Ultrasonic gas detection device

Abstract

The utility model discloses an ultrasonic gas detection device which comprises a device box body, a gas inlet pipe is fixedly installed on one side of the device box body, an exhaust pipe is fixedly installed on the other side of the device box body, and an ultrasonic detector is fixedly installed above the device box body. The lower end of the ultrasonic detector extends into the device box, a first flow guide table is arranged in the middle of one side in the device box and located on one side of the air inlet pipe, second flow guide tables are arranged on the upper portion, the lower portion and the two sides of one side of the first flow guide table, and the first flow guide table and the second flow guide tables are conical. A cleaning block is arranged on one side of the upper portion of the interior of the device box, and a plurality of sets of bristles are fixedly installed on the upper portion of the cleaning block. The gas flow uniformity is improved, and the practicability is improved, so that the problems of non-uniform gas flow and inaccurate measurement are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of detection device, concretely to an ultrasonic gas detection device. BACKGROUND

[0002] The ultrasonic gas detection device is a kind of equipment using ultrasonic technology to detect and analyze gas characteristics, extracts information related to gas characteristics, such as gas concentration, flow rate, flow direction, etc., which plays an important role in industrial safety, environmental monitoring, energy management and other fields;

[0003] For example, the authorized patent (ultrasonic gas concentration measuring device) with announcement number CN213658642U: including the gas chamber cavity that is hollowly arranged and has gas inlet and gas outlet, ultrasonic transducer for emitting and receiving ultrasonic signal, multiple temperature sensors for measuring the temperature of multiple measured gases in the gas chamber cavity, and temperature sensor for obtaining the concentration of measured gas according to the time of flight of ultrasonic signal emitted by ultrasonic transducer and the temperature data detected by multiple temperature sensors;

[0004] The above prior art, although multiple temperature sensors are arranged in the gas chamber cavity, adopts multiple temperature sensors and multiple point temperature measurement method, but does not have gas distribution structure, and the gas flow is most concentrated in the middle, as the distance from the middle increases, the gas flow density will decrease, and the gas flow is uneven, so that the propagation path of ultrasonic wave changes, and the propagation speed is also affected, resulting in inaccurate measurement;Therefore, the market urgently needs to develop an ultrasonic gas detection device to help people solve the existing problems. UTILITY MODEL CONTENT

[0005] The utility model aims at providing an ultrasonic gas detection device to solve the problem of uneven gas flow in the above background technology, which changes the propagation path of ultrasonic wave and affects the propagation speed, resulting in inaccurate measurement.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: an ultrasonic gas detection device, comprising a device box, a gas inlet pipe is fixedly installed on one side of the device box, an exhaust pipe is fixedly installed on the other side of the device box, an ultrasonic detector is fixedly installed on the top of the device box, the lower end of the ultrasonic detector extends into the interior of the device box, a flow guide table one is arranged in the middle of one side of the interior of the device box, the flow guide table one is located on one side of the gas inlet pipe, flow guide table two is arranged on the top, bottom and both sides of one side of the flow guide table one, and the flow guide table one and the flow guide table two are both conical.

[0007] Preferably, one side of the upper part of the device box is provided with a cleaning block, a plurality of brush hairs are fixedly installed on the upper part of the cleaning block, a groove is fixedly installed on one side of the cleaning block, and an electric cylinder is fixedly installed on one side of the device box.

[0008] Preferably, a bottom plate is fixedly installed below the cleaning block, guide columns are arranged below the electric cylinder, and one end of the guide columns is slidably extended into the interior of the device box and is fixedly connected with the bottom plate.

[0009] Preferably, an inner cavity is arranged in the cleaning block, a plurality of air inlets are arranged on the upper end face of the cleaning block, and the inner cavity is communicated with the air inlets.

[0010] Preferably, a dust collector is fixedly installed on the upper part of the device box, a conveying hose is arranged in the groove, one end of the conveying hose is fixedly connected with the cleaning block and is communicated with the inner cavity.

[0011] Preferably, temperature sensors are symmetrically fixedly installed on both sides of the lower part of the device box.

[0012] Preferably, installation rods one are symmetrically fixedly installed above and below the first flow guide table, one end of the installation rod one away from the first flow guide table is fixedly connected with the device box, installation rods two are fixedly installed on the outer sides of the four second flow guide tables, one end of the installation rod two away from the second flow guide table is fixedly connected with the device box, a connecting rod frame is fixedly installed between the four second flow guide tables, and the connecting rod frame is arranged in a cross shape.

[0013] Compared with the prior art, the device has the following beneficial effects:

[0014] (1) The first flow guide table and the second flow guide table are arranged in the device box, the first flow guide table is located on one side of the air inlet pipe, the upper part, the lower part and the two sides of one side of the first flow guide table are all provided with the second flow guide table, the gas entering the device box can be guided, the gas is more evenly distributed in the device box, the situation that the gas flow is most concentrated in the middle, the gas flow density continuously decreases with the increase of the distance from the middle, and the gas flow is uneven is avoided, and therefore the measurement accuracy of the ultrasonic gas detection device is improved.

