Stop valve with detection and alarm functions

Abstract

The invention relates to the technical field of stop valves, and provides a stop valve with detection and alarm functions, which comprises a stop valve body, connecting pipes are fixedly mounted at the two ends of the stop valve body through flanges, and three fixing assemblies are arranged on each of the two fixing assemblies. A pressure sensor, a flow sensor and a temperature sensor are fixedly installed on the three fixing assemblies respectively, a driving assembly is arranged on a valve rod of the stop valve body, a power assembly is arranged on the stop valve body, the power assembly is connected with the driving assembly, and a control mechanism is arranged below the stop valve body. Through the flow sensor and the temperature sensor, the temperature of fluid flowing through the stop valve body can be monitored, it is ensured that the operation condition is within a safe range, the flow of the fluid flowing through the stop valve body can be measured, it is ensured that the flow is within a set range, and therefore errors or false alarms possibly existing in a single detection mode are reduced; the combined use can make up for the defects of each other, thereby improving the overall detection precision.

Description

Technical Field

[0001] The present invention relates to the technical field of globe valves, and particularly relates to a globe valve with a detection and alarm function. Background Art

[0002] A globe valve, also known as a stop valve, belongs to a forced-sealing valve. Therefore, when the valve is closed, pressure must be applied to the valve flap to force the sealing surface not to leak. The closing principle of the globe valve is to rely on the pressure of the valve stem to make the sealing surface of the valve flap closely fit with the sealing surface of the valve seat to prevent the medium from flowing through.

[0003] It is known that the Chinese publicly authorized patent CN215410504U discloses a globe valve for pipelines with a pressure monitoring and warning function, which includes: a globe valve assembly, including a connecting pipeline and a globe valve body, and a globe valve body is installed on one side of the connecting pipeline; a pressure detection assembly, including a housing, a pressure sensor, a timer, a display screen and an alarm. A housing is installed on the outer top side of the connecting pipeline. A pressure sensor and a timer are installed inside the housing. The sensing end of the pressure sensor penetrates into the connecting pipeline. A display screen is installed on the front wall outside the housing, and an alarm is installed on the outer top of the housing. This globe valve for pipelines with a pressure monitoring and warning function can sense the pressure inside the pipeline in real time and display it, which is convenient for the staff to check. And when the internal pressure is large and lasts for a long time, it will automatically remind the surrounding personnel to avoid danger.

[0004] However, in the implementation of the related technology, it is found that the above solutions have the following problems: the detection method is single, temperature changes will cause the output signal of the pressure sensor to drift, thus affecting the measurement accuracy. At the same time, at high frequencies, the output signal of the pressure sensor will attenuate or distort, affecting the signal reliability. Secondly, the existing technology does not have an emergency cut-off function when in use. Once the sensor detects that the preset safety parameters are exceeded, the valve will not automatically close, thus making the dangerous situation deteriorate further and unable to protect the safety of equipment and personnel. Summary of the Invention

[0005] The present invention provides a globe valve with a detection and alarm function, which solves the problems in the related technology, such as single detection method, temperature changes will cause the output signal of the pressure sensor to drift, thus affecting the measurement accuracy. At the same time, at high frequencies, the output signal of the pressure sensor will attenuate or distort, affecting the signal reliability. It does not have an emergency cut-off function. Once the sensor detects that the preset safety parameters are exceeded, the valve will not automatically close, thus making the dangerous situation deteriorate further and unable to protect the safety of equipment and personnel.

[0006] The technical solution of the present invention is as follows: A globe valve with a detection and alarm function, including a globe valve body, both ends of the globe valve body are fixedly installed with connecting pipes through flanges, and three fixing components are arranged on each of the two fixing components. A pressure sensor, a flow sensor and a temperature sensor are respectively fixedly installed on the three fixing components; A driving component is arranged on the valve stem of the globe valve body, a power component is arranged on the globe valve body, and the power component is connected to the driving component; A control mechanism is arranged below the globe valve body, an installation component is arranged on the control mechanism, and the control mechanism is fixed on the globe valve body through the installation component; An alarm and an alarm lamp are respectively fixedly installed on one side of the control mechanism, and the alarm, the alarm lamp, the pressure sensor, the flow sensor, the temperature sensor and the power component are all electrically connected to the control mechanism.

