CN216385854U - Flame-proof thermal difference type flow switch - Google Patents
Flame-proof thermal difference type flow switch Download PDFInfo
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- CN216385854U CN216385854U CN202122350957.7U CN202122350957U CN216385854U CN 216385854 U CN216385854 U CN 216385854U CN 202122350957 U CN202122350957 U CN 202122350957U CN 216385854 U CN216385854 U CN 216385854U
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Abstract
The utility model discloses a flame-proof thermal difference type flow switch, and particularly relates to the technical field of flame-proof flow switches. The utility model is provided with the heat-sensitive sensor and the heating sensor, the heating sensor emits constant heat, the heat-sensitive sensor monitors the temperature in the measuring box, the instrument panel displays the flow velocity of the flow, the box door is arranged, the sealing ring is arranged between the box door and the measuring box, the flow is prevented from flowing out through a gap between the measuring box and the box door, the hasp is opened to remove the fixation between the box door and the measuring box, the operation is simple, the overhaul is convenient, and the measuring precision is high.
Description
Technical Field
The utility model belongs to the technical field of explosion-proof flow switches, and particularly relates to an explosion-proof thermal difference type flow switch.
Background
The explosion-proof flow switch can be divided into a mechanical flow switch, a thermal flow switch and the like according to different principles, and the explosion-proof flow switch with any principle can be applied to dangerous occasions requiring intrinsic safety or explosion prevention and is used for automatically protecting equipment and a pipeline system from being damaged by flow reduction or current interruption. The explosion-proof flow switch can be widely applied to dangerous working condition environments such as petrochemical industry and the like, can protect a pump, an engine or other equipment from being damaged by low flow or cut-off, can be sequentially operated by the equipment such as the pump and the like, can automatically start an auxiliary pump and the engine, and can immediately control to stop the work of cooling the engine when a cooling system breaks down.
The inner structure such as current flame proof flow switch measurement piece generally is located surveys intraduct inside buret, when inner structure such as measurement piece appears damaging, inner structure such as inconvenient maintenance measurement piece influences measuring precision.
SUMMERY OF THE UTILITY MODEL
The utility model provides an explosion-proof thermal difference type flow switch, and aims to solve the problem that when internal structures such as a measuring sheet are damaged, the internal structures such as the measuring sheet are inconvenient to overhaul, and the accuracy of measurement is influenced.
The utility model is realized in such a way, and provides the following technical scheme: an explosion-proof thermal difference type flow switch comprises a measuring box, the top of the measuring box is provided with an instrument panel, the instrument panel is connected with the measuring box, guide pipes are arranged on two sides of the measuring box, the two guide pipes are connected with the measuring box, the measuring box is internally provided with a heat-sensitive sensor and a heating sensor which are connected with the top end inside the measuring box, the bottom parts of the heat-sensitive sensor and the heating sensor are provided with measuring sheets, one side of each measuring sheet is provided with a fixing plate, the fixed plate is connected with the measuring piece, the bottom of the fixed plate is provided with a slide bar, the peripheral surface of the slide bar is movably sleeved with a slide block, one side of the slide block is provided with a second spring, the second spring is connected with the slide block, and the second spring is movably sleeved on the peripheral surface of the sliding rod, a box door is arranged on the front side of the measuring box, and the box door and the measuring box are locked through a hasp.
In a preferred embodiment, a connecting plate is arranged between the fixed plate and the slide block, the top end of the connecting plate is connected with the bottom end of the fixed plate, and the bottom end of the connecting plate is connected with the top end of the slide block.
In a preferred embodiment, vertical plates are arranged on two sides of the sliding rod, one opposite ends of the two vertical plates are connected with the sliding rod, the front end and the rear end of each vertical plate are connected with the measuring box, and one end, far away from the sliding block, of the second spring is connected with one vertical plate.
In a preferred embodiment, a transverse plate is arranged on one side of the fixed plate, and the front end and the rear end of the transverse plate are both connected with the measuring box.
