Differential pressure reducer

Abstract

The utility model belongs to the technical field of pressure reducing instruments of electrical equipment, and provides a pressure difference pressure reducer which comprises a pressure difference pressure reducing device body, a pressure control mechanism used for controlling oil and gas conveying quantity in a pressure difference mode is arranged on the inner side of the body, and a tightening mechanism used for improving oil and gas conveying work safety of a pipeline is connected to the outer side of the body. The differential pressure control working effect of the device can be greatly improved through the arranged pressure control mechanism, the pressure reduction piston, the high-pressure bin, the low-pressure bin and the control valve which are arranged in the pressure control mechanism work in a matched mode, the pressure control working efficiency is effectively improved, and meanwhile after the device works through differential pressure control, the pressure control efficiency is improved. Certain power consumption can be effectively maintained, resource waste is reduced, meanwhile, the working safety of the device is further improved, device damage caused by too large internal pressure is prevented, the tight connection effect of an output pipeline can be greatly improved through work cooperation of a screwing ring arranged in the tight connection mechanism and a pipeline tight device, and the tight connection effect of the output pipeline is improved. And the phenomena of gas leakage and liquid leakage during working of the device are prevented.

Description

Technical Field

[0001] The utility model belongs to the technical field of pressure reducing devices for electrical equipment, in particular to a pressure differential pressure reducer. Background Art

[0002] In power plants, chemical plants, desalination plants and electrical equipment, the pressure of many fluids is very high. On these high-pressure pipelines, it is often necessary to connect smaller-diameter branch pipes, such as sampling pipes and drainage pipes, to meet the needs of sampling and drainage. In most cases, the pressure required for branch pipes such as sampling pipes and drainage pipes is relatively low, while the pressure in the main pipe is very high (usually high pressure or ultra-high pressure, high pressure is generally more than 2.5Mpa, and ultra-high pressure is generally more than 6Mpa). Therefore, when sampling or draining, certain measures need to be taken to reduce the pressure of high-pressure or ultra-high-pressure fluids to a safe and operable pressure;

[0003] After searching, a Chinese patent with publication number CN220829306U mentioned a pressure gauge of a pressure reducer, including a pressure reducer body, the top of the pressure reducer body is fixedly connected with a pressure gauge body, the pressure gauge body includes a dial and a column, the middle of the bottom end of the front of the dial is fixedly connected with the top of the column, the left side of the front of the dial is abutted with a dial protective cover 1, and the right side of the front of the dial is abutted with a dial protective cover 2. The utility model twists the rotating handle so that the rotating handle drives the screw rod 1 to rotate in the threaded holes of the dial protective cover 1 and the dial protective cover 2, thereby pushing the arc-shaped protective pad to move toward the outer surface of the dial, so that the arc-shaped protective pad abuts against the dial to protect its outer surface, and the setting of the spring can enhance the tightness of the arc-shaped protective pad and the dial through its own elastic force, and the arc-shaped protective pad is made of rubber material and has a certain elastic force, and will not cause damage to the surface of the dial due to excessive pressure.

[0004] However, when the device is working, the internal fluid pressure is relatively high, and the different power of the device body will also directly affect the internal fluid pressure of the device. When the existing device adjusts the pressure difference, the pressure difference device has a relatively simple structure and performance, and the pressure control effect is not very ideal, which in turn affects the working efficiency and working energy consumption of the device.

[0005] To this end, those skilled in the art have proposed a differential pressure reducer to solve the problems raised in the background art. Utility Model Content

[0006] In order to solve the above technical problems, the utility model provides a pressure differential reducer to solve the problems of imperfect performance of the pressure differential device and unsatisfactory pressure control and regulation in the prior art.

[0007] A differential pressure reducer comprises a differential pressure reducing device body, wherein a pressure control mechanism for controlling the oil and gas transmission volume by pressure difference is arranged inside the body, and a tight mechanism for improving the safety of pipeline oil and gas transmission is connected to the outside of the body.

[0008] Preferably, the pressure control mechanism includes a protective outer chamber and a pressure control component, and the pressure control component is arranged on the inner side of the protective outer chamber.

[0009] Preferably, the pressure control assembly mainly includes a pressure reducing piston slidably connected to the inner side of the protective outer chamber, and the upper and lower ends of the protective outer chamber are respectively provided with a high-pressure chamber and a low-pressure chamber for cooperating with the pressure reducing piston to change the pressure environment.