[0007] Preferably, the fixing component includes a hollow tube fixedly installed through the connecting pipe, a spiral cover is threadedly connected to the bottom end of the hollow tube, and the pressure sensor, the flow sensor and the temperature sensor are respectively fixedly installed through the three spiral covers.

[0008] Preferably, a rubber sealing ring is fixedly installed on the inner bottom wall of the spiral cover, and the top of the rubber sealing ring is in contact with the hollow tube.

[0009] Preferably, a fixing clip and a fixing bracket are respectively arranged on the outer side wall of the connecting pipe, and the fixing clip and the fixing bracket are arranged oppositely up and down. A hexagonal bolt is inserted into the round hole of the fixing clip, and the screw end of the hexagonal bolt passes through the round hole on the fixing bracket and is threadedly connected with a first nut.

[0010] Preferably, the control mechanism includes a control shell arranged below the globe valve body. A control module and a wireless communication module are respectively arranged inside the control shell, and the wireless communication module, the alarm, the alarm lamp, the pressure sensor, the flow sensor, the temperature sensor and the power component are all electrically connected to the control module.

[0011] Preferably, the installation component includes four L-shaped plates, and the four L-shaped plates are respectively fixedly installed in two groups on the front and rear sides of the control shell. Two U-shaped bolts are arranged on the outer side wall of the globe valve body, and both ends of the U-shaped bolts respectively pass through the corresponding L-shaped plates and are threadedly connected with second nuts.

[0012] Preferably, the driving component includes an annular plate sleeved on the valve stem of the globe valve body. A plurality of insertion slots are sequentially arranged in a circular array at the top of the annular plate. A cross bar is inserted into the inner side of the insertion slot. A plurality of strip-shaped slots are sequentially arranged in a circular array on the valve stem of the globe valve body, and the other end of the cross bar is inserted into the strip-shaped slot.

[0013] Preferably, the power component includes a motor fixedly installed on the globe valve body through a mounting bracket. The output end of the motor penetrates through one side wall of the mounting bracket and is fixedly installed with a driving gear. A driven gear is fixedly installed on the outer side wall of the annular plate, and the driving gear is meshed with the driven gear.

[0014] Preferably, two arc-shaped plates are symmetrically arranged above the annular plate. The arc-shaped plates and the annular plate are provided with communicating screw holes, and screws are threadedly connected to the inner sides of the screw holes.

[0015] The working principle and beneficial effects of the present invention are as follows: 1. Through the flow sensor and the temperature sensor, it is possible to not only monitor the temperature of the fluid flowing through the globe valve body to ensure that the operating conditions are within the safe range, but also measure the flow rate of the fluid flowing through the globe valve body to ensure that the flow rate is within the set range, thereby reducing the errors or false alarms that may exist in a single detection method. The combined use can make up for each other's deficiencies, thereby improving the overall detection accuracy.

[0016] 2. By driving the driving component through the power component, when the detection of the globe valve body exceeds the preset safety parameters, the globe valve body will automatically close under the action of the driving component, thereby being able to prevent the further deterioration of dangerous situations and protecting the safety of equipment and personnel.

[0017] 3. Through the hexagon bolt and the first nut thereon, the fixing clamp and the fixing bracket can be fixed on the connecting pipe. Then, under the action of the fixing clamp and the hexagon bolt, the fixing component can be stably fixed on the connecting pipe, thereby avoiding the loosening phenomenon of the fixing component during long-term use, and thus being able to ensure the sealing effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further describes the present invention in detail with reference to the drawings and specific embodiments.

[0019] Figure 1 is the overall structural schematic diagram proposed by the present invention; Figure 2 is the sectional structural schematic diagram of the globe valve body proposed by the present invention; Figure 3 is the sectional structural schematic diagram of the connecting pipe proposed by the present invention; Figure 4Schematic structural diagram of the fixing card proposed by the present invention; Figure 5 Schematic structural diagram of the installation component proposed by the present invention; Figure 6 Partial schematic structural diagram of the globe valve body proposed by the present invention; Figure 7 Schematic structural diagram of the power component proposed by the present invention; Figure 8 Schematic electrical connection diagram proposed by the present invention.

