CN109324078B - Temperature control method for detecting volatility of building materials - Google Patents
Temperature control method for detecting volatility of building materials Download PDFInfo
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- CN109324078B CN109324078B CN201811501983.1A CN201811501983A CN109324078B CN 109324078 B CN109324078 B CN 109324078B CN 201811501983 A CN201811501983 A CN 201811501983A CN 109324078 B CN109324078 B CN 109324078B
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Abstract
The invention belongs to the technical field of volatility detection, and particularly relates to a temperature control method for building material volatility detection, which comprises the steps of respectively generating a high-temperature tail end and a low-temperature tail end through a high-temperature water bath and a low-temperature water bath, respectively connecting a first mixed water bath with outlet pipes of the high-temperature water bath and the low-temperature water bath for mixing, generating a medium-temperature tail end through one outlet pipe, respectively arranging a second mixed water bath and a third mixed water bath in three outlet pipes, generating a medium-temperature tail end and a medium-low tail end, repeating the steps in the same way, generating a plurality of tail ends with the temperature in an equal difference array from the high-temperature tail end to the low-temperature tail end, connecting the tail ends with corresponding temperatures with layer units according to the surface temperature of a building material, respectively corresponding to the highest temperature and the lowest temperature of the surface of the building material in a hot environment, and keeping, 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 temperature control method for detecting the volatility of building materials.
Background
Indoor Air Quality (IAQ) refers to the degree of suitability of certain elements in air for life and work of people in a specific environment, the former air quality mainly takes temperature and humidity as main factors, and indoor harmful gas cannot be discharged along with the improvement of the tightness of modern buildings, so that the volatile harmful gas of decoration building materials becomes a new concern;
the volatility of the building materials is detected by adopting a closed experimental bin, small-sized building materials are arranged in the experimental bin, the volatility of the building materials is detected by controlling factors such as environmental temperature, humidity, ventilation rate, load rate and the like, the building materials can form areas with different temperatures indoors in actual living environments due to the indoor temperature under different heat supply environments, different temperature areas can be generated in different areas of the building materials on a building material plate by reaction, the indoor environment can be simulated on the humidity and the ventilation rate due to the fact that the small-sized building materials are adopted in the detection experiment process and the experiment is carried out according to conversion of a certain proportion, the situation that the local temperatures of the building materials in the indoor environment are different cannot be simulated really on the same important temperature control, the experiment result has deviation on the volatility of the real indoor environment plate, and in the indoor environment adopting geothermal heat supply, the vertical panel of placing because the bottom is close with geothermal heat source, and the temperature is higher, and upward temperature reduces gradually, makes the certain back liter of building materials top temperature at the top because the backward flow of warm air, consequently in order to obtain more real experimental data, needs one kind can simulate geothermal heating environment, and the temperature on indoor building materials surface temperature's experimental storehouse how to control building materials surface has become the problem of treating urgently.
Disclosure of Invention
The invention overcomes the defects of the prior art, provides a temperature control method for detecting the volatility of building materials, and solves the technical problems that:
1. how to adopt the building materials with small size to simulate the building materials under the geothermal condition 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 panel in the geothermal room;
3. how to maintain the temperature difference on the surface of the small-size building material;
4. providing a differential temperature device for maintaining a temperature difference on the surface of a small-size building material;
5. how to generate a plurality of tail ends of gradient temperature difference by two heat sources with different temperatures;
the technical scheme of the invention is as follows:
a building material volatility detection apparatus that simulates a geothermal environment, comprising: the building material board vertically penetrates through the plurality of layer units, the differential temperature device comprises a plurality of differential temperature ends with different temperatures, each differential temperature end is correspondingly arranged on one layer unit, the plurality of differential temperature ends are arranged on one side of the building material board, the isolation door is arranged inside the box body, one side of the isolation door is connected with the plurality of differential temperature volatilization layers, the other side of the isolation door and the inner wall of the box body form a closed mixed cavity, and the sampling pipe is arranged inside the mixed cavity;
the layer unit includes: the heating device comprises a layer driving piece, a layer unit plate, a heating pipe and a convection fan, wherein a socket for inserting a building material plate is arranged on the layer unit plate, the heating pipe is arranged on the inner side of the socket, the heating pipe is connected with the tail end of the temperature difference 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, and the convection fan is arranged on the layer unit plate;
the differential temperature end of the differential temperature device comprises: the high-temperature end is used for enabling a heating pipe of a high-temperature area of the building material plate to generate a high-temperature area, the low-temperature end is used for enabling the heating pipe of the low-temperature area of the building material plate to generate a low-temperature area, and the middle-temperature end is used for enabling the heating pipe of the middle-temperature area of the building material plate to generate a middle-temperature area.
