Building door and window thermal insulation performance detection device

Abstract

The utility model discloses a building door and window thermal insulation performance detection device, which comprises a box body and a refrigeration device, two fixed partition plates are fixedly connected in the middle of the box body at intervals, a placing area is formed between the two fixed partition plates, the box body is divided into a hot chamber and a cold chamber on two sides of the fixed partition plates, and an air heater is arranged on the outer side of the hot chamber. One end of the box body is provided with a placing port corresponding to the placing area; the refrigerating device comprises a refrigerating box, a refrigerant medium and a radiating pipe, the radiating pipe is arranged in the refrigerant medium, the outlet end of the hot chamber is communicated with an inlet of the radiating pipe, an outlet of the radiating pipe is communicated with the cold chamber, and temperature measuring instruments are arranged on the hot chamber and the cold chamber. The placing port and the sealing door are arranged on one side of the box body, rapid switching of a door and window test piece between the fixed partition plates is achieved, the refrigerating device is arranged on the outer side of the box body cold chamber, hot air in the hot chamber exchanges heat with a refrigerant medium through a radiating pipe in the refrigerating box to become cold air, the temperature in the cold chamber is reduced to reach the test temperature, and the test efficiency is improved. And the method has the characteristics of energy conservation, simplicity in operation and the like.

Description

Technical Field

[0001] The utility model relates to the technical field of door and window detection equipment, in particular to a device for detecting the thermal insulation performance of building doors and windows. Background Art

[0002] Building doors and windows are important components of the building's exterior envelope. As an important component of the energy-saving and emission-reduction system, the thermal insulation of building doors and windows affects the quality of the entire building and the utilization efficiency of the entire building's heating energy resources. It is directly related to the user's subjective feelings and is the key to improving user satisfaction. In the prior art, the calibrated hot box method is used to test the thermal insulation performance of windows. By simulating the winter indoor environment in a hot box and the winter outdoor environment in a cold box, the heat transfer coefficient of the test piece can be calculated under stable air temperature and air flow conditions. When testing with this type of testing method, the conditions for the thermal insulation performance testing device of doors and windows are relatively high. It requires a well-sealed door and window test piece placement port. It is necessary to control the heating device through an external power supply to heat the hot box and control the refrigeration device to cool the cold box. During use, there are problems such as high operating costs and inconvenient installation and disassembly of doors and windows. Utility Model Content

[0003] In view of the above problems, the technical problem to be solved by the utility model is to provide a device for detecting the thermal insulation performance of building doors and windows, which is simple to operate and has low operating costs.

[0004] In order to solve the above technical problems, a building door and window thermal insulation performance detection device shown in the utility model comprises a box body and a refrigeration device arranged outside the box body, wherein two upper and lower fixed partitions are fixedly connected at intervals in the middle of the box body, a placement area is formed between the upper and lower fixed partitions, the box body is located on both sides of the fixed partitions respectively, a hot chamber and a cold chamber, a hot air blower is arranged on the outside of the hot chamber, an exhaust port is arranged at the bottom of the outer side of the cold chamber, a placement port is opened at one end of the box body corresponding to the position of the placement area, and a side door is movably arranged on the placement port; an air inlet pipe is arranged at the inlet end of the hot air blower, and an outlet end is connected with the bottom of the hot chamber through a first pipeline, the refrigeration device comprises a refrigeration box and a refrigerant medium and a heat dissipation pipe in the refrigeration box, the heat dissipation pipe is placed in the refrigerant, the outlet end of the hot chamber is connected with the inlet of the heat dissipation pipe, the outlet of the heat dissipation pipe is connected with the cold chamber, and a first temperature measuring instrument and a second temperature measuring instrument are respectively arranged on the hot chamber and the cold chamber.

[0005] Furthermore, the fixed partition is divided into an upper fixed partition and a lower fixed partition, and a card slot is respectively provided at the lower end of the upper fixed partition and the upper end of the lower fixed partition, and a sealing strip is fixedly connected to the inner wall of the card slot.

[0006] Furthermore, a fixing knob is threadedly connected to one side of the slot.

[0007] Furthermore, an air outlet is provided on the outer side of the top end of the heat chamber, and the air outlet is connected to the heat dissipation pipe inlet through a connecting pipe.

[0008] Furthermore, an air inlet is arranged on the outer side of the top end of the cold chamber, and the air inlet is connected to the heat dissipation pipe outlet through a second pipeline.

[0009] Furthermore, a cooling dehumidifier and a sewage outlet are provided on the second pipeline.

[0010] Furthermore, the side door is hinged on the placement opening, and a sealing gasket corresponding to the fixed partition is arranged in the middle of the side door.

