CN217332038U - Intelligent electric heating oven for soil test - Google Patents
Intelligent electric heating oven for soil test Download PDFInfo
- Publication number
- CN217332038U CN217332038U CN202220442321.7U CN202220442321U CN217332038U CN 217332038 U CN217332038 U CN 217332038U CN 202220442321 U CN202220442321 U CN 202220442321U CN 217332038 U CN217332038 U CN 217332038U
- Authority
- CN
- China
- Prior art keywords
- oven
- box body
- control unit
- weighing module
- intelligent electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Investigating Or Analyzing Materials Using Thermal Means (AREA)
Abstract
The utility model relates to the technical field of test equipment, in particular to an intelligent electric heating oven for soil tests, which comprises a box body, wherein a baking pan for placing a soil sample and a heating body are arranged in the box body, the heating body is uniformly arranged below the baking pan, a fan is arranged at the top of an inner cavity of the box body, and the fan faces the baking pan; the box body is provided with a control unit, a display unit and a weighing module, wherein the weighing module is connected with the baking pan, the control unit is connected with and controls the working state of the heating body, and the control unit is respectively connected with the weighing module and the display unit to form data interaction. The utility model has the advantages that: the test precision of the soil moisture content test in the geotechnical test is improved, and meanwhile, the test efficiency is improved; the automation degree is high, the use is convenient, and the time and the labor are saved; simple and reasonable structure, convenient manufacture and suitability for popularization.
Description
Technical Field
The utility model belongs to the technical field of test equipment technique and specifically relates to an intelligent electric heat oven for geotechnical test.
Background
The water content of soil (soil) is an important index for drilling and sampling in geological exploration work, and generally refers to the absolute water content of soil, namely, 100g of dried soil contains several grams of water, also called the water content of soil. The method for detecting the water content of the soil is mainly a weighing method (also called a drying method), which is a commonly used soil water measuring method and is also a current international conventional method, and the measuring precision is high. The method comprises the steps of collecting a soil sample by using a soil auger, weighing the weight of the soil sample by using a balance with the precision of 0.1g, recording the weight as the wet weight M of the soil sample, placing the weighed soil sample in an aluminum box, placing the aluminum box in a drying oven at 105 ℃ to dry the soil sample for 6-8 hours until the weight is constant, measuring the weight of the dried soil sample, recording the weight as the dry weight Ms of the soil sample, and calculating the water content of the soil according to the following formula:
the key equipment of the weighing method of the water content of the soil is an electric heating oven. In the measurement, the temperature range is generally controlled to be 105-. Drying clay for not less than 8 h; for sandy soil, the time is not less than 6 hours.
However, in the actual test operation process, a large test error is often generated because the soil sample is not completely dried, or the soil sample is dried, but the oven still continues to work, so that the test efficiency is reduced, and the spirit of energy conservation and emission reduction is not met.
Disclosure of Invention
The utility model aims at providing an intelligent electric heat oven for geotechnical test according to above-mentioned prior art not enough, through the intelligent control of reasonable heating drying mode cooperation oven, realize the high accuracy test of soil moisture content among the geotechnical test.
The utility model discloses the purpose is realized accomplishing by following technical scheme:
the utility model provides an intelligent electric heat oven for geotechnical test which characterized in that: the drying oven comprises an oven body, wherein a drying pan for placing a soil sample and heating bodies are arranged in the oven body, the heating bodies are uniformly arranged below the drying pan, and a fan is arranged at the top of an inner cavity of the oven body and faces the drying pan; the box body is provided with a control unit, a display unit and a weighing module, wherein the weighing module is connected with the baking pan, the control unit is connected with and controls the working state of the heating body, and the control unit is respectively connected with the weighing module and the display unit to form data interaction.
The heating device comprises a box body, a control unit and a thermocouple, wherein the box body is internally provided with the thermocouple for measuring internal temperature data, the thermocouple is in signal connection with the control unit, and the control unit is connected and controls the working state of the heating body according to the internal temperature data measured by the thermocouple.
The weighing module is located the outside bottom of box, weighing module with through setting up between the baking pan bottom just runs through the bracing piece of box is connected.
The support rod is a hollow metal structure support rod, a graphite support rod or a ceramic support rod.
The weighing module is fixedly arranged on the box body through a connecting body.
The display unit is provided with an alarm.
One side of the box body is provided with a baking oven door which can be opened and closed, and the baking oven door is hinged with the box body.
The bottom of the box body is provided with a base.
The utility model has the advantages that: the test precision of the soil moisture content test in the geotechnical test is improved, and meanwhile, the test efficiency is improved; the automation degree is high, the use is convenient, and the time and the labor are saved; simple and reasonable structure, convenient manufacture and suitability for popularization.
Drawings
Fig. 1 is a schematic structural view of the present invention;
fig. 2 is a sectional view of the structure taken along the line a-a in fig. 1.
Detailed Description
The features of the present invention and other related features are described in further detail below by way of example in conjunction with the accompanying drawings to facilitate understanding by those skilled in the art:
as shown in fig. 1-2, reference numerals 1-12 are respectively shown as: the oven comprises a box body 1, a control unit 2, a display unit 3, an oven door 4, a base 5, a weighing module 6, a heating body 7, a thermocouple 8, a fan 9, a baking pan 10, a connecting body 11 and a support rod 12.