[0015] (2) The cleaning block and the electric cylinder are arranged, the cleaning block is driven to move by the electric cylinder, the brush hairs can automatically clean the surface of the detector, the sensitivity is maintained, and the measurement error caused by pollution is reduced.

[0016] (3) The utility model discloses a cleaning block inside setting inner chamber and air inlet, and through the conveying hose with the air suction end of dust catcher is connected, when the brush on the cleaning block cleans the dust, impurity etc. from the surface of ultrasonic detector, these sundries can be inhaled into the inner chamber through the air inlet, then are sucked away by dust catcher, avoid secondary pollution, be favorable to ensuring that ultrasonic detector is in the best working condition, increase practicality. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a schematic diagram of an ultrasonic gas detection device of the utility model;

[0018] Figure 2 It is a sectional view of the device box of the utility model;

[0019] Figure 3 It is a side view of the second flow guide platform of the utility model;

[0020] Figure 4 It is a sectional view of the cleaning block of the utility model.

[0021] In the drawing: 1, device box;2, inlet pipe;3, exhaust pipe;4, ultrasonic detector;5, dust catcher;6, electric cylinder;7, first flow guide platform;8, mounting rod one;9, second flow guide platform;10, mounting rod two;11, connecting rod frame;12, temperature sensor;13, cleaning block;1301, inner chamber;1302, air inlet;14, groove;15, conveying hose;16, bottom plate;17, guide column;18, brush. DETAILED DESCRIPTION

[0022] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, and obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments.

[0023] Please refer to Figures 1-4 The utility model provides an embodiment: an ultrasonic gas detection device, including device box 1, one side of device box 1 is fixedly installed with inlet pipe 2, the other side of device box 1 is fixedly installed with exhaust pipe 3, the top of device box 1 is fixedly installed with ultrasonic detector 4, ultrasonic detector 4 is set to be the all-in-one device of transmitter and receiver, and the lower end of ultrasonic detector 4 extends into the inside of device box 1, and the middle of one side in the inside of device box 1 is provided with first flow guide platform 7, and first flow guide platform 7 is located on one side of inlet pipe 2, and the top, the bottom and both sides of one side of first flow guide platform 7 are all provided with second flow guide platform 9, and first flow guide platform 7 and second flow guide platform 9 are all provided with taper.

[0024] When the gas enters the device box 1, the guide table one 7 first divides the central gas, and the guide table two 9 distributed on the upper and lower sides and the two sides further guide the gas flow to diffuse to the edge area of the cavity, forming a more uniform flow distribution, and the multi-stage guide structure improves the measurement accuracy, and the inclined surface design of the guide table realizes uniform distribution of the gas flow while maintaining good flow performance and increasing practicability.

[0025] Please refer to Figure 2 and Figure 3 , the upper side of the inside of the device box 1 is provided with a cleaning block 13, a plurality of bristles 18 are fixedly installed on the upper side of the cleaning block 13, a groove 14 is fixedly installed on one side of the cleaning block 13, and an electric cylinder 6 is fixedly installed on one side of the device box 1. The push rod end of the electric cylinder 6 slides into the inside of the device box 1 and is fixedly connected with the groove 14.

[0026] The cleaning block 13 is driven to move by the electric cylinder 6, and the bristles 18 can automatically clean the surface of the detector to maintain its sensitivity, reduce measurement errors caused by pollution, and increase practicability.

[0027] Please refer to Figure 2 and Figure 3 , a bottom plate 16 is fixedly installed below the cleaning block 13, a guide column 17 is arranged below the electric cylinder 6, and one end of the guide column 17 slides into the inside of the device box 1 and is fixedly connected with the bottom plate 16.

[0028] The cooperation of the guide column 17 and the bottom plate 16 improves the stability and precision of the movement of the cleaning block 13, and increases practicability.

[0029] Please refer to Figure 2 and Figure 3 , an inner cavity 1301 is arranged in the cleaning block 13, a plurality of air inlets 1302 are arranged on the upper end face of the cleaning block 13, the inner cavity 1301 is in communication with the air inlets 1302, a dust collector 5 is fixedly installed on the upper side of the device box 1, a conveying hose 15 is arranged in the groove 14, one end of the conveying hose 15 is fixedly connected with the cleaning block 13 and is in communication with the inner cavity 1301, and the other end of the conveying hose 15 is connected with the air suction end of the dust collector 5.

[0030] The dust collector is in communication with the inner cavity 1301 of the cleaning block 13 through the conveying hose 15, when the bristles 18 on the cleaning block 13 clean dust, impurities and the like from the surface of the ultrasonic detector 4, the impurities can be sucked into the inner cavity through the air inlets 1302 and then sucked away by the dust collector 5, so that secondary pollution is avoided, the ultrasonic detector 4 is kept in the best working state, and long-term measurement accuracy is improved.

[0031] Please refer to Figure 2The temperature sensor 12 is arranged as a PT100 temperature sensor.

