CN217815199U - Axial-flow type gas pressure regulator - Google Patents
Axial-flow type gas pressure regulator Download PDFInfo
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- CN217815199U CN217815199U CN202221720989.XU CN202221720989U CN217815199U CN 217815199 U CN217815199 U CN 217815199U CN 202221720989 U CN202221720989 U CN 202221720989U CN 217815199 U CN217815199 U CN 217815199U
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Abstract
The utility model provides an axial-flow gas pressure regulator, which comprises a front valve body, a rear valve body and a diaphragm arranged between the front valve body and the rear valve body through a tray; a valve rod is arranged in the valve cavity of the front valve body and penetrates through the valve port of the front valve body; the periphery of one end of the valve rod, which is positioned on the left side of the valve port, is provided with a valve port pad, and one end of the valve rod, which is positioned on the right side of the valve port, is provided with a sleeve; a guide cylinder is arranged in the valve cavity of the rear valve body, one end of the guide cylinder penetrates through the tray and is fixedly inserted in the sleeve, and a balance structure is arranged at the insertion position; the other end of the guide cylinder is connected with an outlet of the rear valve body; airflow windows are arranged at the joints of the valve rod and the guide cylinder; the periphery side of the guide cylinder is also sleeved with a pressure regulating spring. The gas circuit flow channel of the axial-flow type gas pressure regulator is axial, the gas circuit structure is clear, the gas flow quantity is large, the arrangement of the balance structure is used, the full balance of the air pressure inside the pressure regulator is realized, and the influence of the change of an upstream air source on the closing pressure is effectively reduced.
Description
Technical Field
The utility model relates to a gas pressure regulating equipment technical field among the gas transmission and distribution system, concretely relates to axial-flow type gas pressure regulator.
Background
With the diversification of natural gas application requirements of cities in China, the great change of the terminal natural gas supply structure is caused by more and more factors such as gas supply of high-rise houses and gas appliances with large gas consumption in the houses.
For the air supply of a high-rise residence, the traditional centralized air supply mode easily causes the air pressure difference value between a low floor and a high floor to be larger, and the air supply experience of a user can not be influenced by uniform adaptation. For users who have large gas consumption gas appliances such as floor heating, wall-mounted furnaces, gas air conditioners and the like in houses, centralized gas supply is easy to cause insufficient gas supply during gas consumption peak. To solve such problems, the air supply mode of medium-pressure household plus meter-front pressure regulation has become a new supply structure in developed areas of china.
Under the new supply structure, the pressure of the gas entering the house needs to be increased, and a meter front pressure regulator is additionally arranged in front of a gas meter of each house for secondary pressure regulation so as to ensure the gas supply quantity and the gas supply stability of each house. The prior art gauge-front voltage regulator has the defects that: (1) The gas supply flow is small-the prior meter-front pressure regulator is a cut-off valve body structure, mostly has a lever-type unbalanced structure, and because of the unbalanced characteristic of components in the valve, in order to reduce the unbalanced force caused by the pressure difference, the size of the valve port is reduced as much as possible, so that the gas supply flow is small and the gas supply device cannot meet the requirements of residences provided with large-gas-consumption gas appliances; (2) When the front pressure of the meter pressure regulator with the closing pressure higher-unbalanced structure fluctuates, the closing pressure is very high to cause overpressure, and the gas safety is influenced.
In order to solve the defects of the prior meter-front pressure regulator, an axial-flow gas pressure regulator is researched and developed, and the axial-flow gas pressure regulator has great practical value and practical significance.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an axial-flow type gas pressure regulator through axial-flow type structure, obtains bigger gas circulation and better pressure balance nature, reduces the influence of system's pressure fluctuation.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
an axial-flow type gas pressure regulator comprises a front valve body, a rear valve body and a diaphragm arranged between the front valve body and the rear valve body through a tray;
a valve rod is arranged in a valve cavity of the front valve body and penetrates through the valve port of the front valve body; the periphery of one end of the valve rod, which is positioned on the left side of the valve port, is provided with a valve port pad, and one end of the valve rod, which is positioned on the right side of the valve port, is provided with a sleeve;
a guide cylinder is arranged in a valve cavity of the rear valve body, one end of the guide cylinder penetrates through the tray and is fixedly inserted into the sleeve, and a balance structure is arranged at the insertion position; the other end of the guide cylinder is connected with an outlet of the rear valve body;
airflow windows are arranged at the joints of the valve rod and the guide cylinder;
and a pressure regulating spring is sleeved on the peripheral side of the guide cylinder.
