CN210464569U

CN210464569U - Integral type flue gas velocity of flow monitor

Info

Publication number: CN210464569U
Application number: CN201921426567.XU
Authority: CN
Inventors: 宋宪国; 靳庆桥; 万兆金
Original assignee: Shandong Lumeike Environmental Engineering Co Ltd
Current assignee: Shandong Lumeike Environmental Engineering Co Ltd
Priority date: 2019-08-30
Filing date: 2019-08-30
Publication date: 2020-05-05
Anticipated expiration: 2029-08-30

Abstract

The utility model discloses an integral type flue gas velocity of flow monitor, which comprises a housin, the one end of casing is equipped with the installing port, is equipped with air chamber and measuring chamber in the casing, the unit of making an uproar falls in the air chamber, the solid fixed cylinder of fixedly connected with on the lateral wall of measuring chamber, the solid fixed cylinder goes up the fixedly connected with cartridge filter, be equipped with the filter chamber in the cartridge filter. The utility model discloses a cooperation of preceding baffle, backplate, cartridge filter, water conservancy diversion awl, solid fixed cylinder, first rectification tube bank, second rectification tube bank, the device is through foretell fall make an uproar with the rectification process after, gaseous fluid stability obtains obvious reinforcing for not only need not install long straight pipeline, the installation of convenient device, economical and practical more, and can reduce the noise that produces when gaseous high-speed flows, precision when making ultrasonic detector carry out fluid flow measurement can obtain very big promotion.

Description

Integral type flue gas velocity of flow monitor

Technical Field

The utility model relates to a flue gas monitoring technology field especially relates to an integral type flue gas velocity of flow monitor.

Background

Thermal power generation is consuming a large amount of non-renewable resources on the earth while providing clean energy for human beings, and is also continuously generating a large amount of byproducts such as waste gas, waste water and waste residue, which increasingly pollutes the earth environment and finally brings disasters to human production and life.

Today, with increasing environmental pollution, various methods are being sought to control or reduce the pollution, including pretreatment of the solid emissions, on-line measurement of the flue gas emissions, and timely adjustment of boiler combustion and flue gas emissions.

However, the flow velocity of the flue gas fluid is very uneven, so that straight pipes need to be lengthened in front of the gas flow meter, the long straight pipes have great limitation in industrial practical application, the problems of insufficient space, unsatisfied length and the like often occur in field installation, and high-frequency noise is generated when the flue gas flows rapidly, the frequency of the high-frequency noise is close to the working frequency of the gas ultrasonic flow meter, so that the normal work of the gas ultrasonic flow meter is seriously influenced.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an integral type flue gas velocity of flow monitor, the fluidic velocity of flow of flue gas of solving to exist among the prior art is very inhomogeneous, consequently needs the preceding extension straight tube of flowmeter. The long straight pipes have great limitation in industrial practical application, the problems that the space is insufficient, the length does not meet the requirement and the like often occur in field installation, high-frequency noise is generated when smoke rapidly flows, the frequency of the high-frequency noise is close to the working frequency of the gas ultrasonic flowmeter, and therefore the normal work of the gas ultrasonic flowmeter is seriously influenced.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an integrated flue gas flow velocity monitor comprises a shell, wherein one end of the shell is provided with a mounting hole, an air chamber and a measuring chamber are arranged in the shell, a noise reduction unit is arranged in the air chamber, a fixed cylinder is fixedly connected onto the side wall of the measuring chamber, a filter cylinder is fixedly connected onto the fixed cylinder, a filter chamber is arranged in the filter cylinder, one end of the filter cylinder is provided with a flow guide cone, the flow guide cone seals one end of the filter cylinder, the other end of the filter cylinder is hermetically connected onto one end of the fixed cylinder, the fixed cylinder is provided with a first rectifying tube bundle and a second rectifying tube bundle, the first rectifying tube bundle is provided with a plurality of first axial through holes, the second tube bundle is provided with a plurality of second axial through holes, a buffer chamber is arranged between the first rectifying tube bundle and the second rectifying tube bundle, and two side walls of the measuring chamber are provided with a first mounting, a first ultrasonic probe is arranged in the first mounting groove, and a second ultrasonic probe is arranged in the second mounting groove.

Preferably, the noise reduction unit comprises second fixing rods symmetrically arranged, the second fixing rods are fixedly connected to the inner side wall of the shell, every second fixing rod deviates from a first fixing rod and two fixing rods fixedly connected to one ends of the shell, a plurality of front baffles and rear baffles are arranged in a hemispherical mode and connected to one ends of the first fixing rods, and the rear baffles are fixedly connected to the other ends of the second fixing rods.

Preferably, the outer side wall of the shell is provided with a heat insulation layer, and the heat insulation layer is uniformly paved on the outer side wall of the shell.

Preferably, fixedly connected with dangerous warning sign on the lateral wall of casing, dangerous warning sign is the rectangle setting, be equipped with phosphor powder on the dangerous warning sign.

