CN111692532A - Buried voltage regulating device - Google Patents
Buried voltage regulating device Download PDFInfo
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- CN111692532A CN111692532A CN202010277238.4A CN202010277238A CN111692532A CN 111692532 A CN111692532 A CN 111692532A CN 202010277238 A CN202010277238 A CN 202010277238A CN 111692532 A CN111692532 A CN 111692532A
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- 230000001105 regulatory effect Effects 0.000 title claims abstract description 54
- 238000007789 sealing Methods 0.000 claims abstract description 119
- 230000002093 peripheral effect Effects 0.000 claims description 12
- 230000000740 bleeding effect Effects 0.000 claims description 9
- 238000001125 extrusion Methods 0.000 claims description 4
- 230000001681 protective effect Effects 0.000 claims description 3
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000009434 installation Methods 0.000 description 6
- 230000033228 biological regulation Effects 0.000 description 4
- 238000010276 construction Methods 0.000 description 3
- 238000012423 maintenance Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000006641 stabilisation Effects 0.000 description 2
- 238000011105 stabilization Methods 0.000 description 2
- 206010023230 Joint stiffness Diseases 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000007726 management method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/22—Excess-flow valves actuated by the difference of pressure between two places in the flow line
- F16K17/24—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member
- F16K17/26—Excess-flow valves actuated by the difference of pressure between two places in the flow line acting directly on the cutting-off member operating in either direction
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/20—Excess-flow valves
- F16K17/34—Excess-flow valves in which the flow-energy of the flowing medium actuates the closing mechanism
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Control Of Fluid Pressure (AREA)
Abstract
The invention discloses a buried pressure regulating device, which comprises a cylinder body and a pressure regulating assembly, wherein the left side and the right side of the cylinder body are correspondingly provided with an air inlet pipe connector and an air outlet pipe connector, the upper end and the lower end of the cylinder body are correspondingly provided with an upper sealing plate and a lower sealing plate, and the upper sealing plate is provided with a mounting hole and is fixedly provided with an upper bracket; the inner cavity of the cylinder body is divided into an air inlet cavity and an air outlet cavity by a baffle plate assembly, the baffle plate assembly comprises a lower baffle plate, an upper baffle plate and a vertical baffle plate, the lower baffle plate is horizontally arranged at the lower side of an air inlet pipe joint, the lower baffle plate is provided with an air vent and is fixedly provided with a lower bracket, the upper baffle plate is arranged at the upper side of the air outlet pipe joint, and the upper end and the lower end of the vertical baffle plate are correspondingly connected with the upper baffle plate and the; the pressure regulating assembly comprises a pressure regulator and a blind plate, the pressure regulator and the blind plate are connected through a pull rod device, the lower end of the pressure regulator is clamped in the lower bracket, a lower sealing structure is arranged between the pressure regulator and the blind plate, and the blind plate is clamped in the upper bracket, and a lower sealing structure is arranged between the pressure regulator and the blind plate. The sealing device has the advantages of compact structure, convenience in disassembly and assembly, reliability in sealing and strong adaptability.
Description
Technical Field
The invention relates to a pressure regulator, in particular to a pressure regulator vertically buried underground.
Background
In a gas pipe network, a traditional pressure regulating station is usually arranged on the ground, so that a station house needs to be built for the traditional pressure regulating station so as to manage and maintain equipment such as a pressure regulator, a large amount of land resources and ground space are occupied, and urban planning is not facilitated. In order to solve the problem, the mode that equipment such as a pressure regulator is buried underground and an operation opening is arranged on the upper side of the pressure regulator appears in the field at present, but the air inlet and the air outlet of the existing buried gas pressure regulator have large height difference, so that the vertical size is large, the buried depth is large when the gas inlet and the air outlet are buried, the elevation of the air inlet and the air outlet is required to be adjusted through an elbow, the buried gas pressure regulator is connected with buried gas pipelines on two sides, the construction amount is increased, and the installation difficulty is large. Particularly, the existing buried gas pressure regulator adopts a plane sealing structure, and has the problems of unreliable sealing and poor safety.
Disclosure of Invention
The invention aims to provide a buried voltage regulating device which has the advantages of compact structure, convenience in disassembly and assembly, reliability in sealing and strong adaptability, and can effectively reduce buried depth, reduce installation difficulty and improve safety.
