CN210860668U - Explosion-proof flow controller of gas phase pipeline - Google Patents
Explosion-proof flow controller of gas phase pipeline Download PDFInfo
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- CN210860668U CN210860668U CN201921641562.9U CN201921641562U CN210860668U CN 210860668 U CN210860668 U CN 210860668U CN 201921641562 U CN201921641562 U CN 201921641562U CN 210860668 U CN210860668 U CN 210860668U
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- flow controller
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Abstract
The utility model discloses an explosion-proof flow controller of gas phase pipeline, the mounting panel of placing through the inside level at explosion-proof flow controller casing divides explosion-proof flow controller inner space, the controller passes through the spliced pole to be installed on the mounting panel, it is fixed to make the controller reach, avoided because of the potential safety hazard that rocks and produce, the impulse current that produces in the twinkling of an eye when can cushion explosion-proof flow controller through installation time delay relay on the mounting panel simultaneously, can guarantee the explosion-proof performance of explosion-proof flow controller self more effectively, make explosion-proof flow controller more stable and safe.
Description
Technical Field
The utility model belongs to the technical field of the sensing technique and specifically relates to an explosion-proof flow controller of gas phase pipeline is related to.
Background
The explosion-proof flow controller is widely applied to dangerous environments such as petrochemical industry and the like, can monitor the flow of gas in a pipeline, and can reduce the damage caused by low flow or cutoff to pumps, engines or other equipment by connecting a quantitative loading system, thereby protecting the safety of the operating environment.
At present, most of explosion-proof flow controllers used in inflammable and explosive places such as petroleum, chemical engineering, electric power, metallurgy and the like have good safety performance, but the impact current generated when the circuit of the explosion-proof flow controller is opened or closed cannot be buffered, the circuit cannot be protected, the circuit is easily damaged, sparks are formed, and the safety is influenced. In addition, the explosion-proof flow controller on the market is simple in internal installation, the controller is simply clamped in the groove of the shell of the explosion-proof flow controller, the controller is not firm enough, the controller shakes during transportation and installation, the controller easily falls off or rotates in the groove, lines connected with the explosion-proof flow controller are easily wound together, the connection part of the lines and the controller is loosened and falls off, and potential safety hazards are caused.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide an explosion-proof flow controller with time delay relay, through the impulse current that produces in the twinkling of an eye when time delay relay can cushion explosion-proof flow controller and break and close, can guarantee explosion-proof flow controller self's explosion-proof performance more effectively, simultaneously through the mounting panel of placing at the inside level of explosion-proof flow controller casing with explosion-proof flow controller inner space division, the controller passes through the spliced pole and installs on the mounting panel, make the controller reach fixedly, avoided because of rocking the potential safety hazard that produces.
The above object of the present invention is achieved by the following technical solutions:
an explosion-proof flow controller of a gas phase pipeline comprises a shell, a controller, a flow sensor and a time delay relay;
the shell comprises a shell body, a connecting rod, an upper cover and a cable pressing head, wherein the shell body is cylindrical, a conduit extends outwards from the right side of the shell body, the cable pressing head is in threaded connection with an outlet of the conduit, the upper cover is in threaded connection with the top of the shell body, the bottom of the shell body is communicated with the connecting rod which is communicated up and down, the top of the connecting rod is fixedly provided with a locking block, and the flow sensor is installed inside the connecting rod;
the mounting plate is horizontally placed in the shell, a square hole is formed in the middle of the mounting plate, threaded holes are formed in the outer sides of four corners of the square hole, each threaded hole is in threaded connection with a connecting column, the controller is fixed above the square hole through the connecting column, and a delay relay is installed on the mounting plate;
the controller is supplied with power by an external power frequency power supply, the signal output end of the flow sensor is connected with the signal input end of the controller, and the signal output end of the controller is connected with the signal input end of the delay relay.
The preferred scheme is as follows:
preferably: the size of the bottom opening of the connecting rod is consistent with that of a probe of the flow sensor, and high-temperature-resistant insulating glue is filled in the connecting rod. For preventing that flow sensor from droing in the connecting rod, so the size of connecting rod bottom opening size and flow sensor's probe is unanimous, and the inside packing of connecting rod has high temperature resistant insulating cement, with the fixed sealing of the circuit that flow sensor, flow sensor and controller are connected in the connecting rod, increases the degree of accuracy of the temperature that flow sensor detected.
Preferably: the outer surface of the connecting rod is provided with an external thread, and the external thread is a sealing pipe thread. The connecting rod surface is equipped with the external screw thread, is for more convenient installation on the gas phase pipeline, and the external screw thread is established to sealed pipe thread then because sealed pipe thread has better sealing performance simultaneously.
