Selection basis of steam-water mixer

It can be used in air conditioning heating and sanitary hot water heating system, and the mixer is selected according to the steam consumption of actual water flow;

1. When steam is not introduced into the steam-water mixer, the head loss under rated flow is 5mH2O, and the head loss after steam is introduced can be considered as1mh2o;

2. The steam pressure is more than 0.05MPa higher than the water pressure;

3. When using the soda-water mixer in the domestic hot water system, an intermediate water tank should be set, and it is not allowed to directly enter the shower room to prevent accidents;

4. The soda-water mixer is suitable to be installed on the suction side of the water pump.

Water pressure of steam injection gauge of pipeline steam-water mixer

(MPa) steam pressure (MPa) 0.20.30.40.60.810 0.660 91015401950 2350 00.20 820 65438 438+020 1540 1950 2350 0.3/0 940 1540 1950 2350 0.4//0 0 1950 2350 0 0.5//// 1 Conversion coefficient table of steam injection quantity of 890 2350 pipeline soda mixer QSH468103.7 3.710.810.8 Technical parameter project HJ-25 HJ-32 HJ-40 HJ-50 HJ-65 steam.

consume

Kg/hour hot water

yield

Kg/hour steam

consume

Kg/hour hot water

yield

Kg/hour steam

consume

Kg/hour hot water

yield

Kg/hour steam

consume

Kg/hour hot water

yield

Kg/hour steam

consume

Kg/hour hot water

yield

Kg/hour steam

pressure

MPa 0. 1. 1. 1.36 1.976 228 2999 354 44 1.457 5833 54 1.6673 0.2 1.87 265 1.30 1.398 1.4 1.465438

Design choice

HJ submersible soda-water mixer has rated steam consumption index, and one or more submersible soda-water mixers are selected according to actual steam consumption during design. The actual steam consumption can refer to the following formula: (1) For intermittent heating; ② Used for continuous heating. ) determined as follows:

Install and use 1. Can be installed horizontally or vertically, and the steam inlet should be horizontal or downward;

2. Install valves, pressure gauges and thermometers before and after, which is convenient for observing and adjusting the working condition of the mixer;

3. When starting, water should be supplied first and then steam; When stopping, turn off the steam source first, and then cut off the water. The submerged steam-water mixer is a flange interface, and the steam pipe is connected to the water tank (pool) and connected with a flange.

1, a single submerged soda-water mixer should be installed in the middle of the water tank, and when multiple units are used in parallel, they should be evenly arranged;

2. The bottom of the submerged soda mixer is about 200mm away from the bottom of the water tank, so that the water can submerge the mixer 100mm or more;

3. The steam pipe introduced into the water tank should be fixed without looseness;

4. Install a check valve on the steam pipeline near the water source side to prevent water backflow accidents;

5. If there are impurities in the steam pipeline (newly installed pipeline and long-used pipeline), a filter must be installed;