Blowout preventer and moisture content testing equipment

Abstract

The present application provides a blowout preventer and a water content testing device, belonging to the field of petrochemical technology. The blowout preventer comprises: a blowout preventer cover, a return pipe, and a collecting sleeve; the bottom of the blowout preventer cover is sealedly connected to the top of the collecting sleeve, a return pipe is provided in the collecting sleeve, the oil outlet at the top of the return pipe is suspended in the collecting sleeve, and the oil inlet at the bottom of the return pipe is connected to the oil outlet of the water content testing device through the through-hole at the bottom of the collecting sleeve; the return pipe is used to reduce the flow rate of crude oil sprayed into the water content testing device through the oil inlet of the return pipe, and to transfer the crude oil to the collecting sleeve through the oil outlet of the return pipe; the collecting sleeve is used to collect crude oil. Since the blowout device can effectively prevent crude oil from being directly sprayed out of the water content testing device, thereby preventing the sprayed crude oil from causing burns to the surrounding experimenters, the safety of the water content testing device is improved.

Description

Technical Field

[0001] The present application relates to the field of petrochemical technology, and in particular to a blowout prevention device and a moisture content testing device. Background Art

[0002] The water content of crude oil directly affects its extraction, transportation, and refining, and is a key indicator in the production of petroleum products. Therefore, to ensure the normal production of petroleum products, it is necessary to determine the water content of crude oil using water content testing equipment.

[0003] In the related art, the water content testing equipment includes: an electric heating jacket, a flask and a condenser; the outlet of the flask is connected to the condenser, and the electric heating jacket is wrapped around the outside of the flask to heat the crude oil in the flask and vaporize the water component in the crude oil into water vapor. The condenser is used to cool the water vapor and liquefy it into water. The water content of the crude oil is determined based on the ratio of the volume of the liquefied water to the volume of the crude oil in the flask.

[0004] However, in the process of determining the water content of crude oil using the above-mentioned water content testing equipment, when the water content of the crude oil in the flask is high, the water component in the crude oil vaporizes into water vapor at a high rate, and the pressure in the flask increases rapidly, causing the crude oil in the flask to spray out from the upper end of the condenser. In severe cases, it may cause scalding accidents to the experimenters. Therefore, the safety of this water content testing equipment is poor. Summary of the Invention

[0005] The embodiments of the present application provide a blowout prevention device and a moisture content testing device, which can improve the safety of the moisture content testing device. The technical solution is as follows:

[0006] In one aspect, the present application provides a blowout prevention device, comprising: a blowout prevention cover, a return pipe, and a collection casing;

[0007] The bottom of the blowout preventer is sealedly connected to the top of the collecting sleeve. The collecting sleeve is provided with the return pipe. The oil outlet at the top of the return pipe is suspended in the collecting sleeve. The oil inlet at the bottom of the return pipe passes through the through-hole at the bottom of the collecting sleeve and is used to be connected to the oil outlet of the water content testing device. The outer wall of the oil inlet at the bottom of the return pipe and the outer wall of the oil outlet of the water content testing device are both in contact with the inner wall of the through-hole.

[0008] The reflux pipe is used to reduce the flow rate of the crude oil sprayed into the water content testing equipment through the oil inlet of the reflux pipe, and to transfer the crude oil into the collecting casing through the oil outlet of the reflux pipe;

[0009] The collecting casing is used to collect the crude oil.

[0010] In a possible implementation, an air outlet is provided on the top of the anti-spray cover;

[0011] The gas outlet is used to release the gas in the collecting sleeve so that the pressure in the collecting sleeve is balanced with the atmospheric pressure outside the collecting sleeve.

[0012] In the embodiment of the present application, the air outlet at the top of the blowout preventer is used to keep the pressure inside the collecting sleeve balanced with the atmospheric pressure outside the collecting sleeve, thereby avoiding danger caused by excessive pressure inside the collecting sleeve, thereby improving the safety of the moisture content testing equipment.

