CN109387535B

CN109387535B - Test box for simulating geothermal energy

Info

Publication number: CN109387535B
Application number: CN201811497627.7A
Authority: CN
Inventors: 王志成; 张玥; 张宇; 樊磊; 马宁; 张帆; 陆海玲
Original assignee: Energy and Environment Research Institute of Heilongjiang Province
Current assignee: Energy and Environment Research Institute of Heilongjiang Province
Priority date: 2018-12-07
Filing date: 2018-12-07
Publication date: 2024-02-09
Anticipated expiration: 2038-12-07
Also published as: CN109387535A

Abstract

The invention relates to the technical field of test detection, in particular to a test box for simulating geothermal energy, which comprises a vibrating device, a geothermal box, a shock-absorbing spring, a test box, a connecting member, a limiting frame and a sampling device; the utility model provides a floor heating device, vibrating device, the upper end is provided with the geothermal case, the geothermal case links to each other with vibrating device leads to filtering shake spring, the upper end of geothermal case is provided with the test box, the test box links to each other through connecting elements with the geothermal case, the test box activity sets up in the spacing, be provided with a plurality of sampling device on the lateral wall of test box, solve the real indoor environment of simulation how better, accelerate the problem of experimental progress, and confirm the factor that influences the floor volatilization rate through the experiment, and its influence condition, and when the installation on floor is laid, instruct the mechanic to control relevant influence factor in reasonable scope, in order to slow down the volatilization rate of organic gas such as formaldehyde, in order furthest's reduction indoor air formaldehyde's content, furthest reduces the volume of harmful gas in the suction body.

Description

Test box for simulating geothermal energy

Technical Field

The invention belongs to the technical field of test detection, and particularly relates to a test box for simulating geothermal energy.

Background

The floor heating is a mode of heating by taking the whole ground as a radiator, passing through a heating medium in a floor radiation layer, uniformly heating the whole ground, conducting from bottom to top by utilizing the heat accumulation of the ground and the upward radiation rule of heat to convey the heating purpose, and heating water by floor heating refers to a mode of heating water to a certain temperature, conveying the water to a water pipe heat dissipation network under the floor and heating through the floor.

Because the floor can be added with additives in the production process, the additives can volatilize and produce organic gases such as formaldehyde and other chemical substances, which are the main sources of indoor pollutants, the main factors causing the volatilization of the floor are temperature and humidity, and a plurality of related tests are carried out on formaldehyde volatilizers caused by the temperature and the humidity, but the following problems exist:

(1) Whether the laying mode of the heating pipe has influence on the volatilization speed of the floor or not;

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

(3) The frequency of walking on the floor can increase the volatilization speed of the floor for the tiny deformation generated by the floor;

(4) The distance between the skirting line and the surface of the floor is different, and the limit effect on the floor is different, so that the volatilization speed of the floor is influenced;

How does the effect of each factor on formaldehyde volatilization rate be determined experimentally for the possible influencing factors described above? How to better simulate the real indoor environment and accelerate the test process is an urgent problem to be solved, and the factors influencing the volatilization speed of the floor and the influence conditions thereof are determined through the test.

Disclosure of Invention

The invention overcomes the defects of the prior art, provides the test box for simulating the geothermal, is used for solving the problems of better simulating the real indoor environment and determining the influence condition of each factor on the volatilization speed of formaldehyde, and guides a technician to control related influence factors within a reasonable range when the floor is installed and paved so as to slow down the volatilization speed of organic gases such as formaldehyde and the like, so that the content of formaldehyde in indoor air is reduced to the maximum extent, and the amount of harmful gases inhaled into a body is reduced to the maximum extent.

The technical scheme of the invention is as follows:

a test box for simulating geothermal energy comprises a vibrating device, a geothermal box, a shock-absorbing spring, a test box, a connecting member, a limiting frame and a sampling device; the upper end of the vibrating device is provided with a geothermal box, the geothermal box is connected with the vibrating device through a filtering vibration spring, the upper end of the geothermal box is provided with a test box, the test box is connected with the geothermal box through a connecting component, 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 bottomless box passes through connecting elements and sets up in the upper end of geothermal case, and bottomless box passes through connecting elements and can take place relative rotation with geothermal case, and bottomless box passes through the baffle and equally divides into four regions, is first region, second region, third region and fourth region respectively, the floor piece has been laid to the bottom in first region and the fourth region, the floor piece has been laid to the bottom in second region and third region, the lower terminal surface of floor piece and floor piece is leaned on with the up end of geothermal case, be provided with adjustable spacing displacement's movable stop device in first region and the second region, be provided with the fixed stop device of non-adjustable spacing displacement in third region and the fourth region, movable stop device and fixed stop device's lower extreme is leaned on with the floor piece, and the other end setting is on the apron of bottomless box, and vibrating device can drive the floor piece vibration in the bottomless box, and the simulated person walks on the floor and to the deformation that the floor piece produced on the floor, and the air flow of real indoor floor surface of simulation simultaneously.

Preferably, the vibration device comprises a roll shaft, a first circular disc, a second circular disc, a pin rod, a vibration box, a triangular roll, a transmission rod, a motor and a limiting plate; the utility model discloses a solar energy power generation device, including the roller, the both ends parallel symmetry of roller is provided with first disk, be provided with the second disk between roller and the first disk, the second disk passes through the round pin pole respectively with roller and first disk fixed connection, two round pin poles set up the both ends at the second disk, and be central symmetry about the centroid of second disk, first disk rotates the inside that sets up at the vibration case through the pivot, two triangle roller parallel rotation sets up on the vibration incasement wall of the top of roller, the one end of triangle roller passes through the transfer line setting on the round pin pole between roller and the second disk, the other end of triangle roller passes through the transfer line setting on the round pin pole of another second disk and first disk, the vibration case outer wall is provided with the motor, the output of motor links to each other with the pivot, the triangle roller offsets with the geothermal case and leans on, the lateral wall parallel symmetry of vibration case is provided with the limiting plate, the geothermal case activity sets up between two limiting plates.

Preferably, the geothermal box comprises a geothermal box body, a sliding frame, a heat transfer layer, a heating plate, a heat insulation reflecting layer and a sealing plate; two symmetrical sliding grooves are formed in the parallel side walls of the geothermal box body, sliding frames are respectively arranged on the symmetrical sliding grooves in a sliding mode, a heat transfer layer is arranged in the sliding frame at the upper end, a heating plate is arranged in the sliding frame at the lower end, a circular through hole and a strip-shaped through hole are formed in the outer side wall of the sliding frame at the lower end, a heat insulation reflecting layer is paved at the bottom of the inner side wall of the geothermal box body, the heat transfer layer abuts against a floor block in the bottomless box body, the sealing plate is fixed on the parallel side walls of the geothermal box body through bolts, and the circular through hole and the strip-shaped through hole are formed in the sealing plate and correspond to the circular through hole and the strip-shaped through hole box on the outer side wall of the sliding frame.

Preferably, the connecting member comprises an arc-shaped limiting piece, an arc-shaped limiting strip, a first arc-shaped piece and a second arc-shaped piece; the arc limiting plates are symmetrically arranged at the upper end of the outer wall of the geothermal box body, arc limiting strips are arranged at the upper end of the arc limiting plates, the first arc plates are symmetrically arranged at the lower end of the outer side wall of the bottomless box body, the second arc plates which are arranged in parallel and symmetrically are arranged between the first arc plates in a sliding mode, the first arc plates are connected with the arc limiting plates through bolts, and the outer walls of the first arc plates are propped against the inner walls of the arc limiting strips.

Preferably, the lower end of a 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 T type draw runner slip and sets up in T type spout, the symmetry is opened there is the through-hole on the spacing piece of arc, all open on first arc piece and the second arc piece with the spacing corresponding through-hole of arc, 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 bottomless box lower extreme, it encloses into circularly to support first arc piece and the second arc piece that leans on bottomless box lateral wall, circular radius is the same with the internal diameter of the spacing of arc.

Preferably, the sampling device comprises a sampling tube, a sampling cylinder, a limiting rod, a reset spring, a plugging sheet, a limiting sheet and a sampling tube; the sampling tube is characterized in that an air inlet hole is formed in the side wall of the sampling tube, an external thread is arranged on the outer wall of the sampling tube, one end of the side wall of the sampling tube is connected with the sampling tube, a limiting rod and a reset spring are arranged on the inner wall of the sampling tube, one end of the reset spring is connected with the limiting rod, the other end of the reset spring is connected with a blocking piece, the blocking piece abuts against the side wall of the sampling tube, one end of the rod is connected with the limiting piece, the other end of the rod penetrates through the limiting rod and the reset spring to be connected with the blocking piece, and the front end of the sampling tube is connected with the sampling tube through threads.

