Chemical reaction heat effect measuring device
By setting up multiple temperature measuring lines and temperature monitors inside the container, combined with insulation layers and corrosion-resistant coatings, the problem of thermometers being unable to dynamically track temperature changes in the reaction solution was solved, achieving high-precision measurement of the thermal effects of chemical reactions.
Patent Information
- Application Number
- CN202520256443.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-18
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2035-02-18
AI Technical Summary
Existing thermometers cannot dynamically track temperature changes in reaction solutions, and uneven heat dissipation during the reaction process leads to differences in temperature distribution, affecting the accuracy of measuring the thermal effects of chemical reactions.
Multiple temperature measuring lines are connected to a temperature monitor and fixed to the container by a clamping assembly. The length of the temperature measuring lines is adjustable to monitor temperature changes at different heights. It is also equipped with an insulation layer and a corrosion-resistant coating to reduce heat loss. Combined with an information acquisition module, it achieves automated data acquisition.
It enables dynamic tracking of temperature changes in the reaction solution, reduces measurement errors, and improves the accuracy and precision of the determination of the thermal effects of chemical reactions.
Smart Images
Figure CN223808372U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to instrument equipment technical field, especially a chemical reaction heat effect measuring device. BACKGROUND
[0002] In the chemical reaction process, in addition to the change of matter, energy conversion will also be accompanied, generally is the conversion between chemical energy and heat energy, the measurement of the heat of fuel is the indispensable link in the heat energy utilization, in the laboratory, the reaction heat is often determined by utilizing acid-base neutralization reaction, the main device is the calorimeter as shown in Figure 1 The main body is a reaction cup 04, the reaction cup 04 is filled with reaction solution 05, the inner wall of the reaction cup 04 is provided with vacuum insulation layer 03, the top end of the reaction cup 04 is provided with rubber plug 01 to avoid heat loss, the temperature meter 02 is arranged on the rubber plug 01, and the temperature meter 02 is inserted into the reaction cup 04 to measure the temperature of the reaction solution 05, and the monitoring personnel reads the temperature meter 02 every certain time until the temperature measured by the temperature meter 02 is stable, and the chemical reaction heat effect is calculated by using the corresponding formula;The temperature measuring sensitivity of the temperature meter 02 is not enough, the temperature change of the solution 05 cannot be dynamically tracked, and the heat dissipation of the liquid is uneven in the reaction process, so that the temperature distribution of the liquid surface at different heights is different, the height of the temperature meter 02 is certain, the temperature change at different positions of the reaction solution 05 cannot be reflected, and certain error is brought to the chemical reaction heat determination. UTILITY MODEL CONTENT
[0003] The utility model solves the technical problem to provide a chemical reaction heat effect measuring device, mainly used for chemical reaction heat effect determination, to dynamically track the temperature change of the reaction solution, and the temperature change at different positions of the reaction solution is monitored.
[0004] The utility model discloses a chemical reaction heat effect measuring device, including the container for holding reactant, the container top is equipped with the cover body, still including temperature measuring component and clamping component, the temperature measuring component includes temperature measuring line and temperature monitor, one end of temperature measuring line is inserted into the container inside through the cover body, and the other end is electrically connected with temperature monitor;The first through -hole for temperature measuring line to insert into the container inside is arranged on the cover body, the clamping component for fixing temperature measuring wire is arranged at the first through -hole, the clamping component includes the fixed seat, the inside of fixed seat is equipped with the second through -hole corresponding with the first through -hole, the sidewall of fixed seat is provided with the clamping groove for fixing temperature measuring wire, the clamping groove is linked with the second through -hole, and the temperature measuring line passes through the second through -hole, the first through -hole and is clamped in the clamping groove to adjust the length of temperature measuring line inserted into the container.
[0005] Further, a plurality of temperature measuring lines are arranged on the cover body at intervals, and each temperature measuring line has a different length inserted into the container.
[0006] Further, the second through hole is in the shape of a circular truncated cone with a diameter gradually decreasing from bottom to top, and the fixing seat is internally provided with a rubber plug for closing the second through hole.
