Multi-parameter pressure transmitter for intelligent water affairs

Abstract

The utility model discloses a multi-parameter pressure transmitter for intelligent water affairs, which relates to the technical field of pressure transmitters and comprises a shell, a pressure sensor, a temperature sensor and a circuit board are arranged in the shell, the pressure sensor is electrically connected with the circuit board, two measuring electrodes are further fixedly arranged on the shell, and the measuring electrodes are electrically connected with the circuit board. The two measuring electrodes are insulated from the shell, one end of the shell is provided with a pressure connector, a pressure measuring channel leading to the pressure sensor is arranged in the pressure connector, the other end of the shell is connected with a connector through a cable, and the cable extends into the shell and is connected with the shell in a sealed mode. The end, extending into the shell, of the cable is connected with the circuit board, the temperature sensor and the two measuring electrodes. The device integrates depth, temperature, pH and conductivity measurement functions, is small in size, compact in structure and convenient to use, facilitates daily maintenance, and reduces the use cost.

Description

Technical Field

[0001] The utility model relates to the technical field of pressure transmitters, and in particular to a multi-parameter pressure transmitter for smart water services. Background Art

[0002] Smart water services use smart data processing technology to fully explore the value and logical relationships of data, realize intelligent control of water service systems, data resourceization, precise management, and intelligent decision-making, and ensure the safe operation of water facilities. Smart water services involve many water service scenarios, such as depth monitoring, temperature monitoring, pH monitoring, and conductivity monitoring scenarios in large water areas such as lakes and reservoirs.

[0003] At present, when measuring water bodies, devices for measuring water parameters such as depth, temperature, pH and conductivity are generally set up in the water body, and then each parameter is transmitted to the user end to achieve real-time detection of water body data. Using a variety of different parameter measurement devices is very troublesome to use, and daily maintenance is time-consuming and labor-intensive, and the cost of use is high. Utility Model Content

[0004] The purpose of the utility model is to provide a multi-parameter pressure transmitter for smart water services to solve the problems existing in the above-mentioned prior art, integrate the depth, temperature, pH and conductivity measurement functions, and have a small size, compact structure, easy use, convenient daily maintenance, and reduced use costs.

[0005] To achieve the above purpose, the utility model provides the following solutions:

[0006] The utility model provides a multi-parameter pressure transmitter for smart water services, comprising a shell, wherein a pressure sensor, a temperature sensor and a circuit board are arranged in the shell, wherein the pressure sensor is electrically connected to the circuit board, and wherein two measuring electrodes are fixedly arranged on the shell, wherein the two measuring electrodes are insulated from the shell, wherein one end of the shell has a pressure joint, wherein the pressure joint has a pressure measuring channel leading to the pressure sensor, and the other end of the shell is connected with a joint via a cable, wherein the cable extends into the shell and is sealed with the shell, and wherein one end of the cable extending into the shell is respectively connected with the circuit board, the temperature sensor and the two measuring electrodes.

[0007] Preferably, the shell includes a first shell and a second shell, the first shell and the second shell are welded and fixed and sealed, the pressure joint is arranged at the end of the first shell away from the second shell, the pressure sensor is arranged in the first shell and close to the pressure joint, a sensor locking ring is connected to the first shell, the sensor locking ring is threadedly connected to the end of the first shell away from the pressure joint, and the pressure sensor is pressed into the first shell, the temperature sensor is bonded to the side of the pressure sensor facing away from the pressure joint, the sensor locking ring is filled with thermal conductive glue, and the temperature sensor is encapsulated inside.

[0008] Preferably, the housing is filled with silica gel to encapsulate the circuit board therein.

[0009] Preferably, a glass sintered layer is provided between the measuring electrode and the shell, and the measuring electrode is fixed to the shell through the glass sintered layer and is insulated from the shell.

[0010] Preferably, a sealing groove is provided at one end of the second shell away from the first shell, and the cable passes through the sealing groove and extends into the second shell. A sealing ring and a wire pressing ring are provided in the sealing groove, and the sealing ring and the wire pressing ring are alternately sleeved on the cable. The notch of the sealing groove is threadedly connected with a locking wire cap, and the locking wire cap presses the sealing ring and the wire pressing ring to the bottom of the sealing groove. An iron sleeve is provided on the locking wire cap, and the iron sleeve is sleeved on the cable. The iron sleeve is pressed on the locking wire cap by a clamping nut threadedly connected to the end of the second shell, and the clamping nut is sleeved on the cable. An epoxy resin glue sealing layer is provided between the clamping nut and the cable.

[0011] Preferably, a corrugated tube is provided outside the cable between the connector and the clamping nut, and two ends of the corrugated tube are respectively fixed to the connector and the clamping nut.

[0012] Preferably, an elastic retaining ring is provided between one end of the pressure sensor close to the pressure measuring channel and the housing.

[0013] Preferably, a sealing ring is provided between the outer wall of the pressure sensor and the inner wall of the first housing.