[0013] In a possible implementation, the blowout prevention device further includes: a blowout prevention net;

[0014] The blowout prevention net is horizontally arranged inside the blowout prevention cover and is used for filtering crude oil in the gas released from the gas outlet.

[0015] In the embodiment of the present application, since the blowout preventer is horizontally arranged inside the blowout cover, when the oil gas or water vapor in the collection casing is ejected from the air outlet on the top of the blowout cover, the blowout preventer can filter the crude oil mixed in the oil gas or water vapor, thereby preventing the crude oil from being ejected from the air outlet on the blowout cover, thereby improving the safety of the water content testing equipment.

[0016] In a possible implementation, the blowout prevention net includes a plurality of sheet metal nets, and the plurality of sheet metal nets are horizontally arranged at different angles in the blowout prevention cover.

[0017] In the embodiment of the present application, since multiple sheet metal meshes are horizontally arranged at different angles in the blowout preventer, the grids of the multiple sheet metal meshes are intertwined with each other. Through the cooperation of the multiple sheet metal meshes, the effect of filtering crude oil mixed with oil gas or water vapor is improved, thereby further avoiding the crude oil from being sprayed out from the air outlet on the blowout preventer, and improving the safety of the water content testing equipment.

[0018] In a possible implementation, the inner diameter of the air outlet is larger than the inner diameter of the oil outlet of the return pipe.

[0019] In the embodiment of the present application, since the inner diameter of the air outlet is larger than the inner diameter of the oil outlet of the return pipe, when the pressure in the collecting casing is balanced through the air outlet, the flow rate of the gas at the air outlet is greater than the flow rate of the crude oil ejected from the oil outlet of the return pipe, thereby avoiding the danger caused by excessive pressure in the collecting casing, thereby further improving the safety of the water content testing equipment.

[0020] In a possible implementation, the reflux pipe is a spiral reflux pipe, and the height of the spiral reflux pipe matches the height of the collecting sleeve, and the gyration diameter of the spiral reflux pipe matches the inner diameter of the collecting sleeve.

[0021] In the embodiment of the present application, the length of the return pipe is increased by the spiral return pipe, and when the height of the spiral return pipe matches the height of the collecting sleeve and the turning diameter of the spiral return pipe matches the inner diameter of the collecting sleeve, the length of the return pipe arranged in the collecting sleeve is maximized. In this way, the crude oil sprayed from the oil outlet of the water content testing device collides with the inner wall of the return pipe when passing through the return pipe, thereby minimizing the flow rate of the crude oil and preventing crude oil with excessively high flow rate from being sprayed out from the top of the blowout preventer, thereby improving the safety of the water content testing device.

[0022] In a possible implementation, the bottom of the collecting sleeve is provided with a groove matching the bottom of the return pipe;

[0023] The groove is used to fix the pipeline at the bottom of the return pipe.

[0024] In the embodiment of the present application, since the bottom of the collecting sleeve is provided with a groove that matches the pipeline at the bottom of the return pipe, the pipeline at the bottom of the return pipe can be embedded in the groove of the collecting sleeve. By fixing the pipeline at the bottom of the return pipe, the return pipe is fixed, thereby preventing the crude oil sprayed from the oil outlet of the water content testing device from falling out of the collecting sleeve when passing through the return pipe, thereby improving the safety of the water content testing device.

[0025] In a possible implementation, the oil outlet of the return pipe is directed vertically downward.

[0026] In the embodiment of the present application, since the oil outlet of the return pipe is directed vertically downward, the crude oil ejected from the oil outlet of the water content testing device will not directly impact the blowout preventer above the collection casing after passing through the return pipe, even if the flow rate of the crude oil is high. This avoids the blowout preventer from falling off the collection casing and the occurrence of burns to personnel caused by crude oil ejection, thereby further improving the safety of the water content testing device.

[0027] In a possible implementation, a first frosting port is provided at the bottom of the blowout preventer, and a second frosting port matching the first frosting port is provided at the top of the collecting sleeve.