Preferably, a plurality of LED illuminating lamps are arranged on the shell, and the LED illuminating lamps are symmetrically arranged.

Preferably, the shell is internally provided with an anticorrosive coating which is uniformly paved on the inner side wall of the shell.

Compared with the prior art, the beneficial effects of the utility model are that:

1. through the cooperation of preceding baffle, backplate, cartridge filter, water conservancy diversion awl, solid fixed cylinder, first rectification tube bank, second rectification tube bank, the device is through foretell fall make an uproar with the rectification process after, gaseous fluid stability obtains obvious reinforcing for not only need not install long straight pipeline, the installation of making things convenient for the device, more economical and practical, and the noise that produces when can reducing gaseous high-speed flow, precision when making ultrasonic detector carry out fluid flow measurement can obtain very big promotion.

2. Be provided with the insulating layer on the casing, the insulating layer is high silicon oxygen cotton, because the flue gas of high temperature can let the casing of device produce high temperature, the thermal transmission of insulating layer can reduce heat greatly, prevents that the touch casing from producing the scald.

Drawings

Fig. 1 is a schematic front structural view of an integrated flue gas flow velocity monitor provided by the present invention;

fig. 2 is the utility model provides a side structure schematic diagram of second rectifier bank in integral type flue gas velocity of flow monitor.

In the figure: the device comprises a mounting port 1, a shell 2, a first fixing rod 3, a gas chamber 4, a filter cylinder 5, a buffer chamber 6, a second rectifying tube bundle 7, a measuring chamber 8, a first ultrasonic probe 9, a second ultrasonic probe 10, a fixing cylinder 11, a first rectifying tube bundle 12, a filter chamber 13, a flow guide cone 14, a rear baffle 15, a second fixing rod 16, a front baffle 17 and a second axial through hole 18.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

Referring to fig. 1-2, an integrated flue gas flow velocity monitor comprises a housing 2, one end of the housing 2 is provided with a mounting port 1, the housing 2 is internally provided with a gas chamber 4 and a measuring chamber 8, the gas chamber 4 is internally provided with a noise reduction unit, the noise reduction unit comprises second fixing rods 16 which are symmetrically arranged, the second fixing rods 16 are fixedly connected to the inner side wall of the housing 2, one end of each second fixing rod 16, which is far away from the housing 2, is fixedly connected with a first fixing rod 3, one end of each first fixing rod 3 is provided with a plurality of front baffles 17 which are arranged in a hemispherical shape, the other end of each second fixing rod 16 is fixedly connected with a rear baffle 15, the front baffles 17 are in a hemispherical structure, can more easily allow turbulent gas fluid to pass through, and can not form secondary flow field disturbance, and are very beneficial to reducing the flow field disturbance, and a proper buffer space is, thus, the noise can be fully absorbed, the influence of the noise on the measurement precision is reduced, a fixed cylinder 11 is fixedly connected on the side wall of the measurement chamber 8, a filter cylinder 5 is fixedly connected on the fixed cylinder 11, a filter chamber 13 is arranged in the filter cylinder 5, one end of the filter cylinder 5 is provided with a flow guide cone 14, one end of the filter cylinder 5 is sealed by the flow guide cone 14, the other end of the filter cylinder 5 is hermetically connected with one end of the fixed cylinder 11, the fixed cylinder 11 is provided with a first rectifying tube bundle 12 and a second rectifying tube bundle 7, the first rectifying tube bundle 12 is provided with a plurality of first axial through holes, the second rectifying tube bundle 7 is provided with a plurality of second axial through holes 18, the first axial through holes and the second axial through holes 18 have the same size, the second rectifying tube bundle 7 is longer than the second rectifying tube bundle 7, a buffer chamber 6 is arranged between the first rectifying tube bundle 12 and the second rectifying tube bundle 7, a first mounting groove and a second mounting groove are, a first ultrasonic probe 9 is arranged in the first mounting groove, and a second ultrasonic probe 10 is arranged in the second mounting groove (wherein the first ultrasonic probe 9 and the second ultrasonic probe 10 are in the prior art, and the working principle thereof is not described in detail herein).

The outer side wall of the shell 2 is provided with a heat insulating layer which is uniformly laid on the outer side wall of the shell 2, the heat insulating layer is made of high-silicon cotton, the shell 2 of the device can generate high temperature due to high-temperature smoke, the heat transfer of heat can be greatly reduced by the heat insulating layer, the shell 2 is prevented from being touched to generate scald, the outer side wall of the shell 2 is fixedly connected with a dangerous warning board which is arranged in a rectangular shape, fluorescent powder is arranged on the dangerous warning board, non-professional personnel can be reminded by the dangerous warning board in daytime or at night, the dangerous warning board does not approach to equipment, smoke flowing through the device is prevented from being sucked into a respiratory tract to damage the body, the shell 2 is provided with a plurality of LED illuminating lamps which are symmetrically arranged, the LED illuminating lamps can ensure that the device can work at night, the light rays which are symmetrically arranged are wider, the sight is clearer, the anticorrosive paint is an anticorrosive paint chlorinated rubber paint, and can prevent corrosive smoke from corroding the shell 2.