[0020] In the figure: 1, globe valve body; 2, connecting pipe; 3, fixing component; 31, hollow pipe; 32, screw cap; 4, pressure sensor; 5, flow sensor; 6, temperature sensor; 7, driving component; 71, annular plate; 72, insertion slot; 73, cross bar; 74, strip slot; 8, power component; 81, motor; 82, driving gear; 83, driven gear; 9, control housing; 10, installation component; 101, L-shaped plate; 102, U-shaped bolt; 103, second nut; 11, alarm; 12, alarm lamp; 13, fixing card; 14, fixing bracket; 15, hexagon bolt; 16, arc plate; 17, screw. Specific implementation mode

[0021] Next, in combination with the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the scope of protection of the present invention.

[0022] Embodiment 1 Please refer to Figure 1 - Figure 8 , a globe valve with a detection and alarm function, including a globe valve body 1. Both ends of the globe valve body 1 are fixedly installed with connecting pipes 2 through flanges. Three fixing components 3 are provided on each of the two fixing components 3, and a pressure sensor 4, a flow sensor 5 and a temperature sensor 6 are respectively fixedly installed on the three fixing components 3; A driving component 7 is provided on the valve stem of the globe valve body 1, and a power component 8 is provided on the globe valve body 1, and the power component 8 is connected to the driving component 7; A control mechanism is provided below the globe valve body 1. An installation component 10 is provided on the control mechanism, and the control mechanism is fixed to the globe valve body 1 through the installation component 10; An alarm 11 and an alarm lamp 12 are respectively and fixedly installed on one side of the control mechanism, and the alarm 11, the alarm lamp 12, the pressure sensor 4, the flow sensor 5, the temperature sensor 6 and the power component 8 are all electrically connected to the control mechanism.

[0023] A globe valve with a detection and alarm function provided by the present invention, when in use, the pressure sensor 4, the flow sensor 5 and the temperature sensor 6 in the two connecting pipes 2 are used to detect the fluid flowing into and out of the globe valve body 1 in sequence. When the reading detected by the pressure sensor 4 at the liquid outlet end is less than or equal to the reading detected by the pressure sensor 4 at the liquid inlet end, it indicates that there is no leakage in the globe valve body 1. On the contrary, when the reading detected at the liquid outlet end increases relative to the reading at the liquid inlet end, there is a leakage in the globe valve body 1. At the same time, when the flow rate detected by the flow sensor 5 at the liquid outlet end increases significantly compared to the flow rate detected at the liquid inlet end, it may mean that additional fluid enters the system, indicating a leakage. When the pressure sensor 4, the flow sensor 5 and the temperature sensor 6 detect that there is a leakage in the globe valve body 1 or the temperature of the flowing fluid rises or drops abnormally, while the control mechanism controls the alarm 11 and the alarm lamp 12 to issue an alarm, it will also control the power component 8 to drive the driving component 7 to rotate. Then the rotating driving component 7 can drive the valve stem on the globe valve body 1 to descend, so that the globe valve body 1 will automatically close, thereby being able to prevent the dangerous situation from deteriorating further and protecting the safety of equipment and personnel.

[0024] Furthermore, the fixing component 3 includes a hollow tube 31 fixedly installed through the connecting pipe 2. A spiral cap 32 is threadedly connected to the bottom end of the hollow tube 31, and the pressure sensor 4, the flow sensor 5 and the temperature sensor 6 are respectively fixedly installed through the three spiral caps 32.

[0025] Specifically, by manually threadedly connecting the spiral cap 32 to the hollow tube 31, the pressure sensor 4, the flow sensor 5 and the temperature sensor 6 can be quickly and stably installed in the connecting pipe 2 for use. On the contrary, when the spiral cap 32 threadedly connected to the hollow tube 31 is manually unscrewed, it is convenient to replace the damaged pressure sensor 4, flow sensor 5 and temperature sensor 6.

[0026] Furthermore, a rubber sealing ring is fixedly installed on the inner bottom wall of the spiral cap 32, and the top of the rubber sealing ring is in contact with the hollow tube 31.

[0027] Specifically, through the rubber sealing ring, it is beneficial to improve the sealing effect between the hollow tube 31 and the spiral cap 32.

