High-temperature and high-pressure medium flowmeter

Abstract

The utility model discloses a high-temperature and high-pressure medium flowmeter, which belongs to the technical field of flue gas flow detection equipment, and comprises a mounting block, a differential pressure transmitter, a valve, a connecting piece, a cooling assembly, a mounting piece, a connecting pipeline, a lifting sleeve and a fixing rod, the mounting pieces are arranged in pairs and mounted on the side wall of the connecting pipeline, one ends of the cooling assemblies are mounted in the mounting pieces, the other ends of the cooling assemblies are inserted into the connecting pieces, the lifting sleeves are arranged in pairs and are in transmission connection with the upper sides and the lower sides of the cooling assemblies, the valves are mounted on the side edges of the connecting pieces, the mounting blocks are mounted at the upper ends of the connecting pieces, and the differential pressure transmitters are inserted into the right side faces of the mounting blocks. The problem that in the prior art, due to the fact that the heat exchange area between an existing high-temperature and high-pressure medium flowmeter and the outside cannot be adjusted, temperature reduction is too obvious, and differential pressure measurement is affected is solved. The service life of the flowmeter is prolonged, and continuous measurement is guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of smoke flow detection equipment, in particular to a high-temperature and high-pressure medium flow meter. Background Art

[0002] For high-temperature and high-pressure media, when measuring flow rate and velocity, the flow meter may malfunction or be damaged in a short period of time due to its excessively high temperature. This requires a simple cooling process of the medium temperature before temperature measurement.

[0003] The existing method of cooling high-temperature and high-pressure media is to increase the distance for transporting the media to the pressure sensor, that is, to increase the pipeline. If only straight pipes are used for increase, the center of gravity will shift if the increase distance is too long, and it is easy to fall off. The general increase method is to set up curved pipes, but most of the time, high-temperature and high-pressure media contain a large amount of impurities, which can easily cause pipeline blockage. Another cooling method is to set a cylinder in the pipeline to temporarily store the medium through the cylinder and then cool it down. However, no matter which method is used, the cooling effect cannot be controlled, and sometimes the cooling degree is too large, affecting the pressure difference.

[0004] Therefore, how to provide a high-temperature and high-pressure medium flow meter to solve the problem that the existing flow meter cannot control the heat exchange area is a technical problem that needs to be solved urgently by technical personnel in this field. Utility Model Content

[0005] To this end, the utility model provides a high-temperature and high-pressure medium flow meter to solve the problem in the prior art that the existing high-temperature and high-pressure medium flow meter cannot adjust the heat exchange area with the outside world, resulting in excessively obvious temperature drop affecting the pressure difference measurement.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] The utility model discloses a high-temperature and high-pressure medium flow meter, comprising:

[0008] A connecting pipe is installed in the feeding pipeline, the front and rear ends of the connecting pipe are provided with first flanges, and a balancing orifice plate is provided inside the connecting pipe;

[0009] Mounting pieces are arranged in pairs and mounted on the side walls of the connecting pipes;

[0010] A cooling component, one end of which is mounted in the mounting member and the other end of which is inserted in the connecting member;

[0011] Lifting sleeves are arranged in pairs and are drivingly connected to the upper and lower sides of the cooling assembly;

[0012] A fixing rod, one end of which is fixed to the side wall of the connecting pipe and the other end is installed on the side of the connecting piece;

[0013] A plurality of valves are installed on the side of the connecting piece;

[0014] A mounting block, mounted on the upper end of the connector, wherein a differential pressure transmitter is inserted on the right side of the mounting block;

[0015] Among them, one end of the cooling component is arranged in the connecting pipe, and the end of the cooling component is arranged on the front and rear sides of the balancing orifice plate.

[0016] In a possible implementation, the cooling component includes:

[0017] A feed pipe, the pipe body of which is sleeved with a second flange, the second flange is provided with a plurality of threaded holes, and fixing bolts are inserted into the threaded holes;

[0018] The barrel body has a round hole on its side wall, and one end of a feed pipe is inserted into the round hole;

[0019] First baffles are arranged in pairs and installed in the barrel body, and a hollow structure is formed between the two first baffles;

[0020] Lifting slides are arranged in pairs and are opened in the barrel body. The lifting slides are connected to the hollow structure. The lifting sleeves are drivingly connected between the lifting slides and the hollow structure.

