Integrated double-acting gate valve

Abstract

This invention discloses an integrated double-acting gate valve, comprising a valve body, valve stem, valve cover, bracket, valve seat, and gate. A channel is provided within the valve body, the valve seat is disposed within the valve body, the gate is vertically movable within the valve seat, the valve cover is detachably and fixedly disposed within the valve body at a position corresponding to the gate's vertical movement, the bracket is fixedly disposed on the valve cover, and the valve stem passes through the bracket and valve cover and is rotatably connected to the gate. The valve also includes pressure taps and sensors. Two pressure taps are symmetrically disposed within the gate, and the sensor is fixedly disposed on the valve cover. The port of the pressure tap inside the valve cover corresponds to the interface of the sensor. The gate operably connects the interfaces of the pressure taps and the sensor. The integrated double-acting gate valve provided by this invention allows the valve stem to drive the gate to open, connecting the interface of the pressure taps on the gate to the sensor, thereby enabling the simultaneous presence of a gate valve and an orifice flow meter in the same device, reducing space occupation and saving costs.

Description

Technical Field

[0001] This invention relates to the field of flow measurement technology, and in particular to an integrated double-acting gate valve. Background Technology

[0002] Flat gate valves are commonly used valves in engineering technology. Their structure mainly consists of a valve body, valve seat, parallel gate, valve stem, valve cover, and valve stem drive mechanism. The valve seat and parallel gate employ either hard or soft metal seals. Orifice flow meters are throttling devices that cause localized contraction near the throttling element, increasing the flow velocity and generating a static pressure difference between the upstream and downstream sides. A high-range differential pressure flow meter, composed of a standard orifice plate and a multi-parameter differential pressure transmitter (or differential pressure transmitter, temperature transmitter, and pressure transmitter), measures the flow rate of gases, steam, liquids, and natural gas.

[0003] In industrial production, fluid control and measurement are often required. Currently, flat gate valves and orifice flow meters are commonly used for fluid shut-off and measurement, respectively. This method requires two devices, which not only occupies space but also incurs high costs. Therefore, a dual-acting device integrating a flat gate valve and an orifice flow meter is needed to solve the above problems. Summary of the Invention

[0004] This application provides an integrated double-acting gate valve, which solves the technical problem of space occupation and high installation cost when two devices, gate valve and orifice flow meter, are used together in the prior art.

[0005] This application provides an integrated double-acting gate valve, including a valve body, a valve stem, a valve cover, a bracket, a valve seat, and a gate. The valve body has a channel, the valve seat is disposed within the valve body, the gate is vertically movable within the valve seat, the valve cover is detachably and fixedly disposed on the valve body at a position corresponding to the gate's vertical movement, the bracket is fixedly disposed on the valve cover, and the valve stem passes through the bracket and the valve cover and is rotatably connected to the gate. The valve also includes pressure taps and sensors. Two pressure taps are symmetrically arranged in the gate, and the sensor is fixedly disposed on the valve cover. The port of the pressure tap located within the valve cover corresponds to the interface of the sensor. The gate operably connects the interfaces of the pressure taps and the sensor.

[0006] In some embodiments, a quick connector is fixedly provided at the end of the pressure tapping tube corresponding to the sensor, and the quick connector is operably inserted into the interface of the sensor.

[0007] In some embodiments, a maintenance chamber is provided on the side of the valve body, the maintenance chamber and the valve cover are symmetrically arranged on both sides of the valve body, and the gate is operably inserted into the maintenance chamber.

[0008] In some embodiments, an orifice plate is fixedly installed at the bottom of the maintenance chamber, the orifice plate passes through the valve seat, the flow orifice on the orifice plate is located in the valve body, the flow orifice is coaxial with the channel of the valve body, a sliding cavity is opened at the lower end of the gate, the orifice plate is inserted into the sliding cavity, and the gate and the orifice plate can move relative to each other.

[0009] In some embodiments, the gate hole of the gate is disposed on its lower side, and the flow hole of the orifice plate is disposed on its upper side. When the gate is fully open, the gate hole is coaxial with the channel of the valve body, and the diameter of the flow hole is smaller than the diameter of the gate hole.