In a preferred embodiment, an alarm is arranged between the transverse plate and the fixing plate, and the alarm is connected with the transverse plate.
In a preferred embodiment, a top rod is arranged between the alarm and the fixing plate, and the top rod is connected with the fixing plate.
In a preferred embodiment, four protection pads are arranged on the outer peripheral surface of the measurement box, a plurality of first springs are arranged between the four protection pads and the measurement box, and two ends of the plurality of first springs are respectively connected with the measurement box and the protection pads at corresponding positions.
Compared with the prior art, the utility model has the beneficial effects that:
1. the heat sensing sensor and the heating sensor are arranged, the heating sensor emits constant heat, the heat sensing sensor monitors the temperature in the measuring box, the flow enters the measuring box through the guide pipe, so that the temperature in the measuring box is influenced, the temperature in the measuring box changes along with the change of the flow velocity of the flow, the heat sensing sensor is electrically connected with the instrument panel, so that the heat sensing sensor transmits an electric signal to the instrument panel, the instrument panel receives the electric signal to start working and display the flow velocity of the flow, the flow velocity of the flow is monitored, the box door is arranged, a sealing ring is arranged between the box door and the measuring box, the flow is prevented from flowing out through a gap between the measuring box and the box door, the hasp is opened to release the fixation between the box door and the measuring box, the operation is simple, the overhaul is convenient, and the measuring precision is high;
2. through setting up the measuring chip, the flow gets into and can drive the measuring chip removal in the measuring box, because the measuring chip is connected with the fixed plate, the event measures the piece and drives fixed plate horizontal migration, because the fixed plate is connected with the connecting plate, the event fixed plate drives connecting plate horizontal migration, because the connecting plate is connected with the slider, slider movable sleeve establishes at the slide bar outer peripheral face, the event connecting plate drives slider horizontal migration on the slide bar, thereby drive the extension of second spring, the fixed plate is connected with the ejector pin simultaneously, the event fixed plate drives ejector pin horizontal migration, ejector pin and siren contact when the velocity of flow is too fast, the siren sounds, double alarm, the security performance is high.
Drawings
Fig. 1 is a perspective view of the overall structure of the present invention.
Fig. 2 is a partially assembled perspective view of the measuring chamber and the fixed plate of the present invention.
Fig. 3 is a partially assembled side view of the measuring chamber and the fixed plate according to the utility model.
FIG. 4 is a perspective view of the slide bar and gauge piece assembly of the present invention.
In the figure: the device comprises a measuring box 1, an instrument panel 2, a protection pad 3, a guide pipe 4, a box door 5, a first spring 6, a top rod 7, a fixing plate 8, a measuring sheet 9, a second spring 10, a connecting plate 11, a sliding rod 12, a transverse plate 13, a vertical plate 14, a sliding block 15, a heat-sensitive sensor, a heat-generating sensor 16 and an alarm 17.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.
In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus, are not to be construed as limiting the present invention. Further, in the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The flameproof thermal difference type flow switch shown in the attached figures 1-4 comprises a measuring box 1, wherein the top of the measuring box 1 is provided with an instrument panel 2, the instrument panel 2 displays the flow velocity of flow and monitors the flow velocity of the flow, the instrument panel 2 is connected with the measuring box 1, two sides of the measuring box 1 are respectively provided with a conduit 4, the flow enters the measuring box 1 through the conduit 4, the two conduits 4 are respectively connected with the measuring box 1, a heat sensor and a heating sensor 16 are arranged inside the measuring box 1, the heating sensor emits constant heat, the heat sensor monitors the temperature in the measuring box 1, the heat sensor and the heating sensor 16 are connected with the top end inside the measuring box 1, the bottom of the heat sensor and the heating sensor 16 is provided with a measuring sheet 9, the measuring sheet 9 drives a fixing plate 8 to move horizontally, one side of the measuring sheet 9 is provided with a fixing plate 8, the fixing plate 8 drives an ejector rod 7 and a connecting plate 11 to move horizontally, the fixed plate 8 is connected with the measuring sheet 9, a slide rod 12 is arranged at the bottom of the fixed plate 8, a slide block 15 is movably sleeved on the outer peripheral surface of the slide rod 12, a connecting plate 11 drives the slide block 15 to horizontally move on the slide rod 12, a second spring 10 is arranged on one side of the slide block 15, meanwhile, when the flow rate of the flow returns to be normal, the second spring 10 contracts to drive the fixed plate 8 to return to the original position, the second spring 10 is connected with the slide block 15, the second spring 10 is movably sleeved on the outer peripheral surface of the slide rod 12, a box door 5 is arranged on the front side of the measuring box 1, the box door 5 and the measuring box 1 are locked through a buckle, the buckle is opened to release the fixation between the box door 5 and the measuring box 1, the operation is simple, the overhaul is convenient, and the measuring precision is high.
