Natural gas separate transportation opening and closing valve

Abstract

The utility model discloses a natural gas separate transportation opening and closing valve, and relates to the technical field of valves. An adjusting pipe is connected between the air inlet pipe and the air outlet pipe, an adjusting mechanism is arranged at the top end of the adjusting pipe, a monitoring mechanism is arranged at the top end of the air outlet pipe, the adjusting mechanism comprises an adjusting valve located in the adjusting pipe, a first rotating shaft is connected to the top end of the adjusting valve, and a handle is connected to the top end of the first rotating shaft. The monitoring mechanism comprises an impeller located in the air outlet pipe. According to the utility model, the adjusting mechanism, the handle, the first rotating shaft and the spherical adjusting valve are matched, so that an operator can accurately adjust the natural gas flow according to the actual gas use requirement, when the spherical adjusting valve rotates in the adjusting pipe, the through-flow sectional area can be uniformly and smoothly changed, the continuous and relatively linear flow adjusting effect is realized, and the working efficiency is improved. And diversified flow control requirements of different users under different gas use scenes are met.

Description

TECHNICAL FIELD

[0001] The utility model belongs to valve technical field, specifically, relate to a natural gas distribution opening and closing valve. BACKGROUND

[0002] With the global importance of clean energy is constantly improved, natural gas as a kind of relatively clean, efficient fossil energy, its application field is increasingly widespread, from traditional city gas supply, meet the residents life gas (such as cooking, heating, etc.), to industrial field as fuel for power generation, chemical production and so on, as well as the application scene such as natural gas vehicle in transportation field is constantly expanding, this makes the natural gas conveying network increasingly complex, needs a large number of reliable distribution opening and closing valves to accurately control the distribution of natural gas in different links, different user ends, to guarantee the efficient, stable operation of the entire natural gas supply system.

[0003] The Chinese patent with publication number CN213394637U discloses a kind of natural gas safety valve, including: tubular valve housing, valve core, tubular valve housing's left and right two ends are connected with natural gas pipeline respectively through connecting device, the left side of tubular valve housing is communicated with natural gas inlet pipeline, the right side of tubular valve housing is communicated with natural gas outlet pipeline, when danger occurs, the electric control valve of safety protection device opens and passes into the carbon dioxide in safety gas storage tank into natural gas outlet pipeline, effectively avoid danger further expansion, but the valve cannot control flow, it is difficult to accurately adjust natural gas supply according to diversification, dynamic change needs, lead to either gas supply excess causes waste, or gas supply is insufficient to affect normal use of user.

[0004] Therefore, the utility model is provided. UTILITY MODEL CONTENT

[0005] The utility model solves the technical problem in the prior art, provides a kind of natural gas distribution opening and closing valve, solves the problem raised in the above background.

[0006] To solve the above technical problems, the basic idea of the technical scheme of the utility model is:

[0007] A kind of natural gas distribution opening and closing valve, including: gas inlet pipe and gas outlet pipe, the adjusting pipe is connected between the gas inlet pipe and gas outlet pipe, the adjusting pipe top end is equipped with adjusting mechanism, the gas outlet pipe top end is equipped with monitoring mechanism, the adjusting mechanism includes the adjusting valve in adjusting pipe, the adjusting valve top end is connected with first rotating shaft, the first rotating shaft top end is connected with handle, the monitoring mechanism includes the impeller in gas outlet pipe, the impeller top end is connected with second rotating shaft, the second rotating shaft top end is connected with inductor.

[0008] Optionally, the top end of the adjusting pipe is provided with a first protrusion containing a first rotating shaft, and the first rotating shaft penetrates the first protrusion and the adjusting pipe in sequence.

[0009] Optionally, the top end of the first protrusion is connected with a scale disc, and the bottom end of the handle is connected with a pointer abutting against the scale disc.

[0010] Optionally, a groove is arranged in the first protrusion, and a limiting block is connected to the surface of the first rotating shaft, and the limiting block is located in the groove and rotationally connected with the groove.

[0011] Optionally, the adjusting valve is spherical, and the adjusting valve is embedded in the adjusting pipe and rotationally connected with the adjusting pipe.

[0012] Optionally, the top end of the air outlet pipe is provided with a second protrusion containing a second rotating shaft, the second rotating shaft penetrates the second protrusion and the air outlet pipe in sequence and is rotationally connected with the second protrusion and the air outlet pipe, and the inductor is located at the top end of the second protrusion.

[0013] Optionally, the sidewall of the air inlet pipe and the air outlet pipe is connected with a fixing disc, and a plurality of bolt holes are arranged on the surface of the fixing disc.

