Sulfur-containing oil gas purification treatment device for crude oil gathering and transportation station pump house

Abstract

The utility model relates to the field of devices for separating hydrogen sulfide gas from oil gas, in particular to a sulfur-containing oil gas purification treatment device for a pump room of a crude oil gathering and transportation station. The sulfur-containing oil gas purification treatment device for the crude oil gathering and transportation station pump room comprises an oil gas treatment container, the oil gas treatment container is provided with a reaction cavity, the reaction cavity is used for containing reaction liquid reacting with hydrogen sulfide gas, the oil gas treatment container is further provided with a gas inlet and a gas outlet, the gas inlet is communicated to the reaction cavity, and the gas outlet is communicated to the gas outlet. A dry type separation device is further arranged above the reaction cavity in the oil gas treatment container, a gas channel is arranged on the dry type separation device, and the exhaust port is located behind the dry type separation device. According to the device, the reaction cavity and the dry type separation device are integrated in the oil gas treatment container, so that the hydrogen sulfide gas removal effect can be ensured, the device is smaller in size and convenient to move, and the requirement of small-space use in a pump room of a crude oil gathering and transportation station can be met.

Description

Technical Field

[0001] The utility model relates to the field of devices for separating hydrogen sulfide gas from oil and gas, in particular to a sulfur-containing oil and gas purification and treatment device for a crude oil gathering and transportation station pump room. Background Art

[0002] During the collection and transportation of high-sulfur crude oil, the twin-screw pumps in the oil station pump room must be exhausted before starting. The hydrogen sulfide concentration in high-sulfur oil and gas is as high as 1000ppm. Due to the lack of suitable treatment equipment, it can only be discharged on-site into a relatively closed pump room, causing the accumulation of highly toxic H2S gas in the pump room and exceeding the concentration standard. Even if the axial flow fan is turned on, the H2S gas is difficult to eliminate in a short period of time, posing a production safety hazard and causing atmospheric pollution.

[0003] The main existing method for treating hydrogen sulfide-containing oil and gas is to perform the treatment within a desulfurization tower. For example, Chinese Utility Model Patent No. CN201394431Y discloses a portable dry-gas hydrogen sulfide removal device. This device's gas-liquid separator and desulfurization tower are connected in series, and the oil and gas are desulfurized within the desulfurization tower using a dry-gas method to remove hydrogen sulfide. However, this device is relatively large, making it unsuitable for use in certain environments. Currently, there are no small-scale hydrogen sulfide oil and gas treatment devices suitable for practical production on the market. Utility Model Content

[0004] The purpose of the utility model is to provide a sulfur-containing oil and gas purification treatment device for a crude oil gathering station pump room, so as to solve the problems that the existing equipment for treating hydrogen sulfide-containing oil and gas is large in size, inconvenient to move, and not conducive to use in specific environments.

[0005] To achieve the above objectives, the sulfur-containing oil and gas purification device for the crude oil gathering and transportation station pump room of the present invention adopts the following technical solutions:

[0006] A sulfur-containing oil and gas purification and processing device for a crude oil gathering and transportation station pump room includes an oil and gas processing container, which is provided with a reaction chamber for containing a reaction liquid that reacts with hydrogen sulfide gas. An air inlet and an exhaust port are also provided on the oil and gas processing container, and the air inlet leads to the reaction chamber. A dry separation device is also provided above the reaction chamber in the oil and gas processing container, and a gas channel is provided on the dry separation device. The exhaust port is located after the dry separation device.

[0007] Furthermore, the dry separation device includes an adsorption material support plate, the support plate is provided with through holes, and the gas channel is formed by the through holes.

[0008] Furthermore, the support plate can be detachably installed in the oil and gas processing container.

[0009] Furthermore, the oil and gas processing container includes an upper part and a lower part of a split structure, and the support plate is installed in the upper part.

[0010] Furthermore, a sealing ring is provided between the upper part and the lower part of the oil and gas processing container, and the upper part and the lower part are connected by bolts or locks.

[0011] Furthermore, a handle is provided on the outer side of the support plate.

[0012] Furthermore, an aeration device is provided in the oil and gas processing container, and a rotating sleeve is sleeved on the outer side of the aeration device.

[0013] Furthermore, the aeration device includes an aeration pipe and an aeration head. The aeration pipe is a tubular structure, one end of which is connected to the air inlet and the other end is closed. The aeration head is distributed on the wall of the aeration pipe and is connected to the aeration pipe.

[0014] Furthermore, the rotating sleeve uses the aeration tube as a rotating axis, and limiting plates are provided on both sides of the aeration tube to limit the rotating sleeve and prevent it from moving left and right.