[0021] A stopper is arranged in the barrel, and the stopper is arranged between the two lifting slideways;

[0022] A discharge pipe has one end inserted in the barrel body and the other end inserted in the connecting piece.

[0023] In a possible implementation, a plurality of blocks are provided at the upper and lower ends of the barrel body, and the blocks are provided at the ends of the lifting slide.

[0024] In a possible implementation, the lifting sleeve includes:

[0025] A housing, drivingly connected to the cooling assembly;

[0026] A top plate mounted at one end of the housing;

[0027] A second baffle is installed in the shell, two cooling spaces are formed between the second baffle, the shell and the top plate, and a small hole is opened on the second baffle;

[0028] A discharge pipe is installed in the small hole, and a filter screen is installed at one end of the discharge pipe;

[0029] The movable slideways are arranged in pairs and are opened on the outer surface of the shell.

[0030] In a possible implementation, the filter screen is made of metal.

[0031] In one possible implementation, a positive pressure pipeline and a negative pressure pipeline are provided inside the connecting piece, and the positive pressure pipeline and the negative pressure pipeline extend upward to the pressure sensor in the mounting block. The pressure sensor and the differential pressure transmitter are connected by a wire, and one end of the valve is inserted in the positive pressure pipeline and the negative pressure pipeline.

[0032] The utility model firstly changes the pressure through a balancing orifice plate so that the pressure difference in the two cooling components is different. The purpose of setting the cooling components is to increase the heat exchange area. For a medium with a higher temperature, the pressure will also be very large. The larger pressure will push the two lifting sleeves to move, thereby increasing the heat exchange area again. When the pressure is smaller, the lifting sleeves cannot be pushed to move. In this way, the pressure generated for different media can adapt to different heat exchange areas, ensuring that the medium temperature will not change greatly but will not burn the differential pressure transmitter. This not only ensures the continuous measurement of the medium flow rate, but also increases the service life of the flow meter. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0034] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment of size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0035] Figure 1 A three-dimensional diagram of a high-temperature and high-pressure medium flow meter provided by the utility model;

[0036] Figure 2 A cross-sectional view of a cooling component provided by the utility model;

[0037] Figure 3 A three-dimensional diagram of the lifting sleeve provided by the utility model;

[0038] In the figure: 1 mounting block; 2 differential pressure transmitter; 3 valve; 4 connecting piece; 5 cooling assembly; 51 barrel; 52 discharge pipe; 53 first baffle; 54 lifting slide; 55 feed pipe; 56 fixing bolt; 57 second flange; 58 baffle; 6 mounting piece; 7 connecting pipe; 8 lifting sleeve; 81 second baffle; 82 housing; 83 moving slide; 84 top plate; 85 discharge pipe; 9 fixing rod. DETAILED DESCRIPTION

[0039] The following is a specific embodiment of the present invention. People familiar with the technology can easily understand the other advantages and functions of the present invention from the contents disclosed in this specification. Obviously, the described embodiment is a part of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0040] Please refer to Figure 1-Figure 3 Now, a high temperature and high pressure medium flow meter disclosed in the utility model is described. The utility model is composed of nine parts, such as Figure 1 , including a mounting block 1, a differential pressure transmitter 2, a valve 3, a connector 4, a cooling component 5, a mounting component 6, a connecting pipe 7, a lifting sleeve 8 and a fixing rod 9. The connecting pipe 7 is installed in the feeding pipeline. The connecting pipe 7 is provided with a first flange at both ends thereof. A balancing orifice plate is provided inside the connecting pipe 7. The mounting components 6 are arranged in pairs and are installed on the side wall of the connecting pipe 7. One end of the cooling component 5 is installed in the mounting component 6, and the other end is inserted in the connecting component 4. The lifting sleeve 8 is arranged in pairs and is transmission-connected to the upper and lower sides of the cooling component 5. One end of the fixing rod 9 is fixed on the side wall of the connecting pipe 7, and the other end is installed on the side of the connecting component 4. Several valves 3 are installed on the side of the connecting component 4. The mounting block 1 is installed on the upper end of the connecting component 4. The differential pressure transmitter 2 is inserted on the right side of the mounting block 1. One end of the cooling component 5 is arranged in the connecting pipe 7, and the ends of the cooling component 5 are arranged on the front and rear sides of the balancing orifice plate.

