High-precision pilot pressure reducer for spaceflight

Abstract

The utility model relates to the technical field of pilot pressure reducers, in particular to a high-precision pilot pressure reducer for spaceflight. The spaceflight high-precision pilot pressure reducer capable of stabilizing the air pressure comprises a shell, pressure reducing valves, an installation plate, activated carbon cotton and a filter screen, the pressure reducing valves are symmetrically installed on the two sides of the shell, the installation plate is arranged at the lower position of the shell, and the upper end and the lower end of the installation plate are embedded in the shell. Activated carbon cotton is arranged at the two inner ends of the mounting plate, and a filter screen is arranged on the upper end face of the shell. The push plate is pressed to slide so as to push the lead screw and the connecting rod which are connected with the push plate to rotate, meanwhile, the spring is stressed and extruded to stably transport gas in the shell to the supporting plate, the gas is decompressed through the activated carbon cotton, impurities are filtered out at the same time, the gas is decompressed through multiple layers of retarding, and the pressure of the gas is reduced. Therefore, a more stable and effective pressure reduction effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of pilot pressure reducers, and in particular to a high-precision pilot pressure reducer for aerospace use. Background Art

[0002] The pilot pressure reducer is a special device that automatically reduces the working pressure of the pipeline. Its function is to reduce the higher pressure of the pipeline to the required level within a given pressure reduction range. It is widely used in high-rise buildings, areas with excessively high water pressure in urban water supply networks, mines and gas pipelines, etc.

[0003] At the same time, according to the different needs of pilot pressure reducers, the requirements for accuracy are extended to be used in the aviation field. Due to its special use environment, it extends to the demand for high precision. Due to the influence of the pressurized environment, most pilot pressure reducers have small valve seat apertures and large sensitive areas. During the process of compression and decompression, the load is too large, and at the same time, the main spring itself is unevenly compressed during operation, resulting in difficulty in decompression.

[0004] Therefore, in order to solve the above problems, a high-precision pilot pressure reducer for aerospace use which can stabilize the air pressure is proposed. Utility Model Content

[0005] In order to overcome the disadvantages of uneven pressure on the main spring of the pilot pressure reducer in the prior art and difficulty in reducing pressure, the utility model provides a high-precision pilot pressure reducer for aerospace use which can stabilize air pressure.

[0006] In order to solve the above technical problems, the utility model provides a high-precision pilot pressure reducer for aerospace use, including a shell, a pressure reducing valve, a mounting plate, activated carbon cotton, a filter, a baffle, a support plate, a connecting rod, a screw rod, a spring and a push plate. The pressure reducing valves are symmetrically installed on both sides of the shell, a mounting plate is arranged at a lower position of the shell, both ends of the mounting plate are embedded in the interior of the shell, and activated carbon cotton is arranged at both inner ends of the mounting plate, a filter is arranged on the upper end surface of the shell, a baffle is arranged inside the upper position of the shell, a support plate is arranged inside the center position of the shell, a connecting rod is arranged on the support plate, a screw rod is rotatably arranged on the connecting rod, a push plate is arranged on the screw rod, and a spring is sleeved on the screw rod; the spring is located between the push plate and the support plate, and the push plate and the baffle plate are slidably matched.

[0007] Preferably, the surrounding areas of the support plate are hollowed out.

[0008] Preferably, a spiral plate is further included. The spiral plate is rotatably arranged inside the shell and is located between the filter screen and the push plate.

[0009] Preferably, a guide tube I is also included, and the top of the shell is provided with the guide tube I.

[0010] Preferably, a guide tube II is also included, and the bottom of the shell is provided with the guide tube II.

[0011] Preferably, sound insulation cotton is also included. The bottom of the shell is provided with sound insulation cotton inside, and the sound insulation cotton is located below the activated carbon cotton.