[0015] Furthermore, rotating blades are provided in the rotating sleeve, and the rotating blades are installed obliquely and evenly distributed in the rotating sleeve to drive the rotating sleeve to rotate under the action of aeration.

[0016] Beneficial effects: The sulfur-containing oil and gas purification treatment device for the crude oil gathering station pump room of the utility model is a pioneering utility model creation. Specifically, the sulfur-containing oil and gas purification treatment device for the crude oil gathering station pump room of the utility model is provided with a reaction chamber and a dry separation device in the oil and gas treatment container. When in use, the reaction liquid can be contained in the reaction chamber, and the air inlet of the oil and gas treatment container can be connected to the exhaust pipe in the pump room. The discharged sulfur-containing gas enters the reaction container under the action of the gas pressure in the exhaust pipe in the pump, and reacts with the reaction liquid in the reaction chamber and the dry separation device in sequence, thereby removing harmful hydrogen sulfide gas, and then the oil and gas with a lower sulfur concentration is discharged through the exhaust port. The device integrates the reaction chamber and the dry separation device in an oil and gas treatment container, which can ensure the effect of removing hydrogen sulfide gas while having a smaller volume and being easy to move, and can meet the requirements of using a small space in the crude oil gathering station pump room. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural schematic diagram of an embodiment of a sulfur-containing oil and gas purification device for a crude oil gathering and transportation station pump room of the present utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the external structure of the oil and gas processing tank and gas-liquid separation tank;

[0019] Figure 3 for Figure 1 Schematic diagram of the internal structure of the oil and gas processing tank and gas-liquid separation tank;

[0020] Figure 4 This is a schematic diagram of the installation structure of the rotating sleeve in one embodiment of the sulfur-containing oil and gas purification treatment device for a crude oil gathering station pump room of the present utility model;

[0021] Figure 5 for Figure 4 Schematic diagram of the internal structure of the rotating sleeve.

[0022] In the figure: 1. Mobile cart; 2. Oil and gas treatment container; 21. Lower part of oil and gas treatment container; 211. Aeration pipe; 212. Aeration head; 213. Rotating sleeve; 214. Rotating blade; 215. Aeration device; 22. Upper part of oil and gas treatment container; 221. Support plate; 222. Dry reaction device; 23. Air inlet; 231. Sewage outlet; 232. Exhaust pipe; 233. Exhaust outlet; 3. Gas-liquid separation container; 31. Inlet pipe; 311. Outlet pipe; 32. Positioning cylinder. DETAILED DESCRIPTION

[0023] Industrial hydrogen sulfide removal methods primarily utilize liquid absorbents to remove hydrogen sulfide from gases, or powdered or granular absorbents, adsorbents, or catalysts to remove sulfides from gases. These desulfurization equipment typically utilizes large desulfurization towers, making them unsuitable for use in environments with limited space. Furthermore, there are currently no small sulfur-containing oil and gas treatment devices on the market. To address these issues, the present utility model provides a sulfur-containing oil and gas purification and treatment device for use in crude oil gathering and transportation station pump rooms. Specific embodiments are provided below for illustration.

[0024] The inventive concept of the utility model is to integrate a reaction chamber for containing reaction liquid and a dry separation device in an oil and gas processing container, so as to ensure the effect of hydrogen sulfide removal by two-stage removal, thereby reducing the volume of the oil and gas processing container so that it can meet the usage requirements of the narrow space in the pump room.

[0025] Based on the above-mentioned inventive concept, as a basic solution, the sulfur-containing oil and gas purification and treatment device for the crude oil gathering station pump room of the utility model includes an oil and gas treatment container 2, and a reaction chamber is provided in the oil and gas treatment container 2, and the reaction chamber is filled with a reaction liquid. The function of the oil and gas treatment container is to provide a closed environment required for the reaction, so there are no special requirements for its shape, and it only needs to meet a certain strength. In order to facilitate movement, its size can be controlled to meet the purification of the gas to be discharged from the exhaust pipe of the pump room.