[0014] Compared with the prior art, the utility model has achieved the following technical effects:

[0015] The multi-parameter pressure transmitter for smart water services provided by the utility model, when in use, is put into a water body, the water pressure is measured by a pressure sensor, and the water depth is calculated, the water temperature is measured by a temperature sensor, and the pH value and conductivity of the water body are measured by two measuring electrodes, integrating the depth, temperature, pH and conductivity measurement functions into one, with a small size, compact structure, easy use, convenient daily maintenance, and reduced use costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0017] Figure 1 This is a schematic structural diagram of the multi-parameter pressure transmitter for smart water services provided by the utility model.

[0018] In the figure: 1-shell, 2-pressure sensor, 3-temperature sensor, 4-circuit board, 5-measuring electrode, 6-pressure joint, 7-pressure measuring channel, 8-cable, 9-joint, 10-first shell, 11-second shell, 12-sensor locking ring, 13-thermal conductive glue, 14-silica gel, 15-glass sintered layer, 16-sealing groove, 17-sealing ring, 18-wire pressing ring, 19-locking cap, 20-iron sleeve, 21-pressing nut, 22-epoxy resin glue sealing layer, 23-bellows, 24-elastic retaining ring, 25-sealing ring. DETAILED DESCRIPTION

[0019] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] The purpose of the utility model is to provide a multi-parameter pressure transmitter for smart water services to solve the problems existing in the prior art, integrate the depth, temperature, pH and conductivity measurement functions, and have a small size, compact structure, easy use, convenient daily maintenance, and reduced use costs.

[0021] In order to make the above-mentioned purposes, features and advantages of the present invention more obvious and easy to understand, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0022] like Figure 1 As shown, this embodiment provides a multi-parameter pressure transmitter for smart water services, including a shell 1, in which a pressure sensor 2, a temperature sensor 3 and a circuit board 4 are arranged, the pressure sensor 2 is electrically connected to the circuit board 4, and two measuring electrodes 5 are fixedly arranged on the shell 1, and the two measuring electrodes 5 are insulated from the shell 1. One end of the shell 1 has a pressure joint 6, and the pressure joint 6 has a pressure measuring channel 7 leading to the pressure sensor 2. The other end of the shell 1 is connected to a joint 9 through a cable 8, and the cable 8 extends into the shell 1 and is sealed with the shell 1. One end of the cable 8 extending into the shell 1 is respectively connected to the circuit board 4, the temperature sensor 3 and the two measuring electrodes 5.

[0023] When in use, the pressure transmitter is put into the water body, the water pressure is measured by the pressure sensor 2, and the water depth is calculated, the water temperature is measured by the temperature sensor 3, and the pH value and conductivity of the water body are measured by two measuring electrodes 5, and the measured data are transmitted to the user end through the cable 8 and the connector 9, so as to realize the real-time detection of various parameters of the water body. The multi-parameter pressure transmitter provided in this embodiment integrates the depth, temperature, pH and conductivity measurement functions, has a small size, a compact structure, is easy to use, is convenient for daily maintenance, and reduces the use cost.

[0024] In this embodiment, the housing 1 includes a first housing 10 and a second housing 11, the first housing 10 and the second housing 11 are welded and fixed and sealed, the pressure joint 6 is arranged at one end of the first housing 10 away from the second housing 11, the pressure sensor 2 is arranged in the first housing 10 and close to the pressure joint 6, the first housing 10 is connected with a sensor locking ring 12, the sensor locking ring 12 is threadedly connected to one end of the first housing 10 away from the pressure joint 6, and the pressure sensor 2 is pressed into the first housing 10, the temperature sensor 3 is bonded to the side of the pressure sensor 2 facing away from the pressure joint 6, the sensor locking ring 12 is filled with thermal conductive glue 13, and the temperature sensor 3 is encapsulated therein. The temperature of the water body can be transmitted to the inside through the first housing 10, and then its temperature value is measured by the temperature sensor 3. The thermal conductive glue 13 can protect the temperature sensor 3 on the one hand, and facilitate the temperature transmission on the other hand.

[0025] In this embodiment, the housing 1 is filled with silica gel 14 to encapsulate the circuit board 4 therein, thereby protecting the circuit board 4 .

[0026] In this embodiment, a glass sintered layer 15 is provided between the measuring electrode 5 and the housing 1, and the measuring electrode 5 is fixed to the housing 1 through the glass sintered layer 15 and is insulated from the housing 1. The manufacturing is convenient and the structural stability of the measuring electrode 5 can be ensured.