As shown in fig. 2-3, a connecting plate 11 is disposed between the fixed plate 8 and the sliding block 15, the connecting plate 11 drives the sliding block 15 to move horizontally on the sliding rod 12, the top end of the connecting plate 11 is connected to the bottom end of the fixed plate 8, and the bottom end of the connecting plate 11 is connected to the top end of the sliding block 15.
As shown in fig. 2-4, vertical plates 14 are disposed on two sides of the sliding rod 12, opposite ends of the two vertical plates 14 are connected to the sliding rod 12, so that the sliding rod 12 can be conveniently fixed, front and rear ends of the two vertical plates 14 are connected to the measuring box 1, and one end of the second spring 10, which is far away from the sliding block 15, is connected to one of the vertical plates 14.
As shown in fig. 2-3, a transverse plate 13 is disposed on one side of the fixing plate 8 for fixing the alarm 17, and the front and rear ends of the transverse plate 13 are connected to the measuring box 1.
As shown in fig. 3, an alarm 17 is provided between the horizontal plate 13 and the fixing plate 8, the alarm 17 gives an alarm sound, and the alarm 17 is connected to the horizontal plate 13.
As shown in fig. 2 and 4, a push rod 7 is arranged between the alarm 17 and the fixing plate 8, when the flow rate of the flow is too high, the push rod 7 is contacted with the alarm 17, and the push rod 7 is connected with the fixing plate 8.
As shown in the attached drawing 1, four protection pads 3 are arranged on the outer peripheral surface of the measurement box 1, a plurality of first springs 6 are arranged between the four protection pads 3 and the measurement box 1, two ends of the first springs 6 are respectively connected with the measurement box 1 and the protection pads 3 at corresponding positions, the protection pads 3 are in contact with the ground, so that the first springs 6 are driven to compress, the impact force is reduced through the compression and rebound of the first springs 6, and the service life of the measurement box 1 is prolonged.
The working principle of the utility model is as follows: the constant heat is emitted by the heating sensor through the arrangement of the heat sensing sensor and the heating sensor 16, the temperature in the measuring box 1 is monitored by the heat sensing sensor, the flow enters the measuring box 1 through the guide pipe 4, so that the temperature in the measuring box 1 is influenced, the temperature in the measuring box 1 changes along with the change of the flow velocity of the flow, the heat sensing sensor is electrically connected with the instrument panel 2, so that the heat sensing sensor transmits an electric signal to the instrument panel 2, the instrument panel 2 receives the electric signal to start working and display the flow velocity of the flow, the flow velocity of the flow is monitored, the box door 5 is arranged, a sealing ring is arranged between the box door 5 and the measuring box 1, the flow is prevented from flowing out through a gap between the measuring box 1 and the box door 5, the hasp is opened to release the fixation between the box door 5 and the measuring box 1, the operation is simple, the overhaul is convenient, and the measuring precision is high;
meanwhile, the flow enters the measuring box 1 to drive the measuring sheet 9 to move, the measuring sheet 9 is connected with the fixed plate 8, the fixed plate 8 is driven by the measuring sheet 9 to horizontally move, the fixed plate 8 is connected with the connecting plate 11, the connecting plate 8 is driven by the fixed plate 8 to horizontally move, the connecting plate 11 is connected with the slide block 15, the slide block 15 is movably sleeved on the outer peripheral surface of the slide rod 12, the connecting plate 11 drives the slide block 15 to horizontally move on the slide rod 12, so that the second spring 10 is driven to extend, meanwhile, the fixed plate 8 is connected with the ejector rod 7, the fixed plate 8 drives the ejector rod 7 to horizontally move, when the flow rate of the flow is too high, the ejector rod 7 is in contact with the alarm 17, the alarm 17 gives out an alarm sound, double alarms, the safety performance is high, and when the flow rate of the flow returns to be normal, the second spring 10 contracts to drive the fixed plate 8 to return to the original position, and the measuring box 1 is protected by arranging the protection pad 3 and the first spring 6, when measuring case 1 drops and when contacting with ground, protection pad 3 and ground contact to drive the compression of first spring 6, reduce the impact force through the compression and the resilience of first spring 6, prolong the life of measuring case 1.
