Buffering structure of oil collecting body

Abstract

The utility model relates to an oil collecting body buffer structure, which belongs to the technical field of natural gas compressors, and comprises a first screw joint, a connecting pipe, a second screw joint, a valve body and an oil collecting body, the bottom of the oil collecting body is provided with a first screw joint groove, the first screw joint groove is connected with the second screw joint through threads, and the connecting pipe is connected with the second screw joint through threads. A second screw joint groove is formed in one side of the oil collecting body, and the valve body is connected with the second screw joint groove through threads. According to the utility model, through the arrangement of the oil collecting body, when the one-way valve is damaged and cannot play a role in reverse sealing, gas in the compressor cylinder is prevented from directly entering an oil pipeline of a lubricating system through the valve body, and the purpose that when the one-way valve is damaged, the gas in the compressor cylinder cannot directly enter the oil pipeline of the lubricating system is achieved. The buffering and reverse liquid sealing effects on gas leakage in the compressor cylinder are achieved, gas leakage is reduced, a lubricating system is well protected, damage to the lubricating system is avoided, and the service life of the lubricating system is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of natural gas compressors, and in particular relates to an oil collecting body buffer structure. Background Art

[0002] Natural gas compressors are key equipment in the natural gas transportation and processing process. They play an important role in increasing wellhead pressure, overcoming resistance in long-distance gas pipelines, maintaining city gas supply pressure, and in the production of liquefied natural gas.

[0003] At present, when the natural gas compressor is running, the cylinder and the packing need to be lubricated by the lubricating oil in the lubrication system. The oil pump in the lubrication system supplies the lubricating oil to each oil filling point. A one-way valve is installed in front of each oil filling point to prevent the gas from escaping. However, when the one-way valve is damaged and fails to play a reverse sealing role, the gas in the compressor will escape into the lubrication system, causing the lubrication system to malfunction. Based on this, an oil collector buffer structure is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide an oil collecting body buffer structure with simple structure and reasonable design in order to solve the above problems.

[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:

[0006] A buffer structure of an oil collecting body comprises a first screw joint, a connecting pipe, a second screw joint, a valve body and an oil collecting body, a first screw groove is provided at the bottom of the oil collecting body, the first screw groove is connected to the second screw joint by a thread, a second screw groove is provided on one side of the oil collecting body, the valve body is connected to the second screw groove by a thread, a one-way valve is installed in the valve body, and the valve body can only allow fluid to flow from one end connected to the oil collecting body to the other end under the action of the one-way valve, and a buffer mechanism is provided in the middle of the oil collecting body.

[0007] As a further optimization solution of the utility model, the oil collecting body is configured to be hollow, the valve body is configured to be hollow, and the oil collecting body and the valve body are internally communicated.

[0008] As a further optimization solution of the utility model, the first screw joint and the second screw joint are respectively fixedly connected to the two ends of the connecting pipe, and the connecting pipe is connected to the inside of the oil collecting body through the second screw joint.

[0009] As a further optimization scheme of the utility model, the buffer mechanism includes an exhaust groove opened in the middle position of the top of the oil collecting body, the inner wall of the exhaust groove is fixedly connected with a spacer column, a support plate is placed on the top of the spacer column, the bottom of the support plate is fixedly connected with a connecting rod, the bottom of the connecting rod is fixedly connected with a float, and a sealing groove is opened on the inner top of the oil collecting body.

[0010] As a further optimization solution of the utility model, the sealing groove is matched with a floating ball, and the floating ball is arranged in the oil collecting body.

[0011] As a further optimization solution of the utility model, the exhaust groove is communicated with the interior of the sealing groove, and the sealing groove is communicated with the interior of the oil collecting body.

[0012] The beneficial effect of the utility model is that: through the provision of the oil collecting body, when the one-way valve is damaged and cannot play a reverse sealing role, the provision of the oil collecting body can prevent the internal gas of the compressor cylinder from directly entering the oil pipeline of the lubrication system through the valve body, thereby achieving the buffering and reverse liquid sealing effects on the internal gas leakage of the compressor cylinder when the one-way valve is damaged, reducing gas leakage, well protecting the lubrication system, avoiding damage to the lubrication system, and extending the service life of the lubrication system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall three-dimensional structure of the utility model;

[0014] Figure 2 It is a three-dimensional partially cutaway structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the utility model in the middle of the front side;

[0016] Figure 4 The utility model Figure 3 The enlarged structural diagram at A in the middle;

[0017] Figure 5 It is a schematic diagram of a partial three-dimensional central section structure of the utility model.