[0011] Compared with the prior art, the utility model has the following advantages:

[0012] 1. The present application combines a box body, a fixed partition, and a refrigeration device, and arranges a placement port and a sealed door on one side of the box body corresponding to the fixed partition, so as to realize the rapid switching of the door and window test pieces between the fixed partitions. A refrigeration device is arranged on the outer side of the cold room of the box body, and the hot air in the hot room is converted into cold air through the heat dissipation pipe in the refrigeration box and the refrigerant medium, so that the temperature in the cold room is reduced to the test temperature, which effectively reduces the operating cost and has the characteristics of energy saving and simple operation.

[0013] 2. This application arranges a cooling dehumidifier and a drain outlet on the second pipeline, and effectively removes water vapor in the cold air of the second pipeline through the cooling dehumidifier, thereby avoiding the influence of water vapor condensing into water in the hot chamber on the test results of the door and window specimens. The condensed water in the second pipeline can be discharged in time through the drain outlet to ensure that the cold room is quickly cooled down to the test temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the thermal insulation performance testing device for building doors and windows of the present utility model.

[0015] Figure 2 This is a schematic diagram of the structure of the card slot and the fixed knob of the utility model.

[0016] In the figure: 1, box body, 11, first temperature measuring instrument, 12, hot chamber, 13, placement port, 14, side door, 15, second temperature measuring instrument, 16, cold chamber, 17, exhaust port, 2, fixed partition, 21, slot, 211, fixed knob, 22, hot air blower, 23, first pipeline, 24, air inlet pipe, 25, air outlet, 26, air inlet, 3, refrigeration box, 31, refrigerant medium, 32, heat dissipation pipe, 33, second pipeline. DETAILED DESCRIPTION

[0017] Combine the following Figure 1 , 2 The utility model is further described.

[0018] Example:

[0019] like Figure 1 , 2 The thermal insulation performance testing device for building doors and windows shown in the figure comprises a box body 1 and a refrigeration device arranged outside the box body 1. Two upper and lower fixed partitions 2 are fixedly connected at intervals in the middle of the box body 1. A placement area is formed between the upper and lower fixed partitions 2. The box body 1 is located on both sides of the fixed partition 2, respectively, and a hot chamber 12 and a cold chamber 16 are provided. A hot air blower 22 is provided outside the hot chamber 12, and an exhaust port 17 is provided at the bottom of the outer side of the cold chamber 16. A placement port 13 is opened at one end of the box body 1 corresponding to the placement area. The placement port 13 A side door 14 is movably provided on the top; an air inlet pipe 24 is provided at the inlet end of the hot air blower 22, and the outlet end is connected with the bottom of the hot chamber 12 through a first pipeline 23. The refrigeration device includes a refrigeration box 3 and a refrigerant 31 and a heat dissipation pipe 32 in the refrigeration box 3. The heat dissipation pipe 32 is placed in the refrigerant 31. The outlet end of the hot chamber 12 is connected with the inlet of the heat dissipation pipe 32, and the outlet of the heat dissipation pipe 32 is connected with the cold chamber 16. The hot chamber 12 and the cold chamber 16 are respectively provided with a first temperature measuring instrument 11 and a second temperature measuring instrument 15.

[0020] To facilitate installation and removal of doors and windows, the fixed partition 2 is divided into an upper fixed partition and a lower fixed partition. The lower end of the upper fixed partition and the upper end of the lower fixed partition are respectively provided with a card slot 21, and the inner wall of the card slot 21 is fixedly connected with a sealing strip.

[0021] Preferably, a fixing knob 211 is threadedly connected to one side of the slot 21 .

[0022] In order to achieve rapid cooling of the hot air in the heat chamber, an air outlet 25 is provided on the outer side of the top of the heat chamber 12, and the air outlet 25 is connected to the inlet of the heat dissipation pipe 32 through a connecting pipe.

[0023] In order to achieve cooling in the cold room, an air inlet 26 is provided on the outer side of the top of the cold room 16 , and the air inlet 26 is connected to the outlet of the heat dissipation pipe 32 through a second pipeline 33 .

[0024] In order to remove water vapor in the cold air, a cooling dehumidifier 34 and a sewage outlet 35 are provided on the second pipeline 33 .

[0025] In order to enhance the sealing effect, the side door 14 is hinged on the placement opening 13 , and a sealing gasket 141 corresponding to the fixed partition 2 is provided in the middle of the side door 14 .

[0026] The use process of the utility model is as follows:

[0027] Before use, open the side door 14, put the door and window to be inspected into the slot 21 at the lower end of the upper fixed partition 2 and the upper end of the lower fixed partition 2 in the middle part of the box body 1 through the placement opening 13, tighten the door and window to be inspected through the fixing knob 211, seal the door and window to be inspected through the sealing strip on the inner wall of the slot 21, close the side door 14 and seal the placement opening 13 through the sealing gasket on the side door 14.

