CN214618031U - Gas transmission pipeline decompression adjusting device - Google Patents
Gas transmission pipeline decompression adjusting device Download PDFInfo
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- CN214618031U CN214618031U CN202120490465.5U CN202120490465U CN214618031U CN 214618031 U CN214618031 U CN 214618031U CN 202120490465 U CN202120490465 U CN 202120490465U CN 214618031 U CN214618031 U CN 214618031U
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Abstract
The utility model discloses a gas transmission pipeline decompression adjusting device, which belongs to the technical field of pipeline equipment and comprises an adjusting box main body and an adjusting box cover, wherein the adjusting box main body comprises a pressure adjusting sleeve positioned inside the adjusting box main body, a boss-shaped cylinder is integrally formed on the lower side wall of the adjusting box main body, a first exhaust hole is arranged on the side wall of the pressure adjusting sleeve, and a second exhaust hole is arranged on the side wall of the boss-shaped cylinder; the pressure adjusting sleeve can vertically move up and down relative to the boss-shaped cylinder; a weight tray is arranged at the upper part of the pressure adjusting sleeve; the pressure reduction adjusting device has the basic principle that pressure adjustment is carried out according to a formula of pressure, pressure intensity and contact area, and is simple in structure and wide in adjustable pressure numerical range.
Description
Technical Field
The utility model belongs to the technical field of the pipe-line equipment, concretely relates to gas transmission pipeline decompression adjusting device.
Background
The gas pressure reduction adjusting device adjusts the opening size of the opening and closing piece in the valve body so as to adjust the flow of the medium, can reduce the higher gas pressure of the pipeline in front of the valve to the level required by the pipeline behind the valve, and maintains the stability of the pressure of the pipeline behind the valve. The gas pressure reduction adjusting device is an essential accessory in a gas conveying pipeline, and has the fundamental effect of reducing and stabilizing the gas pressure to a fixed value, so that the gas can be conveniently adjusted and controlled.
The gas pressure reducing valve is generally adopted to control the flow of a gas medium in the prior art, but the gas pressure reducing valve sold in the current market is complex in structure, inconvenient to use and high in price.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a gas transmission pipeline decompression adjusting device to solve the technical problem who proposes in the background art.
In order to achieve the purpose, the utility model discloses a gas conveying pipeline decompression adjusting device, which comprises an adjusting box, wherein the adjusting box comprises an adjusting box main body and an adjusting box cover positioned at the upper part of the adjusting box main body; the regulating box main body comprises a pressure regulating sleeve positioned in the regulating box main body, a boss-shaped cylinder is integrally formed on the side wall below the regulating box main body, the boss-shaped cylinder is of a top opening structure, a gap is formed between the outer side of the boss-shaped cylinder and the side wall of the regulating box main body, sealing liquid is filled in the gap to form a sealed cabin, and the pressure regulating sleeve is sleeved on the outer side of the boss-shaped cylinder; a first exhaust hole is formed in the side wall of the pressure adjusting sleeve, and a second exhaust hole is formed in the side wall of the boss-shaped cylinder; the pressure adjusting sleeve can vertically move up and down relative to the boss-shaped cylinder; a weight tray is arranged at the upper part of the pressure adjusting sleeve; an exhaust port is arranged on the side wall of the adjusting box main body and above the boss-shaped cylinder.
Further, the pressure adjusting sleeve comprises an upper sleeve, a sleeve platform and a lower sleeve, the sleeve platform is of a plate-shaped structure with a circular cross section, the bottom of the upper sleeve and the bottom of the lower sleeve are respectively and integrally formed on the upper surface and the lower surface of the sleeve platform and respectively extend towards the upper part and the lower part from the sleeve platform; the inner diameter of the lower sleeve is larger than the outer diameter of the boss-shaped cylinder, and the lower sleeve is sleeved on the outer side of the boss-shaped cylinder; the side wall of the lower sleeve is provided with a first exhaust hole.