Optionally, one end of the pressure regulating spring is fixedly connected to the tray, and the other end of the pressure regulating spring is fixedly connected to the outlet of the rear valve body.
Optionally, an adjusting ring is further fixed on the outer peripheral side of the outlet of the rear valve body, which is located at one end of the valve cavity, and the pressure regulating spring is fixedly connected to the adjusting ring.
Optionally, the guide cylinder includes a first guide part, a window and a second guide part from left to right, the window is in an inverted cone frustum shape, a short diameter end of the window is connected with the first guide part, and a long diameter end of the window is connected with the second guide part; the first guide part is inserted in the sleeve in a sliding mode, the window is arranged in the middle of the tray and separated from the tray, and the second guide part is fixedly arranged between the tray and the outlet of the rear valve body.
Optionally, a sealing ring is arranged on a connecting surface of the first guide cylinder and the sleeve; and sealing rings are also arranged on the connecting surfaces of the second guide cylinder, the tray and the outlet of the rear valve body.
Optionally, the balancing structure includes:
the balance cavity is arranged between the left end surface of the first guide part and the bottom surface of the sleeve;
the channel is horizontally arranged in the valve rod in a penetrating manner;
a passage in the valve stem communicates the inlet of the front valve body with the balance chamber.
Optionally, the diameter of the bottom surface of the sleeve corresponds to the diameter of the valve port gasket.
Compared with the prior art, the beneficial effects of the utility model are embodied in:
1. the utility model discloses an axial-flow type gas pressure regulator wholly adopts axial-flow type structure, and during the use, the upper reaches middling pressure comes gas to reduce and get into the valve pocket of preceding valve body through valve port clearance back atmospheric pressure inside, and the air current main part passes through the valve pocket inside the window of valve rod and guide cylinder leads to the back valve body, supplies to downstream by back valve body exit at last. In the process, when gas is in the front valve body, the gas can reach the left side of the membrane through a gap between the front valve body and the valve rod, the air pressure can generate right thrust to the membrane, the right side of the membrane is subjected to the left thrust of the pressure regulating spring, the thrusts on the two sides of the membrane are resisted, and when the air pressure thrust is greater than the thrust of the pressure regulating spring, the membrane drives the valve rod to move rightwards, so that the valve port pad moves rightwards, and the pressure regulator tends to be closed; when the air pressure thrust is smaller than the pressure regulating spring thrust, the membrane drives the valve rod to move leftwards, so that the valve port pad moves leftwards, and the pressure regulator tends to be opened. The opening of the valve port is timely adjusted by sensing the adjusted air pressure value behind the valve port in real time, so that the adjustment of the air pressure and the control of the supply amount are realized. The axial-flow type gas pressure regulator has the advantages of compact integral structure and clear gas path structure, and compared with the existing stop valve body, the axial-flow type gas pressure regulator has larger gas flux.
2. The utility model discloses an axial-flow type gas pressure regulator has set up the passageway in the valve rod, has set up balanced chamber between the first guide part of valve rod sleeve and guide cylinder, during the use, upstream atmospheric pressure introduces the balanced chamber that forms between valve rod sleeve and the guide cylinder through built-in passageway, in balanced chamber, atmospheric pressure produces the thrust to the left to the bottom surface of valve rod sleeve, and the valve port pad receives the thrust to the right side to the upstream air supply simultaneously, and these two thrust directions are opposite, and the lifting surface area is equivalent, therefore two thrust offsets each other, form the balance; the balance structure effectively reduces the influence of system pressure fluctuation and avoids overpressure hidden danger caused by high closing pressure.
