CN109342489B - A local temperature control structure for detecting building materials volatility - Google Patents
A local temperature control structure for detecting building materials volatility Download PDFInfo
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- CN109342489B CN109342489B CN201811501984.6A CN201811501984A CN109342489B CN 109342489 B CN109342489 B CN 109342489B CN 201811501984 A CN201811501984 A CN 201811501984A CN 109342489 B CN109342489 B CN 109342489B
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Abstract
The invention belongs to the technical field of volatility detection, and particularly relates to a local temperature control structure for detecting the volatility of a building material, which is characterized in that a high-temperature tail end and a low-temperature tail end are respectively generated through a high-temperature water bath and a low-temperature water bath, the high-temperature tail end and the low-temperature tail end are respectively mixed through connection of a first mixed water bath and a delivery pipe of the high-temperature water bath and the low-temperature water bath, a second mixed water bath and a third mixed water bath are respectively arranged in three delivery pipes to generate a middle-temperature Wen Moduan and a middle-temperature tail end, a plurality of tail ends with the temperatures ranging from the high-temperature tail end to the low-temperature tail end in an equi-differential array are generated by analogy, the tail ends with the corresponding temperatures are connected with a layer unit according to the temperature requirement of the surface of the building material, so that the temperatures of the high-temperature water bath and the low-temperature water bath respectively correspond to the highest temperature and the lowest temperature of the surface of a building material plate in a hot environment, the temperature of the high-temperature water bath and the low-temperature water bath is kept unchanged, and the temperature difference of the surface of the small-size building material is kept.
Description
Technical Field
The invention belongs to the technical field of volatility detection, and particularly relates to a local temperature control structure for detecting building material volatility.
Background
Indoor Air Quality (IAQ) refers to the suitability of certain elements in air for life and work of people in a specific environment, the traditional air quality mainly takes temperature and humidity as main factors, and along with the improvement of the tightness of modern buildings, indoor harmful gases cannot be discharged, and the harmful gases volatilized from decorative building materials become a new concern;
the method is characterized in that a closed experiment bin is generally adopted for detecting the volatility of indoor building materials, the laboratory bin is internally provided with small-size building materials, the volatility of the building materials is detected by controlling the factors such as ambient temperature, humidity, air change rate and load rate, the building materials can form different temperature areas indoors in different heat supply environments due to the fact that the indoor temperature is in different heat supply environments, different temperature areas can be generated in different areas of the building materials due to reaction on building material plates, the laboratory bin is used for detecting the temperature of the building materials in the experiment process, the indoor environments can be simulated in terms of humidity and air change rate through conversion according to a certain proportion, and the situation that the local temperatures of the building materials in the indoor environments are different can not be truly simulated in the same important temperature control, so that the experiment results deviate in the volatility of the panels of the real indoor environments is detected.
Disclosure of Invention
The invention overcomes the defects of the prior art, provides a local temperature control structure for detecting the volatility of building materials, and solves the technical problems that:
1. how to simulate building materials under geothermal conditions by adopting small-size building materials to carry out a volatility detection test;
2. how to control the temperature of the surface of the small-size building material and simulate the surface temperature of the geothermal indoor plate;
3. how to maintain the temperature difference of the surfaces of small-size building materials;
4. providing a temperature difference device for maintaining the temperature difference of the surface of a small-size building material;
5. how to generate a plurality of gradient temperature difference ends through two heat sources with different temperatures;
the technical scheme of the invention is as follows:
a building material volatility detection device simulating a geothermal environment comprises: the device comprises a box body, layer units, a temperature difference device, a separation door, a sampling tube and a building material plate, wherein a plurality of layer units are arranged in parallel in the box body, the interior of the box body is divided into a plurality of temperature difference volatilization layers by the plurality of layer units, the height of each temperature difference volatilization layer can be adjusted by changing the distance between the adjacent layer units, the building material plate vertically passes through the plurality of layer units, the temperature difference device comprises a plurality of temperature difference tail ends with different temperatures, each temperature difference Wen Moduan is correspondingly arranged on one layer unit, a plurality of temperature differences Wen Moduan are respectively arranged on one side of the building material plate, the separation door is arranged in the box body, one side of the separation door is connected with the plurality of temperature difference volatilization layers, a closed mixing cavity is formed between the other side of the separation door and the inner wall of the box body, and the sampling tube is arranged in the mixing cavity;
the layer unit includes: the device comprises a layer driving piece, a layer unit plate, a heating pipe and a convection fan, wherein a socket for plugging a building material plate is arranged on the layer unit plate, the heating pipe is arranged on the inner side of the socket and is connected with the tail end of the temperature difference device, the layer driving piece is arranged on the layer unit plate and is used for adjusting the height of the layer unit plate and the heating position of the heating pipe, and the convection fan is arranged on the layer unit plate;
the differential temperature end of the differential temperature device comprises: a high Wen Moduan, a low temperature end for creating a high temperature zone for heating tubes in a high temperature zone of a building material sheet, and a plurality of intermediate temperature ends for creating a low temperature zone for heating tubes in a low temperature zone of a building material sheet, and an intermediate temperature end for creating an intermediate temperature zone for heating tubes in an intermediate temperature zone of a building material sheet.
Further, the cross section of the mixing cavity is semicircular, the semicircular opening is connected with the isolation door, and the inner wall of the mixing cavity is provided with a convex strip for guiding air flow, and the convex strip is annular or spiral.
Further, the isolation door includes: the isolation door motor drives the isolation baffle to move so as to open and close the isolation door.
Further, the sampling tube is perpendicular to the layer units, and a plurality of through holes are formed in the surface of the sampling tube along the axial direction.
