CN115302631A - Construction method of indoor geothermal heating filling layer - Google Patents
Construction method of indoor geothermal heating filling layer Download PDFInfo
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- CN115302631A CN115302631A CN202211010503.8A CN202211010503A CN115302631A CN 115302631 A CN115302631 A CN 115302631A CN 202211010503 A CN202211010503 A CN 202211010503A CN 115302631 A CN115302631 A CN 115302631A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C9/00—General arrangement or layout of plant
- B28C9/02—General arrangement or layout of plant for producing mixtures of clay or cement with other materials
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/02—Controlling the operation of the mixing
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B28—WORKING CEMENT, CLAY, OR STONE
- B28C—PREPARING CLAY; PRODUCING MIXTURES CONTAINING CLAY OR CEMENTITIOUS MATERIAL, e.g. PLASTER
- B28C7/00—Controlling the operation of apparatus for producing mixtures of clay or cement with other substances; Supplying or proportioning the ingredients for mixing clay or cement with other substances; Discharging the mixture
- B28C7/04—Supplying or proportioning the ingredients
- B28C7/0404—Proportioning
- B28C7/0418—Proportioning control systems therefor
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- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Preparation Of Clay, And Manufacture Of Mixtures Containing Clay Or Cement (AREA)
Abstract
The invention discloses a construction method of an indoor thermal heating filling layer, which comprises the following steps: automatically reading the information of the concrete to be proportioned, and calculating to generate related data; according to the generated related data, the upper computer transmits the generated data to the PLC control system, converts the generated data into related control data, and sends the related control data to each execution unit by the PLC control system for automatic batching; the conveying vehicle conveys the ingredients to respective storage bins respectively, the ingredients are respectively put into the scale bucket for metering, and the valve is closed to stop feeding until the numerical value displayed on the electronic scale reaches the required proportioning value; after the required ingredients in the proportion are measured, the material collecting hopper and each weighing door are opened, the materials are put into a stirring motor for stirring, the timing is started from the material collecting hopper discharging, and when the stirring time is up, the stirring motor automatically discharges the materials and conveys the materials to the indoor space. The invention has the advantages of low cost, high efficiency and high reliability.
Description
Technical Field
The invention belongs to the technical field of floor heating construction, and particularly relates to a construction method of an indoor thermal heating filling layer.
Background
The floor heating is short for floor radiation heating, the whole floor is used as a radiator, the whole floor is uniformly heated through a heating medium in a floor radiation layer, heat is supplied to the indoor through the floor in a radiation and convection heat transfer mode, the purpose of comfortable heating is achieved, and a floor heating filling layer belongs to a floor heating pipe installation auxiliary structure and is stabilized and subjected to heat preservation.
When the existing floor heating filling layer is used for construction and batching, the traditional concrete mixing plant has the problem of low construction efficiency, so that the social requirements cannot be met, and the improvement is urgently needed.
Disclosure of Invention
An object of the embodiment of the application is to provide an indoor geothermal heating filling layer construction method, which has an automatic control system with low cost, high efficiency and high reliability, can generate an alarm function when a fault occurs in the production process, displays the position of the fault, and facilitates the maintenance of workers, thereby solving the problems in the background art.
In order to solve the technical problem, the technical scheme of the construction method of the indoor geothermal heating filling layer provided by the embodiment of the application is as follows:
the embodiment of the application discloses an indoor thermal heating filling layer construction method, which comprises the following steps:
step 1: automatically reading the information of the concrete to be proportioned, and calculating to generate related data;
step 2: according to the generated related data, the upper computer transmits the generated data to a PLC control system, converts the generated data into related control data, and sends the related control data to each execution unit by the PLC control system for automatic batching;
and 3, step 3: the conveying vehicle respectively conveys the ingredients to respective storage bins, the ingredients are respectively put into the scale bucket for metering, and the valve is closed to stop feeding until the numerical value displayed on the electronic scale reaches the required proportioning value;
and 4, step 4: after the required ingredients in the ratio are measured, the material collecting hopper and each weighing door are opened, the materials are put into the stirring motor for stirring, the timing is started after the materials are unloaded from the material collecting hopper, and when the stirring time is up, the stirring motor automatically unloads the materials and conveys the materials to the indoor.