3. The utility model discloses an axial-flow type gas pressure regulator, through axial-flow type structural design and internal balance structural design, when using, the diaphragm makes the pressure regulator inside be in dynamic balance state always with the structural function in balanced chamber to realize the inside atmospheric pressure total balance of pressure regulator, effectively reduced the influence of upstream air supply change to closing pressure.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a schematic view of the gas path flow passage in use of the present invention.
Fig. 3 is a schematic diagram of the gas path flow channel of the balance structure of the present invention.
Fig. 4 is the internal movement structure diagram of the valve port when the valve port is fully opened in the use of the utility model.
Fig. 5 is a schematic view of the internal movement structure of the valve port when the valve port is closed in use.
Reference numerals:
1-a front valve body; 2-a rear valve body; 3-a tray; 4-a membrane;
5-valve stem, 51-channel;
6-valve port; 7-valve port gasket;
8-sleeve, 81-balance chamber;
9-guide cylinder, 91-first guide, 92-window, 93-second guide;
10-a pressure regulating spring; 11-an adjusting ring; 12-sealing ring.
Detailed Description
In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
As shown in fig. 1 to 5, the axial flow type gas pressure regulator disclosed in this embodiment includes a front valve body 1, a rear valve body 2, and a diaphragm 4 disposed between the front valve body 1 and the rear valve body 2 through a tray 3; a valve rod 5 is arranged in a valve cavity of the front valve body 1, and the valve rod 5 penetrates through a valve port 6 of the front valve body 1; a valve port pad 7 is arranged on the periphery of one end of the valve rod 5 positioned on the left side of the valve port 6, and a sleeve 8 is arranged on one end positioned on the right side of the valve port 6; a guide cylinder 9 is arranged in the valve cavity of the rear valve body 2, one end of the guide cylinder 9 penetrates through the tray 3 and is fixedly inserted in the sleeve 8, and the other end of the guide cylinder 9 is connected with an outlet of the rear valve body 2; airflow windows are arranged at the joints of the valve rod 5 and the guide cylinder 9; the outer periphery of the guide cylinder 9 is also sleeved with a pressure regulating spring 10.
When the valve is used, the upstream medium-pressure incoming gas is reduced in pressure after passing through the gap of the valve port 6 and enters the valve cavity of the front valve body 1, the main gas flow body is led to the inside of the valve cavity of the rear valve body 2 through the gas flow windows of the valve rod 5 and the guide cylinder 8, and finally, the main gas flow is supplied to the downstream from the outlet of the rear valve body 2, the whole gas path structure is in an axial flow type, and the gas flow flux is larger. In the process, when gas is in the front valve body 1, the gas can reach the left side of the diaphragm 4 through a gap between the front valve body 1 and the valve rod 5, the gas pressure can generate right thrust on the diaphragm 4, the right side of the diaphragm 4 is subjected to the left thrust of the pressure regulating spring 10, the thrusts on two sides of the diaphragm 4 are resisted, and when the gas pressure thrust is greater than the thrust of the pressure regulating spring 10, the diaphragm 4 drives the valve rod 5 to move rightwards so as to enable the valve port gasket 7 to move rightwards, and the pressure regulator tends to be closed; when the air pressure thrust is smaller than the thrust of the pressure regulating spring 10, the diaphragm 4 drives the valve rod 5 to move leftwards, so that the valve port gasket 7 moves leftwards, and the pressure regulator tends to be opened. The opening of the valve port is timely adjusted by sensing the adjusted air pressure value behind the valve port in real time, so that the adjustment of the air pressure and the control of the supply amount are realized.
As an implementation scenario disclosed in the present application, in the implementation scenario, one end of the pressure regulating spring 10 is fixedly connected to the tray 3, and the other end is fixedly connected to the outlet of the rear valve body 2; an adjusting ring 11 is fixed on the outer peripheral side of the outlet of the rear valve body 2 at one end of the valve cavity, and a pressure regulating spring 10 is fixedly connected to the adjusting ring 11, so that the adjusting ring 11 realizes the function of a pressure regulating spring cover.