Furthermore, the cross section of the mixing cavity is semicircular, the semicircular opening is connected with the isolating door, and a protruding strip for guiding airflow is arranged on the inner wall of the mixing cavity and is annular or spiral.
Further, the isolation gate includes: the isolation door comprises an isolation baffle and an isolation door motor, wherein the isolation door motor drives the isolation baffle to move to realize the opening and closing of the isolation door.
Further, the sampling tube is with a plurality of layer unit sets up perpendicularly, just the surface of sampling tube is provided with a plurality of through-holes along the axial.
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 highest end of a vertically placed plate in a geothermal environment, and selecting the temperature a at the highest temperature point and the temperature b at the lowest temperature point in the temperature distance curve;
step b: and obtaining an arithmetic progression of the temperature according to the temperature a and the temperature b: b. b + Δ t … b + n Δ t, 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 corresponding to 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 actual plate length to the length of the building material plate for detection;
step d: c, adjusting the positions of the plurality of layer units through the layer driving piece to enable the heating pipes of the layer units to correspond to the positions obtained in the step c;
step e: connecting the differential temperature tail end of the differential temperature device with the heating pipes of the layer unit, so that each heating pipe generates the same temperature corresponding to the position of the heating pipe;
step f: the building material plate is vertical to the layer unit and is inserted from the jack on the layer unit;
step g: sealing the box body, closing the isolating door and preserving heat;
step h: and opening the isolation door, enabling the gas between the layer units to enter the mixing cavity, and performing 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 positions or the number of temperature values is taken to determine the number of layer units, and when the number of positions corresponding to the temperature value is greater than the number of temperature values, the number of positions is taken to determine the number of layer units.
In step g, the convection fan on the layer unit is rotated at a low speed to generate an airflow 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 mixing is performed.
Furthermore, 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 for simulating geothermal environment comprises: the device comprises a box body, a layer unit, a differential temperature device, an isolation door, a sampling tube and a building material plate.
A localized temperature control structure for detecting volatility of a building material, comprising: the heating plate is arranged on the side surface of the building material plate, one side of the heating plate, which is far away from the building material plate, is provided with a plurality of heating pipes, the differential temperature device comprises a plurality of differential temperature tail ends with different temperatures, and each differential temperature tail end is connected with one or more heating pipes;
the differential temperature device includes: the high-temperature water bath and the low-temperature water bath are respectively provided with a delivery pipe, the two delivery pipes respectively generate a high-temperature end and a low-temperature end, a first mixed water bath is arranged between the two delivery pipes, the first mixed water bath is respectively connected with the delivery pipes of the high-temperature water bath and the low-temperature water bath and generates a medium-temperature end through one delivery pipe, a second mixed water bath and a third mixed water bath are respectively arranged in two intervals formed by arranging the three delivery pipes according to the temperature, the second mixed water bath and the third mixed water bath are respectively connected with the delivery pipes on two sides and form a medium-temperature end and a medium-low-temperature end through one delivery pipe, and a fourth mixed water bath is respectively arranged in four intervals formed by arranging the five delivery pipes according to the temperature, And analogizing the fifth mixed water bath … …, the sixth mixed water bath … … and the seventh mixed water bath … … in sequence to generate a plurality of tail ends with the temperature in an arithmetic progression from the high-temperature tail end to the low-temperature tail end, wherein the plurality of tail ends are respectively connected with the heating pipes on the heating plate, the heating pipes are fixed on the layer unit, and the heating positions of the heating pipes can be changed along with the movement of the layer unit.
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 moving direction'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 along with layer unit removal.
And the temperature measuring device is used for detecting the surface temperature of the building material and the distance between the building material and a geothermal heat source in the geothermal environment, and drawing a temperature distance curve according to the obtained temperature and distance value.
And further, the system also comprises a patrol instrument, wherein the patrol instrument is respectively connected with the high-temperature water bath and the low-temperature water bath, and sets the temperature of the high-temperature water bath and the low-temperature water bath and the position of the layer unit according to the temperature distance curve.
Further, a heater, a radiator and a temperature sensor are arranged in the high-temperature water bath and the low-temperature water bath, and the heater, the radiator and the temperature sensor are controlled by the patrol instrument.
Further, the temperature measuring device includes: the infrared temperature sensor is arranged on the movable assembly, the movable 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 measurement controller, and the temperature measurement controller is connected with the patrol instrument.
Further, the local temperature control structure for detecting the volatility of the building materials is applied to a building material volatility detecting device simulating a geothermal environment.
