CN207424707U - Heat type flow quantity switchs - Google Patents
Heat type flow quantity switchs Download PDFInfo
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- CN207424707U CN207424707U CN201721307841.2U CN201721307841U CN207424707U CN 207424707 U CN207424707 U CN 207424707U CN 201721307841 U CN201721307841 U CN 201721307841U CN 207424707 U CN207424707 U CN 207424707U
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- probe
- control circuit
- upper body
- probe pipe
- stainless steel
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Abstract
The utility model discloses a kind of heat type flow quantity switch, including：The upper body (1) of built-in control circuit plate, the upper body is provided with electric interfaces (2), the upper body is provided with probe pipe (3), the probe pipe is provided with the flow probe (4) for being connected to control circuit board, the upper body is provided with mechanical mounting interface (5), and the probe pipe includes：Form 304 stainless steel tubes of probe pipe shell；The insulated heat glue being poured into 304 stainless steel tubes；The probe pipe, which is provided with, is connected to control circuit board and the temperature sensor (6) for detecting flow media temperature, and the probe pipe is provided with the heating core (7) close to traffic probe, and the heating core is connected to control circuit board.Heat type flow quantity switch carries out temperature-compensating by heating core to flow probe, and passes through the temperature that temperature sensor monitors flow media in real time, so as to which control circuit board control heating core be allowed to carry out auto thermal compensation.
Description
Technical field
The utility model is related to sensor technical fields, are switched more particularly, to a kind of heat type flow quantity.
Background technology
Heat type flow quantity switch can be used for monitoring pipeline inner fluid speed size, cutout monitoring or the idle running for preventing pump.Hot type
Flow switch, which is widely used in every profession and trade, to be needed to monitor fluids within pipes flow velocity or protects important set in fluid flow failure
Standby occasion, such as protection water pump, monitoring oil circuit, refrigeration and heating circuit, monitoring pipeline breaking, monitoring leakage field
It closes.
It is well known that heat type flow quantity switch be highly susceptible in use temperature influence, this for its own
Work influence is in the presence of negative effect.
Utility model content
The purpose of this utility model is exactly to solve the above-mentioned problems, a kind of heat type flow quantity switch to be provided, from temperature
The influence of height, itself functional reliability are high.
In order to solve the above technical problems, the embodiment of the utility model provides a kind of heat type flow quantity switch, including：
The upper body (1) of built-in control circuit plate, the upper body are provided with electric interfaces (2), and the upper body is provided with probe pipe
(3), the probe pipe is provided with the flow probe (4) for being connected to control circuit board, and the upper body is provided with mechanical mounting interface
(5), the probe pipe includes：Form 304 stainless steel tubes of probe pipe shell；The insulated heat being poured into 304 stainless steel tubes
Glue；The probe pipe, which is provided with, is connected to control circuit board and the temperature sensor (6) for detecting flow media temperature, described
Probe pipe is provided with the heating core (7) close to traffic probe, and the heating core is connected to control circuit board.
Further, the heating core is PTC heaters.
Further, the mechanical mounting interface uses external thread structure.
Further, the inner wall of 304 stainless steel tube is provided with several shrinkage pools.
Further, 304 stainless steel tube has stainless steel insulating sandwich.
The utility model has the advantages that：Heat type flow quantity switch carries out flow probe by heating core
Temperature-compensating, and pass through the temperature that temperature sensor monitors flow media in real time, so as to which control circuit board be allowed to control heating core
Carry out auto thermal compensation.
Description of the drawings
Fig. 1 is heat type flow quantity switch structure diagram；
Fig. 2 is heat type flow quantity switch internal schematic diagram.
Specific embodiment
In order to which the technical means, creative features, achievable purpose and effectiveness for realizing the utility model are easy to understand, under
In conjunction with specific embodiments, the utility model is expanded on further in face.