[0007] As a preferred mode, the clamping assembly further comprises a clamping block matched with the clamping groove, and the lower end of the clamping block is provided with a through slot for the temperature measuring wire to pass through.
[0008] Further, the inside of the container is provided with a thermal insulation layer, and the inner wall of the thermal insulation layer is provided with a corrosion-resistant coating.
[0009] Further, the cover is connected with the top of the container.
[0010] Further, the outer side of the temperature measuring wire is coated with a corrosion-resistant coating, and the corrosion-resistant coating is polytetrafluoroethylene.
[0011] As a preferred mode, the thickness of the corrosion-resistant coating is 10-30 μm.
[0012] Further, the temperature monitor comprises an information acquisition module, and the temperature measuring wire is electrically connected with the information acquisition module, and each temperature measuring wire is provided with a timer for controlling the temperature measuring wire to collect data at a regular time.
[0013] The beneficial effects of the utility model are: the chemical reaction heat effect measuring device, after the temperature measuring wire is adjusted to an appropriate length, is inserted into the container, and then the temperature measuring wire is fixed on the fixing seat by the clamping groove on the fixing seat, and then the measurement is not affected by random movement, so that large errors are avoided, the temperature measured by the temperature measuring wire is displayed on the temperature monitor, and the temperature change of the reaction solution is dynamically tracked, the temperature change of the reaction solution at different height positions in the monitoring container is monitored, the accuracy of the measured data is ensured, and the precision of the displayed data is improved; and the connection mode between the temperature measuring wire, the temperature monitor and the container is simple, and the temperature measuring wire, the temperature monitor and the container are convenient to disassemble, replace and assemble. BRIEF DESCRIPTION OF DRAWINGS
[0014] Figure 1 : the existing calorimeter;
[0015] Figure 2 : the structure diagram of the chemical heat effect measuring device provided by the utility model;
[0016] Figure 3 : the sectional view of the container;
[0017] Figure 4 : the mechanism diagram of the clamping assembly;
[0018] Mark No. : 01 - rubber plug; 02 - thermometer; 03 - vacuum insulation layer; 04 - reaction cup; 05 - solution; 1 - container; 11 - cover; 111 - first through hole; 12 - heat preservation layer; 13 - hinge; 2 - temperature measuring assembly; 21 - temperature measuring wire; 211 - timer; 22 - temperature monitor; 221 - display screen; 3 - clamping assembly; 31 - fixed seat; 311 - second through hole; 32 - clamping groove; 321 - clamping block; 322 - through slot; 33 - rubber plug. DETAILED DESCRIPTION
[0019] The utility model is further explained below.
[0020] The utility model provides a chemical reaction heat effect measuring device mainly for chemical reaction heat effect measurement, including the container 1 for holding the reactant, the container 1 top is equipped with the cover 11, still including temperature measuring assembly 2 and clamping assembly 3, temperature measuring assembly 2 includes temperature measuring wire 21 and temperature monitor 22, temperature measuring wire 21 one end penetrates the cover 11 and extends into container 1 inside, and the other end is connected with temperature monitor 22 electricity, the cover 11 is equipped with the first through hole 111 for temperature measuring wire 21 to extend into container 1 inside, be equipped with the clamping assembly 3 for fixing temperature measuring wire 21 at first through hole 111, clamping assembly 3 includes fixed seat 31, the inside of fixed seat 31 is equipped with the second through hole 311 corresponding with first through hole 111, the lateral wall of fixed seat 31 is seted up with the clamping groove 32 for fixing temperature measuring wire 21, clamping groove 32 is linked together with second through hole 311.