Further, the building material volatility detection device of simulation geothermal environment includes: the device comprises a box body, a layer unit, a differential temperature device, an isolation door, a sampling tube and a building material plate.
A temperature control method for detecting the volatility of a building material comprises the following steps:
step a: according to a temperature distance curve from the lowest end to the highest end of a vertically placed plate in a geothermal environment, selecting the temperature a at the highest temperature point and the temperature b at the lowest temperature point in the temperature distance curve;
step b: the patrol instrument respectively controls the heaters and radiators 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 of the low-temperature water bath is kept at the temperature b;
step c: the high-temperature water bath generates the temperature a through the tail end of one eduction tube, the low-temperature water bath generates the temperature b through the tail end of one eduction tube, and the two eduction tubes generate the temperature through one eduction tube after being mixed through the first mixed water bath
The second and the third mixed water baths are respectively arranged in two intervals formed by arranging the three delivery pipes according to the temperature, are respectively connected with the delivery pipes at two sides and form the temperature by one delivery pipe
End and temperature of
The four intervals formed by arranging the five delivery pipes according to the temperature are respectively provided with a fourth mixed water bath … …, a fifth mixed water bath … …, a sixth mixed water bath … … and the like, and a plurality of temperatures are generated: b.
a, wherein n is the number of mixed water baths;
step d: according to the temperature value in the step c: b.
a, obtaining a distance value corresponding to each temperature value corresponding to the 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 plurality of 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.
Furthermore, in the step a, the temperature measuring device controls 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, the distance and the temperature value are recorded simultaneously, a temperature distance curve of the surface of the building material is obtained, and the temperature distance curve is sent to the patrol instrument through the temperature measuring controller.
Furthermore, in the step e, when the heating pipe is used for heating, the heat is radiated through the radiating block sleeved outside the heating pipe.
Further, the temperature loss is reduced by covering the outer side of the heating block with the heat insulation layer, and meanwhile, the heat insulation layer covers the side, in contact with the heating block, of the building material plate.
Further, the temperature control method for detecting the volatility of the building materials is applied to a local temperature control structure for detecting the volatility of the building materials.
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, one side, away from the building material plate, of the heating plate is provided with a plurality of heating pipes, the differential temperature device comprises a plurality of differential temperature terminals with different temperatures, and each differential temperature terminal is connected with one or more heating pipes.
1. How to adopt the building materials with small size to simulate the building materials under the geothermal condition 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 panel in the geothermal room;
3. how to maintain the temperature difference on the surface of the small-size building material;
4. how to set the surface temperature difference of the small-size building materials;
the invention has the beneficial effects that:
1) the detection device of the present invention includes: the box, the layer unit, the difference temperature device, the isolating gate, sampling tube and building materials board, the inside parallel arrangement of box has a plurality of layer unit, form a plurality of difference temperature layer of volatilizing, the building materials board passes a plurality of layer unit perpendicularly, the difference temperature device includes the difference temperature end of a plurality of temperature difference, every difference temperature end all corresponds the setting on a layer unit, the structure can realize from this, through setting up the pick-up plate in the difference temperature of difference that differs volatilizees along vertical direction, every difference temperature volatilizees the layer and passes through difference temperature device independent control temperature, make the building materials surface of small-size produce the difference in temperature of different gradients, the experiment of volatilizing under the condition that keeps the difference in temperature, realize the actual temperature gradient of building materials under the little size building materials simulation department geothermal condition, carry out volatility detection test.
2) The layer unit of the detection device of the present invention includes: 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, so that the structure can realize that the adjacent differential temperature volatilization layers are separated by the layer unit plate to volatilize independently, the air flow between the adjacent differential temperature volatilization layers is cut off, the temperature difference between layers is kept, meanwhile, the position of the layer unit is adjusted by the layer driving piece to change the heating position of the heating pipe, different temperature distance curves are formed on the surface of the small-size building material, so that the surface of the small-size building material is subjected to temperature control, and the surface temperature condition of the indoor plate under different heat conditions is simulated.
3) The invention respectively generates a high-temperature end and a low-temperature end through a high-temperature water bath and a low-temperature water bath, the first mixed water bath is respectively connected with the delivery pipes of the high-temperature water bath and the low-temperature water bath for mixing, the middle-temperature end and the low-temperature end are generated through one delivery pipe, the second mixed water bath and the third mixed water bath are respectively arranged in two intervals formed by arranging the three delivery pipes according to the temperature, the second mixed water bath and the third mixed water bath respectively mix the adjacent water baths to form the middle-high-temperature end and the middle-low-temperature end, the analogy is repeated, a plurality of ends with the temperature in an equal difference array from the high-temperature end to the low-temperature end are generated, the ends with the corresponding temperature are connected with the layer unit according to the surface temperature of the building materials, the temperatures of the high-temperature water bath and the low-temperature water bath respectively correspond to, the temperature difference of the surface of the small-size building material is kept.
