Gas mass flow meter

Abstract

The utility model discloses a gas mass flow meter, and belongs to the technical field of flow meters. Comprising a measuring pipe, flange plates sleeve the two ends of the measuring pipe, a pair of connecting pipes are inserted into one side of the upper end face of the measuring pipe, a first measuring mechanism is installed at the top end of the measuring pipe, a second measuring mechanism is arranged at the upper end of the first measuring mechanism, and a flow computer is arranged at the upper end of the second measuring mechanism. A power supply mechanism is arranged on one side of the upper end of the flow computer, a wireless transmission mechanism is arranged on the other side of the upper end face of the flow computer, the first measuring mechanism comprises a vortex shedding flowmeter, the bottom end of the vortex shedding flowmeter is connected with the upper end of a measuring pipe, and a detection head is installed at the bottom end of the vortex shedding flowmeter; the bottom end of the detection head penetrates through the measuring tube, extends into the measuring tube and is provided with a vortex generating body; according to the gas mass flow meter, the practicability of the gas mass flow meter can be effectively improved, and the gas mass flow meter has high practical value.

Description

TECHNICAL FIELD

[0001] The utility model relates to flowmeter technical field, concretely is gas mass flowmeter. BACKGROUND

[0002] In the field of gas flow measurement, accurately obtaining the flow data of gas plays a key role in the effective control and optimization of many processes, and traditional gas flowmeters are mainly based on volume flow measurement principles, such as differential pressure flowmeters, turbine flowmeters, vortex flowmeters, etc.

[0003] Based on the above, the present inventors found that the following problems exist: the current gas mass flowmetering equipment cannot accurately measure the true flow of the gas component that is always changing, affecting user use.

[0004] Therefore, in view of the above, the existing structure and defects are studied and improved, and the gas mass flowmeter is provided to achieve the purpose of having more practical value. INNOVATIVE CONTENT

[0005] The utility model aims at providing gas mass flowmeter to solve the problems in the above background art.

[0006] By adopting the above technical scheme, the accuracy of flow measurement is improved.

[0007] In view of the above problems, the technical scheme provided by the utility model is:

[0008] The gas mass flowmeter comprises a measuring pipe, flanges are arranged at both ends of the measuring pipe, a pair of connecting pipes are arranged on one side of the upper end face of the measuring pipe, a first measuring mechanism is installed at the top end of the measuring pipe, a second measuring mechanism is arranged at the upper end of the first measuring mechanism, a flow computer is arranged at the upper end of the second measuring mechanism, a power supply mechanism is arranged on one side of the upper end of the flow computer, and a wireless transmission mechanism is arranged on the other side of the upper end face of the flow computer.

[0009] Further, the first measuring mechanism comprises a vortex flowmeter, and the bottom end of the vortex flowmeter is connected with the upper end of the measuring pipe.

[0010] The vortex flowmeter can utilize the Karman vortex street principle to preliminarily measure the volume flow of the gas by detecting the alternating shedding vortices generated behind the vortex flowmeter after the fluid flows through the measuring pipe, thereby providing basic data for subsequent calculation of the gas mass flow.

[0011] Further, a detection head is installed at the bottom end of the vortex flowmeter, the bottom end of the detection head extends to the inside of the measuring pipe, and a vortex generator is installed.

[0012] The beneficial effect of the further scheme is that the detection head installed at the bottom end of the vortex flowmeter can extend to the inside of the measuring pipe through the bottom end, and can accurately detect the vortex generated by the vortex generator.

[0013] Further, the second measuring mechanism includes a differential pressure transmitter, the bottom end of the differential pressure transmitter is connected with the top end of the vortex flowmeter, and the top end of the differential pressure transmitter is connected with the bottom end of the flow computer.

[0014] The beneficial effect of the further scheme is that the differential pressure transmitter cooperates with the vortex flowmeter to measure the gas flow by different measuring principles, the vortex flowmeter measures the volume flow by the Karman vortex principle, and the differential pressure transmitter measures the pressure difference generated when the fluid flows through the measuring pipe to provide another dimension of data for the measurement of the gas flow, and the data of the two different principles can complement each other to improve the accuracy and reliability of the measurement results.

[0015] Further, one side of the differential pressure transmitter is provided with a pair of pressure guide pipes, and the bottom ends of the pair of pressure guide pipes are respectively connected with the pair of connecting pipes.