A method of operating a simulated geothermal test chamber comprising the steps of:

step one, fixing a vibration device provided with a geothermal box on a horizontal ground;

step two, manufacturing large and small floor blocks according to the ratio of the ground size of the actual indoor space to the bottom sizes of the simulated first, second, third and fourth areas, embedding and splicing the large floor blocks into two parts according to the bottom sizes of the first and fourth areas, and embedding and splicing the small floor blocks into two parts according to the bottom sizes of the second and third areas;

Pulling out the sliding frame, placing the heat transfer layer and the heating disc in the sliding frame, enabling the water inlet end and the water outlet end of the heating tube of the heating disc to penetrate through the round through holes and the strip-shaped through holes of the sealing plate and the sliding frame respectively, enabling the water inlet end and the water outlet end to be connected with the circulating pump and the heating water tank through the water pipes, pushing the sliding frame into the symmetrical sliding grooves, and fixing the sealing plate on the parallel side walls of the geothermal box through bolts;

placing the bottomless box at the upper end of the geothermal box, enabling the upper end face of the arc-shaped limiting piece to abut against the lower end face of the first arc-shaped piece, enabling the outer side wall of the arc-shaped limiting piece to abut against the inner side wall box of 5-2, enabling a bolt to pass through holes in the arc-shaped limiting piece and the first arc-shaped piece, fixing the arc-shaped limiting piece and the first arc-shaped piece, enabling two spliced floor boards to be inserted into the bottomless box, the first area and the fourth area along a groove formed in the lower end of one parallel side wall of the bottomless box, enabling two spliced floor boards to be inserted into the second area and the third area along a groove formed in the lower end of one parallel side wall of the bottomless box, enabling a T-shaped slide bar on the side wall of the second arc-shaped piece to be inserted into a T-shaped slide groove formed in the first arc-shaped piece, enabling a baffle bar to be embedded into the groove formed in the lower end of the side wall of the bottomless box and abut against the side wall of the spliced floor boards, and enabling the bolt to pass through the upper side wall of the T-shaped slide bar and the T-shaped slide bar to be fixedly connected with the first arc-shaped piece and the second arc-shaped slide;

Step five, sleeving the upper end of the limiting frame on the bottomless box body, fixing the supporting end of the limiting frame on the horizontal ground, adjusting the movable limiting device to enable the distance between the limiting frames of the movable limiting device and the fixed limiting device 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, abutting the limiting frames against the upper end face of the floor block, and fixing the cover plate on the upper end of the bottomless box body through the locking piece to realize the sealing of the bottomless box body;

starting a motor, wherein the output end of the motor drives a first circular disc, a second circular disc, a pin rod and a roll shaft to rotate, the pin rod drives a triangular roller to rotate through a transmission rod, the two pin rods are arranged at two ends of the second circular disc, and are in central symmetry about the centroid of the second circular disc and pass through the transmission rods which are arranged in equal length, so that the two triangular rollers can synchronously rotate, the lower end face of a geothermal box is always kept horizontal under the action of the two triangular rollers which synchronously rotate, reciprocating vibration is realized under the action of a vibration filtering spring, the embedded floor plate can vertically reciprocate under the vibration, the edge of the spliced floor plate can generate tension due to the limiting effect of a limiting frame, the spliced floor plate can generate extremely tiny deformation, and the deformation caused by the tension generated by the floor plate when a simulator walks on the floor plate is controlled by controlling the rotation frequency of the motor, the air flow speed is accelerated, the air flow of the surface of a real indoor floor is simulated, and harmful substances generated by volatilization of the floor plate are accelerated into a bottomless box;

Step seven, the motor is closed, the spacing frame is adjusted to be separated from the floor block by adjusting two movable spacing devices, the distance between the spacing frame and the upper end face of the floor block is adjusted according to the test, then the motor is started for the test, the distance between the spacing frame and the upper end of the floor block can be adjusted by repeatedly controlling the closing and starting of the motor for a plurality of times, a plurality of test results are obtained for analysis and research, and each test needs to replace two large and small floor blocks which are inlaid and spliced in the same time and is inserted into a corresponding area of the bottomless box body;

and step eight, closing a motor, rotating bolts on a sealing plate, detaching the sealing plate from a geothermal box body, pulling a sliding frame open to replace heat transfer layers with different water contents produced in advance, or replacing heating plates with different heat supply pipeline laying modes, pushing the sliding frame into a symmetrical sliding chute, fixing the sealing plate on the geothermal box body by bolts to realize sealing, starting the motor to test, repeatedly controlling the closing and starting of the motor for a plurality of times, replacing the heat transfer layers with different water contents, or replacing the heating plates with different heat supply pipeline laying modes to obtain a plurality of test results, analyzing and researching parameters affecting the test, and re-replacing each two parts of large and small floor blocks with the same mosaic splicing in each test, and inserting the floor blocks into corresponding areas of the bottomless box body.

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

firstly, placing a vibration device on the horizontal ground, assembling and connecting the vibration device, a geothermal box, a vibration filtering spring, a test box, a connecting member and a limiting frame, wherein large and small floor blocks for test with equal proportion reduction are paved in a first area, a second area, a third area and a fourth area, the limiting frame is abutted against the upper end face of the floor block, and a heat transfer layer with water content of a and a heating plate with a heating pipe paved in an annular shape are correspondingly arranged in a sliding frame;

step two, adjusting the distance between the limiting frame in the first area and the second area and the upper end face of the floor block to be a certain test fixed value, starting the motor, timing, closing the motor 1-8 after 6 hours, rotating and disassembling the bolts for connecting the first arc-shaped piece and the arc-shaped limiting piece, rotating the test box 4 by 90 degrees in a clockwise manner in cooperation with the limiting frame, enabling the second arc-shaped piece to abut against the arc-shaped limiting piece at the moment, enabling the bolts to penetrate through the through holes to fixedly connect the second arc-shaped piece and the arc-shaped limiting piece, starting the motor again after 6 hours, closing the motor again, rotating and disassembling the bolts for connecting the second arc-shaped piece and the arc-shaped limiting piece, rotating the test box 4 by 90 degrees in a clockwise manner, enabling the first arc-shaped piece to abut against the arc-shaped limiting piece at the moment, enabling the bolts to penetrate through the through holes to fixedly connect the first arc-shaped piece and the arc-shaped limiting piece, repeating the operation, rotating for 4 times in a clockwise manner, and completing one experiment operation each time;

Step three, after the operation is finished, the motor is closed, 16 sampling cylinders are averagely divided into four groups, each four sampling cylinders are correspondingly connected with four sampling cylinders arranged on the side wall of one area, the front ends of the sampling cylinders are aligned to the external threads of the sampling cylinders to rotate, after the sampling cylinders are tightly connected, the pull rods of the sampling cylinders are pulled, the plugging sheets are separated from the side wall of the sampling cylinders due to the action of atmospheric pressure, the gases in the first area, the second area, the third area and the fourth area are pumped into the corresponding sampling cylinders, after the sampling is finished, the front ends of the sampling cylinders are plugged by rubber plugs, the sampling cylinders are subjected to label recording, and after the test is detected, the primary sampling is finished;

step four, replacing the heat transfer layer with the water content of b in the sliding frame 2-2, and repeating the operations of the step two and the step three without replacing a heating plate with a heating pipe laid in an annular shape;

fifthly, replacing a heat transfer layer with the water content of a and a heating plate with a heating pipe laid in an arc shape in the sliding frame 2-2, and repeating the operations 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, and repeating the operations of the step two and the step three without replacing a heating plate with a heating pipe laid in an arch shape;

step seven, gas component detection is carried out, the marks in the step three are the second area, the third area or the first area and the fourth area, a sampling cylinder for sampling the same-height sampling cylinder is taken out, the gas in the sampling cylinder after sampling is subjected to test detection, comparison analysis, analysis and heat transfer layer moisture content is the same, heating conditions are the same, sampling heights are the same, the influence of the distance between a limiting frame and a floor block on floor volatility is compared, the first area, the second area or the third area and the fourth area is compared, the analysis and heat transfer layer moisture content is the same, the heating pipe laying mode 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 floor volatility is the same, comparison analysis can be carried out on the step four, the step five and the step six to obtain data, and the data obtained in the step three is compared with the data obtained in this time, and the rule is observed;

Step eight, carrying out gas component detection, carrying out comparison analysis on the gas in the sampling cylinders of the same height and the same area, carrying out test detection on the gas in the sampling cylinders of the same height and the same area, carrying out comparison analysis on the gas in the sampling cylinders of the same height and the sampling cylinders of the same area, analyzing the influence of the water content of the heat transfer layer on the volatility of the floor, carrying out comparison analysis on the fifth step and the sixth step to obtain data, comparing the data obtained in the third step and the fourth step, and observing rules;

step nine, carrying out gas component detection, carrying out comparison analysis on the gas of the sampling cylinders of the same height and the same area, carrying out detection test on the gas of the sampling cylinders of the same area, carrying out comparison analysis on the gas of the sampling cylinders of the same height and the same area, analyzing the influence of the heat transfer layer on the floor volatility caused by the same distance between the limiting frame and the floor block by the heating pipe laying mode, carrying out comparison analysis on the gas of the step four and the gas of the same area, obtaining data, comparing the data with the data obtained in the step three and the step five, and observing rules;

and step ten, detecting gas components, namely, detecting and analyzing the gas in the sampling cylinder by adopting a controlled variable method, controlling other variables to be the same, sampling cylinders with different heights in the same area, researching the change condition of the distribution of the harmful gas generated by the volatility of the floor 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 abrupt change values, namely, uniformly dispersed or mainly concentrated at a position with a certain height from the floor block.

