleeve 340, and the sum of the weights of the two rod bodies 350 is greater than the weight of the barrel cover 250. The size of the rod body 350 is designed to allow the rod body 350 to be smoothly inserted into the rod sleeve 340, and the weight of the rod body 350 is designed to allow the two rod bodies 350 to cooperate to smoothly open the barrel cover 250.

[0038] Further, the barrel cover 250 is provided with a frame 600 mounted at the top thereof, and the frame 600 is movably sleeved outside the two rod bodies 350. The frame 600 is provided to provide conditions for unified collection of the rod bodies 350.

[0039] Embodiment Two:

[0040] In combination with Figure 6 As shown in the embodiment one, a plurality of reinforcing ribs 400 are connected between the barrel seat 210 and the barrel sleeve 220, and the reinforcing ribs 400 are equally spaced and arranged in a ring shape. The reinforcing ribs 400 improve the connection firmness of the barrel seat 210 and the barrel sleeve 220.

[0041] Embodiment Three:

[0042] In combination with Figure 1 and Figures 3-5 As shown in the above embodiments, a torsion spring 500 is connected between the supporting plate 230 and the barrel cover 250, and the torsion spring 500 is sleeved outside the rotating shaft 240. The torsion spring 500 helps the opened barrel cover 250 to automatically close, thereby improving the use comfort of the device.

[0043] The working principle and use process of the utility model: when the device is put into practical use, the barrel cover 250 closes the top of the barrel sleeve 220, so that the valve rod 120 can not contact rainwater and dust, then when the operating personnel open the barrel cover 250, two rod bodies 350 on the top of the barrel cover 250 are taken off, then the rod bodies 350 are inserted into the guide pipe fittings 330, under the weight cooperation of the two rod bodies 350, the two rod sleeves 340 are pressed to descend, then the rod sleeves 340 make the winding disc 310 rotate with the rotating shaft 240 through the pull rope 320, then the rotating shaft 240 rotates with the barrel cover 250, the opening of the barrel cover 250 is realized, thus providing conditions for the operating personnel to rotate the valve rod 120, then when the operating personnel pull out the rod body 350 in the rod sleeve 340, the two torsional springs 500 cooperate, the opened barrel cover 250 can be restored to the closed state, the opening and closing are convenient, and the use is comfortable.

[0044] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and purposes of the utility model, and the scope of the utility model is defined by the claims and its equivalents.

Claims

1. A high efficiency pressure balanced valve for use in oil and gas wellheads, characterized by, Include: Control mechanism (100), the control mechanism (100) includes valve body (110), the valve stem (120) is screwed with the valve body (110); Dustproof mechanism (200), the dustproof mechanism (200) includes the barrel seat (210) of the sleeve of the valve stem (120) outside, the barrel sleeve (220) is connected with the top of the barrel seat (210), two supporting plates (230) are connected with the outer wall of the barrel sleeve (220), the rotating shaft (240) is movably connected between two supporting plates (230), the barrel cover (250) is sleeved on the outer side of the rotating shaft (240); Opening mechanism (300), the opening mechanism (300) includes two winding discs (310) connected with both ends of the rotating shaft (240), the pull rope (320) is connected with the winding disc (310), the guide pipe (330) is movably sleeved on the outer side of the pull rope (320) and is connected with the barrel sleeve (220), the rod sleeve (340) is slidably penetrated in the bottom end of the guide pipe (330) and is connected with the pull rope (320), two rod bodies (350) are attached to the top of the barrel cover (250).

2. A high efficiency pressure balanced valve for use in oil and gas wellheads according to claim 1, characterized in that, The top of the barrel sleeve (220) is provided with a plurality of arc openings, and the plurality of arc openings are equally spaced and arranged in a ring shape.

3. The high-efficiency pressure balanced valve for use in oil and gas wellheads according to claim 1, characterized in that, The diameter of the rod body (350) is equal to the inner diameter of the rod sleeve (340), and the sum of the weights of the two rod bodies (350) is greater than the weight of the barrel cover (250).

4. The high-efficiency pressure balanced valve for use in oil and gas wellheads of claim 1, wherein, A plurality of reinforcing ribs (400) are connected between the barrel seat (210) and the barrel sleeve (220), and the plurality of reinforcing ribs (400) are equally spaced and arranged in a ring shape.

5. The high efficiency pressure balanced valve for use in oil and gas wellheads of claim 1, wherein, The torsional spring (500) is connected between the supporting plate (230) and the barrel cover (250), and the torsional spring (500) is sleeved on the outer side of the rotating shaft (240).

6. A high efficiency pressure balanced valve for use in oil and gas wellheads according to claim 1, characterized in that, The frame (600) is movably sleeved on the outer side of the two rod bodies (350).

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