Hemispherical electric dehydration and electric desalting mixing valve

Abstract

The utility model relates to the technical field of mixing valves, and discloses a hemispherical electric dewatering and electric desalting mixing valve, which solves the problem that crude oil, washing water and a demulsifier cannot be fully mixed at present, and comprises a valve body, a water outlet pipe and a water inlet pipe are respectively arranged on two sides of the valve body, and flanges are fixedly mounted on the outer sides of the water outlet pipe and the water inlet pipe. A limiting mechanism is arranged at the top of the valve body, a valve element is rotationally connected into the valve body, a valve rod is rotationally connected into the valve body, the valve element is fixedly connected to the outer side of the valve rod in a sleeving mode, the top end of the valve rod extends to the outer side of the valve body and is fixedly connected with a hand wheel, and the valve element is in a hemispherical surface shape. According to the utility model, a certain gap is formed between the valve core and the inner wall of the valve body, so that when crude oil, washing water and a demulsifier flow through the valve body, a backflow area, a countercurrent area and a vortex area can be formed, a strong mixing effect is generated on the crude oil, the washing water and the demulsifier, full mixing is ensured, and salt in the crude oil can be fully dissolved in the washing water.

Description

Technical Field

[0001] This utility model belongs to the field of mixing valve technology, specifically a hemispherical electro-dehydration and electro-desalination mixing valve. Background Technology

[0002] The electro-desalting mixing valve is a special device designed to fully mix crude oil, wash water, and demulsifier. Because it needs to be remotely adjusted from the control room, it requires a valve actuator, just like ordinary regulating valves. However, its key function is to achieve full mixing of crude oil, wash water, and demulsifier.

[0003] At different stages of oilfield development, including during electro-desalting operations, the amount of crude oil processed and the amount of water injected often vary. During this process, it is necessary to adjust the mixing valve to increase or decrease the mixing intensity so that the crude oil and wash water are fully mixed, dissolving the salt in the crude oil into the wash water. Then, a high-voltage electric field is used to separate the oil-water emulsion formed, thereby removing the salt from the crude oil.

[0004] Therefore, the mixing valve plays an important role in ensuring that the salts contained in crude oil are dissolved into the washing water, achieving oil-water separation in a high-voltage electric field, and ultimately meeting the technical specifications.

[0005] Currently, there are various types of control valves on the market, such as gate valves, ball valves, and butterfly valves. Their main purpose is to regulate the flow rate or open and close the valve in the control room. Although these valves can achieve a certain degree of mixing through the adjustment of the valve core, the mixing effect is relatively poor. They cannot be used as mixing valves in the electro-desalination process because these control valves are not designed for the purpose of fully mixing crude oil and water. Therefore, control valves on the market cannot be used to replace mixing valves. Utility Model Content

[0006] In order to overcome the shortcomings of the prior art, this utility model provides a hemispherical electro-dehydration and electro-desalination mixing valve, which effectively solves the problem that it is currently inconvenient to achieve full mixing of crude oil, washing water and demulsifier.

[0007] To achieve the above objectives, this utility model provides the following technical solution: a hemispherical electro-dehydration and electro-desalination mixing valve, comprising a valve body, wherein an outlet pipe and an inlet pipe are respectively provided on both sides of the valve body, and flanges are fixedly installed on the outer sides of both the outlet pipe and the inlet pipe. A limiting mechanism is provided on the top of the valve body, a valve core is rotatably connected inside the valve body, and a valve stem is rotatably connected inside the valve body. The valve core is fixedly sleeved on the outer side of the valve stem, and the top end of the valve stem extends to the outer side of the valve body and is fixedly connected to a handwheel. The valve core is hemispherical in shape.

[0008] Preferably, the limiting mechanism includes a vertical plate fixed to the top of the valve body. Two L-shaped round rods are symmetrically fixedly connected to the side of the vertical plate near the valve stem. A slider is movably sleeved on the outer side of each of the two L-shaped round rods. A support shaft is rotatably connected to one of the sliders. One end of the support shaft passes through the other slider and is fixedly connected to a turntable. A sleeve plate is fixedly sleeved on the outer side of the support shaft. The sleeve plate is located between the two sliders. A locking gear is fixedly installed at the bottom of the sleeve plate. A sleeve is fixedly sleeved on the outer side of the valve stem. An external gear adapted to the locking gear is fixedly installed on the outer side of the sleeve.

[0009] Preferably, a horizontal plate is fixedly installed on the side of the vertical plate near the valve stem, the valve stem passes through the horizontal plate and is rotatably connected to the horizontal plate, the sleeve is located below the horizontal plate, and a return spring is fixedly connected between the two sliders and the vertical plate, with the two return springs respectively sleeved on the outside of the two L-shaped round rods.

[0010] Preferably, each of the two sliders is fixedly connected to a limiting post on the side near the upright plate, and neither limiting post contacts the upright plate.

[0011] Preferably, an L-shaped plate located above the external gear is fixedly installed on the outer side of the sleeve, the bottom of the L-shaped plate is provided with a limiting wheel, and the side of the L-shaped plate is provided with a limiting hole.