[0016] The beneficial effect of the further scheme is that the pair of pressure guide pipes installed on one side of the differential pressure transmitter are connected with the pair of connecting pipes at the bottom ends, and the pressure signals at different positions in the measuring pipe can be accurately obtained, the pressure difference generated when the gas flows through the measuring pipe can be effectively captured through the two pressure guide pipes, accurate pressure data can be provided for the differential pressure transmitter, and the accuracy of the gas flow measurement is improved.

[0017] Further, the power supply mechanism includes a first connecting rod, a movable seat is installed at the top end of the first connecting rod, and a solar panel is hinged in the movable seat through a pin shaft.

[0018] The beneficial effect of the further scheme is that the movable seat installed at the top end of the first connecting rod enables the solar panel to flexibly rotate in the movable seat around the pin shaft, the position of the solar panel is adjusted, the utilization efficiency of solar energy is improved, and stable power supply is provided for the gas mass flowmeter.

[0019] Further, the wireless transmission mechanism includes a connecting seat, a second connecting rod is installed at the upper end of the connecting seat, a mounting seat is rotatably connected to the top end of the second connecting rod, and a signal transceiver is installed on one side of the mounting seat.

[0020] The beneficial effect of the further scheme is that the connecting seat can conveniently install the wireless transmission mechanism at a designated position of the flow computer, and adapt the overall structure of the gas mass flowmeter. The second connecting rod extends the installation height to some extent, and provides a more favorable signal transmission position for the signal transceiver, and facilitates flexible adjustment of the layout according to the actual environment on site to obtain the best signal transmission effect.

[0021] Further, the flow computer is internally provided with a lithium battery and an inverter, and the lithium battery is electrically connected between the solar panel and the inverter through a wire.

[0022] The beneficial effect of the further scheme is that the lithium battery in the flow computer is electrically connected with the solar panel through a wire, which can effectively store the electric energy generated by the solar panel. When the light is sufficient, the solar panel converts solar energy into electric energy and stores it in the lithium battery, so as to provide continuous power supply for each component of the gas mass flowmeter when the light is insufficient or there is no light, and ensure uninterrupted measurement work. The lithium battery cooperates with the inverter to convert the stored direct current into alternating current suitable for each component, and provides stable power output for the flow computer and other electrical equipment.

[0023] Further, the input and output ends of the flow computer are in communication connection with the input and output ends of the signal transceiver, the vortex flowmeter and the differential pressure transmitter.

[0024] The beneficial effect of the further scheme is that the flow computer is in communication connection with the vortex flowmeter and the differential pressure transmitter, so that the gas flow related data measured by the two can be obtained in real time. The data measured by different principles are integrated, and the built-in algorithm is used for comprehensive analysis, so that the real mass flow of the gas can be more accurately calculated, and the limitation of single measurement method is compensated.

[0025] The gas mass flowmeter disclosed by the utility model has the advantages that the gas mass flowmeter is connected with the pipeline system conveniently, can be fixed quickly through connecting pieces such as bolts, the installation efficiency is improved, is suitable for different pipeline layouts and installation scenes, the first measuring mechanism installed at the top end of the measuring pipe and the second measuring mechanism at the upper end thereof are matched with each other, the measurement accuracy and comprehensiveness are improved, more reliable data basis is provided for obtaining the real gas mass flow, the flow computer can receive and process the data from the first measuring mechanism and the second measuring mechanism, the measurement data are analyzed and calculated through the built-in algorithm, the measurement signal is converted into intuitive gas mass flow data, the operation personnel can read and use conveniently, the power supply mechanism at the upper end of the flow computer provides stable power supply for the whole gas mass flowmeter, ensures that the measuring mechanisms and the computer system operate normally, guarantees the continuity and stability of the measurement and data processing work, the wireless transmission mechanism at the other side of the upper end face of the flow computer enables the gas mass flowmeter to transmit the measured flow data to the remote monitoring equipment or control system in a wireless mode, the operation personnel can obtain the data in real time at different places, remote monitoring and management are realized, and the work efficiency and convenience are improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 The utility model discloses a gas mass flowmeter's three -dimensional structure schematic Figure 1 ;

[0027] Figure 2 The utility model discloses a gas mass flowmeter's three -dimensional structure schematic Figure 2 ;

[0028] Figure 3 The utility model discloses a gas mass flowmeter's three -dimensional structure schematic Figure 3 ;

[0029] Figure 4 The utility model discloses a gas mass flowmeter's Figure 1 The A structure amplification schematic drawing of the utility model embodiment discloses a gas mass flowmeter;

[0030] Figure 5 The utility model discloses a gas mass flowmeter's side view schematic drawing.