[0021] As Figures 2-4As shown, the chemical reaction heat effect measuring device comprises a container 1, the container 1 is provided with a cover 11 at the top, the container 1 is internally provided with a cavity for containing the reactants, the cover 11 is arranged at the top of the container 1 to close the reactants in the container 1, so as to ensure that the chemical reactants can be carried out in a safe and closed environment, and reduce the heat loss in the reaction process; further comprising a temperature measuring assembly 2, the temperature measuring assembly 2 comprises a temperature measuring wire 21 and a temperature monitor 22, the temperature measuring wire 21 can adopt the temperature measuring wire 21 in the prior art, one end of the temperature measuring wire 21 is inserted into the container 1 and contacted with the reactants contained in the container 1, so as to monitor the temperature change of the reactants in the reaction process, the other end of the temperature measuring wire 21 is electrically connected with the temperature monitor 22, the temperature monitor 22 displays the temperature of the reactants in the container 1 measured by the temperature measuring wire 21, so as to be recorded by the operator; in order to facilitate the temperature measuring wire 21 to pass through the cover 11 and extend into the container 1, avoid that the temperature measuring wire 21 is pressed by the cover 11 when the cover 11 is closed with the container 1, the first through hole 111 for the temperature measuring wire 21 to pass through is arranged on the cover 11; the cover 11 is further provided with a clamping assembly 3 for fixing the temperature measuring wire 21, the clamping assembly 3 comprises a fixing seat 31, the fixing seat 31 is provided with a second through hole 311 corresponding to the first through hole 111, the side wall of the fixing seat 31 is provided with a clamping groove 32, the temperature measuring wire 21 is sequentially inserted into the container 1 through the second through hole 311 and the first through hole 111, and then the temperature measuring wire 21 is fixed in the clamping groove 32 through the clamping groove 32, so as to adjust the length of the temperature measuring wire 21 extending into the container 1, that is, to measure the temperature at different height positions in the container 1 by using the temperature measuring wire 21, and then to convert the heat effect generated by the chemical reactants in the reaction process; the temperature monitor 22 electrically connected with the temperature measuring wire 21 receives the temperature monitored by the temperature measuring wire 21 and reflects it on the screen of the temperature monitor 22, so as to be recorded by the operator, the temperature monitor 22 and the temperature measuring gun have the same temperature measuring principle and can be directly connected with the temperature measuring wire 21. After the chemical reaction heat effect measuring device is used, the temperature measuring wire 21 is adjusted to an appropriate length, inserted into the container 1, and then fixed on the fixing seat 31 by using the clamping groove 32 on the fixing seat 31, so that the measurement is not affected by the random movement, and large errors are avoided, the temperature measuring wire 21 for measuring temperature is divided into three layers of high, medium and low according to the actual position to be measured, so as to monitor the temperature at three positions of high, medium and low in the container 1, the temperature measured by the temperature measuring wire 21 is displayed on the display screen 221 of the temperature monitor 22, so as to dynamically track the temperature change of the reaction solution, and the temperature change of the reaction solution at different height positions in the container 1 is monitored, so as to ensure the accuracy of the measured data and improve the precision of the measured data; the temperature measuring wire 21 can adopt nickel alloy, which has certain corrosion resistance and can adapt to the acidity and alkalinity of different reactants, so as to be used conveniently, and the connection mode between the temperature measuring wire 21 and the temperature monitor 22 and the container 1 is simple, convenient to disassemble and replace.
[0022] Due to the uneven heat dissipation of the liquid in the reaction process, the temperature distribution at different liquid levels is different. In order to monitor the temperature at different heights in the container 1 at the same time, a plurality of temperature measuring lines 21 are arranged on the cover body 11, and the length of each temperature measuring line 21 extending into the container 1 is different. Specifically, as shown in Figure 2 、 Figure 3 、 Figure 4 The cover body 11 is provided with a plurality of clamping assemblies 3 for the temperature measuring line 21 to pass through, and each clamping assembly 3 is provided with a temperature measuring line 21. Each temperature measuring line 21 is clamped in the clamping groove 32 and fixed on the fixing seat 31 through the clamping groove 32. At the same time, it is convenient to adjust the length of the temperature measuring line 21 in the container 1, so as to obtain the temperature of the reactant at different heights in the container 1. Specifically, the temperature measuring line 21 for measuring temperature can be divided into high, medium and low three layers according to the actual position required to be measured, and the temperature at high, medium and low three positions in the container 1 is monitored respectively. Then the average value is obtained. In this way, the temperature measurement error can be reduced, and the accuracy of chemical reaction heat effect determination can be improved.
