Gravity type gate valve with emergency quick closing function

Abstract

The utility model relates to the technical field of gravity type gate valves, and discloses a gravity type gate valve with an emergency quick closing function, which comprises a gravity type gate valve main body, flow channels are fixedly assembled on the outer walls of the two sides of the gravity type gate valve main body, and a sealing performance detection assembly is arranged at the top of each flow channel. One end of a lower sealing seat is installed at the top of the gravity type gate valve body, one end of a sealing gasket is installed at the other end of the lower sealing seat, an upper sealing seat is installed at the other end of the sealing gasket, and a valve deck is installed at the top of the upper sealing seat. When an emergency situation is sensed through a power supply, a signal can be transmitted to cut off current, so that a magnetic field around an armature disappears, an iron core in an inner cavity of a magnetic induction coil loses magnetism, the armature is not attracted any more, the armature and the magnetic induction coil can be separated, at the moment, an installation column can fall into a valve seat in the inner wall of a gravity type gate valve body, and the gravity type gate valve is installed. Therefore, the purpose of quick closing can be achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of gravity gate valves, in particular to a gravity gate valve with an emergency quick closing function. Background Art

[0002] The rapid closing principle of the gravity gate valve is to use gravity to accelerate the movement of the gate so that it can quickly seal with the valve seat, thereby cutting off the flow of fluid and ensuring that the valve can be quickly closed in an emergency to prevent or reduce fluid leakage or other safety risks.

[0003] The existing gravity gate valve with emergency quick closing function relies on gravity, and the opening and closing speed of the gravity gate valve is relatively slow, which limits its use occasions and cannot achieve the function of quick closing in an emergency. At the same time, during the opening and closing process, the movement of the gate may cause pressure fluctuations of the fluid in the pipeline, making the sealing performance unable to be guaranteed, and there is an urgent need to improve this. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a gravity gate valve with an emergency quick closing function, which solves the problems raised by the above-mentioned background technology.

[0005] The utility model provides the following technical solutions: a gravity gate valve with an emergency quick closing function, comprising a gravity gate valve body, both side outer walls of the gravity gate valve body are fixedly equipped with flow channels, the top of the flow channel is provided with a sealing detection component, the top of the gravity gate valve body is installed with one end of a lower sealing seat, the other end of the lower sealing seat is installed with one end of a sealing gasket, the other end of the sealing gasket is installed with an upper sealing seat, the top of the upper sealing seat is installed with a valve cover, and the inner wall of the gravity gate valve body is provided with an emergency quick closing component.

[0006] As a preferred technical solution of the utility model, a balance bar is fixedly installed on the top of the valve cover, a connecting piece is fixedly installed on the outer wall of the balance bar, a hand wheel is rotatably connected to the top of the connecting piece, a power supply is fixedly installed on the outer wall of the connecting piece, mounting bolts are provided on the outer wall of the emergency quick closing assembly, and movable bolts are installed on the top of the lower sealing seat, the sealing gasket and the upper sealing seat.

[0007] As a preferred technical solution of the utility model, the sealing detection component includes a pressure column, the top of which is fixedly equipped with an alarm, and the inner wall of the pressure column is respectively installed with a subtympanic membrane and an suptympanic membrane.

[0008] As a preferred technical solution of the utility model, there are two groups of sealing detection components, and the two groups of sealing detection components are symmetrically distributed at the top of the flow channel, the bottom of the air pressure column is connected to the top of the flow channel, the inner cavity under and above the eardrum is inlaid with electrode chips, and the electrode chip is electrically connected to the alarm.

[0009] As a preferred technical solution of the utility model, the emergency quick closing assembly includes a valve stem, a connecting column is fixedly installed at the bottom of the valve stem, a groove is opened at the bottom of the connecting column, an armature is inlaid at the top of the inner wall of the groove, a magnetic induction coil is provided at the bottom of the armature, one end of the mounting column is fixedly installed at the bottom of the magnetic induction coil, a gate plate is fixedly installed at the other end of the mounting column, and a sealing sleeve is sleeved on the outer wall of the gate plate.

[0010] As a preferred technical solution of the utility model, the armature is electrically connected to the power supply, the inner cavity of the magnetic induction coil is embedded with an iron core, and the iron core is made of soft iron, and the projection area of ​​the groove is adapted to the projection area of ​​the magnetic induction coil.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] 1. The gravity gate valve with emergency quick closing function will send a signal to cut off the current when the power supply senses an emergency situation, so that the magnetic field around the armature disappears, so that the iron core in the inner cavity of the magnetic induction coil loses its magnetism, and the armature is no longer attracted, so that the armature and the magnetic induction coil can be separated. At this time, the mounting column can fall into the valve seat in the inner wall of the gravity gate valve body, so as to achieve the purpose of quick closing.

