CN109342487B - Method for detecting gas in test chamber - Google Patents

Abstract

The invention relates to the technical field of test detection, in particular to a method for detecting gas in a test box, which comprises a vibrating device, a geothermal box, a vibration filtering spring, the test box, a connecting member, a limiting frame and a sampling device, wherein the vibrating device is arranged on the geothermal box; the upper end of the vibrating device is provided with a geothermal tank, the geothermal tank is connected with the vibrating device through a filtering vibration spring, the upper end of the geothermal tank is provided with a test box, the test box is connected with the geothermal tank through a connecting member, the test box is movably arranged in a limiting frame, the side wall of the test box is provided with a plurality of sampling devices, the problem of how to better simulate real indoor environment is solved, the problem of the progress of a test is solved, factors influencing the volatilization speed of a floor are determined through the test, the influence condition of the factors is determined, and when the floor is installed and laid, a mechanic is guided to control related influence factors in a reasonable range, the volatilization speed of organic gases such as formaldehyde is reduced, the content of formaldehyde in indoor air is reduced to the maximum degree, and the amount of harmful gases in a suction body is reduced to the maximum degree.

Description

Method for detecting gas in test chamber

Technical Field

The invention belongs to the technical field of test detection, and particularly relates to a method for detecting gas in a test chamber.

Background

The floor heating is a mode of heating water to a certain temperature, conveying the water to a water pipe heat dissipation network under the floor, and realizing the heating purpose by heating the floor.

As the floor is added with additives in the production process, the additives can volatilize and generate chemical substances such as organic gases such as formaldehyde and the like, and are main sources of indoor pollutants, the main factors causing the volatilization of the floor are temperature and humidity, and people carry out a plurality of related tests aiming at the volatilization of the formaldehyde caused by the temperature and the humidity, but the following problems exist:

(1) whether the laying mode of the heating pipe influences the volatilization speed of the floor or not;

(2) the heating layer in contact with the floor is fully dried, and the moisture content of the heating layer affects the volatilization speed of the floor;

(3) the walking frequency on the floor, whether the tiny deformation generated on the floor can accelerate the volatilization speed of the floor or not;

(4) the distances between the skirting lines and the surface of the floor are different, and whether the volatilization speed of the floor is influenced by different limiting effects on the floor;

aiming at the possible influence factors, how to determine the influence of each factor on the formaldehyde volatilization speed through tests, how to better simulate the real indoor environment and accelerate the test process is a problem to be solved urgently, and the factor influencing the floor volatilization speed and the influence condition thereof are determined through tests.

Disclosure of Invention

The invention overcomes the defects of the prior art, provides a method for detecting gas in a test box, and aims to solve the problems of better simulating real indoor environment and determining the influence of each factor on formaldehyde volatilization speed.

The technical scheme of the invention is as follows:

a test box for simulating geothermal energy comprises a vibration device, a geothermal box, a vibration filtering spring, a test box, a connecting component, a limiting frame and a sampling device; the upper end of the vibrating device is provided with a geothermal tank, the geothermal tank is connected with the vibrating device through a filtering vibration spring, the upper end of the geothermal tank is provided with a test box, the test box is connected with the geothermal tank through a connecting member, the test box is movably arranged in the limiting frame, and the side wall of the test box is provided with a plurality of sampling devices;

the test box comprises a bottomless box body, a first area, a second area, a third area, a fourth area, a movable limiting device, a fixed limiting device and a cover plate; the bottom of the bottomless box body is arranged at the upper end of the geothermal box through a connecting member, the bottomless box body can relatively rotate with the geothermal box through the connecting member, the bottomless box body is equally divided into four regions including a first region, a second region, a third region and a fourth region through a partition plate, large floor blocks are paved at the bottoms of the first region and the fourth region, small floor blocks are paved at the bottoms of the second region and the third region, the lower end surfaces of the large floor blocks and the small floor blocks are abutted against the upper end surface of the geothermal box, movable limiting devices capable of adjusting limiting displacement are arranged in the first region and the second region, fixed limiting devices incapable of adjusting limiting displacement are arranged in the third region and the fourth region, the lower ends of the movable limiting devices and the fixed limiting devices are abutted against the floor blocks, and the other end of the movable limiting devices and the fixed limiting devices are arranged on a cover plate of the bottomless box body, the vibrating device can drive the floor blocks in the bottomless box body to vibrate, deformation caused by tension generated by walking on the floor by a person is simulated, and meanwhile air flow on the surface of a real indoor floor is simulated.

Preferably, the vibration device comprises a roll shaft, a first wafer, a second wafer, a pin rod, a vibration box, a triangular roll, a transmission rod, a motor and a limiting plate; first round sheets are symmetrically arranged at two ends of the roll shaft in parallel, second round sheets are arranged between the roll shaft and the first round sheets, the second round sheets are respectively and fixedly connected with the roll shaft and the first round sheets through pin rods, the two pin rods are arranged at two ends of the second round sheets, and be central symmetry about the centroid of second disk, first disk passes through the pivot and rotates the inside that sets up at the vibration box, two triangle roller parallel rotation set up on the vibration incasement wall of the top of roller, the one end of triangle roller passes through the transfer line and sets up on the pin lever between roller and second disk, the other end of triangle roller passes through the transfer line and sets up on the pin lever of another second disk and first disk, the vibration incasement wall is provided with the motor, the output of motor links to each other with the pivot, the triangle roller supports against with the geothermol power box mutually, the lateral wall parallel symmetry of vibration box is provided with the limiting plate, the activity of geothermol power box sets up between two limiting plates.

Preferably, the geothermal tank comprises a geothermal tank body, a sliding frame, a heat transfer layer, a heating plate, an adiabatic reflecting layer and a sealing plate; it has two symmetrical spouts to open on the parallel lateral wall of geothermol power box, it is provided with the sliding frame to slide respectively on the symmetrical spout, be provided with the heat transfer layer in the sliding frame of upper end, be provided with the heating plate in the sliding frame of lower extreme, and it has circular through-hole and bar through-hole to open on the sliding frame lateral wall of lower extreme, heat-insulating reflection layer has been laid to the inside wall bottom of geothermol power box, the heat transfer layer leans on with the floor block in the box of no end counterbalance, the closing plate passes through the bolt fastening on the parallel lateral wall of geothermol power box, it has circular through-hole and bar through-hole to open on the closing plate, and correspond with circular through-hole and the bar through-hole case on the sliding frame lateral wall.

Preferably, the connecting component comprises an arc-shaped limiting sheet, an arc-shaped limiting strip, a first arc-shaped sheet and a second arc-shaped sheet; the spacing piece symmetry of arc sets up in the outer wall upper end of geothermol power box, and the spacing piece upper end of arc is provided with the spacing strip of arc, and first arc piece symmetry sets up at the lateral wall lower extreme of no end box, and the second arc piece that parallel symmetry set up slides and sets up between first arc piece, and first arc piece passes through bolted connection with the spacing piece of arc, and the outer wall of first arc piece offsets with the inner wall of the spacing strip of arc and leans on.

Preferably, the lower end of one parallel side wall of the bottomless box body is provided with a groove, and the air inlet end of the sampling device penetrates through the side wall of the bottomless box body and is arranged in the bottomless box body.

Preferably, the inside wall of first arc piece is opened there is T type spout, the lateral wall of second arc piece is provided with T type draw runner, parallel symmetry sets up that T type draw runner slides and sets up in T type spout, the symmetry is opened on the spacing piece of arc has the through-hole, all open the through-hole corresponding with the spacing piece of arc on first arc piece and the second arc piece, the spacing piece of arc links to each other through the bolt that passes the through-hole with first arc piece, second arc piece front end is provided with the blend stop, the blend stop sets up in the recess of no end box lower extreme, it encloses into circularly to lean on first arc piece and the second arc piece that leans on at no end box lateral wall, circular shape radius is the same with the internal diameter of the spacing piece of arc.

Preferably, the sampling device comprises a sampling tube, a sampling cylinder, a limiting rod, a return spring, a plugging sheet, a limiting sheet and a sampling cylinder; the sampling tube lateral wall is opened there is the inlet port, the sample drum outer wall is provided with the external screw thread, sample drum lateral wall one end links to each other with the sampling tube, sample drum inner wall is provided with gag lever post and reset spring, and reset spring's one end links to each other with the gag lever post, and the other end is connected with the shutoff piece, and the shutoff piece leans on with sample drum lateral wall counterbalance, and the one end of member links to each other with the gag lever post, and the other end passes gag lever post and reset spring and is connected with the shutoff piece, and the front end and the sampling tube of sampling tube pass through threaded connection.

A method of operating a test chamber simulating geothermal heat, comprising the steps of:

fixing a vibrating device provided with a geothermal tank on a horizontal ground;

step two, manufacturing large and small floor blocks according to the ground size of the actual indoor space and the simulated bottom surface sizes of the first area, the second area, the third area and the fourth area, inlaying and splicing the large floor block and the small floor block according to the bottom surface sizes of the first area and the fourth area, and inlaying and splicing the small floor blocks according to the bottom surface sizes of the second area and the third area;

pulling out the sliding frame, placing the heat transfer layer and the heating plate in the sliding frame, respectively enabling a water inlet end and a water outlet end of a heating pipe of the heating plate to penetrate through a circular through hole and a strip-shaped through hole of the sealing plate, which correspond to the sliding frame, respectively, connecting the water inlet end and the water outlet end with a water pipe, a circulating pump and a heating water tank, pushing the sliding frame into symmetrical sliding grooves, and fixing the sealing plate on parallel side walls of the geothermal box body by using bolts;

fourthly, the bottomless box body is placed at the upper end of the geothermal box body, the upper end face of the arc-shaped limiting sheet is abutted against the lower end face of the first arc-shaped sheet, the outer side wall of the arc-shaped limiting sheet is abutted against the 5-2 inner side wall box, a bolt penetrates through holes in the arc-shaped limiting sheet and the first arc-shaped sheet to fix the arc-shaped limiting sheet and the first arc-shaped sheet, the two spliced ground plates are inserted into the bottomless box body, the first area and the fourth area along a groove formed at the lower end of a parallel side wall of the bottomless box body, the two spliced small floor plates are inserted into the second area and the third area along a groove formed at the lower end of the parallel side wall of the bottomless box body, a T-shaped sliding strip of the side wall of the second arc-shaped sheet is inserted into a T-shaped sliding groove formed on the first arc-shaped sheet, a baffle strip is embedded into the groove formed at the lower end of the side wall of the bottomless box body and is abutted against the side wall of the spliced floor plates, then, bolts penetrate through the upper side wall of the T-shaped sliding groove and the T-shaped sliding strip to fixedly connect the first arc-shaped sheet and the second arc-shaped sheet;

step five, sleeving the upper end of a limiting frame on the bottomless box body, fixing the supporting end of the limiting frame on the horizontal ground, adjusting the movable limiting devices to enable the distance between the limiting frames of the movable limiting devices and the fixed limiting devices and the distance between the limiting frames of the fixed limiting devices and the cover plate to be the same, correspondingly inserting the two movable limiting devices into the first area and the second area, correspondingly inserting the two fixed limiting devices into the third area and the fourth area, enabling the limiting frames to abut against the upper end face of the floor block, and fixing the cover plate on the upper end of the bottomless box body through locking pieces to seal the bottomless box body;

step six, a motor is started, the output end of the motor drives the first wafer, the second wafer, the pin rods and the roll shaft to rotate, the pin rods drive the triangular rolls to rotate through the transmission rods, the two pin rods are arranged at two ends of the second wafer, are centrosymmetric about the centroid of the second wafer and pass through the transmission rods which are arranged in equal length, so that the two triangular rolls can synchronously rotate, the lower end face of the geothermal tank is ensured to be always kept horizontal under the action of the two triangular rolls which synchronously rotate, the reciprocating vibration is realized under the action of a vibration filtering spring, the vibration enables the embedded floor blocks to vibrate up and down in a reciprocating manner, the edges of the well spliced floor blocks can generate tension due to the limiting action of the limiting frame, the tension can enable the floor blocks to generate extremely small deformation, and the deformation caused by the tension generated when a person walks on the floor blocks is simulated by controlling the rotation frequency of the motor, the air flow speed is increased, the air flow on the surface of a real indoor floor is simulated, and meanwhile, harmful substances generated by floor volatilization are accelerated to enter the bottomless box body;

step seven, turning off a motor, adjusting the spacing frame to be separated from the floor block by adjusting the two movable spacing devices, adjusting the distance between the spacing frame and the upper end surface of the floor block according to the test, then performing the test on the starting motor, repeatedly controlling the turning-off and the turning-on of the motor for a plurality of times, adjusting the distance between the spacing frame and the upper end of the floor block to obtain a plurality of test results for analysis and research, wherein the large floor block and the small floor block which are identically embedded and spliced need to be replaced again in each test, and are inserted into the corresponding area of the bottomless box body;

step eight, a motor is turned off, a bolt on the sealing plate is rotated, the sealing plate is detached from the geothermal box body, a sliding frame is pulled open to replace a heat transfer layer with different moisture contents produced in advance, or heating plates with different heat supply pipeline laying modes are replaced, the sliding frame is pushed into a symmetrical sliding groove, the sealing plate is fixed on the geothermal box body through the bolt, sealing is achieved, the motor is started to conduct a test, the motor can be controlled to be turned off and turned on repeatedly for many times, the heat transfer layer with different moisture contents is replaced, or the heating plates with different heat supply pipeline laying modes are replaced, a plurality of test results are obtained, parameters influencing the test are analyzed and researched, and two parts of large and small floor blocks which are the same in mosaic and splicing need to be replaced again in each test, and the large and small floor blocks are inserted into a corresponding area of the bottomless box body.