[0023] In order to reduce the heat loss of the reactant in the container 1 and ensure the accuracy of the temperature measured by the temperature measuring line 21, the second through hole 311 is in the shape of a circular truncated cone with the hole diameter gradually decreasing from bottom to top, and the fixing seat 31 is provided with a rubber plug 33 for closing the second through hole 311. By designing the second through hole 311 as a circular truncated cone with the hole diameter gradually decreasing from bottom to top, that is, a closed structure, the temperature measuring line 21 can be normally inserted while reducing the gap to avoid heat loss. At the same time, the fixing seat 31 is provided with a rubber plug 33 for closing the second through hole 311. The second through hole 311 is closed by the rubber plug 33 to reduce heat loss. Since the second through hole 311 is in the shape of a circular truncated cone with the hole diameter gradually decreasing from bottom to top, the diameter of the rubber plug 33 is matched with the minimum diameter of the second through hole 311. When the rubber plug 33 is inserted into the second through hole 311, it will not squeeze the temperature measuring line 21 and affect the use of the temperature measuring line 21. At the same time, it can close the second through hole 311 to avoid heat loss.
[0024] In order to further reduce heat loss and avoid heat escaping from the clamping groove 32, the clamping assembly 3 further comprises a clamping block 321 matched with the clamping groove 32, and the lower end of the clamping block 321 is provided with a through groove 322 for the temperature measuring line 21 to pass through. By adding the clamping block 321, the clamping groove 32 is closed, and the lower end of the clamping block 321 is provided with a through groove 322 for the temperature measuring line 21 to pass through, so as to avoid squeezing the temperature measuring line 21 and affecting the temperature monitoring.
[0025] In order to further reduce heat loss and ensure the accuracy of temperature monitoring of the reactant in the container 1 during the reaction process, accurate chemical reaction heat effect data has been obtained, as shown in Figure 2As shown, the inside of the container 1 is provided with a heat preservation layer 12, the inner wall of the heat preservation layer 12 is provided with a corrosion-resistant coating, the heat preservation layer 12 is additionally arranged in the inside of the container 1, the reactants are placed in the heat preservation layer 12 to react, the outside temperature interference is reduced, and the temperature accuracy measured by the temperature measuring line 21 is improved; and in order to ensure that the inner layer of the heat preservation layer 12 is not damaged due to corrosion of the reactants during use, a corrosion-resistant coating is arranged on the inner wall of the heat preservation layer 12. The coating can be a silver plating layer or a silver ion antibacterial coating, so as to ensure that the heat preservation layer 12 is not corroded during the reaction of the compound, and the corrosion-resistant layer arranged on the inner wall of the heat preservation layer 12 is not reacted, so as to cause the corrosion-resistant layer to fail.
[0026] In order to quickly close the container 1 after the reactants are placed in the container 1, the cover body 11 is connected with the top cover of the container 1. Specifically, the top cover connection structure between the cover body 11 and the container 1 can be connected by using the existing hinge 13 structure, or can be rotatably connected by using the existing bolt and plug block. In use, after the temperature measuring line 21 is clamped on the fixing seat 31, the temperature measuring line 21 can be moved with the cover body 11. When the cover body 11 needs to be opened to add reactants into the container 1, the cover body 11 is only turned up, at this time the temperature measuring line 21 moves with the cover body 11. After the addition of the reactants is completed, the cover body 11 is turned again to close the container 1, at this time the temperature measuring line 21 moves with the cover body 11 and extends into the inside of the container 1 to contact the reactants for temperature testing.
[0027] In order to avoid that the reactants in the container 1 corrode the temperature measuring line 21, the temperature measuring line 21 is coated with a corrosion-resistant coating. The corrosion-resistant coating can be polytetrafluoroethylene PTFE, and the thickness of the corrosion-resistant coating can be controlled to be 10-30 μm. The corrosion-resistant coating can ensure that the temperature measuring line 21 is not corroded by the reactants, and can also avoid that the diameter of the temperature measuring line 21 after the corrosion-resistant coating is arranged is too large, so that the sizes of the first through hole 111, the second through hole 311 and the clamping groove 32 through which the temperature measuring line 21 passes are too large, the heat in the container 1 is excessively lost, and the temperature accuracy measured by the temperature measuring line 21 is affected.
