Cooling device matched with pressure sensor for use

Abstract

A cooling device used in cooperation with a pressure sensor comprises a shell, a spiral medium pipe, a nut seat and a temperature detecting and receiving mechanism. Holes are formed in the upper end and the lower end of the shell respectively, the spiral medium pipe is installed in the shell, the outer sides of the upper end and the lower end of the spiral medium pipe are installed in the holes in the upper end and the lower end of the shell respectively, and the outer sides of the upper end and the lower end of the spiral medium pipe are installed together with the inner sides of the two nut seats respectively; a liquid inlet pipe and a liquid outlet pipe are installed outside the two sides of the shell respectively, a left magnet is installed outside the shell, the temperature detection mechanism comprises a storage battery, a temperature probe and a wireless transmitting circuit which are installed in the shell, a right magnet sheet is installed outside the shell, and the temperature detection probe is installed outside the shell; the shell is installed on the outer side of the shell in a suction mode. According to the utility model, a medium entering the pressure sensor is cooled in a liquid cooling manner, so that the heat dissipation effect is improved, and the probability of measurement errors caused by too high temperature rise of the pressure sensor is reduced; when the temperature of the shell rises, related management personnel can be prompted in a wireless mode.

Description

Technical Field

[0001] The utility model relates to the technical field of cooling equipment, in particular to a cooling device used in conjunction with a pressure sensor. Background Art

[0002] A pressure sensor is a device that is widely used in industrial production and other fields. Its main function is to detect the pressure of liquids or gases, and output current or voltage signals according to the magnitude of the pressure, providing technical support for monitoring the operating conditions of related equipment. With the progress of industrial technology, the functions of pressure sensors have also developed. The authorized patent with the patent number "202223524619.1" and the patent name "Air Permeable Structure of Pressure Sensor and Pressure Sensor" in China records that "by setting an air duct to connect the inside and outside of the sensor, the internal air pressure of the pressure sensor is balanced with the external atmospheric pressure, thus avoiding the abnormal signal output caused by too high internal air pressure of the pressure sensor. At the same time, compared with the traditional method of opening air holes outside the pressure sensor, in this embodiment, by setting an air duct, the connection between the inside and outside of the pressure sensor has a certain distance, reducing the possibility of moisture entering the pressure sensor through the duct, and having a better waterproof effect. In addition, both the air duct and the wire are arranged in the pipe sleeve, making the wiring neater and avoiding messy external lines."

[0003] As can be seen from the above patent, although the comparative patent achieves its stated invention purpose, due to structural limitations, like other existing devices in this field, there are still some specific technical problems, which are specifically reflected as follows. Since it does not have a supporting cooling device, when it is used to detect the air pressure of a medium with increased heat, when the medium exceeds the upper limit temperature specified by the pressure sensor, due to the thermal expansion effect of temperature on related components, etc., it will not only cause a large deviation in the measurement result of the sensor, but also affect the service life of the sensor. Therefore, taking effective, fast, and safe cooling measures for the measurement medium of the pressure sensor can not only increase the reliability of the measurement result, but also extend the service life of the sensor. In the prior art, for cooling the pressure sensor, the heat sink method is generally used (that is, the pressure sensor is installed on a heat dissipation mechanism with fin-shaped heat sinks). The heat sink method mainly relies on air cooling, and in a high-temperature environment, the cooling effect is limited, and it still cannot ensure the stable and reliable operation of the pressure sensor when detecting overheated media (gases, liquids). Summary of the Utility Model

[0004] In order to overcome the drawbacks of existing pressure sensors due to the lack of a practical heat dissipation mechanism as described in the background art, the present utility model provides a cooling and temperature reduction device for supporting the use of a pressure sensor, which effectively dissipates heat from the medium entering the pressure sensor through a liquid cooling method, and in extreme cases, can wirelessly prompt relevant management personnel in a timely manner when the cooling liquid stops flowing in and out and the temperature rises, ensuring the stable and reliable operation of the pressure sensor.

[0005] The technical solution adopted by the present utility model to solve its technical problems is as follows:

[0006] A cooling and temperature reduction device for supporting the use of a pressure sensor, comprising a housing, a spiral medium pipe, and a nut seat. It is characterized in that it further has a temperature detection mechanism and a receiving mechanism; the housing has openings in the middle of the upper and lower ends respectively, the spiral medium pipe is installed in the housing and its upper and lower outer sides are respectively installed in the openings of the upper and lower ends of the housing, there are at least two nut seats, and the upper and lower outer sides of the spiral medium pipe are respectively installed together with the inner sides of the two nut seats; liquid inlet pipes and liquid outlet pipes are respectively installed on the outer sides of both sides of the housing, the liquid inlet pipe is connected to the coolant pipe, and the liquid outlet pipe is connected to the waste liquid pipe; a left magnet is installed on the outer side of the housing, the temperature detection mechanism includes a battery, a temperature probe, a wireless transmission circuit, and a housing. The battery and the wireless transmission circuit are installed in the housing, a right magnet sheet is installed on the outer side of the housing, and the temperature probe is installed outside the housing; the housing is installed on the outer side of the housing by attracting with two magnet sheets.