[0026] In order to make the treatment of hydrogen sulfide gas in oil and gas cleaner, a dry separation device 222 is provided above the oil and gas treatment container 2. A gas distribution channel is provided on the dry separation device 222. The function of the dry separation device 222 is to perform secondary treatment on the sulfur-containing oil and gas treated in the reaction chamber, so as to make the treatment of hydrogen sulfide gas in the oil and gas more thorough. Preferably, the dry separation device 222 includes an adsorption material support plate 221, on which through holes are provided. The through holes are distributed throughout the support plate to form the gas channel of the dry separation device 222, and a handle is installed on the outer surface. When in use, the support plate 221 of the dry separation device 222 will be filled with adsorption material, and the sulfur-containing oil and gas that has been treated once in the reaction chamber will rise along the reaction chamber to the support plate 221, pass through the gas channel, and fully react with the adsorption material on the support plate 221, and then be discharged through the gas outlet 233. In practical applications, the device may need to be used indoors or in a relatively closed environment, and the treated gas needs to be discharged outdoors. Therefore, a spring tube can be installed at the outlet 233. The spring tube can be flexibly contracted to meet the discharge requirements of different distances. To facilitate the control of the device's air intake and exhaust, control valves can be installed at the air intake 23 and exhaust port 233. In other embodiments, the dry reaction device can also be composed of a wire mesh structure, for example, the wire mesh can be directly made of dry desulfurization material.

[0027] In a preferred embodiment, Figure 1-3As shown, the oil and gas reaction vessel 2 is divided into an upper portion 22 and a lower portion 21, which are detachably connected. To prevent sulfur-containing oil and gas from escaping from between the upper and lower portions of the oil and gas reaction vessel 2, a sealing ring is used between the upper and lower portions. The reaction chamber of the lower portion 21 contains a reaction liquid, preferably lime water or copper sulfate solution. When the reaction liquid is copper sulfate solution, the chemical reaction equation is: CuSO4 + H2S = CuS↓ + H2SO4. The resulting product is chemically stable and less likely to cause pollution. In other embodiments, the reaction liquid can also be other liquid aqueous solutions, as long as they can convert the sulfides in the gas into a more easily handled or harmless form. The adsorption material support plate 221 is removably mounted within the upper portion 22 of the oil and gas processing vessel. A handle is mounted on the lower surface of the support plate 221. The adsorption material on the support plate 221 is preferably a mixture of hydrated iron oxide and sawdust. The chemical reaction equations are: Fe2O3.H2O + 3H2S = Fe2S3 + 3H2O, Fe2S3.H2O + 3 / 2H2S = Fe2O3.H2O + 3S. The aforementioned secondary adsorption method using a dry adsorbent is a dry oxidation desulfurization method with high desulfurization efficiency, converting H2S into elemental sulfur without secondary pollution. The adsorbent can also be regenerated and recycled. The gas obtained after the two adsorption purification steps can be directly discharged to the atmosphere through the exhaust port 233. To ensure smooth discharge of the reacted substances from the oil and gas reaction vessel, a drain port 231 and a drain valve can be provided at the bottom of the reaction chamber of the oil and gas reaction vessel 2. Preferably, the oil and gas processing container 2 can adopt a can-shaped structure, which is divided into an upper tank body and a lower tank body. The upper and lower tank bodies are connected by bolts or locks. Of course, based on the basic function of the oil and gas processing container, in other embodiments, it is also feasible to set it as an integrated structure. At this time, in order to facilitate the installation and disassembly of the dry reaction device, corresponding operating holes can be set on its side wall.

[0028] In some cases, in order to make the wet reaction more complete and more efficient, as a preferred embodiment, an aeration device is also provided in the reaction chamber, such as Figure 3-4As shown, the main components of the aeration device 215 are an aeration head 212 and an aeration tube 211. The aeration tube 211 is a tubular structure, one end of which is connected to the air inlet and the other end is closed. The aeration heads 212 are distributed on the wall of the aeration tube 211 and are connected to the aeration tube 211. The aeration heads 212 are tapered straight hole structures. When in use, the sulfur-containing oil and gas enter the aeration device 215 from the air inlet. The aeration tube 211 and the aeration head 212 can break the introduced hydrogen sulfide oil and gas into fine oil and gas particles, so that they can fully react with the reaction liquid in the reaction chamber. In some embodiments, the aeration device 215 can also adopt a disc-shaped structure with a surface covered with micropores. The function of the aeration device 215 is to allow the reaction liquid to fully react with the sulfur-containing oil and gas, thereby improving the reaction efficiency. Therefore, the aeration device 215 is not necessary in the sulfur-containing oil and gas purification device.

[0029] On the basis of the above embodiment, in order to make the gas-liquid reaction more complete, as Figure 3-5 As shown, a rotating sleeve 213 can be installed on the outside of the aeration device 215. The rotating sleeve 213 uses the aeration tube 211 as the rotating axis. Limit plates are provided on both sides of the aeration tube 211 to limit the rotating sleeve and prevent axial movement. When in use, the airflow generated when the aeration head 212 discharges bubbles will push the rotating blades 214 in the rotating sleeve 213, thereby driving the rotating sleeve 213 to roll. The rotating sleeve 213 has two functions when rolling. First, it can fully stir the reacting gas and the adsorption liquid to fully proceed with the gas-liquid reaction; second, it can break up the bubbles ejected from the aeration head 212 into small bubbles again, prolonging the reaction process and making the gas-liquid reaction more complete.