In order to solve the problems in the prior art, the invention provides a buried pressure regulating device which comprises a cylinder body and a pressure regulating assembly arranged in the cylinder body, wherein the left side and the right side of the cylinder body are correspondingly provided with an air inlet pipe connector and an air outlet pipe connector, the upper end and the lower end of the cylinder body are correspondingly provided with an upper sealing plate and a lower sealing plate, the upper sealing plate is provided with an installation hole, and an annular upper bracket is fixed at the position, corresponding to the installation hole, of the upper side of the upper sealing plate; the inner cavity of the barrel is divided into an air inlet cavity and an air outlet cavity by a baffle plate assembly, the baffle plate assembly comprises a lower baffle plate, an upper baffle plate and a vertical baffle plate, the lower baffle plate is horizontally arranged and is positioned at the lower side of an air inlet pipe joint, the lower baffle plate is provided with an air vent communicated with the air inlet cavity and the air outlet cavity, an annular lower support seat is fixed at the position, corresponding to the air vent, of the upper side of the lower baffle plate, the upper baffle plate is horizontally arranged and is positioned at the upper side of the air outlet pipe joint, and the upper end and the lower end of the vertical baffle plate are; the pressure regulating subassembly includes that vertical voltage regulator and interval set up in the blind plate of voltage regulator upside, connects through a plurality of pull rod devices along circumference distribution between voltage regulator and the blind plate, and the lower extreme of voltage regulator clamps in lower bracket and is equipped with seal structure down between the two, and the blind plate clamps in last bracket and is equipped with seal structure down between the two.
Further, the buried pressure regulating device comprises a lower bracket, wherein an inner hole of the lower bracket comprises a first large hole and a first small hole which are distributed up and down, a first ring platform is formed at the joint of the first large hole and the first small hole, a first ring groove is formed in the first ring platform along the circumferential direction, and a first sealing ring with a rectangular single-side section is installed in the first ring groove; the lower end of the pressure regulator is positioned in a first large hole of the lower bracket, a first sealing groove is arranged on the peripheral wall of the lower end of the pressure regulator, and a first sealing ring with a circular unilateral section is arranged in the first sealing groove; the lower sealing structure is a first ring groove, a first sealing ring, a first sealing groove and a first sealing ring.
Furthermore, the buried pressure regulating device is characterized in that the peripheral wall of the first large hole is in transitional connection with the first annular table through a first conical surface, a first conical part attached to the first conical surface is arranged at the lower end of the pressure regulator, and a gap is reserved between the bottom of the pressure regulator and the first annular table; the opening of the first ring groove is trumpet-shaped.
Further, the buried pressure regulating device comprises an inner hole of the upper bracket, a second ring platform and a second sealing ring, wherein the inner hole of the upper bracket comprises a second large hole and a second small hole which are distributed up and down; the blind plate is positioned in a second large hole of the upper bracket, a second sealing groove is formed in the peripheral wall of the blind plate, and a second sealing ring with a circular single-side section is installed in the second sealing groove; the upper sealing structure is a second annular groove, a second sealing ring, a second sealing groove and a second sealing ring.
Further, the buried pressure regulating device is characterized in that the peripheral wall of the second large hole is in transition connection with the second annular table through a second conical surface, the blind plate is provided with a second conical part attached to the second conical surface, and a gap is reserved between the bottom of the blind plate and the second annular table; the opening of the second ring groove is trumpet-shaped.
Further, the buried voltage regulating device is characterized in that a cylindrical connecting frame is fixed on the lower side of the blind plate, and a connecting flange is arranged at the lower end of the connecting frame; the pull rod device comprises a pull rod, the lower end of the pull rod is fixedly connected with the pressure regulator, the upper end of the pull rod penetrates through the connecting flange and is rotatably provided with a limiting nut, a spring seat is arranged in the middle of the pull rod, and a pre-tightening spring sleeved on the pull rod is arranged between the spring seat and the connecting flange.
Further, the buried pressure regulating device is characterized in that a support ring made of rubber is sleeved on the upper half portion of the pressure regulator, a filter cylinder is arranged between the support ring and the blind plate, and the upper half portion of the filter cylinder is located in the connecting frame.