[0032] The temperature sensor 12 can monitor the gas temperature in real time, provide temperature data for gas detection, and increase practicability.

[0033] Please refer to Figure 2 and Figure 4 The upper and lower parts of the flow guide table one 7 are symmetrically fixedly provided with mounting rods one 8, one end of the mounting rod one 8 away from the flow guide table one 7 is fixedly connected with the device box 1, the outer sides of the four flow guide tables two 9 are fixedly provided with mounting rods two 10, one end of the mounting rod two 10 away from the flow guide table two 9 is fixedly connected with the device box 1, and the four flow guide tables two 9 are fixedly provided with a connecting rod frame 11, and the connecting rod frame 11 is arranged in a cross shape.

[0034] The mounting rods one 8 and the mounting rods two 10 fixedly connect the flow guide table one 7 and the flow guide table two 9 with the device box 1, enhance the stability of the flow guide table in the device, prevent the flow guide table from shaking or moving during the gas flow, and ensure the normal operation of the flow guide structure.

[0035] Working principle: when in use, the gas enters the device box 1 through the gas inlet pipe 2, is preliminarily distributed by the conical flow guide table one 7, is then further guided by the flow guide tables two 9 arranged on the upper and lower parts and the two sides to diffuse towards the edge of the cavity, the uniformity of the gas flow is improved, then the ultrasonic detector 4 works, the gas parameters are detected by measuring the propagation characteristics of ultrasonic waves in the gas, the temperature sensor 12 arranged in real time monitors the gas temperature, provides temperature data for the measurement result, when cleaning is needed, the electric cylinder 6 pushes the cleaning block 13 to move stably along the guide column 17, the bristles 18 clean the surface of the detector, and the dust collector 5 sucks away the removed pollutants through the suction port 1302 and the conveying hose 15, and practicability is increased.

[0036] It is obvious for those skilled in the art that the utility model is not limited to the details of the above-mentioned exemplary embodiments, and the utility model can be realized in other specific forms without departing from the spirit or basic characteristics of the utility model. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-limiting, the scope of the utility model is defined by the appended claims instead of the above description, and therefore all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the utility model. Any reference signs in the claims should not be regarded as limiting the involved claims.

Claims

1. An ultrasonic gas detection device, comprising a device housing (1), characterized in that: An air inlet pipe (2) is fixedly installed on one side of the device housing (1), and an exhaust pipe (3) is fixedly installed on the other side of the device housing (1). An ultrasonic detector (4) is fixedly installed on the top of the device housing (1). The lower end of the ultrasonic detector (4) extends into the interior of the device housing (1). A flow guide platform (7) is provided in the middle of one side of the interior of the device housing (1). The flow guide platform (7) is located on one side of the air inlet pipe (2). Flow guide platforms (9) are provided above, below and on both sides of the flow guide platform (7). Both the flow guide platform (7) and the flow guide platform (9) are conical.

2. The ultrasonic gas detection device according to claim 1, characterized in that: A cleaning block (13) is provided on one side of the upper part of the device housing (1). Multiple sets of brush bristles (18) are fixedly installed on the upper part of the cleaning block (13). A groove (14) is fixedly installed on one side of the cleaning block (13). An electric cylinder (6) is fixedly installed on one side of the device housing (1). The push rod end of the electric cylinder (6) slides into the interior of the device housing (1) and is fixedly connected to the groove (14).

3. The ultrasonic gas detection device according to claim 2, characterized in that: A base plate (16) is fixedly installed below the cleaning block (13), and a guide post (17) is provided below the electric cylinder (6). One end of the guide post (17) slides into the interior of the device housing (1) and is fixedly connected to the base plate (16).

4. The ultrasonic gas detection device according to claim 3, characterized in that: The cleaning block (13) has an inner cavity (1301) inside, and a plurality of air inlets (1302) are provided on the upper surface of the cleaning block (13). The inner cavity (1301) is connected to the air inlets (1302).

5. The ultrasonic gas detection device according to claim 4, characterized in that: A vacuum cleaner (5) is fixedly installed on the top of the device housing (1), and a conveying hose (15) is provided inside the tank (14). One end of the conveying hose (15) is fixedly connected to the cleaning block (13) and communicates with the inner cavity (1301).

6. The ultrasonic gas detection device according to claim 1, characterized in that: Temperature sensors (12) are symmetrically fixed on both sides of the lower part of the device housing (1).

7. The ultrasonic gas detection device according to claim 1, characterized in that: Mounting rods 1 (8) are symmetrically fixedly installed above and below the first flow guide (7). The end of the mounting rod 1 (8) away from the first flow guide (7) is fixedly connected to the device housing (1). Mounting rods 2 (10) are fixedly installed on the outer side of the four second flow guides (9). The end of the mounting rod 2 (10) away from the second flow guide (9) is fixedly connected to the device housing (1). Connecting rod frames (11) are fixedly installed between the four second flow guides (9). The connecting rod frames (11) are arranged in a cross shape.

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