Example (b): an intelligent electrothermal oven for geotechnical test in this embodiment passes through weighing module and corresponding control, display device, can dry to the constant weight and stop heating and carry out the sound prompt immediately when the constant weight to soil sample among the soil moisture content test, greatly facilitates operating personnel's work.
Specifically, as shown in fig. 1, the main body of the intelligent electric oven for the geotechnical test in this embodiment is a box body 1, the internal cavity of the box body 1 is a placing cavity for a soil sample, and the soil sample can be dried to a constant weight in the internal cavity of the box body 1. One side of the box body 1 is provided with an openable oven door 4, and the oven door 4 is hinged with the box body 1; the internal cavity of the box body 1 can be isolated from the external environment by closing the oven door 4, so that the heating effect in the box body 1 is ensured, the heating and drying efficiency is improved, and the oven door 4 is opened to take and place soil samples.
In this embodiment, in order to further improve the isolation effect at the oven door 4, a sealing member such as a sealing sheet or a sealing strip may be disposed on the oven door 4, so that the oven door 4 and the box body 1 can form a hermetic connection after being closed, thereby avoiding heat dissipation in the box body 1 during heating and drying.
As shown in FIG. 2, a baking pan 10 is provided inside the cabinet 1, and materials can be placed over the baking pan 10. A plurality of heating bodies 7 are uniformly arranged below the baking pan 10, and the heating bodies 7 can be arranged at the bottom of the inner cavity of the box body 1; the heating body 7 is used for heating to dry the soil sample placed on the baking pan 10. A fan 9 is arranged at the top of the inner cavity of the box body 1, and the fan 9 faces the baking pan 10; when using, heat exchange efficiency can be improved to fan 9, makes the heat of heating member 7 can transmit to 1 inner chamber of whole box rapidly, and then improves the drying efficiency of soil sample, improves test efficiency. A thermocouple 8 for detecting the internal temperature is also arranged on one side of the inner cavity of the box body 1.
At the bottom of the baking pan 10, support bars 12 are provided, which support bars 12 are used to support the baking pan 10. The bottom end of the support rod 12 passes through the hollow structure at the bottom of the box body 1 and is connected with the weighing module 6 arranged outside the box body 1. The weighing module 6 may measure the weight of a soil sample placed on the baking pan 10.
In the present embodiment, the weighing module 6 is fixedly installed at the bottom of the outer side of the box 1 through the connecting body 11, so as to avoid the heat of the box 1 during heating and drying from adversely affecting the weighing module 6, and in particular avoid the weighing module 6 from measuring incorrectly due to the heat. Meanwhile, the supporting rod 12 may be made of a hollow metal structure or a heat dissipating material such as graphite or ceramic to accelerate heat dissipation.
As shown in fig. 1 and 2, a control unit 2 and a display unit 3 are provided on the upper front side of the housing 1. The control unit 2 is used for setting heating temperature, controlling the heating function of the oven, and receiving and processing received data. When the device is used, the control unit 2 is connected with and controls the heating body 7 to be opened and closed, receives temperature data of the inner cavity of the box body 1 in real time through the thermocouple 8 and controls the working state of the heating body 7; at the same time, the weight data of the soil sample placed on the baking pan 10 is received by the weighing module 6. The control unit sends the received temperature and weight data to the display unit 3, when the weight data fed back by the weighing module 6 reaches a constant weight standard, the control unit 2 turns off the heating body 7 to cut off heating, and simultaneously controls the buzzer arranged on the display unit 3 to give out a prompt sound.
In this embodiment, the control unit 2 can control the temperature of the inner cavity of the box body 1 in a PID mode to improve the control accuracy, so that the temperature of the inner cavity of the box body 1 can accurately meet the setting requirement.
In practical use, the present embodiment includes the following steps:
1) the oven door 4 is opened and the soil sample is placed on the baking pan 10.
2) The oven door 4 is closed, the temperature is set by the control unit 2, and the devices are started.
The control unit 2 controls the heating body 7 and the fan 9 to be started, and the heating body and the fan heat the inner cavity of the box body 1 to dry the soil sample; in the process, the control unit 2 receives the temperature measured by the thermocouple 8 in real time and controls the working states of the heating body 7 and the fan 9 according to the set temperature, so that the inner cavity of the box body 1 is kept at the set temperature.
The weighing module 6 samples and weighs at certain time intervals (for example, 0.01s-1 min), and transmits the sampled and weighed data to the control unit 2, and the control unit 2 judges whether the soil sample is dried to constant weight according to the following formula:
Δm=（M 1 -M 2 ）＜0.1g，
wherein, Δ M is the difference between two weight samples before and after the weighing module 6, M 1 And M 2 The weighing data are sampled twice before and after the weighing module 6 respectively.
The control unit 2 transmits data such as real-time temperature, heating duration, current weight and the like to the display unit 3 so that an operator can know the current situation in real time.