[0014] After the above technical scheme is adopted, the present application has the following advantages compared with the prior art, of course, any product implementing the present application does not necessarily need to achieve all the advantages described below:

[0015] 1. By setting the adjusting mechanism, the handle, the first rotating shaft and the spherical adjusting valve, the operator can accurately adjust the natural gas flow according to the actual gas demand, and the spherical adjusting valve can uniformly and smoothly change the flow area when rotating in the adjusting pipe, realizing continuous and relatively linear flow adjustment effect, meeting the diversified flow control requirements of different users and different gas use scenes. Whether it is the demand for accurate gas volume in industrial production or the appropriate supply in residential gas use, accurate allocation can be realized.

[0016] 2. By setting the monitoring mechanism, the proportional relationship between the impeller speed and the natural gas flow rate is used to convert the gas flow state into a measurable physical signal, and then the inductor is converted and transmitted, so that the operator can timely master the actual flow size and flow state change of natural gas in the distribution process, and adjust and optimize the flow at any time according to the feedback information, and ensure the stability and continuity of gas use.

[0017] The specific implementation of the present application will be described in further detail below in combination with the drawings. BRIEF DESCRIPTION OF DRAWINGS

[0018] The drawings in the following description are only some embodiments, and other drawings can be obtained by those skilled in the art without creative labor on the basis of the drawings. In the drawings:

[0019] Figure 1 It is a schematic diagram of the overall structure;

[0020] Figure 2 It is a schematic diagram of the sectional structure of the adjusting pipe;

[0021] Figure 3 It is Figure 2 It is a schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 4 It is a schematic diagram of the sectional structure of the outlet pipe.

[0023] In the drawings, the components represented by each reference numeral are listed as follows:

[0024] 1, inlet pipe; 2, outlet pipe; 3, fixed disc; 4, adjusting pipe; 5, dial; 6, handle; 7, inductor; 8, first rotating shaft; 9, adjusting valve; 10, limiting block; 11, first protrusion; 12, second protrusion; 13, pointer; 14, second rotating shaft; 15, impeller.

[0025] It should be noted that these drawings and written descriptions are not intended to limit the scope of the concept of the utility model in any way, but to illustrate the concept of the utility model to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0026] The utility model will be further described in detail in combination with the drawings.

[0027] Please refer to Figures 1-4 shown, in the embodiment, a natural gas distribution opening and closing valve is provided, which comprises: an inlet pipe 1 and an outlet pipe 2, an adjusting pipe 4 is connected between the inlet pipe 1 and the outlet pipe 2, an adjusting mechanism is arranged at the top end of the adjusting pipe 4, a monitoring mechanism is arranged at the top end of the outlet pipe 2, the adjusting mechanism comprises an adjusting valve 9 arranged in the adjusting pipe 4, the adjusting valve 9 is connected with a first rotating shaft 8 at the top end, the first rotating shaft 8 is connected with a handle 6 at the top end, the monitoring mechanism comprises an impeller 15 arranged in the outlet pipe 2, the impeller 15 is connected with a second rotating shaft 14 at the top end, and the second rotating shaft 14 is connected with an inductor 7 at the top end.

[0028] The natural gas distribution on-off valve is mainly composed of an inlet pipe 1, an outlet pipe 2 and a regulating pipe 4 connected with them to form a complete gas conveying channel, different components bear the functions of gas inlet, flow regulation and gas outlet respectively, the regulating mechanism arranged at the top end of the regulating pipe 4 is used for controlling the gas flow, the monitoring mechanism is equipped at the top end of the outlet pipe 2 to monitor the related conditions of the gas, and the parts work together to realize effective control and monitoring in the natural gas distribution process, the handle 6 is arranged at the outer top end of the whole valve, which is convenient for the operator to hold and apply a rotating force directly, the operator can rotate the handle 6 clockwise or counterclockwise according to the actual gas demand, the regulating valve 9 is driven to move correspondingly by the first rotating shaft 8 to realize manual regulation of the natural gas flow, the impeller 15 is located in the outlet pipe 2, when the natural gas flows through the outlet pipe 2 from the regulating pipe 4 to be conveyed outward, the airflow will generate an impact force on the impeller 15 to drive the impeller 15 to rotate around the second rotating shaft 14, the rotating speed of the impeller 15 is directly proportional to the flow rate of the natural gas in the outlet pipe 2, that is, the faster the flow rate of the natural gas, the higher the rotating speed of the impeller 15; on the contrary, when the flow rate slows down, the rotating speed of the impeller 15 also decreases accordingly, by monitoring the rotating speed of the impeller 15, the size of the natural gas flow and the flow state and other information can be indirectly understood, the inductor 7 is installed at the top end of the second rotating shaft 14, which can sense the rotating speed information of the impeller 15 transmitted by the second rotating shaft 14 in real time and convert it into an electric signal or other identifiable and transmittable signal form.