A limiting device for a test box simulating geothermal heat comprises a movable limiting device and a fixed limiting device; the movable limiting devices capable of adjusting limiting displacement are arranged in the first area and the second area, the fixed limiting devices capable of not adjusting limiting displacement are arranged in the third area and the fourth area, the lower ends of the movable limiting devices and the fixed limiting devices are abutted against the floor blocks, and the other ends of the movable limiting devices and the fixed limiting devices are arranged on the 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, a main scale, a sleeve, a limiting frame and a limiting member; one end of the driving rotating shaft rotates to be 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 rotary table, 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 arranged in a rotating manner 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 score line section of the main scale penetrates through the vernier scale to be arranged on the upper end face of the cover plate, a sleeve is arranged at the lower end of the driven rotating shaft, internal threads are arranged on the threaded bearing and the inner wall of the sleeve, external threads of the driven rotating shaft are matched with the internal threads of the threaded bearing and the sleeve, the sleeve at the lower end of the driven rotating shaft is connected with the limiting frame through a rod piece, a limiting member is arranged on the side wall of the transmission case, and the limiting member is matched with the ratchet wheel.

The limiting component comprises an L-shaped rod, a fixed block, an electromagnet, an iron block, a limiting column, a connecting rod, a pressure spring, a baffle and a limiting block; the L-shaped rod and the fixed block are arranged on the side wall of the transmission case, the fixed block is provided with a first groove and a second groove, the upper end of the second groove is provided with a through hole, the other end of the L-shaped rod is provided with an electromagnet, an iron block is arranged right below the electromagnet, the lower end of the iron block is provided with a limit column and a connecting rod, the limit column and the connecting rod are respectively arranged in the first groove and the through hole in a sliding manner, the other end of the connecting rod passes through a pressure spring and a baffle plate in the second groove to be connected with the limit block, the limit block is matched with a ratchet wheel, and two ends of the pressure spring are respectively connected with the upper wall and the baffle plate of the second groove.

Preferably, the fixed limiting device comprises a fixed 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 rod pieces which are symmetrically arranged.

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

Preferably, the manual rotary table is characterized in that marks are arranged on the manual rotary table, and graduation parts are arranged around the manual rotary table on the upper end face of the cover plate.

The adjusting method of the limiting device for the simulated geothermal test box comprises the following steps of:

The method comprises the steps that firstly, two limiting members are electrified, the iron blocks are attracted by the limiting members, the limiting members are driven by the iron blocks to move upwards through connecting rods, the limiting effect of the limiting blocks on a ratchet wheel is further relieved, a manual rotary table is rotated clockwise, the manual rotary table drives a first gear to rotate through a driving rotary shaft, the first gear drives a driven rotary shaft to rotate anticlockwise through the meshing effect of the first gear and a second gear, as the two ends of the driven rotary shaft are provided with identical threads, the external threads of the driven rotary shaft are matched with the threaded bearing and the internal threads of a sleeve, the threaded bearing and the sleeve move downwards, the threads are identical, the downward movement distance is identical until the lower end of the threaded bearing abuts against the upper end face of a cover plate, namely, in the 0 adjusting stage, the sleeve moves downwards, so that the distance between a movable limiting device and a limiting frame of a fixed limiting device 4-7 is identical, and the power supply of the two limiting members is disconnected;

step two, two movable limiting devices are correspondingly inserted into the first area and the second area, two fixed limiting devices 4-7 are correspondingly inserted into the third area 4-4 and the fourth area 4-5, the limiting frame abuts against the upper end face of the floor block, and the cover plate is fixed at the upper end of the bottomless box body through the locking piece, so that the bottomless box body is sealed;

Step three, adjusting the distance between the limiting frames in the first area and the second area and the upper end face of the floor according to test requirements, namely leaving gaps, when the distance between the limiting frames in the first area and the second area and the upper end face of the floor is required to be adjusted to be a fixed value amm, rotating the manual rotary table anticlockwise, driving the first gear to rotate through the driving rotary shaft by the manual rotary table, at the moment, limiting the ratchet wheel by the limiting block to overcome the limiting effect by rotating the manual rotary table anticlockwise, driving the driven rotary shaft to rotate clockwise through the meshing effect of the first gear and the second gear, and because the same threads are arranged at the two ends of the driven rotary shaft, the external threads of the driven rotary shaft are matched with the internal threads of the threaded bearing and the sleeve, so that the threaded bearing and the sleeve move upwards, and the downward movement distance is the same because the threads are the same, and the distance between the limiting frames and the upper end face of the floor is adjusted to be amm along the main scale, and the distance between the limiting frames and the upper end face of the floor is amm can be completed;

the method comprises the following steps: placing a measuring block with the height of amm which is manufactured in advance on the upper end surface of the cover plate and abutting against the scale part of the vernier, rotating the manual rotary table anticlockwise to enable the threaded bearing to drive the vernier to move upwards slowly until the 0 scale mark of the vernier coincides with the upper end surface of the side jacking block, namely finishing distance adjustment, wherein the measuring block can be a cylinder, a square or a cuboid measuring block;

The second method is as follows: through anticlockwise rotation a circle manual carousel, observe vernier and main scale to read out specific distance record of rising through vernier and main scale and be bmm, be provided with the mark on the manual carousel, be provided with scale division around the manual carousel of apron up end, the mark rotation 40 scales of manual carousel, every scale corresponds the distance of rising and isTo adjust vernier ascent amm, the scale of the manual dial is rotated by the mark: />I.e. rotate +.>A scale;

starting a motor, wherein the output end of the motor drives a first wafer 1-2, a second wafer, a pin rod and a roll shaft to rotate, the pin rod drives a triangular roller to rotate through a transmission rod 1-7, the two pin rods are arranged at two ends of the second wafer and are centrosymmetric relative to the centroid of the second wafer, and are connected with the triangular roller 1-6 through the transmission rods 1-7 which are arranged in equal length, so that the two triangular rollers can synchronously rotate, the lower end surface of a geothermal box is ensured to be kept horizontal all the time under the action of the two triangular rollers which synchronously rotate in the vibration process, and the reciprocating vibration is realized under the action of a vibration filtering spring, so that the embedded floor plate can reciprocate up and down to vibrate, the upper and lower processes all belong to the speed change process under the action of the triangular roller and the vibration filtering spring, the object motion state is changed under the action of the Newton second law due to the external force, the edge of the spliced floor block is pulled to perform variable speed movement due to the limiting function of the limiting frame, so that the spliced floor block generates tension, the tension can cause extremely tiny deformation of the floor block, 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, the air flow speed is accelerated, the problem that no air flows under the sealing condition is overcome, the air flow of the surface of a real indoor floor is fully simulated, meanwhile, the harmful substances generated by the volatilization of the floor are accelerated to enter the bottomless box body, the first gear limits the rotation of the driven rotating shaft through the meshing function of the limiting block and the second gear in the vibration process, and the threaded bearing and the sleeve cannot rotate relative to the driven rotating shaft, the distance between the limiting frame and the floor block is ensured to be unchanged;

And fifthly, closing 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, and correspondingly adjusting the distance between the limiting frame and the upper end of the floor block by repeatedly controlling the closing and starting of the motor for a plurality of times to obtain a plurality of test results, wherein the relation between the volatile harmful substances of 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 can be drawn into a continuous curve, and the two curves are compared and analyzed.

The beneficial effects of the invention are as follows:

(1) The vibration device provided with the geothermal box is fixed on the horizontal ground, the vibration of the geothermal box and the test box can be ensured to be stable vibration, the floor blocks paved 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 circular disc, the second circular disc, the pin rod and the roll shaft to rotate, the pin rod drives the triangular roller to rotate through the transmission rod, the two pin rods are arranged at the two ends of the second circular disc and are in central symmetry about the centroid of the second circular disc, and are connected with the triangular roller through the transmission rods which are arranged in equal length, so that the two triangular rollers can synchronously rotate, the lower end face of the geothermal box is ensured to be always kept horizontal under the action of the two triangular rollers which synchronously rotate in the vibration process, and the reciprocating vibration is realized under the action of the vibration filtering springs, the vibration makes the embedded floor block reciprocate up and down, under the action of the triangular roller and the vibration filtering spring, the up and down process belongs to the speed change process, according to Newton's second law, the motion state of an object is changed due to the action of external force, the edge of the spliced floor block pulls the floor block connected with the spliced floor block to perform variable speed motion due to the limiting action of the limiting frame, so that the spliced floor block generates tension action, the tension action can enable the floor block to generate extremely tiny deformation, and through controlling the rotation frequency of a motor, the deformation caused by the tension generated by the floor block when a person walks on the floor is simulated, meanwhile, 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 meanwhile, harmful substances generated by volatilization of the floor are accelerated to enter the bottomless box.

(2) Manufacturing large and small floor blocks according to the ground sizes of the actual indoor space and the simulated bottom sizes of the first area, the second area, the third area and the fourth area, embedding and splicing the large floor blocks according to the bottom sizes of the first area and the fourth area, embedding and splicing the small floor blocks according to the bottom sizes of the second area and the third area, paving the large floor blocks at the bottoms of the first area and the fourth area, paving the small floor blocks at the bottoms of the second area and the third area, abutting the lower end surfaces of the large floor blocks and the small floor blocks with the upper end surface of the geothermal box, and playing a better simulation effect through different sizes of the floor blocks arranged in each area, and effectively combining the influence of a control variable method on the volatilization speed of the floor blocks.

