Cyclone cutter with adjustable temperature and humidity

Abstract

The utility model discloses a cyclone cutter with adjustable temperature and humidity. The cyclone cutter comprises a temperature and humidity adjusting device and a cyclone cutter body. The temperature and humidity adjusting device is located below the particulate matter sampling head and composed of a dryer and a condenser, and the condenser is located on the lower side of the dryer. The dryer is filled with substances adsorbing water vapor and used for regulating and controlling the humidity of aerosol, and the condenser is composed of a snake-shaped heat exchange pipe and used for regulating and controlling the temperature of aerosol flow. The cyclone cutter body is located on the lower side of the temperature and humidity adjusting device. The cyclone cutter is novel in structure, the problems that the particle size is increased due to the fact that particles absorb water vapor under the high-humidity condition and the particle size is reduced due to the fact that volatile matter evaporates under the high-temperature condition are effectively solved by additionally arranging the temperature and humidity adjusting device, and therefore the accuracy of the cyclone cutter body serving as an atmospheric particulate sampling device is improved.

Description

Technical Field

[0001] The utility model belongs to the field of atmospheric particulate sampling devices, and particularly relates to a cyclone cutter with adjustable temperature and humidity. Background Art

[0002] Polluted air contains a mixture of various gases. In order to remove pollutants, various air pollution prevention and control devices have emerged accordingly. However, to understand the pollution treatment efficiency and emission standards, it is necessary to first measure the concentration of pollutants. However, under high humidity conditions, particulate matter will absorb water vapor, resulting in an increase in particle size, and under high temperature conditions, the evaporation of volatile substances will cause a decrease in particle size. Therefore, accurate sampling equipment is required. Therefore, a cyclone cutter with adjustable temperature and humidity that can improve sampling accuracy is proposed. Summary of the Invention

[0003] The purpose of the utility model is to provide a cyclone cutter with adjustable temperature and humidity. By using a temperature and humidity adjustment device composed of a dryer and a condenser to regulate the temperature and humidity of the sampled aerosol flow, problems such as the increase in particle size caused by particulate matter absorbing water vapor under high humidity conditions and the decrease in particle size caused by the evaporation of volatile substances under high temperature conditions are effectively reduced, thereby improving the accuracy of the cyclone cutter as a sampling device.

[0004] The utility model provides a cyclone cutter with adjustable temperature and humidity, adopting the following technical solutions:

[0005] A cyclone cutter with adjustable temperature and humidity includes a particulate sampling head, a temperature and humidity adjustment device, and a cyclone cutter body.

[0006] The particulate sampling head is located at the top of the device and is used to collect particulate matter in the air aerosol flow. A filter protection net is installed on the mushroom head at the front end of the particulate sampling head, which can effectively prevent foreign objects such as flying insects and catkins from entering the sampling head, and at the same time will not affect the composition of the sampling medium. The trachea inside the structure is made of a material that does not adsorb particulate matter (such as polytetrafluoroethylene, perfluoroethylenepropylene, polyetheretherketone, etc.) to avoid affecting the measurement.

[0007] The temperature and humidity adjustment device includes a dryer and a condenser. The dryer is used to adjust the humidity of the aerosol flow. The radius of the dryer is 9.5 - 22.2 mm to fill more desiccant to achieve a better drying effect. The desiccant filled therein includes drying particulate matter such as silica, activated carbon, aluminum chloride, molecular sieve, and alumina, which can effectively dry.

[0008] The condenser is located on the lower side of the dryer and is used to cool the temperature of the aerosol stream. In the condenser, a spiral condenser tube surrounds the intake pipe for heat exchange and cooling. The liquid in the condenser tube flows into the lower part of the condenser tube from the lower part by a water pump and flows out from the upper part, forming a countercurrent heat exchange with the intake pipe. To achieve a sufficient condensation effect on the air flow, the length of the condenser is set to 8 to 20 times the diameter of the spiral condenser tube.

[0009] The particulate sampling head, dryer, condenser, cyclone cutter body, and exhaust pipe are arranged in sequence.

[0010] The intake pipe includes a first part intake pipe, a second part intake pipe, and a third part intake pipe; one end of the first part intake pipe is connected to the particulate sampling head, and the other end is connected to the dryer; one end of the second part intake pipe is connected to the dryer, and the other end passes through the condenser and is connected to one end of the third part intake pipe; the other end of the third part intake pipe extends into and is connected to the cyclone cutter body and the exhaust pipe.

[0011] Preferably, the diameters of the first part intake pipe, the second part intake pipe, and the third part intake pipe are the same.

[0012] Preferably, the radius of the dryer is 9.5 to 22.2 mm.

