A device for separating and discharging oil and water in the inner cavity of a pressure vessel after water pressure test

Abstract

The utility model belongs to oil -water separation discharge technical field, concretely relates to a pressure vessel water pressure test after inner chamber oil -water separation discharge device, including the delivery pipe and the water outlet of installation in the one end of delivery pipe, both sides of water outlet all are connected with the supporting plate, the bottom of supporting plate is connected with the separation tank, the top surface of separation tank is connected with the deslagging plate, the inside installation of deslagging plate has the processing inner box, the utility model discloses the supporting plate of water outlet both sides bottom end is inserted in the separation tank side edge mounting seat surface opening, simultaneously drives the compression of linkage spring, the force of being affected by the resilience of linkage spring at this time, drive the clamping plate inlay into the clamping groove of supporting plate side edge, the water outlet is conveniently and quickly installed stably in the just above of separation tank, the other end of delivery pipe is docked with the inner chamber drain line of pressure vessel at this time, removes the test water through the water pump, has improved the effect that test water is guided.

Description

Technical Field

[0001] This utility model belongs to the field of oil-water separation and discharge technology, specifically relating to an oil-water separation and discharge device for the inner cavity of a pressure vessel after a hydrostatic test. Background Technology

[0002] The oily test water is introduced into a dedicated settling and separation container. After closing the inlet and outlet valves, the settling process is started. During the settling process, the gravity caused by the density difference will drive the oil-water mixture to separate into layers: the less dense oil droplets gradually float upwards and aggregate to form a uniformly thick floating oil layer; the more dense water sinks under the influence of gravity, forming a lower clear water layer, and the separation interface will gradually become clearer as the settling time progresses.

[0003] After stratification, the lower layer of clear water is slowly drained through the drain valve at the bottom of the container. Once the clear water has been drained, the floating oil is collected through the oil drain valve at the top. This method requires no complex equipment, is low in cost, and is easy to operate. It is suitable for treating oil-water mixtures with an oil content ≤15% after a pressure vessel hydrostatic test.

[0004] Specifically, when using an oil-water separation and discharge device to treat oily test water after a pressure vessel hydrostatic test, the key step in introducing the test water is to quickly connect and assemble the device's inlet pipe with the pressure vessel's drain outlet. This step must be completed after the test pressure has been completely released to prevent oily wastewater from stagnating in the vessel's interior for an extended period, which could cause pipe corrosion. However, most mainstream separation and discharge devices on the market currently use traditional flange or threaded connections for their inlet pipes. Flange connections require aligning the bolt holes one by one and tightening 4-6 bolts, which is time-consuming for a single person. Threaded connections are prone to thread jamming due to residual oil in the test water, requiring repeated application of sealing tape during assembly, and the sealing effect is unstable. This not only prolongs the equipment processing cycle after the test and reduces overall work efficiency, but also may cause oily wastewater to leak at the connection gap due to excessive assembly time, polluting the work site and increasing environmental cleanup costs. It is difficult to meet the requirements of efficient and clean operation at pressure vessel testing sites. Utility Model Content

[0005] The purpose of this utility model is to provide an oil-water separation and discharge device for the inner cavity of a pressure vessel after hydrostatic testing. This addresses the problem that most mainstream separation and discharge devices on the market use traditional flange or threaded connections for their inlet pipes. Flange connections require aligning bolt holes one by one and tightening 4-6 bolts, which is time-consuming for a single person. Threaded connections are prone to thread jamming due to residual oil in the test water, requiring repeated application of sealing tape during assembly, and the sealing effect is unstable. This not only prolongs the post-test equipment processing cycle and reduces overall work efficiency, but also may cause oily wastewater to leak at the connection gap due to excessive assembly time, polluting the work site and increasing environmental cleanup costs. This makes it difficult to meet the high-efficiency and clean operation requirements of pressure vessel testing sites.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an oil-water separation and discharge device for the inner cavity of a pressure vessel after a hydrostatic test, comprising a conveying pipe and an outlet installed at one end of the conveying pipe, with support plates connected to both sides of the outlet, a separation box connected to the bottom end of the support plates, a slag removal plate connected to the top surface of the separation box, a processing inner box installed inside the slag removal plate, and a drain valve and an oil drain valve installed at the bottom back side of the separation box; The separation box is connected to a mounting base near the support plate. A movable rod is connected to an opening on one side of the mounting base. A linkage plate is connected to the other end of the movable rod. A linkage spring is connected to one side of the linkage plate, and a locking plate is connected to the other side of the linkage plate.