In a preferred embodiment of any of the foregoing schemes, before step 3, the method further includes:
and the PLC control system sends the collected actual values of various material scales and the running states of various execution units to an upper computer so as to realize dynamic online monitoring of the concrete mixing plant.
In a preferred embodiment of any of the foregoing schemes, after the step 4, the method further includes:
and when the mixing system is used for mixing concrete, metering the material of the next production task.
In a preferred embodiment of any of the above schemes, in step 2:
when weighing and metering of stones in the batching are started, the large door and the small door of the execution unit are opened simultaneously to carry out rapid batching, when the weight measured by the weighing sensor reaches 80% of a set value of the formula, the large door of the execution unit is closed, and only the process of blanking of the small door is remained.
In a preferred embodiment of any of the foregoing solutions, the transporting vehicle transports the ingredients to respective storage bins, and the ingredients are respectively put into weighing hoppers for metering, and the valves are closed to stop feeding until the value displayed on the electronic scale reaches the required proportioning value, including:
step 31: firstly, detecting whether the bucket value of the scale bucket is smaller than a preset value;
step 32: if the output is less than the preset value, a material bin feeding device is started, the material enters a metering scale hopper, a weighing sensor of the metering scale hopper conditions the measured dynamic data, and the dynamic data is sent to an industrial personal computer and a PLC control system through one A/D channel of an acquisition card;
step 33: the PLC control system generates corresponding control quantity after calculation, and the control quantity is sent out through a D/A channel of the acquisition card;
step 34: the analog current input end of the frequency converter or the valve receives the current, and the fuzzy controller changes the input current of the frequency converter or the valve to control the frequency of the frequency converter or the opening of the valve.
In a preferred embodiment of any of the above schemes, in the step 2 to the step 4:
when the power failure occurs in the production process, the relay stores the running states and parameters of the electronic scale, the water scale, various button switches, the electromagnetic valve, the pneumatic valve and the motor before the power failure.
In a preferred embodiment of any of the above schemes, in the step 2 to the step 4:
when equipment fails, the limit switch and the sensor are installed on the running equipment, the running state of the running equipment is monitored, and the measured signals are transmitted to the PLC control system in real time;
the PLC control system receives and distinguishes the signals, and sends out sound and light alarm signals when finding out a fault signal;
and the alarm signal is transmitted to the upper computer, the running equipment with the fault and the fault reason are displayed on the display in detail, and the operating personnel in the control room informs maintenance personnel to remove the fault according to the fault information.
In a preferred embodiment of any of the above aspects, the fuzzy controller comprises:
the fuzzification interface is used for converting the input accurate quantity into a fuzzy quantity;
the knowledge base comprises a database and a rule base, the database stores the fuzzification, fuzzy reasoning and clarification related knowledge, and the database is used for defining membership functions of fuzzy subsets of input variables and output variables;
fuzzy reasoning used for making a reasoning decision on the input analog quantity;
a fuzzification interface for fuzzification set obtained by fuzzy inference, generally by solution fuzzy calculation
The fuzzy control amount at this time is determined.
An embodiment preferred in any of the above aspects, further comprising: when long distance transport concrete, two defeated material hose both ends link together through the connecting piece respectively, the connecting piece includes connecting cylinder and gland, the gland set up in on the connecting cylinder outer wall, just the gland with the connecting cylinder welding, gland one side is used for the sealed pad of installation, be provided with the screw hole on the gland, when the equipment, two one side extrusion of gland is in the same place, and the bolt is worn to establish the screw hole is with two the gland is fixed together.