[0007] Further, the temperature sensing surface of the temperature probe is closely attached to the outer side end of the housing.

[0008] Further, the wireless transmission circuit includes a resistor, a triode, a relay, and a wireless transmission circuit module that are electrically connected, and is connected to the temperature probe and the battery. The positive pole of the battery is connected to one end of the temperature probe, the positive pole of the relay, and the control power input terminal. The other end of the temperature probe is connected to one end of the first resistor and one end of the second resistor. The other end of the second resistor is connected to the base of the triode. The collector of the triode is connected to the negative power input terminal of the relay. The normally open contact terminal of the relay is connected to the positive power input terminal of the wireless transmission circuit module. The other end of the first resistor is connected to the emitter of the triode and the negative power input terminal of the wireless transmission circuit module. The two contacts under the first wireless signal transmission button of the wireless transmission circuit module are connected together.

[0009] Further, the temperature probe is a negative temperature coefficient thermistor.

[0010] Further, the receiving mechanism includes a battery A, a wireless receiving circuit module, and a buzzer that are electrically connected. The two poles of the battery A are connected to the power input terminal of the wireless receiving circuit module. The power output terminal of the wireless receiving circuit module is connected to the power input terminal of the buzzer.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: (1) The present model effectively dissipates heat from the medium (such as superheated gas or liquid) entering the pressure sensor through a liquid cooling method via a spiral medium tube, improving the heat dissipation effect and reducing the probability of measurement errors caused by excessive temperature rise in the pressure sensor; (2) During operation, the temperature detection mechanism can monitor the temperature of the housing in real time. In extreme cases, when the cooling liquid stops flowing in and out and the temperature rises, it can promptly notify relevant management personnel in a wireless manner, ensuring the stable and reliable operation of the pressure sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0013] Figure 1 It is a schematic diagram of the overall structure of the present utility model.

[0014] Figure 2 It is a schematic diagram of the partial sectional structure of the present utility model.

[0015] Figure 3 It is a schematic diagram of the partial top view structure of the present utility model.

[0016] Figure 4 、 5 It is the circuit diagram of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0017] Figure 1 、 2As shown in FIGS. 3, 4, and 5, a cooling device for supporting a pressure sensor includes a copper housing 1, a copper spiral medium pipe 2, and a copper nut seat 3, and also has a temperature detection mechanism and a receiving mechanism; the housing 1 is a hollow structure and has an opening 101 in the middle of the upper and lower ends respectively. The spiral medium pipe 2 is welded inside the housing 1, and its upper and lower ends are hermetically welded to the openings 101 at the upper and lower ends of the housing respectively. There are two nut seats 3. The spiral medium pipe 2 is welded to the inner sides of the two nut seats 3 respectively on the outer sides of the upper and lower ends of the housing 1. The nut seat 3 at the lower end of the housing 1 is threadedly connected to the upper end of the pipeline pressure detection pipe (not shown in the figure) of the working device, and the air inlet pipe at the lower end of the pressure sensor (not shown in the figure) is threadedly connected to the nut seat at the upper end of the housing 1; a copper liquid inlet pipe 102 and a liquid outlet pipe 103 that communicate with the inside are welded to the middle of the outer sides of the left and right ends of the housing 1 respectively. The liquid inlet pipe 102 is connected in series with a manual valve (not shown in the figure) and a coolant pipe (not shown in the figure. In this embodiment, it is directly connected to the tap water pipe, and the valve core opening is adjusted to a smaller position) through a pipeline. The liquid outlet pipe is connected to a waste liquid pipe (not shown in the figure) through a pipeline joint. The other end of the waste liquid pipe is located in a waste liquid tank or a waste liquid pool (not shown in the figure), etc. (or directly discharged downward through the sewer through the pipeline); a rectangular permanent left magnet sheet 4 is adhesively bonded to the middle and lower parts of the outer side of the right end of the housing 1 respectively. The temperature detection mechanism includes a storage battery G, a charging socket CZ, a temperature probe RT, and a wireless transmission circuit 7, and a housing 6. The storage battery G, the charging socket CZ, and the wireless transmission circuit 7 are installed on the circuit board inside the housing 6. A rectangular permanent right magnet sheet 5 is adhesively bonded to the upper and lower parts of the left outer side of the housing 6 respectively. The temperature probe RT is adhesively bonded and installed between the two right magnet sheets (located at the outer end of the housing); the housing 6 is installed on the right outer side of the housing 4 by attracting with the two magnet sheets.