Further, the inner diameter of the upper sleeve is larger than the outer diameter of the lower sleeve.
Furthermore, a weight tray fixing rod is vertically and fixedly arranged at the central position of the upper surface of the sleeve platform and faces the upper part of the sleeve platform, and a weight tray is sleeved on the weight tray fixing rod.
Furthermore, the end part of the weight tray fixing rod is sleeved with a first fixing nut. When weights need to be added or reduced, the first fixing nut is unscrewed, and the weight tray sleeve is loaded on or taken down from the weight tray fixing rod; the first fixing nut can prevent the weight tray from sliding off in the using process.
Furthermore, a positioning hole is formed in the sleeve platform and located on the outer side of the upper sleeve, the positioning hole is a through hole, a sliding guide rod is vertically and fixedly arranged at the bottom of the boss-shaped cylinder, and the sliding guide rod penetrates through the positioning hole and extends to the upper portion of the sleeve platform.
Furthermore, the number of the positioning holes is 2, and the positioning holes are respectively positioned at two ends of the sleeve platform which are symmetrical by taking the circle center of the sleeve platform as the center; and 2 sliding guide rods are vertically and fixedly arranged at the positions, corresponding to the positioning holes, of the bottom of the boss-shaped cylinder, and respectively penetrate through the corresponding positioning holes and extend to the upper part of the sleeve platform.
The positioning hole and the sliding guide rod are matched for use, so that the movement of the pressure adjusting sleeve can be guided, the pressure adjusting sleeve can only vertically move along the sliding guide rod, and the pressure adjusting sleeve can be prevented from being shifted in the horizontal direction, so that the adjusting sensitivity of the gas conveying pipeline pressure reduction adjusting device can be ensured.
Furthermore, a second fixing nut is sleeved at the end part of the sliding guide rod. The second fixing nut can play a limiting role to prevent the sliding guide rod from slipping from the positioning hole.
Furthermore, the adjusting box cover comprises a lifting cover and a lifting cover frame, the adjusting box body is of an upper opening structure, the lifting cover is arranged at the upper opening of the adjusting box body, and a sealing ring is arranged at the lower part of the lifting cover and can play a role in sealing so as to completely seal the adjusting box body; a quick-opening bolt is arranged between the lifting cover and the upper part of the adjusting box main body, and the lifting cover is detachably connected with the upper part of the adjusting box main body; the upper part of the lifting cover is fixedly provided with a lifting cover wheel, one end of the lifting cover frame is hinged on the outer side wall of the adjusting box main body, and the other end of the lifting cover frame is fixedly connected with the lifting cover wheel.
When the cover of the adjusting box needs to be opened, the quick-opening bolt is firstly opened and unscrewed, then the cover lifting wheel is lifted, and the cover of the adjusting box is turned to one side of the upper part of the main body of the adjusting box through the hinge joint of the cover lifting frame; otherwise, the cover of the adjusting box is closed.
Furthermore, a pressure gauge is arranged on the lifting cover. The manometer can real-time supervision gas pressure in the gas transmission pipeline decompression adjusting device, and the operator of being convenient for knows the pressure condition, in time records or adjusts equipment.
When the pressure reducing adjusting device is used, the pressure adjusting sleeve can move up and down relative to the boss-shaped cylinder, so that the gas pressure in the gas conveying pipeline is adjusted; the basic principle of the pressure reduction regulating device is based on the formula of pressure, pressure intensity and contact area, namely F is PS; wherein F is pressure, unit: n; p-pressure, unit: pa; s-area, unit: m is2。
A gas contact cavity is formed between the boss-shaped cylinder and the pressure regulating sleeve.
For the pressure reducing regulating device, the pressure P is the pressure to be maintained in the gas conveying pipeline, the area S is the actual contact area between the gas in the pipeline and the pressure regulating sleeve in the gas contact cavity, and the pressure F is the total mass of the pressure regulating sleeve and the weight tray placed on the upper part.
