Temperature and pressure integrated digital monitoring device

Abstract

The utility model discloses a temperature and pressure integrated digital monitoring device, and relates to the field of monitoring devices. A temperature and pressure integrated digital monitoring device comprises a shell, a base and a connector, and a conversion circuit board is arranged in the shell; a temperature probe rod and a pressure core body are arranged in the base, the temperature probe rod and the pressure core body are electrically connected to the conversion circuit board, the top end of the base is in threaded connection with the shell, an air entraining cavity is formed in the base, the air entraining cavity is communicated with the pressure core body, and the temperature probe rod extends out of the base; the connector is arranged at the bottom end of the base and is in threaded connection with the base, the temperature probe rod penetrates through the connector, the end, away from the base, of the connector is used for being connected with a to-be-detected pipeline, and an air inlet cavity is formed between the connector and the temperature probe rod and communicated with the air entraining cavity. The temperature and pressure integrated digital monitoring device can detect the temperature and the pressure at the same time, and cost and installation space are saved.

Description

Technical Field

[0001] The utility model relates to the field of monitoring devices, in particular to a temperature-pressure integrated digital monitoring device. Background Art

[0002] A digital temperature and pressure monitoring device is an all-in-one instrument that can be installed on pipelines or containers to simultaneously collect temperature and pressure data. In practical applications, simultaneous temperature and pressure measurements of various media during production are often necessary. This integrated digital temperature and pressure monitoring device can be used to meet these requirements.

[0003] In current technology, in order to simultaneously monitor the temperature and pressure of the medium in the pipeline or container to be tested, the most common option is to use independent temperature detection equipment and independent pressure detection equipment respectively, so as to achieve the purpose of simultaneous temperature and pressure monitoring through two devices.

[0004] Although this method can ensure the measurement accuracy of each device, it requires the installation of two devices at the test point, which increases the installation difficulty and maintenance cost. At the same time, it has high requirements for installation space and cannot adapt to certain small or complex on-site environments. Utility Model Content

[0005] In order to use one device to simultaneously detect temperature and pressure, saving costs and installation space, the present application provides an integrated temperature and pressure digital monitoring device.

[0006] The present application provides a temperature and pressure integrated digital monitoring device that adopts the following technical solutions:

[0007] A temperature and pressure integrated digital monitoring device, comprising:

[0008] a housing, wherein a conversion circuit board is disposed in the housing;

[0009] A base, wherein a temperature probe and a pressure core are disposed inside the base, the temperature probe and the pressure core are electrically connected to the conversion circuit board, the top of the base is threadedly connected to the shell, an air inlet cavity is defined in the base, the air inlet cavity is connected to the pressure core, and the temperature probe extends outside the base;

[0010] A joint is provided at the bottom end of the base and is threadedly connected to the base. The temperature probe is passed through the joint. The end of the joint away from the base is used to connect to the pipeline to be measured. An air inlet cavity is provided between the joint and the temperature probe, and the air inlet cavity is connected to the air inlet cavity.

[0011] With this technical solution, the conversion circuit board handles signal processing and transmission, while the temperature probe and pressure core measure the temperature and pressure of the pipeline under test, respectively. A connector connects the base to the pipeline under test. The temperature probe extends directly to measure the temperature of the pipeline under test. Gas from the pipeline under test travels through the air intake and air bleed cavities to contact the pressure core. The arrangement of the air bleed and air intake cavities ensures that the pressure core accurately senses the gas pressure within the pipeline under test, enabling simultaneous pressure and temperature detection, saving installation space and reducing production costs.

[0012] Furthermore, the base includes an upper end piece, a main body piece and a lower end piece connected in sequence, the upper end piece is threadedly connected to the shell, the lower end piece is threadedly connected to the joint, the main body piece is provided with a center hole and a side hole, the temperature probe rod is passed through the center hole and through the lower end piece and the joint, and the pressure core is located in the side hole.

[0013] By adopting the above technical solution, by dividing the base into the upper end piece, the main body and the lower end piece, the independent processing and installation of each part is facilitated, and the installation of the main body, the temperature probe and the pressure core is also facilitated.

[0014] Furthermore, the temperature probe rod is externally sheathed with a protective sleeve, the protective sleeve is threadedly connected to the main body, a side wall of the protective sleeve is provided with a snap-fit ​​groove, and the snap-fit ​​groove is provided with a sealing ring.