Further, the buried pressure regulating device is characterized in that a stop valve is mounted on the blind plate, an adapter with a T-shaped cross section is fixed at the lower end of a valve rod of the stop valve, a plugging disc is mounted at the lower end of the adapter, a first sealing pad corresponding to the periphery of an upper port of a pressure regulator is embedded in the lower side surface of the plugging disc, and a stepped hole is formed in the plugging disc along the axis; the lower end of the adapter is provided with a conical head and extends into a stepped hole of the plugging disc, a locking ring of a check ring is arranged in the stepped hole of the plugging disc on the upper side of the conical head, an extrusion spring sleeved on the adapter is arranged between the check ring and the conical head, and a second sealing gasket is arranged in the stepped hole of the plugging disc on the lower side of the conical head; and a power-assisted spring sleeved around the valve rod is further arranged between the valve body of the cut-off valve and the adapter, and a spring-stabilizing pipe is sleeved between the power-assisted spring and the valve rod.
Further, the buried pressure regulating device is characterized in that a pressure gauge and a differential pressure transmitter are arranged on the blind plate, a bleeding valve is arranged on the upper sealing plate and is connected with an air outlet pipe joint through a bleeding pipe, and a protective box is further hermetically fixed on the upper sealing plate.
Compared with the prior art, the buried voltage regulating device has the following advantages: the invention sets up the barrel and the pressure regulating assembly installed in the barrel, sets up the air inlet pipe joint and air outlet pipe joint on the left and right sides of the barrel correspondingly, set up upper seal plate and lower seal plate on the upper and lower end of the barrel correspondingly, make the upper seal plate set up the mounting hole, and set up the upper bracket fixed and in the form of ring in the upper side of the upper seal plate and position corresponding to mounting hole; the inner cavity of the cylinder is divided into an air inlet cavity and an air outlet cavity by a baffle plate assembly, the baffle plate assembly comprises a lower baffle plate, an upper baffle plate and a vertical baffle plate, the lower baffle plate is horizontally arranged and is positioned at the lower side of an air inlet pipe joint, the lower baffle plate is provided with an air vent communicated with the air inlet cavity and the air outlet cavity, a fixed annular lower bracket is arranged at the position, corresponding to the air vent, of the upper side of the lower baffle plate, the upper baffle plate is horizontally arranged and is positioned at the upper side of an air outlet pipe joint, and the upper end and the lower end of the vertical baffle plate are correspondingly connected with the; the pressure regulating assembly comprises a vertical pressure regulator and a blind plate arranged on the upper side of the pressure regulator at intervals, the pressure regulator and the blind plate are connected through a plurality of pull rod devices distributed along the circumferential direction, the lower end of the pressure regulator is clamped in the lower bracket and a lower sealing structure is arranged between the lower bracket and the blind plate, and the blind plate is clamped in the upper bracket and a lower sealing structure is arranged between the upper bracket and the blind plate. Therefore, the buried voltage regulating device with compact structure, convenient assembly and disassembly, reliable sealing and strong adaptability is formed. In practical application, the buried pressure regulating device is vertically buried underground, the gas inlet pipe joint and the gas outlet pipe joint are correspondingly connected with buried gas pipelines on two sides, and the purposes of pressure regulation and pressure stabilization can be realized by controlling the pressure regulator in the process that gas sequentially passes through the gas inlet pipe joint, the gas inlet cavity, the upper port of the pressure regulator, the lower port of the pressure regulator, the gas outlet cavity and the gas outlet pipe joint. The inner cavity of the cylinder is divided into the air inlet cavity and the air outlet cavity by the baffle assembly, so that the air inlet pipe joint and the air outlet pipe joint are positioned in the same horizontal plane, and the height can be adjusted at will according to the buried depth, on one hand, the vertical size of the pressure adjusting device can be effectively reduced, the buried construction amount is reduced, on the other hand, the elevation of the air inlet pipe joint and the air outlet pipe joint does not need to be adjusted by adopting an elbow, the installation difficulty is reduced, and the adaptability to buried gas pipelines is enhanced. Meanwhile, the upper bracket and the lower bracket are arranged, and the pressure regulating assembly formed by combining the pressure regulator, the blind plate and the pull rod device is arranged, so that the lower end of the pressure regulator and the blind plate are correspondingly clamped in the lower bracket and the upper bracket when the pressure regulating assembly is installed, the corresponding positions can be reliably sealed through the lower sealing structure and the upper sealing structure, the safety is improved, and the pressure regulating assembly has the characteristics of simplicity in operation, convenience in disassembly and maintenance.
The buried voltage regulating device of the present invention will be further described in detail with reference to the specific embodiments shown in the accompanying drawings.