Under the condition that the required gas pressure P in the pipeline and the actual contact area S of the gas in the pipeline and the pressure adjusting sleeve are known, the pressure F required for maintaining the constant pressure in the pipeline can be calculated according to a formula, and the pressure F at the momentI.e. the pressure-regulating sleeve F1With weight plate F2Of the total mass of (c).
(1) When the pressure in the pipeline is smaller than the set value, according to the formula, F is larger than PS, and the pressure adjusting sleeve does not act. At this time, the pressure adjustment sleeve completely falls on the upper end portion of the boss-shaped cylinder.
(2) When the pressure in the pipeline is greater than a set value, according to a formula, F is less than PS, the pressure adjusting sleeve slides upwards under the action of the air pressure in the air contact cavity, when the first exhaust hole at the bottom of the pressure adjusting sleeve rises above the liquid level of sealing liquid in the sealed cabin, the first exhaust hole at the bottom of the pressure adjusting sleeve is communicated with the second exhaust hole in the side wall of the boss-shaped cylinder, and the air in the pipeline sequentially passes through the second exhaust hole and the first exhaust hole to discharge the air pressure outwards under the action of the pressure. At this time, the height of the pressure adjustment sleeve is higher than the upper end portion of the boss-shaped cylinder.
(3) When the gas leaks to the pressure and is reduced to the set pressure, F is larger than PS at the moment, the pressure adjusting sleeve descends, the first exhaust hole at the bottom of the pressure adjusting sleeve descends to a position below the liquid level of the sealing liquid in the sealed cabin, the first exhaust hole at the bottom of the pressure adjusting sleeve is sealed, and the gas in the pipeline is decompressed. The pressure regulating sleeve again falls completely on the upper end of the male cylinder.
The pressure F being a pressure-regulating sleeve F1Weight plate F2Wherein the pressure-regulating sleeve F1The weight of the sleeve is constant, and the weight disk F on the pressure adjusting sleeve can be flexibly adjusted according to the pressure required to be maintained in the pipeline2The quality of the gas in the pipeline is adjusted.
Compared with the prior product, the utility model discloses a gas transmission pipeline decompression adjusting device has following advantage:
(1) the device mainly comprises an adjusting box, a pressure adjusting sleeve and a weight tray, can adjust the pressure in a gas conveying pipeline by adjusting the weight of the weight tray, and has the advantages of simple structure, high adjusting precision and good use stability;
(2) the device can adjust the number and the weight of the weight disks according to the use scene, the operation is more flexible, and the numerical range of pressure reduction and adjustment is wider;
(3) the device has simple structure and low manufacturing cost, and can reduce the equipment investment cost of enterprises.
Drawings
FIG. 1: the cross-sectional structure of the gas transmission pipeline pressure reduction adjusting device is schematic.
FIG. 2: the schematic diagram of the vertical cutting section structure of the boss-shaped cylinder in the adjusting box main body.
FIG. 3: the vertical section structure of the pressure adjusting sleeve is schematic.
FIG. 4: the pressure reduction adjusting device is in a pressure relief state.
Description of reference numerals: 1-a gas delivery pipeline; 2-a regulating box; 11-an air inlet; 12-air outlet; 13-a drain pipe; 14-a ball valve; 21-adjusting box main body; 22-adjusting box cover; 23-an exhaust port; 211-pressure regulating sleeve; 212-boss-shaped cylinder; 213-weight plates; 214-weight tray fixation rods; 215-sliding guide bar; 216-a sealed cabin; 2111-upper sleeve; 2112-sleeve platform; 2113-lower sleeve; 2114-first vent; 2115-positioning holes; 2141-a first fastening nut; 2151-a second retaining nut; 2121-a second vent; 221-lifting a cover; 222-quick-opening bolts; 223-a sealing ring; 224-pressure gauge; 225-lifting cover wheel; 226-cover lifting frame.