4) The temperature distance curve of the surface of the building material in the actual geothermal environment is obtained by detecting the temperature of the vertically placed plate from the lowest end to the highest end in the geothermal environment and combining the positions corresponding to the temperature values, the temperature distance curve of the surface of the small-size building material is obtained by converting the temperature distance curve according to the proportion, the highest temperature and the lowest temperature are selected, a plurality of temperature values with the same difference 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 value, the tail end temperature value of a temperature difference device is set according to the temperature value, the heating pipe is connected with the tail end of the corresponding temperature, and the temperature setting.
Drawings
FIG. 1 is a schematic view of the overall structure of a building material volatility detection device for simulating a geothermal environment;
FIG. 2 is a schematic diagram of the structure of the layer unit in FIG. 1;
FIG. 3 is a schematic view of the connection of the differential temperature device of FIG. 1;
FIG. 4 is a schematic structural diagram of the isolation gate of FIG. 1;
FIG. 5 is a schematic structural view of the isolation door of FIG. 4 in an open state;
FIG. 6 is a schematic view of the sampling tube of FIG. 1;
FIG. 7 is a schematic diagram of a local temperature control structure for detecting volatility of a building material;
FIG. 8 is a schematic structural view 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 structural connection diagram of a local temperature control structure for detecting volatility of a building material;
in the figure: 1, a box body; a 2-layer unit; 3 a differential temperature device; 4, an isolation door; 5, sampling a tube; 6 building material plates; 7, a temperature measuring device; 8, inspecting the instrument; 2-1 layer of driving member; 2-2 layers of unit plates; 2-3 heating pipes; 2-4 convection fans; 2-5 heating plates; 3-1, carrying out high-temperature water bath; 3-2, performing low-temperature water bath; 3-3, mixing water bath; 7-1 infrared temperature sensor; 7-2 moving the assembly; 7-3 temperature measuring controller; 2-5-1 fixing plate; 2-5-2 insulating layers; 2-5-3 heat dissipation blocks; 2-5-4 of tension wheel;
Detailed Description
The invention will be described in detail below with reference to the following drawings:
detailed description of the invention
Referring to fig. 1, the building material volatility detecting apparatus for simulating geothermal environment disclosed in this embodiment includes: the temperature difference 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, wherein a plurality of layer units 2 are arranged in parallel in the box body 1, the inside of the box body 1 is divided into a plurality of temperature difference volatilization layers by the layer units 2, the height of each temperature difference volatilization layer can be adjusted by changing the distance of the adjacent layer unit 2, the building material plate 6 vertically penetrates through the layer units 2, the temperature difference device 3 comprises a plurality of temperature difference terminals with different temperatures, each temperature difference terminal is correspondingly arranged on one layer unit 2, the temperature difference terminals are arranged on one side of the building material plate 6, the isolation door 4 is arranged in the box body 1, one side of the isolation door 4 is connected with the temperature difference volatilization layers, the other side of the isolation door 4 and the inner wall of the box body 1 form a closed mixing cavity, and the sampling tube 5 is arranged in the mixing cavity;
the plurality of differential temperature volatilization layers are formed by the layer units 2, so that the surface of the building material plate 6 is divided into a plurality of layers, each layer volatilizes independently, the tail ends of the differential temperature devices 3 with different temperatures on each differential temperature volatilization layer are subjected to temperature control, the size of each layer is controlled by the positions of the layer units 2, the temperature size and the area control of the surface of the small-size building material can be realized, and the temperature distribution of the surface of the building material in a geothermal environment can be simulated;
as shown in connection with fig. 2, the layer unit 2 includes: the floor heating device comprises a floor driving piece 2-1, a floor unit plate 2-2, heating pipes 2-3 and convection fans 2-4, wherein a socket for inserting a building material plate 6 is arranged on the floor 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 end of the temperature difference device 3, the floor driving piece 2-1 is arranged on the floor unit plate 2-2 and used for adjusting the height of the floor unit plate 2-2 and the heating position of the heating pipes 2-3, and the convection fans 2-4 are arranged on the floor unit plate 2-2;