Drawings
Fig. 1 is a schematic structural diagram of a buried voltage regulating device of the present invention;
FIG. 2 is an enlarged view of a portion of the portion A of FIG. 1;
FIG. 3 is an enlarged view of a portion of FIG. 1 at position B;
FIG. 4 is an enlarged view of a portion of FIG. 1 at position C;
FIG. 5 is an enlarged view of a portion of FIG. 1 at position D;
FIG. 6 is a cross-sectional view of an upper bracket of an underground voltage regulation apparatus of the present invention;
FIG. 7 is an enlarged view of a portion of FIG. 6 at position E;
FIG. 8 is a cross-sectional view of a lower bracket of an underground voltage regulation apparatus of the present invention;
fig. 9 is a partial enlarged view of the position F in fig. 8.
Detailed Description
First, it should be noted that, the directional terms such as up, down, left, right, front, rear, etc. described in the present invention are only described with reference to the accompanying drawings for understanding, and are not intended to limit the technical solution and the claimed scope of the present invention.
As shown in fig. 1 to 9, the embodiment of the buried voltage regulating device of the present invention includes a cylinder 1 and a voltage regulating assembly installed in the cylinder 1. An air inlet pipe joint 11 and an air outlet pipe joint 12 are correspondingly arranged at the left side and the right side of the cylinder body 1, and an upper sealing plate 13 and a lower sealing plate 14 are correspondingly arranged at the upper end and the lower end of the cylinder body 1. The upper sealing plate 13 is provided with mounting holes, and a fixed annular upper bracket 2 is provided at a position corresponding to the mounting holes on the upper side of the upper sealing plate 13. The inner cavity of the cylinder body 1 is divided into an air inlet cavity and an air outlet cavity by a baffle plate component. The baffle plate assembly specifically comprises a lower baffle plate 15, an upper baffle plate 16 and a vertical baffle plate 17, the lower baffle plate 15 is horizontally arranged and is positioned at the lower side of the air inlet pipe joint 11, the lower baffle plate 15 is provided with a vent hole for communicating the air inlet cavity and the air outlet cavity, and a fixed annular lower support seat 3 is arranged at the position, corresponding to the vent hole, on the upper side of the lower baffle plate 15; the upper baffle 16 is horizontally arranged and positioned at the upper side of the air outlet pipe joint 12, and the upper end and the lower end of the vertical baffle 17 are correspondingly connected with the upper baffle 16 and the lower baffle 15. The pressure regulating subassembly specifically includes vertical voltage regulator 4 and the blind plate 5 of interval setting at 4 upsides of voltage regulator, makes between voltage regulator 4 and the blind plate 5 connect through a plurality of pull rod device 6 along circumference distribution. The lower end of the pressure regulator 4 is snap fitted into the lower bracket 3 with a lower seal structure therebetween, and the blind plate 5 is snap fitted into the upper bracket 2 with a lower seal structure therebetween.
Through the structure arrangement, the buried voltage regulating device with compact structure, convenient assembly and disassembly, reliable sealing and strong adaptability is formed. In practical application, the buried pressure regulating device is vertically buried underground, the gas inlet pipe joint 11 and the gas outlet pipe joint 12 are correspondingly connected with buried gas pipelines at two sides, and the purposes of pressure regulation and pressure stabilization can be realized by controlling the pressure regulator 4 in the process that gas sequentially passes through the gas inlet pipe joint 11, the gas inlet cavity, the upper port of the pressure regulator 4, the lower port of the pressure regulator 4, the gas outlet cavity and the gas outlet pipe joint 12. According to the invention, the inner cavity of the cylinder body 1 is divided into the air inlet cavity and the air outlet cavity by arranging the baffle plate component, so that the air inlet pipe joint 11 and the air outlet pipe joint 12 can be positioned in the same horizontal plane, and the height can be adjusted at will according to the buried depth, so that the vertical size of the pressure regulating device can be effectively reduced, the buried construction amount is reduced, the elevation of the air inlet pipe joint 11 and the elevation of the air outlet pipe joint 12 do not need to be adjusted by adopting an elbow, the installation difficulty is reduced, and the adaptability to buried gas pipelines is enhanced. Meanwhile, the upper bracket 2 and the lower bracket 3 are arranged, and the pressure regulating assembly formed by combining the pressure regulator 4, the blind plate 5 and the pull rod device 6 is arranged, so that the lower end of the pressure regulator 4 and the blind plate 5 are correspondingly clamped in the lower bracket 3 and the upper bracket 2 when the pressure regulating device is installed, reliable sealing of corresponding positions can be realized through the lower sealing structure and the upper sealing structure, the safety is improved, and the pressure regulating device has the characteristics of simplicity in operation, convenience in disassembly and assembly and convenience in maintenance. It should be noted that, in order to ensure the effectiveness of the baffle plate assembly in separating the inner cavity of the cylinder 1, the lower baffle plate 15, the upper baffle plate 16 and the vertical baffle plate 17 should be respectively connected with the cylinder 1 in a sealing manner, and the upper bracket 2 and the lower bracket 3 should be connected with the upper closing plate 13 and the lower baffle plate 15 in a sealing manner, which is usually welded in the present invention.