Compared with the prior art, the construction method of the indoor thermal heating filling layer has the advantages that the automatic control system is low in cost, high in efficiency and high in reliability, when a fault occurs in the production process, the alarm function can occur, the position of the fault is displayed, and the maintenance of workers is facilitated.
Drawings
The drawings described herein are for illustration purposes to provide a further understanding of the disclosure, the various components that make up the disclosure, and the exemplary embodiments and descriptions of the disclosure are intended to be illustrative of the disclosure and are not intended to be limiting of the disclosure. Some specific embodiments of the present application will be described in detail hereinafter by way of illustration and not limitation with reference to the accompanying drawings. The same reference numbers will be used throughout the drawings to refer to the same or like parts or portions, it being understood by those skilled in the art that the drawings are not necessarily drawn to scale, and wherein:
fig. 1 is a schematic flow chart of a construction method of an indoor geothermal heating filling layer according to an embodiment of the present application.
Fig. 2 is a schematic diagram illustrating a stirring process in a method for constructing an indoor geothermal heating filling layer according to an embodiment of the present application.
Fig. 3 is a schematic diagram of a PLC control system in the method for constructing an indoor geothermal heating filling layer according to the embodiment of the present application.
Fig. 4 is a schematic connection diagram illustrating two material conveying hoses when being assembled in the method for constructing an indoor geothermal heating filling layer according to the embodiment of the present application.
Fig. 5 is a schematic connection diagram of a connecting cylinder and a gland in the method for constructing an indoor geothermal heating filling layer according to the embodiment of the present application.
Detailed Description
In order to make the technical solutions better understood by those skilled in the art, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is understood that the embodiments described are merely exemplary of the various elements of the application and are not intended to be exhaustive. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort shall fall within the protection scope of the present application.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
In the description of the present application, it is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings, which is solely for the purpose of facilitating the description and simplifying the description, and does not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, is not to be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.
The following examples of the present application illustrate the scheme of the present application in detail by taking an indoor geothermal heating filling layer construction method as an example, but the present application is not limited by the examples.
Examples
Example 1
As shown in fig. 1 to 3, an embodiment of the present application provides a construction method of an indoor thermal heating filling layer, the construction method including the following steps:
step 1: and automatically reading the information of the concrete to be proportioned, and calculating to generate related data.
In the construction method of the indoor geothermal heating filling layer, when the concrete delivery wagon arrives at the station, an operator inputs specific information according to a formula given by scheduling: contract number, vehicle amount, mixer capacity, required discharge, planned amount, mixing time, sand content and water content of dry-mixed composite light aggregate, engineering name, construction unit, construction part, concrete label, conveying mode, driver, license plate number, dispatching and operator, and relevant data is automatically read and calculated by upper computer monitoring software.
Step 2: and according to the generated related data, the upper computer transmits the generated data to the PLC control system, converts the generated data into related control data, and sends the related control data to each execution unit by the PLC control system for automatic batching.
In the construction method of the indoor geothermal heating filling layer, after data are generated, the upper computer concretizes the data generated this time to the PLC control system and converts the data into related control data, and the data are sent to each execution unit by the PLC control system for automatic production. In the actual production process, the PLC control system also sends the collected actual values of various material scales and the running states of various execution units to an upper computer to realize the dynamic online monitoring of the concrete mixing plant. And the upper computer archives the production data every time the stirring task is completed, so that the later inquiry and management are facilitated. After the production task of the bicycle is completed, the upper computer automatically prints a bicycle dispatching list, and the bicycle is handed to each department by a driver. The above link is a production cycle of the concrete mixing plant. In the process of stirring production, if other vehicles arrive at the station, new production information is sequentially input into the production task list.
And 3, step 3: the conveying vehicle conveys the ingredients to respective storage bins respectively, the ingredients are respectively put into the scale bucket for metering, and the valve is closed to stop feeding until the numerical value displayed on the electronic scale reaches the required proportioning value.