3) When the soil sample is heated and dried to a constant weight, the control unit 2 controls the buzzer of the display unit to give out prompt sound to prompt an operator that the soil sample is dried to the constant weight. At this time, the operator may open the oven door 4 to take out the soil sample and calculate the water content of the soil sample, thereby completing the soil water content test.
Although the conception and the embodiments of the present invention have been described in detail with reference to the drawings, those skilled in the art will recognize that various changes and modifications can be made therein without departing from the scope of the appended claims, and therefore, the description thereof is not repeated herein.
Claims (8)
1. The utility model provides an intelligent electrothermal oven for geotechnical test which characterized in that: the drying oven comprises an oven body, wherein a drying pan for placing a soil sample and heating bodies are arranged in the oven body, the heating bodies are uniformly arranged below the drying pan, and a fan is arranged at the top of an inner cavity of the oven body and faces the drying pan; the box body is provided with a control unit, a display unit and a weighing module, wherein the weighing module is connected with the baking pan, the control unit is connected with and controls the working state of the heating body, and the control unit is respectively connected with the weighing module and the display unit to form data interaction.
2. The intelligent electric heating oven for geotechnical test according to claim 1, wherein: the heating device comprises a box body, a control unit and a thermocouple, wherein the box body is internally provided with the thermocouple for measuring internal temperature data, the thermocouple is in signal connection with the control unit, and the control unit is connected and controls the working state of the heating body according to the internal temperature data measured by the thermocouple.
3. The intelligent electric heating oven for geotechnical test according to claim 1, wherein: the weighing module is located the outside bottom of box, weighing module with through setting up between the baking pan bottom just runs through the bracing piece of box is connected.
4. The intelligent electric heating oven for geotechnical test according to claim 3, wherein: the support rod is a hollow metal structure support rod, a graphite support rod or a ceramic support rod.
5. The intelligent electric heating oven for geotechnical test according to claim 3, wherein: the weighing module is fixedly arranged on the box body through a connecting body.
6. The intelligent electric heating oven for geotechnical test according to claim 1, wherein: the display unit is provided with an alarm.
7. The intelligent electric heating oven for geotechnical test according to claim 1, wherein: one side of the box body is provided with a baking oven door which can be opened and closed, and the baking oven door is hinged with the box body.
8. The intelligent electric heating oven for geotechnical test according to claim 1, wherein: the bottom of the box body is provided with a base.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220442321.7U CN217332038U (en) | 2022-03-03 | 2022-03-03 | Intelligent electric heating oven for soil test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220442321.7U CN217332038U (en) | 2022-03-03 | 2022-03-03 | Intelligent electric heating oven for soil test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217332038U true CN217332038U (en) | 2022-08-30 |
Family
ID=82999831
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220442321.7U Active CN217332038U (en) | 2022-03-03 | 2022-03-03 | Intelligent electric heating oven for soil test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217332038U (en) |
-
2022
- 2022-03-03 CN CN202220442321.7U patent/CN217332038U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103969147B (en) | A kind of full-automatic petroleum ash content determinator | |
| CN205333434U (en) | Test instrument is extended to cable insulation cover heat | |
| CN217332038U (en) | Intelligent electric heating oven for soil test | |
| CN104062201B (en) | Measure the experimental provision of vacuum drying and vacuum lyophilization process parameter | |
| CN104614677B (en) | Method for estimating thermal runaway reaction heat of lithium ion battery | |
| CN101581681B (en) | Device for testing thermal parameters of building space enclosing structure material | |
| CN110308176A (en) | Architectural exterior-protecting construction heat transfer resistance/heat transfer coefficient on-site measurement method | |
| CN106442207B (en) | A kind of soil moisture automatic monitoring system and method based on oven drying method | |
| CN106840956A (en) | Cold and hot two-chamber evaporation residue analyzer | |
| CN217901605U (en) | Printing ink drying rapid test device | |
| CN110297011A (en) | Calorimetric method is quickly screened in a kind of quasi-adiabatic | |
| CN2384229Y (en) | Multi-sample wide temp. range magnetic performance measurer | |
| CN214749553U (en) | Quick moisture tester | |
| CN106568800B (en) | A kind of method and apparatus for detecting plank sustained release rule | |
| CN2352958Y (en) | Permanent magnetic device for investigating temp. coefficient | |
| CN104048701A (en) | Experiment device for measuring technological parameters in microwave vacuum drying process | |
| CN211061414U (en) | Rapid moisture tester adopting infrared technology | |
| CN211122185U (en) | Coal sample air-permeable drying equipment | |
| CN206891893U (en) | Cold and hot two-chamber evaporation residue analyzer | |
| CN110715877A (en) | Gypsum phase composition analysis equipment and method for measuring three phases of gypsum by using same | |
| CN219416959U (en) | Multichannel biological sample radioactive pretreatment device | |
| CN206875839U (en) | A kind of electric drying oven with forced convection | |
| CN211374408U (en) | Gypsum phase composition analytical equipment | |
| CN211453436U (en) | Bidirectional differential scanning calorimeter | |
| CN219978134U (en) | Ring-down optical cavity temperature control system suitable for CRDS equipment |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |