Heat exchange device suitable for direct-cooling and direct-heating rack

Abstract

The utility model discloses a heat exchange device suitable for a direct cooling and direct heating rack. The heat exchange device comprises a water pump, a first water pipe, a second water pipe, a heat exchange pipe, a box body, a box cover, a three-way valve, a one-way valve, a first inlet and outlet, a second inlet, a third outlet, a plurality of connecting pipes, an electromagnetic tee joint and fastening bolts. The box body and the box cover are fixed together through fastening bolts, the box body is provided with a liquid injection port, a liquid discharge port, a first water inlet / outlet and a second water inlet / outlet, and the heat exchange tube is installed in the box body; the water pump is connected with the first water inlet / outlet of the box body through a first water pipe and connected with the second water inlet / outlet of the box body through a second water pipe; the electromagnetic tee joint comprises a first electromagnetic tee joint and a second electromagnetic tee joint. The device has the function of a partial condenser in a rack refrigeration mode, the output power of a condensation fan can be reduced, and the energy consumption is reduced; the flow direction of the refrigerant can be intelligently switched through the electromagnetic tee joint; and the heat energy in the refrigeration mode is recycled, so that the output power of electric heating in the heating mode is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of air conditioning equipment, in particular to a heat exchange device suitable for a direct cooling and direct heating stand. Background Art

[0002] The existing direct cooling and direct heating detection device uses a water tank as a heat exchanger in the heating test mode, and only heats the exchange medium through electric heating to ensure the reasonable temperature of the exchange medium. The heat source is single; therefore, it is necessary to design a device that provides multiple heat sources for the exchange medium to save energy. Utility Model Content

[0003] The purpose of the utility model is to overcome the above-mentioned deficiencies of the prior art and provide a heat exchange device suitable for a direct cooling and direct heating stand.

[0004] The utility model is realized through the following technical scheme: a heat exchange device suitable for a direct cooling and direct heating stand, comprising a circulation device and a temperature exchange device; the circulation device comprises a water pump, a first water pipe and a second water pipe; the temperature exchange device comprises a heat exchange pipe, a box body, a box cover, a three-way valve, a one-way valve, a first inlet and outlet, a second inlet and a third outlet, and a plurality of connecting pipes, an electromagnetic tee, and fastening bolts; the box body and the box cover are fixed together by the fastening bolts, the box body is provided with a liquid injection port, a liquid discharge port, a first water inlet and outlet, and a second water inlet and outlet, and the heat exchange pipe is installed in the box body; the water pump is connected to the first water pipe through the first water pipe The electromagnetic tee is connected to the first water inlet and outlet of the box body, and the water pump is connected to the second water inlet and outlet of the box body through the second water pipe; the electromagnetic tee includes a first electromagnetic tee and a second electromagnetic tee; the three interfaces of the first electromagnetic tee are respectively connected to the first inlet and outlet, the first interface of the heat exchange tube, and the first interface of the three-way valve through a connecting pipe; the three interfaces of the second electromagnetic tee are respectively connected to the second inlet, the second interface of the heat exchange tube, and the inlet of the one-way valve through a connecting pipe, the outlet of the one-way valve is connected to the second interface of the three-way valve, and the third interface of the three-way valve is connected to the third outlet.

[0005] The heat exchange tube adopts a heat exchange coil, and the heat exchange coil is spirally arranged along the axial direction of the box body. The heat exchange coil can increase the heat exchange area and improve the heat exchange effect.

[0006] The box is equipped with a liquid level meter, which can facilitate real-time liquid level monitoring of the liquid in the box.

[0007] The box is equipped with a temperature sensor, which can facilitate monitoring of the temperature of the heat exchange medium in the box.

[0008] Compared with the prior art, the advantages of the present invention are:

[0009] 1. This device can play the role of a partial condenser in the bench cooling mode, which can reduce the output power of the condensing fan and reduce energy consumption;

[0010] 2. The device has a simple structure and can intelligently switch the refrigerant flow direction through the electromagnetic three-way;

[0011] 3. This device recycles heat energy in the cooling mode to reduce the output power of electric heating in the heating mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of an embodiment of the utility model.