the layer driving piece 2-1 drives the layer unit to move up and down, the heating position and the size of the differential temperature volatilization layer are adjusted, the layer unit plate 2-2 forms a partition structure, air flow between layers is reduced, the layer temperature is convenient to maintain, the heating pipe 2-3 is fixed on the layer unit plate 2-2, the heating pipe 2-3 moves along with the layer unit plate 2-2, the heating position is adjusted, the convection fan 2-4 enables air flow inside the layer to be generated, and convection air on the surface of the building material in a geothermal environment is simulated;
as shown in fig. 3, the differential temperature end of the differential temperature device 3 includes: the high-temperature tail end is used for enabling the heating pipes 2-3 of the high-temperature area of the building material plates 6 to generate a high-temperature area, the low-temperature tail end is used for enabling the heating pipes 2-3 of the low-temperature area of the building material plates 6 to generate a low-temperature area, and the intermediate-temperature tail end is used for enabling the heating pipes 2-3 of the intermediate-temperature area of the building material plates 6 to generate an intermediate-temperature area;
the lowest end of the small-sized building material plate 6 corresponds to the lowest end of the building material plate in the actual geothermal environment and has the highest temperature, the heating pipes 2-3 at the lowest end of the building material plate 6 are correspondingly connected with the high-temperature tail end of the temperature difference device 3, the middle upper position of the small-sized building material plate 6 corresponds to the lowest temperature point of the building material plate in the actual geothermal environment and has the lowest temperature, the heating pipes 2-3 in the area on the building material plate 6 are correspondingly connected with the low-temperature tail end of the temperature difference device 3, and the heating pipes 2-3 in other areas of the small-sized building material plate 6 are correspondingly connected with the middle-temperature tail end of the temperature difference device according to the temperature corresponding to the area on the building material plate in the actual geothermal environment, so that the surface of the small-sized building material plate generates a temperature distance.
Detailed description of the invention
This embodiment is based on the first embodiment, and specifically;
the cross section of the mixing cavity is semicircular, the semicircular opening is connected with the isolating door 4, and the inner wall of the mixing cavity is provided with a convex strip for guiding airflow, and the convex strip is annular or spiral.
Detailed description of the invention
The embodiment is based on the first or second embodiment, and is specifically shown in fig. 4 and 5;
the isolation door 4 includes: the isolation door motor drives the isolation baffle to move so as to realize the opening and closing of the isolation door 4;
the isolation door shield includes: the door comprises main door plates 4-1, connecting door plates 4-2, auxiliary door plates 4-3 and a driving shaft 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, hinged shafts at two ends of the connecting door plates 4-2 are respectively connected in a first slide way 4-5 in a sliding manner through sliding blocks, the first slide way 4-5 is arranged in parallel with an isolating door 4, one end of the auxiliary door plate 4-3 is connected in a second slide way 4-6 in a sliding manner through sliding blocks, the second slide way 4-6 is obliquely arranged with the isolating door 4, and the two second slide ways 4-6 are arranged in parallel, a pull rod is arranged at one end of the two main door panels 4-1 hinged with the connecting door panel 4-2, the outer end of the pull rod is connected with one end of a rope, the other end of the rope is wound on the driving shaft 4-4, the driving shaft 4-4 is arranged at one side of the isolating door 4 far away from the sampling tube 5, and a circulating fan 4-7 is arranged at one side of the auxiliary door panel 4-3 close to the volatilization cavity 1;
the driving shaft 4-4 is rotated through the isolating door motor, so that a rope is wound on the driving shaft 4-4, the rope pulls the pull rod, the pull rod drives the main door plates 4-1 to rotate and simultaneously move towards the middle, the hinged part of the two main door plates 4-1 moves 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 airflow, so that the airflow flows along the side wall, the two auxiliary door plates 4-3 slide along the inclined second slide ways 4-6, and the auxiliary door plates 4-3 rotate due to the inclined arrangement of the second slide ways 4-6, so that the circulating fan 4-7 is driven to rotate, the circulating fan 4-7 is changed into an inclined side wall from being vertical to the side wall, and annular air flowing circulation along the side wall is formed;
both ends of the isolation door 4 are provided with elastic pieces, and outward pulling force is applied to both ends of the isolation door 4.