[0012] Preferably, a limiting rod is fixedly connected to the side of the sleeve near the valve stem, and the outer diameter of the limiting rod is equal to the inner diameter of the limiting hole.

[0013] Compared with the prior art, the beneficial effects of the present invention are:

[0014] 1. This utility model facilitates valve core rotation through the cooperation between the handwheel and the valve stem. The cooperation between the sleeve plate, support shaft, L-shaped rod, slider, and return spring facilitates the engagement of the locking gear and external gear to limit the valve stem position, enabling the valve core to be fixed after rotation. This allows for optimization and adjustment of the mixing intensity. The valve core is a rotatable hemispherical surface, forming a large valve cavity within the valve body. A certain gap exists between the valve core and the inner wall of the valve body, allowing crude oil, wash water, and demulsifier to form a reflux zone, a counter-current zone, and a vortex zone as they flow through the valve body. This creates a strong mixing effect, ensuring thorough mixing and allowing the salts in the crude oil to fully dissolve in the wash water.

[0015] 2. This new type of device can limit the rotation of the sleeve plate by cooperating with the sleeve plate, the limiting wheel, the limiting hole, and the limiting rod, thereby facilitating the horizontal movement of the sleeve plate and enabling the locking gear to quickly mesh with the external gear. Attached Figure Description

[0016] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation to the present invention.

[0017] In the attached diagram:

[0018] Figure 1 This is a schematic diagram of the hemispherical electro-dehydration and electro-desalination mixing valve of this utility model;

[0019] Figure 2 This is a schematic diagram of the valve body structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the limiting mechanism of this utility model;

[0021] Figure 4 This is a schematic diagram of the sleeve structure of this utility model;

[0022] Figure 5 This is a schematic diagram of the L-shaped plate structure of this utility model.

[0023] In the diagram: 1. Valve body; 2. Limiting mechanism; 201. Vertical plate; 202. Sleeve; 203. L-shaped rod; 204. Horizontal plate; 205. L-shaped plate; 206. Support shaft; 207. Turntable; 208. Slider; 209. Sleeve plate; 2010. Return spring; 2011. Limiting post; 2012. Locking gear; 2013. Limiting rod; 2014. External gear; 2015. Limiting wheel; 2016. Limiting hole; 3. Flange; 4. Outlet pipe; 5. Inlet pipe; 6. Valve stem; 7. Handwheel; 8. Valve core. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0025] Example 1, by Figure 1-2 The present invention relates to a hemispherical electro-dehydration and electro-desalination mixing valve, comprising a valve body 1, with an outlet pipe 4 and an inlet pipe 5 respectively provided on both sides of the valve body 1. A flange 3 is fixedly installed on the outer side of both the outlet pipe 4 and the inlet pipe 5. A limiting mechanism 2 is provided on the top of the valve body 1. A valve core 8 is rotatably connected inside the valve body 1. A valve stem 6 is rotatably connected inside the valve body 1. The valve core 8 is fixedly sleeved on the outer side of the valve stem 6. The top end of the valve stem 6 extends to the outer side of the valve body 1 and is fixedly connected to a handwheel 7. The valve core 8 is hemispherical in shape.

[0026] Specifically, by Figure 3-4 The limiting mechanism 2 includes a vertical plate 201 fixed to the top of the valve body 1. Two L-shaped round rods 203 are symmetrically fixedly connected to the side of the vertical plate 201 near the valve stem 6. Slider 208s are movably sleeved on the outer sides of the two L-shaped round rods 203. A support shaft 206 is rotatably connected to one of the sliders 208. One end of the support shaft 206 passes through the other slider 208 and is fixedly connected to a turntable 207. A sleeve plate 209 is fixedly sleeved on the outer side of the support shaft 206. The sleeve plate 209 is located between the two sliders 208. A locking gear 2012 is fixedly installed at the bottom of the sleeve plate 209. A sleeve 20 is fixedly sleeved on the outer side of the valve stem 6. 2. An external gear 2014 adapted to the locking gear 2012 is fixedly installed on the outer side of the sleeve 202. A horizontal plate 204 is fixedly installed on the side of the vertical plate 201 near the valve stem 6. The valve stem 6 passes through the horizontal plate 204 and is rotatably connected to the horizontal plate 204. The sleeve 202 is located below the horizontal plate 204. A return spring 2010 is fixedly connected between the two sliders 208 and the vertical plate 201. The two return springs 2010 are respectively sleeved on the outer side of the two L-shaped round rods 203. A limit post 2011 is fixedly connected to the side of the two sliders 208 near the vertical plate 201. The two limit posts 2011 do not contact the vertical plate 201.