[0007] To facilitate quick assembly of the outlet, as a pressure vessel oil-water separation and discharge device after hydrostatic testing according to this utility model, preferably, the outlet forms a fitting structure with the opening on the surface of the mounting base through a support plate, and the surface size of the slag removal plate is adapted to the opening size at the top of the separation box.

[0008] To facilitate stable installation of the outlet, as a pressure vessel oil-water separation and discharge device after hydrostatic testing, preferably, the linkage plate and linkage spring form an elastic telescopic structure, and the support plate has a slot on the side near the card plate, and the card plate and the slot form an interlocking structure.

[0009] To facilitate oil-water separation, as a pressure vessel hydraulic test oil-water separation and discharge device of this utility model, preferably, the drain valve and the oil drain valve are both connected to the inner treatment tank, and one end of the drain valve and the oil drain valve are connected to a connecting plate.

[0010] To facilitate observation of the oil-water separation effect, as a pressure vessel hydraulic test oil-water separation and discharge device of this utility model, preferably, a transparent tube is installed inside the connecting plate, and the transparent tube is made of glass.

[0011] To facilitate the assembly of the transparent tube, as a pressure vessel hydraulic test oil-water separation and discharge device of this utility model, preferably, the connecting plate is connected to a clamp on the side near the transparent tube, and the mating surface of the clamp is connected to an insert plate.

[0012] To facilitate the stable installation of the transparent tube, as a pressure vessel oil-water separation and discharge device after hydrostatic testing, preferably, the clamp forms an interlocking structure with the insert plate and the connecting plate, and a locking screw is threaded through the surface of the insert plate and threadedly connected to the connecting plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are: This invention involves inserting the support plates at the bottom of both sides of the outlet into the opening on the side mounting base of the separation box. This positions the outlet directly above the separation box. Simultaneously, pulling the movable rod on the side of the mounting base causes the linkage plate to move synchronously, compressing the linkage spring. The spring's rebound force then causes the locking plate to engage with the slot on the side of the support plate, facilitating quick and stable installation of the outlet directly above the separation box. The other end of the delivery pipe is then connected to the drainage pipe inside the pressure vessel, allowing the test water to be transferred via a water pump, thus improving the effectiveness of the test water introduction. Attached Figure Description

[0014] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings: Figure 1 This is a schematic diagram of the overall assembly structure of the oil-water separation and discharge device inside the pressure vessel after a hydrostatic test.

[0015] Figure 2 This is a schematic diagram of the support plate installation structure for the oil-water separation and discharge device inside the pressure vessel after a hydrostatic test.

[0016] Figure 3 This is a schematic diagram of the disassembled structure of the support plate of the oil-water separation and discharge device in the inner cavity of the pressure vessel after the hydrostatic test.

[0017] Figure 4 This is a schematic diagram of the clamp assembly structure of the oil-water separation and discharge device inside the pressure vessel after a hydrostatic test.

[0018] Figure 5 This is an enlarged structural diagram of point A of the oil-water separation and discharge device inside the pressure vessel after a hydrostatic test.