[0010] In some embodiments, the outer wall of the gate is provided with a first sealing layer, which is in sealing cooperation with the valve seat, and the inner wall of the sliding cavity is provided with a second sealing layer, which is in sealing cooperation with the orifice plate.

[0011] In some embodiments, the materials of the first sealing layer and the second sealing layer are rubber or polytetrafluoroethylene.

[0012] In some embodiments, a filter screen is provided at the port of the pressure tapping tube located within the valve body.

[0013] In some embodiments, a handwheel is also included, which is rotatably mounted on the bracket and is threadedly connected to the valve stem.

[0014] A flow measurement system includes an integrated double-acting gate valve as described in any of the above technical solutions, wherein a clock module and a communication module are provided in the sensor, and both the clock module and the communication module are electrically connected to the sensor.

[0015] The beneficial effects of this application are as follows:

[0016] The integrated double-acting gate valve provided by this invention opens the gate by driving the valve stem, making the pressure tapping pipe on the gate connected to the sensor interface, thereby realizing the simultaneous presence of a gate valve and an orifice flow meter in the same device, reducing space occupation and saving costs. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention.

[0018] Figure 1 A schematic diagram of the closed state of the integrated double-acting gate valve provided in this application;

[0019] Figure 2 A schematic diagram of the open state of the integrated double-acting gate valve provided in this application.

[0020] Among them, 1-valve body; 2-valve stem; 3-valve cover; 4-bracket; 5-valve seat; 6-gate; 7-channel; 8-pressure tapping pipe; 9-sensor; 10-interface; 11-quick connector; 12-maintenance chamber; 13-orifice plate; 14-sliding cavity; 15-gate hole; 16-flow hole; 17-handwheel. Detailed Implementation

[0021] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0022] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0023] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0024] This application provides an integrated double-acting gate valve, which solves the technical problem in the prior art where two devices, gate valve and orifice flow meter, are used together, resulting in space occupation and high installation costs.

[0025] The technical solution in this application is to solve the above-mentioned technical problems, and the general idea is as follows:

[0026] like Figure 1 , Figure 2As shown, this application provides an integrated double-acting gate valve, including a valve body 1, a valve stem 2, a valve cover 3, a bracket 4, a valve seat 5, and a gate 6. The valve body 1 is provided with a channel 7. The valve seat 5 is disposed in the valve body 1. The gate 6 is rotatably disposed in the valve seat 5. The valve cover 3 is detachably and fixedly disposed in the valve body 1 at the position corresponding to the rotatable position of the gate 6. The bracket 4 is fixedly disposed on the valve cover 3. The valve stem 2 passes through the bracket 4 and the valve cover 3 and is rotatably connected to the gate 6. The gate valve composed of the valve body 1, valve stem 2, valve cover 3, bracket 4, valve seat 5, and gate 6 is an existing gate valve. The structure has a conventional fit relationship with the existing gate valve. The specific fit relationship of the structure will not be described in detail here.

[0027] The integrated double-acting gate valve also includes a pressure tapping pipe 8 and a sensor 9. The sensor 9 is a module in the orifice plate flowmeter used to measure the water pressure in the pressure tapping pipe 8. Its specific method of acquiring water pressure and calculating flow rate is the same as that of existing orifice plate flowmeters. This invention is not an improvement on the measurement method of the orifice plate flowmeter. The specific improvement of this invention is as follows: two pressure tapping pipes 8 are symmetrically arranged in the gate plate 6; the sensor 9 is fixedly installed on the valve cover 3; the port of the pressure tapping pipe 8 located inside the valve cover 3 corresponds to the interface 10 of the sensor 9; the pressure tapping pipe 8 is located on the valve cover. The port inside 3 and the interface 10 of the sensor 9 are arranged along the movement direction of the gate 6. The port of the pressure tapping tube 8 in the valve body 1 is located on the side of the gate 6. Specifically, the pressure tapping tube 8 can be an L-shaped through hole opened inside the gate 6, so that the pressure tapping tube 8 can introduce the liquid in the valve body 1 into the interface 10 of the sensor 9. The gate 6 can operably drive the pressure tapping tube 8 and the interface 10 of the sensor 9 to connect. Of course, when the pressure tapping tube 8 and the interface 10 of the sensor 9 are connected, the pressure tapping tube 8 and the sensor 9 can be sealed to ensure that the pressure tapped by the pressure tapping tube 8 is accurate.