[0018] Figure 1 、 2As shown in Figures 3, 4, and 5, the temperature-sensing surface of the temperature probe RT is closely attached to the right outer side end of the housing 1. The wireless transmission circuit includes a resistor R1, a resistor R2, a triode Q1, a relay J1, and a wireless transmission circuit module E1 that are connected through circuit board wiring, and is connected to the temperature probe RT, the storage battery G, and the charging socket CZ through wires (the jack of the charging socket CZ is located outside the opening at the right end of the housing, and the external power charger plug can be inserted into the charging socket CZ to charge the storage battery G). The positive pole of the storage battery G is connected to one end of the charging socket CZ, one end of the temperature probe RT, the positive pole of the relay J1, and the control power input terminal. The other end of the temperature probe RT is connected to one end of the first resistor R1 and one end of the second resistor R2. The other end of the second resistor R2 is connected to the base of the triode Q1. The collector of the triode Q1 is connected to the negative power input terminal of the relay J1. The normally open contact terminal of the relay J1 is connected to the positive power input terminal of the wireless transmission circuit module E1. The other end of the first resistor R1 is connected to the emitter of the triode Q1, the other end of the charging socket CZ, and the second pin of the negative power input terminal of the wireless transmission circuit module E1. The two contacts under the first wireless signal transmission button D1 of the wireless transmission circuit module E1 are connected together. The temperature probe RT is a negative temperature coefficient thermistor. The receiving mechanism includes a storage battery AG1, a charging socket ACZ1, a power switch S1, a wireless receiving circuit module E2, and a buzzer B that are connected through circuit board wiring and installed in the component box 8 (carried by the staff). The two poles of the storage battery AG1 and the charging socket A (the jack of the charging socket ACZ1 is located outside the opening at the right end of the component box 8, and the external power charger plug can be inserted into the charging socket CZ to charge the storage battery G) are connected through wires at both ends, and are connected in series through the power switch S1 (the handle is located outside the opening at the right end of the housing)) and the first and second pins of the power input terminal of the wireless receiving circuit module E2 through wires. The third and second pins of the power output terminal of the wireless receiving circuit module E2 and the two ends of the power input of the buzzer B are connected through wires respectively. Figure 4 , 5 In this case, the relay J1 is a DC12V relay; the model of the triode Q1 is 9013 (NPN type); the resistance values of the resistors R1 and R2 are 10K and 47K respectively; the temperature probe RT is a negative temperature coefficient thermistor of model NTC103D; the storage batteries G and AG1 are lithium storage batteries of model 12V / 3Ah; the buzzer B is a finished product of an active continuous sound buzzer alarm of model MF12V; the wireless transmission circuit module E1 and the wireless receiving circuit module E2 are finished products of wireless transmission and receiving circuit module components of model CUK1910, and the wireless signal transmission and reception distance is 500 meters (the same function as the vehicle-mounted wireless transmission and receiving module components); the above-mentioned components of this new type are not mature industrial products, and this application will not elaborate on their structures and working principles.