In the construction method of the indoor geothermal heating filling layer, in the batching process of a concrete mixing plant, firstly, dry-mixed composite light aggregates are respectively conveyed to respective storage bins by a conveying vehicle, then feeding valves of the dry-mixed composite light aggregates mentioned in the batching process are opened, the dry-mixed composite light aggregates are respectively put into weighing hoppers for metering, the valves are closed until the numerical value displayed on an electronic scale reaches the required batching value, the feeding is stopped, and then the dry-mixed composite light aggregates are put into the collection hoppers by a flat belt and an inclined belt which are running.
And 4, step 4: after the required ingredients in the ratio are measured, the material collecting hopper and each weighing door are opened, the materials are put into the stirring motor for stirring, the timing is started after the materials are unloaded from the material collecting hopper, and when the stirring time is up, the stirring motor automatically unloads the materials and conveys the materials to the indoor.
In the construction method of the indoor geothermal heating filling layer, cement is metered while dry-mixed composite light aggregate is proportioned, when materials required in the proportioning are metered, the material collecting hopper and the weighing doors are opened, the materials are put into the stirring motor to be stirred, the time is counted from the unloading of the material collecting hopper, when the stirring time is up, the stirring motor automatically unloads the materials (or manually unloads the materials), wherein the unloading valve is half-opened and fully opened, the specific set time is finished in a monitoring picture, and one production cycle of the concrete proportioning process is finished through the steps.
As shown in fig. 1 to 3, after step 4, the method further includes:
and when the mixing system is used for mixing the concrete, metering the material of the next production task.
In the method for constructing the indoor geothermal heating filling layer according to the embodiment of the invention, in order to improve the production efficiency of the concrete mixing plant, the materials of the next production task are generally measured when the mixing system mixes the concrete. Therefore, the whole set of equipment can continuously work, the time wasted by the intermediate waiting link is saved, and the efficiency is improved. However, at the same time, the working sequence of each device must meet the production requirements, and in order to avoid errors in the batching process, the control system requires the next link to be carried out after all of a certain control state is completed, so that the installation of limit switches and sensors on each device is indispensable, and the dynamic monitoring of the control state is facilitated.
As shown in fig. 1 to 3, before step 3, the method further includes:
and the PLC control system sends the collected actual values of various material scales and the running states of various execution units to an upper computer so as to realize dynamic online monitoring of the concrete mixing plant.
In the construction method of the indoor geothermal heating filling layer, the hopper device mainly comprises the storage hopper (collecting hopper), the unloading device (valve and the like) and some auxiliary devices, and the storage hopper device is mainly used as a transition storage bin for transferring materials, so that the efficiency is improved. In this mixing station apparatus, the hopper and the weighing sensor are combined together for automatic weighing and batching. It is therefore an on-site process facility, not a warehouse for storing materials. Wherein the screw machine and the valve are also main discharging equipment. The valve mainly controls the opening and closing of the discharge opening of the hopper, mostly is a pneumatic valve, and has the advantages of simple operation and high discharge speed, and when the screw machine is used for discharging, the uniform discharging can be simply realized, and the powder hopper is also added with a vibrator to keep the discharging smooth. All the powder metering devices are provided with screw machines, and the unloading weighing hopper is provided with a pneumatic valve, so that the metering precision and the unloading speed are improved. The valve is of various types, and the fan-shaped valve is the most widely applied one in concrete mixing plant equipment, and the operation mode is controlled by a compressed air cylinder, wherein the dry-mixed composite light aggregate is mainly fed by the valve, and powder (cement, powder, fly ash, mineral powder and the like) is fed by a screw machine. The weighing device is used for measuring the actual value of each material, the accuracy of the weighing device seriously influences the quality of concrete, and the weighing device mainly comprises a storage hopper (a collecting hopper), a feeding device (a valve), a weighing device and the like. In the actual production, in order to ensure the quality of concrete, accurate weighing equipment must be selected firstly, then the weighing speed can be considered, the weighing accuracy limits the strength of concrete, and the production efficiency is influenced. According to on-spot actual conditions and weighing device's kind, electronic scale is selected for use to weighing device, and stirring equipment all can select for use general model usually, need not be equipped with water supply equipment, production work that can be stable.