[0013] The meanings of the reference numerals in the figure are as follows: 1. circulation device; 11. water pump; 12. first water pipe; 13. second water pipe; 2. temperature exchange device; 210. temperature sensor; 211. one-way valve; 212. three-way valve; 213. second connecting pipe; 214. first connecting pipe; 215. third connecting pipe; 216. fourth connecting pipe; 217. fifth connecting pipe; 218. sixth connecting pipe; 221. first electromagnetic three-way; 222. second electromagnetic three-way; 23. heat exchange coil; 24. box cover; 25. fastening bolt; 26. filling port; 27. liquid level gauge; 28. drain port; 29. ​​box body; 3. third outlet; 4. first inlet and outlet; 5. second inlet. DETAILED DESCRIPTION

[0014] The content of the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0015] Example

[0016] See also Figure 1, is a heat exchange device suitable for direct cooling and direct heating bench, including a circulation device 1 and a temperature exchange device 2; the circulation device 1 includes a water pump 11, a first water pipe 12 and a second water pipe 13; the temperature exchange device 2 includes a heat exchange pipe, a box body 29, a box cover 24, a three-way valve 212, a one-way valve 211, a first inlet and outlet 4, a second inlet 5, a third outlet 3 and a plurality of connecting pipes, an electromagnetic tee, and a fastening bolt 25; the box body 29 and the box cover 24 are fixed together by fastening bolts 25, and the box body 29 is provided with a liquid injection port 26, a liquid discharge port 28, a first water inlet and outlet and a second water inlet and outlet, and the heat exchange pipe is installed in the box body 29; the water pump 11 is connected to the first water pipe 12 is connected to the first water inlet and outlet of the box body 29, and the water pump 11 is connected to the second water inlet and outlet of the box body 29 through the second water pipe 13; the electromagnetic tee includes a first electromagnetic tee 221 and a second electromagnetic tee 222; the three interfaces of the first electromagnetic tee 221 are respectively connected to the first inlet and outlet 4, the first interface of the heat exchange tube, and the first interface of the three-way valve 212 through a connecting pipe; the three interfaces of the second electromagnetic tee 222 are respectively connected to the second inlet 5, the second interface of the heat exchange tube, and the inlet of the one-way valve 211 through a connecting pipe, the outlet of the one-way valve 211 is connected to the second interface of the three-way valve 212, and the third interface of the three-way valve 212 is connected to the third outlet 3.

[0017] The heat exchange tube adopts a heat exchange coil 23, and the heat exchange coil 23 is spirally arranged along the axial direction of the box body 29. The heat exchange coil 23 can increase the heat exchange area and improve the heat exchange effect.

[0018] The box 29 is provided with a liquid level meter 27. The arrangement of the liquid level meter 27 can facilitate real-time liquid level monitoring of the liquid in the box 29.

[0019] The box 29 is equipped with a temperature sensor 210. The temperature sensor 210 can be easily used to monitor the temperature of the heat exchange medium in the box 29.

[0020] In this embodiment, the connecting pipes include a first connecting pipe 214, a second connecting pipe 213, a third connecting pipe 215, a fourth connecting pipe 216, a fifth connecting pipe 217 and a sixth connecting pipe 218. The box 29 contains a medium for heat exchange; when the rack is in the cooling mode, the temperature of the liquid is increased by heat exchange with the liquid in the box to reduce the electric heating output power of the rack in the heating mode to achieve energy saving.

[0021] The first interface of the first electromagnetic tee 221 is connected to the first inlet and outlet 4 through the first connecting pipe 214, the second interface of the first electromagnetic tee 221 is connected to the first interface of the heat exchange coil 23, and the third interface of the first electromagnetic tee 221 is connected to the first interface of the three-way valve 212 through the second connecting pipe 213. The first interface of the second electromagnetic tee 222 is connected to the second inlet 5 through the third connecting pipe 215, the second interface of the second electromagnetic tee 222 is connected to the second interface of the heat exchange coil 23, and the third interface of the second electromagnetic tee 222 is connected to the inlet of the one-way valve 211 through the fourth connecting pipe 216. The outlet of the one-way valve 211 is connected to the second interface of the three-way valve 212 through the fifth connecting pipe 217, and the third interface of the three-way valve 212 is connected to the third outlet 3 through the sixth connecting pipe 218.