[0028] When in use, the hot air blower 22 is connected to an external power source, and the hot air blower 22 is started to send air to the hot chamber 12 through the first pipeline 23 for heating. When the temperature in the hot chamber 12 rises to the normal indoor temperature in winter, the air outlet 25 is opened, and the hot air in the hot chamber 12 enters the heat dissipation pipe 32 through the connecting pipe, and the heat dissipation pipe 32 exchanges heat with the refrigerant medium 31 in the refrigeration box 3 to form cold air. The cold air is dehumidified by the cooling dehumidifier 34 in the second pipeline 33 and then enters the cold chamber 16 through the air inlet 26 for cooling, until the temperature in the cold chamber 16 drops to the outdoor environment in winter. After the temperature is stable, it is discharged from the exhaust port 17. Under the conditions of stable air temperature and air flow velocity, the temperature is transmitted to the first temperature measuring instrument 11 through the temperature sensor in the hot chamber 12 to read the temperature in the hot chamber 12, and the temperature is transmitted to the second temperature measuring instrument 15 through the temperature sensor in the cold chamber 16 to read the temperature in the cold chamber 16. The heat supply in the hot chamber 12 by the hot air blower 22 minus the heat loss through the outer wall of the hot chamber 12 and the door and window test piece, divided by the product of the area of ​​the door and window test piece and the air temperature difference on both sides, the heat transfer coefficient K value of the test piece can be calculated. During the detection process, the hot air in the hot chamber 12 is converted into cold air through the heat dissipation pipe 32 in the refrigeration box 3 and the refrigerant medium 31 through the refrigeration device, so that the cold chamber is quickly cooled to the test temperature, which effectively reduces the operating cost and has the characteristics of energy saving and simple operation.

[0029] It should be noted that the above embodiments are only used to illustrate the technical solution of the utility model and are not intended to limit it. Although detailed description is given with reference to the embodiments, a person skilled in the art should understand that any modification or equivalent replacement of the technical solution of the utility model does not deviate from the spirit and scope of the technical solution of the utility model and should be included in the scope of the claims of the utility model.

Claims

1. A device for detecting the thermal insulation performance of building doors and windows, comprising a box body (1) and a refrigeration device arranged outside the box body (1), wherein two upper and lower fixed partitions (2) are fixedly connected at intervals in the middle of the box body (1), and a placement area is formed between the upper and lower fixed partitions (2), and the box body (1) is located on both sides of the fixed partition (2) as a hot chamber (12) and a cold chamber (16), respectively, and a hot air blower (22) is arranged outside the hot chamber (12), and an exhaust port (17) is arranged at the bottom end of the outer side of the cold chamber (16), characterized in that: A placement opening (13) is provided at one end of the box body (1) corresponding to the placement area, and a side door (14) is movably provided on the placement opening (13); an air inlet pipe (24) is provided at the inlet end of the hot air blower (22), and the outlet end is connected to the bottom of the heat chamber (12) through a first pipeline (23); the refrigeration device comprises a refrigeration box (3) and a refrigerant (31) and a heat dissipation pipe (32) in the refrigeration box (3); the heat dissipation pipe (32) is placed in the refrigerant (31); the outlet end of the heat chamber (12) is connected to the inlet end of the heat dissipation pipe (32); the outlet end of the heat chamber (12) is connected to the inlet end of the heat dissipation pipe (32); the outlet end of the heat chamber (12) is connected to the cold chamber (16); and a first temperature measuring instrument (11) and a second temperature measuring instrument (15) are provided on the hot chamber (12) and the cold chamber (16), respectively.

2. A building door and window thermal insulation performance detection device according to claim 1, characterized in that: The fixed partition (2) is divided into an upper fixed partition and a lower fixed partition, and a clamping groove (21) is respectively provided at the lower end of the upper fixed partition and the upper end of the lower fixed partition, and a sealing strip is fixedly connected to the inner wall of the clamping groove (21).

3. A building door and window thermal insulation performance detection device according to claim 2, characterized in that: A fixing knob (211) is threadedly connected to one side of the clamping slot (21).

4. A building door and window thermal insulation performance detection device according to claim 1, characterized in that: An air outlet (25) is provided on the outer side of the top end of the heat chamber (12), and the air outlet (25) is connected to the inlet of the heat dissipation pipe (32) through a connecting pipe.

5. A building door and window thermal insulation performance detection device according to claim 1, characterized in that: An air inlet (26) is provided on the outer side of the top end of the cold chamber (16), and the air inlet (26) is connected to the outlet of the heat dissipation pipe (32) through a second pipeline (33).

6. A building door and window thermal insulation performance detection device according to claim 5, characterized in that: The second pipeline (33) is provided with a cooling dehumidifier (34) and a sewage outlet (35).

7. A building door and window thermal insulation performance detection device according to claim 1, characterized in that: The side door (14) is hinged on the placement opening (13), and a sealing gasket (141) corresponding to the fixed partition (2) is arranged in the middle of the side door (14).

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