Detailed Description
The technical solution of the present invention will be explained in detail by the following embodiments.
Example 1
Fig. 1-3 show a schematic structural diagram and a partial schematic structural diagram of a pressure reduction regulating device of a gas delivery pipeline.
The pressure reduction adjusting device is arranged on a gas conveying pipeline 1 and comprises an adjusting box 2, and the installation position of the adjusting box 2 is vertical to the flow direction of gas in the gas conveying pipeline 1; the adjusting box 2 comprises an adjusting box main body 21 and an adjusting box cover 22 positioned on the upper portion of the adjusting box main body 21, the adjusting box main body 21 is of an upper opening structure, the adjusting box cover 22 is covered on the upper portion of the adjusting box main body 21, and when parts in the adjusting box main body 21 need to be overhauled, the adjusting box cover 22 can be opened for operation.
The adjusting box main body 21 includes a pressure adjusting sleeve 211 located inside the adjusting box main body 21, a boss-shaped cylinder 212 is integrally formed on a lower side wall of the adjusting box main body 21, the boss-shaped cylinder 212 has a top opening structure, a gap is formed between an outer side of the boss-shaped cylinder 212 and the side wall of the adjusting box main body 21, and a sealed chamber 216 is formed by filling a sealing liquid, in this embodiment, the sealing liquid is an antifreeze liquid.
An exhaust port 23 is opened in the sidewall of the adjusting box main body 21 above the boss cylinder 212.
The pressure-adjusting sleeve 211 includes an upper sleeve 2111, a sleeve land 2112, and a lower sleeve 2113, the sleeve land 2113 being a plate-like structure having a circular cross section, and the bottom of the upper sleeve 2111 and the bottom of the lower sleeve 2113 being integrally formed on the upper surface and the lower surface of the sleeve land 2112, respectively, and extending upward and downward from the sleeve land 2112, respectively.
The inner diameter of the upper sleeve 2111 is greater than the outer diameter of the lower sleeve 2113, and the inner diameter of the lower sleeve 2113 is greater than the outer diameter of the boss-shaped cylinder 212; the lower sleeve 2113 is sleeved outside the boss-shaped cylinder 212, and the lower sleeve 2113 can vertically move up and down relative to the boss-shaped cylinder 212;
a first exhaust hole 2114 is formed in the side wall of the lower sleeve 2113, and a second exhaust hole 2121 is formed in the side wall of the boss-shaped cylinder 212;
A weight tray fixing rod 214 is vertically and fixedly arranged at the central position of the upper surface of the sleeve platform 2112 towards the upper part of the sleeve platform 2112, and a first fixing nut 2141 is sleeved on the end part of the weight tray fixing rod 214. A weight tray 213 is sleeved on the weight tray fixing lever 214.
A gas contact chamber is defined between the boss-shaped cylinder 212, the lower sleeve 2113 and the sleeve land 2112.
The adjusting box cover 22 comprises a lifting cover 221 and a lifting cover frame 226, the lifting cover 221 is covered on the upper opening of the adjusting box main body 21, a sealing ring 223 is arranged at the lower part of the lifting cover 221, a quick-opening bolt 222 is arranged between the lifting cover 221 and the upper part of the adjusting box main body 21, and the lifting cover 221 and the upper part of the adjusting box main body 21 are detachably connected; a cover lifting wheel 225 is fixedly arranged at the upper part of the cover lifting 221, one end of the cover lifting frame 226 is hinged on the outer side wall of the adjusting box main body 21, and the other end is fixedly connected with the cover lifting wheel 225;
a pressure gauge 224 is arranged on the lifting cover 221 and can monitor the pressure in the pressure reducing and adjusting device;
when the pressure reducing adjusting device is used, the pressure adjusting sleeve 211 can move up and down relative to the boss-shaped cylinder 212, so that the gas pressure in the gas conveying pipeline 1 is adjusted; the basic principle of the pressure reduction regulating device is based on the formula of pressure, pressure intensity and contact area, namely F is PS; wherein F is pressure, unit: n; p-pressure, unit: pa; s-area, unit: m is2。
For the pressure reducing regulating device, the pressure P is the pressure to be maintained in the gas conveying pipeline, the area S is the actual contact area between the gas in the pipeline and the pressure regulating sleeve in the gas contact cavity, and the pressure F is the total mass of the pressure regulating sleeve and the weight tray placed on the upper part.