As shown in Figure 1, a kind of heat type flow quantity switch, including：The upper body 1 of built-in control circuit plate, the upper body
Electric interfaces 2 are provided with, the upper body is provided with probe pipe 3, and the probe pipe is provided with the flow for being connected to control circuit board
Probe 4, the upper body are provided with mechanical mounting interface 5, and mechanical mounting interface has external thread structure.
The probe pipe includes：Form 304 stainless steel tubes of probe pipe shell；The insulation being poured into 304 stainless steel tubes
Heat-insulated glue, other probe pipe components and signal transmission line are encapsulated in by insulated heat glue in probe pipe.Institute
It states probe pipe and is provided with the temperature sensor 6 for being connected to control circuit board and being used to detect flow media temperature, the probe pipe is set
The heating core 7 close to traffic probe is equipped with, such as PTC heaters, the heating core are connected to control circuit board.
Certainly, heating core can also use other electric heater units, be not limited herein.
As an improvement the inner wall of 304 stainless steel tubes is provided with several shrinkage pools, for being filled in 304 stainless steel tubes
Insulated heat glue obturator for, can be partially embedded into shrinkage pool, it is stainless 304 so as to increase insulated heat glue
Stability in steel pipe.
As an improvement 304 stainless steel tube has stainless steel insulating sandwich, this insulating sandwich can either improve whole
Body heat-proof quality is also beneficial to realize integrally-built lightweight.
Referring to Fig. 2, flow probe 4, temperature sensor 6, heating core are all connected with the MCU signals of flow sensor probe T
The temperature signal of fluid media (medium) is transported to MCU signal processors by processor, temperature sensor, and MCU signal processors are according to anti-
The temperature data of feedback and heating core is controlled to work, so as to fulfill to traffic probe carry out temperature-compensating, avoid outside
Environment temperature and caused by heat type flow quantity switch the problem of itself job stability is not high and occur.
It will be understood by those skilled in the art that the respective embodiments described above are to realize the specific implementation of the utility model
Example, and in practical applications, can to it, various changes can be made in the form and details, without departing from the spirit of the utility model
And scope.
Claims (5)
1. a kind of heat type flow quantity switch, including：The upper body (1) of built-in control circuit plate, the upper body are provided with electrically
Interface (2), the upper body are provided with probe pipe (3), and the probe pipe is provided with the flow probe for being connected to control circuit board
(4), the upper body is provided with mechanical mounting interface (5), which is characterized in that the probe pipe includes：
Form 304 stainless steel tubes of probe pipe shell；
The insulated heat glue being poured into 304 stainless steel tubes；
The probe pipe, which is provided with, is connected to control circuit board and the temperature sensor (6) for detecting flow media temperature, described
Probe pipe is provided with the heating core (7) close to traffic probe, and the heating core is connected to control circuit board.
2. heat type flow quantity switch according to claim 1, which is characterized in that the heating core is PTC heaters.
3. heat type flow quantity switch according to claim 1, which is characterized in that the mechanical mounting interface uses external screw thread knot
Structure.
4. heat type flow quantity switch according to claim 1, which is characterized in that the inner wall of 304 stainless steel tube is provided with
Several shrinkage pools.
5. heat type flow quantity according to claim 1 switch, which is characterized in that 304 stainless steel tube have stainless steel every
Hot interlayer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721307841.2U CN207424707U (en) | 2017-10-11 | 2017-10-11 | Heat type flow quantity switchs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721307841.2U CN207424707U (en) | 2017-10-11 | 2017-10-11 | Heat type flow quantity switchs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207424707U true CN207424707U (en) | 2018-05-29 |
Family
ID=62310934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721307841.2U Active CN207424707U (en) | 2017-10-11 | 2017-10-11 | Heat type flow quantity switchs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207424707U (en) |
-
2017
- 2017-10-11 CN CN201721307841.2U patent/CN207424707U/en active Active
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| GR01 | Patent grant |