A method for detecting gas in a test chamber comprises the following steps:

placing a vibrating device on a horizontal ground, assembling and connecting the vibrating device, a geothermal tank, a vibration filtering spring, a test box, a connecting member and a limiting frame, wherein large and small floor blocks for testing which are reduced in equal proportion are paved in a first area, a second area, a third area and a fourth area, a limiting frame abuts against the upper end surfaces of the floor blocks, and a heat transfer layer with the water content of a and a heating plate with a heating pipe which is annularly paved are correspondingly installed in a sliding frame;

step two, adjusting the distance between the limiting frames in the first area and the second area and the upper end surface of the floor block to be a certain test fixed value, starting a motor, timing, turning off the motor 1-8 after 6 hours, rotationally dismounting a bolt for connecting the first arc piece and the arc limiting piece, rotating the test box 4 in a clockwise direction by matching with the limiting frame for 90 degrees, wherein the second arc piece is abutted against the arc limiting piece, the bolt penetrates through a through hole to fixedly connect the second arc piece and the arc limiting piece, starting the motor again, turning off the motor after 6 hours, rotationally dismounting the bolt for connecting the second arc piece and the arc limiting piece, rotating the test box 4 clockwise by 90 degrees, wherein the first arc piece is abutted against the arc limiting piece, the bolt penetrates through the through hole to fixedly connect the first arc piece and the arc limiting piece, repeating the above operations, and rotating for 4 times, the experiment operation is completed by rotating 90 degrees clockwise each time;

step three, after the operation is finished, a motor is turned off, 16 sampling barrels are averagely divided into four groups, every four sampling barrels are correspondingly connected with four sampling barrels arranged on the side wall of an area, the front ends of the sampling barrels are aligned to the external threads of the sampling barrels to rotate, after the sampling barrels are tightly connected, a pull rod of each sampling barrel is pulled, due to the action of atmospheric pressure, a plugging sheet is separated from the side wall of each sampling barrel, gas in the first area, the second area, the third area and the fourth area is pumped into the corresponding sampling barrels, after the sampling is finished, the front ends of the sampling barrels are plugged by a rubber plug, the sampling barrels are subjected to label recording, and after a test is carried out, the sampling is finished;

step four, replacing the heat transfer layer with the water content of b in the sliding frame 2-2, not replacing the heating plate with the heating pipe annularly laid, and repeating the operation of the step two and the operation of the step three;

replacing the heat transfer layer with the water content of a and the heating plate with the heating pipe paved in an arched shape in the sliding frame 2-2, and repeating the operation of the second step and the third step;

step six, replacing the heat transfer layer with the water content of b in the sliding frame 2-2, not replacing the heating plate with the heating pipe laid in the shape of an arch, and repeating the operation of the step two and the operation of the step three;

step seven, detecting gas components, comparing the second area and the third area or the first area and the fourth area marked in the step three, taking out the sampling cylinder for sampling the sampling cylinder with the same height, performing test detection on the gas in the sampling cylinder after sampling, the analysis shows that the water content of the heat transfer layer is the same, the heating condition is the same, the sampling height is the same, the influence of the distance between the limiting frame and the floor block on the floor volatility is compared, the analysis shows that the water content of the heat transfer layer is the same, the laying mode of the heating pipe is the same, the distance between the limiting frame and the floor block is the same, the influence of the size of the floor block on the floor volatility is compared with the first area, the second area, the third area and the fourth area, then, comparing and analyzing the fourth step, the fifth step and the sixth step to obtain data, comparing the data with the data obtained in the third step, and observing the rule;

step eight, gas component detection is carried out, the step three and the step four are subjected to comparative analysis, gas in sampling cylinders sampled by sampling cylinders with the same height and the same area is subjected to test detection, the comparative analysis is carried out, the laying mode of a heating pipe is the same, the distance between a limiting frame and a floor block is the same, the influence of the moisture content of a heat transfer layer on the volatility of the floor is analyzed, then the step five and the step six are subjected to comparative analysis to obtain data, the data are compared with the data obtained in the step three and the step four, and the rule is observed;

step nine, detecting gas components, carrying out comparative analysis on the step three and the step five, carrying out a detection test on gas sampled by sampling cylinders with the same height and the same area, analyzing the influence of the heat transfer layer water content to be the same, the distance between a limiting frame and a floor block to be the same, and the influence of the heating pipe laying mode on the floor volatility, then carrying out comparative analysis on the step four and the step six to obtain data, comparing the data with the data obtained in the step three and the step five, and observing the rule;

step ten, detecting gas components, adopting a variable control method, controlling other variables to be the same, detecting and analyzing gas in sampling cylinders for sampling cylinders with different heights in the same area, researching the change condition of harmful gas distribution generated by floor volatility in the test box 4 along with the height, simultaneously drawing a curve, and analyzing whether the distribution of the harmful gas is uniformly and continuously distributed or has a sudden change value, namely, the harmful gas is uniformly dispersed or mainly concentrated at a certain height from a floor block.

A limit device for a test chamber for simulating terrestrial heat comprises a movable limit device and a fixed limit device; the first area and the second area are internally provided with movable limiting devices capable of adjusting limiting displacement, the third area and the fourth area are internally provided with fixed limiting devices incapable of adjusting limiting displacement, the lower ends of the movable limiting devices and the fixed limiting devices are abutted against the floor block, and the other ends of the movable limiting devices and the fixed limiting devices are arranged on a cover plate of the bottomless box body;

the movable limiting device comprises a driving rotating shaft, a manual rotating disc, a first gear, a ratchet wheel, a driven rotating shaft, a second gear, a threaded bearing, a vernier scale, a main scale, a sleeve, a limiting frame and a limiting component; one end of the driving rotating shaft is rotatably arranged on the inner side wall of the transmission case, the other end of the driving rotating shaft penetrates through a bearing in the cover plate and is connected with the manual rotating disc, a first gear and a ratchet wheel are arranged on the driving rotating shaft in the transmission case, the ratchet wheel is positioned at the lower end of the first gear, the driven rotating shaft is rotatably arranged through the bearing on the cover plate and the bearing on the transmission case, a second gear is arranged on the driven rotating shaft in the transmission case, the first gear is meshed with the second gear, a threaded bearing is arranged at the upper end of the driven rotating shaft, a vernier scale is arranged on the outer wall of the threaded bearing, a 0-line section of the main scale penetrates through the vernier scale and is arranged on the upper end surface of the cover plate, a sleeve is arranged at the lower end of the driven rotating shaft, internal threads are arranged on the inner walls of the threaded bearing and the sleeve, external threads are arranged at two ends of the driven rotating shaft, the external threads of the driven rotating shaft are matched with the internal threads of the threaded bearing and the sleeve, and the sleeve at the lower end of the driven rotating shaft is connected with the limiting frame through a rod piece, the side wall of the transmission case is provided with a limiting component which is matched with the ratchet wheel.

The limiting component comprises an L-shaped rod, a fixing block, an electromagnet, an iron block, a limiting column, a connecting rod, a pressure spring, a baffle and a limiting block); l type pole and fixed block setting are on the lateral wall of transmission case, the fixed block is opened there are first recess and second recess, open the second recess upper end has the through-hole, the L type pole other end is provided with the electro-magnet, be provided with the iron plate under the electro-magnet, the iron plate lower extreme is provided with spacing post and connecting rod, spacing post and connecting rod slide respectively and set up in first recess and through-hole, the other end of connecting rod passes pressure spring and separation blade in the second recess and links to each other with the stopper, the stopper cooperatees with the ratchet, pressure spring's both ends are connected with second recess upper wall and separation blade respectively.

Preferably, the fixing and limiting device comprises a fixing rod and a limiting frame; one end of the fixed rod is arranged on the lower end face of the cover plate, and the other end of the fixed rod is connected with the limiting frame through symmetrically arranged rod pieces.

Preferably, the vernier and the main scale are both provided with scale parts.

Preferably, the manual rotating disc is provided with a mark, and the periphery of the manual rotating disc on the upper end face of the cover plate is provided with a scale part.

A method for adjusting a limiting device for a test chamber simulating geothermal heat comprises the following steps:

step one, electrifying the two limiting members, attracting the iron blocks by the limiting members, driving the limiting blocks to move upwards through the connecting rods, further releasing the limiting function of the limiting block on the ratchet wheel, rotating the manual rotating disc clockwise, driving the first gear to rotate through the driving rotating shaft, driving the driven rotating shaft to rotate anticlockwise through the meshing function of the first gear and the second gear, because the same threads are arranged at the two ends of the driven rotating shaft, the external threads of the driven rotating shaft are matched with the internal threads of the threaded bearing and the sleeve, so that the threaded bearing and the sleeve both move downwards, the threads are the same, so the downward moving distance is the same until the lower end of the threaded bearing is abutted against the upper end surface of the cover plate, namely, in the 0-adjusting stage, the sleeve moves downwards to ensure that the distance between the limiting frames of the movable limiting device and the fixed limiting devices 4-7 and the cover plate is the same, and the power supplies of the two limiting components are disconnected;

correspondingly inserting the two movable limiting devices into the first area and the second area, correspondingly inserting the two fixed limiting devices 4-7 into the third area 4-4 and the fourth area 4-5, enabling the limiting frame to abut against the upper end faces of the floor blocks, and fixing the cover plate at the upper end of the bottomless box body through the locking pieces to realize the sealing of the bottomless box body;

step three, adjusting the distance between the limiting frames in the first area and the second area and the upper end surface of the floor according to the test requirement, namely, a gap is left, when the distance between the limiting frames in the first area and the second area and the upper end surface of the floor board needs to be adjusted to be a fixed value amm, the manual rotating disc is rotated anticlockwise, the manual rotating disc drives the first gear to rotate through the driving rotating shaft, the limiting effect of the limiting block on the ratchet wheel can be overcome by rotating the manual rotating disc anticlockwise, the first gear drives the driven rotating shaft to rotate clockwise through the meshing effect with the second gear, because the same threads are arranged at the two ends of the driven rotating shaft, the external threads of the driven rotating shaft are matched with the internal threads of the threaded bearing and the sleeve, so that the threaded bearing and the sleeve both move upwards, the threads are the same, so that the downward movement distances are the same, the vernier is adjusted to move upwards amm along the main scale, and the distance between the limiting frame and the upper end surface of the floor board can be adjusted to be amm;

the method comprises the following steps: placing a pre-made measuring block with the height of amm on the upper end face of the cover plate and abutting against the scale part of the vernier, rotating the manual turntable anticlockwise to enable the threaded bearing to drive the vernier to move upwards and slowly until the 0 scale line of the vernier coincides with the upper end face of the side top block, and completing distance adjustment, wherein the measuring block can be a cylinder, a cube or a cuboid measuring block;

the second method comprises the following steps: through anticlockwise rotation a week manual dial, observe vernier scale and main scale to read out specific rising distance through vernier scale and main scale and write for bmm, be provided with the mark on the manual dial, be provided with scale division around the manual dial of apron up end, 40 scales of manual dial's mark rotation, every scale corresponds the distance that rises and is