[0022] In this embodiment, there are three refrigerant flow paths:

[0023] The first path is: first inlet and outlet 4 → first connecting pipe 214 → first electromagnetic three-way 221 → heat exchange coil 23 → second electromagnetic three-way 222 → fourth connecting pipe 216 → one-way valve 211 → fifth connecting pipe 217 → three-way valve 212 → sixth connecting pipe 218 → third outlet 3;

[0024] The second path is: the first inlet and outlet 4 → the first connecting pipe 214 → the first electromagnetic three-way 221 → the second connecting pipe 213 → the three-way valve 212 → the sixth connecting pipe 218 → the third outlet 3;

[0025] The third path is: the second inlet 5 → the third connecting pipe 215 → the second electromagnetic tee 222 → the heat exchange coil 23 → the first electromagnetic tee 221 → the first connecting pipe 214 → the first inlet and outlet 4 .

[0026] When the rack is in cooling mode, the first electromagnetic tee 221 and the second electromagnetic tee 222 are adjusted to allow the refrigerant to flow along the first path, and at the same time, the heat exchange medium in the box 29 is heated. The temperature sensor 210 is used to determine whether the heat exchange medium has reached the set temperature. When the set temperature is reached, the first electromagnetic tee 221 is adjusted to allow the refrigerant to flow along the second path. When the rack is in heating mode, the first electromagnetic tee 221 and the second electromagnetic tee 222 are adjusted to allow the refrigerant to flow along the third path, and the electric heating works to heat the heat exchange medium in the box 29 to the set temperature. During the entire cooling and heating mode cycle, the waste heat of refrigeration provides preheating for the heat exchange medium in the heating circuit to reduce the output power of the electric heating to reduce energy consumption.

[0027] The characteristic of this device is that the direct cooling and direct heating stand can continuously heat the heat exchange medium in the heating mode to a certain temperature in the cooling mode, and reduce the electric heating output power in the heating mode to achieve the purpose of reducing energy consumption.

[0028] In this embodiment, the second water pipe 13 is a water inlet pipe, the first water pipe 12 is a water return pipe, the second water pipe 13 is tangentially connected to the bottom of the box body 29, and the first water pipe 12 is connected to the upper part of the box body 29.

[0029] The above detailed description is a specific description of a feasible embodiment of the utility model. The embodiment is not intended to limit the patent scope of the utility model. Any equivalent implementation or modification that does not deviate from the utility model should be included in the patent scope of this case.

Claims

1. A heat exchange device suitable for direct cooling and direct heating racks, characterized in that: It comprises a circulation device and a temperature exchange device; the circulation device comprises a water pump, a first water pipe and a second water pipe; the temperature exchange device comprises a heat exchange pipe, a box body, a box cover, a three-way valve, a one-way valve, a first inlet and outlet, a second inlet and a third outlet, and a plurality of connecting pipes, an electromagnetic tee, and fastening bolts; the box body and the box cover are fixed together by the fastening bolts, the box body is provided with a liquid injection port, a liquid discharge port, a first water inlet and outlet, and a second water inlet and outlet, and the heat exchange pipe is installed in the box body; the water pump is connected to the first water inlet and outlet of the box body through the first water pipe, and the water The pump is connected to the second water inlet and outlet of the box through the second water pipe; the electromagnetic tee includes a first electromagnetic tee and a second electromagnetic tee; the three interfaces of the first electromagnetic tee are respectively connected to the first inlet and outlet, the first interface of the heat exchange tube, and the first interface of the three-way valve through connecting pipes; the three interfaces of the second electromagnetic tee are respectively connected to the second inlet, the second interface of the heat exchange tube, and the inlet of the one-way valve through connecting pipes, the outlet of the one-way valve is connected to the second interface of the three-way valve, and the third interface of the three-way valve is connected to the third outlet.

2. The heat exchange device suitable for direct cooling and direct heating rack according to claim 1, characterized in that: The heat exchange tube adopts a heat exchange coil, and the heat exchange coil is spirally arranged along the axial direction of the box body.

3. The heat exchange device suitable for direct cooling and direct heating stand according to claim 1, characterized in that: The box body is equipped with a liquid level meter.

4. The heat exchange device suitable for direct cooling and direct heating stand according to claim 1, characterized in that: The box is equipped with a temperature sensor.

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