[0031] In the figure: 100, measuring pipe; 101, flange plate; 102, first measuring mechanism; 10201, vortex flowmeter; 10202, vortex generator; 10203, detection head; 103, second measuring mechanism; 10301, differential pressure transmitter; 10302, pressure lead pipe; 104, flow computer; 105, power supply mechanism; 10501, first connecting rod; 10502, movable seat; 10503, solar panel; 106, wireless transmission mechanism; 10601, connecting seat; 10602, second connecting rod; 10603, mounting seat; 10604, signal transceiver; 107, connecting pipe. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0033] Please refer to Figure 1 - Figure 5The utility model provides a technical scheme: gas mass flowmeter, including measuring tube 100, both ends of measuring tube 100 are all equipped with flange plate 101, and one side of the upper end surface of measuring tube 100 is inserted with a pair of connecting pipe 107, and the top of measuring tube 100 is equipped with first measuring mechanism 102, and the upper end of first measuring mechanism 102 is equipped with second measuring mechanism 103, and the upper end of second measuring mechanism 103 is equipped with flow computer 104, and one side of the upper end of flow computer 104 is equipped with power supply mechanism 105, and the other side of the upper end surface of flow computer 104 is equipped with wireless transmission mechanism 106, through the flange plate 101 of the both ends of measuring tube 100, gas mass flowmeter can be connected with pipeline system conveniently, can be fixed quickly through bolt and the like connecting piece, improves installation efficiency, is applicable to different pipeline layout and installation scene, and the first measuring mechanism 102 of the top of measuring tube 100 and the second measuring mechanism 103 of its upper end cooperate with each other, help to improve the accuracy and comprehensiveness of measurement, provide more reliable data basis for obtaining gas real mass flow, and flow computer 104 can receive and handle the data from first measuring mechanism 102 and second measuring mechanism 103, through built-in algorithm, the measurement data are analyzed and calculated, and the measurement signal is converted into intuitive gas mass flow data, convenient for operator to read and use, and the power supply mechanism 105 of one side of the upper end of flow computer 104 provides stable power supply for the whole gas mass flowmeter, ensures that each measuring mechanism and computer system normally operate, guarantees the continuity and stability of measurement and data processing work, and the wireless transmission mechanism 106 of the other side of the upper end surface of flow computer 104 makes gas mass flowmeter can transmit the flow data obtained by measurement to remote monitoring equipment or control system in wireless mode, convenient for operator to obtain data in real time at different places, realizes remote monitoring and management, improves work efficiency and convenience.

[0034] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model and not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative work fall within the scope of the utility model.

[0035] Please refer to Figure 1 - Figure 5, the first measuring mechanism 102 comprises a vortex flowmeter 10201, the bottom end of the vortex flowmeter 10201 is connected with the upper end of the measuring pipe 100, a detection head 10203 is installed at the bottom end of the vortex flowmeter 10201, the bottom end of the detection head 10203 extends to the inside through the measuring pipe 100 and is installed with a vortex generator 10202, the second measuring mechanism 103 comprises a differential pressure transmitter 10301, the bottom end of the differential pressure transmitter 10301 is connected with the top end of the vortex flowmeter 10201, the top end of the differential pressure transmitter 10301 is connected with the bottom end of the flow computer 104, a pair of pressure lead pipes 10302 is installed on one side of the differential pressure transmitter 10301, the bottom end of the pair of pressure lead pipes 10302 is connected with a pair of connecting pipes 107 respectively, the vortex flowmeter 10201 can use the Karman vortex street principle to preliminarily measure the volume flow of the gas by detecting the vortex generated after the fluid flows through the measuring pipe 100 and the specific shape object of the vortex flowmeter 10201, and provide basic data for subsequent calculation of the gas mass flow, the detection head 10203 installed at the bottom end of the vortex flowmeter 10201 can extend to the inside through the measuring pipe 100 at the bottom end, and can detect the vortex generated by the vortex generator 10202 at close range and accurately, the differential pressure transmitter 10301 cooperates with the vortex flowmeter 10201 to measure the gas flow through different measuring principles, the vortex flowmeter 10201 measures the volume flow by using the Karman vortex street principle, and the differential pressure transmitter 10301 measures the pressure difference generated when the fluid flows through the measuring pipe 100 to provide data of another measurement dimension for the measurement of the gas flow, the data of the two different principles are complementary to each other, and the accuracy and reliability of the measurement result can be improved, the pair of pressure lead pipes 10302 installed on one side of the differential pressure transmitter 10301 is connected with the pair of connecting pipes 107 respectively at the bottom end, and can accurately obtain the pressure signals at different positions in the measuring pipe 100, through the two pressure lead pipes 10302, the pressure difference generated when the gas flows through the measuring pipe 100 can be effectively captured to provide accurate pressure data for the differential pressure transmitter 10301, and the accuracy of the gas flow measurement is improved.