To adjust the vernier elevation amm, the scale of the manual dial to which the indicia rotates is:

i.e. rotate

Each scale is divided into a plurality of scales;

step four, starting a motor, driving the first wafer 1-2, the second wafer, the pin rods and the roll shaft to rotate by the output end of the motor, driving the triangular rollers to rotate by the pin rods through the transmission rods 1-7, arranging the two pin rods at the two ends of the second wafer, being centrosymmetric about the centroid of the second wafer, and connecting the two pin rods with the triangular rollers 1-6 through the transmission rods 1-7 which are arranged in equal length, so that the two triangular rollers can rotate synchronously, ensuring that the lower end surface of the geothermal tank is always kept horizontal in the vibration process under the action of the two triangular rollers rotating synchronously, realizing reciprocating vibration under the action of a vibration filtering spring, vibrating to enable the embedded floor blocks to vibrate up and down in a reciprocating manner, both belonging to a speed change process in the up and down process under the action of the triangular rollers and the vibration filtering spring, changing the motion state of an object under the action of external force according to Newton's second law, the edges of the spliced floor blocks pull the floor blocks connected with the edges to do variable-speed motion due to the limiting action of the limiting frames, so that the spliced floor blocks generate tension action, the tension action can lead the floor blocks to generate extremely tiny deformation, and simulates the deformation of the floor caused by the tension generated by the floor block when a person walks on the floor by controlling the rotation frequency of the motor, meanwhile, the air flow speed is accelerated, the problem that no air flows under the sealing condition is solved, the air flow on the surface of the real indoor floor is fully simulated, meanwhile, the harmful substances generated by floor volatilization are accelerated to enter the bottomless box body, and due to the limiting function of the limiting block on the ratchet wheel, in the vibration process, the first gear limits the rotation of the driven rotating shaft through the meshing action of the first gear and the second gear, so that the threaded bearing and the sleeve cannot rotate relative to the driven rotating shaft, and the distance between the limiting frame and the floor block is ensured to be unchanged;

and step five, turning off the motor, adjusting the distance between the limiting frame and the upper end face of the floor block according to the test by adjusting the two movable limiting devices in the first area and the second area, then starting the motor for testing, correspondingly adjusting the distance between the limiting frame and the upper end face of the floor block by repeatedly controlling the turning-off and the turning-on of the motor for many times to obtain a plurality of test results, drawing a continuous curve of the relationship between the harmful substances volatilized from the floor block in the first area and the second area and the distance between the limiting frame and the upper end face of the floor block, and comparing and analyzing the two curves.

The invention has the beneficial effects that:

(1) the vibration device provided with the geothermal tank is fixed on the horizontal ground, so that the vibration of the geothermal tank and the test box can be ensured to be stable, the floor blocks laid in the first area, the second area, the third area and the fourth area are driven by the test box to vibrate up and down stably, the output end of the motor drives the first round plate, the second round plate, the pin rods and the roll shafts to rotate, the pin rods drive the triangular rolls to rotate through the transmission rods, the two pin rods are arranged at two ends of the second round plate and are centrosymmetric about the centroid of the second round plate, and are connected with the triangular rolls through the transmission rods arranged in equal length, so that the two triangular rolls can rotate synchronously, the lower end face of the geothermal tank is ensured to be kept horizontal all the time under the action of the two triangular rolls rotating synchronously, the reciprocating vibration is realized under the action of the vibration filtering spring, and the vibration enables the embedded floor blocks to vibrate up and down, Lower reciprocating vibration, under the effect of triangle roller and strain and shake the spring, the upper and lower in-process all belongs to the speed variation process, according to newton's second law, because the effect of external force changes the object motion state, the edge of the floor block that the concatenation is good is because the limiting displacement of spacing frame, the pulling does variable speed motion rather than the floor block that links to each other, make the floor block of concatenation produce tension, tension can make the floor block take place extremely minute deformation, and the rotational frequency through the control motor, the deformation that the anthropomorphic dummy walked the tension that produces the floor block on the floor and leads to, accelerate the air flow speed simultaneously, the problem that does not have the air flow under the sealed condition has been overcome, the air flow on the real indoor floor surface of full simulation, accelerate the harmful substance that the floor volatilizees the production and gets into the box of no end at the same time.

(2) Big, little floor block is makeed according to the proportion of the first region of actual indoor space ground size and simulation, second region, third region, the bottom surface size of fourth region, inlay the concatenation two with the ground plate according to the bottom surface size in first region, the fourth region, inlay the concatenation two with the bottom surface size in the second region, the third region with little floor block, the ground plate has been laid to the bottom in first region and fourth region, little floor block has been laid to the bottom in second region and third region, the lower terminal surface of ground plate and little floor block leans on with the up end of ground heat box counterbalance, and the size of floor block through each regional setting is different, plays better simulation effect, effectively combines the influence of control variable method to each factor to the volatilization speed of floor block simultaneously.

(3) The bottom of the bottomless box body is arranged at the upper end of the geothermal tank through the connecting member, the bottomless box body can rotate relative to the geothermal tank through the connecting member, the heat loss caused by the heat transfer effect of the geothermal tank is avoided, the temperature of a water inlet of the heating pipe is higher than that of a water outlet of the heating pipe, the first area, the second area, the third area and the fourth area of the four areas can be heated unevenly, the influence of all factors on the volatilization speed of the floor block cannot be researched through a control variable method, the test box can be controlled to rotate around the geothermal tank through the action of the connecting member, the position of each area is rotated, the heating condition of each area is completely the same through controlling the rotation time, the effect that the heating condition is the same is achieved, and the influence of the variable method on the volatilization speed of all factors on the floor block is effectively combined and controlled.

(4) The sliding frame is controlled, a plurality of manufactured heat transfer layers and the heating plate are sequentially placed in the sliding frame, the heat transfer layers and the heating plate can be replaced for many times, research can be conducted through a control variable method, and the moisture content of the heat transfer layers and the laying mode of the heating pipes affect the volatilization speed of the floor.

(5) Gas component detection is carried out, a sampling cylinder for sampling the sampling cylinder with the same height is taken out, gas in the sampling cylinder after sampling is carried out is tested and detected, contrastive analysis is carried out, the analyzable heat transfer layer has the same water content, the same heating condition and the same sampling height, the influences of the distances between a limiting frame and a floor block on the floor volatilization speed are compared, the analyzable heat transfer layer has the same water content, the same laying mode of a heating pipe is carried out, the distances between the limiting frame and the floor block are the same, the influences of the heat transfer layer water content on the floor volatilization speed are the same, the influences of the sizes of the floor block on the floor volatilization speed can be tested twice for the gas with the same height and the same area, contrastive analysis is carried out, the same laying mode of the analyzing heating pipe is carried out, the same distance between the limiting frame and the floor block is the same, the influence of heating pipe laying mode to floor volatilization speed still can adopt the control variable method, and control other variables is the same, and to same region, the not gas detection and analysis of co-altitude, the harmful gas distribution that the research test incasement floor volatility produced can draw the curve simultaneously along with the situation of change of height, and the analysis can know whether the distribution of harmful gas is even continuous distribution, still exists the sudden change value, and evenly dispersed still mainly concentrates on apart from floor block a certain height department promptly.

(6) The distance between the limiting frame in the first area and the distance between the limiting frame in the second area and the upper end face of the floor are adjusted according to test requirements, namely gaps are reserved, the same threads are arranged at the two ends of the driven rotating shaft, the external threads of the driven rotating shaft are matched with the internal threads of the threaded bearing and the sleeve, and the distances of upward or downward movement of the threaded bearing and the sleeve are the same all the time, so that the distance of upward or downward movement of the limiting frame can be obtained by adjusting the upward or downward movement distance of the vernier along the main ruler;

the first method for measuring the distance from the limiting frame to the upper end surface of the floor comprises the following steps: placing a pre-made measuring block with the height of amm on the upper end of the cover plate and abutting against the scale part of the vernier, rotating the manual turntable anticlockwise to enable the threaded bearing to drive the vernier to move upwards and slowly until the 0 scale mark of the vernier coincides with the upper end face of the side top block, wherein the measuring block can be a cylinder, a cube or a cuboid measuring block, and can quickly and accurately adjust the required distance value;

and a second method for measuring the distance between the limiting frame and the upper end surface of the floor comprises the following steps: through anticlockwise rotation a week manual dial, observe vernier scale and main scale to read out specific rising distance through vernier scale and main scale and write for bmm, be provided with the mark on the manual dial, be provided with scale division around the manual dial of apron up end, 40 scales of manual dial's mark rotation, every scale corresponds the distance that rises and is

To adjust the vernier elevation amm, the indicia of the manual dial 4-6-2 are rotated:

i.e. rotate

The scale is not needed to be produced and measured in advance, and the required distance can be adjusted through simple calculation.

Drawings

FIG. 1 is a schematic view of the overall structure of a simulated geothermal test chamber according to the present invention;

FIG. 2 is a top view of the combination of the bottomless case, the movable position limiter and the fixed position limiter;

FIG. 3 is a front view of the combination of the bottomless box and the movable limiting device;

FIG. 4 is a front view of the combination of the bottomless case and the fixed limiting device;

FIG. 5 is a cut-away front view of the vibration device;

FIG. 6 is a top view of the internal structure of the vibration box;

FIG. 7 is a schematic view of the connection of the roller, first disc, second disc and pin;

FIG. 8 is a schematic view of the combination of the connecting member and the geothermal tank;

FIG. 9 is a schematic view of the combination of the geothermal tank, the spacing frame and the heat insulating reflective layer;

FIG. 10 is a schematic sectional view of a combination of a geothermal tank, a sliding frame, a heat transfer layer, a heating pan and a heat insulating reflective layer;

FIG. 11 is a top view of a heating plate laid in a loop;

FIG. 12 is a top view of a heating plate laid in an arcuate shape;

FIG. 13 is a schematic view of the connecting member not completely connected with the bottomless tank body;

FIG. 14 is a schematic view of the connecting member not fully connected to the bottomless bin;

FIG. 15 is a schematic view showing the connection relationship between the arc-shaped position-limiting piece, the arc-shaped position-limiting strip, the first arc-shaped piece and the second arc-shaped piece;

FIG. 16 is a schematic view of the second arcuate tab being inserted into a recess in a bottomless bin;

FIG. 17 is a schematic view of the movable stopper;

FIG. 18 is a top view of the structure of the upper end face of the cover plate;

FIG. 19 is a schematic view of the stop member;

FIG. 20 is a schematic view of the fixed stop arrangement;

FIG. 21 is a schematic view of a combination vernier and master scale;

FIG. 22 is a schematic view of the sampling device.

In the figure: 1-vibration device, 1-1 roll shaft, 1-2 first circular sheet, 1-3 second circular sheet, 1-4 pin rod, 1-5 vibration box, 1-6 triangular roll, 1-7 transmission rod, 1-8 motor, 1-9 limiting plate, 2-geothermal box, 2-1 geothermal box, 2-2 sliding frame, 2-3 heat transfer layer, 2-4 heating plate, 2-5 heat insulation reflection layer, 2-6 sealing plate, 3-vibration filtering spring, 4-test box, 4-1 bottomless box, 4-2 first area, 4-3 second area, 4-4 third area, 4-5-fourth area, 4-6-movable limiting device, 4-6-1-driving rotating shaft, 4-6-2-manual rotating disc, 4-6-3-first gear, 4-6-4-ratchet wheel, 4-6-5-driven rotating shaft, 4-6-6-second gear, 4-6-7-threaded bearing, 4-6-8-vernier scale, 4-6-9-main scale, 4-6-10-sleeve, 4-6-11-limiting frame, 4-6-12-limiting component, 4-6-13-L-shaped rod, 4-6-14-fixed block, 4-6-15-first groove, 4-6-16-second groove, 4-6-17-electromagnet, 4-6-18-iron block, 4-6-19-limiting column, 4-6-20-connecting rod, 4-6-21-pressure spring, 4-6-22-blocking piece, 4-6-23-limiting block, 4-7-fixed limiting device, 4-8-cover plate, 5-connecting component, 5-1-arc limiting piece, 5-2-arc limiting strip, 5-3-first arc piece, 5-3-1-T type chute, 5-4-second arc piece, 5-4-1-T type sliding strip, 5-4-2-barrier strip, 6-limit frame, 7-sampling device, 7-1-sampling tube, 7-2-sampling cylinder, 7-3-limit rod, 7-4-reset spring, 7-5-plugging sheet, 7-6-limit sheet and 7-7-sampling cylinder.

