CN217482540U - Composite cylinder type single-way intelligent underground gas pressure regulating device - Google Patents

Abstract

The application relates to a composite barrel type single-way intelligent underground gas pressure regulating device, which comprises a pressure regulating pipeline, a lower box body, an integrated pressure regulating part, a diffusing component and an upper box body, wherein the lower box body comprises a main barrel body, an auxiliary barrel body, an upper top plate, a lower bottom plate and a supporting plate, the side wall of the lower box body is provided with an inlet pipeline, the upper part of the main barrel body is open, one side of the main barrel body is communicated with the inlet pipeline, the auxiliary barrel body is coated and arranged at the bottom and one side of the main barrel body, the supporting plate is arranged at the bottom of the main barrel body, the main barrel body and the auxiliary barrel body are communicated through a communicating hole, the upper top plate covers the main barrel body and the auxiliary barrel body, the lower bottom plate is hermetically connected with the bottom of the auxiliary barrel body, the integrated pressure regulating part is arranged on the upper top plate and comprises an integrated pressure regulating core main regulating component, the integrated pressure regulating core main regulating component is hermetically arranged at a pressure regulating core mounting hole, the lower end of the main barrel body extends to the diffusing component is arranged beside the integrated pressure regulating core, the diffusing component is communicated with an outlet pipeline, the upper box body is arranged above the lower box body, the cover is arranged on the outer side of the integrated pressure regulating part and the diffusing component, and the upper part of the upper box body is provided with an upper cover which can be opened and closed.

Description

Composite cylinder type single-way intelligent underground gas pressure regulating device

Technical Field

The application relates to the technical field of gas transmission and distribution, in particular to a composite cylinder type single-path intelligent underground gas pressure regulating device.

Background

With the development of economic society, fuel gas is widely applied in a large quantity, and then the fuel gas is widely applied as a necessary fuel gas pressure regulating box in a fuel gas transmission and distribution system. The traditional overground pressure regulating box adopts a pipeline flange connection structure, occupies a large overground space and has a large requirement on safety spacing. In the design and site selection of the pressure regulating box, the requirements of safety distance and site selection in a construction red line are met, and on the current urban construction land with the precious soil, the areas meeting the requirements are few and few, the site selection difficulty is high, so the gas underground pressure regulating box with low requirements of safety distance is produced at present.

In the practical use of the underground pressure regulating box, the integrated gas underground pressure regulating box which can bear load, is waterproof and sealed, occupies small space, is designed in an integrated manner, is convenient to maintain and repair, is more and more approved by the majority of users and relevant management units, and represents the development direction of the underground pressure regulating box. When the underground gas pressure regulating box is used, the underground gas pressure regulating box is mostly directly buried underground, soil can be in direct contact with the side wall of the pressure-bearing box body, the underground gas pressure regulating box is corroded, and therefore the underground gas pressure regulating box is externally provided with the shell, and the underground gas pressure regulating box is prevented from being in direct contact with the pressure regulating box. The gas underground pressure regulating box is generally internally provided with a high-pressure cavity and a low-pressure cavity, and the structure and the processing of a gas underground pressure regulating box shell box body can be influenced by the difference of the setting modes of the high-pressure cavity and the low-pressure cavity, so that the high-pressure cavity and the low-pressure cavity need to be reasonably distributed.

SUMMERY OF THE UTILITY MODEL

In view of the above, the application provides a composite cylinder type single-path intelligent underground fuel gas pressure regulating device, which comprises a pressure regulating pipeline, a lower box body, an integrated pressure regulating part, a diffusing component and an upper box body; the lower box body comprises a main cylinder body, an auxiliary cylinder body, an upper top plate, a lower bottom plate and a supporting plate, and the side wall of the lower box body is provided with an inlet pipeline which is suitable for being connected with a fuel gas input pipeline; the upper part of the main cylinder body is open, and one side of the main cylinder body is communicated with an inlet pipeline; the auxiliary cylinder body is arranged at the bottom and one side of the main cylinder body in a wrapping mode; the support plate is arranged at the bottom of the main cylinder body, a communication hole is formed in the support plate, and the main cylinder body is vertically communicated with the auxiliary cylinder body through the communication hole; the upper top plate is covered above the main cylinder and the auxiliary cylinder, and pressure regulating core mounting holes are formed in corresponding positions; the lower bottom plate is connected with the bottom of the auxiliary cylinder body in a sealing way; the integrated pressure regulating part is arranged on the upper top plate and comprises an integrated pressure regulating core main regulating component, the integrated pressure regulating core main regulating component is hermetically arranged at the pressure regulating core mounting hole, and the lower end of the integrated pressure regulating core main regulating component extends into the main cylinder; the diffusing component is arranged beside the integrated pressure regulating core and communicated with the outlet pipeline through a diffusing connecting pipe; the upper box body is positioned above the lower box body, the integrated pressure regulating portion and the outer side of the diffusing assembly are covered, and the upper portion of the upper box body is provided with an upper cover which can be opened and closed.

