CN216525340U

CN216525340U - System constant temperature structure for specific surface area and aperture analyzer

Info

Publication number: CN216525340U
Application number: CN202121870064.9U
Authority: CN
Inventors: 于海龙
Original assignee: Technical Institute of Physics and Chemistry of CAS
Current assignee: Technical Institute of Physics and Chemistry of CAS
Priority date: 2021-08-11
Filing date: 2021-08-11
Publication date: 2022-05-13
Anticipated expiration: 2031-08-11

Abstract

The utility model discloses a system constant temperature structure for a specific surface area and aperture analyzer, which comprises a constant temperature box, wherein an air guide pipe is arranged in the constant temperature box, two ends of the air guide pipe penetrate through the inner wall of the constant temperature box, a plurality of first fans and electric heaters are uniformly arranged in the constant temperature box, and a circuit board is arranged in the constant temperature box; when the air guide device is used, the plurality of electric heaters, the first fan and the second fan are started, the air in the incubator can be heated, the air in the incubator can flow circularly, the air guide pipe in the incubator can be heated, the temperature in the incubator and the temperature of the outer wall of the air guide pipe can be monitored through the arrangement of the first temperature sensor and the second temperature sensor, the output power of the electric heaters can be adjusted in real time, the temperature in the incubator and the temperature of the air guide pipe can be kept constant, external adsorption air with different temperatures can be kept constant after passing through the air guide pipe, and the accuracy of testing can be guaranteed.

Description

System constant temperature structure for specific surface area and aperture analyzer

Technical Field

The utility model relates to a specific surface area and aperture analyzer, in particular to a system constant temperature structure for the specific surface area and aperture analyzer.

Background

The specific surface area and aperture analyzer is a physical property tester used in the technical field of chemistry and mine engineeringWhen the analyzer is used for adsorption and desorption experiments, the temperature of the externally-connected adsorption gas is not constant before entering the system, for example, the indoor temperature difference in winter and summer, and the gas cylinder is placed in outdoor and indoor temperature differences and other external factors. Since the whole test is based on the ideal gas equation PV ═ nRT and Boma's law P₁V₁＝P₂V₂Therefore, the temperature of the adsorbed gas is of great importance, but most of the existing specific surface area pore size analyzers cannot control the stability of the temperature of the externally-connected adsorbed gas.

SUMMERY OF THE UTILITY MODEL

The present invention aims to provide a system constant temperature structure for a specific surface area and aperture analyzer, so as to solve the problems in the background technology.

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

specific surface area and system constant temperature structure for aperture analysis appearance, including the thermostated container, the inside of thermostated container is provided with the air duct, the inner wall of thermostated container is all run through at the both ends of air duct, the inside of thermostated container evenly is provided with the first fan of a plurality of and electric heater, the inside of thermostated container is provided with the circuit board, be provided with pressure sensor on the air duct, pressure sensor is located the thermostated container, the inside of thermostated container is provided with a plurality of first temperature sensor, the inside of thermostated container is provided with a plurality of second temperature sensor, the outer wall fixed connection of second temperature sensor and air duct.

As a further scheme of the utility model: and a heat insulation sleeve is arranged at the corresponding position of the outer wall of the air duct and the second temperature sensor, and the second temperature sensor is positioned in the heat insulation sleeve.

As a further scheme of the utility model: the opposite outer walls of the two sides of the constant temperature box are respectively provided with an air outlet and an air inlet in a penetrating way, and the air outlet and the air inlet are positioned on an air path of the electric heater.

As a further scheme of the utility model: first spout has been seted up to the inner wall of air outlet, the inner wall sliding connection of first spout has first baffle, the size of first baffle and the size looks adaptation of air outlet, the second spout has been seted up to the inner wall of air intake, the inner wall sliding connection of second spout has the second baffle, the size of second baffle and the size looks adaptation of air intake, be provided with two actuating mechanism on the thermostated container, first baffle, second baffle are connected with the actuating mechanism who corresponds respectively.

As a still further scheme of the utility model: the driving mechanism comprises a motor fixed on the outer wall of the constant temperature box, an output shaft of the motor penetrates through the outer wall of the constant temperature box and then is fixedly connected with a lead screw, the lead screw is rotatably connected with the inner wall of the constant temperature box through a bearing seat, and the outer wall of the lead screw is sleeved with a connecting block and two connecting blocks respectively fixedly connected with a first partition plate and a second partition plate.

As a still further scheme of the utility model: and filter screens are arranged at the openings of the air outlet and the air inlet.

As a still further scheme of the utility model: the middle part of thermostated container is provided with the second fan, the air duct distributes in the outside of second fan, the air duct is in the distribution of buckling in the thermostated container.