Detailed Description

The invention will be described in detail below with reference to the following drawings:

detailed description of the invention

As shown in fig. 1 to 4, the test box for simulating geothermal heat disclosed in this embodiment includes a vibration device 1, a geothermal box 2, a seismic isolation spring 3, a test box 4, a connecting member 5, a limiting frame 6 and a sampling device 7; the upper end of the vibrating device 1 is provided with a geothermal tank 2, the geothermal tank 2 is connected with the vibrating device 1 through a filtering vibration spring 3, the upper end of the geothermal tank 2 is provided with a test box 4, the test box 4 is connected with the geothermal tank 2 through a connecting member 5, the test box 4 is movably arranged in a limiting frame 6, and the side wall of the test box 4 is provided with a plurality of sampling devices 7;

the test box 4 comprises a bottomless box body 4-1, a first area 4-2, a second area 4-3, a third area 4-4, a fourth area 4-5, a movable limiting device 4-6, a fixed limiting device 4-7 and a cover plate 4-8; the bottom of the bottomless box body 4-1 is arranged at the upper end of the geothermal box 2 through a connecting member, the bottomless box body 4-1 can rotate relative to the geothermal box 2 through the connecting member 5, the bottomless box body 4-1 is divided into four regions through partition plates and the four regions are respectively a first region 4-2, a second region 4-3, a third region 4-4 and a fourth region 4-5, large floor blocks are paved at the bottoms of the first region 4-2 and the fourth region 4-5, small floor blocks are paved at the bottoms of the second region 4-3 and the third region 4-4, the lower end surfaces of the large floor blocks and the small floor blocks are abutted against the upper end surface of the geothermal box 2, and movable limiting devices 4-6 capable of adjusting limiting displacement are arranged in the first region 4-2 and the second region 4-3, the third area 4-4 and the fourth area 4-5 are internally provided with fixed limiting devices 4-7 which can not adjust limiting displacement, the lower ends of the movable limiting devices 4-6 and the fixed limiting devices 4-7 are abutted against floor blocks, the other ends of the movable limiting devices 4-6 and the fixed limiting devices 4-7 are arranged on a cover plate 4-8 of the bottomless box body 4-1, the vibrating device 1 can drive the floor blocks in the bottomless box body 4-1 to vibrate, deformation caused by tension generated on the floor blocks when a person walks on the floor is simulated, and meanwhile, air flow on the surface of a real indoor floor is simulated;

the vibrating device 1 provided with the geothermal box 2 is fixed on the horizontal ground, the aim is to ensure that the whole geothermal box 2 and the test box 4 stably vibrate up and down, the floor blocks paved on a first area 4-2, a second area 4-3, a third area 4-4 and a fourth area 4-5 are driven by the test box 4 to stably vibrate up and down, the floor blocks which stably vibrate are matched with the up and down stable vibration by the limiting action of the movable limiting devices 4-6 and the fixed limiting devices 4-7, because the floor blocks are connected in an embedded manner, the floor blocks which are not limited move up and down under the action of the force of the adjacent floor blocks, the deformation caused by the tension generated by the floor blocks when a person walks on the floor is simulated, the floor blocks move up and down under the action of the force of the adjacent floor blocks, and the air flow speed can be increased at the same time, simulating the air flow on the surface of a real indoor floor, and enabling organic gases such as formaldehyde generated by floor volatilization to enter the upper parts of floor blocks in each area;

sleeving the upper end of a limiting frame 6 on a bottomless box body 4-1, fixing the supporting end of the limiting frame 6 on the horizontal ground, adjusting a movable limiting device 4-6 to ensure that the distance between the limiting frame 4-6-11 of the movable limiting device 4-6 and a fixed limiting device 4-7 and a cover plate 4-8 is the same, correspondingly inserting the two movable limiting devices 4-6 into a first area 4-2 and a second area 4-3, correspondingly inserting the two fixed limiting devices 4-7 into a third area 4-4 and a fourth area 4-5, abutting the limiting frames 4-6-11 against the upper end faces of floor blocks, fixing the cover plate 4-8 on the upper end of the bottomless box body 4-1 through locking pieces, and realizing the sealing of the bottomless box body 4-1;

the bottom of the bottomless box body 4-1 is arranged at the upper end of the geothermal box 2 through a connecting member, the bottomless box body 4-1 can rotate relative to the geothermal box 2 through the connecting member 5, the purpose is to realize the heat transfer effect of the geothermal box 2, the temperature of a water inlet of a heating pipe is higher than that of a water outlet, so that the first region 4-2, the second region 4-3, the third region 4-4 and the fourth region 4-5 of the four regions are heated unevenly, the influence of various factors on the volatility of the floor block cannot be researched through a control variable method, the 4 can rotate around the 2 through the 5, the position of each region is rotated, the heating condition of each region is completely the same through controlling the rotation time, and the influence of the variable method on the volatilization speed of the floor block can be effectively combined;

manufacturing large and small floor blocks according to the ground size of an actual indoor space and the simulated bottom surface size of a first area 4-2, a second area 4-3, a third area 4-4 and a fourth area 4-5, inlaying and splicing the large floor block into two parts according to the bottom surface size of the first area 4-2 and the fourth area 4-5, inlaying and splicing the small floor block into two parts according to the bottom surface size of the second area 4-3 and the third area 4-4, paving the large floor block at the bottoms of the first area 4-2 and the fourth area 4-5, paving the small floor blocks at the bottoms of the second area 4-3 and the third area 4-4, enabling the lower end surfaces of the large floor block and the small floor block to be abutted against the upper end surface of a geothermal tank 2, and enabling the sizes of the floor blocks arranged in all the areas to be different, the influence of a variable method on the volatility of each factor on the floor blocks is effectively combined and controlled, and meanwhile, two parts of large and small floor blocks which are inlaid and spliced identically need to be replaced again in each test and are inserted into the corresponding area of the bottomless box body 4-1.

Detailed description of the invention

As shown in fig. 6 to 9, this embodiment is based on the first embodiment, and is different in that the vibration device 1 includes a roller shaft 1-1, a first wafer 1-2, a second wafer 1-3, a pin 1-4, a vibration box 1-5, a triangular roller 1-6, a transmission rod 1-7, a motor 1-8, and a limit plate 1-9; the two ends of the roll shaft 1-1 are symmetrically provided with first round pieces 1-2 in parallel, second round pieces 1-3 are arranged between the roll shaft 1-1 and the first round pieces 1-2, the second round pieces 1-3 are respectively fixedly connected with the roll shaft 1-1 and the first round pieces 1-2 through pin rods, the two pin rods 1-4 are arranged at the two ends of the second round pieces 1-3 and are centrosymmetric about the centroid of the second round pieces 1-3, the first round pieces 1-2 are rotationally arranged in the vibration box 1-5 through rotating shafts, the two triangular rollers 1-6 are rotationally arranged on the inner wall of the vibration box 1-5 above the roll shaft 1-1 in parallel, one end of the triangular roller 1-6 is arranged on the pin rods 1-4 between the roll shaft 1-1 and the second round pieces 1-3 through transmission rods 1-7, the other end of the triangular roller 1-6 is arranged on the pin rod 1-4 of the other second wafer 1-3 and the first wafer 1-2 through a transmission rod 1-7, the outer wall of the vibration box 1-5 is provided with a motor 1-8, the output end of the motor 1-8 is connected with a rotating shaft, the triangular roller 1-6 is abutted against the geothermal box 2, the outer side wall of the vibration box 1-5 is symmetrically provided with limiting plates 1-9 in parallel, and the geothermal box 2 is movably arranged between the two limiting plates 1-9;

starting a motor 1-8, driving a first wafer 1-2, a second wafer 1-3, a pin rod 1-4 and a roller shaft 1-1 to rotate by the output end of the motor 1-8, driving a triangular roller 1-6 to rotate by the pin rod 1-4 through a transmission rod 1-7, arranging the two pin rods 1-4 at two ends of the second wafer 1-3, forming central symmetry about the centroid of the second wafer 1-3, connecting the two triangular rollers 1-6 through the transmission rods 1-7 arranged in equal length, enabling the two triangular rollers 1-6 to rotate synchronously, ensuring that the lower end surface of a geothermal box 2 is kept horizontal all the time under the action of the two triangular rollers 1-6 rotating synchronously, realizing reciprocating vibration under the action of a vibration filtering spring 3, and vibrating to enable the upper part of the floor blocks to be embedded and connected, The lower reciprocating vibration belongs to the speed change process in the up-and-down process under the action of the triangular rollers 1-6 and the vibration filtering spring 3, according to Newton's second law, because the motion state of the object is changed by the action of external force, the edges of the spliced floor blocks pull the floor blocks connected with the edges to do variable-speed motion due to the limiting action of the limiting frames 4-6-11, so that the spliced floor blocks generate tension action which can lead the floor blocks to generate extremely tiny deformation, and simulates the deformation of the floor caused by the tension generated by the floor block when a person walks on the floor by controlling the rotating frequency of the motors 1 to 8, meanwhile, the air flow speed is increased, the problem that air does not flow under the sealing condition is solved, the air flow on the surface of a real indoor floor is fully simulated, and meanwhile, harmful substances generated by floor volatilization are accelerated to enter the bottomless box body 4-1.

Detailed description of the invention

The present embodiment is based on the first embodiment with reference to fig. 8 to 12, except that the geothermal tank 2 comprises a geothermal tank body 2-1, a sliding frame 2-2, a heat transfer layer 2-3, a heating pan 2-4, an adiabatic reflection layer 2-5 and a sealing plate 2-6; two symmetrical chutes are arranged on the parallel side wall of the geothermal box body 2-1, sliding frames 2-2 are respectively arranged on the symmetrical chutes in a sliding way, a heat transfer layer 2-3 is arranged in the sliding frame 2-2 at the upper end, a heating plate 2-4 is arranged in the sliding frame 2-2 at the lower end, the outer side wall of the sliding frame 2-2 at the lower end is provided with a circular through hole and a strip-shaped through hole, the bottom of the inner side wall of the geothermal box body 2-1 is paved with a heat insulation reflection layer 2-5, a heat transfer layer 2-3 is abutted against a floor block in the bottomless box body 4-1, a sealing plate 2-6 is fixed on the parallel side wall of the geothermal box body 2-1 through bolts, and the sealing plate 2-6 is provided with a circular through hole and a strip-shaped through hole and corresponds to the circular through hole and the strip-shaped through hole box on the outer side wall of the sliding frame 2-2;

pulling out the sliding frame 2-2, placing the heat transfer layer 2-3 and the heating plate 2-4 in the sliding frame 2-2, respectively enabling a water inlet end and a water outlet end of a water pipe of the heating plate 2-4 to penetrate through the circular through hole and the strip-shaped through hole of the sealing plate 2-6 corresponding to the sliding frame 2-2, connecting the water inlet end and the water outlet end with the circulating pump and the heating water tank through the water pipe, pushing the sliding frame 2-2 into the symmetrical sliding grooves, and fixing the sealing plate 2-6 on the parallel side walls of the geothermal box body 2-1 of the geothermal box body through bolts, so that the heat transfer layer 2-3 and the heating plate 2-4 can be replaced for multiple times, and research can be carried out by controlling a variable method, wherein the water content of the heat transfer layer and the laying mode of the heating pipe have influence on the volatility of the floor;

the hot water temperature is controlled between 60 ℃ and 70 ℃, the production of a plurality of heat transfer layers 2 to 3 is realized, the heat transfer layers are made of cement, the heat transfer layers are required to be perfect, firm, smooth and clean, have no peeling phenomenon, pits and polished surfaces (the reference detection method is that a coin or a key is used for scraping the cement floor without powder to be perfect), have no dirt and foreign matters such as paint, grease, glue, wax oil and curled compounds and prevent adhesion and delamination, the flatness reaches 1 square meter drop less than or equal to 2mm, and must be dried, and the water content is less than 14 percent;

the heating pipes in the heating plates 2-4 can be laid in various ways, and the main laying method of annular laying and arched laying is mainly adopted.