In a possible implementation manner, the main cylinder is a cylinder, the auxiliary cylinder located at the bottom of the main cylinder is a hollow cylinder, the auxiliary cylinder located at one side of the main cylinder is a hollow cylinder, and the top of the auxiliary cylinder is arranged at the same height as the main cylinder and is smaller than and connected with the outlet pipeline.

In a possible implementation manner, the auxiliary cylinder on one side of the main cylinder is a cylinder structure which is partially cut along the longitudinal direction and has a diameter smaller than that of the main cylinder.

In a possible implementation manner, the integrated pressure regulating part further comprises a cutting flange, a cutting drive, a pressure regulator director, an inlet pressure gauge, an outlet pressure gauge and a differential pressure gauge; the cutting flange is installed on the upper top plate, and the integrated pressure regulating core main regulating assembly is fixed to the cutting flange through screw connection and is fixed to the upper top plate; the cutting-off drive is provided with a drive sealing disc capable of pressing a valve port of the pressure regulating core main regulating assembly and is arranged beside the pressure regulating core main regulating assembly; the pressure regulator director is arranged on the upper top plate, is communicated with the integrated pressure regulating core main regulating assembly and is used for driving the integrated pressure regulating core main regulating assembly to work through gas; the inlet pressure gauge, the outlet pressure gauge and the differential pressure gauge are arranged on the cutting flange and are arranged around the cutting drive in a surrounding mode; the inlet pressure gauge is communicated to the inlet pipeline; the outlet pressure gauge is communicated to the outlet pipeline; and a high pressure taking port and a low pressure taking port of the differential pressure gauge are respectively bridged on the inner side and the outer side of the filter element in the integrated pressure regulating core.

In one possible implementation, the bleeding component comprises a bleeding valve and a bleeding connecting pipe;

the bleeding valve is arranged on the upper top plate and communicated with the low-pressure chamber in the auxiliary cylinder body;

the upper box body is provided with a dispersion opening;

the diffusion valve is communicated to the diffusion port through the diffusion connecting pipe.

In a possible implementation manner, the upper box body further comprises a window frame, a window plate and a window sealing strip; the window plate is made of transparent materials; the window frame is erected and fixed on the inner top of the upper box body and is positioned on the lower side of the upper cover; the window sealing strip is attached between the window plate and the window frame.

In a possible implementation manner, the device further comprises a rib plate; the rib plate is fixed on the outer side of the joint of the main cylinder and the inlet pipeline, and an inlet valve is installed on the inlet pipeline part; the rib plates are fixed on the outer side of the joint of the auxiliary cylinder and the outlet pipeline, and the outlet pipeline is partially provided with an outlet valve.

In a possible implementation mode, the pressure regulator director is arranged on the upper top plate and communicated with the integrated pressure regulating core main regulating assembly to drive the integrated pressure regulating core main regulating assembly to work through gas.

In a possible implementation manner, a sealing gasket is padded at the connecting edge of the upper box body and the lower box body; a breathing port is formed in the side wall of the upper box body; the upper cover is provided with a rib plate frame, and handles are arranged on the opposite sides of the openable cover hinge.

In a possible implementation manner, the breathing port on the side wall of the upper box body is of a three-way structure, wherein one end of the breathing port is provided with a breathing connecting seat, and the other end of the breathing port is communicated to a breathing pipe in the emptying pipe through a hose; the breathing connecting seat is communicated to the cut-off drive and the pressure regulator director through a breathing air pipe respectively.

The beneficial effect of this application: the main cylinder body is separated from the auxiliary cylinder body coated at the bottom and one side of the main cylinder body through the supporting plate, the main cylinder body is communicated with the auxiliary cylinder body through the communicating holes, namely, the high-pressure chamber of the main cylinder body is communicated with the low-pressure chamber of the auxiliary cylinder body, the layout mode of an upper structure and a lower structure is adopted, the supporting plate provided with the communicating holes is only needed to be added between the main cylinder body and the auxiliary cylinder body to achieve a better sealing effect, one side of the main cylinder body, which is not provided with the auxiliary cylinder body, can be co-walled with the auxiliary cylinder body, the cylinder body structure is optimized, the processing is convenient, the installation difficulty of practitioners in the field is effectively reduced, and the structure of the auxiliary cylinder body can be flexibly changed according to the main cylinder body.