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

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

(5) The method comprises the steps of detecting gas components, taking out a sampling tube for sampling a sampling cylinder with the same height, carrying out test detection and comparison analysis on the gas in the sampling tube after sampling, analyzing the influence of the water content of a heat transfer layer on the floor volatilization speed by comparing the distance between a limiting frame and the floor, analyzing the influence of the water content of the heat transfer layer, the same heating tube laying mode, the same distance between the limiting frame and the floor, the influence of the size of the floor on the floor volatilization speed by analyzing the influence of the size of the floor on the floor volatilization speed by carrying out two test detection on the gas with the same height and the same area, comparing analysis, analyzing the influence of the heating tube laying mode, the same distance between the limiting frame and the floor, the influence of the water content of the heat transfer layer on the floor volatilization speed by comparing the distance between the limiting frame and the floor, and the influence of the heating tube laying mode on the floor volatilization speed by adopting a control variable method, controlling other variables to be the same, carrying out gas detection analysis on the same area and different heights, researching the change condition of the floor volatilization in the floor along with the height, and simultaneously analyzing whether a harmful gas is uniformly distributed in a certain concentration value, namely whether the harmful gas is uniformly distributed in a certain concentration position exists or not.

(6) The distance between the limit frame in the first area and the limit frame in the second area and the upper end face of the floor is adjusted according to the test requirement, namely a gap is reserved, and as 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 threaded bearing and the internal threads of the sleeve, and the distances between the threaded bearing and the sleeve which move upwards or downwards are the same, the distance between the limit frame which moves upwards or downwards can be known by adjusting the distance between the vernier which moves upwards or downwards along the main scale;

the first method for measuring the distance between the limit frame and the upper end face of the floor is as follows: the measuring block with the height of amm manufactured in advance is placed on the upper end of the cover plate and abuts against the scale part of the vernier, the manual rotary table is rotated anticlockwise to enable the threaded bearing to drive the vernier to move upwards slowly until the 0 scale mark of the vernier coincides with the upper end face of the side jacking block, and 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 limit frame and the upper end face of the floor: through anticlockwise rotation a circle manual carousel, observe vernier and main scale to read out specific distance record of rising through vernier and main scale and be bmm, be provided with the mark on the manual carousel, be provided with scale division around the manual carousel of apron up end, the mark rotation 40 scales of manual carousel, every scale corresponds the distance of rising and is To adjust vernier ascent amm, the indicia of manual dial 4-6-2 are rotated:i.e. rotate +.>The required distance can be adjusted by simple calculation without the need of quick production and measurement in advance.

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 a combination of a bottomless case, a movable stop and a fixed stop;

FIG. 3 is a front view of a bottomless case and movable stop assembly;

FIG. 4 is a front view of a bottomless case and fixed stop assembly;

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

FIG. 6 is a top view of the internal structure of the vibrating case;

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

FIG. 8 is a schematic diagram of a combination of a connecting member and a geothermal case;

FIG. 9 is a schematic diagram of a combination of a spacing frame and a thermally insulating reflective layer of a geothermal casing;

FIG. 10 is a schematic cut-away view of a combination of a geothermal casing, a sliding frame, a heat transfer layer, a heating plate, and a thermally insulating reflective layer;

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

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 being fully connected to the bottomless case;

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

FIG. 15 is a schematic view of the connection of the arcuate limit tab, arcuate limit bar, first arcuate tab and second arcuate tab;

FIG. 16 is a schematic view of a second arcuate tab inserted into a recess of a bottomless case;

FIG. 17 is a schematic view of the movable stop assembly;

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

FIG. 19 is a schematic view of the structure of the spacing member;

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

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

fig. 22 is a schematic view of a sampling device.

In the figure: 1-vibration device, 1-1 roller, 1-2-first wafer, 1-3-second wafer, 1-4-pin, 1-5-vibration box, 1-6-triangular roller, 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 reflecting layer, 2-6-sealing plate, 3-vibration filtering spring, 4-test box, 4-1-bottomless box, 4-2-first area, 4-3-second area, and 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-screw bearing, 4-6-8-vernier, 4-6-9-main scale, 4-6-10-sleeve, 4-6-11-limiting frame, 4-6-12-limiting member, 4-6-13-L-shaped rod, 4-6-14-fixed block, 4-6-8-vernier, 4-6-15-first groove, 4-6-16-second groove, 4-6-17-electromagnet, 4-6-18-iron block, 4-6-19-limit post, 4-6-20-connecting rod, 4-6-21-pressure spring, 4-6-22-stop, 4-6-23-limit block, 4-7-fixed stop, 4-8-cover plate, 5-connecting member, 5-1-arc stop, 5-2-arc stop, 5-3-first arc, 5-3-1-T-chute, 5-4-second arc, 5-4-1-T-slide, 5-4-2-stop, 6-stop, 7-sampling device, 7-1-sampling tube, 7-2-sampling cylinder, 7-3-stop, 7-4-reset spring, 7-5-block, 7-6-stop, 7-7-sampling cylinder.

Detailed Description

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

detailed description of the preferred embodiments

As shown in fig. 1 to 4, the test box simulating geothermal heat disclosed in the present embodiment includes a vibration device 1, a geothermal box 2, a shock-absorbing spring 3, a test box 4, a connecting member 5, a limit frame 6 and a sampling device 7; the upper end of the vibrating device 1 is provided with a geothermal box 2, the geothermal box 2 is connected with the vibrating device 1 through a filtering vibration spring 3, the upper end of the geothermal box 2 is provided with a test box 4, the test box 4 is connected with the geothermal box 2 through a connecting component 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 component, the bottomless box body 4-1 can rotate relative to the geothermal box 2 through a connecting component 5, the bottomless box body 4-1 is divided into four areas by a partition plate, namely a first area 4-2, a second area 4-3, a third area 4-4 and a fourth area 4-5, the bottoms of the first area 4-2 and the fourth area 4-5 are paved with floor blocks, the bottoms of the second area 4-3 and the third area 4-4 are paved with small floor blocks, the lower end surfaces of the floor blocks and the small floor blocks are propped against the upper end surface of the geothermal box 2, the movable limiting devices 4-6 capable of adjusting limiting displacement are arranged in the first area 4-2 and the second area 4-3, the fixed limiting devices 4-7 incapable of adjusting limiting displacement are arranged in the third area 4-4 and the fourth area 4-5, the lower ends of the movable limiting devices 4-6 and the fixed limiting devices 4-7 are abutted against the floor blocks, the other ends of the movable limiting devices 4-6 and the fixed limiting devices 4-7 are arranged on the 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 by walking of a person on the floor blocks is simulated, and meanwhile air flow on the surface of a real indoor floor is simulated;

The vibration device 1 provided with the geothermal box 2 is fixed on the horizontal ground, the purpose is to ensure that the whole of the geothermal box 2 and the test box 4 is stably vibrated, the test box 4 drives the floor blocks paved in the first area 4-2, the second area 4-3, the third area 4-4 and the fourth area 4-5 to stably vibrate up and down, the floor blocks which stably vibrate are matched with the upper and lower stable vibration through the limiting effect of the movable limiting device 4-6 and the fixed limiting device 4-7, the floor blocks which are not limited are driven to move up and down by the action of the adjacent floor blocks due to the embedded connection of the 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 are driven to move up and down by the action of the adjacent floor blocks, and meanwhile, the air flow speed can be increased, so that the air flow on the surface of a real indoor floor can be simulated, and organic gases such as formaldehyde generated by the volatilization of the floor can enter the upper part of the floor blocks in the area;

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, the movable limiting device 4-6 is adjusted, the distance between the movable limiting device 4-6 and a limiting frame 4-6-11 of 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 frame 4-6-11 abuts 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 a locking piece, and the cover of the bottomless box body 4-1 is realized;

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 a connecting component 5, the aim is that the temperature of a water inlet of a heating pipe is higher than that of a water outlet under the heat transfer effect of the geothermal box 2, the first area 4-2, the second area 4-3, the third area 4-4 and the fourth area 4-5 of four areas are heated unevenly, the influence of various factors on the volatility of a floor block cannot be studied through a controlled variable method, the position of each area can be rotated around 2 through 5, the heating condition of each area is identical through controlling the time of rotation, and the influence of the controlled variable method on the volatilization speed of the floor block can be effectively combined;

manufacturing large and small floor blocks according to the actual indoor space ground size 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, embedding and splicing the large floor blocks into two parts according to the bottom surface sizes of the first area 4-2 and the fourth area 4-5, embedding and splicing the small floor blocks into two parts according to the bottom surface sizes of the second area 4-3 and the third area 4-4, paving the large floor blocks 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, abutting the lower end surfaces of the large floor blocks and the small floor blocks with the upper end surface of the floor block 2, better and effectively combining the influence of a control variable method on the volatility of the floor blocks according to the different sizes of the floor blocks, simultaneously paying attention to the fact that the large floor blocks and the small floor blocks need to be replaced again in each time of the experiment, and inserting the floor blocks into the corresponding areas without the bottom box 4-1.