[0013] The beneficial effects of the present utility model are as follows:

[0014] By adjusting the temperature and humidity of the aerosol stream through the temperature and humidity adjustment device, it is possible to reduce the increase in the particle size caused by the absorption of water vapor by the particles and the decrease in the particle size caused by the volatilization loss of semi-volatile substances, thereby improving the accuracy of sampling, and thus enhancing the accuracy of the cyclone cutter as a sampling device. Description of the Drawings

[0015] Figure 1 is a two-dimensional schematic diagram of the cyclone cutter body of the present utility model;

[0016] Figure 2 is a three-dimensional schematic diagram of the cyclone cutter body of the present utility model;

[0017] Figure 3 is Figure 1 the structural schematic diagram of the dryer in

[0018] Figure 4 is Figure 1 the structural schematic diagram of the condenser in

[0019] In the figure, 1 - particulate sampling head, 2 - intake pipe, 21 - first part intake pipe, 22 - second part intake pipe, 23 - third part intake pipe, 3 - temperature and humidity adjustment device, 31 - dryer, 32 - condenser, 4 - cyclone cutter body, 5 - exhaust pipe. Detailed implementation manners

[0020] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0021] Please refer to Figures 1 - 4 , which is a specific embodiment of the present utility model. A cyclone cutter with adjustable temperature and humidity includes a particulate sampling head 1, an air inlet pipe 2, a temperature and humidity adjustment device 3, a cyclone cutter body 4 and an exhaust pipe 5.

[0022] The temperature and humidity adjustment device 3 includes a dryer 31 and a condenser 32. The condenser 32 is located below the dryer 31. The dryer 31 is used to adjust the humidity of the aerosol flow, and the condenser 32 is used to adjust the temperature of the aerosol flow. In this patent, the dryer is set in front and the condenser is set behind, which can avoid the conversion of gaseous pollutants into aerosol particles caused by condensation. If the condenser is in front and the dryer is behind, it will cause some volatile substances in the air flow to condense into particles, affecting the final measurement results.

[0023] The particulate sampling head 1, the dryer 31, the condenser 32, the cyclone cutter body 4 and the exhaust pipe 5 are arranged in sequence.

[0024] The air inlet pipe 2 includes a first part air inlet pipe 21, a second part air inlet pipe 22 and a third part air inlet pipe 23. One end of the first part air inlet pipe 21 is connected to the particulate sampling head 1, and the other end is connected to the dryer 31. One end of the second part air inlet pipe 22 is connected to the dryer 31, and the other end passes through the condenser 32 and is connected to the third part air inlet pipe 23. The third part air inlet pipe 23 is tangentially connected to the cyclone cutter body 4.

[0025] The diameters of the first part air inlet pipe 21, the second part air inlet pipe 22 and the third part air inlet pipe 23 are the same.

[0026] The condenser 32 adopts a spiral condensing pipe, and the spiral condensing pipe exchanges heat and cools around the second part air inlet pipe 22. The length of the condenser 32 is 8 - 20 times the diameter of the spiral condensing pipe.

[0027] The radius of the dryer is 9.5 - 22.2 mm.

[0028] In this embodiment, the cyclone cutter body 4 is located below the temperature and humidity adjustment device 3 and is connected to the exhaust pipe 5.

[0029] The working process and principle of the present utility model:

[0030] As Figures 1 - 4As shown, a part of the fine particles in the aerosol flow can be collected by the particle sampling head 1. The aerosol flow enters the dryer 31 through the first part of the intake pipe 21. After being dried by the dryer 31, the aerosol flow enters the condenser 32 through the second part of the intake pipe 22. After being condensed by the condenser 32, the aerosol flow enters the cyclone cutter body 4 through the third part of the intake pipe 23 and is then discharged through the exhaust pipe 5.

[0031] Since the temperature and humidity of the aerosol flow are adjusted by the temperature and humidity adjustment device in this new embodiment, it is possible to reduce the increase in particle size caused by the absorption of water vapor by the particles and the decrease in particle size caused by the volatilization loss of semi-volatile substances, thereby improving the accuracy of sampling.

Claims

1. A cyclone cutter with adjustable temperature and humidity, characterized in that: Including particle sampling head and temperature and humidity adjustment equipment; The temperature and humidity regulating device comprises a dryer and a condenser; the particle sampling head, the dryer, the condenser, the cyclone cutter body and the exhaust pipe are arranged in sequence; The air inlet pipe includes a first part of the air inlet pipe, a second part of the air inlet pipe and a third part of the air inlet pipe; one end of the first part of the air inlet pipe is connected to the particle sampling head, and the other end is connected to the dryer; one end of the second part of the air inlet pipe is connected to the dryer, and the other end passes through the condenser and is connected to one end of the third part of the air inlet pipe; the other end of the third part of the air inlet pipe extends into and is connected to the cyclone cutter body and the exhaust pipe.

2. The temperature and humidity controllable cyclone cutter according to claim 1, characterized in that: The diameters of the first air intake pipe, the second air intake pipe and the third air intake pipe are consistent.

3. The temperature and humidity controllable cyclone cutter according to claim 2, characterized in that: The condenser adopts a spiral condenser tube to surround the second part of the air inlet pipe for heat exchange cooling, and the length of the condenser is 8 to 20 times the diameter of the spiral condenser tube.

4. The temperature and humidity controllable cyclone cutter according to claim 2, characterized in that: The dryer radius is 9.5-22.2 mm.

Images