[0041] When the utility model is in use, the connecting pipe 7 is installed in the entire feeding pipeline through the first flange, and the medium will first flow into a cooling component 5, and then pass through the diameter change of the balancing orifice plate to flow the medium after the pressure change to another cooling component 5. The medium flows into the cooling component 5. According to the ideal gas state equation, pressure is proportional to temperature. The higher the temperature of the medium, the greater the pressure. The pressure will push the lifting sleeve 8 to move, increase the heat exchange area between the medium and the outside world, and then improve the cooling effect. The cooled medium flows through the connector 4 and reaches the pressure sensor. The pressure sensor transmits the pressure signal to the differential pressure transmitter 2.

[0042] In this embodiment, a positive pressure pipeline and a negative pressure pipeline are provided inside the connector 4, and the positive pressure pipeline and the negative pressure pipeline extend upward to the pressure sensor in the mounting block 1, and the pressure sensor is connected to the differential pressure transmitter 2 through a wire, and one end of the valve 3 is inserted in the positive pressure pipeline and the negative pressure pipeline. The positive pressure pipeline and the negative pressure pipeline are respectively connected to one end of two cooling components 5, and the medium after a certain cooling treatment flows to the positive pressure pipeline and the negative pressure pipeline through the cooling component 5, and then flows along the positive pressure pipeline and the negative pressure pipeline to the pressure sensor for pressure data collection, and then the pressure data is transmitted to the differential pressure transmitter 2 through the wire, and finally the pressure signal is converted into a pressure difference signal for use.

[0043] In a specific embodiment, Figure 2 The cooling component 5 includes a barrel body 51, a discharge pipe 52, a first baffle 53, a lifting slide 54, a feed pipe 55, a fixing bolt 56, a second flange 57 and a stopper 58. The feed pipe 55 is sleeved with a second flange 57, and the second flange 57 is provided with a plurality of threaded holes, and fixing bolts 56 are inserted into the threaded holes. A round hole is provided on the side wall of the barrel body 51, and one end of the feed pipe 55 is inserted into the round hole. The first baffles 53 are arranged in pairs and installed in the barrel body 51. A hollow structure is formed between the two first baffles 53. The lifting slides 54 are arranged in pairs and opened in the barrel body 51. The lifting slides 54 are connected to the hollow structure. A lifting sleeve 8 is drivingly connected to the lifting slide 54 and the hollow structure. The stopper 58 is arranged in the barrel body 51, and the stopper 58 is arranged between the two lifting slides 54. One end of the discharge pipe 52 is inserted in the barrel body 51, and the other end is inserted in the connecting member 4. By cooperating with the second flange 57 and the fixing bolts 56, the insertion depth of the feed pipe 55 in the connecting pipe 7 can be changed, and the two first baffles 53 are used to divide the interior of the barrel body 51 into two parts, which can effectively retain the medium in the barrel body 51 for a short period of time, thereby facilitating the medium cooling operation. The lifting slide 54 is designed to change the position of the lifting sleeve 8, and the block 58 can limit the moving distance of the lifting sleeve 8. The discharge pipe 52 is designed to be curved in order to increase the flow length of the medium and cool the medium again. However, due to the high pressure and fast flow of the medium, this curved pipe does not actually produce much cooling effect on the medium.

[0044] On the basis of the previous embodiment, a plurality of blocks are arranged at the upper and lower ends of the barrel body 51, and the blocks are arranged at the ends of the lifting slideway 54. The effect produced by the blocks is the same as that of the stopper 58, which is also to limit the moving position of the lifting sleeve 8 and prevent the lifting sleeve 8 from slipping.

[0045] In a specific embodiment, Figure 3The lifting sleeve 8 includes a second baffle 81, an outer shell 82, a movable slide 83, a top plate 84 and a discharge pipe 85. The outer shell 82 is transmission-connected to the cooling component 5. The top plate 84 is installed at one end of the outer shell 82. The second baffle 81 is installed in the outer shell 82. Two cooling spaces are formed between the second baffle 81, the outer shell 82 and the top plate 84. A small hole is opened on the second baffle 81. The discharge pipe 85 is installed in the small hole. A filter screen is installed at one end of the discharge pipe 85. The movable slides 83 are arranged in pairs and are opened on the outer surface of the outer shell 82. The medium entering the barrel body 51 will generate thrust on the top plate 84 according to its pressure conditions, causing the entire lifting sleeve 8 to move. At this time, when the lifting sleeve 8 moves, the block will only move in the moving slide 83. When the movement is completed, the heat exchange area changes. After simple heat exchange, the medium enters from one cooling space through the discharge pipe 85 to another cooling space for secondary cooling. The cooled medium flows out from the discharge pipe 52.

