CN210108455U - High-sensitivity fire-fighting flow switch - Google Patents
High-sensitivity fire-fighting flow switch Download PDFInfo
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- CN210108455U CN210108455U CN201921368027.0U CN201921368027U CN210108455U CN 210108455 U CN210108455 U CN 210108455U CN 201921368027 U CN201921368027 U CN 201921368027U CN 210108455 U CN210108455 U CN 210108455U
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- heat insulation
- measuring pipeline
- seat
- connecting seat
- insulation seat
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Abstract
The utility model discloses a high-sensitivity fire-fighting flow switch, which comprises an automatic flow detector, a connecting seat and a measuring pipeline, wherein the measuring pipeline is provided with a heat insulation seat which is integrally formed with the measuring pipeline; the automatic flow detector is fixedly arranged at the upper end of the connecting seat; the lower end of the connecting seat is connected with the measuring pipeline through a heat insulation seat; a heat insulation rubber gasket is arranged between the heat insulation seat and the connecting seat; a plurality of radiating fins are arranged on the periphery of the heat insulation seat; the measuring pipeline is provided with a spiral sleeve along the axial direction. The utility model is not limited by the use condition and the pipe diameter, the flow heat is higher, the device in the automatic flow detector can not be damaged, and the service life is prolonged; the detection precision can be improved without the limitation of the pipe diameter by combining the Z-shaped detection track and the U-shaped detection track; in addition, the quartz lens isolates the transducer and the reflecting surface outside the measuring pipeline, so that the inner surface of the measuring pipeline is ensured to be flat, and the measurement precision reduction caused by bubbles or flow rate difference is prevented.
Description
Technical Field
The utility model relates to a fire control flow switch especially relates to a high sensitivity fire control flow switch.
Background
The fire flow switch may be used in air conditioners, hot water space heating systems, pump systems, water cooling equipment, mixing or additive systems, liquid transfer systems, fire sprinkler systems, water treatment systems, swimming pool chlorination and industrial laser coolant systems. Because the application scope of fire control flow switch is wider, therefore the heat range of flow is also not fixed, when using the liquid that the heat is higher or lower, the heat can transmit to flow automatic detector to cause the harm to its inside, reduce life.
The transducers of the common fire-fighting flow switch on the existing market are mainly installed in a Z shape and in a U shape. The Z-shaped installation is suitable for pipelines with thicker pipe diameters, and the U-shaped installation is suitable for pipelines with thinner pipe diameters. However, no matter the transducer is installed in a Z shape or in a U shape, the flow velocity interference caused by the convex transducer cannot be avoided, particularly, the transducer installed in the U shape often needs to be provided with a reflecting surface, the reflecting surface can block liquid flow, the flow velocity between the two reflecting surfaces is reduced, and the measurement of the flow velocity is influenced. On the other hand, the protruding transducer and the reflecting surface tend to cause bubbles in the fluid, further reducing the accuracy of the measurement of the flow velocity.
In sum, the sensitivity of the fire flow switch is reduced due to the reduction of the measurement accuracy of the transducer, so that the fire flow switch is delayed to be turned on or turned off in advance.
SUMMERY OF THE UTILITY MODEL
In order to solve the defects of the prior art, the utility model provides a high-sensitivity fire-fighting flow switch.
In order to solve the technical problem, the utility model discloses a technical scheme is: a high-sensitivity fire-fighting flow switch comprises an automatic flow detector, a connecting seat and a measuring pipeline, wherein a heat insulation seat is arranged on the measuring pipeline, and the heat insulation seat and the measuring pipeline are integrally formed; the automatic flow detector is fixedly arranged at the upper end of the connecting seat; the lower end of the connecting seat is connected with the measuring pipeline through a heat insulation seat; a heat insulation rubber gasket is arranged between the heat insulation seat and the connecting seat; a plurality of radiating fins are arranged on the periphery of the heat insulation seat;
a spiral sleeve is axially arranged on the measuring pipeline; the two spiral sleeves are connected with the energy converter in a threaded manner and are symmetrically arranged on the left side and the right side of the heat insulation seat; the transducer is electrically connected with the connecting seat through a lead; a quartz lens is arranged at the bottom of the spiral sleeve;
a reflection sleeve is arranged on the measuring pipeline pipe body at the opposite side of the spiral sleeve; the number of the reflecting sleeves is two, the two reflecting sleeves correspond to the two spiral sleeves one by one, and inclined plane reflecting mirrors are symmetrically arranged in the two reflecting sleeves; a quartz lens is arranged at the top of the reflecting sleeve; a plane reflector is arranged inside the measuring pipeline; the plane reflector is arranged at the top end of the interior of the measuring pipeline, and the distances between the plane reflector and the two inclined plane reflectors are equal;
the quartz lens is a flat lens, and the inner surface of the quartz lens is flush with the inner surface of the measuring pipeline; the slant angle of the slant mirror is 67.5 °.