[0015] By adopting the above technical solution, the protective sleeve can effectively protect the temperature probe from the influence of the external environment. The installation of the protective sleeve and the main part is achieved through threaded connection and sealing ring, while the sealing performance is enhanced to ensure the accuracy of temperature measurement.

[0016] Furthermore, a potting groove is provided between the protective sleeve and the temperature probe rod, and the potting groove is filled with silica gel.

[0017] By adopting the above technical solution, the connection between the protective sleeve and the temperature probe is achieved through silicone, and the subsequent replacement of the temperature probe is convenient. The probe can be taken out and replaced by simply removing the silicone.

[0018] Furthermore, there is a first gap between the main body and the lower end member, and a second gap between the lower end member and the protective sleeve, and the first gap and the second gap together constitute the air bleed cavity.

[0019] By adopting the above technical solution, after the joint and the pipeline to be measured are connected, the gas enters the digital monitoring meter through the air inlet cavity, and contacts the pressure core through the transmission of the first gap and the second gap. The setting of the air inlet cavity can guide the gas into the pressure core more stably and reliably, ensuring the measurement accuracy and response speed.

[0020] Furthermore, there is a gap between the upper end member and the main body member, the temperature probe rod and the pressure core are connected to a cable, and the cable is connected to the conversion circuit board through the gap.

[0021] By adopting the above technical solution, the gap between the upper end member and the main body member provides ample space for placing cables, so that the cables can be smoothly connected to the conversion circuit board through the gap, and the measurement data transmission is more stable.

[0022] Furthermore, the joint includes a sealing member and a union nut, the sealing member abuts against the lower end member, and the union nut is sleeved on the sealing member and threadedly connected to the lower end member.

[0023] By adopting the above technical solution, the seal ensures the sealing performance between the joint and the base to prevent gas leakage, and the union nut makes the joint more convenient to disassemble and maintain.

[0024] Furthermore, the shell is connected to an antenna, and the antenna is electrically connected to the conversion circuit board. The shell is provided with a display screen, and the display screen is electrically connected to the conversion circuit board.

[0025] By adopting the above technical solution, the antenna realizes the wireless transmission function, and the display screen can display the measurement results in real time, which is convenient for users to read and monitor.

[0026] In summary, this application has at least one of the following beneficial effects:

[0027] 1. The conversion circuit board is responsible for signal processing and transmission. The temperature probe and pressure core respectively measure the temperature and pressure of the pipeline under test. The connector connects the base to the pipeline under test. The temperature probe extends directly to measure the temperature of the pipeline under test. The gas in the pipeline under test passes through the air inlet and air bleed cavities and contacts the pressure core. The arrangement of the air bleed and air inlet cavities ensures that the pressure core can accurately sense the gas pressure in the pipeline under test, thus achieving simultaneous pressure and temperature detection, saving installation space and reducing production costs.

[0028] 2. The protective sleeve can effectively protect the temperature probe from the influence of the external environment. The installation of the protective sleeve and the main part is achieved through threaded connection and sealing ring, while enhancing the sealing performance and ensuring the accuracy of temperature measurement. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is a schematic diagram of the overall structure of the digital monitoring device according to an embodiment of the present application;

[0030] Figure 2 is an exploded view of the various parts of the digital monitoring device according to an embodiment of the present application;

[0031] Figure 3is a cross-sectional view of a digital monitoring device according to an embodiment of the present application;

[0032] Figure 4 yes Figure 3 A is an enlarged schematic diagram.

[0033] Description of reference numerals:

[0034] 1. Shell; 11. Antenna; 12. Display screen; 2. Base; 21. Upper end piece; 211. Snap ring; 22. Main body; 221. Snap groove; 23. Lower end piece; 3. Joint; 31. Seal; 32. Union nut; 4. Temperature probe; 41. Protective sleeve; 42. Potting groove; 43. Sealing ring; 44. Snap groove; 5. Pressure core; 51. Air inlet chamber; 52. Air bleed chamber; 521. First gap; 522. Second gap; 6. Gap. DETAILED DESCRIPTION

[0035] The present application is further described in detail below with reference to the accompanying drawings.