A building material volatility detection method for simulating a geothermal environment comprises the following steps:
step a: setting a temperature distance curve from the lowest end to the uppermost end of a vertically placed plate in a geothermal environment, and selecting a temperature a of the highest temperature point and a temperature b of the lowest temperature point in the temperature distance curve;
step b: obtaining an arithmetic series of temperature according to the temperature a and the temperature b: b. b+Deltat … b+nDeltat, a,
wherein: n is an odd number greater than 1,
step c: b, obtaining a distance value corresponding to each temperature value according to the temperature value obtained in the step b and the temperature distance curve in the step a, and obtaining the position of each temperature value on the building material plate according to the ratio of the length of the actual plate to the length of the building material plate for detection;
step d: c, adjusting the positions of a plurality of layer units through the layer driving piece, so that the heating pipes of the layer units correspond to the positions obtained in the step c;
step e: connecting the temperature difference tail end of the temperature difference device with the heating pipes of the layer unit, so that each heating pipe generates the temperature with the same temperature corresponding to the position of the heating pipe;
step f: the building material plate is perpendicular to the layer unit and is inserted from an inserting hole on the layer unit;
step g: sealing the box body, closing the isolation door, and preserving heat;
step h: and opening the isolation door, enabling the gas between the layer units to enter the mixing cavity, and carrying out sampling detection through sampling light after mixing in the mixing cavity.
Further, in the step c, when the number of positions corresponding to the temperature value is equal to the number of temperature values, the number of the layer units is determined by taking the number of positions or the number of the temperature values, and when the number of positions corresponding to the temperature value is greater than the number of the temperature values, the number of the layer units is determined by taking the number of positions.
Further, in the step g, the convection fan on the layer unit is rotated at a low speed to generate an air flow flowing along the surface of the building material plate, so as to simulate the convection of air.
Further, in the step h, the convection fan on the layer unit is rotated at a high speed while the gas is mixed.
Further, the building material volatility detection method simulating the geothermal environment is applied to a building material volatility detection device simulating the geothermal environment.
Further, the building material volatility detection device simulating the geothermal environment comprises: the device comprises a box body, a layer unit, a temperature difference device, an isolation door, a sampling tube and a building material plate.
A local temperature control structure for detecting building material volatility, comprising: the heating plate is arranged on the side surface of the building material plate, a plurality of heating pipes are arranged on one side, far away from the building material plate, of the heating plate, the temperature difference device comprises a plurality of temperature difference tail ends with different temperatures, and each temperature difference tail end is connected with one or a plurality of heating pipes;
the differential temperature device includes: the high-temperature water bath, the low-temperature water bath and the mixed water bath, the temperature of the high-temperature water bath and the temperature of the low-temperature water bath correspond to the highest temperature and the lowest temperature of the surface of the building material plate in the geothermal environment respectively, the high-temperature water bath and the low-temperature water bath are respectively provided with one eduction tube, the two eduction tubes respectively generate a high-temperature tail end and a low-temperature tail end, a first mixed water bath is arranged between the two eduction tubes and is respectively connected with the eduction tubes of the high-temperature water bath and the low-temperature water bath and generates a medium-temperature tail end through the one eduction tube, a second mixed water bath and a third mixed water bath are respectively arranged in two intervals formed by arranging the three eduction tubes according to the temperature, the second mixed water bath and the third mixed water bath are respectively connected with the eduction tubes on two sides and form a medium-high Wen Moduan and medium-low temperature tail end through the one eduction tube, a fourth mixed water bath, a fifth mixed water bath … …, a sixth mixed water bath and a seventh mixed water bath … … are sequentially arranged in four intervals formed by arranging the temperature high-temperature tail ends to the low-temperature tail ends, a plurality of the tail ends are arranged in an equal difference array from the high-temperature tail ends to the low temperature tail ends, a plurality of the tail ends are respectively connected with heating tubes in a plurality of heating units which are connected with a heating tube in a plurality of heating unit mode, and the heating unit can be fixed on a heating unit and can be changed along with a heating layer.
Further, the heating plate includes: fixed plate, heat preservation, radiating block and take-up pulley, one side of fixed plate is fixed with the building materials board, and the opposite side is provided with the heat preservation, the heat preservation at layer unit direction of movement's both ends with fixed plate fixed connection, and be provided with a plurality of radiating block between heat preservation and the fixed plate, the both sides of radiating block all are provided with a take-up pulley and are used for compressing tightly the heat preservation on the fixed plate, be provided with the through-hole along the axial on the radiating block, be provided with in the through-hole the heating pipe, radiating block and take-up pulley all fix on layer unit to remove along with layer unit.
Further, the system also comprises a temperature measuring device, wherein the temperature measuring device is used for detecting the surface temperature of the building material and the distance between the building material and the geothermal heat source in the geothermal environment, and drawing a temperature distance curve according to the obtained temperature and distance values.
Further, the device also comprises a patrol instrument which is respectively connected with the high-temperature water bath and the low-temperature water bath, and the temperature of the high-temperature water bath and the low-temperature water bath and the position of the layer unit are set according to the temperature distance curve.
Further, the high-temperature water bath and the low-temperature water bath are internally provided with a heater, a radiator and a temperature sensor, and the heater, the radiator and the temperature sensor are controlled by the inspection instrument.
Further, the temperature measuring device includes: the infrared temperature sensor is arranged on the moving assembly, the moving assembly is arranged along the direction of the geothermal end and the direction of the non-geothermal end of the building material, the infrared temperature sensor is connected with the temperature measuring controller, and the temperature measuring controller is connected with the inspection instrument.
Further, the local temperature control structure for detecting the volatility of the building material is applied to a building material volatility detection device simulating a geothermal environment.
Further, the building material volatility detection device simulating the geothermal environment comprises: the device comprises a box body, a layer unit, a temperature difference device, an isolation door, a sampling tube and a building material plate.