Further, the heat insulation seat is connected with the connecting seat through a flange.
Furthermore, the thickness of the quartz lens is 0.1-0.5 cm.
The utility model is not limited by the use condition and the pipe diameter, the flow heat is higher, the device in the automatic flow detector can not be damaged, and the service life is prolonged; the detection precision can be improved without the limitation of the pipe diameter by combining the Z-shaped detection track and the U-shaped detection track; in addition, the quartz lens isolates the transducer and the reflecting surface outside the measuring pipeline, so that the inner surface of the measuring pipeline is ensured to be flat, and the measurement precision reduction caused by bubbles or flow rate difference is prevented, thereby increasing the sensitivity.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Fig. 2 is a partially enlarged view of fig. 1.
In the figure: 1. an automatic flow detector; 2. a connecting seat; 3. measuring a pipeline; 4. a heat insulation seat; 5. a heat insulating rubber gasket; 6. a heat sink; 7. a helical sleeve; 8. a transducer; 9. a wire; 10. a quartz lens; 11. a reflective sleeve; 12. a bevel mirror; 13. a plane mirror.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 and 2 show a high-sensitivity fire flow switch, which includes an automatic flow detector 1, a connecting seat 2 and a measuring pipe 3, wherein the measuring pipe is provided with a heat insulation seat 4, and the heat insulation seat and the measuring pipe are integrally formed; the automatic flow detector is fixedly arranged at the upper end of the connecting seat; the lower end of the connecting seat is connected with the measuring pipeline through a heat insulation seat 4, and the heat insulation seat is connected with the connecting seat through a flange;
a heat insulation rubber gasket 5 is arranged between the heat insulation seat and the connecting seat; a plurality of radiating fins 6 are arranged on the periphery of the heat insulation seat; when the fire control flow switch is applied to the hot water space, need guarantee that the device among the flow automated inspection ware can not receive hot water and influence, consequently is in the utility model discloses in increased the improvement in the aspect of thermal-insulated. The heat insulation seat integrated with the measuring pipeline can be used for fixedly connecting the connecting seat, and in addition, the heat radiating fins are arranged on the outer surface of the heat insulation seat to radiate the heat of hot water in the pipeline, so that the upward transfer of the heat is reduced; and the heat insulation rubber gasket can further prevent heat from being transferred to the automatic flow detector. The utility model can not affect the detector no matter the circulation hot water or the cold water, and the service life of the detector is prolonged.
Compared with the transducer installed in a Z shape in the prior art, the transducer is greatly influenced by the pipe diameter, if the pipe diameter is too small, the measurement precision is not high, and the fire-fighting flow switch can be opened in a delayed mode or closed in advance when being used; likewise, Z-mounted transducers can cause air bubbles or flow rate differences during fluid flow, which can also reduce the accuracy of the fire flow switch and affect its function.
A spiral sleeve 7 is arranged on the measuring pipeline along the axial direction; the two spiral sleeves are connected with the energy converter 8 in a threaded manner and are symmetrically arranged on the left side and the right side of the heat insulation seat; the transducer is electrically connected with the connecting seat through a lead 9; a quartz lens 10 is arranged at the bottom of the spiral sleeve;
a reflection sleeve 11 is arranged on the measuring pipeline pipe body at the opposite side of the spiral sleeve; the number of the reflecting sleeves is two, the two reflecting sleeves correspond to the two spiral sleeves one by one, and the two reflecting sleeves are internally and symmetrically provided with the inclined plane reflecting mirrors 12; a quartz lens is arranged at the top of the reflecting sleeve; a plane reflector 13 is arranged inside the measuring pipeline; the thickness of the quartz lens is 0.1-0.5 cm. The quartz lens isolates the transducer and the reflecting surface outside the test pipe, the quartz lens 10 is a flat lens, and the inner surface of the quartz lens is flush with the inner surface of the measurement pipe; the flatness of the inner surface in the test tube is ensured, no bulge is formed, the generation of bubbles and the flow speed difference are reduced, and the measurement precision is improved. In addition, the thickness of the quartz lens is thin, so that the use of the quartz lens cannot be influenced.