[0029] In the embodiment, the first protrusion 11 accommodating the first rotating shaft 8 is arranged at the top end of the regulating pipe 4, the first rotating shaft 8 penetrates the first protrusion 11 and the regulating pipe 4 in sequence, the top end of the first protrusion 11 is connected with the dial 5, the bottom end of the handle 6 is connected with the pointer 13 abutting against the dial 5, the recess is arranged in the first protrusion 11, the limiting block 10 is connected with the surface of the first rotating shaft 8 and located in the recess and rotationally connected with the recess, the regulating valve 9 is spherical and embedded in the regulating pipe 4, the regulating valve 9 is rotationally connected with the regulating pipe 4, the second protrusion 12 accommodating the second rotating shaft 14 is arranged at the top end of the outlet pipe 2, the second rotating shaft 14 penetrates the second protrusion 12 and the outlet pipe 2 in sequence and is rotationally connected with the second protrusion 12 and the outlet pipe 2, the inductor 7 is located at the top end of the second protrusion 12, the fixed disc 3 is connected with the side wall of the inlet pipe 1 and the outlet pipe 2, and a plurality of bolt holes are arranged on the surface of the fixed disc 3.

[0030] A first protrusion 11 is arranged at the top end of the adjusting pipe 4, and the main purpose is to provide stable support and accommodation space for the first rotating shaft 8, to ensure that the first rotating shaft 8 has accurate positioning during rotation and cannot deviate or shake, so as to ensure that the rotating action of the handle 6 can be accurately transmitted to the adjusting valve 9, to achieve reliable adjustment of the natural gas flow. The dial 5 is connected at the top end of the first protrusion 11, and the pointer 13 at the bottom end of the handle 6 abuts against the dial 5, thereby forming an intuitive flow adjustment indication device. When the operator rotates the handle 6, the pointer 13 will move on the dial 5 along with the handle 6, and the dial 5 can be marked with corresponding scale values. The operator can clearly know the current opening degree of the adjusting valve 9 and the approximate situation of the natural gas flow by observing the scale pointed by the pointer 13, thereby facilitating accurate flow adjustment operation. The cooperation of the limiting block 10 and the groove can prevent the first rotating shaft 8 from being excessively rotated, to avoid the adjusting valve 9 exceeding the normal working range due to excessive rotation angle. The spherical adjusting valve 9 can relatively uniformly and smoothly change the flow area between the inner wall of the adjusting pipe 4 during rotation adjustment, to achieve continuous and relatively linear adjustment effect of the natural gas flow. Meanwhile, the rotating connection mode with the adjusting pipe 4 enables the adjusting valve 9 to be driven by the first rotating shaft 8 and flexibly rotate in the adjusting pipe 4, to achieve the purposes of opening, closing and different opening degree adjustment, thereby meeting diversified flow control requirements. A second protrusion 12 is arranged at the top end of the outlet pipe 2, and the function is similar to that of the first protrusion 11, which provides support and positioning for the second rotating shaft 14, to ensure that the second rotating shaft 14 is firmly installed in the outlet pipe 2 and can stably rotate. The second rotating shaft 14 is sequentially penetrated through the second protrusion 12 and the outlet pipe 2 and is rotationally connected therewith, so that the rotating motion of the impeller 15 can be effectively transmitted to the inductor 7 located at the top end of the second protrusion 12 through the second rotating shaft 14, to ensure normal operation of the entire monitoring mechanism and avoid problems such as inaccurate signal transmission and aggravated component wear due to unstable rotating shaft installation. The inductor 7 is placed at the top end of the second protrusion 12, which on one hand facilitates connection with the second rotating shaft 14 and can more directly and accurately receive the impeller 15 rotating speed signal transmitted from the second rotating shaft 14; and on the other hand, the relatively external position is conducive to wiring connection of the inductor 7 with external display devices, control systems and the like, to facilitate signal output and realize remote monitoring or data recording of the natural gas flow, and also facilitates maintenance and repair of the inductor 7. The fixing disc 3 can facilitate installation of the entire natural gas distribution on-off valve in the corresponding natural gas pipeline system.