A temperature control method for detecting the volatility of building materials comprises the following steps:
step a: according to a temperature distance curve from the lowest end to the uppermost end of a plate vertically placed in a geothermal environment, selecting a temperature a of a temperature highest point and a temperature b of a temperature lowest point in the temperature distance curve;
step b: the inspection instrument respectively controls the heater and the radiator in the high-temperature water bath and the low-temperature water bath according to the temperature a and the temperature b, so that the temperature of the high-temperature water bath is kept at the temperature a, and the temperature in the low-temperature water bath is kept at the temperature b;
step c: the high-temperature water bath passes through the tail end of the temperature generating part a of one eduction tube, the low-temperature water bath passes through the tail end of the temperature generating part b of one eduction tube, and the two eduction tubes are mixed by the first mixed water bath and then pass through the eduction tube to generate the temperature
The second and the third mixed water baths are respectively arranged in two intervals formed by arranging three delivery pipes according to the temperature, and are respectively connected with the delivery pipes at the two sides and form a temperature +.>
End and temperature of->
Four intervals formed by arranging the five delivery pipes according to the temperature are respectively provided with a fourth, a fifth, a sixth and a seventh mixed water bath … …, and the like, so that a plurality of temperatures are generated: b.
a, wherein n is the number of mixed baths;
step d: according to the temperature value in step c: b.
a, obtaining a distance value corresponding to each temperature value according to a temperature distance curve, distributing a heating pipe for each distance value, and connecting the heating pipe with the tail end of the temperature value corresponding to the distance value;
step e: and d, adjusting the positions of the layer units through the layer driving piece, so that the heating pipes of the layer units are adjusted to the distance value obtained in the step d.
In step a, the temperature measuring device is used for controlling the moving assembly to drive the infrared temperature sensor to move to the upper end along the lower end of the building material in the geothermal environment, and the distance and the temperature value are recorded at the same time, so that a temperature distance curve of the surface of the building material is obtained, and the temperature distance curve is sent to the inspection instrument through the temperature measuring controller.
In step e, when the heating pipe is used for heating, the heat is dissipated through the heat dissipation block sleeved outside the heating pipe.
Further, the heat-insulating layer is covered on the outer side of the heating block to reduce temperature loss, and the heat-insulating layer covers one side of the building material plate, which is contacted with the heating block.
Further, the temperature control method for detecting the volatility of the building material is applied to a local temperature control structure for detecting the volatility of the building material.
Further, the local temperature control structure for detecting the volatility of the building material comprises: the heating plate is arranged on the side face of the building material plate, a plurality of heating pipes are arranged on one side, away from the building material plate, of the heating plate, the temperature difference device comprises a plurality of temperature difference tail ends, and each temperature difference tail end is connected with one or a plurality of heating pipes.
1. How to simulate building materials under geothermal conditions by adopting small-size building materials to carry out a volatility detection test;
2. how to control the temperature of the surface of the small-size building material and simulate the surface temperature of the geothermal indoor plate;
3. how to maintain the temperature difference of the surfaces of small-size building materials;
4. how to set the temperature difference of the surface of the small-size building material;
the beneficial effects of the invention are as follows:
1) The detection device of the present invention includes: the device comprises a box body, layer units, a differential temperature device, an isolation door, a sampling tube and a building material plate, wherein a plurality of layer units are arranged in parallel in the box body to form a plurality of differential temperature volatilization layers, the building material plate vertically penetrates through the plurality of layer units, the differential temperature device comprises a plurality of differential temperature tail ends with different temperatures, each differential Wen Moduan is correspondingly arranged on one layer unit, and therefore the device can be structurally realized.
2) The layer unit of the detection device of the present invention includes: the device comprises a layer driving piece, a layer unit plate, a heating pipe and a convection fan, wherein a socket for plugging a building material plate is formed in the layer unit plate, the heating pipe is arranged on the inner side of the socket and is connected with the tail end of the differential temperature device, the layer driving piece is arranged on the layer unit plate and used for adjusting the height of the layer unit plate and the heating position of the heating pipe, the convection fan is arranged on the layer unit plate, and therefore the structure can be realized, adjacent differential temperature volatilization layers are separated to volatilize independently through the layer unit plate, air flow between the adjacent differential temperature volatilization layers is blocked, so that the temperature difference between the layers is kept, meanwhile, the position of the layer unit is adjusted through the layer driving piece, the heating position of the heating pipe is changed, different temperature distance curves are formed on the surface of small-size building materials, the surface of the small-size building materials is controlled in temperature, and the indoor plate surface temperature conditions under different geothermal conditions are simulated.
3) The invention respectively generates a high-temperature tail end and a low-temperature tail end through a high-temperature water bath and a low-temperature water bath, respectively mixes the tail ends with the delivery pipes of the high-temperature water bath and the low-temperature water bath through a first mixed water bath, generates a medium-temperature tail end through a delivery pipe, respectively arranges a second mixed water bath and a third mixed water bath in two intervals formed by arranging the three delivery pipes according to the temperature, respectively mixes the adjacent water baths to form a medium-high Wen Moduan tail end and a medium-low temperature tail end, and sequentially analogizes, generates a plurality of tail ends with the temperature ranging from the high-temperature tail end to the low-temperature tail end in an equal-difference array, connects the tail ends with a layer unit according to the temperature requirement of the surface of a building material, ensures that the temperature of the high-temperature water bath and the low-temperature water bath respectively correspond to the highest temperature and the lowest temperature of the surface of a building material plate under the thermal environment, keeps the temperature of the high-temperature water bath and the low-temperature water bath unchanged, and keeps the temperature difference of the surface of a small-size building material.