[0028] The bottom of the anti-spray cover and the top of the collecting sleeve are sealed and connected through the first frosted port and the second frosted port.

[0029] In the embodiment of the present application, since the bottom of the blowout preventer is connected to the top of the collection casing through a frosted port, the gravity of the blowout preventer can prevent gas from escaping from the gap between the bottom of the blowout preventer and the top of the collection casing. When the crude oil collected in the collection casing needs to be removed, the blowout preventer can be directly removed from the top of the collection casing, thereby improving the convenience of the blowout preventer device.

[0030] On the other hand, the present application provides a moisture content testing device, the moisture content testing device comprising: an electric heating jacket, a flask, a condenser, a moisture receiver, and the blowout prevention device described in any one of the possible implementations above;

[0031] The flask is connected to the blowout preventer through the oil outlet at the top of the condenser and is connected to the moisture receiver through the water outlet at the bottom of the condenser, and is used to hold the crude oil to be tested;

[0032] The electric heating jacket is wrapped around the outside of the flask and is used to gasify the water component in the crude oil into water vapor. The water vapor is cooled into liquid water through the condenser. The liquid water is transmitted to the moisture receiver through the water outlet. The moisture receiver is used to measure the volume of the liquefied water and determine the water content of the crude oil based on the volume of the liquefied water.

[0033] In the process of gasifying the water component in the crude oil into water vapor, the blowout prevention device is used to receive the crude oil sprayed from the oil outlet at the top of the condenser.

[0034] The beneficial effects of the technical solutions provided by the embodiments of the present application include at least:

[0035] The present application provides a blowout prevention device. Since the blowout prevention device includes a blowout prevention cover, a return pipe, and a collection sleeve, the return pipe can first reduce the flow rate of crude oil sprayed from a water content testing device, and then the collection sleeve can recover the crude oil with a low flow rate flowing out of the return pipe. Therefore, the blowout prevention device can effectively prevent crude oil from being directly sprayed out of the water content testing device, thereby preventing the sprayed crude oil from causing burns to surrounding experimenters, thereby improving the safety of the water content testing device. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0037] Figure 1 1 is a schematic structural diagram of a blowout prevention device provided according to an embodiment of the present application;

[0038] Figure 2 1 is a schematic structural diagram of a blowout prevention device provided according to an embodiment of the present application;

[0039] Figure 3 It is a structural schematic diagram of a moisture content testing device provided according to an embodiment of the present application.

[0040] Reference numerals:

[0041] 11. Sprayproof cover

[0042] 12 Return pipe

[0043] 13 Collection sleeve

[0044] 14 BOP

[0045] 10 Blowout preventer

[0046] 21 Electric heating jacket

[0047] 22 flask

[0048] 23 Condensation tube

[0049] 24 Moisture Receiver DETAILED DESCRIPTION

[0050] In order to make the objectives, technical solutions and advantages of this application clearer, the implementation methods of this application will be further described in detail below with reference to the accompanying drawings.

[0051] Figure 1 Schematic diagram of a blowout prevention device according to an embodiment of the present application. Figure 1 The blowout prevention device includes: a blowout prevention cover 11, a return pipe 12 and a collection sleeve 13;

[0052] The bottom of the blowout preventer 11 is sealedly connected to the top of the collecting sleeve 13. The collecting sleeve 13 is provided with a return pipe 12. The oil outlet at the top of the return pipe 12 is suspended in the collecting sleeve 13. The oil inlet at the bottom of the return pipe 12 passes through the through-hole at the bottom of the collecting sleeve 13 and is used to connect to the oil outlet of the moisture content testing equipment. The outer wall of the oil inlet at the bottom of the return pipe 12 and the outer wall of the oil outlet of the moisture content testing equipment are both in contact with the inner wall of the through-hole.

[0053] The return pipe 12 is used to reduce the flow rate of the crude oil injected by the water content testing equipment through the oil inlet of the return pipe 12, and to transfer the crude oil to the collection casing 13 through the oil outlet of the return pipe 12;

[0054] The collecting casing 13 is used to collect crude oil.