Under the condition that the required gas pressure P in the pipeline and the actual contact area S between the gas in the pipeline and the pressure adjusting sleeve 211 are known, the pressure F required for maintaining the constant pressure in the pipeline can be calculated according to a formula, and the pressure F is the pressure adjusting sleeve F1With weight plate F2Of the total mass of (c).
(1) When the pressure in the pipeline is less than the set value, according to the formula, F is greater than PS, and the pressure adjusting sleeve 211 does not act. At this point, sleeve land 2112 is fully seated on the upper end of boss cylinder 212, as shown in FIG. 1.
(2) When the pressure in the pipeline is greater than the set value, according to the formula, at this time, F is less than PS, the pressure adjusting sleeve 211 slides upwards under the action of the air pressure in the air contact chamber, when the first exhaust hole 2114 at the bottom of the pressure adjusting sleeve 211 rises to a position above the antifreeze liquid level in the sealed cabin 216, the first exhaust hole 2114 at the bottom of the pressure adjusting sleeve 211 is communicated with the second exhaust hole 2121 on the side wall of the boss-shaped cylinder 212, and the air in the pipeline passes through the second exhaust hole 2121 and the first exhaust hole 2114 in sequence under the action of the pressure and is discharged outwards through the exhaust hole 23. At this time, the sleeve platform 2112 is higher than the upper end of the boss cylinder 212, and the structure is as shown in fig. 4.
(3) When the gas leaks to the set pressure, wherein F is larger than PS, the pressure adjusting sleeve 211 descends, the first exhaust hole 2114 at the bottom of the pressure adjusting sleeve 211 descends to be lower than the antifreeze liquid level in the sealed cabin 216, the first exhaust hole 2114 at the bottom of the pressure adjusting sleeve 211 is sealed, and the gas in the pipeline is decompressed. The sleeve land 2112 again fully lands on the upper end of the boss cylinder 212, as configured in FIG. 1.
The pressure F being a pressure-regulating sleeve F1Weight plate F2Wherein the pressure-regulating sleeve F1The weight of the sleeve is constant, and the weight disk F on the pressure adjusting sleeve can be flexibly adjusted according to the pressure required to be maintained in the pipeline2The quality of the gas in the pipeline is adjusted.
The above description is only the preferred embodiment of the present invention, and is not intended to limit the present invention, any modification, equivalent replacement, or improvement made within the design concept of the present invention should be included within the protection scope of the present invention.
Claims (10)
1. The utility model provides a gas transmission pipeline decompression adjusting device which characterized in that: the device comprises an adjusting box, wherein the adjusting box comprises an adjusting box main body and an adjusting box cover positioned on the upper part of the adjusting box main body; the regulating box main body comprises a pressure regulating sleeve positioned in the regulating box main body, a boss-shaped cylinder is integrally formed on the side wall below the regulating box main body, the boss-shaped cylinder is of a top opening structure, a gap is formed between the outer side of the boss-shaped cylinder and the side wall of the regulating box main body, sealing liquid is filled in the gap to form a sealed cabin, and the pressure regulating sleeve is sleeved on the outer side of the boss-shaped cylinder; a first exhaust hole is formed in the side wall of the pressure adjusting sleeve, and a second exhaust hole is formed in the side wall of the boss-shaped cylinder; the pressure adjusting sleeve can vertically move up and down relative to the boss-shaped cylinder; a weight tray is arranged at the upper part of the pressure adjusting sleeve; an exhaust port is arranged on the side wall of the adjusting box main body and above the boss-shaped cylinder.