4) According to the invention, a temperature distance curve of the building material surface in an actual geothermal environment is obtained by detecting the position corresponding to the temperature combination temperature value from the lowest end to the uppermost end of a vertically placed plate in the geothermal environment, a temperature distance curve of the small-size building material surface is obtained by scaling, the highest temperature and the lowest temperature are selected, a plurality of temperature values of an arithmetic series are obtained between the highest temperature and the lowest temperature, the position of a heating pipe is set according to the position corresponding to the temperature values, the terminal temperature value of a temperature difference device is set according to the temperature values, and the heating pipe is connected with the terminal of the corresponding temperature, so that the temperature setting of the small-size building material surface is realized.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a building material volatility detection device simulating a geothermal environment;
FIG. 2 is a schematic diagram of the layer unit of FIG. 1;
FIG. 3 is a schematic diagram illustrating the connection relationship of the differential temperature device in FIG. 1;
FIG. 4 is a schematic view of the isolation door of FIG. 1;
FIG. 5 is a schematic view of the isolation door of FIG. 4 in an open configuration;
FIG. 6 is a schematic view of the structure of the sampling tube of FIG. 1;
FIG. 7 is a schematic structural view of a local temperature control structure for detecting the volatility of a building material;
FIG. 8 is a schematic diagram of the differential temperature device of FIG. 7;
FIG. 9 is a schematic view of the heating plate of FIG. 7;
FIG. 10 is a schematic diagram of the structural connection of a local temperature control structure for detecting building material volatility;
in the figure: 1, a box body; a 2-layer unit; 3 a temperature difference device; 4, an isolation door; 5, sampling tube; 6 building material plates; 7 a temperature measuring device; 8, a patrol instrument; 2-1 layer drive; 2-2 layers of cell plates; 2-3 heating pipes; 2-4 convection fans; 2-5 heating plates; 3-1, high-temperature water bath; 3-2, low-temperature water bath; 3-3 mixing water bath; 7-1 infrared temperature sensor; 7-2 moving the assembly; 7-3 temperature measurement controller; 2-5-1 fixing plates; 2-5-2 heat preservation layers; 2-5-3 heat dissipation blocks; 2-5-4 tensioning wheels;
Detailed Description
The invention will be described in detail below with reference to the attached drawings:
detailed description of the preferred embodiments
Referring to fig. 1, a building material volatility detection apparatus simulating a geothermal environment according to this embodiment includes: the device comprises a box body 1, layer units 2, a differential temperature device 3, isolation doors 4, sampling pipes 5 and building material plates 6, wherein a plurality of layer units 2 are arranged in the box body 1 in parallel, the box body 1 is divided into a plurality of temperature difference volatilization layers by the plurality of layer units 2, the heights of the temperature difference volatilization layers can be adjusted by changing the distances between the adjacent layer units 2, the building material plates 6 vertically penetrate through the plurality of layer units 2, the differential temperature device 3 comprises a plurality of differential temperature tail ends with different temperatures, each differential Wen Moduan is correspondingly arranged on one layer unit 2, a plurality of differential Wen Moduan are arranged on one side of the building material plates 6, the isolation doors 4 are arranged in the box body 1, one side of each isolation door 4 is connected with the plurality of temperature difference volatilization layers, the other side of each isolation door 4 and the inner wall of the box body 1 form a closed mixing cavity, and the sampling pipes 5 are arranged in the mixing cavity;
the layer units 2 are used for forming a plurality of different temperature volatilization layers, so that the surface of the building material plate 6 is divided into a plurality of layers, each layer is volatilized independently, each different temperature volatilization layer is provided with the tail ends of different temperatures of the different temperature devices 3 for temperature control, the size of each layer is controlled by the positions of the layer units 2, the control of the temperature and the area of the surface of the small-size building material can be realized, and the temperature distribution of the surface of the building material under the geothermal environment is simulated;
as shown in connection with fig. 2, the layer unit 2 comprises: the device comprises a layer driving piece 2-1, a layer unit plate 2-2, heating pipes 2-3 and convection fans 2-4, wherein a socket for plugging a building material plate 6 is arranged on the layer unit plate 2-2, the heating pipes 2-3 are arranged on the inner side of the socket, the heating pipes 2-3 are connected with the tail ends of the temperature difference devices 3, the layer driving piece 2-1 is arranged on the layer unit plate 2-2 and used for adjusting the height of the layer unit plate 2-2 and the heating position of the heating pipes 2-3, and the convection fans 2-4 are arranged on the layer unit plate 2-2;
the layer driving piece 2-1 drives the layer units to move up and down, adjusts the heating position and the size of the differential temperature volatilization layer, the layer unit plates 2-2 form a partition structure, reduces air flow between layers, is convenient for keeping the layer temperature, the heating pipes 2-3 are fixed on the layer unit plates 2-2, the heating pipes 2-3 move along with the layer unit plates 2-2, the heating position is adjusted, the convection fans 2-4 enable the inner layers to generate air flow, and simulate convection air on the surfaces of building materials in a geothermal environment;
as shown in fig. 3, the differential temperature end of the differential temperature device 3 includes: a high Wen Moduan, a low temperature end for generating a high temperature zone for the heating pipes 2-3 of the high temperature zone of the building material plate 6, and a plurality of intermediate temperature ends for generating a low temperature zone for the heating pipes 2-3 of the low temperature zone of the building material plate 6, and for generating an intermediate temperature zone for the heating pipes 2-3 of the intermediate temperature zone of the building material plate 6;
the lowest end of the small-size building material plate 6 corresponds to the lowest end of the building material plate in the actual geothermal environment, the heating pipe 2-3 at the lowest end of the building material plate 6 corresponds to the height Wen Moduan of the differential temperature device 3, the middle upper position of the small-size building material plate 6 corresponds to the lowest temperature point of the building material plate in the actual geothermal environment, the heating pipe 2-3 at the area on the building material plate 6 corresponds to the low temperature tail end of the differential temperature device 3, and the heating pipes 2-3 at other areas of the small-size building material plate 6 are correspondingly connected with the middle temperature tail end of the differential temperature device according to the temperature of the corresponding area of the building material plate in the actual geothermal environment, so that the surface of the small-size building material plate generates a temperature distance curve which is the same as the surface shape of the detection plate in the actual geothermal environment.
Detailed description of the preferred embodiments
The present embodiment is based on the first embodiment, specifically;
the cross section of the mixing cavity is semicircular, the semicircular opening is connected with the isolation door 4, and the inner wall of the mixing cavity is provided with a convex strip for guiding air flow, and the convex strip is annular or spiral.