Other features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the description, serve to explain the principles of the application.

Fig. 1 shows a side cross-sectional view of a composite barrel type single-pass intelligent underground gas pressure regulating device according to an embodiment of the present application;

fig. 2 shows a top view of a composite barrel type single-channel intelligent underground gas pressure regulating device (with an open upper cover) according to an embodiment of the present application;

FIG. 3 illustrates a partial enlarged view of a lower housing according to an embodiment of the present application.

Detailed Description

Various exemplary embodiments, features and aspects of the present application will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

It will be understood, however, that the terms "central," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in an orientation or positional relationship indicated in the drawings for convenience in describing the present application or for simplicity of description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present application.

Fig. 1 shows a side cross-sectional view of a composite barrel type single-pass intelligent underground gas pressure regulating device according to an embodiment of the present application; fig. 2 shows a top view of a composite cylinder type single-path intelligent underground gas pressure regulating device (with an open upper cover) according to an embodiment of the present application; FIG. 3 illustrates a partial enlarged view of a lower housing according to an embodiment of the present application.

As shown in fig. 1-3, the composite cylinder type single-path intelligent underground gas pressure regulating device comprises: the integrated pressure regulating part 21 is arranged on the upper top plate 22, the integrated pressure regulating core main regulating component 2 (only the position of the integrated pressure regulating part 21 is shown in the figure, the position can be directly used by the prior art), the structure is not shown), the integrated pressure regulating core main regulating component 2 is hermetically arranged at the position of the pressure regulating core mounting hole, the lower end of the integrated pressure regulating core main regulating component extends into the main cylinder body 60, the diffusing component is arranged at the side of the integrated pressure regulating core, the diffusing component is communicated with the outlet pipeline 24 through the diffusing connecting pipe 40, the upper box body 6 is positioned above the lower box body 1, the integrated pressure regulating part 21 and the diffusing component are covered outside, and the upper part of the upper box body 6 is provided with the upper cover 13 which can be opened and closed.

In this embodiment, the main cylinder 60 and the sub-cylinder 61 covering the bottom and one side of the main cylinder are separated by the support plate 63, and the main cylinder 60 and the sub-cylinder 61 are communicated with each other by the communication hole 64, that is, the high pressure chamber of the main cylinder 60 is communicated with the low pressure chamber of the sub-cylinder 61, a layout manner of an up-and-down structure is adopted, a better sealing effect can be achieved only by adding the support plate 63 provided with the communication hole 64 between the main cylinder 60 and the sub-cylinder 61, and the side of the main cylinder 60 not provided with the sub-cylinder 61 can be co-walled with the sub-cylinder 61, so that the cylinder structure is optimized, the processing is convenient, the installation difficulty of an operator in the field is effectively reduced, and the structure of the sub-cylinder 61 can be flexibly changed according to the main cylinder 60.

In one embodiment, the main cylinder 60 is a cylindrical cylinder, the sub-cylinder 61 at the bottom of the main cylinder 60 is a hollow cylinder, the sub-cylinder 61 at one side of the main cylinder 60 is a hollow cylinder, and the top of the sub-cylinder is disposed at the same height as the main cylinder 60, smaller than and connected to the outlet pipe 24.

In one embodiment, the sub-cylinder 61 on one side of the main cylinder 60 is a cylindrical structure partially cut in a longitudinal direction and has a diameter smaller than that of the main cylinder 60.

In one embodiment, the integrated pressure regulating portion 21 further comprises a cutting flange 57, a cutting drive 39, a pressure regulator director 48, an inlet pressure gauge 33, an outlet pressure gauge 31 and a differential pressure gauge 35, the cutting flange 57 is mounted on the upper top plate 22, the integrated pressure regulating core main regulating assembly 2 is fixed to the upper top plate 22 through a screw joint to the cutting flange 57, the cutting drive 39 is provided with a drive seal disc capable of pressing a valve port of the pressure regulating core main regulating assembly and is arranged at the side of the pressure regulating core main regulating assembly 2, the pressure regulator director 48 is mounted on the upper top plate 22 and is communicated with the integrated pressure regulating core main regulating assembly 2 for driving the integrated pressure regulating core main regulating assembly 2 to work through gas, the inlet pressure gauge 33, the outlet pressure gauge 31 and the differential pressure gauge 35 are mounted on the cutting flange 57 and are arranged around the cutting drive 39, wherein the inlet pressure gauge 33 is communicated to the inlet pipeline 3, the outlet pressure gauge 31 is communicated to the outlet pipeline 24, and a high pressure taking port and a low pressure taking port of the differential pressure gauge 35 are respectively bridged on the inner side and the outer side of the filter element in the integrated pressure regulating part 21.