[0018] In the figure: 1. first screw joint; 2. connecting pipe; 3. second screw joint; 4. oil collecting body; 5. valve body; 6. one-way valve; 7. first screw groove; 8. second screw groove; 9. float; 10. connecting rod; 11. sealing groove; 12. supporting plate; 13. exhaust groove; 14. spacer column. DETAILED DESCRIPTION

[0019] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0020] Example

[0021] like Figure 1, Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown in Figure 2 , Figure 3 , Figure 4 and Figure 5 , an oil collecting body buffer structure includes a first screw joint 1, a connecting pipe 2, a second screw joint 3, a valve body 5 and an oil collecting body 4. A first screw connection groove 7 is provided at the bottom of the oil collecting body 4, and the first screw connection groove 7 is threadedly connected to the second screw joint 3. A second screw connection groove 8 is provided on one side of the oil collecting body 4, and the valve body 5 is threadedly connected to the second screw connection groove 8. A one-way valve 6 is installed in the valve body 5, and under the action of the one-way valve 6, the valve body 5 can only make the fluid flow from the end connected to the oil collecting body 4 to the other end. A buffer mechanism is provided in the middle of the oil collecting body 4. The oil collecting body 4 is set in a hollow form, and the valve body 5 is set in a hollow form. The interiors of the oil collecting body 4 and the valve body 5 are connected. The first screw joint 1 and the second screw joint 3 are respectively fixedly connected to both ends of the connecting pipe 2. The connecting pipe 2 is connected to the interior of the oil collecting body 4 through the second screw joint 3. The first screw joint 1 is threadedly connected to the oil pipeline of the lubrication system, and the installation position of the first screw joint 1 on the oil pipeline is before the oil injection point.

[0022] During use, the valve body 5 is fixedly connected to the oil collecting body 4 by threading through the second screw connection groove 8, and the end of the valve body 5 away from the oil collecting body 4 is connected to the cylinder of the compressor. Then, the second screw joint 3 is fixedly connected to the bottom of the oil collecting body 4 through the first screw connection groove 7. Finally, the first screw joint 1 can be threadedly connected to the oil pipeline of the lubrication system. The overall installation position of this oil collecting body buffer structure is before the oil injection point of the oil pipeline. When the lubricating oil in the oil pipeline is injected into the cylinder of the compressor, at this time, the lubricating oil in the oil pipeline enters the connecting pipe 2 through the first screw joint 1, and then enters the oil collecting body 4 through the second screw joint 3. When it reaches the position of the valve body 5, it will enter the valve body 5. When it reaches the position of the one-way valve 6, the one-way valve 6 will open to the left under the extrusion of the lubricating oil, so that the lubricating oil enters the cylinder through the valve body 5 to lubricate and cool the cylinder.

[0023] When the one-way valve 6 is damaged and cannot play the role of reverse sealing, at this time, due to the setting of the oil collecting body 4, even if the gas inside the compressor cylinder enters the oil collecting body 4 through the valve body 5, it will not make the gas enter the oil pipeline of the lubrication system. This is because there is pressure in the oil pipeline, so that the lubricating oil inside the oil collecting body 4 cannot completely flow back into the oil pipeline, avoiding the gas inside the compressor cylinder from directly entering the oil pipeline of the lubrication system through the valve body 5. When the one-way valve 6 is damaged, it realizes the buffering and reverse liquid sealing effects on the gas leakage inside the compressor cylinder, reduces the gas leakage, well protects the lubrication system, avoids damage to the lubrication system, and prolongs the service life of the lubrication system.

[0024] As Figure 2 , Figure 3 ,Figure 4 and Figure 5 As shown in Figure 5 , the buffer mechanism includes an exhaust groove 13 formed in the middle position at the top of the oil collecting body 4. The inner wall of the exhaust groove 13 is fixedly connected with a space isolation column 14. A supporting plate 12 is placed on the top of the space isolation column 14. A connecting rod 10 is fixedly connected to the bottom of the supporting plate 12. A floating ball 9 is fixedly connected to the bottom of the connecting rod 10. A sealing groove 11 is formed in the inner top of the oil collecting body 4. The sealing groove 11 is adapted to the floating ball 9. The floating ball 9 is arranged inside the oil collecting body 4. The exhaust groove 13 is internally communicated with the sealing groove 11, and the sealing groove 11 is internally communicated with the inside of the oil collecting body 4.