[0046] Based on the previous embodiment, the filter screen is made of metal. The purpose of using the filter screen is first because the medium will flow into the curved pipe, and the filter screen is first used to filter out large particles of impurities in the medium to prevent the large particles of impurities from clogging the curved position. The metal material is used because the entire medium is a high-temperature medium, and the metal material has good high temperature resistance and is not easy to corrode, which makes the filter screen have a longer service life.

[0047] Although the utility model has been described in detail above with general descriptions and specific embodiments, it is obvious to those skilled in the art that some modifications or improvements can be made to the utility model. Therefore, these modifications or improvements made without departing from the spirit of the utility model are within the scope of protection claimed by the utility model.

Claims

1. A high temperature and high pressure medium flow meter, characterized in that: include: A connecting pipe (7) is installed in the feeding pipeline, and first flanges are arranged at the front and rear ends of the connecting pipe (7), and a balancing orifice plate is arranged inside the connecting pipe (7); Mounting members (6), arranged in pairs and mounted on the side walls of the connecting pipe (7); A cooling component (5), one end of which is mounted in the mounting member (6) and the other end of which is inserted in the connecting member (4); Lifting sleeves (8) are arranged in pairs and are drivingly connected to the upper and lower sides of the cooling component (5); A fixing rod (9), one end of which is fixed to the side wall of the connecting pipe (7) and the other end of which is installed on the side of the connecting piece (4); A plurality of valves (3) installed on the side of the connecting piece (4); A mounting block (1) is mounted on the upper end of the connecting member (4), and a differential pressure transmitter (2) is inserted into the right side of the mounting block (1); One end of the cooling component (5) is arranged in the connecting pipe (7), and the ends of the cooling component (5) are arranged on the front and rear sides of the balancing orifice plate.

2. The high temperature and high pressure medium flow meter according to claim 1, characterized in that: The cooling component (5) comprises: A feed pipe (55) is sleeved with a second flange (57) on its body, the second flange (57) is provided with a plurality of threaded holes, and fixing bolts (56) are inserted into the threaded holes; The barrel (51) has a round hole on its side wall, and one end of a feed pipe (55) is inserted into the round hole; First baffles (53) are arranged in pairs and installed in the barrel body (51), and a hollow structure is formed between the two first baffles (53); The lifting slides (54) are arranged in pairs and are opened in the barrel body (51); the lifting slides (54) are connected to the hollow structure; the lifting sleeve (8) is drivingly connected between the lifting slides (54) and the hollow structure; a stopper (58) disposed in the barrel (51), wherein the stopper (58) is disposed between the two lifting slideways (54); A discharge pipe (52) has one end inserted into the barrel body (51) and the other end inserted into the connecting member (4).

3. The high temperature and high pressure medium flow meter according to claim 2, characterized in that: A plurality of clamping blocks are arranged at the upper and lower ends of the barrel body (51), and the clamping blocks are arranged at the ends of the lifting slideway (54).

4. The high temperature and high pressure medium flow meter according to claim 1, characterized in that: The lifting sleeve (8) comprises: A housing (82) drivingly connected to the cooling assembly (5); A top plate (84) mounted on one end of the housing (82); A second baffle (81) is installed in the shell (82), two cooling spaces are formed between the second baffle (81), the shell (82) and the top plate (84), and a small hole is opened on the second baffle (81); A discharge pipe (85) is installed in the small hole, and a filter screen is installed at one end of the discharge pipe (85); The movable slideways (83) are arranged in pairs and are opened on the outer surface of the shell (82).

5. The high temperature and high pressure medium flow meter according to claim 4, characterized in that: The filter screen is made of metal.

6. The high temperature and high pressure medium flow meter according to claim 1, characterized in that: A positive pressure pipeline and a negative pressure pipeline are arranged inside the connecting piece (4), and the positive pressure pipeline and the negative pressure pipeline extend upward to the pressure sensor in the mounting block (1). The pressure sensor and the differential pressure transmitter (2) are connected via a wire, and one end of the valve (3) is inserted into the positive pressure pipeline and the negative pressure pipeline.

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