Detailed description of the invention

The embodiment is based on the first embodiment with reference to fig. 1, 8, 13, 14, 15 and 16, and is different in that the connecting member 5 includes an arc-shaped limiting piece 5-1, an arc-shaped limiting strip 5-2, a first arc-shaped piece 5-3 and a second arc-shaped piece 5-4; the arc-shaped limiting pieces 5-1 are symmetrically arranged at the upper end of the outer wall of the geothermal tank body 2-1, the arc-shaped limiting strips 5-2 are arranged at the upper ends of the arc-shaped limiting pieces 5-1, the first arc-shaped pieces 5-3 are symmetrically arranged at the lower ends of the outer side wall of the bottomless tank body 4-1, the second arc-shaped pieces 5-4 which are symmetrically arranged in parallel are arranged between the first arc-shaped pieces 5-3 in a sliding manner, the first arc-shaped pieces 5-3 are connected with the arc-shaped limiting pieces 5-1 through bolts, and the outer walls of the first arc-shaped pieces 5-3 are abutted against the inner walls of the arc-shaped limiting strips 5-2;

adjusting the distance between a limiting frame 4-6-11 in a first area 4-2 and a second area 4-3 and the upper end surface of the floor block to be a certain test fixed value, starting a motor 1-8, timing, turning off the motor 1-8 after 6 hours, rotationally dismounting a bolt for connecting a first arc-shaped sheet 5-3 and an arc-shaped limiting sheet 5-1, clockwise rotating the test box 4 by 90 degrees in cooperation with the limiting frame 6, abutting the second arc-shaped sheet 5-4 against the arc-shaped limiting sheet 5-1, fixedly connecting the second arc-shaped sheet 5-4 and the arc-shaped limiting sheet 5-1 through a through hole by using the bolt, starting the motor 1-8 again, turning off the motor for 1-8 hours again, rotationally dismounting the bolt for connecting the second arc-shaped sheet 5-4 and the arc-shaped limiting sheet 5-1, rotate test box 4 clockwise 90, first arc piece 5-3 leans on with spacing piece 5-1 counterbalance of arc this moment, and pass through the through-hole with the bolt with first arc piece 5-3 and spacing piece 5-1 fixed connection of arc, repeat above-mentioned operation, rotate 4 times altogether, rotate 90 clockwise at every turn, accomplish an experiment operation promptly, the time setting is 6 hours simultaneously, can be according to concrete experimental demand, adjust time length, rotate test box 4, can make simultaneously again through connecting member 5 ground heat box 2 and test box 4 along with vibrating device 1 steady vibration.

Detailed description of the invention

Referring to fig. 1, 2, 13 and 16, this embodiment is based on the second embodiment, and is different in that a groove is formed at the lower end of a parallel sidewall of the bottomless box 4-1, and the gas inlet end of the sampling device 7 is disposed through the sidewall of the bottomless box 4-1 and then inside the bottomless box 4-1;

the inner side wall of the first arc-shaped sheet 5-3 is provided with a T-shaped sliding groove 5-3-1, the side wall of the second arc-shaped sheet 5-4 is provided with a T-shaped sliding strip 5-4-1, the T-shaped sliding strips 5-4-1 are symmetrically arranged in parallel and slidably arranged in the T-shaped sliding groove 5-3-1, the arc-shaped limiting sheet 5-1 is symmetrically provided with through holes, the first arc-shaped sheet 5-3 and the second arc-shaped sheet 5-4 are provided with through holes corresponding to the arc-shaped limiting sheet 5-1, the arc-shaped limiting sheet 5-1 and the first arc-shaped sheet 5-3 are connected through bolts penetrating through the through holes, the front end of the second arc-shaped sheet 5-4 is provided with a barrier strip 5-4-2, the barrier strip 5-4-2 is arranged in a groove at the lower end of the bottomless box body 4-1, and the first arc-shaped sheet 5-3 and the second arc-4 abutting against the side wall of the bottomless box body 4-1 are enclosed into a circle The radius of the circle is the same as the inner diameter of the arc limiting strip 5-2;

inserting two spliced ground plates into a bottomless box body 4-1, a first area 4-2 and a fourth area 4-5 along a groove formed at the lower end of a parallel side wall of the bottomless box body 4-1, inserting two spliced small floor plates into a second area 4-3 and a third area 4-4 along a groove formed at the lower end of a parallel side wall of the bottomless box body 4-1, inserting a T-shaped sliding strip 5-4-1 of a side wall of a second arc-shaped plate 5-4 into a T-shaped sliding groove 5-3-1 on a first arc-shaped plate 5-3, embedding a barrier strip 5-4-2 into the groove formed at the lower end of the side wall of the bottomless box body 4-1 and abutting against the side wall of the spliced floor plates, and penetrating bolts through an upper side wall of the T-shaped sliding groove 5-3-1 and the T-shaped sliding strip 5-4-1 to realize the alignment of the first arc-shaped plate 5-3 and the second arc-shaped plate 5-3 4, the radius of the circle is the same as the inner diameter of the arc limiting strip 5-2, so that the first arc piece 5-3 and the second arc piece 5-4 can freely and stably rotate between the arc limiting strips 5-2 arranged on the upper end surfaces of the arc limiting strips 5-1, and the heating condition of each area is completely the same by rotating for 4 times and rotating for 90 degrees each time;

detailed description of the invention

Referring to fig. 1, 2 and 22, this embodiment is based on the first embodiment, and is different in that the sampling device 7 includes a sampling tube 7-1, a sampling cylinder 7-2, a stopper 7-3, a return spring 7-4, a plugging sheet 7-5, a stopper 7-6 and a sampling cylinder 7-7; the side wall of the sampling tube 7-1 is provided with an air inlet hole, the outer wall of the sampling cylinder 7-2 is provided with an external thread, one end of the side wall of the sampling cylinder 7-2 is connected with the sampling tube 7-1, the inner wall of the sampling cylinder 7-2 is provided with a limiting rod 7-3 and a return spring 7-4, one end of the return spring 7-4 is connected with the limiting rod 7-3, the other end of the return spring is connected with a plugging sheet 7-5, the plugging sheet 7-5 is abutted against the side wall of the sampling cylinder 7-2, one end of a rod piece is connected with the limiting sheet 7-6, the other end of the rod piece passes through the limiting rod 7-3 and the return spring 7-4 to be connected with the plugging sheet 7-5, and the front end of the sampling tube 7-7 is connected with the sampling tube 7-1 through a thread;

taking 16 sampling cylinders 7-7, averagely dividing the sampling cylinders into four groups, arranging sampling devices 7 on the side walls of every four sampling cylinders 7-7 corresponding to the first area 4-2, the second area 4-3, the third area 4-4 and the fourth area 4-5, aligning the front ends of the sampling cylinders 7-7 with the external threads of the sampling cylinder 7-2 to rotate, pulling the pull rods of the sampling cylinders after tight connection, due to the action of atmospheric pressure, the plugging sheet 7-5 is separated from the side wall of the sampling cylinder 7-2, the gas in the first area 4-2, the second area 4-3, the third area 4-4 and the fourth area 4-5 enters the corresponding sampling cylinder 7-7, after sampling is finished, the front end of the sampling cylinder 7-7 is plugged by a rubber plug, label recording is carried out, and detection is carried out after a test;

in each test, 16 sampling cylinders 7-7 are averagely divided into four groups, and the operation is repeated.

Detailed description of the invention

The present embodiment discloses an operation method of a test chamber for simulating geothermal heat, which is applied to a test chamber for simulating geothermal heat in embodiments one to six, and includes the following steps:

fixing a vibrating device 1 provided with a geothermal tank 2 on a horizontal ground;

secondly, manufacturing large and small floor blocks according to the ground size of the actual indoor space and the simulated bottom surface sizes of the first area 4-2, the second area 4-3, the third area 4-4 and the fourth area 4-5, inlaying and splicing the large floor block into two parts according to the bottom surface sizes in the first area 4-2 and the fourth area 4-5, and inlaying and splicing the small floor blocks into two parts according to the bottom surface sizes in the second area 4-3 and the third area 4-4;

pulling out the sliding frame 2-2, placing the heat transfer layer 2-3 and the heating plate 2-4 in the sliding frame 2-2, respectively enabling a water inlet end and a water outlet end of a water pipe of the heating plate 2-4 to penetrate through a circular through hole and a strip-shaped through hole of the sealing plate 2-6 corresponding to the sliding frame 2-2, connecting the water inlet end and the water outlet end with a circulating pump and a heating water tank through water pipes, pushing the sliding frame 2-2 into symmetrical sliding grooves, and fixing the sealing plate 2-6 on parallel side walls of the geothermal box body 2-1 of the geothermal box body through bolts;

fourthly, placing the bottomless box body 4-1 at the upper end of the geothermal box body 2-1, enabling the upper end face of the arc-shaped limiting sheet 5-1 to be abutted against the lower end face of the first arc-shaped sheet 5-3, enabling the outer side wall of the arc-shaped limiting sheet 5-1 to be abutted against the inner side wall box of the first arc-shaped sheet 5-2, enabling a bolt to penetrate through holes in the arc-shaped limiting sheet 5-1 and the first arc-shaped sheet 5-3, fixing the arc-shaped limiting sheet 5-1 and the first arc-shaped sheet 5-3, inserting the two spliced large floor blocks into the bottomless box body 4-1, the first area 4-2 and the fourth area 4-5 along a groove formed at the lower end of a parallel side wall of the bottomless box body 4-1, and inserting the two spliced small floor blocks into the second area 4-3 along a groove formed at the lower end of a parallel side wall of the bottomless box body 4-1, In the third area 4-4, the T-shaped sliding strip 5-4-1 on the side wall of the second arc-shaped sheet 5-4 is inserted into the T-shaped sliding groove 5-3-1 on the first arc-shaped sheet 5-3, so that the barrier strip 5-4-2 is embedded into a groove formed in the lower end of the side wall of the bottomless box body 4-1 and abuts against the side wall of the spliced floor block, and then a bolt penetrates through the upper side wall of the T-shaped sliding groove 5-3-1 and the T-shaped sliding strip 5-4-1 to fixedly connect the first arc-shaped sheet 5-3 and the second arc-shaped sheet 5-4;

step five, the upper end of a limiting frame 6 is sleeved on a bottomless box body 4-1, the supporting end of the limiting frame 6 is fixed on the horizontal ground, a movable limiting device 4-6 is adjusted to ensure that the distance between the limiting frame 4-6-11 of the movable limiting device 4-6 and a fixed limiting device 4-7 and a cover plate 4-8 is the same, the two movable limiting devices 4-6 are correspondingly inserted into a first area 4-2 and a second area 4-3, the two fixed limiting devices 4-7 are correspondingly inserted into a third area 4-4 and a fourth area 4-5, the limiting frames 4-6-11 are abutted against the upper end face of a floor block, the cover plate 4-8 is fixed at the upper end of the bottomless box body 4-1 through the locking piece, so that the bottomless box body 4-1 is sealed;

sixthly, starting the motors 1-8, driving the first wafer 1-2, the second wafer 1-3, the pin rods 1-4 and the roll shafts 1-1 to rotate by the output ends of the motors 1-8, driving the triangular rollers 1-6 to rotate by the pin rods 1-4 through the transmission rods 1-7, enabling the two triangular rollers 1-6 to synchronously rotate by the two pin rods 1-4 arranged at two ends of the second wafer 1-3 and being centrosymmetric about the centroid of the second wafer 1-3 and through the transmission rods 1-7 arranged with equal length, ensuring that the lower end face of the geothermal box 2 is always kept horizontal under the action of the two triangular rollers 1-6 rotating synchronously, realizing reciprocating vibration under the action of the vibration filtering spring 3, enabling the embedded floor blocks to vibrate up and down in a reciprocating manner by vibration, and enabling the edges of the well spliced floor blocks to be limited by the limiting frames 4-6-11, the spliced floor blocks can generate tension, the tension can enable the floor blocks to generate extremely tiny deformation, the deformation caused by the tension generated by the floor blocks when people walk on the floor is simulated by controlling the rotating frequency of the motors 1-8, the air flowing speed is accelerated, the air flowing on the surface of the real indoor floor is simulated, and meanwhile, harmful substances generated by floor volatilization are accelerated to enter the bottomless box body 4-1;

step seven, turning off the motors 1-8, adjusting the spacing frames 4-6-11 to be separated from the floor blocks by adjusting the two movable spacing devices 4-6, adjusting the distance between the spacing frames 4-6-11 and the upper end surfaces of the floor blocks according to the test, then testing at the starting motors 1-8, adjusting the distance between the spacing frames 4-6-11 and the upper ends of the floor blocks by repeatedly controlling the turning off and the starting of the motors 1-8 for multiple times to obtain multiple test results for analysis and research, wherein the large floor blocks and the small floor blocks which are identically inlaid and spliced need to be replaced again in each test and are inserted into corresponding areas of the bottomless box body 4-1;

step eight, turning off the motors 1-8, rotating bolts on the sealing plates 2-6, detaching the sealing plates 2-6 from the geothermal box body 2-1, pulling open the sliding frames 2-2 to replace the heat transfer layers 2-3 with different water contents produced in advance, or replacing the heating plates 2-4 with different heat supply pipeline laying modes, pushing the sliding frames 2-2 into the symmetrical sliding grooves, fixing the sealing plates 2-6 on the geothermal box body 2-1 by the bolts to realize sealing, starting the motors 1-8 to carry out a test, replacing the heat transfer layers 2-3 with different water contents, or replacing the heating plates 2-4 with different heat supply pipeline laying modes by repeatedly controlling the closing and starting of the motors 1-8 for a plurality of times to obtain a plurality of test results, and analyzing and researching parameters influencing the test, the large and small floor blocks which are the same in mosaic splicing need to be replaced by two parts each in each test, and the two parts are inserted into the corresponding areas of the bottomless box body 4-1.