Detailed description of the invention
The present embodiment is based on the first embodiment, and specifically, is shown in fig. 6;
the sampling tube 5 is perpendicular to the layer units 2, and a plurality of through holes are axially formed in the surface of the sampling tube 5;
the sampling tube 5 comprises: 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 inner part of the flow limiting pipe 5-1 is coaxially provided with the outer sampling pipe 5-3, the side wall of the outer sampling pipe 5-3 is provided with a plurality of outer sampling openings, the inner part of the outer sampling pipe 5-3 is coaxially provided with the inner sampling pipe 5-4, the side wall of the inner sampling pipe 5-4 is provided with a plurality of inner sampling openings 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 sampling pipe driving structure enables the inner sampling pipe 5-4 to move relative to the outer sampling pipe 5-3 to form a switch structure which is opened when the inner sampling openings and the outer sampling openings coincide and is closed when the inner sampling openings and the outer sampling openings do not coincide, the lower end of the outer sampling pipe 5-3 is provided with a circulating turbine 5-2;
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 from the side surface of the upper end of the flow limiting tube 5-1, washes the side wall of the mixing cavity, then flows to the side surface of the lower end of the flow limiting tube 5-1, enters the flow limiting tube 5-1 to form mixing circulation in the mixing cavity, is matched with the large circulation of the temperature difference volatilization layer and the mixing cavity, further improves the mixing effect, enables the gas to be uniformly distributed, and drives the inner sampling tube 5-4 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 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 arranged on the side face of the sampling pipe 5.
Detailed description of the invention
The method for detecting the volatility of the building material simulating the geothermal environment provided by the embodiment is applied to a device for detecting the volatility of the building material simulating the geothermal environment according to the first, second or fourth embodiment;
specifically, as shown in fig. 1 to 3, the method includes the following steps:
step a: setting a temperature distance curve from the lowest end to the highest end of a vertically placed plate in a geothermal environment, and selecting the temperature a at the highest temperature point and the temperature b at the lowest temperature point in the temperature distance curve;
step b: and obtaining an arithmetic progression of the temperature according to the temperature a and the temperature b: b. b + Δ t … b + n Δ t, 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 corresponding to 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 the plurality of layer units 2 through the layer driving piece 2-1 to enable the 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 the jack on the layer unit 2;
step g: sealing the box body 1, closing the isolating door 4 and preserving heat;
step h: and (3) opening the isolation door 4, enabling the gas between the layer units 2 to enter a mixing cavity, and performing sampling detection through the sampling tube 5 after mixing in the mixing cavity.
Detailed description of the invention
In this embodiment, on the basis of the fifth specific embodiment, specifically, in the step c, when the number of the positions corresponding to the temperature value is equal to the number of the temperature values, the number of the positions or the number of the temperature values is obtained to determine the number of the layer units 2, and when the number of the positions corresponding to the temperature value is greater than the number of the temperature values, the number of the positions is obtained to determine the number of the layer units 2.
Detailed description of the invention
In this embodiment, on the basis of the fifth embodiment, specifically, in the step g, the convection fans 2-4 on the layer unit 2 are rotated at a low speed to generate the airflow flowing along the surface of the building material plate 6, so as to simulate the convection of air.
Detailed description of the invention
In this embodiment, on the basis of the fifth embodiment, specifically, in the step h, the convection fans 2 to 4 on the layer unit 2 are rotated at a high speed when the gas mixing is performed.
Detailed description of the invention
In this embodiment, on the basis of the fifth, sixth, seventh or eighth embodiment, specifically, the method for detecting the volatility of the building material simulating a geothermal environment is applied to a device for detecting the volatility of the building material simulating a geothermal environment.
Detailed description of the preferred embodiment
In this embodiment, on the basis of the ninth embodiment, specifically, the building material volatility detecting apparatus for simulating a geothermal environment includes: 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.
Detailed description of the invention
The present invention discloses a local temperature control structure for detecting building material volatility, which is applied to a building material volatility detection apparatus simulating geothermal environment according to the first, second or fourth embodiments;
as shown in fig. 7, specifically, the method includes: the heating plate 2-5 and the differential temperature device 3, the heating plate 2-5 is arranged on the side surface of the building material plate 6, one side of the heating plate 2-5 far away from the building material plate 6 is provided with a plurality of heating pipes 2-3, 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 more 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 are respectively connected with the output pipes at two sides and form a middle through one output pipe, 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 the 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 one output pipe, the two output pipes respectively generate a high-temperature end and a low-temperature end, a first mixed water bath 3-3 is arranged between the two output pipes, the first mixed water bath 3-3 is respectively connected with the output pipes of the high-temperature water bath 3-1 and the low-temperature water bath 3-2 and generates a medium-temperature end through one output pipe, the second mixed water bath 3-3 and the third mixed water bath 3-3 are respectively connected with the The high-temperature tail end and the middle-low temperature tail end are respectively provided with a fourth mixed water bath 3-3 … …, a fifth mixed water bath 3-3 … …, a sixth mixed water bath 3-3 and a seventh mixed water bath 3-3 … …, which are arranged in sequence, in four intervals formed by arranging the five delivery pipes according to the temperature, so as to generate a plurality of tail ends with the temperature in an arithmetic progression from the high-temperature tail end to the low-temperature tail end, the plurality of tail ends are respectively connected with the heating pipes 2-3 on the heating plates 2-5, the heating pipes 2-3 are fixed on the layer unit 2, and the heating positions of the heating pipes 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 are intercepted through the mixed water baths 3-3 to obtain the tail ends with different temperatures, and the temperature of the tail ends can be ensured to be unchanged under the condition that the temperatures of the high-temperature water bath 3-1 and the low-temperature water bath 3-2 are ensured to be unchanged.