Detailed description of the preferred embodiments

Referring to fig. 6-9, this embodiment is different from the first embodiment in that the vibration device 1 includes a roll shaft 1-1, a first disc 1-2, a second disc 1-3, a pin 1-4, a vibration box 1-5, a triangular roll 1-6, a transmission rod 1-7, a motor 1-8, and a limiting plate 1-9; the two ends of the roll shaft 1-1 are symmetrically provided with a first circular disc 1-2 in parallel, a second circular disc 1-3 is arranged between the roll shaft 1-1 and the first circular disc 1-2, the second circular disc 1-3 is fixedly connected with the roll shaft 1-1 and the first circular disc 1-2 through pin rods, the two pin rods 1-4 are arranged at two ends of the second circular disc 1-3 and are symmetrical in center with respect to the centroid of the second circular disc 1-3, the first circular disc 1-2 is rotationally arranged in a vibrating box 1-5 through a rotating shaft, two triangular rolls 1-6 are rotationally arranged on the inner wall of a vibrating box 1-5 above the roll shaft 1-1 in parallel, one end of each triangular roll 1-6 is arranged on a pin rod 1-4 between the roll shaft 1-1 and the second circular disc 1-3 through a transmission rod 1-7, the other end of each triangular roll 1-6 is arranged on the pin rod 1-4 of the other second circular disc 1-3, the outer wall of the vibrating box 1-5 is provided with a motor 1-8, the motor 1-8 is connected with the output end of the vibrating box 1-8 and the vibrating box 1-2 in parallel, and the output end of the vibrating box is connected with the vibrating box 1-9 by a limiting plate, and the limiting plate is arranged between the two vibrating boxes 1-9 and the vibrating box and the vibrating plate is in parallel;

Starting the motor 1-8, the output end of the motor 1-8 drives the first circular disc 1-2, the second circular disc 1-3, the pin rod 1-4 and the roller shaft 1-1 to rotate, the pin rod 1-4 drives the triangular roller 1-6 to rotate through the transmission rod 1-7, the two pin rods 1-4 are arranged at two ends of the second circular disc 1-3 and are symmetrical with respect to the centroid of the second circular disc 1-3, the two triangular rollers 1-6 can synchronously rotate through the transmission rod 1-7 which is arranged in equal length and is connected with the triangular roller 1-6, the lower end face of the geothermal box 2 is ensured to be always kept horizontal in the vibration process under the action of the two triangular rollers 1-6 which synchronously rotate, the vibration is realized under the action of the vibration filtering spring 3, and the embedded floor blocks are vibrated to reciprocate up and down, under the action of the triangle roller 1-6 and the shock filtering spring 3, the up and down processes belong to the speed change process, the motion state of an object is changed under the action of the Newton's second law, the edge of the spliced floor block is pulled to perform variable speed motion under the limit action of the limit frame 4-6-11, the spliced floor block generates tension action, the tension action can cause the floor block to generate extremely tiny deformation, 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 the motor 1-8, the air flow speed is accelerated, the problem of no air flow under the sealing condition is overcome, the air flow on the surface of a real indoor floor is fully simulated, and simultaneously, the harmful substances generated by floor volatilization are quickened to enter the bottomless box body 4-1.

Detailed description of the preferred embodiments

The present embodiment is based on the first embodiment, and is different from the first embodiment in that the geothermal case 2 includes a geothermal case 2-1, a sliding frame 2-2, a heat transfer layer 2-3, a heating plate 2-4, a heat insulation reflective layer 2-5, and a sealing plate 2-6; two symmetrical sliding grooves are formed in the parallel side walls of the geothermal box body 2-1, sliding frames 2-2 are respectively arranged on the symmetrical sliding grooves in a sliding mode, 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, a circular through hole and a strip-shaped through hole 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 paved at the bottom of the inner side wall of the geothermal box body 2-1, the heat transfer layer 2-3 abuts 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 circular through hole and the strip-shaped through hole are formed in the sealing plate 2-6 and correspond to the circular through hole and the strip-shaped through hole box on the outer side wall of the sliding frame 2-2;

the sliding frame 2-2 is pulled out, the heat transfer layer 2-3 and the heating disc 2-4 are placed in the sliding frame 2-2, the water inlet end and the water outlet end of the water pipe of the heating disc 2-4 respectively penetrate through the round through holes and the strip-shaped through holes of the sealing plate 2-6 corresponding to the sliding frame 2-2, the water inlet end and the water outlet end are connected with the circulating pump and the heating water tank through the water pipe, the sliding frame 2-2 is pushed into the symmetrical sliding groove, the sealing plate 2-6 is fixed on the parallel side wall of the geothermal box body 2-1 through bolts, the heat transfer layer 2-3 and the heating disc 2-4 can be replaced for a plurality of times, the influence on the floor volatility can be studied through a control variable method, and the water content of the heat transfer layer and the paving mode of the heating pipe are influenced;

The temperature of hot water is controlled between 60 ℃ and 70 ℃, so that a plurality of heat transfer layers 2-3 are produced, the heat transfer layers are made of cement, the heat transfer layers are required to be perfect, firm, smooth and clean, no peeling phenomenon, pits and no polished surface are required (the detection method for reference is that the cement ground is not perfect by scraping with coins or keys), no dirt, foreign matters and adhesion delamination are prevented, the flatness reaches 1 square meter and less than or equal to 2mm, the water content is less than 14%;

the heating pipes in the heating discs 2-4 can be laid in various ways, and mainly adopts a main stream laying method of annular laying and arch laying.

Detailed description of the preferred embodiments

The present embodiment, with reference to fig. 1, 8, 13, 14, 15 and 16, is different from the first embodiment in that the connecting member 5 includes an arc-shaped limiting piece 5-1, an arc-shaped limiting piece 5-2, a first arc-shaped piece 5-3 and a second arc-shaped piece 5-4; the arc limiting pieces 5-1 are symmetrically arranged at the upper end of the outer wall of the geothermal box body 2-1, arc limiting strips 5-2 are arranged at the upper end of the arc limiting pieces 5-1, the first arc 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 pieces 5-4 which are symmetrically arranged in parallel are slidably arranged between the first arc pieces 5-3, the first arc pieces 5-3 are connected with the arc limiting pieces 5-1 through bolts, and the outer wall of the first arc pieces 5-3 abuts against the inner wall of the arc limiting strips 5-2;

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 is adjusted to be a certain test fixed value, the motor 1-8 is started, the timing is carried out, the motor 1-8 is closed, the bolts for connecting the first arc-shaped piece 5-3 and the arc-shaped limiting piece 5-1 are dismounted in a rotating mode, the test box 4 is matched with the limiting frame 6 to rotate 90 degrees in a clockwise mode, the second arc-shaped piece 5-4 abuts against the arc-shaped limiting piece 5-1, the bolts penetrate through the through holes to fixedly connect the second arc-shaped piece 5-4 with the arc-shaped limiting piece 5-1, the motor 1-8 is started again, the motor 1-8 is closed again, the bolts for connecting the second arc-shaped piece 5-4 with the arc-1 are dismounted in a rotating mode, the test box 4 rotates 90 degrees clockwise, the first arc-shaped piece 5-3 abuts against the arc-shaped limiting piece 5-1 in a rotating mode, the bolts penetrate through the through holes to fixedly connect the first arc-shaped piece 5-3 with the arc-shaped limiting piece 5-1, the operation is repeated, the test box is rotated 4 times, the time can be set to be equal to the time required to be 2, and the test box can be adjusted to be 1, and the test time is stable, and the test box can be rotated for time is adjusted to be 1 time and the test time is set to be equal to time to 2.

Detailed description of the preferred embodiments

Referring to fig. 1, 2, 13, and 16, the difference between this embodiment and the second embodiment is that a groove is formed at the lower end of a parallel side wall of the bottomless tank 4-1, and the air inlet end of the sampling device 7 passes through the side wall of the bottomless tank 4-1 and is disposed in the bottomless tank 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 bar 5-4-1, the T-shaped sliding bars 5-4-1 are symmetrically arranged in parallel in the T-shaped sliding groove 5-3-1 in a sliding manner, the arc-shaped limiting sheets 5-1 are symmetrically provided with through holes, the first arc-shaped sheet 5-3 and the second arc-shaped sheet 5-4 are respectively provided with a through hole corresponding to the arc-shaped limiting sheet 5-1, the arc-shaped limiting sheets 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 baffle bar 5-4-2, the baffle bar 5-4-2 is arranged in a groove at the lower end of the bottomless box 4-1, the first arc-shaped sheet 5-3 and the second arc-4 which are propped against the side wall of the bottomless box 4-1 enclose a circle, and the radius of the circle is the same as the inner diameter of the arc-shaped limiting bar 5-2;

inserting two spliced floor boards into the bottomless box body 4-1, the first area 4-2 and the fourth area 4-5 along the grooves formed at the lower ends of one parallel side wall of the bottomless box body 4-1, inserting two spliced floor boards into the second area 4-3 and the third area 4-4 along the grooves formed at the lower ends of one parallel side wall of the bottomless box body 4-1, inserting the T-shaped sliding strips 5-4-1 of the side wall of the second arc-shaped piece 5-4 into the T-shaped sliding grooves 5-3-1 on the first arc-shaped piece 5-3, enabling the baffle strips 5-4-2 to be embedded into the grooves formed at the lower ends of the side wall of the bottomless box body 4-1, the two arc-shaped plates are abutted against the side walls of the spliced floor blocks, then bolts penetrate through the upper side walls of the T-shaped sliding grooves 5-3-1 and the T-shaped sliding strips 5-4-1 to fixedly connect the first arc-shaped plates 5-3 and the second arc-shaped plates 5-4, the round radius is the same as the inner diameter of the arc-shaped limiting strips 5-2, and the purpose that the first arc-shaped plates 5-3 and the second arc-shaped plates 5-4 can freely and stably rotate between the arc-shaped limiting strips 5-2 arranged on the upper end surfaces of the arc-shaped limiting strips 5-1 is achieved, and the two arc-shaped plates can rotate for 4 times, each time by 90 degrees, so that the heating conditions of all areas are completely the same;

Detailed description of the preferred embodiments six

Referring to fig. 1, 2 and 22, the present embodiment is different from the first embodiment in that the sampling device 7 includes a sampling tube 7-1, a sampling cylinder 7-2, a limit rod 7-3, a return spring 7-4, a blocking piece 7-5, a limit piece 7-6 and a sampling tube 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 7-4 is connected with a blocking piece 7-5, the blocking piece 7-5 abuts against the side wall of the sampling cylinder 7-2, one end of a rod piece is connected with the limiting piece 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 blocking piece 7-5, and the front end of the sampling cylinder 7-1 is connected with the sampling tube 7-1 through threads;

taking 16 sampling cylinders 7-7, equally dividing the sampling cylinders into four groups, enabling the front ends of the sampling cylinders 7-7 to be aligned to external threads of the sampling cylinders 7-2 and rotate, pulling pull rods of the sampling cylinders after the sampling cylinders are tightly connected, separating the blocking pieces 7-5 from the side walls of the sampling cylinders 7-2 due to the action of atmospheric pressure, enabling gas in the first region 4-2, the second region 4-3, the third region 4-4 and the fourth region 4-5 to enter the corresponding sampling cylinders 7-7, blocking the front ends of the sampling cylinders 7-7 by rubber plugs after sampling, and performing label recording and test detection;

Each test adopts 16 sampling cylinders 7-7 to be divided into four groups on average, and the operation is repeated.

