Temperature and humidity controllable curing box for cement setting time detection

By using a zoned heating and cooling system and reusing condensate, the problem of existing cement setting time testing devices being unable to independently control high and low temperature tests has been solved, achieving efficient and accurate temperature and humidity control, and improving testing efficiency and result accuracy.

CN224060080UActive Publication Date: 2026-03-31HUAIBEI MINING XIANGSHAN CEMENT CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-25
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

Existing cement setting time testing devices cannot independently control high-temperature and low-temperature tests, resulting in low testing efficiency and drastic humidity fluctuations.

Method used

It adopts a zoned heating and cooling system, which controls the heating element and the cooling unit separately through temperature and humidity sensors and control devices. Combined with an ultrasonic humidifier, it achieves independent temperature and humidity control and uses condensate water for repeated spraying humidification to avoid humidity fluctuations.

Benefits of technology

It achieves efficient and accurate detection of cement setting time, avoids humidity fluctuations during temperature changes, improves testing efficiency, and ensures the accuracy of test results.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a temperature and humidity controllable curing box for cement setting time detection, and relates to the technical field of cement quality inspection, the temperature and humidity controllable curing box comprises a curing box unit and a cooling unit, the curing box unit comprises a shell, a door body is arranged on one side of the shell, a control device is arranged on one side of the shell, a heating pipe is fixedly installed in the shell, and the heating pipe is connected with the cooling unit. A ventilation fan is fixedly installed on the back face of the shell. The heating area and the cooling area are separated, so that temperature control is more accurate, two tests with larger spans can be carried out at one time, efficiency is higher, and meanwhile, the hot area and the cold area are separated, so that the problem of severe humidity fluctuation caused by evaporation and condensation of condensate water during temperature switching can be avoided; the condensate water can flow into the integrated pipe and the guide pipe through the inclined plate in the condensate water connecting pipe and finally enters the water tank, and the water can be sprayed and humidified through the ultrasonic humidifier in the water tank, so that the condensate water is recycled, and the condensate water is prevented from dropping into cement to influence the test result of the cement.
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Description

Technical Field

[0001] This utility model relates to the field of cement quality inspection technology, and in particular to a temperature and humidity controllable curing box for detecting cement setting time. Background Technology

[0002] The cement curing box is specially designed for the standard curing of cement test blocks. It is made entirely of stainless steel, and the spray device uses ultrasonic humidification. The refrigeration uses a high-power compressor to control temperature and humidity. It can also be equipped with a mini printer. It is an ideal device for the curing of cement concrete specimens in laboratories and quality inspection departments.

[0003] For example, patent document CN222079599U discloses a temperature and humidity controlled cement curing box for building inspection. It includes a curing box body, a detection device on the surface of the curing box body, and an internal placement device inside the curing box body. The detection device includes an air pump, a connecting seat, an air pipe, a heater, a frame, a temperature conduit, a heat-conducting plate, and a cooler. This temperature and humidity controlled cement curing box for building inspection, by incorporating the detection device, allows the heater to be activated when heating is needed, raising the temperature of the temperature conduit. The heat is then conducted through the heat-conducting plate, gradually raising the internal temperature of the placement chamber until it reaches the set temperature. It is convenient for maintaining heat. When cooling is needed, a cooler is used, allowing for timely cooling. Furthermore, the temperature control structure incorporates heat-conducting elements, resulting in shorter temperature control time, low heat conduction or cooling efficiency, and strong heat preservation, leading to good performance in use.

[0004] The temperature and humidity controllable curing chamber in the above-mentioned device uses two tests when testing cement setting time: one at high temperature and one at low temperature. It is impossible to control the temperature separately and perform the high temperature and low temperature tests at the same time, which results in poor testing efficiency. At the same time, due to condensation problems, the humidity fluctuates drastically when switching temperatures. Therefore, it is necessary to improve it. Utility Model Content

[0005] This utility model discloses a temperature and humidity controllable curing box for testing cement setting time, which aims to solve the above-mentioned technical problems.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A temperature and humidity controlled curing chamber for testing cement setting time includes a curing chamber unit and a cooling unit.

[0008] The curing box unit includes an outer shell, a door on one side of the outer shell, a control device on one side of the outer shell, a heating tube fixedly installed inside the outer shell, a ventilation fan fixedly installed on the back of the outer shell, two first placement trays fixedly installed inside the outer shell, two temperature and humidity sensors fixedly installed inside the outer shell, an ultrasonic humidifier fixedly installed on the bottom of the inner wall of the outer shell, and a heat insulation plate fixedly installed inside the outer shell and between the two first placement trays.

[0009] The cooling unit includes a refrigeration unit, which is fixedly installed inside the housing. A refrigeration plate is fixedly installed at the output end of the refrigeration unit. Fine bristles are fixedly installed at the bottom of the refrigeration plate. A condensate drain pipe is fixedly installed inside the housing and below the fine bristles. One end of the condensate drain pipe is fixedly connected to an integrated pipe. A conduit is fixedly connected to one side of the integrated pipe. A water tank is threadedly connected to the bottom of the conduit.

[0010] In a preferred embodiment, the output terminal of the temperature and humidity sensor is electrically connected to the control device, and the output terminal of the control device is electrically connected to the refrigerator, the heating element, and the ultrasonic humidifier.

[0011] In a preferred embodiment, the output end of the ultrasonic humidifier is fixedly installed inside the two first placement trays, and the outer wall of the insulation plate is fixedly installed with the first placement trays.

[0012] In a preferred embodiment, the water tank is fixedly connected to the input terminal of the ultrasonic humidifier, and a water inlet pipe is fixedly connected to the top of the water tank.

[0013] In a preferred embodiment, an inclined plate is fixedly installed inside the condensate drain pipe, and a dustproof net is fixedly installed on one side of the ventilation fan.

[0014] In a preferred embodiment, a cooling fan is fixedly installed on the back of the refrigerator, and the control device consists of a display and control buttons.

[0015] In a preferred embodiment, a handle is fixedly installed on one side of the door, and a magnet is fixedly installed on the other side of the door, with the door and the outer shell magnetically attracted to each other via the magnet.

[0016] As can be seen from the above, the temperature and humidity controllable curing box for testing cement setting time provided by this utility model has the following technical effects.

[0017] Firstly, by inputting heating and cooling data through the control device, the heating element and the cooling unit are activated to heat and cool the cement location. The heating and cooling areas are tested separately. When the temperature reaches the specified temperature, the control device controls the switching on and off of the heating element and the cooling unit to achieve temperature control. At the same time, the humidity is increased by an ultrasonic humidifier. When the specified humidity is reached, the control device controls the ultrasonic humidifier to turn off. The humidity can also be reduced by ventilation through a fan. Since the heating and cooling areas are separated, the temperature control is more accurate. Two tests with a large range can be performed at the same time, which is more efficient. At the same time, separating the hot and cold areas can also avoid the problem of drastic humidity fluctuations caused by condensation when switching temperatures.

[0018] Secondly, when condensation is generated on the cooling plate, the condensate drips through the fine hairs into the condensate drain pipe. The inclined plate inside the condensate drain pipe allows the condensate to flow into the integrated pipe and conduit, and finally into the water tank. The water in the water tank can then be sprayed and humidified by the ultrasonic humidifier, realizing the reuse of condensate and preventing condensate from dripping into the cement and affecting the cement test results. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the main structure proposed in this utility model.

[0020] Figure 2 The present utility model proposes Figure 1 A schematic diagram of the internal structure of the outer shell.

[0021] Figure 3 This is a partial structural schematic diagram of the present invention.

[0022] Figure 4 The present utility model proposes Figure 1 A schematic diagram of the structure after rotation at a certain angle.

[0023] In the attached diagram: 100, curing box unit; 200, cooling unit; 101, outer shell; 102, door; 103, control device; 104, heating element; 105, ventilation fan; 106, first placement tray; 107, temperature and humidity sensor; 108, ultrasonic humidifier; 109, insulation board; 201, refrigeration unit; 202, refrigeration plate; 203, condensate drain pipe; 204, fine bristles; 205, integrated pipe; 206, conduit; 207, water tank. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0025] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0026] Reference Figures 1-4 A temperature and humidity controllable curing chamber for testing cement setting time includes a curing chamber unit 100 and a cooling unit 200.