[0055] The present application provides a blowout prevention device. Since the blowout prevention device includes a blowout prevention cover 11, a return pipe 12, and a collection sleeve 13, the return pipe 12 can first reduce the flow rate of crude oil sprayed from a water content testing device, and then the collection sleeve 13 can recover the crude oil with a lower flow rate flowing out of the return pipe 12. Therefore, the blowout prevention device can effectively prevent crude oil from being directly sprayed out of the water content testing device, thereby preventing the sprayed crude oil from causing burns to surrounding experimenters, thereby improving the safety of the water content testing device.

[0056] Blowout cover 11: The shape and size of blowout cover 11 match those of collection sleeve 13. The bottom of blowout cover 11 is sealed to the top of collection sleeve 13. For example, collection sleeve 13 is cylindrical with a diameter of 10 cm, and blowout cover 11 is cylindrical with a diameter of 10 cm. Optionally, blowout cover 11 is made of glass.

[0057] In one possible implementation, the bottom of the blowout preventer 11 is sealedly connected to the top of the collection sleeve 13 via threads. The bottom of the blowout preventer 11 is provided with a first external thread, and the top of the collection sleeve 13 is provided with a first internal thread; the bottom of the blowout preventer 11 and the top of the collection sleeve 13 are sealedly connected via the first external thread and the first internal thread.

[0058] In the embodiment of the present application, since the bottom of the blowout preventer 11 is sealedly connected to the top of the collecting sleeve 13 through a threaded connection, and the threaded connection is a fixed connection, this can prevent the blowout preventer 11 from falling off the top of the collecting sleeve 13, thereby improving the safety of the blowout preventer device.

[0059] In another possible implementation, the bottom of the blowout preventer 11 is connected to the top of the collection sleeve 13 via a frosted port. A first frosted port is provided at the bottom of the blowout preventer 11, and a second frosted port is provided at the top of the collection sleeve 13 that matches the first frosted port. The bottom of the blowout preventer 11 and the top of the collection sleeve 13 are sealed together via the first and second frosted ports.

[0060] In the embodiment of the present application, since the bottom of the blowout preventer cover 11 is connected to the top of the collection sleeve 13 through the frosted port, the gravity of the blowout preventer cover 11 can prevent gas from escaping from the gap between the bottom of the blowout preventer cover 11 and the top of the collection sleeve 13. When the crude oil collected in the collection sleeve 13 needs to be removed, the blowout preventer cover 11 can be directly removed from the top of the collection sleeve 13, thereby improving the convenience of the blowout preventer device.

[0061] In one possible implementation, to further enhance the sealing between the bottom of the blowout preventer 11 and the top of the collecting sleeve 13, a sealing layer is further provided between the bottom of the blowout preventer 11 and the top of the collecting sleeve 13. Optionally, the sealing layer is made of vaseline.

[0062] It should be noted that, in the process of testing the water content of crude oil using the water content testing equipment, the water component in the crude oil is gasified into water vapor, which is liquefied into water through the condenser 23 of the water content testing equipment, and some of the unliquefied water vapor is discharged through the condenser 23. In the embodiment of the present application, the condenser 23 is connected to the return pipe 12 and the collecting sleeve 13, and the return pipe 12 and the collecting sleeve 13 are connected to the outside world through the anti-spray cover 11, ensuring that the unliquefied water vapor and the gas in the condenser 23, the return pipe 12 and the collecting sleeve 13 can be discharged in time, so that the pressure in the water content testing equipment is balanced with the external atmospheric pressure, and avoiding excessive pressure in the condenser 23, the return pipe 12, and the collecting sleeve 13, which may cause danger.

[0063] In a possible implementation, an air outlet is provided on the top of the blowout preventer 11 ; the air outlet is used to release the gas in the collecting sleeve 13 so that the pressure in the collecting sleeve 13 is balanced with the atmospheric pressure outside the collecting sleeve 13 .