Detailed description of the preferred embodiments
The present embodiment is specifically shown in fig. 4 and 5 based on the first or second embodiment;
the isolation door 4 includes: the isolation baffle and the isolation door motor drive the isolation baffle to move so as to open and close the isolation door 4;
the isolation door baffle includes: the device comprises main door plates 4-1, connecting door plates 4-2, auxiliary door plates 4-3 and driving shafts 4-4, wherein one ends of the two main door plates 4-1 are hinged, the other ends of the two main door plates 4-1 are respectively hinged with one end of one connecting door plate 4-2, the other ends of the two connecting door plates 4-2 are respectively hinged with the middle of one auxiliary door plate 4-3, the hinged shafts at the two ends of the connecting door plates 4-2 are all connected in a first slideway 4-5 in a sliding manner through sliding blocks, the first slideway 4-5 is arranged in parallel with the isolation door 4, one end of the auxiliary door plate 4-3 is connected in a second slideway 4-6 in a sliding manner through sliding blocks, the second slideway 4-6 is obliquely arranged with the isolation door 4, the two second slideways 4-6 are arranged in parallel, one end of the connecting door plate 4-2, which is hinged, the outer end of the pull rod is connected with one end of the rope, the other end of the rope is wound on the driving shaft 4-4, the driving shaft 4-4 is arranged on one side of the isolation door 4-3, which is far away from the auxiliary door plate 4-7, and one side of the isolation door 4-3 is arranged near the circulation cavity 4-7;
the driving shaft 4-4 is rotated by the isolating door motor, so that a rope is wound on the driving shaft 4-4, the rope pulls a pull rod, the pull rod drives the main door plates 4-1 to rotate and simultaneously move towards the middle, the hinged parts of the two main door plates 4-1 move towards the sampling pipe 5 to form a baffle structure positioned between the sampling pipe 5 and the isolating door 4, the baffle structure is positioned at the middle position and plays a role in guiding mixed air flow so that the air flow flows along the side wall, the two auxiliary door plates 4-3 slide along the inclined second slide way 4-6, and the second slide way 4-6 is obliquely arranged so that the auxiliary door plates 4-3 rotate, thereby driving the circulating fan 4-7 to rotate, and the circulating fan 4-7 is changed from being perpendicular to the side wall to being inclined to the side wall, so that annular air flow circulation along the side wall is formed;
elastic pieces are arranged at two ends of the isolation door 4, and an outward pulling force is applied to two ends of the isolation door 4.
Detailed description of the preferred embodiments
This embodiment is based on the first embodiment, and specifically, is shown in fig. 6;
the sampling tube 5 is arranged vertically to the layer units 2, and a plurality of through holes are formed in the surface of the sampling tube 5 along the axial direction;
the sampling tube 5 includes: the device comprises a flow limiting pipe 5-1, a circulating turbine 5-2, an outer sampling pipe 5-3 and an inner sampling pipe 5-4, wherein the outer sampling pipe 5-3 is coaxially arranged in the flow limiting pipe 5-1, a plurality of outer sampling openings are formed in the side wall of the outer sampling pipe 5-3, the inner sampling pipe 5-4 is coaxially arranged in the outer sampling pipe 5-3, a plurality of inner sampling openings are formed in the side wall of the inner sampling pipe 5-4 corresponding to the outer sampling pipe 5-3, a sampling pipe driving structure is arranged between the inner sampling pipe 5-4 and the outer sampling pipe 5-3, the inner sampling pipe 5-4 moves relative to the outer sampling pipe 5-3 through the sampling pipe driving structure, a switch structure which is opened when the inner sampling openings are coincident with the outer sampling openings and closed when the inner sampling openings are not coincident is formed in the outer sampling openings, and the circulating turbine 5-2 is arranged at the lower end of the outer sampling pipe 5-3;
the sampling tube driving structure drives the inner sampling tube 5-4 to move relative to the outer sampling tube 5-3, so that the inner sampling opening and the outer sampling opening are not overlapped, the circulating turbine 5-2 is started, gas in the mixing cavity flows into the flow limiting tube 5-1, flows out of the side surface of the upper end of the flow limiting tube 5-1, flushes the side wall of the mixing cavity, flows to the side surface of the lower end of the flow limiting tube 5-1, enters the flow limiting tube 5-1, forms mixing circulation in the mixing cavity, is matched with the temperature difference volatilizing layer and the large circulation of the mixing cavity, further improves the mixing effect, ensures uniform gas distribution, and the inner sampling tube 5-4 is driven by the sampling tube driving structure to move relative to the outer sampling tube 5-3 after mixing, so that the inner sampling opening and the outer sampling opening are overlapped, and the gas flows into the inner sampling tube 5-4;
the upper end of the flow limiting pipe 5-1 is provided with an upper flow limiting pipe seat, the lower end of the flow limiting pipe 5-1 is provided with a lower flow limiting pipe seat, the upper flow limiting pipe seat and the lower flow limiting pipe seat are both fixed on the inner wall of the mixing cavity, a gap is reserved between the flow limiting pipe 5-1 and the upper flow limiting pipe seat to form an airflow outlet, a gap is reserved between the flow limiting pipe 5-1 and the lower flow limiting pipe seat to form an airflow inlet, and the airflow inlet and the airflow outlet are both arranged on the side face of the sampling pipe 5.