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

1. when the air guide device is used, the plurality of electric heaters, the first fan and the second fan are started, the air in the incubator can be heated, the air in the incubator can flow circularly, the air guide pipe in the incubator can be heated, the temperature in the incubator and the temperature of the outer wall of the air guide pipe can be monitored through the arrangement of the first temperature sensor and the second temperature sensor, the output power of the electric heaters can be adjusted in real time, the temperature in the incubator and the temperature of the air guide pipe can be kept constant, external adsorption air with different temperatures can be kept constant after passing through the air guide pipe, and the accuracy of testing can be guaranteed.

2. According to the utility model, the pressure sensor and the circuit board are placed in the thermostat, so that the temperature of the pressure sensor and the circuit board can be raised and is always in a certain temperature range, the influence of temperature drift on the pressure sensor and each shape sheet on the circuit board is reduced, and the accuracy of the test and the repeatability of the test result are improved.

3. When the temperature in the constant temperature box is too high in the using process, the electric heater can be turned off, the two motors are started, the first partition plate and the second partition plate are driven to move by utilizing the screw rod and the thread matching of the connecting block, so that the air outlet and the air inlet are opened, and meanwhile, only the first fan and the second fan which are positioned between the air inlet and the air outlet are turned on, so that hot air in the constant temperature box is discharged, and outside cold air is pumped into the constant temperature box, so that the constant temperature box is rapidly cooled.

Drawings

FIG. 1 is a schematic structural view of a system constant temperature structure for a specific surface area and pore size analyzer.

FIG. 2 is a partially enlarged view of a constant temperature structure of a system for a specific surface area and pore size analyzer.

The air conditioner comprises a thermostat 1, a first fan 2, an electric heater 3, an air guide pipe 4, a circuit board 5, a first temperature sensor 6, a second temperature sensor 7, a pressure sensor 8, a second fan 9, an air outlet 10, a first sliding groove 11, a first partition plate 12, an air inlet 13, a second sliding groove 14, a second partition plate 15, a filter screen 16, a motor 17, a screw rod 18 and a connecting block 19.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present invention more apparent, the present invention will be further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships that are based on the orientations or positional relationships shown in the drawings, are used merely to facilitate description of the present invention and to simplify description, and do not indicate or imply that the referenced devices or elements must have the particular orientations, configurations and operations described in the specification, and therefore are not to be considered limiting.

Furthermore, the terms "first", "second", "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1-2, in the embodiment of the present invention, the system constant temperature structure for a specific surface area and aperture analyzer includes an incubator 1 located in the analyzer, an air duct 4 is disposed inside the incubator 1, both ends of the air duct 4 penetrate through an inner wall of the incubator 1, a plurality of first fans 2 and electric heaters 3 are uniformly disposed inside the incubator 1, a circuit board 5 is disposed inside the incubator 1, the circuit board 5 is a main circuit board of the analyzer, a pressure sensor 8 is disposed on the air duct 4, the pressure sensor 8 is located in the incubator 1, a plurality of first temperature sensors 6 are disposed inside the incubator 1, a plurality of second temperature sensors 7 are disposed inside the incubator 1, and the second temperature sensors 7 are fixedly connected to an outer wall of the air duct 4.

The outer wall of the air duct 4 is provided with a heat preservation sleeve at the position corresponding to the second temperature sensor 7, and the second temperature sensor 7 is positioned in the heat preservation sleeve.

The opposite outer walls of two sides of the constant temperature box 1 are respectively provided with an air outlet 10 and an air inlet 13 in a penetrating way, and the air outlet 10 and the air inlet 13 are positioned on an air path of the electric heater 3.

First spout 11 has been seted up to the inner wall of air outlet 10, the inner wall sliding connection of first spout 11 has first baffle 12, the size of first baffle 12 and the size looks adaptation of air outlet 10, second spout 14 has been seted up to the inner wall of air intake 13, the inner wall sliding connection of second spout 14 has second baffle 15, the size of second baffle 15 and the size looks adaptation of air intake 13, be provided with two actuating mechanism on the thermostated container 1, first baffle 12, second baffle 15 are connected with corresponding actuating mechanism respectively.

Actuating mechanism is including fixing the motor 17 on the outer wall of thermostated container 1, fixedly connected with lead screw 18 behind the outer wall that the output shaft of motor 17 runs through thermostated container 1, lead screw 18 passes through the bearing frame and is connected with the inner wall rotation of thermostated container 1, connecting block 19, two have been cup jointed through screw-thread fit to the outer wall of lead screw 18 connecting block 19 respectively with

first baffle

12, 15 fixed connection of second baffle.

And filter screens 16 are arranged at the openings of the air outlet 10 and the air inlet 13.

The middle part of the incubator 1 is provided with a second fan 9, the air guide pipes 4 are distributed on the outer side of the second fan 9, and the air guide pipes 4 are distributed in the incubator 1 in a zigzag mode.