The present invention is not limited to the above preferred embodiments, and any modifications, equivalent substitutions and improvements made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. The utility model provides a flame-proof type thermal difference formula flow switch, includes the measuring box, its characterized in that: the measuring box is characterized in that a meter panel is arranged at the top of the measuring box and connected with the measuring box, guide pipes are arranged on two sides of the measuring box and connected with the measuring box, a heat sensing sensor and a heating sensor are arranged inside the measuring box and connected with the top end inside the measuring box, measuring sheets are arranged at the bottoms of the heat sensing sensor and the heating sensor, a fixing plate is arranged on one side of each measuring sheet and connected with the corresponding measuring sheet, a sliding rod is arranged at the bottom of the fixing plate, a sliding block is movably sleeved on the outer peripheral surface of the sliding rod, a second spring is arranged on one side of the sliding block and connected with the sliding block, a box door is arranged on the front side of the measuring box, and the box door and the measuring box are locked through buckles.
2. The flameproof thermal differential flow switch of claim 1, characterized in that: and a connecting plate is arranged between the fixed plate and the sliding block, the top end of the connecting plate is connected with the bottom end of the fixed plate, and the bottom end of the connecting plate is connected with the top end of the sliding block.
3. The flameproof thermal differential flow switch of claim 1, characterized in that: the two sides of the sliding rod are provided with vertical plates, one ends of the two vertical plates in opposite directions are connected with the sliding rod, the front end and the rear end of each vertical plate are connected with the measuring box, and one end, far away from the sliding block, of the second spring is connected with one vertical plate.
4. The flameproof thermal differential flow switch of claim 1, characterized in that: and a transverse plate is arranged on one side of the fixed plate, and the front end and the rear end of the transverse plate are connected with the measuring box.
5. The flameproof thermal differential flow switch of claim 4, characterized in that: an alarm is arranged between the transverse plate and the fixed plate and connected with the transverse plate.
6. The flameproof thermal differential flow switch of claim 5, characterized in that: and an ejector rod is arranged between the alarm and the fixed plate and is connected with the fixed plate.
7. The flameproof thermal differential flow switch of claim 1, characterized in that: the measuring box is characterized in that four protection pads are arranged on the peripheral surface of the measuring box, a plurality of first springs are arranged between the four protection pads and the measuring box, and two ends of the first springs are respectively connected with the measuring box and the protection pads at corresponding positions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122350957.7U CN216385854U (en) | 2021-09-27 | 2021-09-27 | Flame-proof thermal difference type flow switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122350957.7U CN216385854U (en) | 2021-09-27 | 2021-09-27 | Flame-proof thermal difference type flow switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216385854U true CN216385854U (en) | 2022-04-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122350957.7U Active CN216385854U (en) | 2021-09-27 | 2021-09-27 | Flame-proof thermal difference type flow switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216385854U (en) |
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2021
- 2021-09-27 CN CN202122350957.7U patent/CN216385854U/en active Active
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