[0028] Optionally, a filter screen may be installed at the port of the pressure tapping pipe 8 located inside the valve body 1 to prevent residue from entering the pressure tapping pipe 8 and causing blockage.

[0029] During the process of driving valve stem 2 to open gate 6, pressure tapping pipe 8 on gate 6 is connected to interface 10 of sensor 9 and conducts the orifice flow meter, thus realizing the simultaneous presence of gate valve and orifice flow meter in the same device, reducing space occupation and saving costs.

[0030] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0031] Preferably, a quick connector 11 is fixedly provided at the end of the pressure tapping tube 8 corresponding to the sensor 9. The quick connector 11 is operably inserted into the interface 10 of the sensor 9. The quick connector 11 and the interface 10 are Luer connectors or quick-connect male and female connectors. During the opening of the gate 6, the gate 6 moves in the valve cover 3. When the gate 6 is fully open, the gate 6 drives the quick connector 11 to be inserted into the interface 10 of the sensor 9. The quick connector 11 is initially in a closed state. After the quick connector 11 cooperates with the interface 10 of the sensor 9, it automatically opens. The quick connector 11 is an existing mature product, and its specific working principle will not be described in detail. This allows the liquid in the pressure tapping tube 8 to enter the sensor 9 through the quick connector 11, realizing the connection of the liquid channel 7 of the orifice plate flowmeter while the gate valve is fully opened. The structure is simple and ingenious, saving space.

[0032] A maintenance chamber 12 is provided on the side of the valve body 1. The maintenance chamber 12 is installed on the valve body 1 by bolts, which facilitates the replacement of different models of orifice plates 13. The maintenance chamber 12 and the valve cover 3 are symmetrically arranged on both sides of the valve body 1. The gate plate 6 can be operably inserted into the maintenance chamber 12.

[0033] An orifice plate 13 is fixedly installed at the bottom of the maintenance chamber 12. The orifice plate 13 passes through the valve seat 5. The flow orifice 16 on the orifice plate 13 is located in the valve body 1. The flow orifice 16 is coaxial with the channel 7 of the valve body 1. A sliding cavity 14 is opened at the lower end of the gate plate 6. The orifice plate 13 is inserted into the sliding cavity 14. The gate plate 6 and the orifice plate 13 can move relative to each other.

[0034] The gate hole 15 of the gate plate 6 is located on its lower side, and the flow hole 16 of the orifice plate 13 is located on its upper side. When the gate plate 6 is fully open, the gate hole 15 is coaxial with the channel 7 of the valve body 1. The diameter of the flow hole 16 is smaller than the diameter of the gate hole 15, so that the gate hole 15 and the orifice plate 13 are concentric after the gate plate 6 is fully open, and the gate plate 6 and the orifice plate 13 form the reduced diameter channel 7 of the orifice plate flowmeter, which has a simple structure.

[0035] When the gate 6 is closed, it blocks the internal channel 7 of the valve body 1. During the opening process, the gate 6 and the orifice plate 13 cooperate through the sliding cavity 14, and the gate 6 is fully opened. The gate orifice 15 and the flow orifice 16 are coaxial with the channel 7 of the valve body 1, so that the gate valve is opened and the orifice plate flow meter is completed. The operation is simple and two functions can be achieved in one operation.

[0036] Furthermore, the outer wall of the gate 6 is provided with a first sealing layer, which is sealed to the valve seat 5. The inner wall of the sliding cavity 14 is provided with a second sealing layer, which is sealed to the orifice plate 13. The materials of the first sealing layer and the second sealing layer are rubber or polytetrafluoroethylene. During the up-and-down movement of the gate 6, the first sealing layer seals between the gate 6 and the valve seat 5, and the second sealing layer seals between the gate 6 and the orifice plate 13, so that the valve body 1 has a good sealing effect and avoids water leakage at the valve body 1, which would cause unstable liquid pressure.

[0037] Furthermore, the gate valve also includes a handwheel 17, which is rotatably mounted on the bracket 4. The handwheel 17 is threadedly connected to the valve stem 2. By rotating the handwheel 17, the valve stem 2 drives the gate plate 6 to move up and down due to the rotatable connection between the handwheel 17 and the bracket 4.