The first fan 2, the electric heater 3, the first temperature sensor 6, the second temperature sensor 7, the pressure sensor 8, the second fan 9 and the motor 17 are electrically connected with the circuit board 5, and the circuit board 5 is provided with a control chip.

The working principle of the utility model is as follows:

when the device is used, the plurality of electric heaters 3, the first fan 2 and the second fan 9 are started, so that the air in the incubator 1 can be heated, the air in the incubator 1 can flow circularly, the air guide pipe 4 in the incubator can be heated, the temperature in the incubator 1 and the temperature of the outer wall of the air guide pipe 4 can be monitored through the arrangement of the first temperature sensor 6 and the second temperature sensor 7, the output power of the electric heaters can be adjusted in real time, the temperature in the incubator 1 and the temperature of the air guide pipe 4 can be kept constant, external adsorption air with different temperatures can be kept constant after passing through the air guide pipe 4, and the accuracy of testing can be ensured.

Furthermore, in the utility model, the pressure sensor 8 and the circuit board 5 are placed in the thermostat 1, so that the temperature of the pressure sensor 8 and the circuit board 5 can be raised and always kept within a certain temperature range, the influence of temperature drift on various shaped sheets on the pressure sensor 8 and the circuit board 5 is reduced, and the accuracy of the test and the repeatability of the test result are improved.

Furthermore, in the using process of the present invention, when the temperature in the incubator 1 is too high, the electric heater 3 may be turned off, the two motors 17 are started to drive the first partition plate 12 and the second partition plate 15 to move by using the screw rod 18 and the screw of the connecting block 19, so as to open the air outlet 10 and the air inlet 13, and at the same time, only the first fan 2 and the second fan 9 located between the air inlet 13 and the air outlet 10 are turned on, so as to discharge the hot air in the incubator 1, and draw the external cold air into the incubator 1, so as to rapidly cool the incubator 1.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. Specific surface area and aperture analyzer are with system constant temperature structure, its characterized in that: including thermostated container (1), the inside of thermostated container (1) is provided with air duct (4), the inner wall of thermostated container (1) is all run through at the both ends of air duct (4), the inside of thermostated container (1) evenly is provided with first fan of a plurality of (2) and electric heater (3), the inside of thermostated container (1) is provided with circuit board (5), be provided with pressure sensor (8) on air duct (4), pressure sensor (8) are located thermostated container (1), the inside of thermostated container (1) is provided with a plurality of first temperature sensor (6), the inside of thermostated container (1) is provided with a plurality of second temperature sensor (7), the outer wall fixed connection of second temperature sensor (7) and air duct (4).

2. The system constant temperature structure for a specific surface area and pore size analyzer according to claim 1, wherein: the outer wall of the air duct (4) is provided with a heat preservation sleeve at the position corresponding to the second temperature sensor (7), and the second temperature sensor (7) is positioned in the heat preservation sleeve.

3. The system constant temperature structure for a specific surface area and pore size analyzer according to claim 1, wherein: the air conditioner is characterized in that an air outlet (10) and an air inlet (13) are respectively formed in the two opposite outer walls of the two sides of the constant temperature box (1) in a penetrating mode, and the air outlet (10) and the air inlet (13) are located on an air path of the electric heater (3).

4. The system constant temperature structure for a specific surface area and pore size analyzer according to claim 3, wherein: first spout (11) have been seted up to the inner wall of air outlet (10), the inner wall sliding connection of first spout (11) has first baffle (12), the size of first baffle (12) and the size looks adaptation of air outlet (10), second spout (14) have been seted up to the inner wall of air intake (13), the inner wall sliding connection of second spout (14) has second baffle (15), the size of second baffle (15) and the size looks adaptation of air intake (13), be provided with two actuating mechanism on thermostated container (1), first baffle (12), second baffle (15) are connected with the actuating mechanism that corresponds respectively.

5. The system thermostat structure for a specific surface area and pore size analyzer according to claim 4, wherein: actuating mechanism is including fixing motor (17) on thermostated container (1) outer wall, fixedly connected with lead screw (18) behind the outer wall that thermostated container (1) was run through to the output shaft of motor (17), lead screw (18) are connected through the inner wall rotation of bearing frame with thermostated container (1), connecting block (19), two have been cup jointed through screw-thread fit to the outer wall of lead screw (18) connecting block (19) respectively with first baffle (12), second baffle (15) fixed connection.

6. The system thermostat structure for a specific surface area and pore size analyzer according to claim 4, wherein: and filter screens (16) are arranged at the openings of the air outlet (10) and the air inlet (13).

7. The system constant temperature structure for a specific surface area and pore size analyzer according to claim 1, wherein: the middle part of thermostated container (1) is provided with second fan (9), air duct (4) distribute in the outside of second fan (9), air duct (4) the inflection distributes in thermostated container (1).