[0027] In the present embodiment, a sealing groove 16 is provided at one end of the second housing 11 away from the first housing 10, and the cable 8 extends into the second housing 11 through the sealing groove 16, and a sealing ring 17 and a wire pressing ring 18 are provided in the sealing groove 16, and the sealing ring 17 and the wire pressing ring 18 are alternately sleeved on the cable 8, and the notch of the sealing groove 16 is threadedly connected with a locking cap 19, and the locking cap 19 presses the sealing ring 17 and the wire pressing ring 18 to the groove bottom of the sealing groove 16, and an iron sleeve 20 is provided on the locking cap 19, and the iron sleeve 20 is sleeved on the cable 8, and the iron sleeve 20 is pressed on the locking cap 19 by a clamping nut 21 threadedly connected to the end of the second housing 11, and the clamping nut 21 is sleeved on the cable 8, and an epoxy resin adhesive sealing layer 22 is provided between the clamping nut 21 and the cable 8. Through the double sealing structure of the epoxy resin adhesive sealing layer 22 and the sealing ring 17 and the wire pressing ring 18, it is ensured that water will not enter the housing 1, and the internal electronic components are prevented from being damaged by water, thereby improving the service life.

[0028] In this embodiment, a corrugated tube 23 is provided outside the cable line 8 between the connector 9 and the clamping nut 21, and both ends of the corrugated tube 23 are respectively fixed on the connector 9 and the clamping nut 21. The cable line 8 is protected by the corrugated tube 23 to prevent the cable line 8 from being damaged and affecting its use.

[0029] In this embodiment, an elastic retaining ring 24 is provided between the housing 1 and one end of the pressure sensor 2 close to the pressure measuring channel 7 to ensure the installation stability of the pressure sensor 2 .

[0030] In this embodiment, a sealing ring 25 is provided between the outer wall of the pressure sensor 2 and the inner wall of the first housing 10 to prevent water from entering the housing 1 from the pressure measuring channel 7 and damaging the internal electronic components, thereby increasing the service life of the pressure transmitter.

[0031] The present invention uses specific examples to illustrate the principle and implementation of the present invention. The above examples are only used to help understand the method and core idea of ​​the present invention. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation and application scope. In summary, the content of this specification should not be understood as limiting the present invention.

Claims

1. A multi-parameter pressure transmitter for smart water services, characterized in that: It comprises a shell, in which a pressure sensor, a temperature sensor and a circuit board are arranged, the pressure sensor is electrically connected to the circuit board, two measuring electrodes are fixedly arranged on the shell, the two measuring electrodes are insulated from the shell, one end of the shell has a pressure joint, a pressure measuring channel leading to the pressure sensor is arranged in the pressure joint, the other end of the shell is connected with a joint through a cable, the cable extends into the shell and is sealed with the shell, and one end of the cable extending into the shell is respectively connected with the circuit board, the temperature sensor and the two measuring electrodes.

2. The multi-parameter pressure transmitter for smart water services according to claim 1, characterized in that: The shell includes a first shell and a second shell, the first shell and the second shell are welded and fixed and sealed, the pressure joint is arranged at an end of the first shell away from the second shell, the pressure sensor is arranged in the first shell and close to the pressure joint, a sensor locking ring is connected in the first shell, the sensor locking ring is threadedly connected to an end of the first shell away from the pressure joint, and the pressure sensor is pressed into the first shell, the temperature sensor is bonded to the side of the pressure sensor facing away from the pressure joint, the sensor locking ring is filled with thermal conductive glue, and the temperature sensor is encapsulated therein.

3. The multi-parameter pressure transmitter for smart water services according to claim 1, characterized in that: The shell is filled with silica gel to encapsulate the circuit board.

4. The multi-parameter pressure transmitter for smart water services according to claim 1, characterized in that: A glass sintered layer is provided between the measuring electrode and the shell, and the measuring electrode is fixed to the shell through the glass sintered layer and is insulated from the shell.

5. The multi-parameter pressure transmitter for smart water services according to claim 2, characterized in that: A sealing groove is provided at one end of the second shell away from the first shell, and the cable passes through the sealing groove and extends into the second shell. A sealing ring and a wire pressing ring are provided in the sealing groove, and the sealing ring and the wire pressing ring are alternately sleeved on the cable. A locking wire cap is threadedly connected to the notch of the sealing groove, and the locking wire cap presses the sealing ring and the wire pressing ring to the bottom of the sealing groove. An iron sleeve is provided on the locking wire cap, and the iron sleeve is sleeved on the cable. The iron sleeve is pressed on the locking wire cap by a clamping nut threadedly connected to the end of the second shell, and the clamping nut is sleeved on the cable. An epoxy resin glue sealing layer is provided between the clamping nut and the cable.

6. The multi-parameter pressure transmitter for smart water services according to claim 5, characterized in that: A corrugated tube is arranged outside the cable between the connector and the clamping nut, and two ends of the corrugated tube are respectively fixed on the connector and the clamping nut.

7. The multi-parameter pressure transmitter for smart water services according to claim 1, characterized in that: An elastic retaining ring is arranged between one end of the pressure sensor close to the pressure measuring channel and the housing.

8. The multi-parameter pressure transmitter for smart water services according to claim 2, characterized in that: A sealing ring is provided between the outer wall of the pressure sensor and the inner wall of the first housing.

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