In one embodiment, the bleed assembly includes a bleed valve 44 and a bleed connection 40; the blow-off valve 44 is mounted on the upper top plate 22 and communicated with the low-pressure chamber in the auxiliary cylinder body 61; the upper tank 6 is provided with a bleeding port 37, and a bleeding valve 44 is connected to the bleeding port 37 through a bleeding connecting pipe 40.

In one embodiment, the upper box 6 further includes a window frame 18, a window plate 20 and a window sealing strip 19, the window plate 20 is made of a transparent material, the window frame 18 mounts the fixed window plate 20 on the top of the upper box 6 and is located on the lower side of the upper cover 13, and the window sealing strip 19 is attached between the window plate 20 and the window frame 18.

In one specific embodiment, the device further comprises rib plates 8 and 25, the rib plates 8 and 25 are fixed on the outer side of the joint of the main cylinder 60 and the inlet pipeline 3, the inlet valve 4 is installed on part of the inlet pipeline 3, the rib plates 8 and 25 are fixed on the outer side of the joint of the auxiliary cylinder 61 and the outlet pipeline 24, and the outlet valve 23 is installed on part of the outlet pipeline 24.

In one embodiment, the regulator director 48 is disposed on the top plate 22 and is in communication with the integrated pressure regulating core main control assembly for driving the integrated pressure regulating core main control assembly to operate by combustion gas.

In one embodiment, a sealing pad is padded at the connecting edge of the upper box body 6 and the lower box body 1, a breathing opening 59 is formed in the side wall of the upper box body 6, a rib plate frame 15 is arranged on the upper cover 13, and a handle is arranged on the opposite side capable of opening and closing the hinge of the upper cover 13.

In one embodiment, the breathing port 59 on the sidewall of the upper box 6 is a three-way structure, wherein one end is installed with a breathing connecting base, and the other end is connected to a breathing tube in the emptying tube through a hose, wherein the breathing connecting base is respectively connected to the cut-off driver 39 and the pressure regulator director 48 through the breathing tube 30.

The underground pressure regulating box body comprises an upper box body 6, a lower box body 1, internal equipment and the like. The upper and lower box bodies 1 are made of steel materials, and the surfaces of the upper and lower box bodies are subjected to corrosion prevention treatment.

The upper box body 6 is an installation and operation space of instrument equipment and is installed and integrated with the connecting plate of the lower box body 1 through bolts. A sealing gasket is clamped between the connecting plates of the upper box body 6 and the lower box body 1 to achieve the sealing and waterproof functions.

A window plate 20 is installed in the upper case 6. The window plate 20 is made of colorless transparent light high-strength material and is embedded with a window sealing strip 19. The window board 20 can be conveniently fastened on the upper box body 6 through a compression wrench, so that the dustproof and leakproof functions are realized.

The top of the upper box body 6 is provided with an openable upper cover 13. The middle part of the upper cover 13 is reinforced by rib plates 8 and 25, and the periphery of the upper cover is provided with a sealing strip at the contact part with the upper edge of the upper box body 6. After the upper cover 13 is closed, the upper cover 13 can be fixed and the sealing strip can be pressed tightly through the non-standard bolt, so that the functions of locking, water resistance and leakage prevention are realized.

The upper cover 13 is provided with a hidden handle, which is convenient for operation and beautiful.

A pneumatic spring is arranged between the upper box body 6 and the upper cover 13, so that the upper cover 13 is convenient to lift, the upper cover 13 can be prevented from falling back during maintenance, and the safety of operators is ensured.

Go up the box 6 and be equipped with the box frame all around, the frame meets with the road surface is the same level when the pressure regulating box is installed on the road surface condition, and protection upper cover 13 is not blocked by road surface ceramic tile etc. and stagnates, and the box frame is equipped with the outlet simultaneously, avoids the box frame to deposit water.

The periphery of the upper box body 6 is provided with a breathing interface, a diffusing interface and a reserved interface which can be arranged more than needed.

The lower box body 1 is formed by welding an inlet valve 4, a pressure-bearing box body and an outlet valve 23, and the pressure-bearing box body is provided with an integrated pressure regulating core, a bleeding valve 44 and other components.