Preferably: the shell and the connecting rod are integrally formed. The sealing performance of the anti-explosion flow controller can be better embodied by integral forming, and moisture or corrosive gas in the air is prevented from permeating into the anti-explosion flow controller through the connecting part.
Preferably: the side edge of the upper cover is provided with a plurality of anti-skid bulges. The anti-slip protrusions help the hand grip the upper cover when the upper cover is fixed.
Preferably: the mounting plate is provided with a T-shaped block, and the delay relay is clamped on the T-shaped block. The T-shaped block can facilitate the installation of the time delay relay and shorten the installation time.
Preferably: the flow sensor is provided with two probes. Two probes of the flow sensor, one for detecting temperature and the other for detecting temperature and are themselves heated.
Preferably: the locking block and the connecting rod are integrally formed, the locking block is a regular hexagonal prism, and the height of the locking block is one sixth of the height of the connecting rod. The latch segment has the fastness with connecting rod integrated into one piece more, when the installation is locked, is difficult to drop, and the latch segment is established to regular hexagonal prism, then uses the spanner when conveniently being connected explosion-proof flow controller and gas phase pipeline.
To sum up, the utility model discloses application scope is wide, utilizes the circuit among the explosion-proof flow controller of protection that time delay relay can be better, utilizes the mounting panel fully to divide the inside space of explosion-proof flow controller simultaneously, has fixed the controller, has ensured the inside safety of explosion-proof flow controller, explosion-proof flow controller of utilization that can be abundant.
Drawings
Fig. 1 is an external structure view of the present invention.
Fig. 2 is an internal structure diagram of the present invention.
Fig. 3 is a sectional view taken along the direction D-D in fig. 1.
The sequence numbers in the figures illustrate: 1, a shell, a 111 shell, a 112 connecting rod, a 113 upper cover, a 114 cable pressing head, a 115 mounting plate, 116 high-temperature-resistant insulating glue, 117 conduits, 118 time-delay relays, 119 controllers, 120 flow sensors, 121 probes, 122 locking blocks, 123 connecting columns and 124T-shaped blocks.
Detailed Description
The following description of the embodiments of the present invention will be made with reference to the accompanying drawings.
According to fig. 1-3, the explosion-proof flow controller of a gas phase pipeline in this embodiment includes a housing 1, a controller 119, a flow sensor 120, and a delay relay 118, where the housing includes a casing 111, a connecting rod 112, an upper cover 113 and a cable pressing head 114, the casing 111 is cylindrical, the top of the casing 111 is screwed to the upper cover 113, the side of the upper cover 113 is provided with a plurality of anti-slip protrusions to facilitate easy grasping by a hand when the upper cover 113 is installed, a conduit 117 extending outward from the left side of the casing 111 to facilitate the connection of the explosion-proof flow controller to a lead, an outlet of the conduit 117 is screwed to the cable pressing head 114, the cable pressing head 114 can fix the lead and can perform a sealing function, the connecting rod 112 is disposed at the bottom of the casing 111, the casing 111 and the connecting rod 112 are integrally formed for a better sealing effect, and meanwhile, the external thread of the, when being connected with the gas phase pipeline, prevented the gas leakage in the gas phase pipeline, connecting rod 112 top is equipped with latch segment 122, conveniently installs explosion-proof flow controller in the gas phase pipeline, and the positive hexagonal prism of latch segment 122 is one sixth of connecting rod 112 height.
Connecting rod 112 link up from top to bottom, the internally mounted of connecting rod 112 has flow sensor 120, the bottom opening of connecting rod 112 is unanimous with flow sensor 120's probe 121's size, flow sensor 120 has been prevented from droing from connecting rod 112, flow sensor 120 is equipped with two probes 121 altogether, one detects the temperature, another detects the temperature and self is heated, connecting rod 112 is inside to be filled with high temperature resistant insulating cement 116, the fixed sealing of circuit that is connected flow sensor 120 and controller 119 is in connecting rod 112, the accuracy of the temperature that flow sensor 120 detected has been increased.
The working principle of the explosion-proof flow controller of the gas phase pipeline is as follows: a round hole is formed in a gas phase pipeline, a short joint is welded on the round hole, then an explosion-proof flow controller is screwed on the short joint through a connecting rod 112, the explosion-proof flow controller is linked with a quantitative loading controller, a power supply is switched on, at the moment, a signal sent by a flow sensor 120 and received by a controller 119 is that the temperature difference between two probes 121 is the largest, gas is introduced into the gas phase pipeline, the flow velocity of the gas is changed from small to large, the temperature difference is changed from small to small if the flow velocity of the gas is changed from large to large, the temperature difference is changed from large to small if the flow velocity of the gas is changed from small to small, the temperature difference is unchanged if the flow velocity of the gas is kept constant, the controller 119 receives a signal sent by the flow sensor 120 and compares the signal with a set value, when the temperature difference is higher than or lower than the set value, the controller 119 sends a, meanwhile, under the action of the delay relay 118, after a period of time, the delay relay 118 is switched off, and the protection circuit is not impacted by suddenly switched-off current.