[0013] 2. The gravity gate valve with emergency quick closing function can transmit the air pressure on the inner wall of the gravity gate valve body to the inner wall of the air pressure column through the flow channel when the pressure changes on the inner wall of the gravity gate valve body, thereby causing deformation under the eardrum and making the top under the eardrum contact with the bottom on the eardrum, so that the electrode chip contacts. At this time, current passes, causing the alarm to emit a signal, which can serve as a warning, facilitates rapid processing, and improves the practicability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the other side of the utility model;

[0016] Figure 3 This is a schematic diagram of the cross-sectional structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the sealing detection component of the utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the emergency quick closing component of the utility model.

[0019] In the figure: 1. Gravity gate valve body; 2. Flow channel; 3. Sealing detection assembly; 4. Lower sealing seat; 5. Sealing gasket; 6. Upper sealing seat; 7. Valve cover; 8. Emergency quick closing assembly; 9. Balance bar; 10. Connector; 11. Hand wheel; 12. Power supply; 13. Mounting bolts; 14. Swivel bolts;

[0020] 301, air pressure column; 302, alarm; 303, below the tympanic membrane; 304, above the tympanic membrane;

[0021] 801, valve stem; 802, connecting column; 803, groove; 804, armature; 805, magnetic induction coil; 806, mounting column; 807, gate; 808, sealing sleeve. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1 - Figure 5 A gravity gate valve with an emergency quick closing function comprises a gravity gate valve body 1, flow channels 2 are fixedly mounted on both sides of the outer wall of the gravity gate valve body 1, a sealing detection component 3 is arranged on the top of the flow channel 2, one end of a lower sealing seat 4 is mounted on the top of the gravity gate valve body 1, one end of a sealing gasket 5 is mounted on the other end of the lower sealing seat 4, an upper sealing seat 6 is mounted on the other end of the sealing gasket 5, a valve cover 7 is mounted on the top of the upper sealing seat 6, and an emergency quick closing component 8 is arranged on the inner wall of the gravity gate valve body 1;

[0024] By utilizing the above structure, the sealing performance of the device can be effectively guaranteed through the arrangement of the lower sealing seat 4, the sealing gasket 5 and the upper sealing seat 6. Furthermore, the seal between the gate plate 807 and the valve seat is usually made of polytetrafluoroethylene, thereby ensuring effective sealing when the gate plate 807 descends rapidly.

[0025] In a preferred embodiment, a balancing rod 9 is fixedly mounted on the top of the valve cover 7, a connecting piece 10 is fixedly mounted on the outer wall of the balancing rod 9, a hand wheel 11 is rotatably connected to the top of the connecting piece 10, a power supply 12 is fixedly mounted on the outer wall of the connecting piece 10, a mounting bolt 13 is provided on the outer wall of the emergency quick closing assembly 8, and a movable bolt 14 is installed on the top of the lower sealing seat 4, the sealing gasket 5 and the upper sealing seat 6;

[0026] By utilizing the above structure and by providing the hand wheel 11, the device can be equipped with a manual operating device so that quick closing can be manually triggered when necessary.

[0027] In a preferred embodiment, the sealing detection component 3 includes a pressure column 301, the top of the pressure column 301 is fixedly equipped with an alarm 302, and the inner wall of the pressure column 301 is respectively installed with a subtympanic membrane 303 and an upper tympanic membrane 304;

[0028] In a preferred embodiment, there are two groups of sealing detection components 3, and the two groups of sealing detection components 3 are symmetrically distributed on the top of the flow channel 2, the bottom of the air pressure column 301 is connected with the top of the flow channel 2, and the inner cavities below the eardrum 303 and above the eardrum 304 are both inlaid with electrode chips, and the electrode chips are electrically connected to the alarm 302;

[0029] By utilizing the above structure, the air pressure value of the inner wall of the gravity gate valve body 1 under normal conditions is in a limited state. When the pressure on the inner wall of the gravity gate valve body 1 changes, the air pressure on the inner wall of the gravity gate valve body 1 can be transmitted to the inner wall of the air pressure column 301 through the flow channel 2, thereby deforming the subtympanic membrane 303 and making the top of the subtympanic membrane 303 contact the bottom of the tympanic membrane 304, thereby making the electrode chip contact. At this time, current passes, causing the alarm 302 to emit a signal, thereby serving as a warning.