The integrated pressure regulating core is provided with a filter element, a cut-off drive 39, a pressure regulator director 48,

The pressure regulator mainly adjusts the subassembly, manometer, differential pressure gauge 35 etc. and constitutes, possesses functions such as filtration, cutting off, pressure regulating, parameter display. The integrated pressure regulating core is provided with a lifting ring 41, so that the integrated pressure regulating core is integrally disassembled and assembled on the ground when being convenient to maintain and repair.

Components such as a cutting-off drive 39 and a pressure regulator director 48 in the integrated pressure regulating core are all designed in a sealing mode, and the breathing holes are led out to the emptying pipe through independent breathing pipes, so that normal operation can be still kept even if the box body is completely immersed in water.

The box body is provided with an inlet and outlet pressure transmitter and a temperature transmitter mounting port, and the pressure transmitter and the temperature transmitter of corresponding types can be mounted so as to adapt to the arrangement of comprehensive instruments of different types.

The pressure regulating box is provided with an emptying pipe and a diffusing pipe, an instrument box and a photovoltaic power supply device are installed on the emptying pipe, the diffusing pipe is connected with a diffusing valve 44, and diffused fuel gas can be diffused to the high altitude to ensure safety when diffused.

The bleeding valve 44 is provided with a bleeding remote transmission device 45, so that the alarm can be remotely transmitted in time after bleeding occurs, the management is convenient, and the alarm can be displayed and uploaded by the comprehensive instrument after the bleeding valve 44 acts and is bled.

The cut-off valve is provided with a cut-off remote transmission device 32, so that the cut-off valve can remotely transmit an alarm and is convenient to manage, and the alarm can be displayed and uploaded on the comprehensive instrument after the action of the cut-off valve is cut off.

The gas from the medium-pressure pipe network enters the pressure-bearing box body of the underground pressure regulating box from the inlet valve, is filtered and regulated by the integrated pressure regulating core, and then flows out of the pressure regulating box through the outlet pipe and the outlet valve to enter the low-pressure pipe network. Regulating the set outlet pressure by a pressure regulator director; when the outlet pressure exceeds the set pressure of the safety relief valve, the safety relief valve automatically relieves, and gas enters the emptying pipe through the metal hose and is dissipated into the atmosphere; when the outlet pressure of the pressure regulating tank exceeds the set pressure of the stop valve, the stop valve acts to close the passage of the pressure regulator.

To sum up, the compound barrel formula one-way intelligence underground gas pressure regulating device of this application still has following advantage:

the utility model provides an underground pressure regulating box is whole arranges the underground in, and only the upper cover exceeds ground a little, so need not to build the required great civil engineering volume of traditional above-ground pressure regulating box, saves area, and has avoided such as shortcoming such as sheltering from the sight, has eliminated by the risk of vehicle striking. The cut-off valve, the filter element and the pressure regulator are integrated in a unified mode, the structure is compact, the size is small, effective utilization of space is achieved, and maintenance is facilitated. The whole body is made into an upper cover-opening type box body, the box body is made of steel materials, and the sealing position is sealed by a sealing gasket, so that the box body can bear load, and is explosion-proof, waterproof and leakage-proof. The transparent window is arranged, and the reading of each instrument and the working condition of equipment can be conveniently observed by opening the upper cover, so that the inspection is convenient; the transparent window and the box body are sealed by adopting a sealing strip, so that the waterproof, dustproof and leakproof effects are ensured. In order to deal with the gas leakage caused by equipment failure and improper installation, an emptying pipe is erected beside the box body and is connected through a metal hose; the emptying pipe is four meters higher than the ground, so that leaked fuel gas can be effectively released into the atmosphere for dilution, the pipe body can be painted green to match with the surrounding green plants, and the upper end of the pipe can be decorated in the shapes of a street lamp or a flagpole and the like to ensure the attractiveness; the box body is arranged underground, and the opening of the upper cover needs to be operated by using a non-standard wrench, so that the difficulty of illegally opening the cover is increased, and meanwhile, the related equipment is prevented from illegally modifying parameters and cutting off gas supply.

More specifically, an upper cover 13 is installed on the upper portion of the upper box body 6, the upper box body and the upper cover are connected through a hinge 12 and are of a single-side opening type, a hidden handle 14 is welded on the opening side, the upper cover can be conveniently lifted, and the appearance is attractive. The periphery of the upper cover 13 is provided with an upper cover sealing frame 12, and the joint of the upper cover 13 and the upper box body 6 is filled by sealing strips when the upper cover is tightly covered, so that the sealing, water-proof and leakage-proof functions are achieved.