The specific parameters of the explosion-proof flow controller described in this embodiment are as follows:
(1) power supply: DC24V + -15%/100 mA
(2) Temperature of the medium: 40 ℃ below zero to 80 DEG C
(3) Relative humidity: 5 to 95 percent
(4) Nominal pressure: 0 to 3MPa
(5) Gas flow rate: 0 to 30m/S, 0.01 to 10m/S liquid
(6) Protection grade: IP65
(7) Explosion-proof certificate number: CNEx18.5673
(8) Contact capacity: AC220V/1A, DC24V/2.5A
(9) Power-on stabilization time: less than or equal to 3 minutes
(10) Electrical interface: m20 x 1.5
(11) The fixing mode is as follows: screw threads ZG3/4, NPT1/2, M26 x 1.5
(12) Explosion-proof grade: exd II BT4
Although specific embodiments of the present invention have been described above, it will be appreciated by those skilled in the art that these are merely illustrative and that various changes or modifications may be made without departing from the spirit and scope of the invention. The scope of the present invention is limited only by the appended claims.
Claims (8)
1. An explosion-proof flow controller of gas phase pipeline which characterized in that: the device comprises a shell (1), a controller (119), a flow sensor (120) and a time delay relay (118);
the shell (1) comprises a shell (111), a connecting rod (112), an upper cover (113) and a cable pressing head (114), wherein the shell (111) is cylindrical, a conduit (117) extends outwards from the right side of the shell (111), the cable pressing head (114) is in threaded connection with an outlet of the conduit (117), the upper cover (113) is in threaded connection with the top of the shell (111), the bottom of the shell (111) is communicated with the connecting rod (112) which penetrates up and down, a locking block (122) is fixedly arranged at the top of the connecting rod, and the flow sensor (120) is installed inside the connecting rod (112);
a mounting plate (115) is horizontally placed in the shell (111), a square hole is formed in the middle of the mounting plate (115), threaded holes are formed in the outer sides of four corners of the square hole, each threaded hole is in threaded connection with a connecting column (123), the controller (119) is fixed above the square hole through the connecting column (123), and a delay relay (118) is installed on the mounting plate;
the controller (119) is powered by an external power frequency power supply, the signal output end of the flow sensor (120) is connected with the signal input end of the controller (119), and the signal output end of the controller (119) is connected with the signal input end of the delay relay (118).
2. The explosion-proof flow controller of a gas phase pipeline according to claim 1, wherein: the size of the bottom opening of the connecting rod (112) is consistent with that of a probe (121) of the flow sensor (120), and high-temperature-resistant insulating glue (116) is filled in the connecting rod (112).
3. The explosion-proof flow controller of a gas phase pipeline according to claim 1, wherein: the outer surface of the connecting rod (112) is provided with an external thread, and the external thread is a sealing pipe thread.
4. The explosion-proof flow controller of a gas phase pipeline according to claim 1, wherein: the shell (111) and the connecting rod (112) are integrally formed.
5. The explosion-proof flow controller of a gas phase pipeline according to claim 1, wherein: the side of the upper cover (113) is provided with a plurality of anti-skid bulges.
6. The explosion-proof flow controller of a gas phase pipeline according to claim 1, wherein: the mounting plate (115) is provided with a T-shaped block (124), and the delay relay (118) is clamped on the T-shaped block (124).
7. The explosion-proof flow controller of a gas phase pipeline according to claim 2, characterized in that: the flow sensor (120) is provided with 2 probes (121).
8. The explosion-proof flow controller of a gas phase pipeline according to claim 1, wherein: the locking block (122) and the connecting rod (112) are integrally formed, the locking block (122) is a regular hexagonal prism, and the height of the locking block (122) is one sixth of the height of the connecting rod (112).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921641562.9U CN210860668U (en) | 2019-09-27 | 2019-09-27 | Explosion-proof flow controller of gas phase pipeline |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921641562.9U CN210860668U (en) | 2019-09-27 | 2019-09-27 | Explosion-proof flow controller of gas phase pipeline |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210860668U true CN210860668U (en) | 2020-06-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921641562.9U Active CN210860668U (en) | 2019-09-27 | 2019-09-27 | Explosion-proof flow controller of gas phase pipeline |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210860668U (en) |
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2019
- 2019-09-27 CN CN201921641562.9U patent/CN210860668U/en active Active
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