As shown in fig. 1 to 3, in the step 2:
when weighing and metering of stones in the ingredients are started, the big door and the small door of the execution unit are opened simultaneously to carry out quick ingredients, when the weight measured by the weighing sensor reaches 80% of the set value of the formula, the big door of the execution unit is closed, and only the process of blanking of the small door is remained.
According to the construction method of the indoor geothermal heating filling layer, the weighing precision is improved, and the time for weighing and metering is reduced through the mutual matching of the large door and the small door. The same reasoning is adopted. For weighing and metering cement, raw materials are conveyed from respective bins to an electronic scale through screw conveyors to be metered and then are conveyed to a stirring system together. In order to realize the circulation control of the system and improve the production efficiency of the mixing plant, when the last batching task is finished and the mixing system is started to mix the concrete, the dry-mixed composite lightweight aggregate, water, cement and the like of the next circulation are simultaneously weighed and metered.
As shown in fig. 1 to fig. 3, the transporting vehicle transports the ingredients to respective storage bins, the ingredients are respectively put into the weighing hoppers for metering, and the valves are not closed until the numerical value displayed on the electronic scale reaches the required proportioning value, so as to stop feeding, including:
step 31: firstly, detecting whether the bucket value of the scale bucket is smaller than a preset value;
step 32: if the output is less than the preset value, starting a material bin feeding device, enabling the material to enter a metering weighing hopper, conditioning the measured dynamic data by a weighing sensor of the metering weighing hopper, and sending the conditioned dynamic data to an industrial personal computer and a PLC control system through one A/D channel of an acquisition card;
step 33: the PLC control system generates corresponding control quantity after calculation, and the control quantity is sent out through a D/A channel of the acquisition card;
step 34: the analog current input end of the frequency converter or the valve receives the current, and the fuzzy controller changes the input current of the frequency converter or the valve to control the frequency of the frequency converter or the opening of the valve, so that the feeding speed is changed, and the aim of controlling the whole batching process is finally fulfilled.
As shown in fig. 1 to 3, in the step 2 to the step 4:
when the power failure occurs in the production process, the relay stores the running states and parameters of the electronic scale, the water scale, various button switches, the electromagnetic valve, the pneumatic valve and the motor before the power failure;
when equipment fails, the limit switch and the sensor are arranged on the running equipment to monitor the running state of the running equipment and transmit the measured signals to the PLC control system in real time;
the PLC control system receives and distinguishes the signals, and when a fault signal is found, an audible and visual alarm signal is sent out;
and the alarm signal is transmitted to an upper computer, the running equipment with the fault and the fault reason are displayed on a display in detail, and an operator in a control room informs maintenance personnel of removing the fault according to the fault information.
In the construction method of the indoor geothermal heating filling layer, when equipment has faults, the faults can be eliminated in the shortest time in order to find the faults and find the reasons timely and accurately, and normal operation of concrete production is ensured.
As shown in fig. 1 to 3, the fuzzy controller includes:
the fuzzification interface is used for converting the input accurate quantity into a fuzzy quantity;
the knowledge base comprises a database and a rule base, the database stores the fuzzification, fuzzy reasoning and clarification related knowledge, and the database is used for defining membership functions of fuzzy subsets of input variables and output variables;
fuzzy reasoning used for making a reasoning decision on the input analog quantity;
and the clearing interface is used for determining the fuzzy control quantity at the moment through a fuzzy algorithm for the fuzzy set obtained by the fuzzy inference.