[0028] Further, the control mechanism includes a control housing 9 disposed below the main body 1 of the stop valve. A control module and a wireless communication module are respectively arranged inside the control housing 9, and the wireless communication module, the alarm 11, the warning lamp 12, the pressure sensor 4, the flow sensor 5, the temperature sensor 6, and the power assembly 8 are all electrically connected to the control module.

[0029] Specifically, when the pressure sensor 4, the flow sensor 5, and the temperature sensor 6 detect that there is a leak in the main body 1 of the stop valve or the temperature of the flowing fluid abnormally rises or drops, they transmit the information to the control module. Then, while the control module controls the alarm 11 and the warning lamp 12 to give an alarm, it also controls the power assembly 8 and the wireless communication module. As a result, the power assembly 8 drives the drive assembly 7, causing the main body 1 of the stop valve to automatically close. At the same time, when a leakage problem occurs, the wireless communication module can promptly notify the maintenance personnel for inspection and repair.

[0030] Further, the mounting assembly 10 includes four L-shaped plates 101. The four L-shaped plates 101 are grouped in pairs and are respectively fixedly installed on the front and rear sides of the control housing 9. Two U-shaped bolts 102 are arranged on the outer side wall of the main body 1 of the stop valve. The two ends of the U-shaped bolts 102 respectively pass through the corresponding L-shaped plates 101 and are threadedly connected with second nuts 103.

[0031] Specifically, the U-shaped bolts 102 are manually clamped on the main body 1 of the stop valve, and their ends pass through the L-shaped plates 101 and are then threadedly connected to the second nuts 103, so that the control housing 9 can be stably fixed on the main body 1 of the stop valve for use.

[0032] Further, the drive assembly 7 includes an annular plate 71 sleeved on the valve stem of the main body 1 of the stop valve. A plurality of insertion slots 72 are sequentially formed at the top of the annular plate 71 in a circular array. A cross bar 73 is inserted inside the insertion slots 72. A plurality of strip-shaped slots 74 are sequentially formed on the valve stem of the main body 1 of the stop valve in a circular array, and the other end of the cross bar 73 is inserted into the strip-shaped slots 74.

[0033] Specifically, the power assembly 8 drives the annular plate 71 to rotate. Then, the rotating annular plate 71 drives the cross bar 73 under the action of the insertion slots 72. As a result, the cross bar 73 can drive the valve stem to rotate and descend under the cooperation of the strip-shaped slots 74, so that the main body 1 of the stop valve can automatically close and stop.

[0034] Further, the power assembly 8 includes a motor 81 fixedly installed on the main body 1 of the stop valve through a mounting frame. The output end of the motor 81 penetrates through one side wall of the mounting frame and is fixedly installed with a driving gear 82. A driven gear 83 is fixedly installed on the outer side wall of the annular plate 71, and the driving gear 82 and the driven gear 83 are meshed with each other.

[0035] Specifically, the driving gear 82 is driven by the motor 81 to rotate, and then the rotating driving gear 82 drives the driven gear 83 meshed with it, so that the annular plate 71 can rotate.

[0036] Further, two arc-shaped plates 16 are symmetrically arranged above the annular plate 71. The arc-shaped plates 16 and the annular plate 71 are provided with communicating screw holes, and screws 17 are threadedly connected inside the screw holes.

[0037] Specifically, the screws 17 are threadedly connected into the screw holes manually, so that the arc-shaped plates 16 can be stably fixed on the annular plate 71, thereby preventing the cross rod 73 from disengaging from the insertion slot 72.

[0038] Embodiment 2 Based on Embodiment 1, in this embodiment: a fixed clamp 13 and a fixed bracket 14 are respectively arranged on the outer side wall of the connecting pipe 2, and the fixed clamp 13 and the fixed bracket 14 are arranged opposite to each other up and down. A hexagonal bolt 15 is inserted into the round hole of the fixed clamp 13, and the screw end of the hexagonal bolt 15 passes through the round hole on the fixed bracket 14 and is threadedly connected with a first nut.

[0039] The technical solution provided in this embodiment is: the fixed clamp 13 and the fixed bracket 14 are manually attached to the connecting pipe 2, and then locked by the hexagonal bolt 15 and the first nut, so that the fixed clamp 13 and the fixed bracket 14 can be stably fixed on the connecting pipe 2. Thus, under the action of the fixed clamp 13 and the fixed bracket 14, the fixing effect between the screw cap 32 and the hollow pipe 31 can be improved, and the situation of loosening and leakage of the screw cap 32 during long-term use can be avoided.