[0019] In the diagram: 1. Conveying pipe; 2. Outlet; 3. Support plate; 4. Separation box; 5. Slag removal plate; 6. Inner treatment box; 7. Drain valve; 71. Oil drain valve; 8. Mounting base; 9. Movable rod; 10. Linkage plate; 11. Linkage spring; 12. Clamping plate; 13. Connecting plate; 14. Transparent pipe; 15. Clamp; 16. Insert plate; 17. Locking screw. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figure 1-5 The present invention provides the following technical solution: an oil-water separation and discharge device for the inner cavity of a pressure vessel after a hydrostatic test, comprising a conveying pipe 1 and an outlet 2 installed at one end of the conveying pipe 1, with support plates 3 connected to both sides of the outlet 2, a separation box 4 connected to the bottom end of the support plate 3, a slag removal plate 5 connected to the top surface of the separation box 4, a processing inner box 6 installed inside the slag removal plate 5, and a drain valve 7 and an oil drain valve 71 installed at the bottom back side of the separation box 4; The separation box 4 is connected to a mounting base 8 near the support plate 3. A movable rod 9 is connected to an opening on one side of the mounting base 8. A linkage plate 10 is connected to the other end of the movable rod 9. A linkage spring 11 is connected to one side of the linkage plate 10. A locking plate 12 is connected to the other side of the linkage plate 10.

[0022] Preferably, the outlet 2 forms a fitted structure with the opening on the surface of the support plate 3 and the mounting base 8, and the surface dimensions of the slag removal plate 5 are adapted to the top opening dimensions of the separation box 4. In actual use, the slag removal plate 5 facilitates pre-filtration of the test water to remove solid particles. Preferably, the linkage plate 10 and the linkage spring 11 form an elastic telescopic structure, and the support plate 3 has a slot on the side near the locking plate 12, with the locking plate 12 and the slot forming an interlocking structure. In actual use, the elastic telescopic structure between the linkage plate 10 and the linkage spring 11 drives the locking plate 12 to move.

[0023] Preferably, both the drain valve 7 and the oil drain valve 71 are connected to the inner treatment tank 6, and one end of each valve is connected to a connecting plate 13. In practical use, the use of the drain valve 7 and the oil drain valve 71 facilitates the separation and discharge of the test water after separation.

[0024] Preferably, a transparent tube 14, made of glass, is installed inside the connecting plate 13. In practical use, the transparent tube 14 allows personnel to easily observe the oil-water separation effect in a timely manner, and the structure is simple.

[0025] Preferably, a clamp 15 is connected to the side of the connecting plate 13 near the transparent tube 14, and an insert plate 16 is connected to the mating surface of the clamp 15. In actual use, the insert plate 16 at one end of the clamp 15 is fitted into the corresponding opening on the surface of the drain valve 7, and at the same time, the sealing ring inside the clamp 15 is sealed to the transparent tube 14 to ensure that leakage is avoided.

[0026] Preferably, the clamp 15 forms a fitting structure with the connecting plate 13 via the insert plate 16. A locking screw 17 is threaded through the surface of the insert plate 16 and connected to the connecting plate 13. In actual use, by connecting the locking screw 17 to the connecting plate 13 through the insert plate 16, the clamp 15 is installed stably.