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0037] Please refer to Figure 1 - Figure 5The power supply mechanism 105 comprises a first connecting rod 10501, a movable seat 10502 is installed at the top end of the first connecting rod 10501, a solar panel 10503 is hingedly connected inside the movable seat 10502 through a pin shaft, the wireless transmission mechanism 106 comprises a connecting seat 10601, a second connecting rod 10602 is installed at the upper end of the connecting seat 10601, a mounting seat 10603 is rotatably connected at the top end of the second connecting rod 10602, a signal transceiver 10604 is installed on one side of the mounting seat 10603, a lithium battery and an inverter are arranged inside the flow computer 104, the lithium battery is electrically connected between the solar panel 10503 and the inverter through a wire, the input and output ends of the flow computer 104 are in communication connection with the input and output ends of the signal transceiver 10604, the vortex flowmeter 10201 and the differential pressure transmitter 10301, the movable seat 10502 installed at the top end of the first connecting rod 10501 enables the solar panel 10503 to flexibly rotate inside the movable seat 10502 with the pin shaft as the center, adjusts the position of the solar panel 10503, maximally receives solar energy, improves the utilization efficiency of solar energy, provides stable power supply for the gas mass flowmeter, the connecting seat 10601 can conveniently install the wireless transmission mechanism 106 at a specified position of the flow computer 104, and is suitable for the overall structure of the gas mass flowmeter. The second connecting rod 10602 extends the mounting height to a certain extent, provides a more favorable signal transmission position for the signal transceiver 10604, and is convenient for flexibly adjusting the layout according to the actual environment on site to obtain the best signal transmission effect, the lithium battery inside the flow computer 104 is electrically connected with the solar panel 10503 through a wire, can effectively store the electric energy generated by the solar panel 10503, when the light is sufficient, the solar panel 10503 converts solar energy into electric energy and stores it in the lithium battery, so as to provide continuous power supply for each component of the gas mass flowmeter when the light is insufficient or there is no light, ensures uninterrupted measurement work, the lithium battery cooperates with the inverter, can convert the stored direct current into alternating current suitable for use of each component, provides stable power output for the flow computer 104 and other electrical equipment, the flow computer 104 is in communication connection with the vortex flowmeter 10201 and the differential pressure transmitter 10301, can obtain the gas flow related data measured by the two in real time, integrates the data measured by different principles, uses the built-in algorithm for comprehensive analysis, so as to more accurately calculate the real mass flow of the gas, and makes up for the limitation of single measurement means.