[0036] The embodiment of the present application discloses a temperature and pressure integrated digital monitoring device. Figure 1 and Figure 2 A digital temperature and pressure monitoring device comprises, from top to bottom, a housing 1, a base 2, and a connector 3. The housing 1 houses a converter circuit board, while the base 2 houses a temperature probe 4 and a pressure core 5. Both are electrically connected to the converter circuit board. The probe 4 and the pressure core 5 measure temperature and pressure, respectively, and transmit data signals to the converter circuit board. The top of the base 2 is threadedly connected to the housing 1, while the connector 3 is located at the bottom of the base 2 and is also threadedly connected to the base 2. The end of the connector 3, facing away from the base 2, is used to connect to the pipeline to be measured. The temperature probe 4 extends out of the base 2 and is passed through the joint 3. The temperature probe 4 directly contacts and measures the temperature inside the pipeline to be measured. An air inlet cavity 51 is provided between the joint 3 and the temperature probe 4. An air bleed cavity 52 is provided in the base 2. The air inlet cavity 51 is connected to the air bleed cavity 52, and the air bleed cavity 52 is connected to the pressure core 5. The gas in the pipeline to be measured contacts the pressure core 5 along the air inlet cavity 51 and the air bleed cavity 52 to achieve pressure measurement.

[0037] A metal nameplate is located on the top of the housing 1 for laser marking of product parameters. A battery is also located inside the housing 1 to provide power. An antenna 11 is connected to the housing 1 and electrically connected to a converter circuit board. Antenna 11 is used to transmit and collect signals. A display screen 12, electrically connected to the converter circuit board, is also located in the housing 1 to display temperature and pressure parameters.

[0038] Reference Figures 2 to 4The base 2 comprises, from top to bottom, an upper member 21, a main member 22, and a lower member 23. Each of the upper and lower members 21 and 23 is provided with a retaining ring 211 at one end near the main member 22. A retaining groove 221 is provided on each sidewall of the main member 22. The sidewalls of the retaining ring 211 abut against the sidewalls of the retaining groove 221, thereby sequentially connecting the upper member 21, the main member 22, and the lower member 23. The joints can also be sealed using laser welding to ensure airtightness. The upper member 21 is threadedly connected to the housing 1, and the lower member 23 is threadedly connected to the joint 3. The pressure core 5 is located in the main member 22, and the temperature probe 4 is sequentially inserted through the main member 22, the lower member 23, and the joint 3.

[0039] A gap 6 is horizontally arranged between the upper end piece 21 and the main body piece 22. The upper end piece 21 is hollow inside. The temperature probe 4 and the pressure core 5 are connected together with a cable, so that the cable can be connected to the conversion circuit board through the gap 6 and the inside of the upper end piece 21. There is sufficient space for cable setting, which is safer.

[0040] The main body 22 is provided with a central hole and a side hole. A protective sleeve 41 is provided in the central hole, and the temperature probe 4 is placed in the protective sleeve 41. A potting groove 42 is provided between the protective sleeve 41 and the temperature probe 4. The potting groove 42 is filled with silicone. The silicone can play a sealing and fixing role to prevent the temperature probe 4 from loosening due to vibration. At the same time, the provision of silicone facilitates the subsequent replacement of the temperature probe 4. The temperature probe 4 can be removed for repair and replacement by simply removing the silicone. The protective sleeve 41 is provided with an external thread, and the side wall of the central hole is provided with an internal thread. The protective sleeve 41 is threadedly connected to the main body 22 to achieve the fixation of the protective sleeve 41. In order to enhance the side sealing performance, a snap-in groove 44 is provided on the side wall of the protective sleeve 41, and a sealing ring 43 is provided in the snap-in groove 44. The pressure core 5 is placed in the side hole, and a core sealing ring 43 is provided on the side wall of the pressure core 5. The upper matching plane of the pressure core 5 and the main body 22 are sealed by laser welding to ensure no air leakage.

[0041] A first gap 521 is provided between the lower end piece 23 and the main body piece 22, and a second gap 522 exists between the lower end piece 23 and the protective sleeve 41. The first gap 521 and the second gap 522 together constitute an air inlet cavity 52, which is used to guide the pressure in the pipeline to be measured to reach the pressure core 5, thereby ensuring the accuracy of the measurement.

[0042] Reference Figure 2The connector 3 includes a seal 31 and a union nut 32. The seal 31 abuts the lower end member 23. The union nut 32 is sleeved over the seal 31 and threadedly connected to the lower end member 23. The air inlet chamber 51 is located between the seal 31 and the protective sleeve 41. The lower end of the seal 31 extends beyond the union nut 32. The seal 31 is used to connect to the pipeline under test, ensuring a tighter connection between the connector 3 and the pipeline under test and reducing the risk of gas leakage. The union nut 32 uses a hexagonal union nut with a hexagonal design, which is convenient for tightening and disassembling with a wrench.