[0027] The working principle of this utility model is as follows: First, the support plates 3 at the bottom of both sides of the outlet 2 are inserted into the openings on the surface of the mounting base 8 on the side of the separation box 4. At this time, the outlet 2 is positioned directly above the separation box 4. Simultaneously, the movable rod 9 on the side of the mounting base 8 is pulled, which causes the linkage plate 10 to move synchronously and compresses the linkage spring 11. Then, due to the rebound force of the linkage spring 11, the locking plate 12 is driven to engage with the locking groove on the side of the support plate 3, making it convenient to position the outlet 2 directly above the separation box 4. The upper part is quickly and stably installed. When treating the oil-containing test water in the inner cavity after the pressure vessel hydrostatic test, the other end of the delivery pipe 1 must be precisely connected to the drainage pipe in the inner cavity of the pressure vessel. Before connection, residual impurities and rust at the interface of the drainage pipe must be cleaned to ensure that the sealing ring is completely attached to the interface end face to avoid subsequent leakage. After connection, start the matching water pump, preferably a self-priming centrifugal pump with a head adapted to the height difference between the pressure vessel and the oil-water separation device. The water pump uses negative pressure suction to stably transfer the oil-containing test water in the inner cavity of the pressure vessel along the delivery pipe 1 to the oil-water separation device, thereby improving the efficiency of test water introduction. At the same time, the stable pressure control of the water pump prevents the water flow impact from causing oil droplet dispersion, maintaining a stable oil-water stratification state for the subsequent oil-water separation process, further improving the overall treatment effect. Afterwards, the test water is first filtered through the slag removal plate 5 to remove solid particulate impurities. Then, the oil-water mixture enters the inner treatment tank 6 and settles. At this time, the transparent pipe 14 is installed at the docking end of the drain valve 7 and the oil drain valve 71 respectively. Specifically, the transparent pipe 14 is installed at the docking end of the drain valve 7 and the oil drain valve 71 respectively. Insert the clamp 15 into the drain valve 7 and the oil drain valve 71, and insert the plate 16 at one end of the clamp 15 onto the surface of the drain valve 7 and the oil drain valve 71. Then, after passing the locking screw 17 through the plate 16, lock it to the drain valve 7 and the oil drain valve 71. At this time, ensure that the transparent tube 14 is installed stably. In addition, first discharge the water quality of the oil and water after sedimentation and separation inside the inner tank 6. When grease is observed in the transparent tube 14, close the drain valve 7 and open the oil drain valve 71 to separate the oil and water and improve the effect of experimental water separation and discharge.

[0028] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A device for separating and discharging oil and water from the inner cavity of a pressure vessel after a hydrostatic test, comprising a delivery pipe (1) and an outlet (2) installed at one end of the delivery pipe (1), characterized in that: Both sides of the outlet (2) are connected to support plates (3), the bottom of the support plate (3) is connected to a separation box (4), the top surface of the separation box (4) is connected to a slag removal plate (5), the inside of the slag removal plate (5) is equipped with a processing inner box (6), and the bottom of the back side of the separation box (4) is equipped with a drain valve (7) and an oil drain valve (71). The separation box (4) is connected to a mounting base (8) on the side near the support plate (3). A movable rod (9) is connected to one side opening of the mounting base (8). A linkage plate (10) is connected to the other end of the movable rod (9). A linkage spring (11) is connected to one side of the linkage plate (10). A locking plate (12) is connected to the other side of the linkage plate (10).

2. The oil-water separation and discharge device for the inner cavity of a pressure vessel after a hydrostatic test according to claim 1, characterized in that: The outlet (2) is fitted with the support plate (3) and the surface of the mounting base (8) to form a fitting structure. The surface size of the slag removal plate (5) is adapted to the top opening size of the separation box (4).

3. The oil-water separation and discharge device for the inner cavity of a pressure vessel after a hydrostatic test according to claim 1, characterized in that: The linkage plate (10) and the linkage spring (11) form an elastic telescopic structure. The support plate (3) has a slot on the side near the card plate (12). The card plate (12) and the slot form an interlocking structure.

4. The oil-water separation and discharge device for the inner cavity of a pressure vessel after a hydrostatic test according to claim 1, characterized in that: The drain valve (7) and the oil drain valve (71) are both connected to the processing inner box (6), and one end of the drain valve (7) and the oil drain valve (71) is connected to a connecting plate (13).

5. The oil-water separation and discharge device for the inner cavity of a pressure vessel after a hydrostatic test according to claim 4, characterized in that: The connecting plate (13) has a transparent tube (14) installed inside, and the transparent tube (14) is made of glass.

6. The oil-water separation and discharge device for the inner cavity of a pressure vessel after a hydrostatic test according to claim 4, characterized in that: The connecting plate (13) is connected to a clamp (15) on the side near the transparent tube (14), and the mating surface of the clamp (15) is connected to an insert plate (16).

7. The oil-water separation and discharge device for the inner cavity of a pressure vessel after a hydrostatic test according to claim 6, characterized in that: The clamp (15) forms a fitting structure with the connecting plate (13) through the insert plate (16). The surface of the insert plate (16) is connected with a locking screw (17), which passes through the insert plate (16) and is threadedly connected to the connecting plate (13).

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