Detailed description of the invention
This embodiment is based on the eleventh embodiment, and specifically, is shown in fig. 9;
the heating plate 2-5 includes: the heat-insulating plate comprises a fixed plate 2-5-1, a heat-insulating layer 2-5-2, heat dissipation blocks 2-5-3 and tension wheels 2-5-4, wherein a building material plate 6 is fixed on one side of the fixed plate 2-5-1, the heat-insulating layer 2-5-2 is arranged on the other side of the fixed plate 2-5-1, the two ends of the heat-insulating layer 2-5-2 in the moving direction of a layer unit 2 are fixedly connected with the fixed plate 2-5-1, a plurality of heat dissipation blocks 2-5-3 are arranged between the heat-insulating layer 2-5-2 and the fixed plate 2-5-1, the tension wheels 2-5-4 are arranged on the two sides of each heat dissipation block 2-5-3 and used for pressing the heat-insulating layer 2-5-2 on the fixed plate 2-5-1, the heating pipe 2-3 is arranged in the through hole, and the heat dissipation block 2-5-3 and the tensioning wheel 2-5-4 are fixed on the layer unit 2 and move along with the layer unit 2;
the heat dissipation block 2-5-3 is covered with the heat insulation layer 2-5-2, so that heat is prevented from being diffused, and meanwhile, the heat is uniformly diffused on the fixing plate 2-5-1.
Detailed description of the invention
The present embodiment is based on the specific mode eleven or twelve, and specifically, is shown in fig. 10;
the building material temperature measuring device is characterized by further comprising a temperature measuring device 7, wherein the temperature measuring device 7 is used for detecting the surface temperature of the building materials and the distance between the building materials and a 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 based on the specific mode thirteen, and specifically, is shown in fig. 10;
the device further comprises a patrol instrument 8, wherein the patrol instrument 8 is respectively connected with the high-temperature water bath 3-1 and the low-temperature water bath 3-2, and the temperature of the high-temperature water bath and the temperature of the low-temperature water bath and the position of the layer unit 2 are set according to the temperature distance curve.
Detailed description of the invention
The present embodiment is based on the specific mode fourteen, and specifically, is shown in fig. 10;
and 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 patrol instrument 8.
Detailed description of the invention
The present embodiment is based on the specific mode thirteen, and specifically, is shown in fig. 10;
the temperature measuring device 7 includes: the temperature measuring device comprises an infrared temperature sensor 7-1, a moving assembly 7-2 and a temperature measuring 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 direction of a geothermal end and a non-geothermal end of a building material, the infrared temperature sensor 7-1 is connected with the temperature measuring controller 7-3, and the temperature measuring controller 7-3 is connected with the patrol instrument 8.
Detailed description of the invention seventeen
The present embodiment is based on the thirteenth, fourteenth, fifteenth, sixteenth or seventeenth embodiment, and specifically, the control structure is applied to a building material volatility detecting apparatus simulating a geothermal environment.
Description of the preferred embodiment eighteen
In this embodiment, in addition to the seventeenth embodiment, a building material volatility detecting apparatus that simulates a geothermal environment includes: 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.
Detailed description of the invention nineteen
The present 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 according to the eleventh, twelfth, fourteenth, fifteenth or sixteenth embodiment, and specifically, with reference to fig. 10, the method includes the following steps:
step a: according to a temperature distance curve from the lowest end to the highest end of a vertically placed plate in a geothermal environment, selecting the temperature a at the highest temperature point and the temperature b at the lowest temperature point in the temperature distance curve;
step b: the patrol instrument 8 respectively controls the heaters and radiators 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 of 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 temperature a through one eduction tube, the low-temperature water bath 3-2 generates the end of temperature b through one eduction tube, and the two eduction tubes are mixed through the first mixed water bath 3-3 and then generated through one eduction tube
Temperature of
The second and the third mixed water baths 3-3 are respectively arranged in two intervals formed by arranging the 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 two sides and form the temperature by a delivery pipe
End and temperature of
The four intervals formed by arranging the 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 in sequence, so that a plurality of temperatures are generated: b.
a, wherein n is the number of the mixed water baths 3-3;
step d: according to the temperature value in the step c: b.
a, according to the temperature distance curve,obtaining a distance value corresponding to each temperature value, distributing a heating pipe 2-3 to 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: and d, adjusting the positions of the plurality of layer units 2 through the layer driving piece 2-1 to adjust the heating pipes 2-3 of the layer units 2 to the distance value obtained in the step d.