Detailed description of the preferred embodiments
The embodiment provides a building material volatility detection method for simulating a geothermal environment, which is applied to the volatility detection device for simulating the geothermal environment in the first, second or fourth embodiments;
in particular, as shown in connection with fig. 1 to 3, the method comprises the following steps:
step a: setting a temperature distance curve from the lowest end to the uppermost end of a vertically placed plate in a geothermal environment, and selecting a temperature a of the highest temperature point and a temperature b of the lowest temperature point in the temperature distance curve;
step b: obtaining an arithmetic series of temperature according to the temperature a and the temperature b: b. b+Deltat … b+nDeltat, a,
wherein: n is an odd number greater than 1,
step c: obtaining a distance value corresponding to each temperature value according to the temperature value obtained in the step b and the temperature distance curve in the step a, and obtaining the position of each temperature value on the building material plate 6 according to the ratio of the actual plate length to the length of the building material plate 6 for detection;
step d: c, adjusting the positions of a plurality of layer units 2 through a layer driving piece 2-1 to enable heating pipes 2-3 of the layer units 2 to correspond to the positions obtained in the step c;
step e: connecting the differential temperature tail end of the differential temperature device 3 with the heating pipes 2-3 of the layer unit 2, so that each heating pipe 2-3 generates the same temperature corresponding to the position of the heating pipe 2-3;
step f: the building material plate 6 is perpendicular to the layer unit 2 and is inserted from an insertion hole on the layer unit 2;
step g: sealing the box body 1, closing the isolation door 4, and preserving heat;
step h: the isolation door 4 is opened, gas between the layer units 2 enters the mixing cavity, and sampling detection is carried out through the sampling tube 5 after mixing in the mixing cavity.
Detailed description of the preferred embodiments six
In the fifth embodiment, in the step c, when the number of positions corresponding to the temperature value is equal to the number of temperature values, the number of the layer units 2 is determined by taking the number of positions or the number of temperature values, and when the number of positions corresponding to the temperature value is greater than the number of temperature values, the number of the layer units 2 is determined by taking the number of positions.
Detailed description of the preferred embodiments
In the fifth embodiment, in the step g, the convection fan 2-4 on the layer unit 2 is rotated at a low speed to generate an air flow along the surface of the building material plate 6 to simulate the convection of air.
Detailed description of the preferred embodiments
In the fifth embodiment, in the step h, the convection fan 2-4 on the layer unit 2 is rotated at a high speed during the gas mixing.
Detailed description of the preferred embodiments nine
The embodiment is based on the fifth, sixth, seventh or eighth embodiment, specifically, the building material volatility detection method simulating the geothermal environment is applied to a building material volatility detection device simulating the geothermal environment.
Detailed description of the preferred embodiments
The embodiment is based on the ninth embodiment, specifically, the building material volatility detection device simulating a geothermal environment includes: the device comprises a box body 1, a layer unit 2, a temperature difference device 3, an isolation door 4, a sampling tube 5 and a building material plate 6.
Detailed description of the invention eleven
The embodiment discloses a local temperature control structure for detecting building material volatility, which is applied to a building material volatility detection device simulating a geothermal environment in the first, second or fourth embodiments;
as shown in connection with fig. 7, specifically, the method includes: the heating plate 2-5 and the temperature difference device 3, wherein the heating plate 2-5 is arranged on the side surface of the building material plate 6, a plurality of heating pipes 2-3 are arranged on the side, away from the building material plate 6, of the heating plate 2-5, the temperature difference device 3 comprises a plurality of temperature difference tail ends with different temperatures, and each temperature difference tail end is connected with one or a plurality of heating pipes 2-3;
as shown in fig. 8, the differential temperature device 3 includes: the high-temperature water bath 3-1, the low-temperature water bath 3-2 and the mixed water bath 3-3, wherein the temperatures of the high-temperature water bath 3-1 and the low-temperature water bath 3-2 respectively correspond to the highest temperature and the lowest temperature of the surface of a building material plate in a geothermal environment, the high-temperature water bath 3-1 and the low-temperature water bath 3-2 are respectively provided with a delivery pipe, the two delivery pipes respectively generate a high-temperature tail end and a low-temperature tail end, a first mixed water bath 3-3 is arranged between the two delivery pipes, the first mixed water bath 3-3 is respectively connected with the delivery pipes of the high-temperature water bath 3-1 and the low-temperature water bath 3-2 and generates a middle-temperature tail end through one delivery pipe, the two intervals formed by arranging the three delivery pipes according to the temperature height are respectively provided with a second mixed water bath 3-3, the second mixed water bath 3-3 and the third mixed water bath 3-3 are respectively connected with the delivery pipes at two sides and form middle-high Wen Moduan and middle-low temperature tail ends through one delivery pipe, the fourth, fifth, sixth and seventh mixed water baths 3-3 … … are respectively arranged in four intervals formed by arranging the five delivery pipes according to the temperature, a plurality of tail ends with the temperature ranging from the high temperature tail ends to the low temperature tail ends in an equi-differential sequence are generated, the plurality of tail ends are respectively connected with heating pipes 2-3 on heating plates 2-5, the heating pipes 2-3 are fixed on a layer unit 2, and the heating positions of the heating pipes 2-3 can be changed along with the movement of the layer unit 2;
in the process of transferring heat from the high-temperature water bath 3-1 to the low-temperature water bath 3-2, the temperature is continuously reduced, different temperature sections in the heat are intercepted by a plurality of mixed water baths 3-3, so that the tail ends with different temperatures are obtained, and the temperature of a plurality of tail ends can be ensured to be unchanged under the condition of ensuring the temperature of the high-temperature water bath 3-1 and the low-temperature water bath 3-2 to be unchanged.
Detailed description of the invention twelve
This example is based on the eleventh embodiment, specifically, with reference to fig. 9;
the heating plate 2-5 includes: the heat-insulating layer 2-5-2 is fixedly connected with the fixed plate 2-5-1 at two ends of the layer unit 2 in the moving direction, a plurality of heat-radiating blocks 2-5-3 are arranged between the heat-insulating layer 2-5-2 and the fixed plate 2-5-1, one tensioning wheel 2-5-4 is arranged at two sides of the heat-radiating blocks 2-5-3 and used for compressing the heat-insulating layer 2-5-2 on the fixed plate 2-5-1, a through hole is axially formed in the heat-radiating blocks 2-5-3, the heating pipe 2-3 is arranged in the through hole, and the heat-radiating blocks 2-5-3 and the tensioning wheel 2-5-4 are both fixed on the layer unit 2 and move along with the layer unit 2;
the heat-insulating layer 2-5-2 is covered on the outer side of the heat-radiating block 2-5-3 to prevent heat from diffusing, and meanwhile, the heat is uniformly diffused on the fixed plate 2-5-1.