[0031] Working principle:

[0032] When the natural gas enters the valve from the inlet pipe 1, if the adjusting valve 9 is in the closed state, the natural gas cannot flow to the outlet pipe 2 through the adjusting pipe 4; if the adjusting valve 9 is in the open state

[0033] When the valve is opened to a certain extent, natural gas can flow into the adjusting pipe 4, ready to flow to the outlet pipe 2 after subsequent adjustment, and the entire valve is in an initial preparation state for flow adjustment and monitoring;

[0034] The operator operates the handle 6 at the top end outside the valve according to the gas demand, when the handle 6 is rotated clockwise or counterclockwise, the pointer 13 at the bottom end connected with the handle 6 moves on the scale disc 5, and the rotating action of the handle 6 is transmitted through the first rotating shaft 8 connected with the handle 6, the spherical adjusting valve 9 is rotationally connected with the adjusting pipe 4 in the adjusting pipe 4, and the adjusting valve 9 changes the flow area between the adjusting valve 9 and the inner wall of the adjusting pipe 4 with the rotation of the first rotating shaft 8, for example, when the adjusting valve 9 rotates to the closing direction, the flow area gradually decreases, and the natural gas flow decreases accordingly; when the adjusting valve 9 rotates to the opening direction, the flow area increases, and the natural gas flow increases accordingly, and the continuous and relatively linear adjustment mode is realized.

[0035] The natural gas after flow adjustment in the adjusting pipe 4 enters the outlet pipe 2 and is transported outward, in the process, the natural gas flow impacts the impeller 15 in the outlet pipe 2, and the impeller 15 starts to rotate around the second rotating shaft 14 due to the force of the gas flow, the rotation speed of the impeller 15 is directly proportional to the flow speed of the natural gas in the outlet pipe 2, that is, when the flow speed of the natural gas is fast, the rotation speed of the impeller 15 is high, and when the flow speed of the natural gas is slow, the rotation speed of the impeller 15 is also reduced, so that the flow speed of the natural gas is converted into the rotation motion of the impeller 15, the rotation motion of the impeller 15 is transmitted outward through the second rotating shaft 14, the second rotating shaft 14 is connected with the inductor 7 at the top end, the inductor 7 can sense the rotation speed information of the impeller 15 in real time and convert the rotation speed information into an electric signal or other identifiable and transmittable signal form, then, the signals can be transmitted to external display equipment, a control system and the like, and then the functions of real-time monitoring, remote monitoring and data recording of the size and flow state of the natural gas flow and the like are realized, so that the operator can timely master the actual situation in the natural gas distribution process.

[0036] The utility model is not limited to the above-mentioned embodiment, any person should know that the structural change made under the inspiration of the utility model, any technical scheme with the same or similar technical scheme of the utility model falls into the protection scope of the utility model. The utility model does not describe the technology, shape and structure part in detail, which is the known technology.

Claims

1. A gas distribution on-off valve, comprising: The air inlet pipe (1) and the air outlet pipe (2) are characterized in that the air inlet pipe (1) and the air outlet pipe (2) are connected with the adjusting pipe (4), the top end of the adjusting pipe (4) is provided with the adjusting mechanism, and the top end of the air outlet pipe (2) is provided with the monitoring mechanism. The adjusting mechanism comprises the adjusting valve (9) in the adjusting pipe (4), the top end of the adjusting valve (9) is connected with the first rotating shaft (8), the top end of the first rotating shaft (8) is connected with the handle (6), the monitoring mechanism comprises the impeller (15) in the air outlet pipe (2), the top end of the impeller (15) is connected with the second rotating shaft (14), and the top end of the second rotating shaft (14) is connected with the inductor (7).

2. The gas distribution on / off valve according to claim 1, characterized in that: The top end of the adjusting pipe (4) is provided with the first protrusion (11) containing the first rotating shaft (8), and the first rotating shaft (8) penetrates the first protrusion (11) and the adjusting pipe (4) in sequence.

3. The gas distribution on / off valve of claim 2, wherein: The top end of the first protrusion (11) is connected with the dial (5), the bottom end of the handle (6) is connected with the pointer (13), and the pointer (13) abuts against the dial (5).

4. The gas distribution on / off valve of claim 3, wherein: The first protrusion (11) is provided with a groove, the surface of the first rotating shaft (8) is connected with the limiting block (10), the limiting block (10) is located in the groove and rotationally connected with the groove.

5. The gas distribution on / off valve of claim 1, wherein: The adjusting valve (9) is spherical, and the adjusting valve (9) is embedded in the adjusting pipe (4) and rotationally connected with the adjusting pipe (4).

6. The gas distribution on / off valve of claim 1, wherein: The top end of the air outlet pipe (2) is provided with the second protrusion (12) containing the second rotating shaft (14), the second rotating shaft (14) penetrates the second protrusion (12) and the air outlet pipe (2) in sequence and is rotationally connected with the second protrusion (12) and the air outlet pipe (2), and the inductor (7) is located at the top end of the second protrusion (12).

7. The gas distribution on / off valve of claim 1, wherein: The side walls of the air inlet pipe (1) and the air outlet pipe (2) are connected with the fixing disc (3), and a plurality of bolt holes are formed in the surface of the fixing disc (3).

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