Detailed description of the preferred embodiments

The operation method of the test box simulating geothermal heat disclosed in this embodiment acts on the test box simulating geothermal heat of one of the first to sixth embodiments, and includes the following steps:

step one, fixing a vibration device 1 provided with a geothermal box 2 on a horizontal ground;

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

step three, the sliding frame 2-2 is pulled out, the heat transfer layer 2-3 and the heating disc 2-4 are placed in the sliding frame 2-2, the water inlet end and the water outlet end of the water pipe of the heating disc 2-4 respectively penetrate through the round through hole and the strip through hole of the sealing plate 2-6 corresponding to the sliding frame 2-2, the water inlet end and the water outlet end are connected with the circulating pump and the heating water tank through the water pipe, the sliding frame 2-2 is pushed into the symmetrical sliding groove, and the sealing plate 2-6 is fixed on the parallel side wall of the geothermal box 2-1 through bolts;

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 piece 5-1 to abut against the lower end face of the first arc-shaped piece 5-3, enabling the outer side wall of the arc-shaped limiting piece 5-1 to abut against the inner side wall box of the first arc-shaped piece 5-2, enabling a bolt to pass through holes in the arc-shaped limiting piece 5-1 and the first arc-shaped piece 5-3, fixing the arc-shaped limiting piece 5-1 and the first arc-shaped piece 5-3, enabling two spliced large floor blocks to be inserted into the bottomless box body 4-1, the first area 4-2 and the fourth area 4-5 along a groove formed in the lower end of one parallel side wall of the bottomless box body 4-1, inserting two spliced small floor blocks into the second area 4-3 and the third area 4-4 along a groove formed in the lower end of a parallel side wall of the bottomless box body 4-1, inserting a T-shaped slide bar 5-4-1 of the side wall of the second arc-shaped piece 5-4 into a T-shaped slide groove 5-3-1 on the first arc-shaped piece 5-3, embedding a baffle bar 5-4-2 into a groove formed in the lower end of the side wall of the bottomless box body 4-1, abutting against the side wall of the spliced floor block, and then penetrating through the upper side wall of the T-shaped slide groove 5-3-1 and the T-shaped slide bar 5-4-1 by bolts to realize the fixed connection of the first arc-shaped piece 5-3 and the second arc-shaped piece 5-4;

step five, sleeving the upper end of the limiting frame 6 on the bottomless box body 4-1, fixing the supporting end of the limiting frame 6 on the horizontal ground, adjusting the movable limiting device 4-6 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, correspondingly inserting the two movable limiting devices 4-6 into the first area 4-2 and the second area 4-3, correspondingly inserting the two fixed limiting devices 4-7 into the third area 4-4 and the fourth area 4-5, abutting the limiting frame 4-6-11 against the upper end face of the floor block, and fixing the cover plate 4-8 on the upper end of the bottomless box body 4-1 through the locking piece to realize the sealing cover of the bottomless box body 4-1;

Starting a motor 1-8, wherein the output end of the motor 1-8 drives a first circular disc 1-2, a second circular disc 1-3, a pin rod 1-4 and a roll shaft 1-1 to rotate, the pin rod 1-4 drives a triangular roller 1-6 to rotate through a transmission rod 1-7, the two pin rods 1-4 are arranged at two ends of the second circular disc 1-3, the centers of the two pin rods are symmetrical about the centers of the second circular disc 1-3 and pass through a transmission rod 1-7 which is arranged in equal length, the two triangular rollers 1-6 can synchronously rotate, the lower end face of a geothermal box 2 is ensured to be always kept at a horizontal level under the action of the two triangular rollers 1-6 which synchronously rotate, reciprocating vibration is realized under the action of a vibration filtering spring 3, the embedded floor blocks vibrate up and down, the edge of the spliced floor blocks generates tension due to the limiting effect of a limiting frame 4-6-11, the floor blocks generate extremely tiny deformation, the floor blocks simulate the rotation frequency of the motor 1-8, and the floor blocks generate tension on the floor blocks and the floor blocks do not volatilize air flowing in the floor blocks, and the floor blocks are simulated to flow in the floor blocks, and the floor blocks are free of the floor blocks and the floor blocks are moved in the floor blocks, and the floor blocks are in the floor blocks, and the floor blocks are in the floor blocks and the floor blocks;

step seven, the motor 1-8 is closed, the distance between the limiting frame 4-6-11 and the upper end face of the floor block is adjusted by adjusting the two movable limiting devices 4-6, the limiting frame 4-6-11 is separated from the floor block, the distance between the limiting frame 4-6-11 and the upper end face of the floor block is adjusted according to the test, then the test is performed by starting the motor 1-8, the closing and starting of the motor 1-8 can be repeatedly controlled for multiple times, the distance between the limiting frame 4-6-11 and the upper end of the floor block is adjusted, a plurality of test results are obtained for analysis and research, and each two identical embedded and spliced large and small floor blocks are required to be replaced in each test and are inserted into the corresponding area of the bottomless box 4-1;

And eighth, closing the motor 1-8, rotating bolts on the sealing plate 2-6, detaching the sealing plate 2-6 from the geothermal box 2-1, pulling the sliding frame 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 frame 2-2 into the symmetrical sliding grooves, fixing the sealing plate 2-6 on the geothermal box 2-1 by bolts to realize sealing, starting the motor 1-8 for testing, repeatedly controlling the closing and starting of the motor 1-8 for a plurality of times, 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 to obtain a plurality of test results, carrying out analysis and research on parameters affecting the test, and replacing the same spliced large and small floor blocks twice each time for each test, and inserting the floor blocks into the corresponding areas of the bottomless box 4-1.

Detailed description of the preferred embodiments

The method for detecting the gas in the test box disclosed by the embodiment acts on the first to sixth embodiments, and comprises the following steps:

firstly, placing a vibrating device 1 on the horizontal ground, assembling and connecting the vibrating device 1, a geothermal box 2, a vibration filtering spring 3, a test box 4, a connecting member 5 and a limiting frame 6, wherein test large and small floor blocks with equal proportion reduction 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 the floor block, and a heat transfer layer 2-3 with water content of a and a heating plate 2-4 with a heating pipe paved in an annular shape are correspondingly arranged in a sliding frame 2-2;

Step two, 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 surface of the floor block to be a certain test fixed value, starting the motor 1-8, timing, closing the motor 1-8 after 6 hours, rotating and disassembling the bolts connecting the first arc-shaped sheet 5-3 and the arc-shaped limiting sheet 5-1, rotating the test box 4 by 90 degrees in cooperation with the limiting frame 6 clockwise, abutting the second arc-shaped sheet 5-4 against the arc-shaped limiting sheet 5-1 at the moment, fixedly connecting the second arc-shaped sheet 5-4 with the arc-shaped limiting sheet 5-1 through the through holes by using the bolts, starting the motor 1-8 again after 6 hours, closing the motor 1-8 again, rotating and disassembling the bolts connecting the second arc-shaped sheet 5-4 with the arc-shaped limiting sheet 5-1, rotating the test box 4 clockwise by 90 degrees, abutting the first arc-3 against the arc-shaped limiting sheet 5-1 at the moment, fixedly connecting the first arc-3 with the arc-shaped limiting sheet 5-1 through the through holes by using the bolts, repeating the above operations for 4 times, namely, rotating for 90 degrees for each time;

turning off the motor 1-8 after the operation is finished, taking 16 sampling cylinders 7-7 to be equally divided into four groups, correspondingly connecting each four sampling cylinders 7-7 with four sampling cylinders 7-2 arranged on the side wall of one area, aligning the front ends of the sampling cylinders 7-7 with external threads of the sampling cylinders 7-2, rotating, after the sampling cylinders are tightly connected, pulling a pull rod of the sampling cylinders 7-7, separating the sealing sheet 7-5 from the side wall of the sampling cylinders 7-2 due to the action of atmospheric pressure, pumping 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, sealing the front ends of the sampling cylinders 7-7 by using rubber plugs after the sampling is finished, and performing label recording on the sampling cylinders 7-7, and detecting after the test, namely completing one-time sampling;