As an implementation scenario disclosed in the present application, in the implementation scenario, the guide cylinder 9 includes a first guide part 91, a window 92 and a second guide part 93 from left to right, the window 92 is in an inverted frustum shape, a short diameter end of the window is connected to the first guide part 91, and a long diameter end of the window is connected to the second guide part 93; the first guide part 91 is inserted into the sleeve 8 and is used for driving the sleeve 8 to move left and right; the window 92 is arranged in the middle of the tray 3, is separated from the tray 3 and is used for axial circulation of airflow; the second guiding portion 93 is fixedly disposed between the tray 3 and the outlet of the rear valve body 2, and is used for conveying the airflow to the outlet of the rear valve body 2. Through the structural design, the effects of simple whole and clear and definite axial flow channel of the airflow are achieved, and the circulation of large-flow airflow is facilitated.
As an implementation scenario disclosed in the present application, in the implementation scenario, a sealing ring 12 is disposed on a connection surface of the first guide cylinder 91 and the sleeve 8; the sealing rings 12 are also provided on the connection surfaces of the second guide cylinder 93 with the tray 3 and the outlet of the rear valve body 2. Through the design of the sealing ring 12, the air tightness of each space can be ensured, and the normal pressure regulation of the pressure regulator is ensured.
As an implementation scenario disclosed in the present application, in the implementation scenario, a horizontally penetrating channel 51 is provided in the valve rod 5, a balance cavity 81 is provided between the left end surface of the first guide part 91 and the bottom surface of the sleeve 8, and the channel 51 in the valve rod 5 communicates the inlet of the front valve body 1 with the balance cavity 81; further, the diameter of the bottom surface of the sleeve 8 is consistent with the diameter of the valve port pad 7, that is, the horizontal section of the sleeve 8 is consistent with the section of the valve port pad 7. Through the structural design, when the valve is used, upstream air pressure is introduced into the balance cavity 81 through the built-in channel, in the balance cavity 81, the air pressure generates thrust towards the left side on the bottom surface of the sleeve 8 at the right end of the valve rod 5, meanwhile, the valve port cushion 7 is subjected to the thrust towards the right side of the upstream air source, the two thrust directions are opposite, and the stress areas are equal, so that the two thrust directions are mutually offset to form balance; the balance structure effectively reduces the influence of system pressure fluctuation and avoids overpressure hidden danger caused by high closing pressure.
In the whole using process, the left and right stress of the diaphragm 4 controls the left and right movement of the valve port gasket 7, and the air pressure of the valve cavity of the front valve body 1 and the air pressure of the valve cavity of the rear valve body 2 are kept balanced; the balance cavity 81 is stressed left and right to form the balance in the valve rod; meanwhile, due to the connection between the membrane 4 and the tray 3 and the connection structure between the tray 3 and the guide cylinder 9, the membrane 4 and the balance cavity 81 are still in a dynamic balance state in linkage, so that the internal air pressure of the pressure regulator is fully balanced, and the influence of the change of an upstream air source on the closing pressure is effectively reduced.
In the description of the present invention, it is to be understood that the terms "front", "back", "left", "right", "inner", "outer", "bottom", "side", "end", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, or orientations or positional relationships that are conventionally placed when the products of the present invention are used, or orientations or positional relationships that are conventionally understood by those skilled in the art, and are merely for convenience of description of the present invention and for simplicity of description, and do not indicate or imply that the device or element that is referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.