[0028] In order to enable the temperature monitor 22 to automatically collect data, and to determine and record the heat effect generated by the reaction of the reactants in the container 1 according to the requirement, so that the operator can obtain the data; the temperature monitor 22 comprises an information collection module, the temperature measuring wire 21 is electrically connected with the information collection module, and a timer 211 for controlling the temperature measuring wire 21 to collect data at a time is arranged on each temperature measuring wire 21; by arranging the information collection module in the temperature monitor 22, the information collection module can adopt an existing temperature monitor, such as a FLUIDWELL D043 type, the information collection module is electrically connected with the temperature measuring wire 21, so that the temperature measured by the temperature measuring wire 21 can be obtained and displayed on the screen of the temperature monitor 22; in order to collect the temperature at a time, the timer 211 is arranged on each temperature measuring wire 21, the temperature measuring wire 21 is controlled by the timer 211 to monitor the temperature of the reactants in the container 1, accurate collection and control of the temperature data are realized, and the temperature data are recorded and reflected to the display screen 221 of the temperature monitor 22 through the information collection module; automatic data collection is realized, human errors are reduced, and the reliability of the data is improved.
Claims
1. A device for measuring the heat of chemical reaction, comprising a container (1) for holding a reactant, said container (1) being provided at its top with a cover (11), characterized in that: The temperature measuring assembly (2) comprises a temperature measuring wire (21) and a temperature monitor (22), one end of the temperature measuring wire (21) extends into the container (1) through the cover (11), and the other end is electrically connected with the temperature monitor (22); the cover (11) is provided with a first through hole (111) for the temperature measuring wire (21) to extend into the container (1), and the first through hole (111) is provided with a clamping assembly (3) for fixing the temperature measuring wire; the clamping assembly (3) comprises a fixing seat (31), the inside of the fixing seat (31) is provided with a second through hole (311) corresponding to the first through hole (111), the side wall of the fixing seat (31) is provided with a clamping groove (32) for fixing the temperature measuring wire, the clamping groove (32) is communicated with the second through hole (311), and the temperature measuring wire (21) extends into the container (1) through the second through hole (311) and the first through hole (111) in sequence and is clamped in the clamping groove (32) to adjust the length of the temperature measuring wire (21) extending into the container (1).
2. The chemical reaction heat effect measuring apparatus according to claim 1, wherein: A plurality of temperature measuring wires (21) are arranged on the cover (11) at intervals, and the length of each temperature measuring wire (21) extending into the container (1) is different.
3. The chemical reaction heat effect measuring apparatus according to claim 1, wherein: The second through hole (311) is in the shape of a circular truncated cone with a gradually decreasing hole diameter from bottom to top, and the fixing seat (31) is provided with a rubber plug (33) for closing the second through hole (311).
4. The chemical reaction heat effect measuring apparatus according to claim 3, wherein: The clamping assembly (3) further comprises a clamping block (321) matched with the clamping groove (32), and the lower end of the clamping block (321) is provided with a through groove (322) for the temperature measuring wire (21) to pass through.
5. The chemical reaction heat effect measuring apparatus according to claim 1, wherein: The inside of the container (1) is provided with a heat preservation layer (12), and the inner wall of the heat preservation layer (12) is provided with a corrosion-resistant coating.
6. The chemical reaction heat effect measuring apparatus according to claim 1, wherein: The cover (11) is connected with the top of the container (1) in a flip manner.
7. The chemical reaction heat effect measuring apparatus according to claim 1, wherein: The outer side of the temperature measuring wire (21) is coated with a corrosion-resistant coating, and the corrosion-resistant coating is polytetrafluoroethylene.
8. A chemical reaction heat effect measuring apparatus as claimed in claim 7, characterized in that: The thickness of the corrosion-resistant coating is 10-30 microns.
9. A device for measuring the heat of chemical reaction according to any one of claims 1 to 8, characterized in that: The temperature monitor (22) comprises an information acquisition module, the temperature measuring wire (21) is electrically connected with the information acquisition module, and each temperature measuring wire (21) is provided with a timer (211) for controlling the temperature measuring wire (21) to collect data at a regular time.