In the utility model, the user installs the mounting port 1 of the device at the flue gas outlet of a factory, the flue gas firstly enters the air chamber 4 in the shell 2, the front baffle 17 in the air chamber 4 is of a hemispherical structure and can more easily let turbulent gas fluid pass through without forming secondary flow field disturbance, which is very beneficial to reducing the flow field disturbance, and a proper buffer space is reserved between the front baffle 17 and the rear baffle 15, so that the noise can be fully absorbed, the influence of the noise on the measurement precision is reduced, the gas enters the air chamber 4 and is redistributed in the air chamber 4 after expanding, and then becomes uniform and stable after passing through the filter cartridge 5, a buffer chamber 6 is arranged between the first rectifying tube bundle 12 and the second rectifying tube bundle 7, the rectifying tube bundle with an axial through hole structure is convenient to process and is beneficial to the passing of the gas fluid, and the reserved buffer chamber 6 can compensate the fluid, the gas flow velocity is stable after twice rectification in the filter chamber 13, the measurement accuracy is increased, finally, the second ultrasonic probe 10 transmits a signal to pass through a medium to the pipe wall at the other side, and the signal is received by the first ultrasonic probe 9, meanwhile, the signal transmitted by the first ultrasonic probe 9 is also received by the second ultrasonic probe 10, because the signal and the signal have time difference under the influence of the medium flow velocity, delta t can be calculated according to the time difference, the conversion relation V = (C2/2L). times.delta t between the flow velocity V and the time difference delta t can be obtained according to calculation, and further, the flow value Q can be obtained, after the device is subjected to the noise reduction and rectification processes, the gas fluid stability is obviously enhanced, so that a long straight pipeline is not required to be installed, the device is convenient to install, the device is more economic and practical, and the noise generated when the gas flows at high speed, the accuracy of the ultrasonic detector in fluid flow measurement can be greatly improved.

The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.

Claims

1. An integrated flue gas flow velocity monitor comprises a shell (2) and is characterized in that one end of the shell (2) is provided with a mounting port (1), an air chamber (4) and a measuring chamber (8) are arranged in the shell (2), a noise reduction unit is arranged in the air chamber (4), a fixed cylinder (11) is fixedly connected onto the side wall of the measuring chamber (8), a filter cylinder (5) is fixedly connected onto the fixed cylinder (11), a filter chamber (13) is arranged in the filter cylinder (5), one end of the filter cylinder (5) is provided with a guide cone (14), one end of the filter cylinder (5) is sealed by the guide cone (14), the other end of the filter cylinder (5) is hermetically connected onto one end of the fixed cylinder (11), the fixed cylinder (11) is provided with a first rectifying tube bundle (12) and a second rectifying tube bundle (7), a plurality of first axial through holes are formed in the first rectifying tube bundle (12), be equipped with a plurality of second axial through-holes (18) on second rectification tube bank (7), be equipped with between first rectification tube bank (12) and second rectification tube bank (7) surge chamber (6), be equipped with on the both sides wall of measuring chamber (8) and be the relative first mounting groove and the second mounting groove that sets up of slope, be equipped with first ultrasonic transducer (9) in the first mounting groove, be equipped with second ultrasonic transducer (10) in the second mounting groove.

2. The integrated flue gas flow velocity monitor as claimed in claim 1, wherein the noise reduction unit comprises second fixing rods (16) symmetrically arranged, the second fixing rods (16) are fixedly connected to the inner side wall of the housing (2), each second fixing rod (16) is fixedly connected with a first fixing rod (3) at one end deviating from the housing (2), a plurality of front baffles (17) arranged in a hemispherical shape are connected to one ends of the two first fixing rods (3), and a rear baffle (15) is fixedly connected to the other end of the two second fixing rods (16).

3. The integrated flue gas flow velocity monitor according to claim 1, wherein the outer side wall of the shell (2) is provided with a heat insulation layer, and the heat insulation layer is uniformly laid on the outer side wall of the shell (2).

4. The integrated flue gas flow velocity monitor according to claim 1, wherein a dangerous warning board is fixedly connected to the outer side wall of the housing (2), the dangerous warning board is rectangular, and fluorescent powder is arranged on the dangerous warning board.

5. The integrated flue gas flow velocity monitor according to claim 1, wherein a plurality of LED illuminating lamps are arranged on the shell (2) and are symmetrically arranged.

6. The integrated flue gas flow velocity monitor according to claim 1, wherein the shell (2) is provided with an anticorrosive paint, and the anticorrosive paint is uniformly laid on the inner side wall of the shell (2).