Step four, replacing the heat transfer layer 2-3 with the water content of b in the sliding frame 2-2, and repeating the operations of the step two and the step three without replacing the heating plate 2-4 with a heating pipe laid in a ring shape;

step five, replacing a heat transfer layer 2-3 with water content of a and a heating plate 2-4 with a heating pipe laid in an arc shape in the sliding frame 2-2, and repeating the operations of the step two and the step three;

step six, replacing the heat transfer layer 2-3 with the water content of b in the sliding frame 2-2, and repeating the operations of the step two and the step three without replacing the heating plate 2-4 with a heating pipe laid in an arc shape;

step seven, gas component detection is carried out, the marks of the second area 4-3, the third area 4-4 or the first area 4-2 and the fourth area 4-5 in the step three are compared, a sampling tube 7-7 for sampling the sampling cylinder 7-2 with the same height is taken out, the gas in the sampling tube 7-7 after sampling is subjected to test and analysis, the moisture content of the analysis heat transfer layer 2-3 is 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 board on the floor volatility is compared, the moisture content of the analysis heat transfer layer 2-3 is the same, the heating pipe laying mode is the same, the distance between the limiting frame 4-6-11 and the floor board is the same, the influence of the floor board size on the floor volatilization speed is then the comparison analysis can be carried out on the fourth step, the fifth step and the sixth step six, the data is obtained, and the data obtained in the step three are compared with the data obtained in the step three;

Step eight, carrying out gas component detection, carrying out comparison analysis on the third and fourth steps, carrying out test detection on the gas in the sampling tube 7-7 sampled by the sampling cylinder 7-2 in the same height and the same area, carrying out comparison analysis on the gas in the sampling tube 7-7, analyzing that the paving modes of heating pipes are the same, the distances between the limiting frames 4-6-11 and the floor blocks are the same, the influence of the water content of the heat transfer layer 2-3 on the floor volatility, and then carrying out comparison analysis on the fifth and sixth steps to obtain data, and comparing the data with the data obtained in the third and fourth steps to observe rules;

step nine, carrying out gas component detection, carrying out comparison analysis on the step three and the step five, carrying out detection test on the gas of the sampling tube 7-7 sampled by the sampling cylinder 7-2 in the same area with the same height, carrying out comparison analysis, analyzing that the water content of the heat transfer layer 2-3 is the same, the distance between the limiting frame 4-6-11 and the floor block is the same, and carrying out comparison analysis on the step four and the step six to obtain data, and comparing the data obtained in the step three and the step five with the data obtained in the step five to observe the law;

and step ten, detecting gas components, namely, adopting a controlled variable method to control other variables to be the same, detecting and analyzing the gas in the sampling cylinder 7-7 sampled by the sampling cylinders 7-2 with different heights in the same area, researching the change condition of the distribution of harmful gas generated by the volatility of the floor 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 abrupt values, namely, is uniformly dispersed or is mainly concentrated at a position with a certain height from the floor block.

Detailed description of the preferred embodiments nine

17, 18, 19 and 21, the limiting device for the simulated geothermal test chamber disclosed in the embodiment is characterized by comprising a movable limiting device 4-6 and a fixed limiting device 4-7; the movable limiting devices 4-6 capable of adjusting limiting displacement are arranged in the first area 4-2 and the second area 4-3, the fixed limiting devices 4-7 incapable of adjusting limiting displacement are arranged in the third area 4-4 and the fourth area 4-5, the lower ends of the movable limiting devices 4-6 and the fixed limiting devices 4-7 are abutted against the floor blocks, and the other ends of the movable limiting devices 4-6 and the fixed limiting devices 4-7 are arranged on the 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 wheel 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 member 4-6-12; one end of the driving rotating shaft 4-6-1 is rotatably arranged on the inner side wall of the transmission box 4-9, the other end of the driving rotating shaft 4-6-1 penetrates through a bearing in the cover plate 4-8 and is connected with the manual rotating disc 4-6-2, a first gear 4-6-3 and a ratchet wheel 4-6-4 are arranged on the driving rotating shaft 4-6-1 in the transmission box 4-9, the ratchet wheel 4-6-4 is positioned at the lower end of the first gear 4-6-3, the driven rotating shaft 4-6-5 is rotatably arranged through a bearing on the cover plate 4-8 and a bearing on the transmission box 4-9, a second gear 4-6-6 is arranged on the driven rotating shaft 4-6-5 in the transmission box 4-9, the first gear 4-6-3 is meshed with the second gear 4-6-6, a threaded bearing 4-6-7 is arranged at the upper end of the driven rotating shaft 4-6-5, a vernier scale 4-6-8 is arranged on the outer wall of the threaded bearing 4-6-7, a section 0 of the main scale 4-6-9 penetrates through the upper end surface of the cover plate 4-8 and is arranged on the driven rotating shaft 4-6-5, an external thread sleeve is arranged at the two ends of the driven rotating shaft 4-6-5 and is matched with the driven rotating shaft 4-6-10, the external thread sleeve is arranged at the two ends of the driven rotating shaft 4-6-5 and the driven rotating shaft 4-6-5 is matched with the external thread sleeve 4-10, the sleeve 4-6-10 at the lower end of the driven rotating shaft 4-6-5 is connected with the 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 a direction.

The limiting component 4-6-12 comprises an L-shaped rod 4-6-13, a fixed 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 limit post 4-6-19 and a connecting rod 4-6-20, the limit post 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 limit block 4-6-23, the limit block 4-6-23 is matched with a ratchet 4-6-4, and the two ends of the pressure spring 4-21 are respectively connected with the baffle 4-6-16 and the baffle 4-16 at the two ends of the second groove 4-6-16;

the two limiting members 4-6-12 are electrified, the limiting members 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 limiting effects of the limiting blocks 4-6-23 on the ratchet wheel 4-6-4 are relieved, the manual rotary table 4-6-2 is rotated clockwise, the manual rotary table 4-6-2 drives the first gear 4-6-3 to rotate through the driving rotary shaft 4-6-1, the first gear 4-6-3 drives the driven rotary shaft 4-6-5 to rotate anticlockwise through meshing with the second gear 4-6, and as the two ends of the driven rotary shaft 4-6-5 are provided with identical threads, the external threads of the driven rotary shaft 4-6-5 are matched with the internal threads of the threaded bearing 4-6-7 and the sleeve 4-6-10, the threaded bearing 4-6-7 and the sleeve 4-6-10 are all moved downwards, the same downwards distances are the same until the lower end face of the threaded bearing 4-6-7 is in close contact with the upper end face of the cover plate 4-8, the limiting device is fixed with the limiting device 4-6-8, and the limiting device is opened, and the limiting device is fixed on the limiting device 4-6-8, and the limiting device is opened, and the distance of the limiting device is the limiting device 4-6-4-6-10;

When the distance between the limit 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 regulated according to the test requirement, namely a gap is reserved, the gap is controlled between 0mm and 10mm, and the distance between the limit 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 is required to be regulated to be a fixed value amm (a < 10), the manual rotary table 4-6-2 is rotated anticlockwise, the manual rotary table 4-6-2 drives the first gear 4-6-3 to rotate through the driving rotary shaft 4-6-1, at the moment, the limit effect of the limit block 4-6-23 on the ratchet wheel 4-6-4 can be realized through anticlockwise manual rotary of the manual rotary table 4-6-2, the first gear 4-6-3 drives the driven rotating shaft 4-6-5 to rotate clockwise through the meshing action with the second gear 4-6-6, as 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, and the downward movement distance is the same because the threads are the same, and the vernier 4-6-8 is adjusted to move upwards amm along the main scale 4-6-9;

the distance measuring method for the limit frame 4-6-11 from the upper end face of the floor comprises the following steps: the measuring block with the height of amm manufactured in advance is placed on the upper end face of the cover plate 4-8 and abuts against the scale part of the vernier 4-6-8, the manual rotary table 4-6-2 is rotated anticlockwise to enable the threaded bearing 4-6-7 to drive the vernier 4-6-8 to move upwards slowly until the 0 scale mark of the vernier 4-6-8 coincides with the upper end face of the side jacking block, and distance adjustment is completed, and the measuring block can be a cylinder, a cube or a cuboid measuring block and can be used for quickly and accurately adjusting the required distance value;

The limiting component 4-6-12 adopts a mechanical structure, so that damage to electronic equipment caused by vibration is considered by adopting an electronic structure, meanwhile, the distance between the limiting frame 4-6-11 and the upper end face of the floor block caused by vibration of the driven rotating shaft 4-6-5 generated in vibration is overcome, the limiting component 4-6-12 is particularly 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 in strict control precision, and data are more accurate and effective.

Detailed description of the preferred embodiments

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 surface of the cover plate 4-8, and the other end of the fixed rod is connected with the limit frame 4-6-11 through symmetrically arranged rods;

the limiting frame 4-6-11 of the fixed limiting device 4-7 and the limiting frame 4-6-11 of the lowest point where the movable limiting device 4-6 is positioned are positioned at the same horizontal height.