[0030] The liquid in the oil and gas may contain impurities, particulate matter or crystals, which can easily clog pipes, valves and other equipment during subsequent processing. In order to ensure that the desulfurization reaction in the device can proceed smoothly and extend the service life of the equipment, as a preferred embodiment, a gas-liquid separation container 3 is set before the air inlet 23 of the oil and gas processing container 2. The gas-liquid separation container 3 is mainly used to separate crude oil from sulfur-containing oil and gas. Because the hydrogen sulfide gas in the sulfur-containing oil and gas is corrosive, the gas-liquid separation container should be made of corrosion-resistant material, preferably transparent glass, which can facilitate staff to observe the discharge of oil and gas. A cork is provided at the outlet of the gas-liquid separation container 3. The access pipe 31 and the outlet pipe 311 pass through the cork and extend into the gas-liquid separation container 3. The position where the access pipe 31 enters the gas-liquid separation container is lower than the position where the outlet pipe 311 enters the gas-liquid separation container 3.

[0031] To facilitate device mobility, a preferred embodiment of a sulfur-containing oil and gas purification device for a crude oil gathering station pumphouse includes a mobile cart 1. The oil and gas processing container 2 and the gas-liquid separation container 3 can be mounted separately on the mobile cart, making it easier for operators to move the device while reducing manpower. Because the gas-liquid separation container 3 is made of glass, which is fragile and difficult to install, a positioning cylinder 32 can be installed on the mobile cart 1. The positioning cylinder 32 has an observation port on its surface, and the gas-liquid separation container 3 is placed inside the positioning cylinder.

[0032] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. The scope of patent protection of the present invention shall be based on the claims. Any equivalent structural changes made using the description and drawings of the present invention shall also be included in the scope of protection of the present invention.

Claims

1. A sulfur-containing oil and gas purification device for a crude oil gathering station pump room, characterized in that: It includes an oil and gas processing container, which is provided with a reaction chamber for containing reaction liquid that reacts with hydrogen sulfide gas. An air inlet and an exhaust port are also provided on the oil and gas processing container, and the air inlet leads to the reaction chamber. A dry separation device is also provided above the reaction chamber in the oil and gas processing container, and a gas channel is provided on the dry separation device. The exhaust port is located after the dry separation device.

2. The sulfur-containing oil and gas purification device for a crude oil gathering and transportation station pump room according to claim 1 is characterized in that: The dry separation device comprises an adsorption material support plate, the support plate is provided with through holes, and the gas channel is formed by the through holes.

3. The sulfur-containing oil and gas purification device for a crude oil gathering and transportation station pump room according to claim 2, characterized in that: The supporting plate can be detachably installed in the oil and gas processing container.

4. The sulfur-containing oil and gas purification device for a crude oil gathering and transportation station pump room according to claim 2, characterized in that: The oil and gas processing container comprises an upper part and a lower part of a split structure, and the support plate is installed in the upper part.

5. The sulfur-containing oil and gas purification device for a crude oil gathering and transportation station pump room according to claim 4 is characterized in that: A sealing ring is provided between the upper part and the lower part of the oil and gas processing container, and the upper part and the lower part are connected by bolts or locks.

6. The sulfur-containing oil and gas purification device for a crude oil gathering and transportation station pump room according to claim 3 or 4, characterized in that: A handle is provided on the outer side of the supporting plate.

7. The sulfur-containing oil and gas purification device for a crude oil gathering and transportation station pump room according to claim 1, characterized in that: An aeration device is provided in the oil and gas processing container, and a rotating sleeve is sleeved on the outer side of the aeration device.

8. The sulfur-containing oil and gas purification device for a crude oil gathering and transportation station pump room according to claim 7, characterized in that: The aeration device includes an aeration pipe and an aeration head. The aeration pipe is a tubular structure with one end connected to the air inlet and the other end closed. The aeration head is distributed on the pipe wall of the aeration pipe and communicated with the aeration pipe.

9. The sulfur-containing oil and gas purification device for a crude oil gathering and transportation station pump room according to claim 8, characterized in that: The rotating sleeve uses the aeration tube as a rotating axis. Limiting plates are provided on both sides of the aeration tube to limit the rotating sleeve and prevent it from axial movement.

10. The sulfur-containing oil and gas purification device for a crude oil gathering and transportation station pump room according to claim 9, characterized in that: The rotating sleeve is provided with rotating blades, which are installed obliquely and evenly distributed in the rotating sleeve to drive the rotating sleeve to rotate under the action of aeration.

Images