[0064] In the embodiment of the present application, the air outlet at the top of the blowout preventer 11 is used to keep the pressure inside the collecting sleeve 13 balanced with the atmospheric pressure outside the collecting sleeve 13, thereby avoiding danger caused by excessive pressure inside the collecting sleeve 13, thereby improving the safety of the moisture content testing equipment.

[0065] The inner diameter of the air outlet can be any value between 1 cm and 10 cm, for example, 1 cm, 2 cm, 5 cm, etc.; in the embodiment of the present application, there is no specific limitation on the size of the inner diameter of the air outlet, and it can be set and modified as needed.

[0066] In a possible implementation, the inner diameter of the air outlet is larger than the inner diameter of the oil outlet of the return pipe 12. For example, the inner diameter of the oil outlet of the return pipe 12 is 2 cm, and the inner diameter of the air outlet is 3 cm.

[0067] In the embodiment of the present application, since the inner diameter of the air outlet is larger than the inner diameter of the oil outlet of the return pipe 12, when the pressure in the collecting sleeve 13 is balanced through the air outlet, the flow rate of the gas at the air outlet is greater than the flow rate of the crude oil ejected from the oil outlet of the return pipe 12, thereby avoiding the danger caused by excessive pressure in the collecting sleeve 13, thereby further improving the safety of the water content testing equipment.

[0068] Introduction to the return pipe 12: The oil inlet at the bottom of the return pipe 12 is connected to the oil outlet of the moisture content testing device through the through-hole at the bottom of the collection sleeve 13. Optionally, the through-hole is longer than the length of the oil inlet at the bottom of the return pipe 12 and the oil outlet of the moisture content testing device. The oil inlet at the bottom of the return pipe 12 and the oil outlet of the moisture content testing device are both disposed within the through-hole, and the outer walls of the oil inlet at the bottom of the return pipe 12 and the outer walls of the oil outlet of the moisture content testing device are both in contact with the inner wall of the through-hole.

[0069] In one possible implementation, the through-hole is a frosted through-hole, the oil inlet at the bottom of the return pipe 12 is a frosted inlet, and the oil outlet of the moisture content testing device is a frosted outlet. The oil inlet at the bottom of the return pipe 12 and the through-hole are sealed, and the oil outlet of the moisture content testing device and the through-hole are sealed. In this way, crude oil ejected from the oil outlet of the moisture content testing device, as it passes through the through-hole and the oil inlet at the bottom of the return pipe 12 and enters the return pipe 12, will not escape from the gap between the oil outlet of the moisture content testing device and the through-hole, nor will it escape from the gap between the oil inlet at the bottom of the return pipe 12 and the through-hole.

[0070] It's important to note that the return pipe 12 is used to reduce the flow rate of the crude oil. The crude oil ejected from the oil outlet of the water content testing device collides with the inner wall of the return pipe 12 as it passes through it, further reducing its flow rate. Furthermore, the return pipe 12 is disposed within the collection sleeve 13 and communicates with the oil outlet of the water content testing device through a port at the bottom of the collection sleeve 13. In other words, the return pipe 12 is located above the oil outlet of the water content testing device. As a result, the crude oil ejected from the oil outlet of the water content testing device is affected by gravity as it passes through the return pipe 12, further reducing its flow rate.

[0071] In one possible implementation, the return pipe 12 is a spiral return pipe, and the height of the spiral return pipe matches the height of the collection sleeve 13, and the spiral diameter of the spiral return pipe matches the inner diameter of the collection sleeve 13. The vertical projection of the spiral return pipe is a circle, and the diameter of the projected circle is the spiral diameter of the spiral return pipe.

[0072] The height of the spiral reflux pipe is the same as the height of the collection sleeve 13, or the height of the spiral reflux pipe is less than the height of the collection sleeve 13, and the difference in height is a first value. The spiral diameter of the spiral reflux pipe is the same as the inner diameter of the collection sleeve 13, or the spiral diameter of the spiral reflux pipe is less than the inner diameter of the collection sleeve 13, and the difference in inner diameter is a second value. In the embodiments of the present application, the first value and the second value are not specifically limited and can be set and modified as needed.