Detailed description of the invention eleven

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 provided with scale portions;

The manual rotary table 4-6-2 is provided with marks, and the periphery of the manual rotary table 4-6-2 on the upper end surface of the cover plate 4-8 is provided with a scale part;

the distance measuring method for the limit frame 4-6-11 from the upper end face of the floor comprises the following steps: the vernier 4-6-8 and the main scale 4-6-9 are observed by rotating the manual rotary table 4-6-2 for one circle anticlockwise, the specific rising distance is bmm by reading the vernier 4-6-8 and the main scale 4-6-9, the manual rotary table 4-6-2 is provided with marks, the periphery of the manual rotary table 4-6-2 on the upper end surface of the cover plate 4-8 is provided with scale parts, the marks of the manual rotary table 4-6-2 rotate for 40 scales, and each scale corresponds to the rising distanceTo adjust the raising amm of vernier 4-6-8, the mark of manual dial 4-6-2 is rotated on the scale: />I.e. rotate +.>The required distance can be adjusted through simple calculation without the need of quick production and measurement in advance, wherein a scale part is arranged around the manual rotary table 4-6-2 on the upper end surface of the cover plate 4-8, the scale can be used according to the precision requirement, the corresponding scale can be adopted, namely, the circumference is divided into n parts, and the value of n is set according to the precision (the n is a positive integer larger than 1);

detailed description of the invention twelve

The adjusting method of the limiting device for the test box for simulating geothermal heat disclosed in the embodiment is applied to the limiting device for the test box for simulating geothermal heat disclosed in the ninth, tenth and eleventh embodiments, and comprises the following steps:

Step one, two limiting members 4-6-12 are electrified, the limiting members 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 connecting rods 4-6-20, further limiting effect of the limiting blocks 4-6-23 on the ratchet wheels 4-6-4 is relieved, the manual rotary table 4-6-2 is rotated clockwise, the manual rotary table 4-6-2 drives the first gear 4-6-3 to rotate through the driving rotary shaft 4-6-1, the first gear 4-6-3 drives the driven rotary shaft 4-6-5 to rotate anticlockwise through meshing with the second gear 4-6-6, and as identical threads are arranged at two ends of the driven rotary 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 downwards, and 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 surface of the cover plate 4-8, namely, the adjusting stage is 0, the sleeve 4-6-10 moves downwards, so that the distance between the spacing frames 4-6-11 of the movable spacing device 4-6 and the fixed spacing device 4-7 and the cover plate 4-8 is the same, and the power supply of the two spacing members 4-6-12 is disconnected;

step two, two movable limiting devices 4-6 are correspondingly inserted into the first area 4-2 and the second area 4-3, two fixed limiting devices 4-7 are correspondingly inserted into the third area 4-4 and the fourth area 4-5, the limiting frames 4-6-11 are abutted against the upper end surfaces of the floor blocks, and the cover plate 4-8 is fixed at the upper end of the bottomless box body 4-1 through a locking piece, so that the bottomless box body 4-1 is sealed;

Step three, adjusting the distance between the limit 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 the test requirement, namely leaving a gap, when the distance between the limit 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 is required to be amm, rotating the manual rotary table 4-6-2 anticlockwise, driving the first gear 4-6-3 to rotate by the manual rotary table 4-6-2 through the driving rotary shaft 4-6-1, wherein the limit effect of the limit block 4-6-23 on the ratchet wheel 4-6-4 can be overcome by rotating the manual rotary table 4-6-2 anticlockwise manually, the first gear 4-6-3 drives the driven rotating shaft 4-6-5 to rotate clockwise through the meshing effect with the second gear 4-6-6, as 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, and the distance between the threaded bearing 4-6-7 and the sleeve 4-6-10 is the same because the threads are the same, the distance between the vernier 4-6-8 and the main scale 4-6-9 is adjusted to move upwards by amm, and the distance between the spacing frame 4-6-11 and the upper end face of the floor block can be adjusted to amm;

the method comprises the following steps: placing a measuring block with the height of amm manufactured in advance on the upper end surface of the cover plate 4-8 and abutting against the scale part of the vernier 4-6-8, and rotating the manual rotary table 4-6-2 anticlockwise to enable the threaded bearing 4-6-7 to drive the vernier 4-6-8 to move upwards slowly until the 0 scale mark of the vernier 4-6-8 coincides with the upper end surface of the side jacking 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 is as follows: the vernier 4-6-8 and the main scale 4-6-9 are observed by rotating the manual rotary table 4-6-2 for one circle anticlockwise, the specific rising distance is bmm by reading the vernier 4-6-8 and the main scale 4-6-9, the manual rotary table 4-6-2 is provided with marks, the periphery of the manual rotary table 4-6-2 on the upper end surface of the cover plate 4-8 is provided with scale parts, the marks of the manual rotary table 4-6-2 rotate for 40 scales, and each scale corresponds to the rising distanceTo adjust the vernier 4-6-8 up amm, manual dialThe scale of the mark rotation of 4-6-2 is: />I.e. rotate +.>A scale;

step four, starting a motor 1-8, wherein the output end of the motor 1-8 drives a first circular disc 1-2, a second circular disc 1-3, a pin rod 1-4 and a roll shaft 1-1 to rotate, the pin rod 1-4 drives a triangular roller 1-6 to rotate through a transmission rod 1-7, the two pin rods 1-4 are arranged at two ends of the second circular disc 1-3 and are symmetrical with respect to the centroid of the second circular disc 1-3, the two triangular rollers 1-6 can synchronously rotate through the transmission rod 1-7 which is arranged in equal length, the lower end face of a geothermal box 2 is ensured to be kept horizontal all the time under the action of the two triangular rollers 1-6 which synchronously rotate in the vibration process, reciprocating vibration is realized under the action of a vibration filtering spring 3, and the embedded floor block is vibrated up and down in a reciprocating mode, under the action of the triangle roller 1-6 and the shock filtering spring 3, the up and down processes belong to the speed change process, the motion state of an object is changed under the action of the Newton's second law, the edge of the spliced floor block is pulled to perform variable speed motion under the limit action of the limit frame 4-6-11, the spliced floor block generates tension action, the tension action can cause the floor block to generate extremely tiny deformation, 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 the motor 1-8, the air flow speed is accelerated, the problem of no air flow under the sealing condition is overcome, the air flow on the surface of a real indoor floor is fully simulated, simultaneously, harmful substances generated by floor volatilization are quickened to enter the bottomless box body 4-1, and the first gear 4-6-3 limits the rotation of the driven rotating shaft 4-6-5 through the meshing action of the first gear 4-6-3 and the second gear 4-6 in the vibration process because of the limiting effect of the limiting block 4-6-23 on the ratchet wheel 4-6-4, 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 a floor block is ensured to be unchanged;

And fifthly, closing the motor 1-8, adjusting the distances between the limiting frames 4-6-11 and the upper end face of the floor block according to the test by adjusting the two movable limiting devices 4-6 in the first area 4-2 and the second area 4-3, then starting the motor 1-8 to perform the test, and repeatedly controlling the closing and starting of the motor 1-8 for a plurality of times, correspondingly adjusting the distances between the limiting frames 4-6-11 and the upper end of the floor block to obtain a plurality of test results, wherein the relation between the volatile harmful substances of the floor blocks in the first area 4-2 and the second area 4-3 and the distance between the limiting frames 4-6-11 and the upper end face of the floor block can be drawn into a continuous curve, and comparing and analyzing the two curves.

Claims

1. The test box simulating geothermal heat is characterized by comprising a vibration device (1), a geothermal box (2), a shock filtering spring (3), a test box (4), a connecting component (5), a limiting frame (6) and a sampling device (7); the upper end of the vibrating device (1) is provided with a geothermal box (2), the geothermal box (2) is connected with the vibrating device (1) through a filtering vibration spring (3), the upper end of the geothermal box (2) is provided with a test box (4), the test box (4) is connected with the geothermal box (2) through a connecting component (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 component, the bottomless box body (4-1) rotates relative to the geothermal box (2) through a connecting component (5), the bottomless box body (4-1) is equally divided into four areas which are respectively a first area (4-2), a second area (4-3), a third area (4-4) and a fourth area (4-5) through a partition board, the bottoms of the first area (4-2) and the fourth area (4-5) are paved with floor blocks, the bottoms of the second area (4-3) and the third area (4-4) are paved with floor blocks, the lower end surfaces of the large floor block and the small floor block are propped against the upper end surface of the geothermal box (2), movable limiting devices (4-6) capable of adjusting limiting displacement are arranged in the first area (4-2) and the second area (4-3), fixed limiting devices (4-7) capable of not adjusting limiting displacement are arranged in the third area (4-4) and the fourth area (4-5), the lower ends of the movable limiting devices (4-6) and the fixed limiting devices (4-7) are propped against the floor block, the other ends of the movable limiting devices and the fixed limiting devices are arranged on a cover plate (4-8) of the bottomless box body (4-1), the vibration device (1) drives the floor blocks in the bottomless box body (4-1) to vibrate, so that deformation caused by tension generated by walking of a person on the floor blocks is simulated, and meanwhile, air flow on the surface of a real indoor floor is simulated;

The geothermal box comprises a geothermal box body, a sliding frame, a heat transfer layer, a heating plate, a heat insulation reflecting layer and a sealing plate; two symmetrical sliding grooves are formed in the parallel side walls of the geothermal box body, sliding frames are respectively arranged on the symmetrical sliding grooves in a sliding mode, a heat transfer layer is arranged in the sliding frame at the upper end, a heating plate is arranged in the sliding frame at the lower end, a circular through hole and a strip-shaped through hole are formed in the outer side wall of the sliding frame at the lower end, a heat insulation reflecting layer is paved at the bottom of the inner side wall of the geothermal box body, the heat transfer layer abuts against a floor block in the bottomless box body, the sealing plate is fixed on the parallel side walls of the geothermal box body through bolts, and the circular through hole and the strip-shaped through hole are formed in the sealing plate and correspond to the circular through hole and the strip-shaped through hole box on the outer side wall of the sliding frame.