[0040] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A globe valve with a detection and alarm function, comprising a globe valve body (1), characterized in that, Both ends of the globe valve body (1) are fixedly installed with connecting pipes (2) through flanges. Three fixing components (3) are provided on each of the two fixing components (3), and a pressure sensor (4), a flow sensor (5), and a temperature sensor (6) are respectively fixedly installed on the three fixing components (3); A driving component (7) is provided on the valve stem of the globe valve body (1). A power component (8) is provided on the globe valve body (1), and the power component (8) is connected to the driving component (7); A control mechanism is provided below the globe valve body (1). An installation component (10) is provided on the control mechanism, and the control mechanism is fixed on the globe valve body (1) through the installation component (10); An alarm (11) and an alarm lamp (12) are respectively fixedly installed on one side of the control mechanism, and the alarm (11), the alarm lamp (12), the pressure sensor (4), the flow sensor (5), the temperature sensor (6), and the power component (8) are all electrically connected to the control mechanism; 2. The globe valve with a detection and alarm function according to claim 1, characterized in that: The fixing component (3) includes a hollow tube (31) fixedly installed through the connecting pipe (2). A spiral cover (32) is threadedly connected to the bottom end of the hollow tube (31), and the pressure sensor (4), the flow sensor (5), and the temperature sensor (6) are respectively fixedly installed through the three spiral covers (32); 3. The globe valve with a detection and alarm function according to claim 2, characterized in that: A rubber sealing ring is fixedly installed on the inner bottom wall of the spiral cover (32), and the top of the rubber sealing ring is in contact with the hollow tube (31); 4. The globe valve with a detection and alarm function according to claim 1, characterized in that: A fixing clip (13) and a fixing bracket (14) are respectively provided on the outer side wall of the connecting pipe (2), and the fixing clip (13) and the fixing bracket (14) are arranged oppositely up and down. A hexagonal bolt (15) is inserted into the circular hole of the fixing clip (13), and the screw end of the hexagonal bolt (15) passes through the circular hole on the fixing bracket (14) and is threadedly connected with a first nut; 5. The globe valve with a detection and alarm function according to claim 1, characterized in that: The control mechanism includes a control shell (9) provided below the globe valve body (1). A control module and a wireless communication module are respectively provided inside the control shell (9), and the wireless communication module, the alarm (11), the alarm lamp (12), the pressure sensor (4), the flow sensor (5), the temperature sensor (6), and the power component (8) are all electrically connected to the control module; 6. The globe valve with a detection and alarm function according to claim 5, wherein: The installation component (10) includes four L-shaped plates (101), and the four L-shaped plates (101) are respectively fixedly installed in two groups on the front and back sides of the control shell (9). Two U-shaped bolts (102) are provided on the outer side wall of the globe valve body (1), and the two ends of the U-shaped bolts (102) respectively pass through the corresponding L-shaped plates (101) and are threadedly connected with second nuts (103).

7. The globe valve with a detection and alarm function according to claim 1, characterized in that: The driving component (7) includes an annular plate (71) sleeved on the valve stem of the globe valve body (1). A plurality of insertion slots (72) are sequentially arranged in a circular array at the top of the annular plate (71). A cross bar (73) is inserted into the inner side of the insertion slot (72). A plurality of strip-shaped slots (74) are sequentially arranged in a circular array on the valve stem of the globe valve body (1), and the other end of the cross bar (73) is inserted into the strip-shaped slot (74).

8. The globe valve with a detection and alarm function according to claim 7, characterized in that: The power component (8) includes a motor (81) fixedly installed on the globe valve body (1) through a mounting bracket. The output end of the motor (81) penetrates through one side wall of the mounting bracket and is fixedly installed with a driving gear (82). A driven gear (83) is fixedly installed on the outer side wall of the annular plate (71), and the driving gear (82) is meshed with the driven gear (83).

9. The globe valve with a detection and alarm function according to claim 8, characterized in that: Two arc-shaped plates (16) are symmetrically arranged above the annular plate (71). The arc-shaped plates (16) and the annular plate (71) are provided with communicating screw holes, and screws (17) are threadedly connected to the inner sides of the screw holes.

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