The middle part of the upper cover 13 is provided with a rib plate frame 15, so that the rigidity of the upper cover can be improved under the condition of small weight increment, and the bearing capacity can be increased.

An air spring 10 is arranged between the upper cover 13 and the upper box body 6, so that the upper cover can be conveniently opened and fixed, the upper cover is prevented from falling back during inspection and maintenance, and the safety of operators is ensured.

The upper cover 13 is provided with a lock sleeve 11, the upper box body 6 is provided with a lock sleeve connecting plate, and the upper cover can be pressed, fixed and sealed through bolts. The screw plug is installed at the corresponding position of the upper cover lock sleeve, so that dust and muddy water are prevented from entering the inside of the lock sleeve mechanism to influence the operation.

The nameplate 16 can be installed in the upper cover 13, the outer frame 9 is arranged on the periphery of the box body of the upper cover 13, and when the pressure regulating box is located on a paved road surface, the periphery of the upper cover can be protected from being extruded by the road surface to influence the cover opening. The outer frame 9 is provided with a water drainage hole to avoid water accumulation around the upper cover.

A window plate 20 is installed in the upper case 6. The window plate 20 is composed of a window frame 18, a window sealing strip 19 and a window plate 20. A window plate 20 is arranged in the window frame 18, and a window sealing strip 19 is embedded around the window frame. The window panel 20 is made of a light, colorless, transparent, and high-strength material. The window is integrally fixed in the upper box body 6 by the compression wrench 7, an interlayer is formed for internal equipment, water and dust can be prevented from entering a lower space, and meanwhile, leaked fuel gas can be prevented from entering spaces in the window and the upper cover. The window plate 20 and the upper cover 13 form two seals, and the safety is improved.

The periphery of the upper box body 6 is provided with a breathing port 59, a bleeding port 37, a reserved port I42 and a reserved port II 51 which can be respectively used for installing a breathing component, an outlet connecting pipe of a bleeding valve, a remote transmission signal pipe 56 or a signal wire and the like.

Breathing port 59 internally mounted has the tee bend, and one end installation check valve 58 can ensure that the gas can in time get into the blow-down pipe that exceeds ground four meters through breather valve and the metal collapsible tube that links to each other and dissipate to the atmosphere when internal plant takes place the gas and leaks. The installation of the breather valve eliminates the hidden danger of gas ejection when the upper cover is opened during inspection, maintenance and the gas pressure borne by the window and the upper cover due to internal gas leakage; adopt the breather valve can make the gas that leaks flow out the box and outside humid air can't flow in, avoid forming air gas mixture, reduced potential explosion hazard, also avoided the equipment corrosion that inside air humidity caused simultaneously.

The other end of the tee joint in the breathing port 59 is provided with a breathing connecting seat 27. 27 breathing connecting seat one end will cut off drive 39 and pressure regulator director 48's breathing hole through breathing trachea 9 and couple together, and the other end is connected independent hose and is connected to the breathing pipe in the blow-down pipe, makes equipment breathing pipeline independently draw forth the box, even the inside complete water logging of box, but equipment normal operating still.

The upper box body 6 and the lower box body 1 are fixedly connected through a fastening bolt component 53, and a box body sealing frame 55 is clamped 5 at the joint to achieve the sealing and waterproof functions.

The lower box body 1 mainly comprises an inlet valve 4, an inlet pipeline 3, an outlet pipeline 23, an outlet valve 24, an upper top plate 22 and a pressure-bearing box body (a main cylinder body 60 and an auxiliary cylinder body 61). The pressure-bearing box body is formed by welding bent steel plates and is divided into a high-pressure chamber and a low-pressure chamber of an auxiliary cylinder body 61 in a main cylinder body 60, and the high-pressure chamber accommodates the integrated pressure regulating core main regulating assembly 2. Ribs 8 and 25 are arranged on the inlet pipe and the outlet pipe of the lower box body 1, so that the overall strength is improved, and the risk that the welding line is broken due to the fact that the welding pipe network is settled and the tensile force between the inlet pipe and the outlet pipe and the welding line of the box body is increased is avoided.

The upper bottom plate 5 is provided with a first high-pressure preformed hole 28 and a second high-pressure preformed hole 52 which are connected with a lower high-pressure chamber and can be connected with a pressure and temperature transmitter to detect the pressure and temperature of an inlet; and a first low-pressure reserved hole 46 and a second low-pressure reserved hole 47 are arranged, and a pressure and temperature transmitter can be connected to detect the pressure and the temperature of the outlet.