[0012] Beneficial effects: 1. The utility model slides by the push plate under pressure, thereby pushing the screw rod and the connecting rod connected thereto to rotate, and at the same time, the spring is squeezed by force to stably transport the gas in the shell to the support plate, and the gas is decompressed and impurities are filtered through the activated carbon cotton, so that the gas is decompressed through multiple layers, thereby achieving a more stable and effective decompression effect;

[0013] 2. The utility model reduces the pressure of the gas after it enters through the streamlined flow guidance of the spiral plate, thereby achieving a better pressure reduction effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional structural schematic diagram of the utility model.

[0015] Figure 2 It is a schematic diagram of the three-dimensional structure of the utility model after the shell is cut open.

[0016] Figure 3 It is a three-dimensional structural schematic diagram of the supporting plate, spring, push plate and other parts of the utility model.

[0017] The markings in the attached drawings are: 1-housing, 2-pressure reducing valve, 3-mounting plate, 4-activated carbon cotton, 5-filter screen, 6-spiral plate, 7-baffle, 8-support plate, 81-connecting rod, 82-screw rod, 9-spring, 10-push plate, 11-guide tube I, 12-guide tube II, 13-sound insulation cotton. DETAILED DESCRIPTION

[0018] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0019] Embodiment: A high-precision pilot pressure reducer for aerospace use, such as Figure 1-Figure 3As shown, it includes a shell 1, a pressure reducing valve 2, a mounting plate 3, activated carbon cotton 4, a filter screen 5, a baffle 7, a support plate 8, a connecting rod 81, a screw rod 82, a spring 9 and a push plate 10. The pressure reducing valve 2 is symmetrically installed on the left and right sides of the shell 1. The pressure reducing valve 2 is used for the circulation and pressure reduction of the gas. The shell 1 is mainly divided into three layers. The lower layer of the shell 1 is fixedly provided with a mounting plate 3. The mounting plate 3 is cylindrical, and the upper and lower ends of the mounting plate 3 are embedded in the shell 1, which can be used as a mounting carrier for parts, and the upper and lower ends of the mounting plate 3 are provided with activated carbon cotton 4. There is a space between the two activated carbon cottons 4, which are arranged in an upper and lower interval manner, and the activated carbon cotton 4 has adsorption and rebound effects, which can be used for the pressure reduction and circulation of the gas, and can also adsorb and remove some impurities in the gas. A filter screen 5 is provided on the upper end surface of the shell 1, and the filter screen 5 can slow down the flow of gas. A baffle plate 7 is provided inside the upper layer of the shell 1, and the baffle plate 7 is annular and has a guiding function. A support plate 8 is provided inside the middle layer of the shell 1, and the middle layer of the shell 1 is in a cavity state, and the surrounding positions of the support plate 8 are in a hollow state, which is suitable for the flow of gas. A connecting rod 81 is fixedly provided at the center position of the support plate 8, and a screw rod 82 is rotatably provided at the center position of the connecting rod 81. A push plate 10 is fixedly provided on the screw rod 82, and a spring 9 is sleeved on the screw rod 82; the spring 9 is located between the push plate 10 and the support plate 8, and the push plate 10 is located at the bottom end of the upper layer of the shell 1, which can push the gas to perform a decompression operation and help stabilize the air pressure. The push plate 10 and the baffle plate 7 are slidably matched.

[0020] like Figure 1 and Figure 2 As shown, it also includes a spiral plate 6. The spiral plate 6 is rotatably arranged inside the shell 1. The spiral plate 6 is located between the filter screen 5 and the push plate 10. The spiral plate 6 is in a streamlined pulp shape and is suitable for slowing down the gas to achieve a decompression effect; a guide pipe Ⅰ11. The top of the shell 1 is provided with a guide pipe Ⅰ11 for connecting the pipeline; a guide pipe Ⅱ12. The bottom of the shell 1 is provided with a guide pipe Ⅱ12, which is mainly used to connect the next pipeline and cooperate with the guide pipe Ⅰ11; sound insulation cotton 13. The inside of the bottom end of the shell 1 is provided with sound insulation cotton 13. The sound insulation cotton 13 is located below the activated carbon cotton 4, and has the effect of noise reduction and sound insulation.