[0073] In the embodiment of the present application, the length of the return pipe is increased by the spiral return pipe, and when the height of the spiral return pipe matches the height of the collecting sleeve 13 and the swirl diameter of the spiral return pipe matches the inner diameter of the collecting sleeve 13, the length of the return pipe 12 arranged in the collecting sleeve 13 is the largest. In this way, the crude oil sprayed from the oil outlet of the water content testing equipment collides with the inner wall of the return pipe 12 when passing through the return pipe 12, thereby minimizing the flow rate of the crude oil and preventing crude oil with an excessively high flow rate from being sprayed out from the top of the blowout preventer 11, thereby improving the safety of the water content testing equipment.

[0074] Another point worth mentioning is that the oil outlet at the top of the return pipe 12 is connected to the collecting sleeve 13. The crude oil is transferred to the collecting sleeve 13 through the oil outlet of the return pipe 12. The crude oil is collected by the collecting sleeve 13, which prevents the crude oil from splashing out of the water content testing equipment and improves the safety of the water content testing equipment.

[0075] Among them, the oil outlet at the top of the return pipe 12 is directed downward, and the angle between the oil outlet of the return pipe 12 and the vertical direction is any value between 0 degrees and 60 degrees, for example, 0 degrees, 10 degrees, 30 degrees, etc.; in the embodiment of the present application, the size of the angle is not specifically limited and can be set and modified as needed.

[0076] In a possible implementation, the angle between the oil outlet of the return pipe 12 and the vertical direction is 0 degrees, and the direction of the oil outlet of the return pipe 12 is vertically downward.

[0077] In the embodiment of the present application, since the oil outlet of the return pipe 12 is directed vertically downward, the crude oil sprayed from the oil outlet of the water content testing device will not directly impact the blowout preventer 11 above the collection sleeve 13 after passing through the return pipe 12, even if the flow rate of the crude oil is high. This prevents the blowout preventer 11 from falling off the collection sleeve 13 and crude oil from spraying out, thereby preventing accidents such as burns to personnel. Therefore, the safety of the water content testing device is further improved.

[0078] Collection casing 13: Collection casing 13 is used to collect crude oil. The shape of collection casing 13 can be cylindrical, rectangular, or drum-shaped. The height of collection casing 13 can be anywhere between 5 cm and 20 cm, for example, 5 cm, 10 cm, or 15 cm. The diameter of collection casing 13 can be anywhere between 5 cm and 15 cm, for example, 5 cm, 8 cm, or 10 cm. In the embodiments of the present application, the shape and size of collection casing 13 are not specifically limited and can be set and modified as needed.

[0079] In one possible implementation, the bottom of the return pipe 12 is embedded in the collection sleeve 13, securing the return pipe 12 via the collection sleeve 13. Optionally, the bottom of the collection sleeve 13 is provided with a groove that matches the bottom pipeline of the return pipe 12; the groove is used to secure the bottom pipeline of the return pipe 12. In one possible implementation, the return pipe 12 and the collection sleeve 13 are made of glass, and the bottom pipeline of the return pipe 12 and the collection sleeve 13 are integrally formed.

[0080] In one possible implementation, the reflux pipe 12 is a spiral reflux pipe 12, and the bottom of the collecting sleeve 13 is provided with a groove that matches the pipeline at the bottom of the spiral reflux pipe 12; the pipeline at the bottom of the spiral reflux pipe 12 is embedded in the bottom of the collecting sleeve 13, and the spiral reflux pipe 12 is fixed by fixing the pipeline at the bottom of the spiral reflux pipe 12.

