Different KW split heat pumps for various usage
Adopt a connection type split heat pump air conditioner check valve assembly, including a check valve. There is a section of copper pipe on the left and right sides of the check valve. The outer ends of the check valve are connected with a bidirectional capillary tube; The outer end of the left copper pipe on the left side of the valve is processed into a copper pipe bell mouth, and the left copper pipe is sleeved with a copper pipe receiving interface with internal threads. The copper pipe receiving interface can be pressed tightly on the copper pipe horn after moving , And then can be sleeved with the external threaded liquid valve joint of the outdoor unit of the air conditioner; the outer end of the right copper pipe on the right side of the check valve is welded with a single joint with external thread, which can be connected to the liquid pipe of the outdoor unit of the air conditioner. Butted, the utility model becomes a component connected in series between the liquid valve and the liquid pipe of the outdoor unit of the air conditioner. Adopting the one-way valve assembly of the utility model makes it unnecessary to disassemble the external unit of the air-conditioner for the common operation of replacing the one-way valve in air-conditioning maintenance, do not need to discharge refrigerant, and do not need to use welding tools, so as to save time, labor, and reduce maintenance costs.
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An icing and antifreezing device for a casing heat exchanger and a manufacturing method thereof are adopted, and belong to the field of heat pumps. This
A tube-in-tube heat exchanger icing and anti-freezing device includes a tube-in-tube heat exchanger composed of a concentric inner tube and an outer tube, and a plurality of inflatable elastic balls are arranged at equal intervals in the inner tube. The inflatable elastic ball is a butyl rubber ball. The gas inflated inside the inflatable elastic ball is nitrogen. Furthermore, the inflatable elastic ball is adhered and fixed to the inner tube. The diameter of the inflatable elastic ball is half of the diameter of the inner tube. Furthermore, the total volume of the inflatable elastic ball is 0.4 times the internal volume of the inner tube. It can achieve the effects of not being easy to freeze and anti-freezing, and has a simple structure and low cost.
Specification of Different KW split heat pumps for various usage
| Unit type | SJKRS-28 II/C | SJKRS-36II/C | SJKRS-55 II/C | SJKRS-73 I/C | SJKRS-106 IC | SJKRS-I60II /C | |
| Specifications | 7.5HP | 10HP | 15HP | 20HP | 30HP | 40HP | |
| Power supply | Three-phase five-wire380V/50Hz | ||||||
| Heating mode | Direct heat/cycle type | ||||||
| Standard working condition | Heating capacity( kw ) | 27.5 | 36.7 | 55.1 | 72.8 | 10.6.5 | 155.1 |
| Input Power(kW) | 6.1 | 8.2 | 13.7 | 16.1 | 23.6 | 34.5 | |
| COP | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | 4.5 | |
| Hot Water flow(m³/h) | 0.59 | 0.79 | 1.18 | 1.56 | 2.29 | 3.33 | |
| High temperature condition | Heating capacity kw ) | 23.9 | 28.5 | 51.5 | 59.5 | 89 | 13.1.5 |
| Input Power(kW) | 7.5 | 8.9 | 16.1 | 18.6 | 27.8 | 41.1 | |
| COP | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | 3.2 | |
| Hot Water flow(m³/h) | 0.27 | 0.33 | 0.59 | 0.68 | 1.02 | 1.51 | |
| Low temperature condition | Heating capacity( kw ) | 17.3 | 21.4 | 34.8 | 41.5 | 62.2 | 94.5 |
| Input Power(kW) | 6.2 | 7.6 | 12.4 | 14.8 | 22.2 | 33.8 | |
| COP | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | 2.8 | |
| Hot Water flow(m³/h) | 0.32 | 0.4 | 0.65 | 0.78 | 1.16 | 1.77 | |
| Component Information | Size of water pipe joint | DN20 | DN25 | DN32 | DN40 | ||
| Water heat exchanger | Plate or sleeve heat exchanger | ||||||
| Air Heat Exchanger | Aluminum Fin for copper tube | ||||||
| compressor type | Semi-closed reciprocating | ||||||
| Operation Panel | Color touch screen | ||||||
| Maximum outlet temperature(℃) | 90℃ | ||||||
| Refrigerants | R744 (CO2 ) | ||||||
| Design pressure(MPa) | High side 15, low side 8 | ||||||
| Dimensions (length, width and height mm) | 1450x950x1450 | 1600x950x1500 | 1850x1150x1900 | 2050x1150x1950 | 2670x1410x2150 | 2290x2270x1980 | |
| Noise (dB) | 56 | 59 | 62 | 67 | 70 | 70 | |
| Weight(kg) | 550 | 660 | 780 | 860 | 1180 | 221360 | |
| SCOPE of use | Feed water temperature(℃) | 5~ 40 | |||||
| Feed water pressure | 0.05~ 0.4 | ||||||
| Effluent temperature(℃) | 55~ 90 | ||||||
| Maximum flow | 1.2 | 1.5 | 2.4 | 3.2 | 4.9 | 6.5 | |
| Ambient temperature(℃) | ’-20~43 | ||||||