In the construction method of the indoor geothermal heating filling layer, in order to improve the material mixing speed, the material mixing process is divided into two steps of coarse material mixing and fine material mixing, and in the coarse material mixing process, a frequency converter feeds materials at the maximum frequency (or a valve is at the maximum opening degree), so that the materials are close to the expected value at the fastest speed; then, in the fine batching stage, the program can automatically adjust the frequency of the frequency converter (or the opening degree of the valve) according to the feedback value to enable the numerical value of the controlled quantity to approachRecent expectation value to make its error within the allowable range, wherein, in order to improve the precision of measurement, y is used 0 Indicating desired, i.e. steady-state, value of input material u (k) Representing the frequency of the frequency converter (or the opening of the valve), deltay representing the increment of the input material, K 1 Shows the flow coefficient of the feeding mechanism due to K 1 And the expected value y 0 Related to, so that K 1 ＝K 2 *y 0 ，K 2 As a constant, the transfer function is:
in the above control algorithm, it is assumed that the control part is continuously adjustable between the switching point and zero, and it is feasible for materials such as powder, admixture and water, which are controlled by a frequency converter, but for materials such as sand and stones in the dry-mix composite light aggregate with blocky solids, which may be stuck at the valve and cannot reach the weighing hopper when the valve opening is too small, it is not necessary to use continuously adjustable control for controlling such materials in consideration of this factor, and for this reason, we set several different valve openings such as 0, 20%, 30%, 50%, 80%, 100%, etc., and we usually set 4 openings: 100% of all doors are fully opened; 50% open 20% and 30% two doors; 20% of the doors are opened only 20%; 0, by adopting the calculation mode, the metering precision is greatly improved while the batching time is saved, and the improvement of the production efficiency and the essential change of the quality of the concrete are ensured.
As shown in fig. 4 and 5, the method for constructing an indoor geothermal heating filling layer according to the embodiment of the present invention further includes: when long distance transport concrete, two 1 both ends of defeated material hose link together through the connecting piece respectively, the connecting piece includes connecting cylinder 2 and gland 3, gland 3 set up in on the 2 outer walls of connecting cylinder, just gland 3 with 2 welding of connecting cylinder, 3 one side of gland are used for the installation to seal up, be provided with screw hole 31 on the gland 3, when the equipment, two one side extrusion of gland 3 is in the same place, and the bolt is worn to establish screw hole 31, with two gland 3 is fixed together, can realize conveniently dismantling and assemble, seals up through setting up sealed the pad, can make between the two sealed tighter.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the present application, and not to limit the same; although the present application has been described in detail with reference to the foregoing embodiments, it should be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the scope of the technical solutions of the embodiments of the present application.
Claims (9)
1. A construction method of an indoor geothermal heating filling layer is characterized by comprising the following steps: the construction method comprises the following steps:
step 1: automatically reading the information of the concrete to be proportioned, and calculating to generate related data;
and 2, step: according to the generated related data, the upper computer transmits the generated data to a PLC control system, converts the generated data into related control data, and sends the related control data to each execution unit by the PLC control system for automatic batching;
and step 3: the conveying vehicle conveys the ingredients to respective storage bins respectively, the ingredients are respectively put into the scale bucket for metering, and the valve is closed to stop feeding until the numerical value displayed on the electronic scale reaches the required proportioning value;
and 4, step 4: after the required ingredients in the proportioning are measured, the material collecting hopper and each weighing door are opened, the materials are put into the stirring motor for stirring, the time is counted from the material collecting hopper discharging, when the stirring time is up, the stirring motor automatically discharges the materials to the concrete conveying device, and the concrete conveying device conveys the materials to the indoor through the material conveying hose.
2. The method of constructing an indoor geothermal heating filling layer according to claim 1, wherein: before the step 3, the method further comprises the following steps:
the PLC control system sends the collected actual values of various material scales and the running states of various execution units to an upper computer so as to realize dynamic online monitoring of the concrete mixing plant.