[0010] Preferably, the outer side of the high-pressure chamber is provided with a control valve for controlling the pressure difference, the other end of the control valve is connected to the inner side of the low-pressure chamber, and the outer side of the protective outer chamber is connected to a tight mechanism.

[0011] Preferably, the tight mechanism includes an output pipe and a screw-tightened sealing assembly arranged on the outside of the output pipe to improve the leak-proof effect, and one end of the output pipe is connected to the inner side of the protective outer bin.

[0012] Preferably, the screw-tightening sealing assembly comprises a screw-tightening ring arranged on the outside of the output pipe and a pipe tightener connected to the outer end, and the pipe tightener is screw-tighteningly and sealingly connected to the screw-tightening ring.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] 1. The utility model can greatly improve the pressure difference control effect of the device through the pressure control mechanism. The pressure reducing piston, high pressure chamber, low pressure chamber and control valve in the pressure control mechanism work together, which not only effectively improves the pressure control efficiency, but also effectively maintains a certain power consumption and reduces resource waste after the pressure difference control, and further improves the working safety of the device to prevent damage to the device caused by excessive internal pressure.

[0015] 2. The utility model further improves the working performance of the device through the tight mechanism. Since the outside of the device is connected to an oil or gas pipeline and the internal pressure of the device is relatively high, if the pipeline connection is not tight enough, it is easy to cause gas leakage and liquid leakage. The screw tightening ring provided in the tight mechanism cooperates with the pipeline tightener to greatly improve the connection tightness of the output pipeline and prevent gas leakage and liquid leakage when the device is working. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall first-view structure of the utility model;

[0017] Figure 2It is a schematic diagram of the overall structure of the utility model from a second viewing angle.

[0018] In the figure:

[0019] 1. Main body; 2. Pressure control mechanism; 3. Tightening mechanism; 4. Protective outer chamber; 5. Pressure reducing piston; 6. High-pressure chamber; 7. Low-pressure chamber; 8. Control valve; 9. Output pipeline; 10. Tightening ring; 11. Pipeline tightener. DETAILED DESCRIPTION

[0020] The following is a further detailed description of the implementation of the present utility model in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present utility model, but cannot be used to limit the scope of the present utility model.

[0021] As attached Figure 1 To Attachment Figure 2 As shown:

[0022] Embodiment 1: The utility model provides a differential pressure reducer, comprising a differential pressure reducing device body 1, the inner side of the body 1 is provided with a pressure control mechanism 2 for controlling the oil and gas delivery volume by pressure difference, and the outer side of the body 1 is connected with a tight mechanism 3 for improving the safety of pipeline oil and gas delivery.

[0023] The pressure control mechanism 2 can greatly improve the pressure difference control working effect of the device. The pressure reducing piston 5, high pressure chamber 6, low pressure chamber 7 and control valve 8 in the pressure control mechanism 2 work in coordination with each other, which not only effectively improves the pressure control working efficiency, but also the device can effectively maintain a certain power consumption and reduce resource waste after the pressure difference control, and further improves the working safety of the device to prevent damage to the device caused by excessive internal pressure.

[0024] The tightening mechanism 3 further improves the working performance of the device. Since the outside of the device is connected to an oil or gas pipeline and the internal pressure of the device is relatively high, if the pipeline connection is not tight enough, it is easy to cause gas leakage and liquid leakage. The screw tightening ring 10 and the pipeline tightener 11 provided in the tightening mechanism 3 can greatly improve the connection tightness of the output pipeline 9 and prevent gas leakage and liquid leakage when the device is working.

[0025] The pressure control mechanism 2 includes a protective outer chamber 4 and a pressure control component, and the pressure control component is arranged inside the protective outer chamber 4 .

[0026] The pressure control assembly mainly includes a pressure reducing piston 5 which is slidably connected to the inner side of the protective outer chamber 4. The upper and lower ends of the protective outer chamber 4 are respectively provided with a high-pressure chamber 6 and a low-pressure chamber 7 which are used to cooperate with the pressure reducing piston 5 to change the pressure environment.

[0027] The outside of the high-pressure chamber 6 is connected to a control valve 8 for controlling the pressure difference, and the other end of the control valve 8 is connected to the inside of the low-pressure chamber 7 , and the outside of the protective outer chamber 4 is connected to the tight connection mechanism 3 .

