CN2055581U

CN2055581U - Standard concrete curing box

Info

Publication number: CN2055581U
Application number: CN 89202114
Authority: CN
Inventors: 惠满印; 翟焕瀛
Original assignee: Suzhou Lean Electronic And Electrical Services Department; Institute Of Building Engineering Materials And Products China Academy Of Building Sciences
Current assignee: Suzhou Lean Electronic And Electrical Services Department; Institute Of Building Engineering Materials And Products China Academy Of Building Sciences
Priority date: 1989-03-01
Filing date: 1989-03-01
Publication date: 1990-04-04

Abstract

The utility model relates to a standard concrete curing box, comprising a heating element, a refrigeration element, a moistening element, a ventilator and a curing room. Air is adopted as a heat exchange medium. Temperature and humidity control is combined with the curing room in a whole, forming a cabinet shape. The moistening element adopts an ultrasonic humidifier. The refrigeration element and the heating element adopt a semiconductor electric pile. An air channel is arranged on one side of the curing room. An upper part and a lower part air ports are communicated with the curing room. Moistening, heating and refrigeration are all automatically controlled. The humidity and the temperature are directly and automatically displayed by digits. A water shortage protection device is also arranged. The utility model is in particular suitable for medium and small component factories and building sites with great flowability.

Description

Standard concrete curing box

The utility model belongs to the concrete standard maintenance of equipment.

In building trade, tests such as concrete grade, mortar mark and cement mark all need normal curing equipment, and the normal curing condition of related standards standard defined is: 20 ± 3 ℃ of air dielectric temperature, relative humidity 〉=90%.But regrettably there is no so far a kind of gratifying, advanced technology, as the special purpose test equipment of normal curing, in large-scale component factory and R﹠D institution, generally all have standard curing room now, this equipment is because cost height (approximately needing 12000～13000 yuan) is also impracticable to thousands of medium and small factory for prefabrication of quantity and mobile big construction site, therefore, press for a kind of small-sized concrete standard maintaining box of development.

At present, the simple normal curing case of two classes has appearred on the market, one class is to adopt electrothermal tube as heating unit, directly water is put in test block, this equipment can't guarantee 20 ℃ of constant temperature in summer, though humidity meets the demands, also supervene and make hydrated cementitious product calcium hydroxide shortcoming soluble in water.

Another kind of is can heat and refrigerating normal curing equipment, is to adopt compressor cooling resistance wire heating, pressure water pump or electromagnetism atomizer humidification.The obstruction of compressor pipeline, gas leakage etc. appear in this equipment sometimes, and noise is bigger during maintenance, and compressor operation specially, and the shortcoming of spraying humidification is to waste energy, and curing temperature produces fluctuation and changes, and the phenomenon that the globule washes away the test specimen surface occurs.

The purpose of this utility model is to adopt the ultrasonic humidifier humidification, the heating of semi-conductor electricity composting cold-peace, the cabinet type concrete standard maintaining box of making a kind of humiture uniformity and controlling automatically.

The utility model is made up of humidification element, heating unit, cooling module, ventilator and curing room.

The humidification element is a ultrasonic humidifier 2, is placed directly in the recess of curing room bottom.

Cooling module links to each other with

radiator element

10,12 with heating unit 1 semi-conductor pile 11 two ends, and wherein an end is equipped with cooling blower 9, and heating unit also can be a far-infrared heating tube.

Heating unit, cooling module and ventilator 3 place the ventilation duct 4 on curing room 5 sides, and air channel 4 communicates with curing room 5 with uptake 17 and following air port 18.

Curing room 5 inside are provided with the barrier 19 that can put concrete test block 8, in shell 6 interlayers of curing room 5 and ventilation duct 4 lagging material are housed.

Advantage of the present utility model is as follows:

1, ventilation duct is located at curing room one side, is communicated with curing room by uptake and following air port, can make maintenance room air temperature, humidity uniformity, and have higher stability.Actual measurement is maximum temperature difference≤0.5 ℃ up and down, therefore can eliminate because the inhomogeneous testing error that causes of humiture, and this is particularly important to the cement mark test.

