CN211784614U

CN211784614U - Automatic constant-temperature constant-current continuous air sampler

Info

Publication number: CN211784614U
Application number: CN202020458119.4U
Authority: CN
Inventors: 黄建科; 陈清谊
Original assignee: Fujian Donghai Testing Technology Co ltd
Current assignee: Fujian Donghai Testing Technology Co ltd
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2020-10-27
Anticipated expiration: 2030-04-01

Abstract

The utility model relates to an experiment check out test set technical field specifically is an automatic continuous air sampler of constant temperature constant current, its simple structure, reasonable in design, practical meaning and spreading value have, expect to produce good economic benefits, including the air sampling machine body, still be equipped with gaseous adjusting module in proper order in the intake pipe of air sampling machine body, heating module, cooling module, temperature sensor and gas flow sensor, cooling module includes the heat conduction base, radiator fan and heat-conducting layer, the heat conduction pedestal mounting is in the intake pipe, radiator fan installs on the heat conduction base, the heat-conducting layer is located between heat conduction base and the heat-conducting layer, temperature sensor and gas flow sensor locate in the intake pipe, temperature sensor and gas flow sensor all connect and are controlled by the air sampling machine body.

Description

Automatic constant-temperature constant-current continuous air sampler

Technical Field

The utility model relates to an experiment check out test set technical field specifically is an automatic constant temperature constant current continuous air sampler.

Background

The air sampler is an experimental auxiliary instrument, the content of a measured substance in ambient air to be detected is sucked for collection, the polluted environment of the environment to be detected can be evaluated by being used together with other equipment, the air sampler for detecting the air quality has wide application market along with the improvement of the living standard of people and the frequent occurrence of various environmental problems caused by the air quality, the attention degree of people to the air quality is higher and higher, the air sampler for detecting the air quality has wide application market, the use limitation of the existing air sampler is large, the air inflow of the equipment and the temperature of air flow can not be kept constant, the experimental detection result can be influenced by the change of the factors, and if the air sampler is improved, the research and development of the air sampler capable of automatically keeping constant temperature and constant flow has positive significance.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an automatic constant temperature constant current continuous air sampler to solve the problem that mentions in the background art.

In order to achieve the purpose, the utility model provides the following technical scheme that the air sampling machine comprises an air sampling machine body, a gas adjusting module, a heating module, a cooling module, a temperature sensor and a gas flow sensor are sequentially arranged on an air inlet pipe of the air sampling machine body, the gas adjusting module comprises a shell, 2 motors and 2 clamping blocks, the shell is connected with the air inlet pipe of the air sampling machine body, 2 clamping blocks and the air inlet pipe form a moving pair, the motors are fixed in the shell, a rotating shaft of the motors is connected with a screw rod, the screw rod penetrates through the clamping blocks and the clamping blocks form the moving pair, the cooling module comprises a heat conduction base, a heat dissipation fan and a heat conduction layer, the heat conduction base is arranged on the air inlet pipe, the heat dissipation fan is arranged on the heat conduction base, the heat conduction layer is arranged between the heat conduction base and, the temperature sensor and the gas flow sensor are arranged on the gas inlet pipe, and both the temperature sensor and the gas flow sensor are connected and controlled by the air sampling machine body.

Preferably, the heating module is a ceramic electric heating ring.

Preferably, the heat conducting layer is a graphene layer.

Preferably, the heat conduction base is a copper heat conduction base.

Preferably, the temperature sensor and the gas flow sensor are embedded in the gas inlet pipe.

Preferably, the heat conducting base is embedded on the air inlet pipe.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

the utility model provides an automatic constant temperature constant current continuous air sampler, temperature sensor and gas flow sensor send the temperature in the inlet tube, gas velocity of flow data to the controller of air sampler body, and when temperature data exceeded the default, the controller closed the heating module and started radiator fan and dispel the heat, and the heat conduction base can transmit the heat of gas, then dispel the heat through radiator fan; when the temperature data is lower than a preset value, the controller closes the cooling fan to start the heating module to heat so as to improve the temperature of the gas; the motor shaft is rotated and is driven the screw rod, the screw rod is rotated forward and backward and can be realized that the fixture block moves up and down on the vertical direction, when the gas flow is too big, the controller controls the motor to operate, the screw rod drives the fixture block to move towards the center of the gas inlet pipe, so that the gas flow is reduced, when the gas flow is too small, the controller controls the motor to rotate backward, the screw rod drives the fixture block to keep away from the center of the gas inlet pipe, and therefore the gas flow is improved.

The utility model discloses simple structure, reasonable in design has practical meaning and spreading value, expects to produce good economic benefits.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a schematic (partial) cross-sectional configuration of an air inlet tube;

in the figure: the air sampling machine comprises an air sampling machine body 1, an air conditioning module 2, a shell 21, a motor 22, a fixture block 23, a screw 24, a heating module 3, a cooling module 4, a heat conduction base 41, a heat radiation fan 42, a heat conduction layer 43, a temperature sensor 5 and an air flow sensor 6.