[0027] The curing box unit 100 includes an outer shell 101, a door 102 on one side of the outer shell 101, a control device 103 on one side of the outer shell 101, a heating tube 104 fixedly installed inside the outer shell 101 to provide heating capacity, a ventilation fan 105 fixedly installed on the back of the outer shell 101 to provide rapid ventilation and reduce humidity inside the outer shell 101, two first placement trays 106 fixedly installed inside the outer shell 101 to hold cups containing cement, two temperature and humidity sensors 107 fixedly installed inside the outer shell 101 to detect the temperature and humidity inside the outer shell 101, an ultrasonic humidifier 108 fixedly installed at the bottom of the inner wall of the outer shell 101, and a heat insulation plate 109 fixedly installed inside the outer shell 101 between the two first placement trays 106 to separate the two first placement trays 106, thereby forming a cold zone and a hot zone.

[0028] The cooling unit 200 includes a refrigerator 201, which is fixedly installed inside the housing 101. A cooling plate 202 is fixedly installed at the output end of the refrigerator 201. A fine bristle 204 is fixedly installed at the bottom of the cooling plate 202. A condensate drain pipe 203 is fixedly installed inside the housing 101 and below the fine bristle 204. One end of the condensate drain pipe 203 is fixedly connected to an integrated pipe 205. Condensate is guided into the condensate drain pipe 203 through the fine bristle 204. A conduit 206 is fixedly connected to one side of the integrated pipe 205. A water tank 207 is threadedly connected to the bottom of the conduit 206. Water is stored in the water tank 207 for easy spraying out through the ultrasonic humidifier 108.

[0029] In this embodiment, heating and cooling data are input through the control device 103, and the heating tube 104 and the chiller 201 are activated to heat and cool the cement location. The heating and cooling areas are tested separately. When the temperature reaches the specified temperature, the control device 103 controls the switching on and off of the heating tube 104 and the chiller 201 to achieve temperature control. At the same time, the humidity is increased by the ultrasonic humidifier 108. When the specified humidity is reached, the control device 103 controls the ultrasonic humidifier 108 to turn off. The humidity can also be reduced by ventilation through the ventilation fan 105. Since the heating and cooling areas are separated, the temperature control is more accurate, and two tests with a large span can be performed at the same time, which is more efficient. At the same time, separating the hot and cold areas can also avoid the problem of drastic humidity fluctuations caused by condensation when switching temperatures.

[0030] In a preferred embodiment, the output terminal of the temperature and humidity sensor 107 is electrically connected to the control device 103, and the output terminal of the control device 103 is electrically connected to the refrigerator 201, the heating element 104, and the ultrasonic humidifier 108.

[0031] In this embodiment, the control device 103 receives data from the temperature and humidity sensor 107 and controls the switching of the refrigerator 201, the heating tube 104 and the ultrasonic humidifier 108 according to the set temperature, thereby realizing the temperature and humidity control of the cold and hot areas inside the outer casing 101.

[0032] In a preferred embodiment, the output end of the ultrasonic humidifier 108 is fixedly installed inside the two first placement plates 106, and the outer wall of the heat insulation plate 109 is fixedly installed with the first placement plates 106.

[0033] In this embodiment, the ultrasonic humidifier 108 sprays fine water droplets to humidify the inside of the outer casing 101 and control the humidity inside the outer casing 101.

[0034] In a preferred embodiment, the water tank 207 is fixedly connected to the input terminal of the ultrasonic humidifier 108, and a water inlet pipe is fixedly connected to the top of the water tank 207.

[0035] In this embodiment, the water tank 207 can be easily filled with water through the water filling pipe, which facilitates the ultrasonic humidifier 108 to spray water for humidification.

[0036] In a preferred embodiment, a slanted plate is fixedly installed inside the condensate drain pipe 203, and a dustproof net is fixedly installed on one side of the ventilation fan 105.

[0037] In this embodiment, the inclined plate can easily guide the water flow and facilitate the collection of condensate.

[0038] In a preferred embodiment, a cooling fan is fixedly mounted on the back of the refrigerator 201, and the control device 103 consists of a display and control buttons.

[0039] In this embodiment, a specified temperature is set by a control button, and the temperature and humidity data received by the temperature and humidity sensor 107 are displayed on the display of the control device 103.

[0040] In a preferred embodiment, a handle is fixedly installed on one side of the door body 102, and a magnet is fixedly installed on one side of the door body 102. The door body 102 is magnetically attracted to the outer shell 101 through the magnet.

[0041] In this embodiment, the magnet facilitates a tight fit between the door 102 and the outer casing 101, preventing the door 102 from being opened by non-human force.