[0043] The implementation principle of a temperature-pressure integrated digital monitoring device in an embodiment of the present application is as follows: when using the temperature-pressure integrated digital monitoring device, the lower end of the seal 31 is connected to the pipe to be measured, and the temperature probe 4 is in contact with the medium in the pipe to be measured to measure the temperature; the pressure of the medium enters through the protective sleeve 41 and the air inlet cavity 51 of the seal 31, and is guided through the air inlet cavity 52, that is, the first gap 521 and the second gap 522 to contact the pressure core 5, thereby realizing pressure detection; the detection data is transmitted to the conversion circuit table through a cable, and is displayed on the display screen 12 after conversion and transmission.

[0044] This specific implementation manner is merely an explanation of the present application and is not a limitation of the present application. After reading this specification, those skilled in the art may make non-creative modifications to the specific implementation manner as needed, but as long as they are within the scope of the claims of the present application, they are protected by the patent law.

Claims

1. A temperature and pressure integrated digital monitoring device, characterized in that: include: A housing (1), wherein a conversion circuit board is provided in the housing (1); A base (2), wherein a temperature probe (4) and a pressure core (5) are provided inside the base (2), wherein the temperature probe (4) and the pressure core (5) are both electrically connected to the conversion circuit board, wherein the top end of the base (2) is threadedly connected to the shell (1), wherein an air inlet cavity (52) is provided inside the base (2), wherein the air inlet cavity (52) is connected to the pressure core (5), and wherein the temperature probe (4) extends outside the base (2); A joint (3) is provided at the bottom end of the base (2) and is threadedly connected to the base (2); the temperature probe (4) is passed through the joint (3); an end of the joint (3) away from the base (2) is used for connecting to a pipeline to be measured; an air inlet cavity (51) is provided between the joint (3) and the temperature probe (4); the air inlet cavity (51) is communicated with the air inlet cavity (52).

2. The temperature-pressure integrated digital monitoring device according to claim 1, characterized in that: The base (2) comprises an upper end piece (21), a main body piece (22) and a lower end piece (23) connected in sequence, wherein the upper end piece (21) is threadedly connected to the shell (1), and the lower end piece (23) is threadedly connected to the joint (3). The main body piece (22) is provided with a central hole and a side hole. The temperature probe rod (4) is passed through the central hole and is passed through the lower end piece (23) and the joint (3). The pressure core (5) is located in the side hole.

3. The temperature-pressure integrated digital monitoring device according to claim 2, characterized in that: The temperature probe rod (4) is externally sleeved with a protective sleeve (41), the protective sleeve (41) is threadedly connected to the main body (22), a side wall of the protective sleeve (41) is provided with a snap-fit ​​groove (44), and the snap-fit ​​groove (44) is provided with a sealing ring (43).

4. The temperature-pressure integrated digital monitoring device according to claim 3, characterized in that: A potting groove (42) is provided between the protective sleeve (41) and the temperature probe rod (4), and the potting groove (42) is filled with silica gel.

5. The temperature-pressure integrated digital monitoring device according to claim 3, characterized in that: A first gap (521) exists between the main body (22) and the lower end piece (23), and a second gap (522) exists between the lower end piece (23) and the protective sleeve (41). The first gap (521) and the second gap (522) together constitute the air bleed cavity (52).

6. The temperature-pressure integrated digital monitoring device according to claim 2, characterized in that: There is a gap (6) between the upper end piece (21) and the main body piece (22), and the temperature probe rod (4) and the pressure core (5) are connected to a cable, and the cable is connected to the conversion circuit board through the gap (6).

7. The temperature-pressure integrated digital monitoring device according to claim 3, characterized in that: The joint (3) comprises a sealing member (31) and a union nut (32); the sealing member (31) abuts against the lower end member (23); the air inlet cavity (51) is arranged between the sealing member (31) and the protective sleeve (41); and the union nut (32) is sleeved on the sealing member (31) and threadedly connected to the lower end member (23).

8. The temperature-pressure integrated digital monitoring device according to claim 1, characterized in that: The housing (1) is connected to an antenna (11), and the antenna (11) is electrically connected to the conversion circuit board. The housing (1) is provided with a display screen (12), and the display screen (12) is electrically connected to the conversion circuit board.

Images