2, with the air be the hydrothermal curing medium, do not need the secondary conversion of energy, power consumption is less and prevented the water-soluble shortcoming of calcium hydroxide in the test specimen.

3, the humidification element adopts ultrasonic humidifier that curing room relative humidity is increased to more than 95%, the shortcoming that can avoid the globule to wash away the test specimen surface, and water consumption is seldom, but add the water life-time service one time, it is little to have a volume, the characteristics that efficient is high.This technology only was used to handle dust in textile industry in the past, and building trade does not have the precedent of application.

4, with the semi-conductor pile as refrigeration, heating unit, avoided compressor obstruction, gas leakage, not easy-maintaining, shortcoming that noise is big.

5 non-stop runs for a long time, long service life, convenient in carrying, general electrician can both keep in repair, and does not need special messenger's nurse on duty, is suitable for medium and small factory for prefabrication and mobile big construction site especially.

Below in conjunction with drawings and Examples the utility model is elaborated:

Accompanying drawing 1 is a structural representation of the present utility model.

Accompanying drawing 2 is the structural representation of ultrasonic humidifier of the present utility model.

Accompanying drawing 3 is the structural representation of the cold element of the utility model semi-conductor electricity composting.

The utility model is used for the ultrasonic humidifier of humidification and is made up of loam cake 13, piezoelectric ceramic piece 14, radio-frequency coil 15 shells 16, utilize piezoelectric ceramic piece under the effect of high frequency alternating electric field, to produce resonance, the principle of high acoustic frequency takes place, and makes water become vaporific ejection.

Ultrasonic humidifier 2 is burnt out when anhydrous, has settled no water protector 7 in the bottom of curing room 5, and it comprises two conducting strips, and when water was arranged at the bottom, water and two conducting strips constituted loops and energising, and ultrasonic humidifier is started working; When the bottom is anhydrous, two electrode outages, ultrasonic humidifier quits work.

The power of the semi-conductor pile that refrigeration, heating unit adopt is between 0.6～1 kilowatt, the piece number of semi-conductor pile can be determined by calculating and testing, be as the criterion to satisfy to freeze summer, the high-power pile of BZT-6425 type is produced in available Tianjin, also can select the pile of other model for use.The available aluminium sheet scatterer of the heat radiation at semi-conductor pile two ends, its area of dissipation can be determined by experiment, and the cooling blower power that cooperates with it is 30～40 watts, and heating can be changed the connector lug of semi-conductor pile mutually as need, can become heating by refrigeration.

The power of ventilator of the present utility model is 20～30 watts, and when adopting far-infrared heating tube as if heating unit, the power of selecting for use is 0.5～1 kilowatt.

If use in summer, when being above standard 20 ℃ of temperature in the curing room, cooling module is opened automatically, and cooled air is sent into curing room by uptake, and when the curing room temperature was lower than 20 ℃, cooling module quit work automatically, so repeatedly circulation.

If use in the winter time, when the curing room temperature was lower than 20 ℃ of standard temperatures, heating unit was opened automatically, and heated air is sent into curing room by air port down, and when the curing room temperature reached 20 ℃, heating unit quit work automatically, so repeatedly circulation.

Claims

1, a kind of concrete standard maintaining box is made up of heating unit, cooling module, humidification element, ventilator and curing room, it is characterized in that:

A, humidification element are ultrasonic humidifiers, are placed directly in curing room undercut place;

B, cooling module are that semi-conductor pile two ends link to each other with radiator element, and wherein an end is equipped with cooling blower;

C, heating unit, cooling module and ventilator place the other ventilation duct of curing room, and ventilation duct communicates with curing room with uptake and following air port.

2, concrete standard maintaining box according to claim 1 is characterized in that: heating unit can be the semi-conductor pile, also can be far-infrared heating tube.

3, concrete standard maintaining box according to claim 1, it is characterized in that: curing room inside is provided with barrier.

4, concrete standard maintaining box according to claim 1 is characterized in that: in the shell interlayer of curing room and ventilation duct lagging material is housed.