[0019] Figure 1 , 2As shown in Figures 3, 4, and 5, in this new type, since the outer shell and the housing are magnetically attracted and connected, when components inside the outer shell are damaged and need to be repaired, etc., it can be easily removed and installed. During operation, the high-temperature and high-pressure medium (liquid or gas) to be detected enters the intake pipe of the pressure sensor through the spiral medium pipe 2. The pressure sensor detects the pressure of the medium. Cooling water (not limited to water, and other cooling liquids can also be used; adjust the valve core opening to a smaller position to reduce water consumption on the basis of effectively cooling the medium inside the housing) flows in from the liquid inlet pipe 102 and out from the liquid outlet pipe 103. During the inflow and outflow of the cooling medium, it will cool the medium to be detected inside the spiral medium pipe 2. In this new type, the temperature of the housing directly acts on the temperature-sensing surface of the temperature probe RT. When the temperature is high, the resistance value of the temperature probe RT is low and the voltage division between it and the resistor R1 is small; conversely, the voltage division is large. When the cooling medium flows in and out normally and can cool the medium to be detected, due to the low temperature and large resistance value of the temperature-sensing surface of the temperature probe RT, the voltage division between it and the resistor R1 is large. In this way, the 12V power supply output by the battery G is divided by the temperature probe RT and the resistor R1, and the resistor R2 steps down and limits the current to enter the base of the triode Q1 below 0.7V, and the triode Q1 will not conduct. The relay J1 will not be energized and attracted, and the wireless transmission circuit module E1 will not emit a wireless signal. When the cooling medium no longer flows in and out normally and can cool the medium to be detected (such as when the tap water supply stops), due to the high temperature and small resistance value of the temperature-sensing surface of the temperature probe RT, the voltage division between it and the resistor R1 is small. In this way, the 12V power supply output by the battery G is divided by the temperature probe RT and the resistor R1, and the resistor R2 steps down and limits the current to enter the base of the triode Q1 above 0.7V, and the triode Q1 will conduct and the collector will output a low level to enter the negative power input terminal of the relay J1. The relay J1 will be energized and attracted to control the power input terminal and the normally open contact terminal to close. Since the two contacts below the first transmission button D1 of the wireless transmission circuit module E1 are connected together, the wireless transmission circuit module E1 will emit the first wireless signal. Within a range of 500 meters, after the wireless receiving circuit module E2 receives the first wireless closing signal, its pin 3 outputs a high level to enter the positive power input terminal of the buzzer B. Thus, the buzzer B is energized and sounds to prompt the relevant staff that the equipment cannot normally cool the medium to be detected. Through the above technical solutions, this new type effectively dissipates heat from the medium (such as superheated gas or liquid) entering the pressure sensor through the liquid cooling method, improves the heat dissipation effect, and reduces the probability of measurement error of the pressure sensor caused by excessive temperature rise; in extreme cases, when the cooling liquid stops flowing in and out and the temperature rises, it can promptly prompt the relevant management personnel to repair and maintain in a wireless manner, ensuring the stable and reliable operation of the pressure sensor.

[0020] Those skilled in the art should understand that although this specification is described in terms of embodiments, not every embodiment only contains an independent technical solution. This narrative style of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in the embodiments can also be appropriately combined to form other embodiments that can be understood by those skilled in the art. Therefore, the protection scope of this application is defined by the claims.

Claims

1. A cooling device for supporting a pressure sensor, comprising a housing, a spiral medium tube, and a nut seat, characterized in that, It also has a temperature detection mechanism and a receiving mechanism; the housing has openings in the middle of the upper and lower ends respectively. The spiral medium tube is installed inside the housing, and its upper and lower outer sides are respectively installed in the openings of the upper and lower ends of the housing. There are at least two nut seats, and the upper and lower outer sides of the spiral medium tube are respectively installed together with the inner sides of the two nut seats; on the outer sides of both sides of the housing, a liquid inlet pipe and a liquid outlet pipe are respectively installed. The liquid inlet pipe is connected to the coolant pipe, and the liquid outlet pipe is connected to the waste liquid pipe; a left magnet is installed on the outer side of the housing. The temperature detection mechanism includes a battery, a temperature probe, a wireless transmission circuit, and a housing. The battery and the wireless transmission circuit are installed inside the housing. A right magnet sheet is installed on the outer side of the housing, and the temperature probe is installed outside the housing; the housing is installed on the outer side of the housing by attracting with two magnet sheets.

2. The cooling device used in conjunction with the pressure sensor according to claim 1, wherein The temperature sensing surface of the temperature probe is closely attached to the outer side end of the housing.

3. A cooling device for use with a pressure sensor according to claim 1, characterized in that, The wireless transmission circuit includes a resistor, a triode, a relay, and a wireless transmission circuit module that are electrically connected, and is connected to the temperature probe and the battery. The positive pole of the battery is connected to one end of the temperature probe, the positive pole of the relay, and the control power input terminal. The other end of the temperature probe is connected to one end of the first resistor and one end of the second resistor. The other end of the second resistor is connected to the base of the triode. The collector of the triode is connected to the negative power input terminal of the relay. The normally open contact terminal of the relay is connected to the positive power input terminal of the wireless transmission circuit module. The other end of the first resistor is connected to the emitter of the triode and the negative power input terminal of the wireless transmission circuit module. The two contacts under the first wireless signal transmission button of the wireless transmission circuit module are connected together.

4. The cooling device used in conjunction with the pressure sensor according to claim 1, characterized in that, The temperature probe is a negative temperature coefficient thermistor.

5. A cooling device for use with a pressure sensor according to claim 1, characterized in that, The receiving mechanism includes a battery A, a wireless receiving circuit module, and a buzzer that are electrically connected. The two poles of the battery A are connected to the power input terminal of the wireless receiving circuit module. The power output terminal of the wireless receiving circuit module is connected to the power input terminal of the buzzer.

Images