[0030] In a preferred embodiment, the emergency quick closing assembly 8 includes a valve stem 801, a connecting column 802 is fixedly mounted at the bottom of the valve stem 801, a groove 803 is provided at the bottom of the connecting column 802, an armature 804 is inlaid at the top of the inner wall of the groove 803, a magnetic induction coil 805 is provided at the bottom of the armature 804, one end of a mounting column 806 is fixedly mounted at the bottom of the magnetic induction coil 805, a gate 807 is fixedly mounted at the other end of the mounting column 806, and a sealing sleeve 808 is sleeved on the outer wall of the gate 807;

[0031] In a preferred embodiment, the armature 804 is electrically connected to the power source 12, the inner cavity of the magnetic induction coil 805 is inlaid with an iron core, and the iron core is made of soft iron, and the projection area of ​​the groove 803 is adapted to the projection area of ​​the magnetic induction coil 805;

[0032] By utilizing the above structure, through the characteristics that the inner cavity of the magnetic induction coil 805 is embedded with an iron core, and the iron core is made of soft iron, it can be known that the magnetic induction coil 805 can be easily magnetized and demagnetized. When the power supply 12 senses an emergency situation, it will emit a signal to cut off the current, thereby eliminating the magnetic field around the armature 804, so that the iron core in the inner cavity of the magnetic induction coil 805 loses its magnetism, and the armature 804 is no longer attracted, so that the armature 804 can be separated from the magnetic induction coil 805, thereby achieving the function of quick closing.

[0033] Working principle: When the device is used, when the valve needs to be opened, the hand wheel 11 can be turned to make the gate 807 move upward to overcome gravity, so that the fluid channel of the inner wall of the gravity gate valve body 1 is in an open state, thereby allowing the fluid to pass through. When the power supply 12 senses an emergency situation, it will emit a signal to cut off the current, so that the magnetic field around the armature 804 disappears, so that the iron core in the inner cavity of the magnetic induction coil 805 loses its magnetism, and the armature 804 is no longer attracted, so that the armature 804 and the magnetic induction coil 805 can be separated, and the gate 807 can be lowered by itself under the action of gravity until it is in close contact with the valve seat, thereby cutting off the flow of fluid. Because the seal between the gate 807 and the valve seat is made of polytetrafluoroethylene, it can ensure that effective sealing can be achieved when the gate 807 descends to prevent fluid leakage, and the device can achieve the purpose of emergency rapid closure.

[0034] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A gravity gate valve with an emergency quick closing function, comprising a gravity gate valve body (1), characterized in that: The outer walls of both sides of the gravity gate valve body (1) are fixedly mounted with flow channels (2), the top of the flow channel (2) is provided with a sealing detection component (3), the top of the gravity gate valve body (1) is provided with one end of a lower sealing seat (4), the other end of the lower sealing seat (4) is provided with one end of a sealing gasket (5), the other end of the sealing gasket (5) is provided with an upper sealing seat (6), the top of the upper sealing seat (6) is provided with a valve cover (7), and the inner wall of the gravity gate valve body (1) is provided with an emergency quick closing component (8).

2. A gravity gate valve with emergency quick closing function according to claim 1, characterized in that: A balance bar (9) is fixedly mounted on the top of the valve cover (7), a connecting piece (10) is fixedly mounted on the outer wall of the balance bar (9), a hand wheel (11) is rotatably connected to the top of the connecting piece (10), a power source (12) is fixedly mounted on the outer wall of the connecting piece (10), mounting bolts (13) are provided on the outer wall of the emergency quick closing assembly (8), and movable bolts (14) are mounted on the top of the lower sealing seat (4), the sealing gasket (5) and the upper sealing seat (6).

3. The gravity gate valve with emergency quick closing function according to claim 1 is characterized in that: The sealing detection component (3) comprises an air pressure column (301), the top of which is fixedly equipped with an alarm (302), and the inner wall of the air pressure column (301) is respectively equipped with a subtympanic membrane (303) and an supratympanic membrane (304).

4. A gravity gate valve with emergency rapid closing function according to claim 3, characterized in that: There are two groups of the sealing detection components (3), and the two groups of sealing detection components (3) are symmetrically distributed at the top of the flow channel (2). The bottom of the air pressure column (301) is connected to the top of the flow channel (2). The inner cavities under the eardrum (303) and above the eardrum (304) are both inlaid with electrode chips, and the electrode chips are electrically connected to the alarm (302).

5. The gravity gate valve with emergency quick closing function according to claim 1 is characterized in that: The emergency quick closing assembly (8) comprises a valve stem (801), a connecting column (802) being fixedly mounted at the bottom of the valve stem (801), a groove (803) being provided at the bottom of the connecting column (802), an armature (804) being inlaid at the top of the inner wall of the groove (803), a magnetic induction coil (805) being provided at the bottom of the armature (804), one end of a mounting column (806) being fixedly mounted at the bottom of the magnetic induction coil (805), a gate plate (807) being fixedly mounted at the other end of the mounting column (806), and a sealing sleeve (808) being sleeved on the outer wall of the gate plate (807).

6. A gravity gate valve with emergency rapid closing function according to claim 5, characterized in that: The armature (804) is electrically connected to the power supply (12); the inner cavity of the magnetic induction coil (805) is inlaid with an iron core, and the iron core is made of soft iron; the projection area of ​​the groove (803) is compatible with the projection area of ​​the magnetic induction coil (805).

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