Detailed description of the invention thirteen
The present embodiment is specifically shown in connection with fig. 10 on the basis of mode eleven or twelve in particular;
the device also comprises a temperature measuring device 7, wherein the temperature measuring device 7 is used for detecting the surface temperature of the building material and the distance between the building material and the geothermal heat source in the geothermal environment, and drawing a temperature distance curve according to the obtained temperature and distance values.
Detailed description of the invention fourteen
The present embodiment is specifically shown in connection with fig. 10 on the basis of the specific mode thirteen;
the temperature range curve is used for setting the temperature of the high-temperature water bath and the low-temperature water bath and the position of the layer unit 2 according to the temperature range curve.
Description of the preferred embodiments fifteen
The present embodiment is specifically shown in connection with fig. 10 on the basis of a specific mode fourteen;
the high-temperature water bath 3-1 and the low-temperature water bath 3-2 are respectively provided with a heater, a radiator and a temperature sensor, and the heaters, the radiator and the temperature sensors are controlled by the inspection instrument 8.
Description of the invention sixteen
The present embodiment is specifically shown in connection with fig. 10 on the basis of the specific mode thirteen;
the temperature measuring device 7 includes: the infrared temperature sensor 7-1, the moving assembly 7-2 and the temperature measurement controller 7-3, wherein the infrared temperature sensor 7-1 is arranged on the moving assembly 7-2, the moving assembly 7-2 is arranged along the geothermal end and the non-geothermal end directions of building materials, the infrared temperature sensor 7-1 is connected with the temperature measurement controller 7-3, and the temperature measurement controller 7-3 is connected with the inspection instrument 8.
Seventeenth embodiment of the invention
The embodiment is based on thirteen, fourteen, fifteen, sixteen or seventeen specific embodiments, and specifically, the control structure is applied to a building material volatility detection device simulating a geothermal environment.
Detailed description of the invention eighteen
The embodiment is based on seventeen specific embodiments, specifically, the building material volatility detection device simulating a geothermal environment includes: the device comprises a box body 1, a layer unit 2, a temperature difference device 3, an isolation door 4, a sampling tube 5 and a building material plate 6.
Detailed description of the invention nineteenth embodiment
The embodiment discloses a temperature control method for detecting the volatility of a building material, which is applied to a local temperature control structure for detecting the volatility of a building material in the eleventh embodiment, the twelfth embodiment, the fourteenth embodiment, the fifteenth embodiment or the sixteen embodiment, and specifically, the method comprises the following steps in combination with fig. 10:
step a: according to a temperature distance curve from the lowest end to the uppermost end of a plate vertically placed in a geothermal environment, selecting a temperature a of a temperature highest point and a temperature b of a temperature lowest point in the temperature distance curve;
step b: the inspection instrument 8 respectively controls the heater and the radiator in the high-temperature water bath 3-1 and the low-temperature water bath 3-2 according to the temperature a and the temperature b, so that the temperature of the high-temperature water bath 3-1 is kept at the temperature a and the temperature in the low-temperature water bath 3-2 is kept at the temperature b;
step c: the high temperature water bath 3-1 generates the end of the temperature a through one eduction tube, the low temperature water bath 3-2 generates the end of the temperature b through one eduction tube, and the two eduction tubes generate the temperature through one eduction tube after being mixed through the first mixed water bath 3-3
The second and the third mixed water baths 3-3 are respectively arranged in two intervals formed by arranging three delivery pipes according to the temperature, and the second and the third mixed water baths 3-3 are respectively connected with the delivery pipes at the two sides and form the temperature +.>
End and temperature of->
Four intervals formed by arranging five delivery pipes according to the temperature are respectively provided with a fourth mixed water bath 3-3 … …, a fifth mixed water bath, a sixth mixed water bath and a seventh mixed water bath, and the like, so that a plurality of temperatures are generated: b. and (2)>
a, wherein n is the number of mixed baths 3-3;
step d: according to the temperature value in step c: b.
a，obtaining a distance value corresponding to each temperature value according to the temperature distance curve, distributing a heating pipe 2-3 for each distance value, and connecting the heating pipe 2-3 with the tail end of the temperature value corresponding to the distance value;
step e: the positions of the layer units 2 are adjusted by the layer driving piece 2-1, so that the heating pipes 2-3 of the layer units 2 are adjusted to the distance value obtained in the step d.
Detailed description of the invention twenty
In step a, as shown in fig. 10, the moving assembly 2 is controlled by the temperature measuring device 7 to drive the infrared temperature sensor 7-1 to move to the upper end along the lower end of the building material in the geothermal environment, and the distance and the temperature value are recorded at the same time, so as to obtain a temperature distance curve of the surface of the building material, and the temperature distance curve is sent to the inspection device 8 through the temperature measuring controller 7-3.
Detailed description of the invention twenty-one
In the embodiment, as shown in fig. 9, in step e, heat is dissipated through the heat dissipating block 2-5-3 sleeved outside the heating pipe 2-3 when the heating pipe 2-3 is heated.
Detailed description of the invention twenty-two
In this example, according to twenty-one embodiment, as shown in fig. 9, the heat insulating layer 2-5-2 is covered on the outer side of the heating block 2-5-3 to reduce temperature loss, and the heat insulating layer 2-5-2 covers the side of the building material plate 6 contacting the heating block 2-5-3.
Detailed description of the invention twenty-three
The embodiment is based on nineteen, twenty-one or twenty-two specific embodiments, and specifically, the temperature control method for detecting the volatility of the building material is applied to a local temperature control structure for detecting the volatility of the building material.