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. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

With reference to fig. 1-2, an automatic constant temperature and constant current continuous air sampler comprises an air sampler body 1, wherein an air inlet pipe of the air sampler body 1 is further sequentially provided with an air regulating module 2, a heating module 3, a cooling module 4, a temperature sensor 5 and an air flow sensor 6, the air regulating module 2 comprises a shell 21, 2 motors 22 and 2 fixture blocks 23, the shell 21 is connected with the air inlet pipe of the air sampler body 1, 2 fixture blocks 23 and the air inlet pipe form a moving pair, the motor 22 is fixed in the shell 21, a rotating shaft of the motor 22 is connected with a screw 24, the screw 24 penetrates through the fixture block 23 and forms a moving pair with the fixture block 23, the cooling module 4 comprises a heat conducting base 41, a heat radiating fan 42 and a heat conducting layer 43, the heat conducting base 41 is embedded in the air inlet pipe, the heat radiation fan 42 is installed on the heat conduction base 41, the heat conduction layer 43 is arranged between the heat conduction base 41 and the heat conduction layer 43, the temperature sensor 5 and the gas flow sensor 6 are embedded in the air inlet pipe, and the temperature sensor 5 and the gas flow sensor 6 are connected and controlled by the air sampling machine body 1.

The air sampler body 1 refers to a device for detecting inhaled gas in the prior art, namely a common air sampler; the motor 22 is a miniature 130 motor; the fixture block 23 refers to a block-shaped component for changing the air inlet quantity of the air inlet pipe, and the air inlet quantity of the air inlet pipe is 0 when 2 fixture blocks 23 are contacted; the heating module 3 is a ceramic electric heating ring; the heat conducting layer 43 is a graphene layer, so that the heat transfer efficiency of the heat conducting base 41 and the heat radiating fan 42 can be improved; the heat conducting base 41 is a copper heat conducting base and has excellent heat conducting performance; the temperature sensor 5 is specifically a temperature sensor of a model LM35 TO-92; the gas flow sensor 6 is a gas flow sensor of model AWM3300V, and has high measurement accuracy and high durability.

The utility model discloses the theory of operation: the temperature sensor 5 and the gas flow sensor 6 transmit the temperature and gas flow speed data in the air inlet pipe to the controller of the air sampling machine body 1, when the temperature data exceeds a preset value, the controller closes the heating module 3 to start the heat radiation fan 42 for heat radiation, the heat conduction base 41 can transfer the heat of the gas, and then the heat radiation is performed through the heat radiation fan 42; when the temperature data is lower than the preset value, the controller turns off the cooling fan 42 to start the heating module 3 to heat so as to increase the temperature of the gas; the rotating shaft of the motor 22 rotates to drive the screw rod 24, the fixture block 23 can move up and down in the vertical direction through forward and reverse rotation of the screw rod 24, when the gas flow is too large, the controller controls the motor 22 to operate, the screw rod 24 drives the fixture block 23 to move towards the center of the gas inlet pipe, so that the gas flow is reduced, when the gas flow is too small, the controller controls the motor 22 to rotate reversely, and the screw rod 24 drives the fixture block 23 to be far away from the center of the gas inlet pipe, so that the gas flow is improved.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides an automatic continuous air sampler of constant temperature constant current, its includes air sampler body (1), still be equipped with gas conditioning module (2), heating module (3), cooling module (4), temperature sensor (5) and gas flow sensor (6) in proper order on the intake pipe of air sampler body (1), its characterized in that:

the gas adjusting module (2) comprises a shell (21), 2 motors (22) and 2 clamping blocks (23), the shell (21) is connected with an air inlet pipe of the air sampling machine body (1), the 2 clamping blocks (23) and the air inlet pipe form a moving pair, the motors (22) are fixed in the shell (21), a rotating shaft of each motor (22) is connected with a screw rod (24), and the screw rods (24) penetrate through the clamping blocks (23) to form the moving pair with the clamping blocks (23);

the cooling module (4) comprises a heat conduction base (41), a heat dissipation fan (42) and a heat conduction layer (43), wherein the heat conduction base (41) is installed on the air inlet pipe, the heat dissipation fan (42) is installed on the heat conduction base (41), and the heat conduction layer (43) is arranged between the heat conduction base (41) and the heat conduction layer (43);

the temperature sensor (5) and the gas flow sensor (6) are arranged on the gas inlet pipe, and the temperature sensor (5) and the gas flow sensor (6) are connected and controlled by the air sampling machine body (1).

2. The automatic constant-temperature constant-current continuous air sampler according to claim 1, characterized in that: the heating module (3) is a ceramic electric heating ring.

3. The automatic constant-temperature constant-current continuous air sampler according to claim 1, characterized in that: the heat conduction layer (43) is a graphene layer.

4. The automatic constant-temperature constant-current continuous air sampler according to claim 1, characterized in that: the heat conduction base (41) is made of copper.

5. The automatic constant-temperature constant-current continuous air sampler according to claim 1, characterized in that: the temperature sensor (5) and the gas flow sensor (6) are embedded on the gas inlet pipe.

6. The automatic constant-temperature constant-current continuous air sampler according to claim 1, characterized in that: the heat conduction base (41) is installed on the air inlet pipe in an embedded mode.