The integrated pressure regulating part 21 comprises a cutting flange 57, a pressure regulator director 48, a cutting drive 39, an inlet pressure gauge 33, an outlet pressure gauge 31, a differential pressure gauge 35, an integrated pressure regulating core main regulating assembly 2 and the like. The integrated pressure regulating part 21 is arranged on the upper top plate 22 through a stud component 34, the integrated pressure regulating part 21 is sealed with the upper top plate 22 through a sealing ring, and is sealed with a mounting base in the pressure bearing cylinder through a sealing gasket. The cutting flange 57 is provided with a hanging ring 41, so that the integrated pressure regulating part 21 can be integrally hoisted, and the maintenance is convenient.

The integrated pressure regulating part 21 adopts a director acting type pressure regulator, and consists of a pressure regulator director 48 and a pressure regulator main regulator of the integrated pressure regulating core main regulator component 2, and the pressure regulator has the advantages of large flow range, sensitive pressure regulation and quick response.

And 39, a cutting-off driving settable cutting-off pressure value is cut off, when the outlet pressure value exceeds the cutting-off pressure value, the cutting-off driving acts, a cutting-off driving sealing disc is tightly pressed on a valve port of the integrated pressure regulating core main regulating assembly 2, and the gas supply is interrupted, so that subsequent gas equipment is protected. The front end of the pressure taking port connecting pipe of the cut-off drive 39 is provided with a cut-off root valve 49, so that the error cut-off caused by overlarge outlet pressure fluctuation when the device is put into use is avoided, and the field operation is facilitated.

The cutting drive 39 is provided with a cutting remote transmission 32, and the cutting drive 39 can alarm and remotely transmit the cutting state through the comprehensive instrument in time after the action is cut.

The high and low pressure taking ports of the differential pressure gauge 35 are bridged on the outer side and the inner side of the filter element in the integrated pressure regulating part 21, when the filter element is blocked, pressure drop is generated on the two sides of the filter element, and the differential pressure gauge 35 displays reading. The cleaning degree of the filter element can be judged through the reading so as to replace the filter element in time.

The cutting flange 54 is provided with a high-pressure reserved opening, and a plug 55 is arranged to provide a high-pressure tapping opening when needed.

The integrated pressure regulating part 21 is provided with a high-pressure test port 29, and the pressure tapping tower 51 is provided with a low-pressure test port 50, so that the pressure tapping port can be provided for testing during daily maintenance.

The bleed valve 44 is disposed at a corresponding port on the top plate 22 and is connected to the low pressure chamber, and when the outlet pressure exceeds a bleed set value, the bleed valve 44 begins to bleed, preventing the pressure from rising further to protect the subsequent equipment.

The bleed valve 44 is connected to the bleed port 37 via the bleed connecting tube 40. A three-way valve 38 is provided between the purge connection pipe 40 and the purge port 37. The outlet of the three-way valve is guided to the diffusion port 37 during normal operation, and is guided to the direction of the air pipe joint 36 during the test diffusion state, so that the air pipe can be additionally connected for testing the diffusion state.

Having described embodiments of the present application, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein was chosen in order to best explain the principles of the embodiments, the practical application, or improvements to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims (10)

1. A composite cylinder type single-path intelligent underground gas pressure regulating device is characterized by comprising a pressure regulating pipeline, a lower box body, an integrated pressure regulating part, a diffusing component and an upper box body;

the lower box body comprises a main cylinder body, an auxiliary cylinder body, an upper top plate, a lower bottom plate and a supporting plate, and the side wall of the lower box body is provided with an inlet pipeline which is suitable for being connected with a fuel gas input pipeline;

the upper part of the main cylinder body is open, and one side of the main cylinder body is communicated with an inlet pipeline;

the auxiliary cylinder body is arranged at the bottom and one side of the main cylinder body in a wrapping mode, and the side wall of the auxiliary cylinder body is communicated with the outlet pipeline;

the support plate is arranged at the bottom of the main cylinder body, a communication hole is formed in the support plate, and the main cylinder body and the auxiliary cylinder body are vertically communicated through the communication hole;

the upper top plate is covered above the main cylinder and the auxiliary cylinder, and a pressure regulating core mounting hole is formed in the position corresponding to the main cylinder;

the lower bottom plate is connected with the bottom of the auxiliary cylinder body in a sealing way;

the integrated pressure regulating part is arranged on the upper top plate and comprises an integrated pressure regulating core main regulating component, the integrated pressure regulating core main regulating component is hermetically arranged at the pressure regulating core mounting hole, and the lower end of the integrated pressure regulating core main regulating component extends into the main cylinder;

the diffusing component is arranged beside the integrated pressure regulating part and communicated with the outlet pipeline through a diffusing connecting pipe;

the upper box body is positioned above the lower box body, covers the integrated pressure regulating part and the outer side of the diffusing component, and the upper part of the upper box body is provided with an upper cover which can be opened and closed.