Detailed description of the invention twenty-four
The embodiment is twenty-third based on the specific embodiment, specifically, the local temperature control structure for detecting volatility of building materials includes: the heating plate 2-5 and the differential temperature device 3, the heating plate 2-5 is arranged on the side face of the building material plate 6, a plurality of heating pipes 2-3 are arranged on the side, away from the building material plate 6, of the heating plate 2-5, the differential temperature device 3 comprises a plurality of differential temperature tail ends with different temperatures, and each differential temperature tail end is connected with one or a plurality of heating pipes 2-3.
The above embodiments are only illustrative of the present patent and do not limit the protection scope thereof, and those skilled in the art can also change the parts thereof, which are within the protection scope of the present patent without exceeding the spirit of the present patent.
Claims (8)
1. A local temperature control structure for detecting volatility of a building material, comprising: the heating plate (2-5) and the temperature difference device (3), wherein the heating plate (2-5) is arranged on the side face of the building material plate (6), a plurality of heating pipes (2-3) are arranged on the side, away from the building material plate (6), of the heating plate (2-5), the temperature difference device (3) comprises a plurality of temperature difference tail ends with different temperatures, and each temperature difference tail end is connected with one or a plurality of heating pipes (2-3);
the differential temperature device (3) comprises: the high-temperature water bath (3-1), the low-temperature water bath (3-2) and the mixed water bath (3-3), the temperatures of the high-temperature water bath (3-1) and the low-temperature water bath (3-2) respectively correspond to the highest temperature and the lowest temperature of the surface of a building material plate in a geothermal environment, the high-temperature water bath (3-1) and the low-temperature water bath (3-2) are respectively provided with a delivery pipe, the two delivery pipes respectively generate a high-temperature tail end and a low-temperature tail end, a first mixed water bath (3-3) is arranged between the two delivery pipes, the first mixed water bath (3-3) is respectively connected with the delivery pipes of the high-temperature water bath (3-1) and the low-temperature water bath (3-2) and generates a middle-temperature tail end through the delivery pipe, two intervals formed by arranging three delivery pipes according to the temperature height are respectively provided with a second mixed water bath (3-3) and a third mixed water bath (3-3), the second mixed water bath (3-3) and the third mixed water bath are respectively connected with the delivery pipes at two sides and form a middle-high Wen Moduan end and a middle-low temperature end through one delivery pipe, four intervals formed by arranging five delivery pipes according to the temperature height are respectively provided with a fourth mixed water bath (3-3) … …, a fifth mixed water bath, a sixth mixed water bath and a seventh mixed water bath … …, a plurality of ends which are arranged in an equi-differential array from the temperature at the high temperature end to the temperature at the low temperature end are generated, the plurality of ends are respectively connected with heating pipes (2-3) on the heating plates (2-5), the heating pipe (2-3) is fixed on the layer unit (2), and the heating position of the heating pipe (2-3) can be changed along with the movement of the layer unit (2).
2. A local temperature control structure for detecting volatility of building materials according to claim 1, characterized in that the heating plate (2-5) comprises: the heat-insulating unit comprises a fixing plate (2-5-1), a heat-insulating layer (2-5-2), heat-radiating blocks (2-5-3) and tensioning wheels (2-5-4), wherein a building material plate (6) is fixed on one side of the fixing plate (2-5-1), the heat-insulating layer (2-5-2) is arranged on the other side of the fixing plate, the heat-insulating layer (2-5-2) is fixedly connected with the fixing plate (2-5-1) at two ends of the moving direction of the layer unit (2), a plurality of heat-radiating blocks (2-5-3) are arranged between the heat-insulating layer (2-5-2) and the fixing plate (2-5-1), one tensioning wheel (2-5-4) is arranged on two sides of each heat-radiating block (2-5-3) and used for pressing the heat-insulating layer (2-5-2) on the fixing plate (2-5-1), through holes are axially formed in the heat-insulating blocks (2-5-3), and the heating pipes (2-3) are arranged in the through holes, and the heat-radiating blocks (2-5-3) and the tensioning wheels (2-5-4) are fixed on the layer unit (2).
3. The local temperature control structure for detecting building material volatility according to claim 1 or 2, further comprising a temperature measuring device (7), wherein the temperature measuring device (7) is used for detecting the building material surface temperature and the distance between the building material and the geothermal heat source in the geothermal environment, and drawing a temperature distance curve according to the obtained temperature and distance values.
4. A local temperature control structure for detecting volatility of building materials according to claim 3, further comprising a patrol instrument (8), wherein the patrol instrument (8) is connected with the high-temperature water bath (3-1) and the low-temperature water bath (3-2) respectively, and the temperatures of the high-temperature water bath and the low-temperature water bath and the positions of the layer units (2) are set according to the temperature distance curve.
5. The local temperature control structure for detecting building material volatility according to claim 4, wherein a heater, a radiator and a temperature sensor are arranged in the high-temperature water bath (3-1) and the low-temperature water bath (3-2), and the heater, the radiator and the temperature sensor are controlled by the inspection instrument (8).
6. A local temperature control structure for detecting building material volatility according to claim 4, wherein the temperature measuring device (7) comprises: the infrared temperature sensor (7-1), the mobile assembly (7-2) and the temperature measurement controller (7-3), wherein the infrared temperature sensor (7-1) is arranged on the mobile assembly (7-2), the mobile assembly (7-2) is arranged along the direction of the geothermal end and the direction of the non-geothermal end of the building material, the infrared temperature sensor (7-1) is connected with the temperature measurement controller (7-3), and the temperature measurement controller (7-3) is connected with the inspection instrument (8).
7. A local temperature control structure for detecting building material volatility as claimed in claim 1, 2, 4, 5 or 6 and wherein said control structure is applied to a building material volatility detection device simulating geothermal environment.
8. The local temperature control structure for detecting volatility of a building material of claim 7, wherein said building material volatility detection device simulating a geothermal environment comprises: the device comprises a box body (1), a layer unit (2), a differential temperature device (3), an isolation door (4), a sampling tube (5) and a building material plate (6).
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