[0038] Specifically, the working principle of the gas mass flowmeter: in use, the flange disc 101 is sleeved at both ends of the measuring pipe 100, and is quickly fixed with the pipeline system by using bolts and other connecting parts to realize connection with different pipeline layouts, ensure that the gas can flow through the measuring pipe 100, and the vortex flowmeter 10201 is connected with the upper end of the measuring pipe 100, the detection head 10203 at the bottom of the vortex flowmeter 10201 penetrates the inside of the measuring pipe 100, and the vortex generator 10202 below the detection head 10203 generates alternating vortexes when the gas flows through, the detection head 10203 accurately detects these vortexes, and the volume flow of the gas is preliminarily measured by using the Karman vortex street principle, the differential pressure transmitter 10301 is connected with the top end of the vortex flowmeter 10201, and a pair of pressure lead pipes 10302 at one side of the differential pressure transmitter 10301 are connected with a pair of connecting pipes 107 at one side of the upper end surface of the measuring pipe 100 respectively, the pressure signals at different positions in the measuring pipe 100 are accurately obtained through the pressure lead pipes 10302, the pressure difference generated when the gas flows through the measuring pipe 100 is captured, and another dimension of data is provided for gas flow measurement, the flow computer 104 is in communication connection with the vortex flowmeter 10201 and the differential pressure transmitter 10301, real-time acquisition of the gas flow related data measured by the two is realized, the data measured by different principles is integrated and comprehensively analyzed by using the built-in algorithm, so that the real mass flow of the gas is accurately calculated, the movable seat 10502 installed at the top end of the first connecting rod 10501 of the power supply mechanism 105 enables the solar panel 10503 to rotate flexibly, so as to maximize the reception of solar energy, the electric energy generated by the solar panel 10503 is stored in the lithium battery in the flow computer 104 through the wire, when the illumination is insufficient, the lithium battery continuously supplies power to each part, at the same time, the lithium battery cooperates with the inverter to convert direct current into alternating current, so as to provide stable power output for the flow computer 104 and other electrical equipment, the connecting seat 10601 of the wireless transmission mechanism 106 is installed at the specified position of the flow computer 104, the second connecting rod 10602 is extended in height, the mounting seat 10603 rotatably connected at the top end of the second connecting rod 10602 is installed on one side of the signal transceiver 10604, the position of the signal transceiver 10604 can be adjusted according to the on-site environment, the signal transceiver 10604 is in communication connection with the flow computer 104, the gas mass flow data processed by the flow computer 104 is transmitted to the remote monitoring equipment or control system in a wireless manner, so as to realize remote monitoring and management.

Claims

1. A gas mass flow meter characterized by, Including the measuring tube (100), both ends of the measuring tube (100) are sleeved with flange (101), a pair of connecting pipe (107) is inserted on the upper end surface side of the measuring tube (100), the top of the measuring tube (100) is provided with first measuring mechanism (102), the upper end of the first measuring mechanism (102) is provided with second measuring mechanism (103), the upper end of the second measuring mechanism (103) is provided with flow computer (104), the upper end of the flow computer (104) is provided with power supply mechanism (105), the other side of the upper end surface of the flow computer (104) is provided with wireless transmission mechanism (106).

2. The gas mass flow meter of claim 1, wherein, The first measuring mechanism (102) comprises a vortex flowmeter (10201), and the bottom end of the vortex flowmeter (10201) is connected with the upper end of the measuring tube (100).

3. The gas mass flow meter of claim 2, wherein, The bottom end of the vortex flowmeter (10201) is provided with a detection head (10203), the bottom end of the detection head (10203) extends to the inside through the measuring tube (100), and a vortex generator (10202) is installed.

4. The gas mass flow meter of claim 1, wherein, The second measuring mechanism (103) comprises a differential pressure transmitter (10301), the bottom end of the differential pressure transmitter (10301) is connected with the top end of the vortex flowmeter (10201), and the top end of the differential pressure transmitter (10301) is connected with the bottom end of the flow computer (104).

5. The gas mass flow meter of claim 4, wherein, One side of the differential pressure transmitter (10301) is provided with a pair of pressure lead pipes (10302), and the bottom ends of the pair of pressure lead pipes (10302) are connected with the pair of connecting pipes (107) respectively.

6. The gas mass flow meter of claim 1, wherein, The power supply mechanism (105) comprises a first connecting rod (10501), the top end of the first connecting rod (10501) is provided with a movable seat (10502), the inside of the movable seat (10502) is hinged with a solar panel (10503) through a pin shaft.

7. The gas mass flow meter of claim 1, wherein, The wireless transmission mechanism (106) comprises a connecting seat (10601), the upper end of the connecting seat (10601) is provided with a second connecting rod (10602), the top end of the second connecting rod (10602) is rotatably connected with a mounting seat (10603), one side of the mounting seat (10603) is provided with a signal transceiver (10604).

8. The gas mass flow meter of claim 1, wherein, The inside of the flow computer (104) is provided with a lithium battery and an inverter, and the lithium battery is electrically connected with the solar panel (10503) and the inverter through wires.

9. The gas mass flow meter of claim 1, wherein, The input and output ends of the flow computer (104) are in communication connection with the input and output ends of the signal transceiver (10604), the vortex flowmeter (10201) and the differential pressure transmitter (10301).

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