2. The composite cylinder type single-path intelligent underground gas pressure regulating device as claimed in claim 1, wherein the main cylinder is a cylinder, the auxiliary cylinder at the bottom of the main cylinder is a hollow cylinder, the auxiliary cylinder at one side of the main cylinder is a hollow cylinder, and the top of the auxiliary cylinder is arranged at the same height as the main cylinder and is smaller than and connected with the outlet pipeline.

3. The composite cylinder type single-path intelligent underground gas pressure regulating device as claimed in claim 2, wherein the auxiliary cylinder on one side of the main cylinder is a cylinder structure with a part cut along the longitudinal direction, and the diameter of the auxiliary cylinder is smaller than that of the main cylinder.

4. The composite cylinder type single-path intelligent underground gas pressure regulating device according to claim 1, wherein the integrated pressure regulating part further comprises a cutting flange, a cutting drive, a pressure regulator director, an inlet pressure gauge, an outlet pressure gauge and a differential pressure gauge;

the cutting flange is installed on the upper top plate, and the integrated pressure regulating core main regulating assembly is fixed to the cutting flange through screw connection and is fixed to the upper top plate;

the cutting-off drive is provided with a drive sealing disc capable of pressing a valve port of the pressure regulating core main regulating assembly, and the drive sealing disc is arranged beside the pressure regulating core main regulating assembly;

the pressure regulator director is arranged on the upper top plate, is communicated with the integrated pressure regulating core main regulating assembly and is used for driving the integrated pressure regulating core main regulating assembly to work through gas;

the inlet pressure gauge, the outlet pressure gauge and the differential pressure gauge are arranged on the cutting flange and are arranged around the cutting drive in a surrounding mode;

the inlet pressure gauge is communicated to the inlet pipeline;

the outlet pressure gauge is communicated to the outlet pipeline;

and a high pressure taking port and a low pressure taking port of the differential pressure gauge are respectively bridged on the inner side and the outer side of the filter element in the integrated pressure regulating core.

5. The composite cylinder type single-path intelligent underground gas pressure regulating device as claimed in claim 1, wherein the bleeding component comprises a bleeding valve and a bleeding connecting pipe;

the bleeding valve is arranged on the upper top plate and communicated with the low-pressure chamber in the auxiliary cylinder body;

the upper box body is provided with a dispersion opening;

the diffusion valve is communicated to the diffusion port through the diffusion connecting pipe.

6. The composite barrel type single-channel intelligent underground gas pressure regulating device according to claim 1, wherein the upper box body further comprises a window frame, a window plate and a window sealing strip;

the window plate is made of transparent materials;

the window frame is erected and fixed on the inner top of the upper box body and is positioned at the lower side of the upper cover;

the window sealing strip is attached between the window plate and the window frame.

7. The composite barrel type single-path intelligent underground gas pressure regulating device according to claim 1, further comprising a rib plate;

the rib plate is fixed on the outer side of the joint of the main cylinder and the inlet pipeline, and an inlet valve is installed on the inlet pipeline part;

the rib plates are fixed on the outer side of the joint of the auxiliary cylinder and the outlet pipeline, and the outlet pipeline is partially provided with an outlet valve.

8. The composite cylinder type single-channel intelligent underground gas pressure regulating device as claimed in claim 1, wherein a pressure regulator director is arranged on the upper top plate and communicated with the integrated pressure regulating core main regulating assembly so as to drive the integrated pressure regulating core main regulating assembly to work through gas.

9. The composite barrel type single-path intelligent underground gas pressure regulating device according to claim 1, wherein a sealing gasket is arranged at the connecting edge of the upper box body and the lower box body in a cushioning manner;

a breathing port is formed in the side wall of the upper box body;

the upper cover is provided with a rib plate frame, and handles are arranged on the opposite sides of the openable cover hinge.

10. The composite barrel type single-path intelligent underground gas pressure regulating device as claimed in claim 4, wherein the breathing port on the side wall of the upper box body is of a three-way structure, wherein one end is provided with a breathing connecting seat, and the other end is communicated to a breathing pipe in the emptying pipe through a hose;

the breathing connecting seat is communicated to the cut-off drive and the pressure regulator director through a breathing air pipe respectively.

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