3. The method of constructing an indoor geothermal heating filling layer according to claim 2, wherein: after the step 4, further comprising:
and when the mixing system is used for mixing the concrete, metering the material of the next production task.
4. The indoor geothermal heating filling layer construction method according to claim 3, wherein: in the step 2:
when weighing and metering of stones in the ingredients are started, the big door and the small door of the execution unit are opened simultaneously to carry out quick ingredients, when the weight measured by the weighing sensor reaches 80% of the set value of the formula, the big door of the execution unit is closed, and only the process of blanking of the small door is remained.
5. The indoor geothermal heating filling layer construction method according to claim 4, wherein: the delivery wagon is transported each storage bin with the batching respectively, and the batching is thrown into the weighing hopper respectively and is metered, and the valve is just closed to the numerical value that shows on the electronic scale reaches required ratio and stops throwing the material, includes:
step 31: firstly, detecting whether the bucket value of the scale bucket is smaller than a preset value;
step 32: if the output is less than the preset value, starting a material bin feeding device, enabling the material to enter a metering weighing hopper, conditioning the measured dynamic data by a weighing sensor of the metering weighing hopper, and sending the conditioned dynamic data to an industrial personal computer and a PLC control system through one A/D channel of an acquisition card;
step 33: the PLC control system generates corresponding control quantity after calculation, and the control quantity is sent out through a D/A channel of the acquisition card;
step 34: the analog current input end of the frequency converter or the valve receives the current, and the fuzzy controller changes the input current of the frequency converter or the valve to control the frequency of the frequency converter or the opening of the valve.
6. The method of constructing an indoor geothermal heating filling layer according to claim 5, wherein: in the step 2 to the step 4:
when the power failure occurs in the production process, the relay stores the running states and parameters of the electronic scale, the water scale, various button switches, the electromagnetic valve, the pneumatic valve and the motor before the power failure.
7. The method of constructing an indoor geothermal heating filling layer according to claim 6, wherein: in the step 2 to the step 4:
when equipment fails, the limit switch and the sensor are installed on the running equipment, the running state of the running equipment is monitored, and the measured signals are transmitted to the PLC control system in real time;
the PLC control system receives and distinguishes the signals, and sends out sound and light alarm signals when finding out a fault signal;
and the alarm signal is transmitted to the upper computer, the running equipment with the fault and the fault reason are displayed on the display in detail, and the operating personnel in the control room informs maintenance personnel to remove the fault according to the fault information.
8. The indoor geothermal heating filling layer construction method according to claim 7, wherein: the fuzzy controller comprises:
the fuzzification interface is used for converting the input accurate quantity into a fuzzy quantity;
the knowledge base comprises a database and a rule base, the database stores the knowledge about fuzzification, fuzzy reasoning and clarification, and the database is used for defining membership functions of fuzzy subsets of input variables and output variables;
fuzzy reasoning used for making a reasoning decision for the input analog quantity;
a fuzzification interface for fuzzification set obtained by fuzzy inference, generally by solution fuzzy calculation
The fuzzy control amount at this time is determined.
9. The method of constructing an indoor geothermal heating filling layer according to claim 8, wherein: further comprising: when long distance transport concrete, two defeated material hose (1) both ends link together through the connecting piece respectively, the connecting piece includes connecting cylinder (2) and gland (3), gland (3) set up in on connecting cylinder (2) outer wall, just gland (3) with connecting cylinder (2) welding, gland (3) one side is used for the installation to seal up, be provided with screw hole (31) on gland (3), when the equipment, two one side extrusion of gland (3) is in the same place, and the bolt is worn to establish screw hole (31), will two gland (3) are fixed together.
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| CN202211010503.8A CN115302631B (en) | 2022-08-23 | 2022-08-23 | Construction method of indoor geothermal heating filling layer |
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| CN115302631B (en) | 2023-09-22 |
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