[0081] In the embodiment of the present application, since the bottom of the collecting sleeve 13 is provided with a groove that matches the pipeline at the bottom of the return pipe 12, the pipeline at the bottom of the return pipe 12 can be embedded in the groove of the collecting sleeve 13. By fixing the pipeline at the bottom of the return pipe 12, the return pipe 12 is fixed, thereby preventing the crude oil sprayed from the oil outlet of the water content testing equipment from falling off from the collecting sleeve 13 when passing through the return pipe 12, thereby improving the safety of the blowout preventer.

[0082] Introduction of anti-spray net 14: In one possible implementation, see Figure 2 The blowout prevention device also includes a blowout prevention net 14; the blowout prevention net 14 is horizontally arranged in the blowout prevention cover 11, and is used to filter the crude oil in the gas released from the gas outlet of the blowout prevention cover 11.

[0083] The shape of the blowout screen 14 matches that of the blowout cover 11. For example, the blowout cover 11 is cylindrical, while the blowout screen 14 is circular, allowing the blowout screen 14 to be evenly positioned within the blowout cover 11. The diameter of the blowout screen 14 is no less than the diameter of the blowout cover 11, and the blowout screen 14 can utilize elastic deformation and be secured within the blowout cover 11 by elastic force. The material of the blowout screen 14 can be metal, such as iron, aluminum, copper, etc.; it can also be non-metallic, such as carbon fiber, plastic fiber, etc. In the embodiments of the present application, the shape, size, and material of the blowout cover 11 are not specifically limited and can be set and modified as needed.

[0084] In the embodiment of the present application, since the blowout preventer 14 is horizontally arranged in the blowout preventer cover 11, when the oil gas or water vapor in the collection casing 13 is ejected from the air outlet at the top of the blowout preventer cover 11, the blowout preventer 14 can filter the crude oil mixed in the oil gas or water vapor, thereby preventing the crude oil from being ejected from the air outlet on the blowout preventer cover 11, thereby improving the safety of the water content testing equipment.

[0085] In a possible implementation, the blowout prevention net 14 includes a plurality of sheet metal nets, and the plurality of sheet metal nets are horizontally arranged at different angles in the blowout prevention cover 11 .

[0086] In the embodiment of the present application, since multiple sheet metal meshes are horizontally arranged at different angles in the blowout preventer 11, the grids of the multiple sheet metal meshes are intertwined with each other. Through the cooperation of the multiple sheet metal meshes, the effect of filtering crude oil mixed with oil gas or water vapor is improved, thereby further preventing crude oil from being sprayed out from the air outlet on the blowout preventer 11, and improving the safety of the water content testing equipment.

[0087] Figure 3 1 is a schematic structural diagram of a moisture content testing device provided according to an embodiment of the present application, the moisture content testing device comprising: an electric heating jacket 21, a flask 22, a condenser 23, a moisture receiver 24, and the blowout prevention device 10 in any of the possible implementations described above;

[0088] The flask 22 is connected to the blowout preventer 10 through the oil outlet at the top of the condenser 23 and is connected to the moisture receiver 24 through the water outlet at the bottom of the condenser 23, and is used to hold the crude oil to be tested;

[0089] The electric heating jacket 21 is wrapped around the outside of the flask 22 and is used to gasify the water component in the crude oil into water vapor. The water vapor is cooled into liquid water through the condenser 23. The liquid water is transmitted to the moisture receiver 24 through the water outlet. The moisture receiver 24 is used to measure the volume of the liquefied water and determine the water content of the crude oil based on the volume of the liquefied water.

[0090] In the process of gasifying the water component in the crude oil into water vapor, the blowout prevention device 10 is used to receive the crude oil sprayed from the oil outlet at the top of the condenser pipe 23 .

[0091] The present application provides a water content testing device. A blowout prevention device 10 in the water content testing device includes a blowout prevention cover 11, a return pipe 12, and a collection sleeve 13. The return pipe 12 can reduce the flow rate of crude oil sprayed from the water content testing device, and the collection sleeve 13 can recover the crude oil with a lower flow rate that flows out of the return pipe 12. This prevents crude oil sprayed from the condenser 23 from directly spraying out of the water content testing device, thereby preventing the sprayed crude oil from causing burns to surrounding experimenters. This improves the safety of the water content testing device.