As an optimized scheme, in the present embodiment, the inner hole of the lower seat 3 adopts a structure including a first large hole 31 and a first small hole 32 which are distributed vertically, so that a first annular table 33 is formed at a connection position of the first large hole 31 and the first small hole 32, a first annular groove 34 is arranged on the first annular table 33 along the circumferential direction, and a first sealing ring 35 with a rectangular single-side cross section is installed in the first annular groove 34. The lower end of the pressure regulator 4 is clamped in the first large hole 31 of the lower bracket 3, a first sealing groove is arranged on the peripheral wall of the lower end of the pressure regulator 4, and a first sealing ring 41 with a circular unilateral section is arranged in the first sealing groove. The lower sealing structure is a three-dimensional sealing structure formed by combining the first ring groove 34, the first sealing ring 35, the first sealing groove and the first sealing ring 41, wherein the first ring groove 34 and the first sealing ring 35 are plane sealing structures, and the first sealing groove and the first sealing ring 41 are vertical sealing structures. The structural arrangement can effectively improve the connection stability and enhance the sealing reliability and safety. Meanwhile, in the present embodiment, the peripheral wall of the first large hole 31 and the first annular platform 33 are transitionally connected by the first conical surface 36, the lower end of the pressure regulator 4 is provided with the first conical portion 42 attached to the first conical surface 36, a gap is left between the bottom of the pressure regulator 4 and the first annular platform 33, and the opening of the first annular groove 34 is configured to have a trumpet-shaped cross section. The structure arrangement can improve the joint tightness between the pressure regulator 4 and the lower support 3, and the purpose of centering and positioning can be realized when the pressure regulating assembly is installed through the matching of the first conical part 42 and the first conical surface 36, so that the convenience of operation is improved; when the first sealing ring 35 is pushed down by the pressure regulator 4, the horn-shaped opening through the first ring groove 34 can expand the first sealing ring 35 to two sides, so that the adaptability of the first sealing ring 35 is improved, the periphery of the first sealing ring 35 can be tightly attached to the pressure regulator 4, and the sealing reliability is enhanced. In practice, the present invention will typically provide more than two sets of first ring groove 34 and first seal ring 35.
Similarly, in the present embodiment, the inner hole of the upper bracket 2 also adopts a structure including the second large hole 21 and the second small hole 22 distributed vertically, so that the joint of the second large hole 21 and the second small hole 22 forms a second annular table 23, a second annular groove 24 is arranged on the second annular table 23 along the circumferential direction, and a second sealing ring 25 with a rectangular single-side cross section is installed in the second annular groove 24. The blind plate 5 is clamped in the second large hole 21 of the upper bracket 2, a second sealing groove is arranged on the peripheral wall of the blind plate 5, and a second sealing ring 51 with a round single-side cross section is arranged in the second sealing groove. The upper sealing structure is a three-dimensional sealing structure formed by combining the second ring groove 24, the second sealing ring 25, the second sealing groove and the second sealing ring 51, wherein the second ring groove 24 and the second sealing ring 25 are plane sealing structures, and the second sealing groove and the second sealing ring 51 are vertical sealing structures. This arrangement also improves the stability of the connection and enhances the reliability and safety of the seal. Similarly, in the present embodiment, the peripheral wall of the second large hole 21 and the second annular platform 23 are transitionally connected by the second tapered surface 26, the blind plate 5 is provided with the second tapered portion 52 attached to the second tapered surface 26, a gap is left between the bottom of the blind plate 5 and the second annular platform 23, and the opening of the second annular groove 24 is configured to have a trumpet-shaped cross section. Through the matching of the second conical part 52 and the second conical surface 26, automatic centering and positioning are realized when the pressure regulating assembly is installed, and the convenience of operation is improved; the horn-shaped opening structure of the second ring groove 24 improves the adaptability of the second sealing ring 25, can ensure that the periphery of the second sealing ring 25 is tightly attached to the pressure regulator 4, and enhances the sealing reliability. It should be noted that, in order to ensure the stability and safety of the structure in practical applications, a locking ring structure is usually further provided between the blind plate 5 and the upper bracket 2, and the locking ring structure is a mature technology in the field and is not described herein again.
