HSCMT

The system is used for measuring the energy production rate in the heat source that produces and supplies district heating. It is installed in the discharge pipeline of the heat source and consists of two flow measurement points and three temperature measurement points. The system is composed of flow measurement units, temperature measurement units, and calculation units. This product, which is currently made, is developed to achieve optimal performance by specializing in Uzbekistan's use environment.

Since heat water is supplied by conventional boiler methods, the supply system is operated in various ways for heating and hot water usage. In practice, because the heat water is consumed in the middle, the supply flow rate and the return flow rate do not match. Therefore, flow meters need to be installed in both the inlet and outlet pipelines. Additionally, since extra water is supplied to compensate for the consumed flow, temperature measurements must be taken for supply, return, and supplementary water temperatures simultaneously.

Here, "M" refers to volumetric flow rate.
In South Korea: There are differences in the thermal capacity coefficient depending on whether the flow measurement unit is installed on the supply line (typically by SK E&S) or the return line (typically by Korea District Heating Corporation). In Uzbekistan: The method of supplying flow differs between winter and summer. During summer, when the supply line may be shut down for maintenance, the system is designed to handle two types of operation modes. The flow and thermal quantity measurement system automatically recognizes and adjusts to the operation mode by reflecting the flow direction (±) and temperature values, allowing for accurate calculation and accumulation of thermal energy based on the operation mode. (Ongoing improvements in installation.)

Mode	Piping Structure	Heat Calculation Method
KDHC (Return)		Q = K *M supply * (T1 – T2) Supply : Forward direction K : Supply Heat conversion factor
SK (Supply)		Q = K *M return * (T1 – T2) Return : Forward direction K : Return Heat conversion factor
UZ1 (Winter)		Q = M supply * (T1 – T3) – M return * (T2 – T3) Supply : Forward direction Return : Forward direction
UZ2 (Summer1)		Q = M supply * (T1 – T3) Supply : Forward direction Return : Not used
UZ3 (Summer2)		Q = M return * (T2 – T3) Supply : Not used Return : Reverse direction
UZ4 (Summer3)		Q = M supply * (T1 – T3) + M return * (T2 – T3) Supply : Forward direction Return : Reverse direction

The velocity distribution of the fluid in the pipeline fluctuates in real-time due to the installation position and pipe structure. To obtain stable flow velocity values despite various changes, the unit is designed with a three-path cross-sectional arrangement.

⋅ Model: UR-1100(Ultrasonic Heat•Flow Meter)
⋅ DN(㎜): (300) 500A ~ 1000A
⋅ Specification

DN(mm)	500	600	700	800	900	1000
PN	16 (1.6 Mpa)
Interplanar Distance(L)	740	840	940	1050	1150	1260
Bolt Standard	M30	M33	M33	M36	M36	M42
Number of Bolts(EA)	20 x 2	24 x 2	24 x 2	24 x 2	28 x 2	28 x 2
Overload Flow Rater Qs (㎥/h)	7100	10200	13900	18100	23000	28300
Maximum Flow Rater (Qp (㎥/h))	3550	5100	6950	9050	11500	14150
Minimum Flow Rater (Qi (㎥/h))	71	102	139	181	230	283
Starting Flow Rater (㎥/h)	0.03	0.03	0.1	0.15	0.2	0.25
Flow Ratio (Qp / Qi)	50
Flow Accuracy	±1% MV
Channel	3
Max. Flow reading (㎥)	99999999(8-Digt.)
Max. Heat reading (Gcal)	99999999(8-Digt.)
Temperature range	0 ~ 130 ℃
Temperature difference range	3 ~ 80 K
Temperature sensor	PT 500 (3 Wire) - Supply, Return, Cold
Pressure range	0 ~ 0.2 Mpa (FS 0.25%) - Supply, Return
Communication Interface	RS-485(Modbus-RTU)
Power	AC220V
Flange Std.	JIS 16K

⋅ Flow Tube Material: STS-304, SS275(flange carbon steel)

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