[0025] During the process of injecting lubricating oil into the compressor cylinder through the oil collecting body 4 and the valve body 5, when the pressure in the oil pipeline of the lubrication system is relatively high, at this time, the floating ball 9 will move upward under the buoyancy of the lubricating oil, reducing the pressure in the oil pipeline, and the maximum release pressure is when the floating ball 9 enters the sealing groove 11. When the one-way valve 6 is damaged and the gas and lubricating oil in the compressor cylinder flow back, when the lubricating oil and gas enter the oil collecting body 4, at this time, the gas in the compressor cylinder will be discharged through the sealing groove 11 and the exhaust groove 13, thus preventing the gas in the compressor cylinder from entering the oil pipeline. In addition, when the lubricating oil cannot flow back to the oil pipeline through the oil collecting body 4, and the gas and lubricating oil in the compressor cylinder can flow back into the oil collecting body 4, it will cause the floating ball 9 to move upward under the buoyancy of the lubricating oil until the floating ball 9 enters the sealing groove 11 to seal the oil collecting body 4. And at this time, the supporting plate 12 and the connecting rod 10 will move upward and extend out of the oil collecting body 4, facilitating personnel to timely understand the oil pressure in the oil pipeline and whether the one-way valve 6 is damaged. Even during the process of injecting oil into the compressor cylinder or when not in use, the floating ball 9 is always in the sealing groove 11. When the one-way valve 6 is damaged, due to the backflow of the lubricating oil and gas in the compressor cylinder into the oil collecting body 4, and the gas is located above and the lubricating oil is located below, when both the gas and the lubricating oil enter the oil collecting body 4, a gas cavity will be formed at the inner top of the oil collecting body 4, and the buoyancy of the oil acting on the floating ball 9 will decrease, causing the gas to be discharged through the exhaust groove 13.

[0026] The above embodiments only represent several implementation manners of the present invention. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. An oil collecting body buffer structure, characterized in that: The invention comprises a first screw joint (1), a connecting pipe (2), a second screw joint (3), a valve body (5) and an oil collecting body (4); a first screw groove (7) is provided at the bottom of the oil collecting body (4); the first screw groove (7) is connected to the second screw joint (3) by a thread; a second screw groove (8) is provided on one side of the oil collecting body (4); the valve body (5) is connected to the second screw groove (8) by a thread; a one-way valve (6) is installed in the valve body (5); and under the action of the one-way valve (6), the valve body (5) can only allow fluid to flow from one end connected to the oil collecting body (4) to the other end; and a buffer mechanism is provided in the middle of the oil collecting body (4).

2. The oil collecting body buffer structure according to claim 1, characterized in that: The oil collecting body (4) is configured to be hollow, the valve body (5) is configured to be hollow, and the oil collecting body (4) and the valve body (5) are internally communicated.

3. The oil collecting body buffer structure according to claim 1, characterized in that: The first screw joint (1) and the second screw joint (3) are respectively fixedly connected to the two ends of the connecting pipe (2), and the connecting pipe (2) is connected to the interior of the oil collecting body (4) through the second screw joint (3).

4. The oil collecting body buffer structure according to claim 1, characterized in that: The buffer mechanism comprises an exhaust groove (13) provided at the middle position of the top of the oil collecting body (4); the inner wall of the exhaust groove (13) is fixedly connected with a spacer column (14); a support plate (12) is placed on the top of the spacer column (14); the bottom of the support plate (12) is fixedly connected with a connecting rod (10); the bottom of the connecting rod (10) is fixedly connected with a floating ball (9); and a sealing groove (11) is provided on the inner top of the oil collecting body (4).

5. The oil collecting body buffer structure according to claim 4, characterized in that: The sealing groove (11) is matched with the floating ball (9), and the floating ball (9) is arranged in the oil collecting body (4).

6. The oil collecting body buffer structure according to claim 4, characterized in that: The exhaust groove (13) is in communication with the interior of the sealing groove (11), and the sealing groove (11) is in communication with the interior of the oil collecting body (4).

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