[0021] When the device is needed, the staff first connects the pipes that need to be decompressed at both ends through the guide pipe Ⅰ11 and the guide pipe Ⅱ12, so that the pipes on both sides are respectively wrapped with the guide pipe Ⅰ11 and the guide pipe Ⅱ12, thereby ensuring the overall air tightness, and then the gas inside the pipe begins to circulate, first the high-pressure gas enters the outer shell 1 through the guide pipe Ⅰ11 and the filter 5, the filter 5 slows down and buffers the gas, and then the high-pressure gas is slowed down by the spiral plate 6, the spiral plate 6 starts to rotate under the force, and the gas is buffered due to its special streamline shape, and passes through layers of propeller blades, and finally reaches the upper middle layer of the outer shell 1, the gas squeezes the push plate 10, and the push plate 10 is forced to slide, guided by the baffle 7, and rotates with the screw 82 connected thereto, the screw 82 rotates with the connecting rod 81, so that the push plate 10 and the screw rod 82 move downward at the same time, and the spring 9 is deformed by the force, so that the gas enters the cavity in the middle layer of the shell 1, and the pressure is relieved by extrusion. At the same time, the pressure reducing valve 2 reduces the pressure and circulates the gas. Through this circulation and extrusion, the gas pressure in the shell 1 is more effectively stabilized, and then circulates to the support plate 8. At this time, the gas pressure has been greatly relieved, and then enters the lower layer of the shell 1. The gas is filtered by two layers of activated carbon cotton 4. Because of its elastic effect, the gas is relieved. Finally, after layers of pressure relief, the gas is finally reduced in pressure. At the same time, the sound insulation cotton 13 reduces the noise, and the gas reaches the guide pipe II 12 and flows to the next pipeline to complete the overall pressure relief operation.

[0022] The above-mentioned embodiments only express the preferred implementation of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications, improvements and substitutions can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A high-precision pilot pressure reducer for aerospace, comprising a housing (1), a pressure reducing valve (2) and a mounting plate (3), wherein the pressure reducing valves (2) are symmetrically mounted on both sides of the housing (1), a mounting plate (3) is arranged at a lower position of the housing (1), and the upper and lower ends of the mounting plate (3) are both embedded in the interior of the housing (1); It is characterized in that It also includes activated carbon cotton (4), a filter screen (5), a baffle (7), a support plate (8), a connecting rod (81), a screw rod (82), a spring (9) and a push plate (10). The inner ends of the mounting plate (3) are both provided with activated carbon cotton (4). The upper end surface of the shell (1) is provided with a filter screen (5). The interior of the shell (1) is provided with a baffle (7). The interior of the center of the shell (1) is provided with a support plate (8). The support plate (8) is provided with a connecting rod (81). The connecting rod (81) is rotatably provided with a screw rod (82). The screw rod (82) is provided with a push plate (10). The screw rod (82) is sleeved with a spring (9). The spring (9) is located between the push plate (10) and the support plate (8), and the push plate (10) and the baffle (7) are slidably matched.

2. A high-precision pilot pressure reducer for aerospace use according to claim 1, characterized in that: The surrounding areas of the support plate (8) are in a hollowed-out state.

3. A high-precision pilot pressure reducer for aerospace use according to claim 2, characterized in that: It also includes a spiral plate (6), which is rotatably arranged inside the housing (1), and the spiral plate (6) is located between the filter screen (5) and the push plate (10).

4. A high-precision pilot pressure reducer for aerospace use according to claim 3, characterized in that: It also includes a guide tube I (11), and the top of the shell (1) is provided with a guide tube I (11).

5. A high-precision pilot pressure reducer for aerospace use according to claim 4, characterized in that: It also includes a guide tube II (12), and the bottom of the shell (1) is provided with a guide tube II (12).

6. A high-precision pilot pressure reducer for aerospace use according to claim 5, characterized in that: It also includes sound insulation cotton (13), and the sound insulation cotton (13) is arranged inside the bottom of the shell (1), and the sound insulation cotton (13) is located below the activated carbon cotton (4).

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