Detailed description of the invention

The method for detecting the gas inside the test chamber disclosed by the embodiment is applied to the first to sixth embodiments and comprises the following steps of:

step one, a vibration device 1 is placed on a horizontal ground, the vibration device 1, a geothermal tank 2, a seismic filtering spring 3, a test box 4, a connecting member 5 and a limiting frame 6 are assembled and connected, large and small floor blocks for tests which are reduced in equal proportion are laid in a first area 4-2, a second area 4-3, a third area 4-4 and a fourth area 4-5, a limiting frame 4-6-11 is abutted against the upper end face of the floor block, and a heat transfer layer 2-3 with the water content of a and a heating plate 2-4 with heating pipes annularly laid are correspondingly arranged in a sliding frame 2-2;

step two, adjusting the distance between a limiting frame 4-6-11 in a first area 4-2 and a second area 4-3 and the upper end surface of the floor block to be a certain test fixed value, starting a motor 1-8, timing, turning off the motor 1-8 after 6 hours, rotationally dismounting a bolt for connecting a first arc-shaped sheet 5-3 and an arc-shaped limiting sheet 5-1, clockwise rotating the test box 4 by 90 degrees by matching with the limiting frame 6, at the moment, abutting the second arc-shaped sheet 5-4 against the arc-shaped limiting sheet 5-1, fixedly connecting the second arc-shaped sheet 5-4 and the arc-shaped limiting sheet 5-1 by penetrating the bolt through a through hole, starting the motor 1-8 again, turning off the motor 1-8 again after 6 hours, rotationally dismounting the bolt for connecting the second arc-shaped sheet 5-4 and the arc-shaped limiting sheet 5-1, rotating the test box 4 clockwise by 90 degrees, wherein the first arc-shaped piece 5-3 abuts against the arc-shaped limiting piece 5-1, the first arc-shaped piece 5-3 is fixedly connected with the arc-shaped limiting piece 5-1 by penetrating a bolt through a through hole, repeating the operation, rotating for 4 times, and rotating clockwise by 90 degrees every time to complete one experiment operation;

step three, after the operation is finished, turning off the motor 1-8, evenly dividing 16 sampling cylinders 7-7 into four groups, connecting four sampling cylinders 7-7 arranged on the side wall of one area correspondingly every four sampling cylinders 7-7, aligning the front ends of the sampling cylinders 7-7 with the external threads of the sampling cylinders 7-2 for rotation, pulling the pull rods of the sampling cylinders 7-7 after tight connection, separating the plugging sheets 7-5 from the side walls of the sampling cylinders 7-2 due to the action of atmospheric pressure, pumping the gas in the first area 4-2, the second area 4-3, the third area 4-4 and the fourth area 4-5 into the corresponding sampling cylinders 7-7, plugging the front ends of the sampling cylinders 7-7 by using rubber plugs after sampling is finished, and recording the labels of the sampling cylinders 7-7, completing one-time sampling after the test is detected;

step four, replacing the heat transfer layer 2-3 with the water content of b in the sliding frame 2-2, not replacing the heating plate 2-4 with the heating pipe annularly paved, and repeating the operation of the step two and the operation of the step three;

replacing the heat transfer layer 2-3 with the water content of a in the sliding frame 2-2 and the heating plate 2-4 with the heating pipe laid in an arched shape, and repeating the operation of the second step and the third step;

step six, replacing the heat transfer layer 2-3 with the water content of b in the sliding frame 2-2, not replacing the heating plate 2-4 with the heating pipe laid in the shape of an arch, and repeating the operation of the step two and the operation of the step three;

step seven, gas component detection is carried out, the labels in the step three are a second area 4-3, a third area 4-4, or a first area 4-2 and a fourth area 4-5, a sampling cylinder 7-7 for sampling a sampling cylinder 7-2 with the same height is taken out, gas in the sampling cylinder 7-7 after sampling is tested and analyzed, the water content of the heat transfer layer 2-3 is analyzed to be the same, the heating condition is analyzed to be the same, the sampling height is the same, the influence of the distance between the limiting frames 4-6-11 and the floor volatility is compared, the water content of the heat transfer layer 2-3 is analyzed to be the same, the laying mode of the heating pipes is the same by comparing the first area 4-2, the second area 4-3, the third area 4-4 and the fourth area 4-5, the distances from the limiting frames 4-6-11 to the floor blocks are the same, the influence of the size of the floor blocks on the volatilization speed of the floor can be obtained by comparing and analyzing the data obtained in the fourth step, the fifth step and the sixth step, the data is compared with the data obtained in the third step, and the rule is observed;

step eight, gas component detection is carried out, the third step and the fourth step are subjected to comparative analysis, gas in a sampling cylinder 7-7 sampled by a sampling cylinder 7-2 with the same height and the same area is subjected to test detection, comparative analysis is carried out, the laying mode of a heating pipe is analyzed to be the same, the distance between a limiting frame 4-6-11 and a floor block is the same, the influence of the water content of a heat transfer layer 2-3 on the volatility of the floor is analyzed to be the same, then, the fifth step and the sixth step can be subjected to comparative analysis to obtain data, the data are compared with the data obtained in the third step and the fourth step, and the rule is observed;

step nine, gas component detection is carried out, the step three and the step five are compared and analyzed, a detection test is carried out on gas of a sampling cylinder 7-7 sampled by a sampling cylinder 7-2 with the same height and the same area, the comparison and analysis are carried out, the water content of a heat transfer layer 2-3 is analyzed to be the same, the distance between a limiting frame 4-6-11 and a floor block is analyzed to be the same, the influence of the laying mode of a heating pipe on the volatilization speed of the floor is analyzed, then the step four and the step six are compared and analyzed to obtain data, the data are compared with the data obtained in the step three and the step five, and the rule is observed;

step ten, detecting gas components, adopting a variable control method, controlling other variables to be the same, detecting and analyzing gas in the sampling cylinders 7-7 for sampling the sampling cylinders 7-2 with different heights in the same area, researching the change condition of harmful gas distribution generated by floor volatility in the test box 4 along with the height, simultaneously drawing a curve, and analyzing whether the distribution of the harmful gas is uniformly and continuously distributed or has a sudden change value, namely, whether the harmful gas is uniformly dispersed or mainly concentrated at a certain height from the floor block.

Detailed description of the invention

Referring to fig. 17, 18, 19 and 21, the limiting device for the test chamber simulating geothermal heat disclosed in the present embodiment is characterized by comprising a movable limiting device 4-6 and a fixed limiting device 4-7; the first area 4-2 and the second area 4-3 are internally provided with movable limiting devices 4-6 capable of adjusting limiting displacement, the third area 4-4 and the fourth area 4-5 are internally provided with fixed limiting devices 4-7 incapable of adjusting limiting displacement, the lower ends of the movable limiting devices 4-6 and the fixed limiting devices 4-7 are abutted against floor blocks, and the other ends of the movable limiting devices 4-6 and the fixed limiting devices 4-7 are arranged on a cover plate 4-8 of the bottomless box body 4-1;

the movable limiting device 4-6 comprises a driving rotating shaft 4-6-1, a manual rotating disc 4-6-2, a first gear 4-6-3, a ratchet 4-6-4, a driven rotating shaft 4-6-5, a second gear 4-6-6, a threaded bearing 4-6-7, a vernier 4-6-8, a main scale 4-6-9, a sleeve 4-6-10, a limiting frame 4-6-11 and a limiting component 4-6-12; one end of a driving rotating shaft 4-6-1 is rotatably arranged on the inner side wall of a transmission case 4-9, the other end of the driving rotating shaft 4-6-1 penetrates through a bearing in a cover plate 4-8 and is connected with a manual rotating disc 4-6-2, a first gear 4-6-3 and a ratchet 4-6-4 are arranged on the driving rotating shaft 4-6-1 in the transmission case 4-9, the ratchet 4-6-4 is positioned at the lower end of the first gear 4-6-3, a driven rotating shaft 4-6-5 is rotatably arranged through the bearing on the cover plate 4-8 and the bearing on the transmission case 4-9, a second gear 4-6-6 is arranged on the driven rotating shaft 4-6-5 in the transmission case 4-9, the first gear 4-6-3 is meshed with the second gear 4-6-6, the upper end of the driven rotating shaft 4-6-5 is provided with a threaded bearing 4-6-7, the outer wall of the threaded bearing 4-6-7 is provided with a vernier scale 4-6-8, the 0-scribed line section of the main scale 4-6-9 passes through the vernier scale and is arranged on the upper end face of the cover plate 4-8, the lower end of the driven rotating shaft 4-6-5 is provided with a sleeve 4-6-10, the inner walls of the threaded bearing 4-6-7 and the sleeve 4-6-10 are provided with internal threads, the two ends of the driven rotating shaft 4-6-5 are provided with external threads, the external threads of the driven rotating shaft 4-6-5 are matched with the internal threads of the threaded bearing 4-6-7 and the sleeve 4-6-10, the sleeve 4-6-10 at the lower end of the driven rotating shaft 4-6-5 is connected with a limiting frame 4-6-11 through a rod piece, the side wall of the transmission case 4-9 is provided with a limiting component 4-6-12, and the limiting component 4-6-12 is matched with the ratchet wheel 4-6-4 in the direction.

The limiting component 4-6-12 comprises an L-shaped rod 4-6-13, a fixing block 4-6-14, an electromagnet 4-6-17, an iron block 4-6-18, a limiting column 4-6-19, a connecting rod 4-6-20, a pressure spring 4-6-21, a baffle 4-6-22 and a limiting block 4-6-23; the L-shaped rod 4-6-13 and the fixed block 4-6-14 are arranged on the side wall of the transmission case 4-9, the fixed block 4-6-14 is provided with a first groove 4-6-15 and a second groove 4-6-16, the upper end of the second groove 4-6-16 is provided with a through hole, the other end of the L-shaped rod 4-6-13 is provided with an electromagnet 4-6-17, an iron block 4-6-18 is arranged right below the electromagnet 4-6-17, the lower end of the iron block 4-6-18 is provided with a limiting column 4-6-19 and a connecting rod 4-6-20, the limiting column 4-6-19 and the connecting rod 4-6-20 are respectively arranged in the first groove 4-6-15 and the through hole in a sliding manner, the other end of the connecting rod 4-6-20 passes through a pressure spring 4-6-21 and a baffle 4-6-22 in the second groove 4-6-16 to be connected with a limiting block 4-6-23, the limiting block 4-6-23 is matched with the ratchet 4-6-4, and two ends of the pressure spring 4-6-21 are respectively connected with the upper wall of the second groove 4-6-16 and the baffle 4-6-22;

the two limiting components 4-6-12 are electrified, the limiting components 4-6-12 attract the iron blocks 4-6-18, the iron blocks 4-6-18 drive the limiting blocks 4-6-23 to move upwards through the connecting rods 4-6-20, further the limiting effect of the limiting blocks 4-6-23 on the ratchet wheel 4-6-4 is relieved, the manual rotating disc 4-6-2 is rotated clockwise, the manual rotating disc 4-6-2 drives the first gear 4-6-3 to rotate through the driving rotating shaft 4-6-1, the first gear 4-6-3 drives the driven rotating shaft 4-6-5 to rotate anticlockwise through the meshing effect with the second gear 4-6-6, and as the two ends of the driven rotating shaft 4-6-5 are provided with the same threads, the external thread of the driven rotating shaft 4-6-5 is matched with the internal thread of the threaded bearing 4-6-7 and the sleeve 4-6-10, so that the threaded bearing 4-6-7 and the sleeve 4-6-10 move downwards, the downward movement distances are the same because the threads are the same until the lower end of the threaded bearing 4-6-7 is abutted against the upper end face of the cover plate 4-8, the sleeve 4-6-10 moves downwards to enable the distance between the movable limiting device 4-6 and the limiting frame 4-6-11 of the fixed limiting device 4-7 and the cover plate 4-8 to be the same, and the power supply of the two limiting members 4-6-12 is disconnected;