[0038] The present invention also provides a flow measurement system, including an integrated double-acting gate valve as described in any of the above technical solutions, wherein a clock module and a communication module are provided in the sensor, and both the clock module and the communication module are electrically connected to the sensor.

[0039] After the gate valve is opened, the interface between the pressure tap and the sensor is connected. During the measurement of low-flow liquid at night, the battery power in the sensor is limited and insufficient to support high-frequency acquisition throughout the night. By presetting a time period through the clock module, the clock module sends a signal to the sensor at regular intervals, such as once every minute, within the preset time period, for example, 2-4 am. The sensor collects the current flow rate, and the collected flow information is transmitted to an external processor for collection and processing through the communication module. The current liquid flow rate can be measured at fixed times and frequencies, resulting in richer and more accurate flow data and reducing the possibility of data loss due to insufficient power of the sensor.

[0040] Although preferred embodiments of the invention have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including both the preferred embodiments and all changes and modifications falling within the scope of the invention.

[0041] Obviously, those skilled in the art can make various modifications and variations to this invention without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this invention and their equivalents, this invention also intends to include these modifications and variations.

Claims

1. An integrated double-acting gate valve, characterized by, The valve body, the valve stem, the valve cover, the bracket, the valve seat and the gate plate, the valve body is provided with a channel, the valve seat is arranged in the valve body, the gate plate is arranged in the valve seat, the valve cover is detachably fixed in the position corresponding to the gate plate lifting of the valve body, the bracket is fixed on the valve cover, the valve stem passes through the bracket and the valve cover and is rotatably connected with the gate plate; the gate valve further comprises two pressure taking pipes and a sensor, the two pressure taking pipes are symmetrically arranged in the gate plate, the sensor is fixed on the valve cover, the port of the pressure taking pipe in the valve cover is correspondingly arranged with the interface of the sensor, and the gate plate operatively drives the interface of the pressure taking pipe and the sensor to be connected; when the gate plate is closed, the pressure taking pipe is in a closed state, and when the gate plate is opened, the pressure taking pipe connects the channel of the valve body with the interface of the sensor.

2. The integrated double-acting gate valve as defined in claim 1, wherein The end of the pressure taking pipe corresponding to the sensor is fixedly provided with a quick connector, and the quick connector is operatively inserted into the interface of the sensor.

3. The integrated double-acting gate valve as defined in claim 1, wherein The valve body is provided with an inspection chamber on the side, the inspection chamber is symmetrically arranged on both sides of the valve body with the valve cover, and the gate plate is operatively inserted into the inspection chamber.

4. The integrated double-acting gate valve as defined in claim 3, wherein The bottom of the inspection chamber is fixedly provided with a hole plate, the hole plate passes through the valve seat, the flow hole on the hole plate is located in the valve body, the flow hole is coaxial with the channel of the valve body, the lower end of the gate plate is provided with a sliding cavity, the hole plate is inserted into the sliding cavity, and the gate plate and the hole plate can relatively move.

5. The integrated double-acting gate valve as defined in claim 4, wherein, The gate hole of the gate plate is arranged on the lower side, the flow hole of the hole plate is arranged on the upper side, the gate hole is coaxial with the channel of the valve body when the gate plate is completely opened, and the diameter of the flow hole is smaller than that of the gate hole.

6. The integrated double-acting gate valve as defined in claim 4, wherein, The outer wall of the gate plate is provided with a first sealing layer, the first sealing layer is in sealing cooperation with the valve seat, the inner wall of the sliding cavity is provided with a second sealing layer, and the second sealing layer is in sealing cooperation with the hole plate.

7. The integrated double-acting gate valve as defined in claim 6, wherein The materials of the first sealing layer and the second sealing layer are rubber or polytetrafluoroethylene.

8. The one-piece double-acting gate valve as defined in claim 1, wherein, The port of the pressure taking pipe in the valve body is provided with a filter screen.

9. The valve as claimed in claim 1, further comprising a hand wheel, the hand wheel being rotatably arranged on the bracket, and the hand wheel being threadedly connected with the valve stem.

10. A flow measurement system characterized by, The integrated double-acting gate valve comprises the integrated double-acting gate valve according to any one of claims 1-9, a clock module and a communication module are arranged in the sensor, and the clock module and the communication module are electrically connected with the sensor.

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