2. The gas delivery conduit pressure reduction regulating device of claim 1, wherein: the pressure adjusting sleeve comprises an upper sleeve, a sleeve platform and a lower sleeve, the sleeve platform is of a plate-shaped structure with a circular cross section, the bottom of the upper sleeve and the bottom of the lower sleeve are integrally formed on the upper surface and the lower surface of the sleeve platform respectively, and extend to the upper part and the lower part from the sleeve platform respectively; the inner diameter of the lower sleeve is larger than the outer diameter of the boss-shaped cylinder, and the lower sleeve is sleeved on the outer side of the boss-shaped cylinder; the side wall of the lower sleeve is provided with a first exhaust hole.
3. The gas delivery conduit pressure reduction regulating device of claim 2, wherein: the inner diameter of the upper sleeve is larger than the outer diameter of the lower sleeve.
4. The gas delivery conduit pressure reduction regulating device of claim 3, wherein: a weight tray fixing rod is vertically and fixedly arranged at the central position of the upper surface of the sleeve platform and faces the upper part of the sleeve platform, and a weight tray is sleeved on the weight tray fixing rod.
5. The gas delivery conduit pressure reduction regulating device of claim 4, wherein: the end part of the weight tray fixing rod is sleeved with a first fixing nut.
6. The gas delivery conduit pressure reduction regulating device of claim 5, wherein: the sleeve platform is provided with a positioning hole which is a through hole and is positioned on the outer side of the upper sleeve, and the bottom of the boss-shaped cylinder is vertically and fixedly provided with a sliding guide rod which penetrates through the positioning hole and extends to the upper part of the sleeve platform.
7. The gas delivery conduit pressure reduction regulating device of claim 6, wherein: the number of the positioning holes is 2, and the positioning holes are respectively positioned at two ends of the sleeve platform which are symmetrical by taking the circle center of the sleeve platform as the center; and 2 sliding guide rods are vertically and fixedly arranged at the positions, corresponding to the positioning holes, of the bottom of the boss-shaped cylinder, and respectively penetrate through the corresponding positioning holes and extend to the upper part of the sleeve platform.
8. The gas delivery conduit pressure reduction regulating device of claim 7, wherein: and the end part of the sliding guide rod is sleeved with a second fixing nut.
9. The gas delivery conduit pressure reduction modulation device of any one of claims 1-8, wherein: the adjusting box cover comprises a lifting cover and a lifting cover frame, the adjusting box main body is of an upper opening structure, the lifting cover is arranged at an upper opening of the adjusting box main body, a sealing ring is arranged at the lower part of the lifting cover, a quick-opening bolt is arranged between the lifting cover and the upper part of the adjusting box main body, and the lifting cover is detachably connected with the upper part of the adjusting box main body; the upper part of the lifting cover is fixedly provided with a lifting cover wheel, one end of the lifting cover frame is hinged on the outer side wall of the adjusting box main body, and the other end of the lifting cover frame is fixedly connected with the lifting cover wheel.
10. The gas delivery conduit pressure reduction regulating device of claim 9, wherein: the lifting cover is provided with a pressure gauge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120490465.5U CN214618031U (en) | 2021-03-08 | 2021-03-08 | Gas transmission pipeline decompression adjusting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120490465.5U CN214618031U (en) | 2021-03-08 | 2021-03-08 | Gas transmission pipeline decompression adjusting device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214618031U true CN214618031U (en) | 2021-11-05 |
Family
ID=78393583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120490465.5U Active CN214618031U (en) | 2021-03-08 | 2021-03-08 | Gas transmission pipeline decompression adjusting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214618031U (en) |
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2021
- 2021-03-08 CN CN202120490465.5U patent/CN214618031U/en active Active
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