[0042] Working principle: When in use, first open the door 102 by the handle on the door 102, then place the cement that needs to be tested for setting time in the cup and place it on the first placement tray 106. Place cement on both different first placement trays 106, then close the door 102. The magnet on the door 102 will attract the outer shell 101.

[0043] The heating and cooling data are input through the control device 103, and the heating tube 104 and the chiller 201 are started to heat and cool the cement. The heating and cooling areas are tested separately. When the temperature reaches the specified temperature, the control device 103 controls the switching on and off of the heating tube 104 and the chiller 201 to achieve temperature control. At the same time, the humidity is increased by the ultrasonic humidifier 108. When the specified humidity is reached, the control device 103 controls the ultrasonic humidifier 108 to turn off. The humidity can also be reduced by ventilation through the ventilation fan 105. Since the heating and cooling areas are separated, the temperature control is more accurate, and two tests with a large span can be performed at the same time, which is more efficient.

[0044] When condensation is generated on the cooling plate 202, the condensate drips through the fine hairs 204 into the condensate drain pipe 203. The inclined plate inside the condensate drain pipe 203 allows the condensate to flow into the integrated pipe 205 and the conduit 206, and finally into the water tank 207. The water in the water tank 207 can be sprayed and humidified by the ultrasonic humidifier 108, realizing the reuse of condensate and preventing condensate from dripping into the cement and affecting the cement test results.

[0045] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Substitutions may include replacements for some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the scope of protection of this utility model.

Claims

1. A temperature and humidity controllable curing chamber for testing cement setting time, comprising a curing chamber unit (100) and a cooling unit (200), characterized in that: The maintenance box unit (100) includes an outer shell (101), a door (102) is provided on one side of the outer shell (101), a control device (103) is provided on one side of the outer shell (101), a heating tube (104) is fixedly installed inside the outer shell (101), a ventilation fan (105) is fixedly installed on the back of the outer shell (101), two first placement trays (106) are fixedly installed inside the outer shell (101), two temperature and humidity sensors (107) are fixedly installed inside the outer shell (101), an ultrasonic humidifier (108) is fixedly installed at the bottom of the inner wall of the outer shell (101), and a heat insulation plate (109) is fixedly installed inside the outer shell (101) and between the two first placement trays (106). The cooling unit (200) includes a refrigerator (201), which is fixedly installed inside the outer casing (101). A cooling plate (202) is fixedly installed at the output end of the refrigerator (201). A fine bristle (204) is fixedly installed at the bottom of the cooling plate (202). A condensate drain pipe (203) is fixedly installed inside the outer casing (101) and below the fine bristle (204). One end of the condensate drain pipe (203) is fixedly connected to an integrated pipe (205). A conduit (206) is fixedly connected to one side of the integrated pipe (205). A water tank (207) is threadedly connected to the bottom of the conduit (206).

2. The temperature and humidity controllable curing chamber for detecting cement setting time according to claim 1, characterized in that, The output terminal of the temperature and humidity sensor (107) is electrically connected to the control device (103), and the output terminal of the control device (103) is electrically connected to the refrigerator (201), the heating tube (104), and the ultrasonic humidifier (108).

3. The temperature and humidity controllable curing chamber for detecting cement setting time according to claim 1, characterized in that, The output end of the ultrasonic humidifier (108) is fixedly installed inside the two first placement plates (106), and the outer wall of the heat insulation plate (109) is fixedly installed with the first placement plates (106).

4. The temperature and humidity controllable curing chamber for testing cement setting time according to claim 1, characterized in that, The water tank (207) is fixedly connected to the input end of the ultrasonic humidifier (108), and a water filling pipe is fixedly connected to the top of the water tank (207).

5. A temperature and humidity controllable curing chamber for detecting cement setting time according to claim 1, characterized in that, An inclined plate is fixedly installed inside the condensate drain pipe (203), and a dustproof net is fixedly installed on one side of the ventilation fan (105).

6. The temperature and humidity controllable curing chamber for detecting cement setting time according to claim 1, characterized in that, A cooling fan is fixedly installed on the back of the refrigerator (201), and the control device (103) is composed of a display and control buttons.

7. A temperature and humidity controllable curing chamber for detecting cement setting time according to claim 1, characterized in that, A handle is fixedly installed on one side of the door (102), and a magnet is fixedly installed on one side of the door (102). The door (102) is magnetically attracted to the outer shell (101) through the magnet.

Citation Information

Patent Citations

  • Temperature and humidity control cement curing box for building detection

    CN222079599U