Meanwhile, unless otherwise specifically stated or limited, technical terms or scientific terms used in the present invention should be used in a general sense as understood by those having ordinary skill in the art to which the present invention pertains, and terms such as "set", "connect", "install", and the like should be broadly construed, and for example, may be fixedly connected, detachably connected, or integrated; they may be directly connected or indirectly connected through an intermediate medium, and may be connected through the inside of two elements or in an interaction relationship between two elements, unless otherwise specifically defined, and the specific meaning of the above terms in the present invention will be understood by those skilled in the art according to specific situations.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (7)
1. An axial flow gas pressure regulator, comprising:
the diaphragm is arranged between the front valve body and the rear valve body through a tray;
a valve rod is arranged in a valve cavity of the front valve body and penetrates through the valve port of the front valve body; the periphery of one end of the valve rod, which is positioned on the left side of the valve port, is provided with a valve port pad, and one end of the valve rod, which is positioned on the right side of the valve port, is provided with a sleeve;
a guide cylinder is arranged in a valve cavity of the rear valve body, one end of the guide cylinder penetrates through the tray and is fixedly inserted into the sleeve, and a balance structure is arranged at the insertion position; the other end of the guide cylinder is connected with an outlet of the rear valve body;
airflow windows are arranged at the joints of the valve rod and the guide cylinder;
and a pressure regulating spring is sleeved on the peripheral side of the guide cylinder.
2. The axial-flow gas pressure regulator of claim 1, wherein one end of the pressure regulating spring is fixedly connected to the tray, and the other end of the pressure regulating spring is fixedly connected to the outlet of the rear valve body.
3. The axial-flow type gas pressure regulator of claim 2, wherein an adjusting ring is further fixed on the outer peripheral side of the outlet of the rear valve body at one end of the valve cavity, and the pressure regulating spring is fixedly connected to the adjusting ring.
4. The axial-flow gas pressure regulator of claim 1, wherein the guide cylinder comprises a first guide portion, a window and a second guide portion from left to right, the window is in the shape of an inverted truncated cone, the short diameter end of the window is connected with the first guide portion, and the long diameter end of the window is connected with the second guide portion; the first guide part is inserted in the sleeve in a sliding mode, the window is arranged in the middle of the tray and is separated from the tray, and the second guide part is fixedly arranged between the tray and the outlet of the rear valve body.
5. The axial-flow type gas pressure regulator of claim 4, wherein a sealing ring is arranged on the connecting surface of the first guide cylinder and the sleeve; and sealing rings are also arranged on the connecting surfaces of the second guide cylinder, the tray and the outlet of the rear valve body.
6. The axial flow gas pressure regulator of claim 4, wherein the balancing structure comprises:
the balance cavity is arranged between the left end surface of the first guide part and the bottom surface of the sleeve;
the channel is horizontally arranged in the valve rod in a penetrating manner;
a passage in the valve stem communicates the inlet of the front valve body with the balance chamber.
7. The axial flow gas pressure regulator of claim 1, wherein the diameter of the bottom surface of the sleeve corresponds to the diameter of the valve port gasket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221720989.XU CN217815199U (en) | 2022-07-06 | 2022-07-06 | Axial-flow type gas pressure regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221720989.XU CN217815199U (en) | 2022-07-06 | 2022-07-06 | Axial-flow type gas pressure regulator |
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| Publication Number | Publication Date |
|---|---|
| CN217815199U true CN217815199U (en) | 2022-11-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221720989.XU Active CN217815199U (en) | 2022-07-06 | 2022-07-06 | Axial-flow type gas pressure regulator |
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| Country | Link |
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| CN (1) | CN217815199U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117948452A (en) * | 2024-03-26 | 2024-04-30 | 瑞星久宇燃气设备（成都）有限公司 | Direct-acting axial flow core-pulling voltage regulator for direct burial and parameter acquisition method |
-
2022
- 2022-07-06 CN CN202221720989.XU patent/CN217815199U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117948452A (en) * | 2024-03-26 | 2024-04-30 | 瑞星久宇燃气设备（成都）有限公司 | Direct-acting axial flow core-pulling voltage regulator for direct burial and parameter acquisition method |
| CN117948452B (en) * | 2024-03-26 | 2024-05-28 | 瑞星久宇燃气设备（成都）有限公司 | Direct-acting axial flow core-pulling voltage regulator for direct burial and parameter acquisition method |
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