CN204177426U - Plug-in type one-piece type temperature and pressure compensation holder hand shaft flowmeter - Google Patents

Abstract

The utility model relates to the holder hand shaft flowmeter of the one-piece type temperature and pressure compensation of a kind of plug-in type, comprise differential pressure transmitter, measure three valve groups, pressure transducer, T-valve, mounting flange, mounting seat, holder hand shaft flowmeter, tested pipeline, differential pressure output module and thermal resistance, mounting seat one end is welded on tested pipeline, and the other end is threaded with mounting flange; Holder hand shaft flowmeter is inserted in tested pipeline by mounting flange and mounting seat, is fixed by mounting flange, and holder hand shaft flowmeter upper end connects a differential pressure output module.A thermal resistance is installed in differential pressure output module side, and opposite side is connected with pressure transducer by a T-valve.Differential pressure output module top connects one and measures three valve groups, and differential pressure transmitter is arranged on measurement three valve group top; Its one-piece construction decreases pressure guiding pipe and lays the annexes such as facility, installs simple, is convenient to safeguard; The parameters of sensor element to pipeline internal medium is measured in real time, ensure that the accuracy of measurement.

Description

Plug-in integrated temperature and pressure compensation Toba tube flowmeter

technical field

The utility model relates to the technical field of fluid flow measurement, in particular to a plug-in integrated temperature and pressure compensation Toba tube flowmeter.

Background technique

The flow rate of gas is greatly affected by environmental factors such as temperature and pressure. When using a flowmeter to measure the flow rate, if the influence of temperature and pressure is not considered, the obtained result will have a large deviation from the correct result, and it may even produce an order of magnitude Therefore, correct temperature and pressure compensation must be performed on the measurement results to obtain correct gas flow measurement data.

At present, the compensation method of many gas flow measurement is to add temperature, pressure and other acquisition components outside the original measurement system, and transmit the signal to the integrator and other equipment for gas density compensation calculation. The advantage is that the structure of each measurement part should be simple. The disadvantage is that the system components are scattered. Adding a sensor on the pipeline requires drilling and welding to fix it, which doubles the workload. At the same time, the increase in components and connectors makes the debugging and maintenance of the entire system very troublesome. Leakage and other failures are prone to occur.

Utility model content

The purpose of this utility model is to provide a new plug-in integrated temperature and pressure compensation flowmeter to solve the above-mentioned problems. The utility model rationally distributes the spatial positions of various measuring elements, makes all the components form a measuring whole, and measures temperature, pressure and differential pressure at the same time, and has the advantages of convenient operation, economical maintenance and accurate measurement.

For realizing above-mentioned object, the technical scheme that the utility model adopts is:

The plug-in integrated temperature and pressure compensation flowmeter described in the utility model includes a differential pressure transmitter, a measuring three-valve group, a pressure sensor, a three-way valve, a mounting flange, a mounting base, a toba tube flowmeter, and a differential pressure output Module and thermal resistance; the installation base is welded on the pipeline under test, and the other end is connected to the installation flange through threads; the Toba tube flowmeter is inserted into the pipeline under test through the installation flange and the installation base, and is connected by the installation flange Fixed; the differential pressure output module is installed on the upper end of the Toba tube flowmeter, a thermal resistor is installed on one side of the differential pressure output module, a three-way valve is connected to the other side, and a pressure sensor is installed on the outside of the three-way valve; the differential pressure The top of the output module is connected with a measuring three-valve group, and a differential pressure transmitter is installed on the top of the measuring three-valve group.

Description of drawings

Figure 1 is the overall structure diagram of the plug-in integrated temperature and pressure compensation Toba tube flowmeter;

Explanation of reference signs:

1. Differential pressure transmitter; 2. Measuring three-valve group; 3. Pressure sensor; 4. Three-way valve; 5. Mounting flange; 6. Mounting base; 7. Toba tube flowmeter; ; 9, differential pressure output module; 10, thermal resistance. the

Detailed ways

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1, the plug-in integrated temperature and pressure compensation Toba tube flowmeter includes a differential pressure transmitter 1, a measuring three-valve group 2, a pressure sensor 3, a three-way valve 4, a mounting flange 5, and a mounting base 6. Toba tube flowmeter 7 , measured pipeline 8 , differential pressure output module 9 and thermal resistance 10 .

One end of the mounting base 6 is welded on the outer wall of the measured pipeline 8, and the other end is connected to the mounting flange 5 through threads. The toba tube flowmeter 7 is inserted into the measured pipeline 8 through the installation flange 5, the installation base 6 and the opening on the pipe wall of the measured pipeline 8, and is adjusted so that the full pressure pressure hole is aligned with the incoming flow direction of the pipeline and passed through The mounting flange 5 is fixed, and a differential pressure output module 9 is connected to the upper end of the Toba tube flowmeter 7 . A thermal resistor 10 is installed on one side of the differential pressure output module 9 to collect medium temperature information, and the other side is connected to a pressure sensor 3 through a three-way valve 4, and the pressure sensor 3 is used to collect medium pressure information. A measuring three-valve group 2 is connected above the differential pressure output module 9 , and the differential pressure transmitter 1 is installed on the top of the three-valve group 2 .

The temperature and pressure sensor elements on the plug-in integrated temperature and pressure compensation toba tube flowmeter are assembled with the toba tube flowmeter. The installation process does not need to open holes in the pipeline, which greatly reduces the difficulty of installation and reduces the operation process. Has good applicability. The measured values of the pressure sensor and the temperature sensor are all real-time data of the fluid in the pipeline, which ensures the accuracy of the measurement.

The above is only a preferred embodiment of the utility model, so all equivalent changes or modifications made according to the structure, features and principles described in the utility model patent application scope are all included in the utility model patent application scope .

Claims (1)

1. plug-in type one-piece type temperature and pressure compensation holder hand shaft flowmeter, it is characterized in that: it comprises differential pressure transmitter (1), measures three valve groups (2), pressure transducer (3), T-valve (4), mounting flange (5), mounting seat (6), holder hand shaft flowmeter (7), tested pipeline (8), differential pressure output module (9), thermal resistance (10), mounting seat (6) is welded on tested pipeline (8), and mounting seat (6) other end is threaded with mounting flange (5); Holder hand shaft flowmeter (7) is inserted into tested pipeline (8) by mounting flange (5) and mounting seat (6) and is fixed by mounting flange (5); Holder hand shaft flowmeter (7) upper end connects a differential pressure output module (9), a thermal resistance (10) is installed in differential pressure output module (9) side, opposite side connects a T-valve (4), and a pressure transducer (3) is installed in T-valve (4) outside; Differential pressure output module (9) top connects one and measures three valve groups (2), and differential pressure transmitter (1) is arranged on the top of measurement three valve group (2).