[0028] From the above, it can be seen that the pressure control mechanism 2 can effectively improve the efficiency of the pressure control work. At the same time, after the device works under pressure difference control, it can not only effectively maintain a certain power consumption and reduce resource waste, but also further improve the working safety of the device and prevent damage to the device caused by excessive internal pressure.

[0029] The pressure control mechanism 2 includes a protective outer chamber 4 and a pressure control component. The pressure control component mainly includes a pressure reducing piston 5 which is slidably connected to the inner side of the protective outer chamber 4. A high-pressure chamber 6 is provided at the upper end of the protective outer chamber 4 for cooperating with the pressure reducing piston 5 to change the pressure environment. A low-pressure chamber 7 is provided at the lower end of the protective outer chamber 4, which are in a conductive state with each other.

[0030] The control valve 8 is connected to the inner side of the high-pressure chamber 6, and the other end is connected to the inner side of the low-pressure chamber 7. The pressure environment inside the protective outer chamber 4 is controlled by the control valve 8, and the pressure reducing piston 5 can slide up and down to cooperate with the high-pressure chamber 6 and the low-pressure chamber 7 to change the pressure environment inside the protective outer chamber 4.

[0031] Embodiment 2: The tight mechanism 3 includes an output pipe 9 and a screw-tightened sealing component arranged outside the output pipe 9 to improve the leak-proof effect. One end of the output pipe 9 is connected to the inner side of the protective outer chamber 4.

[0032] The screw-tightening sealing assembly comprises a screw-tightening ring 10 arranged on the outside of the output pipe 9 and a pipe tightener 11 connected to the outer end. The pipe tightener 11 is screw-tighteningly and sealingly connected to the screw-tightening ring 10 .

[0033] As can be seen from the above, the working cooperation between the screw tightening ring 10 and the pipe tightener 11 provided in the tightening mechanism 3 can greatly improve the connection and tightening effect of the output pipe 9, and prevent the phenomenon of gas leakage and liquid leakage when the device is working.

[0034] The tightening mechanism 3 includes an output pipe 9 and a screw-tightening sealing assembly arranged outside the output pipe 9 to improve the leak-proof effect. The screw-tightening sealing assembly includes a screw-tightening ring 10 arranged outside the output pipe 9 and a pipe tightener 11 connected to the outer end.

[0035] The threaded sealing connection between the pipeline tightener 11 and the threaded tightening ring 10 can greatly improve the conduction connection and tightness effect between the protective outer chamber 4 and the output pipeline 9.

[0036] The embodiments of the present invention are provided for the purpose of illustration and description. Although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can change, modify, replace and modify the above embodiments within the scope of the present invention.

Claims

1. A differential pressure reducer, Features: The invention comprises a pressure differential pressure reducing device body (1), wherein a pressure control mechanism (2) for controlling the oil and gas transmission volume by pressure differential is arranged inside the body (1), and a tight mechanism (3) for improving the safety of pipeline oil and gas transmission is connected to the outside of the body (1).

2. A differential pressure reducer as claimed in claim 1, Features: The pressure control mechanism (2) comprises a protective outer chamber (4) and a pressure control component, wherein the pressure control component is arranged on the inner side of the protective outer chamber (4).

3. A differential pressure reducer as claimed in claim 2, Features: The pressure control assembly mainly comprises a pressure reducing piston (5) slidably connected to the inner side of the protective outer chamber (4), and the upper and lower ends of the protective outer chamber (4) are respectively provided with a high pressure chamber (6) and a low pressure chamber (7) for cooperating with the pressure reducing piston (5) to change the pressure environment.

4. A differential pressure reducer as claimed in claim 3, Features: The outer side of the high-pressure chamber (6) is provided with a control valve (8) for controlling the pressure difference, and the other end of the control valve (8) is connected to the inner side of the low-pressure chamber (7), and the outer side of the protective outer chamber (4) is connected to the tight mechanism (3).

5. A differential pressure reducer as claimed in claim 4, Features: The tight mechanism (3) comprises an output pipe (9) and a screw-tightened sealing component arranged on the outside of the output pipe (9) to improve the anti-leakage effect; one end of the output pipe (9) is connected to the inside of the protective outer bin (4).

6. A differential pressure reducer as claimed in claim 5, Features: The screw-tightening sealing assembly comprises a screw-tightening ring (10) arranged on the outside of the output pipe (9) and a pipe tightener (11) connected to the outer end, and the pipe tightener (11) is screw-tighteningly and sealingly connected to the screw-tightening ring (10).

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