In the present invention, a cylindrical connecting frame 53 is fixed to the lower side of the blind plate 5, and a connecting flange 54 is provided at the lower end of the connecting frame 53. The pull rod device 6 adopts the following structure: including pull rod 61, let the lower extreme and the regulator 4 fixed connection of pull rod 61, let the upper end of pull rod 61 pass flange 54 and spiral shell and adorn stop nut, set up spring holder 62 in the middle part of pull rod 61, set up the pretension spring 63 of cover on pull rod 61 between spring holder 62 and flange 54. The pull rod device 6 with the structure has the advantages of convenience in adjustment and strong adaptability, and the reliability of the lower sealing structure is enhanced by applying downward pressure on the pressure regulator 4 through the pre-tightening spring 63.
In the present embodiment, as an optimized solution, a support ring 7 made of rubber is fitted to the upper half of the pressure regulator 4, a filter cartridge 8 is disposed between the support ring 7 and the blind plate 5, and the upper half of the filter cartridge 8 is positioned in the connecting frame 53. Realized the filtration to the gas through setting up cartridge filter 8, strengthened pressure regulating device's function, the elastic action through support ring 7 has improved cartridge filter 8's adaptability, has guaranteed cartridge filter 8's stability through link 53. Meanwhile, according to the specific embodiment, the shut-off valve 9 is mounted on the blind plate 5, the adapter 92 with the T-shaped cross section is fixed at the lower end of the valve rod 91 of the shut-off valve 9, the plugging disc 93 is mounted at the lower end of the adapter 92, the first sealing pad 931 corresponding to the periphery of the upper port of the pressure regulator 4 is embedded in the lower side surface of the plugging disc 93, and the stepped hole is formed in the plugging disc 93 along the axis. The lower end of the adaptor 92 is provided with a conical head 921 and extends into a stepped hole of the plugging disc 93, a lock ring 933 of a retainer ring 932 is arranged in the stepped hole of the plugging disc 93 on the upper side of the conical head 921, an extrusion spring 94 sleeved on the adaptor 92 is arranged between the retainer ring 932 and the conical head 921, a second sealing gasket 934 is arranged in the stepped hole of the plugging disc 93 on the lower side of the conical head 921, and the tip of the conical head 921 is pressed in an inner cavity of the second sealing gasket 934. In addition, an assist spring 95 sleeved around the valve rod 91 is arranged between the valve body of the shut-off valve 9 and the adaptor 92, and a spring stabilizing pipe 96 is sleeved between the assist spring 95 and the valve rod 91. When the pressure of the air outlet exceeds the set pressure value of the shut-off valve 9, the shut-off valve 9 is actuated and the upper port of the pressure regulator 4 is sealed by the plugging disc 93, so that the technical purpose of automatic cut-off can be realized, the safety of downstream equipment is effectively protected, and the safety is enhanced. By arranging the structure that the conical head 921, the extrusion spring 94, the retainer ring 932, the lock ring 933 and the second sealing gasket 934 are matched, on the basis of ensuring the connection sealing performance, the adaptability of the sealing disc 93 to the upper port of the pressure regulator 4 is improved, and the sealing reliability during sealing is ensured; the auxiliary force provided by the power spring 95 improves the action sensitivity of the shut-off valve 9 during plugging, and the stability of the power spring 95 is ensured through the spring stabilizing pipe 96.
It should be noted that, in practical application, the invention usually further arranges a pressure gauge and a differential pressure transmitter on the blind plate 5 so as to monitor the pressure regulating device; and set up the bleeding valve on the upper closing plate 13, and make the bleeding valve connect with the air outlet pipe joint 12 through the bleeding pipe, let out through the bleeding pipe and can effectively guarantee the security when the gas outlet pressure is too high. In order to protect these components, the present invention also sealingly secures a protective enclosure to the upper closure plate 13. In addition, for convenience of management and maintenance of the pressure regulating device, the invention generally connects the gas inlet pipe joint 11 and the gas outlet pipe joint 12 with buried gas pipelines on two sides through the gas inlet ball valve 111 and the gas outlet ball valve 121 correspondingly, so as to cut off gas paths on two sides through the gas inlet ball valve 111 and the gas outlet ball valve 121 when needed.