The plane reflector 13 is arranged at the top end of the inner part of the measuring pipeline, and the distances between the plane reflector and the two inclined plane reflectors are equal; the bevel angle of the bevel mirror 12 is 67.5 °. The plane reflector and the inclined reflector extend the detection track of the transducer, and the transducer is not limited by the pipe diameter and has wider application.
Compared with the prior art, the utility model the advantage that has do:
the utility model is not limited by the use condition and the pipe diameter, the flow heat is higher, the device in the automatic flow detector can not be damaged, and the service life is prolonged; the detection precision can be improved without the limitation of the pipe diameter by combining the Z-shaped detection track and the U-shaped detection track; in addition, the quartz lens isolates the transducer and the reflecting surface outside the measuring pipeline, so that the inner surface of the measuring pipeline is ensured to be flat, and the measurement precision reduction caused by bubbles or flow rate difference is prevented, thereby increasing the sensitivity.
The above embodiments are not intended to limit the present invention, and the present invention is not limited to the above examples, and the technical personnel in the technical field are in the present invention, which can also belong to the protection scope of the present invention.
Claims (3)
1. The utility model provides a high sensitivity fire control flow switch, includes flow automatic detector (1), connecting seat (2) and measuring tube (3), its characterized in that: the measuring pipeline is provided with a heat insulation seat (4), and the heat insulation seat and the measuring pipeline are integrally formed; the automatic flow detector is fixedly arranged at the upper end of the connecting seat; the lower end of the connecting seat is connected with the measuring pipeline through a heat insulation seat (4); a heat insulation rubber gasket (5) is arranged between the heat insulation seat and the connecting seat; a plurality of radiating fins (6) are arranged on the periphery of the heat insulation seat;
a spiral sleeve (7) is axially arranged on the measuring pipeline; the two spiral sleeves are connected with the energy converter (8) in a threaded manner and are symmetrically arranged on the left side and the right side of the heat insulation seat; the transducer is electrically connected with the connecting seat through a lead (9); a quartz lens (10) is arranged at the bottom of the spiral sleeve;
a reflection sleeve (11) is arranged on the measuring pipeline pipe body at the opposite side of the spiral sleeve; the number of the reflecting sleeves is two, the two reflecting sleeves correspond to the two spiral sleeves one by one, and inclined plane reflecting mirrors (12) are symmetrically arranged in the two reflecting sleeves; a quartz lens is arranged at the top of the reflecting sleeve; a plane reflector (13) is arranged inside the measuring pipeline; the plane reflector (13) is arranged at the top end of the interior of the measuring pipeline, and the distances between the plane reflector and the two inclined plane reflectors are equal;
the quartz lens (10) is a flat lens, and the inner surface of the quartz lens is flush with the inner surface of the measuring pipeline; the inclined plane of the inclined plane reflector (12) has an inclined angle of 67.5 degrees.
2. The high sensitivity fire flow switch of claim 1, wherein: the heat insulation seat is connected with the connecting seat through a flange.
3. The high sensitivity fire flow switch of claim 1, wherein: the thickness of the quartz lens is 0.1-0.5 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921368027.0U CN210108455U (en) | 2019-08-21 | 2019-08-21 | High-sensitivity fire-fighting flow switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921368027.0U CN210108455U (en) | 2019-08-21 | 2019-08-21 | High-sensitivity fire-fighting flow switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210108455U true CN210108455U (en) | 2020-02-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921368027.0U Active CN210108455U (en) | 2019-08-21 | 2019-08-21 | High-sensitivity fire-fighting flow switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210108455U (en) |
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2019
- 2019-08-21 CN CN201921368027.0U patent/CN210108455U/en active Active
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