adjusting the distance between the limiting frames 4-6-11 in the first area 4-2 and the second area 4-3 and the upper end face of the floor according to test requirements, namely, keeping a gap between the limiting frames 4-6-11 in the first area 4-2 and the second area 4-3, when the distance between the limiting frames 4-6-11 in the first area 4-2 and the second area 4-3 and the upper end face of the floor is required to be adjusted to be a fixed value amm (a is less than 10), rotating the manual rotating disc 4-6-2 counterclockwise, driving the first gear 4-6-3 to rotate through the driving rotating shaft 4-6-1, at the moment, limiting action of the limiting blocks 4-6-23 on the ratchet wheels 4-6-4 can be achieved through rotating the manual rotating disc 4-6-2 counterclockwise, and the first gear 4-6-3 is driven to drive through meshing action with the second gear 4-6-6 The rotating shaft 4-6-5 rotates clockwise, the same threads are arranged at the two ends of the driven rotating shaft 4-6-5, the external threads of the driven rotating shaft 4-6-5 are matched with the internal threads of the threaded bearing 4-6-7 and the sleeve 4-6-10, so that the threaded bearing 4-6-7 and the sleeve 4-6-10 move upwards, the downward moving distances are the same due to the same threads, and the vernier scale 4-6-8 is adjusted to move upwards amm along the main scale 4-6-9;

the method for measuring the distance from the limiting frame 4-6-11 to the upper end surface of the floor comprises the following steps: placing a pre-made measuring block with the height of amm on the upper end face of a cover plate 4-8 and abutting against a scale part of a vernier scale 4-6-8, and rotating a manual rotating disc 4-6-2 anticlockwise to enable a threaded bearing 4-6-7 to drive the vernier scale 4-6-8 to move upwards and slowly until a 0 scale mark of the vernier scale 4-6-8 is coincided with the upper end face of a side top block, so that distance adjustment is completed, wherein the measuring block can be a cylinder, a cube or a cuboid measuring block, and can quickly and accurately adjust a required distance value;

the limiting components 4-6-12 adopt a mechanical structure, and in order to adopt an electronic structure to consider the damage of vibration to electronic equipment, meanwhile, the distance between the limiting frame 4-6-11 and the upper end surface of the floor block caused by the shake of the driven rotating shaft 4-6-5 generated in the vibration is overcome, the limiting component 4-6-12 is provided, namely, in the vibration process, the first gear 4-6-3 limits the rotation of the driven rotating shaft 4-6-5 through the meshing action with the second gear 4-6-6, so that the threaded bearing 4-6-7 and the sleeve 4-6-10 cannot rotate relative to the driven rotating shaft 4-6-5, the distance between the limiting frame 4-6-11 and the floor block is ensured to be unchanged, the precision is strictly controlled, and the data are more accurate and effective.

Detailed description of the preferred embodiment

Referring to fig. 2, 3, 4 and 20, this embodiment is based on the ninth embodiment, and is different in that the fixing and limiting device 4-7 includes a fixing rod 4-7-1 and a limiting frame 4-6-11; one end of the fixed rod 4-7-1 is arranged on the lower end face of the cover plate 4-8, and the other end of the fixed rod is connected with the limiting frame 4-6-11 through symmetrically arranged rod pieces;

the limiting frames 4-6-11 of the fixed limiting devices 4-7 and the limiting frames 4-6-11 of the lowest points where the movable limiting devices 4-6 are located are at the same horizontal height.

Detailed description of the invention

Referring to fig. 2, 3, 4 and 20, this embodiment is based on the ninth embodiment, and is different in that the vernier 4-6-8 and the main scale 4-6-9 are both provided with scale portions;

the manual rotating disc 4-6-2 is provided with a mark, and a scale part is arranged around the manual rotating disc 4-6-2 on the upper end surface of the cover plate 4-8;

the method for measuring the distance from the limiting frame 4-6-11 to the upper end surface of the floor comprises the following steps: the vernier scale 4-6-8 and the main scale 4-6-9 are observed by rotating the manual rotating disc 4-6-2 anticlockwise for a circle, a specific ascending distance is read out and recorded as bmm by the vernier scale 4-6-8 and the main scale 4-6-9, a mark is arranged on the manual rotating disc 4-6-2, a scale part is arranged around the manual rotating disc 4-6-2 on the upper end face of the cover plate 4-8, the mark of the manual rotating disc 4-6-2 rotates for 40 scales, and the ascending distance corresponding to each scale is

To adjust the elevation amm of the vernier 4-6-8, the scale for the rotation of the markings of the manual dial 4-6-2 is:

i.e. rotate

The scale is not required to be produced and measured in advance, the required distance can be adjusted by simple calculation, wherein the scale part is arranged around the manual rotating disc 4-6-2 on the upper end surface of the cover plate 4-8The scale can adopt corresponding scales according to the precision requirement, namely dividing the circumference into n parts, and setting the value of n according to the precision (the n is a positive integer larger than 1);

detailed description of the invention

The adjusting method of the limiting device for the test chamber for simulating the geothermal heat disclosed in the embodiment acts on the limiting device for the test chamber for simulating the geothermal heat disclosed in the ninth, tenth and eleventh embodiments, and comprises the following steps:

step one, electrifying two limiting components 4-6-12, attracting the iron block 4-6-18 by the limiting components 4-6-12, driving the limiting block 4-6-23 to move upwards by the iron block 4-6-18 through a connecting rod 4-6-20, further removing the limiting effect of the limiting block 4-6-23 on the ratchet wheel 4-6-4, clockwise rotating the manual rotating disc 4-6-2, driving the first gear 4-6-3 to rotate through the driving rotating shaft 4-6-1 by the manual rotating disc 4-6-2, driving the driven rotating shaft 4-6-5 to rotate anticlockwise through the meshing effect with the second gear 4-6-6 by the first gear 4-6-3, and as the two ends of the driven rotating shaft 4-6-5 are provided with the same screw thread, the external thread of the driven rotating shaft 4-6-5 is matched with the internal thread of the threaded bearing 4-6-7 and the sleeve 4-6-10, so that the threaded bearing 4-6-7 and the sleeve 4-6-10 move downwards, the downward movement distances are the same because the threads are the same, until the lower end of the threaded bearing 4-6-7 is abutted against the upper end face of the cover plate 4-8, namely, in the 0 adjusting stage, the sleeve 4-6-10 moves downwards so that the distances from the movable limiting device 4-6 and a limiting frame 4-6-11 of the fixed limiting device 4-7 to the cover plate 4-8 are the same, and the power supplies of the two limiting members 4-6-12 are disconnected;

correspondingly inserting two movable limiting devices 4-6 into a first area 4-2 and a second area 4-3, correspondingly inserting two fixed limiting devices 4-7 into a third area 4-4 and a fourth area 4-5, enabling limiting frames 4-6-11 to abut against the upper end faces of floor blocks, and fixing a cover plate 4-8 at the upper end of a bottomless box body 4-1 through a locking piece to realize sealing of the bottomless box body 4-1;

step three, adjusting the distance between the limiting frames 4-6-11 in the first area 4-2 and the second area 4-3 and the upper end face of the floor according to test requirements, namely, reserving gaps, when the distance between the limiting frames 4-6-11 in the first area 4-2 and the second area 4-3 and the upper end face of the floor block needs to be adjusted to be a fixed value of amm, rotating the manual rotating disc 4-6-2 anticlockwise, driving the first gear 4-6-3 to rotate through the driving rotating shaft 4-6-1, at the moment, limiting effects of the limiting blocks 4-6-23 on the ratchet wheel 4-6-4 can be overcome through rotating the manual rotating disc 4-6-2 anticlockwise, and driving the driven rotating shaft 4-6-5 to clockwise through the meshing effect of the first gear 4-6-3 and the second gear 4-6-6 The needle rotates, the same threads are arranged at the two ends of the driven rotating shaft 4-6-5, the external threads of the driven rotating shaft 4-6-5 are matched with the internal threads of the threaded bearing 4-6-7 and the sleeve 4-6-10, so that the threaded bearing 4-6-7 and the sleeve 4-6-10 move upwards, the downward moving distances are the same due to the same threads, the vernier scale 4-6-8 is adjusted to move upwards amm along the main scale 4-6-9, and the adjustment of the distance between the limiting frame 4-6-11 and the upper end face of the floor block to be amm can be completed;

the method comprises the following steps: placing a pre-made measuring block with the height of amm on the upper end face of a cover plate 4-8 and abutting against a scale part of a vernier scale 4-6-8, and rotating a manual rotating disc 4-6-2 anticlockwise to enable a threaded bearing 4-6-7 to drive the vernier scale 4-6-8 to move upwards slowly until a 0 scale mark of the vernier scale 4-6-8 is coincided with the upper end face of a side top block, so that distance adjustment is completed, wherein the measuring block can be a cylinder, a cube or a cuboid measuring block;

the second method comprises the following steps: the vernier scale 4-6-8 and the main scale 4-6-9 are observed by rotating the manual rotating disc 4-6-2 anticlockwise for a circle, a specific ascending distance is read out and recorded as bmm by the vernier scale 4-6-8 and the main scale 4-6-9, a mark is arranged on the manual rotating disc 4-6-2, a scale part is arranged around the manual rotating disc 4-6-2 on the upper end face of the cover plate 4-8, the mark of the manual rotating disc 4-6-2 rotates for 40 scales, and the ascending distance corresponding to each scale is

To adjust the elevation amm of the vernier 4-6-8, the scale for the rotation of the markings of the manual dial 4-6-2 is:

i.e. rotate

Each scale is divided into a plurality of scales;

fourthly, starting the motor 1-8, driving the first wafer 1-2, the second wafer 1-3, the pin rod 1-4 and the roller shaft 1-1 to rotate by the output end of the motor 1-8, driving the triangular roller 1-6 to rotate by the pin rod 1-4 through the transmission rod 1-7, arranging the two pin rods 1-4 at the two ends of the second wafer 1-3, forming central symmetry about the centroid of the second wafer 1-3, connecting the two triangular rollers 1-6 through the transmission rods 1-7 with equal length, enabling the two triangular rollers 1-6 to synchronously rotate, ensuring that the lower end face of the geothermal tank 2 is always kept horizontal in the vibration process under the action of the two triangular rollers 1-6 which synchronously rotate, and realizing reciprocating vibration under the action of the vibration filtering spring 3, the vibration makes the embedded floor block vibrate up and down in a reciprocating way, under the action of triangular rollers 1-6 and a vibration filtering spring 3, the up and down processes are speed change processes, according to Newton's second law, the motion state of an object is changed under the action of external force, the edge of the well-spliced floor block pulls the floor block connected with the floor block to do variable speed motion under the limit action of a limit frame 4-6-11, so that the spliced floor block generates tension action, the floor block generates tiny deformation under the tension action, the deformation caused by the tension generated by the walking of a person on the floor block is simulated by controlling the rotation frequency of a motor 1-8, the air flow speed is accelerated, the problem that no air flows under the sealing condition is overcome, the air flow on the surface of a real indoor floor is fully simulated, and harmful substances generated by the volatilization of the floor are accelerated to enter a bottomless box body 4-1, due to the limiting effect of the limiting blocks 4-6-23 on the ratchet wheels 4-6-4, in the vibration process, the first gear 4-6-3 limits the rotation of the driven rotating shaft 4-6-5 through the meshing effect with the second gear 4-6-6, so that the threaded bearing 4-6-7 and the sleeve 4-6-10 cannot rotate relative to the driven rotating shaft 4-6-5, and the distance between the limiting frame 4-6-11 and the floor block is ensured to be unchanged;

step five, turning off the motor 1-8, adjusting the distance between the limiting frame 4-6-11 and the upper end face of the floor block by adjusting the two movable limiting devices 4-6 in the first area 4-2 and the second area 4-3 according to the test, then turning on the motor 1-8 for testing, correspondingly adjusting the distance between the limiting frame 4-6-11 and the upper end face of the floor block by repeatedly controlling the turning off and the turning on of the motor 1-8 for multiple times to obtain multiple test results, drawing the relationship between the volatile harmful substances of the floor block in the first area 4-2 and the second area 4-3 and the distance between the limiting frame 4-6-11 and the upper end face of the floor block into a continuous curve, and comparing and analyzing the two curves.