The above examples are only for describing the preferred embodiments of the present invention, and do not limit the scope of the claimed invention, and various modifications made by those skilled in the art according to the technical solutions of the present invention should fall within the scope of the invention defined by the claims without departing from the design concept of the present invention.
Claims (9)
1. A buried pressure regulating device comprises a cylinder body (1) and a pressure regulating assembly arranged in the cylinder body (1), and is characterized in that the left side and the right side of the cylinder body (1) are correspondingly provided with an air inlet pipe joint (11) and an air outlet pipe joint (12), the upper end and the lower end of the cylinder body (1) are correspondingly provided with an upper sealing plate (13) and a lower sealing plate (14), the upper sealing plate (13) is provided with a mounting hole, and an annular upper bracket (2) is fixed at the position, corresponding to the mounting hole, of the upper side of the upper sealing plate (13); the inner cavity of the barrel body (1) is divided into an air inlet cavity and an air outlet cavity through a baffle plate assembly, the baffle plate assembly comprises a lower baffle plate (15), an upper baffle plate (16) and a vertical baffle plate (17), the lower baffle plate (15) is horizontally arranged and is positioned at the lower side of an air inlet pipe joint (11), the lower baffle plate (15) is provided with vent holes communicated with the air inlet cavity and the air outlet cavity, an annular lower bracket (3) is fixed at the position, corresponding to the vent holes, of the upper side of the lower baffle plate (15), the upper baffle plate (16) is horizontally arranged and is positioned at the upper side of an air outlet pipe joint (12), and the upper end and the lower end of the vertical baffle plate (17) are correspondingly connected with the upper baffle plate (; the pressure regulating subassembly includes that vertical voltage regulator (4) and interval set up in blind plate (5) of voltage regulator (4) upside, connects through a plurality of pull rod device (6) along circumference distribution between voltage regulator (4) and blind plate (5), and the lower extreme of voltage regulator (4) clamps and is equipped with seal structure down in lower bracket (3) and between the two, and blind plate (5) clamp and are equipped with seal structure down in last bracket (2) and between the two.
2. The buried pressure regulating device according to claim 1, wherein the inner hole of the lower bracket (3) comprises a first large hole (31) and a first small hole (32) which are distributed up and down, a first annular table (33) is formed at the joint of the first large hole (31) and the first small hole (32), a first annular groove (34) is formed in the first annular table (33) along the circumferential direction, and a first sealing ring (35) with a rectangular single-side cross section is installed in the first annular groove (34); the lower end of the pressure regulator (4) is positioned in a first large hole (31) of the lower bracket (3), a first sealing groove is arranged on the peripheral wall of the lower end of the pressure regulator (4), and a first sealing ring (41) with a circular unilateral section is arranged in the first sealing groove; the lower sealing structure is a first ring groove (34), a first sealing ring (35), a first sealing groove and a first sealing ring (41).
3. The buried voltage regulating device according to claim 2, wherein the peripheral wall of the first large hole (31) is in transitional connection with the first annular table (33) through a first conical surface (36), the lower end of the voltage regulator (4) is provided with a first conical part (42) attached to the first conical surface (36), and a gap is reserved between the bottom of the voltage regulator (4) and the first annular table (33); the opening of the first ring groove (34) is trumpet-shaped.
4. The buried pressure regulating device according to claim 1, wherein the inner hole of the upper bracket (2) comprises a second large hole (21) and a second small hole (22) which are distributed up and down, a second ring platform (23) is formed at the joint of the second large hole (21) and the second small hole (22), a second ring groove (24) is formed in the second ring platform (23) along the circumferential direction, and a second sealing ring (25) with a rectangular single-side section is installed in the second ring groove (24); the blind plate (5) is positioned in the second large hole (21) of the upper bracket (2), a second sealing groove is formed in the peripheral wall of the blind plate (5), and a second sealing ring (51) with a circular single-side section is installed in the second sealing groove; the upper sealing structure is a second ring groove (24), a second sealing ring (25), a second sealing groove and a second sealing ring (51).