[0092] The above description is merely an optional embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A blowout prevention device, characterized in that: The blowout prevention device comprises: a blowout prevention cover (11), a return pipe (12) and a collection sleeve (13); The bottom of the anti-spray cover (11) is sealedly connected to the top of the collecting sleeve (13) through a thread or a frosted port. The collecting sleeve (13) is provided with the return pipe (12). The oil outlet at the top of the return pipe (12) is suspended in the collecting sleeve (13). The direction of the oil outlet at the top of the return pipe (12) is downward. The angle between the oil outlet of the return pipe (12) and the vertical direction is any value between 0 degrees and 60 degrees. The oil inlet at the bottom of the return pipe (12) is connected to the oil outlet of the water content testing device through the through-port at the bottom of the collecting sleeve (13). The outer wall of the oil inlet at the bottom of the return pipe (12) and the outer wall of the oil outlet of the water content testing device are both in contact with the inner wall of the through-port. The return pipe (12) is used to reduce the flow rate of the crude oil sprayed into the water content testing equipment through the oil inlet of the return pipe (12), and to transfer the crude oil to the collecting sleeve (13) through the oil outlet of the return pipe (12). The return pipe (12) is a spiral return pipe; The collecting sleeve (13) is used to collect the crude oil; An air outlet is provided on the top of the anti-spray cover (11), and the inner diameter of the air outlet is larger than the inner diameter of the oil outlet of the return pipe (12); the air outlet is used to release the gas in the collecting sleeve (13) so that the pressure in the collecting sleeve (13) is balanced with the atmospheric pressure outside the collecting sleeve (13); The blowout prevention device further comprises: a blowout prevention net (14), the blowout prevention net (14) comprising a plurality of sheet metal meshes, and the plurality of sheet metal meshes are horizontally arranged at different angles in the blowout prevention cover (11), and are used to filter crude oil in the gas released from the gas outlet; the shape of the blowout prevention net (14) matches the shape of the blowout prevention cover (11).

2. The blowout prevention device according to claim 1, characterized in that: The height of the spiral reflux pipe matches the height of the collecting sleeve (13), and the gyration diameter of the spiral reflux pipe matches the inner diameter of the collecting sleeve (13).

3. The blowout prevention device according to claim 1, characterized in that: The bottom of the collecting sleeve (13) is provided with a groove matching the pipeline at the bottom of the return pipe (12); The groove is used to fix the pipeline at the bottom of the return pipe (12).

4. The blowout prevention device according to claim 1, characterized in that: The oil outlet of the return pipe (12) is directed vertically downward.

5. The blowout prevention device according to claim 1, characterized in that: The bottom of the anti-spray cover (11) is provided with a first frosting port, and the top of the collecting sleeve (13) is provided with a second frosting port matching the first frosting port; The bottom of the anti-spray cover (11) and the top of the collecting sleeve (13) are sealed and connected via the first frosted port and the second frosted port.

6. A moisture content testing device, characterized in that: The moisture content testing equipment comprises: an electric heating jacket (21), a flask (22), a condenser (23), a moisture receiver (24) and a blowout prevention device (10) according to any one of claims 1 to 5; The flask (22) is connected to the blowout preventer (10) through the oil outlet at the top of the condenser (23), and is connected to the moisture receiver (24) through the water outlet at the bottom of the condenser (23), and is used to hold the crude oil to be tested; The electric heating jacket (21) is wrapped around the outside of the flask (22) and is used to gasify the water component in the crude oil into water vapor. The water vapor is cooled into liquid water through the condenser (23). The liquid water is transmitted to the moisture receiver (24) through the water outlet. The moisture receiver (24) is used to measure the volume of the liquid water and determine the water content of the crude oil based on the volume of the liquid water. In the process of gasifying the water component in the crude oil into water vapor, the blowout prevention device (10) is used to receive the crude oil sprayed from the oil outlet at the top of the condenser (23).

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