Claims (1)

1. A method for detecting gas in a test box is based on a test box for simulating terrestrial heat and comprises a vibration device (1), a terrestrial heat box (2), a vibration filtering spring (3), a test box (4), a connecting member (5), a limiting frame (6) and a sampling device (7); the device is characterized in that a geothermal tank (2) is arranged at the upper end of the vibrating device (1), the geothermal tank (2) is connected with the vibrating device (1) through a filtering vibration spring (3), a test box (4) is arranged at the upper end of the geothermal tank (2), the test box (4) is connected with the geothermal tank (2) through a connecting member (5), the test box (4) is movably arranged in a limiting frame (6), and a plurality of sampling devices (7) are arranged on the side wall of the test box (4); the test box (4) comprises a bottomless box body (4-1), a first area (4-2), a second area (4-3), a third area (4-4), a fourth area (4-5), a movable limiting device (4-6), a fixed limiting device (4-7) and a cover plate (4-8); the bottom of the bottomless box body (4-1) is arranged at the upper end of the geothermal box (2) through a connecting component, the bottomless box body (4-1) can rotate relative to the geothermal box (2) through the connecting component (5), the bottomless box body (4-1) is divided into four regions through partition plates, the four regions are respectively a first region (4-2), a second region (4-3), a third region (4-4) and a fourth region (4-5), a ground plate is paved at the bottoms of the first region (4-2) and the fourth region (4-5), small floor blocks are paved at the bottoms of the second region (4-3) and the third region (4-4), the lower end faces of the ground plate and the small floor blocks are abutted against the upper end face of the geothermal box (2), and movable limiting devices capable of adjusting limiting displacement are arranged in the first region (4-2) and the second region (4-3) (4-6), a fixed limiting device (4-7) which can not adjust limiting displacement is arranged in the third area (4-4) and the fourth area (4-5), the lower ends of the movable limiting device (4-6) and the fixed limiting device (4-7) are abutted against the floor blocks, the other ends of the movable limiting device and the fixed limiting device are arranged on a cover plate (4-8) of the bottomless box body (4-1), and the vibrating device (1) can drive the floor blocks in the bottomless box body (4-1) to vibrate;

the vibrating device (1) comprises a roll shaft (1-1), a first circular sheet (1-2), a second circular sheet (1-3), a pin rod (1-4), a vibrating box (1-5), a triangular roller (1-6), a transmission rod (1-7), a motor (1-8) and a limiting plate (1-9); the roller shaft (1-1) is characterized in that first wafers (1-2) are symmetrically arranged at two ends of the roller shaft (1-1) in parallel, second wafers (1-3) are arranged between the roller shaft (1-1) and the first wafers (1-2), the second wafers (1-3) are fixedly connected with the roller shaft (1-1) and the first wafers (1-2) through pin rods, the two pin rods (1-4) are arranged at two ends of the second wafers (1-3) and are centrosymmetric with respect to the centroid of the second wafers (1-3), the first wafers (1-2) are rotatably arranged inside the vibration box (1-5) through rotating shafts, the two triangular rollers (1-6) are rotatably arranged on the inner wall of the vibration box (1-5) above the roller shaft (1-1) in parallel, and one ends of the triangular rollers (1-6) are arranged on the roller shaft (1-1) and the second wafers (1-2) through transmission rods (1-7) The device comprises pins (1-4) between sheets (1-3), triangular rollers (1-6) with the other ends arranged on the pins (1-4) of the other second wafer (1-3) and the first wafer (1-2) through transmission rods (1-7), motors (1-8) arranged on the outer walls of vibration boxes (1-5), output ends of the motors (1-8) connected with a rotating shaft, the triangular rollers (1-6) abutting against the geothermal box (2), limiting plates (1-9) symmetrically arranged on the outer side walls of the vibration boxes (1-5) in parallel, and the geothermal box (2) movably arranged between the two limiting plates (1-9);

the geothermal box (2) comprises a geothermal box body (2-1), a sliding frame (2-2), a heat transfer layer (2-3), a heating disc (2-4), an adiabatic reflection layer (2-5) and a sealing plate (2-6); the floor heating box is characterized in that two symmetrical sliding grooves are formed in the parallel side walls of the floor heating box body (2-1), sliding frames (2-2) are arranged on the symmetrical sliding grooves in a sliding mode respectively, a heat transfer layer (2-3) is arranged in the sliding frame (2-2) at the upper end, heating plates (2-4) are arranged in the sliding frame (2-2) at the lower end, circular through holes and strip-shaped through holes are formed in the outer side wall of the sliding frame (2-2) at the lower end, a heat insulation reflecting layer (2-5) is laid at the bottom of the inner side wall of the floor heating box body (2-1), the heat transfer layer (2-3) abuts against floor blocks in the bottomless box body (4-1), sealing plates (2-6) are fixed on the parallel side walls of the floor heating box body (2-1) through bolts, and circular through holes and strip-shaped through holes are formed in the sealing plates (2-6), and corresponds to the circular through hole and the strip-shaped through hole box on the outer side wall of the sliding frame (2-2);

the connecting component (5) comprises an arc-shaped limiting sheet (5-1), an arc-shaped limiting strip (5-2), a first arc-shaped sheet (5-3) and a second arc-shaped sheet (5-4); the floor heating box is characterized in that the arc-shaped limiting pieces (5-1) are symmetrically arranged at the upper end of the outer wall of the floor heating box body (2-1), arc-shaped limiting strips (5-2) are arranged at the upper end of the arc-shaped limiting pieces (5-1), the first arc-shaped pieces (5-3) are symmetrically arranged at the lower end of the outer side wall of the bottomless box body (4-1), the second arc-shaped pieces (5-4) which are symmetrically arranged in parallel are arranged between the first arc-shaped pieces (5-3) in a sliding manner, the first arc-shaped pieces (5-3) are connected with the arc-shaped limiting pieces (5-1) through bolts, and the outer wall of the first arc-shaped pieces (5-3) is abutted against the inner wall of the arc-shaped limiting strips (5-2);

the sampling device (7) comprises a sampling tube (7-1), a sampling cylinder (7-2), a limiting rod (7-3), a reset spring (7-4), a plugging sheet (7-5), a limiting sheet (7-6) and a sampling cylinder (7-7); the side wall of the sampling tube (7-1) is provided with an air inlet hole, the outer wall of the sampling cylinder (7-2) is provided with external threads, one end of the side wall of the sampling cylinder (7-2) is connected with the sampling tube (7-1), the inner wall of the sampling cylinder (7-2) is provided with a limiting rod (7-3) and a return spring (7-4), one end of the return spring (7-4) is connected with the limiting rod (7-3), the other end of the return spring is connected with a plugging sheet (7-5), the plugging sheet (7-5) is abutted against the side wall of the sampling cylinder (7-2), one end of a rod piece is connected with the limiting sheet (7-6), the other end of the rod piece penetrates through the limiting rod (7-3) and the return spring (7-4) to be connected with the plugging sheet (7-5), and the front end of the sampling cylinder (7-7) is connected with the sampling tube (7-1) through threads;

every four sampling cylinders (7-7) correspond to the sampling devices (7) arranged on the side walls of the first area (4-2), the second area (4-3), the third area (4-4) and the fourth area (4-5), and the method is characterized by comprising the following steps:

placing a vibrating device (1) on a horizontal ground, assembling and connecting the vibrating device (1), a geothermal tank (2), a vibration filtering spring (3), a test box (4), a connecting member (5) and a limiting frame (6), wherein large floor blocks and small floor blocks for testing which are reduced in equal proportion are paved in a first area (4-2), a second area (4-3), a third area (4-4) and a fourth area (4-5), a limiting frame (4-6-11) is abutted against the upper end face of each floor block, and a heat transfer layer (2-3) with a water content of a and a heating plate (2-4) with a heating pipe annularly paved are correspondingly installed in a sliding frame (2-2);

step two, adjusting the distance between a limiting frame (4-6-11) in a first area (4-2) and a second area (4-3) and the upper end surface of the floor block to be a certain test fixed value, starting a motor (1-8), timing, turning off the motor (1-8) after 6 hours, rotating and dismounting a bolt for connecting a first arc-shaped sheet (5-3) and an arc-shaped limiting sheet (5-1), clockwise rotating the test box 4 by 90 degrees by matching with the limiting frame (6), at the moment, enabling a second arc-shaped sheet (5-4) to abut against the arc-shaped limiting sheet (5-1), fixedly connecting the second arc-shaped sheet (5-4) and the arc-shaped limiting sheet (5-1) by penetrating the bolt through a through hole, starting the motor (1-8), and turning off the motor (1-8) after 6 hours, the bolt for connecting the second arc-shaped piece (5-4) and the arc-shaped limiting piece (5-1) is dismounted in a rotating mode, the test box 4 is rotated 90 degrees clockwise, at the moment, the first arc-shaped piece (5-3) abuts against the arc-shaped limiting piece (5-1), the bolt penetrates through the through hole to fixedly connect the first arc-shaped piece (5-3) and the arc-shaped limiting piece (5-1), the operation is repeated, the operation is carried out for 4 times in total, and the rotation is carried out 90 degrees clockwise each time, so that one experiment operation is completed;

step three, after the operation is finished, the motor (1-8) is turned off, 16 sampling cylinders (7-7) are averagely divided into four groups, every four sampling cylinders (7-7) are correspondingly connected with four sampling cylinders (7-2) arranged on the side wall of one area, the front ends of the sampling cylinders (7-7) are aligned to the external threads of the sampling cylinders (7-2) to rotate, after the sampling cylinders (7-7) are tightly connected, the pull rods of the sampling cylinders (7-7) are pulled, the plugging sheets (7-5) are separated from the side wall of the sampling cylinders (7-2) under the action of atmospheric pressure, the gas in the first area (4-2), the second area (4-3), the third area (4-4) and the fourth area (4-5) is pumped into the corresponding sampling cylinders (7-7), the sampling is finished, the front ends of the sampling cylinders (7-7) are plugged by rubber plugs, the sampling cylinder (7-7) is subjected to label recording, and once sampling is completed after testing and detection;

step four, replacing the heat transfer layer (2-3) with the water content of b in the sliding frame 2-2, not replacing the heating plate (2-4) with the heating pipe annularly paved, and repeating the operation of the step two and the operation of the step three;

replacing the heat transfer layer (2-3) with the water content of a in the sliding frame 2-2 and the heating plate (2-4) with the heating pipe paved in an arched shape, and repeating the operation of the second step and the third step;

step six, replacing the heat transfer layer (2-3) with the water content of b in the sliding frame 2-2, not replacing the heating plate (2-4) with the heating pipe paved in an arched shape, and repeating the operation of the step two and the operation of the step three;

step seven, gas component detection is carried out, the numbers in the step three are the second area (4-3), the third area (4-4) or the first area (4-2) and the fourth area (4-5) are compared, a sampling cylinder (7-7) for sampling the sampling cylinder (7-2) with the same height is taken out, the gas in the sampling cylinder (7-7) after sampling is tested and analyzed, the water content of the heat transfer layer (2-3) is analyzed to be the same, the heating condition is the same, the sampling height is the same, the influence of the distance between the limiting frame (4-6-11) and the floor block on the floor volatility is compared, the first area (4-2), the second area (4-3) or the third area (4-4) and the fourth area (4-5) are compared, analyzing that the water content of the heat transfer layers (2-3) is the same, the laying mode of the heating pipes is the same, the distances from the limiting frames (4-6-11) to the floor blocks are the same, the influence of the size of the floor blocks on the volatility of the floor blocks can be analyzed, then, the fourth step, the fifth step and the sixth step can be compared and analyzed to obtain data, and the data is compared with the data obtained in the third step to observe the rule;

step eight, detecting gas components, carrying out comparative analysis on the third step and the fourth step, carrying out test detection on gas in sampling cylinders (7-7) sampled by sampling cylinders (7-2) with the same height and the same area, carrying out comparative analysis, analyzing that the laying modes of heating pipes are the same, the distances from limiting frames (4-6-11) to floor blocks are the same, and the influence of the water content of a heat transfer layer (2-3) on the volatility of the floor is realized, then carrying out comparative analysis on the fifth step and the sixth step to obtain data, comparing the data with the data obtained in the third step and the fourth step, and observing the rule;

step nine, detecting gas components, carrying out comparative analysis on the step three and the step five, carrying out a detection test on gas of a sampling cylinder (7-7) sampled by a sampling cylinder (7-2) with the same height and the same area, analyzing that the water content of a heat transfer layer (2-3) is the same, the distance between a limiting frame (4-6-11) and a floor block is the same, influencing the floor volatility by a heating pipe laying mode, then carrying out comparative analysis on the step four and the step six to obtain data, comparing the data with the data obtained in the step three and the step five, and observing the rule;

and step ten, detecting gas components, adopting a variable control method, controlling other variables to be the same, detecting and analyzing gas in sampling cylinders (7-7) for sampling cylinders (7-2) with different heights in the same area, researching the change condition of harmful gas distribution generated by floor volatility in a test box (4) along with the height, simultaneously drawing a curve, and analyzing whether the distribution of the harmful gas is uniformly and continuously distributed or whether a sudden change value exists, namely whether the harmful gas is uniformly dispersed or mainly concentrated at a certain height from the floor block.

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