Detailed description of the invention twenty
In this embodiment, on the basis of a nineteenth specific embodiment, specifically, as shown in fig. 10, in the step a, the temperature measuring device 7 controls the moving assembly 7-2 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 simultaneously record the distance and the temperature value to obtain a temperature distance curve of the surface of the building material, and the temperature distance curve is sent to the patrol instrument 8 through the temperature measuring controller 7-3.
Detailed description twenty-one
In this embodiment, on the basis of nineteen specific embodiments, as shown in fig. 9, specifically, in step e, when the heating pipe 2-3 is used for heating, the heat is dissipated through the heat dissipating block 2-5-3 sleeved outside the heating pipe 2-3.
Detailed description of the invention twenty two
In this embodiment, on the basis of twenty-one of the specific embodiments, as shown in fig. 9, specifically, the thermal insulation layer 2-5-2 covers the outer side of the heating block 2-5-3 to reduce the temperature loss, and the thermal insulation layer 2-5-2 covers the side of the building material plate 6 contacting with the heating block 2-5-3.
Detailed description of the invention
The embodiment is based on the 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
In this embodiment, on the basis of twenty-third embodiment, specifically, the local temperature control structure for detecting the volatility of the building material 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, one side, away from the building material plate 6, of the heating plate 2-5 is provided with a plurality of heating pipes 2-3, 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 more heating pipes 2-3.
The above embodiments are merely illustrative of the present patent and do not limit the scope of the patent, and those skilled in the art can make modifications to the parts thereof without departing from the spirit and scope of the patent.
Claims (6)
1. A temperature control method for detecting the volatility of building materials is characterized by comprising the following steps:
step a: according to a temperature distance curve from the lowest end to the highest end of a vertically placed plate in a geothermal environment, selecting the temperature a at the highest temperature point and the temperature b at the lowest temperature point in the temperature distance curve;
step b: the patrol instrument (8) respectively controls heaters and radiators 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 of the low-temperature water bath (3-2) is kept at the temperature b;
step c: the high-temperature water bath (3-1) generates the temperature a through the tail end of one eduction tube, the low-temperature water bath (3-2) generates the temperature b through the tail end of one eduction tube, and the two eduction tubes generate the temperature through the 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 the three delivery pipes according to the temperature, the second and the third mixed water baths (3-3) are respectively connected with the delivery pipes at two sides and form the temperature by one delivery pipe
End and temperature of
The four intervals formed by arranging the 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:
wherein n is the number of mixed water baths (3-3);
step d: according to the temperature value in the step c:
corresponding to the temperature distance curve to obtain a distance value corresponding to each temperature value, 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: and d, adjusting the positions of the plurality of layer units (2) through the layer driving piece (2-1) to adjust the heating pipes (2-3) of the layer units (2) to the distance values obtained in the step d.
2. The temperature control method for building material volatility detection according to claim 1, wherein in the step a, the temperature measuring device (7) controls the moving assembly (7-2) 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 simultaneously, the distance and the temperature value are recorded, so that a temperature distance curve of the surface of the building material is obtained and sent to the patrol instrument (8) through the temperature measuring controller (7-3).
3. The temperature control method for detecting the volatility of the building material as claimed in claim 1, wherein in the step e, when the heating pipe (2-3) is used for heating, heat is dissipated through a heat dissipating block (2-5-3) sleeved outside the heating pipe (2-3).
4. The temperature control method for building material volatility detection according to claim 3, wherein temperature loss is reduced by covering the outside of the heating block (2-5-3) with the insulating layer (2-5-2), and the insulating layer (2-5-2) covers the side of the building material plate (6) in contact with the heating block (2-5-3).
5. A temperature control method for building material volatility detection according to claim 1, 2, 3 or 4, wherein the method is applied to a localized temperature control structure for building material volatility detection.
6. A temperature control method for building material volatility detection as recited in claim 5, wherein said local temperature control structure for building material volatility detection comprises: 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), one side, away from the building material plate (6), of the heating plate (2-5) is provided with a plurality of heating pipes (2-3), the differential temperature device (3) comprises a plurality of differential temperature terminals with different temperatures, and each differential temperature terminal is connected with one or more heating pipes (2-3).
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| CN201934723U (en) * | 2011-01-10 | 2011-08-17 | 深圳成霖洁具股份有限公司 | Temperature control device |
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