5. The buried voltage regulating device according to claim 4, wherein the peripheral wall of the second large hole (21) is in transitional connection with the second annular table (23) through a second taper surface (26), the blind plate (5) is provided with a second taper part (52) attached to the second taper surface (26), and a gap is reserved between the bottom of the blind plate (5) and the second annular table (23); the opening of the second ring groove (24) is trumpet-shaped.
6. The buried voltage regulating device according to claim 1, characterized in that a cylindrical connecting frame (53) is fixed on the lower side of the blind plate (5), and a connecting flange (54) is arranged at the lower end of the connecting frame (53); the pull rod device (6) comprises a pull rod (61), the lower end of the pull rod (61) is fixedly connected with the pressure regulator (4), the upper end of the pull rod (61) penetrates through the connecting flange (54) and is provided with a limiting nut in a rotating mode, the middle of the pull rod (61) is provided with a spring seat (62), and a pre-tightening spring (63) sleeved on the pull rod (61) is arranged between the spring seat (62) and the connecting flange (54).
7. A buried voltage regulating device according to claim 6, characterized in that the upper half of the voltage regulator (4) is sleeved with a support ring (7) made of rubber, a filter cartridge (8) is arranged between the support ring (7) and the blind plate (5), and the upper half of the filter cartridge (8) is arranged in the connecting frame (53).
8. The buried pressure regulating device according to claim 1, wherein a stop valve (9) is mounted on the blind plate (5), an adapter (92) with a T-shaped cross section is fixed at the lower end of a valve rod (91) of the stop valve (9), a plugging disc (93) is mounted at the lower end of the adapter (92), a first sealing gasket (931) corresponding to the periphery of an upper port of the pressure regulator (4) is embedded in the lower side surface of the plugging disc (93), and a stepped hole is formed in the plugging disc (93) along the axis; the lower end of the adaptor (92) is provided with a conical head (921) and extends into a stepped hole of the plugging disc (93), a lock ring (933) of a check ring (932) is installed in the stepped hole of the plugging disc (93) on the upper side of the conical head (921), an extrusion spring (94) sleeved on the adaptor (92) is arranged between the check ring (932) and the conical head (921), and a second sealing gasket (934) is installed in the stepped hole of the plugging disc (93) on the lower side of the conical head (921); an assisting spring (95) sleeved around the valve rod (91) is further arranged between the valve body of the cut-off valve (9) and the adaptor (92), and a spring stabilizing pipe (96) is sleeved between the assisting spring (95) and the valve rod (91).
9. A buried pressure regulating device according to any one of claims 1 to 8, characterized in that a pressure gauge and a differential pressure transmitter are arranged on the blind plate (5), a bleeding valve is arranged on the upper sealing plate (13), the bleeding valve is connected with the air outlet pipe joint (12) through a bleeding pipe, and a protective box is hermetically fixed on the upper sealing plate (13).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010277238.4A CN111692532B (en) | 2020-04-10 | 2020-04-10 | Buried voltage regulating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010277238.4A CN111692532B (en) | 2020-04-10 | 2020-04-10 | Buried voltage regulating device |
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| Publication Number | Publication Date |
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| CN111692532A true CN111692532A (en) | 2020-09-22 |
| CN111692532B CN111692532B (en) | 2021-05-11 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010277238.4A Active CN111692532B (en) | 2020-04-10 | 2020-04-10 | Buried voltage regulating device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114060726A (en) * | 2021-11-16 | 2022-02-18 | 浙江苍南仪表集团东星能源科技有限公司 | Gas pressure regulating system |
| CN114151733A (en) * | 2021-11-16 | 2022-03-08 | 瑞星久宇燃气设备（成都）有限公司 | Direct-buried underground pressure regulating box |
| CN114396568A (en) * | 2021-12-31 | 2022-04-26 | 北京市燃气集团有限责任公司 | Internal-pressure buried pressure regulating device |
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| CN114396568A (en) * | 2021-12-31 | 2022-04-26 | 北京市燃气集团有限责任公司 | Internal-pressure buried pressure regulating device |
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|---|---|
| CN111692532B (en) | 2021-05-11 |
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Denomination of invention: A buried pressure regulating device Granted publication date: 20210511 Pledgee: China Zheshang Bank Co.,Ltd. Changzhou Branch Pledgor: Jiangsu Shengwei Gas Technology Co.,Ltd. Registration number: Y2024980002408 |