[0027] In operation, the valve core 8, a rotatable hemispherical surface, forms a large valve cavity within the valve body 1. A gap exists between the valve core 8 and the inner wall of the valve body 1 to create a fluid flow channel. When crude oil, wash water, and demulsifier flow through the valve body 1, they impact the valve core 8. The fluid is diverted and accelerated within the valve body 1 before entering the larger valve cavity. Within the valve cavity, the fluid forms a reflux zone, a counter-current zone, and a vortex zone, resulting in a strong mixing effect on the crude oil, wash water, and demulsifier, ensuring thorough mixing and allowing the salts in the crude oil to fully dissolve in the wash water. When the handwheel 7 is rotated, it drives the valve stem 6 to rotate, thereby driving the valve... The valve core 8 rotates to optimize and adjust the mixing intensity. Then, the two sliders 208 slide along the two L-shaped rods 203 via the turntable 207 until the two limit posts 2011 abut against the vertical plate 201. At this time, the two return springs 2010 are compressed. Then, the turntable 207 is rotated, which drives the support shaft 206 to rotate and drives the sleeve plate 209 to rotate so that it is in a horizontal position. Then, the sleeve plate 209 moves under the action of the elastic force of the two return springs 2010 until the locking gear 2012 meshes with the external gear 2014 to limit the valve stem 6. Finally, the position of the valve core 8 is fixed.

[0028] Specifically, by Figure 4-5As shown, an L-shaped plate 205 located above the external gear 2014 is fixedly installed on the outer side of the sleeve 202. The bottom of the L-shaped plate 205 is provided with a limiting wheel 2015, and the side of the L-shaped plate 205 is provided with a limiting hole 2016. A limiting rod 2013 is fixedly connected to the side of the sleeve 209 near the valve stem 6. The outer diameter of the limiting rod 2013 is equal to the inner diameter of the limiting hole 2016.

[0029] In use, when the sleeve plate 209 rotates and comes into contact with the limit wheel 2015, the sleeve plate 209 is in a horizontal state. Then the sleeve plate 209 moves, which drives the limit rod 2013 to move through the limit hole 2016, thereby limiting the sleeve plate 209 and preventing it from rotating arbitrarily. Finally, the locking gear 2012 moves quickly horizontally and meshes with the external gear 2014.

Claims

1. A hemispherical electro-dehydration and electro-desalination mixing valve, comprising a valve body (1), characterized in that: The valve body (1) is provided with an outlet pipe (4) and an inlet pipe (5) on both sides respectively. A flange (3) is fixedly installed on the outside of the outlet pipe (4) and the inlet pipe (5). A limiting mechanism (2) is provided on the top of the valve body (1). A valve core (8) is rotatably connected inside the valve body (1). A valve stem (6) is rotatably connected inside the valve body (1). The valve core (8) is fixedly sleeved on the outside of the valve stem (6). The top of the valve stem (6) extends to the outside of the valve body (1) and is fixedly connected to a handwheel (7). The valve core (8) is hemispherical in shape.

2. The hemispherical electro-dehydration and electro-desalination mixing valve according to claim 1, characterized in that: The limiting mechanism (2) includes a vertical plate (201) fixed to the top of the valve body (1). Two L-shaped round rods (203) are symmetrically fixedly connected to the side of the vertical plate (201) near the valve stem (6). Slider (208) is movably sleeved on the outer side of each of the two L-shaped round rods (203). A support shaft (206) is rotatably connected to one of the sliders (208). One end of the support shaft (206) passes through the other slider (208) and is fixedly connected to a turntable (207). A sleeve plate (209) is fixedly sleeved on the outer side of the support shaft (206). The sleeve plate (209) is located between the two sliders (208). A locking gear (2012) is fixedly installed at the bottom of the sleeve plate (209). A sleeve (202) is fixedly sleeved on the outer side of the valve stem (6). An external gear (2014) that matches the locking gear (2012) is fixedly installed on the outer side of the sleeve (202).

3. The hemispherical electro-dehydration and electro-desalination mixing valve according to claim 2, characterized in that: A horizontal plate (204) is fixedly installed on the side of the upright plate (201) near the valve stem (6). The valve stem (6) passes through the horizontal plate (204) and is rotatably connected to the horizontal plate (204). The sleeve (202) is located below the horizontal plate (204). A return spring (2010) is fixedly connected between the two sliders (208) and the upright plate (201). The two return springs (2010) are respectively sleeved on the outside of the two L-shaped round rods (203).

4. The hemispherical electro-dehydration and electro-desalination mixing valve according to claim 2, characterized in that: Both sliders (208) are fixedly connected to limit posts (2011) on the side near the upright plate (201), and neither of the limit posts (2011) is in contact with the upright plate (201).

5. A hemispherical electro-dehydration and electro-desalination mixing valve according to claim 2, characterized in that: An L-shaped plate (205) located above the external gear (2014) is fixedly installed on the outer side of the sleeve (202). The bottom of the L-shaped plate (205) is provided with a limiting wheel (2015), and the side of the L-shaped plate (205) is provided with a limiting hole (2016).

6. A hemispherical electro-dehydration and electro-desalination mixing valve according to claim 2, characterized in that: The sleeve (209) is fixedly connected to a limiting rod (2013) on the side near the valve stem (6), and the outer diameter of the limiting rod (2013) is equal to the inner diameter of the limiting hole (2016).

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