A device like a steam mixer?

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Are there any specific manufacturers you would recommend? It’s a relatively simple device. Here is an introduction found online: 1. Overview: The steam jet mixer (also known as a pressure matcher or heat pump) is widely used in industries that rely on steam as a power source, such as textiles, papermaking, the petroleum industry, and thermal power generation. It is primarily used to facilitate steam circulation and increase the pressure of low-pressure steam. 　　Currently, enterprises in these industries often install steam temperature and pressure reduction devices as required by their manufacturing processes, to reduce the parameters of high-quality steam to those suitable for production. Additionally, some equipment generates exhaust gas or flash vapor from condensate water. Although, from the perspective of the first law of thermodynamics (the law of energy conversion and conservation), the temperature and pressure reduction unit results in no loss of energy, with the input energy equal to the output energy, from the standpoint of the second law of thermodynamics (the process of energy transformation into forms of lower quality is an irreversible process), significant irreversible losses occur. That is, the work capacity of the steam after temperature and pressure reduction decreases; due to the low parameters of this steam, it cannot meet the requirements of industrial processes and is thus wasted, leading to higher energy consumption by the equipment and increased costs, which severely limits the competitiveness of the enterprise’s products. In contrast, the steam jet mixer not only recovers the low-quality steam that is otherwise wasted, but also utilizes the high-pressure steam jets to draw in low-pressure steam or flash vapor from condensate, mixing and expanding it so as to raise its parameters to those required for industrial processes as well as for heating, cooling, and other applications. For example: Zhejiang Jinyong Acrylic Fiber Co., Ltd. originally had several sets of temperature and pressure reduction devices, which resulted in significant waste of low-pressure steam. Now, two sets of steam-jet mixers designed and manufactured by our factory have been installed; these mixers utilize high-pressure steam (3.4 Mpa and 430 respectively) to carry out the mixing process℃ ； 3.4 Mpa, 410℃ ； ) Jet aspiration of low-pressure steam (0.3 Mpa and 220 respectively℃ ； 0.65 Mpa, 220℃ ； ) It is thoroughly mixed and expanded to the steam parameters required for industrial production (0.8 Mpa and 280 respectively℃ ； 1. 65Mpa, 240℃ ； It makes full use of the energy lost in low-pressure saturated steam; once put into operation, it performs stably, with all performance indicators such as suction capacity and noise meeting the design requirements, resulting in significant energy savings. cid:image001.gif@01CA58B4.6C847CA0 II. Structure and Mechanism The working principle of a steam jet mixer is to utilize high-pressure steam (primary steam) to drive a jet, which in turn draws in low-pressure steam or flash vapor from condensed water (secondary steam), raising its parameters to the level required by the user. We call this device a steam-jet mixer. Its working mechanism is similar to that of a steam ejector and a water ejector. This mixer has no moving parts, features a simple structure, operates reliably, and can be automatically adjusted. As shown in Figure 1, the steam jet mixer consists of three parts: a spray valve (suction chamber), a mixing element, and a pressure increase valve. After passing through the nozzle, the high-pressure drive steam (primary steam P1) undergoes adiabatic expansion, resulting in a decrease in pressure (which is now lower than the pressure of the steam being entrained). Due to this pressure difference, the low-pressure steam or flash vapor from the condensed water (secondary steam P2) is drawn into the suction chamber. The two streams of steam mix within the mixing chamber and are then pressurized to the desired pressure P3 by an expansion tube. cid:image001.gif@01CA58B4.6C847CA0 III. Main performance indicators (1) Induction coefficient U: u=Gh/Go; it represents the induction capability of the mixer. The U-value depends on the pressure ratio and the driving steam pressure. The higher the outlet steam pressure, the smaller the pressure difference between the inlet and outlet, and the lower the value of the extraction coefficient u. Generally, a U value in the range of 0.3 to 2 is more economical. Gh – Flow rate of the low-pressure steam (secondary steam) injected ； Go – Flow rate of high-pressure drive steam (primary steam). cid:image002.gif@01CA58B4.6C847CA0 cid:image003.gif@01CA58B4.6C847CA0 (II) Model designation: ZPcid:image004.gif@01CA58B4.6C847CA0 ZP – Mixer; 1 – Mixer type (“I” for sub-high pressure, “V” for high temperature and high pressure; medium temperature and medium pressure are not indicated); 2 – Outlet steam flow rate in t/h; 3 – Outlet steam pressure in MPa; 4 – Outlet steam temperature in °C; 5 – High-pressure steam pressure in MPa; 6 – High-pressure steam temperature in °C; 7 – Low-pressure steam pressure in MPa; 8 – Low-pressure steam temperature in °C. Example: ZP15－1.8／350－3.8／440－0.98／290 indicates that the outlet mixed steam flow rate is 15 t/h, the pressure is 1.8 MPa, and the temperature is 350 °C℃ ； The pressure of the high-pressure jet steam is 3.8 MPa, and the temperature is 440℃ ； The pressure of the low-pressure induced steam is 0.98 MPa, and the temperature is 290°C. (III) Scope of application: Medium temperature and medium pressure: High-pressure driving steam pressure ≤ 3.82 MPa, temperature ≤ 450℃ ； Sub-high pressure: High-pressure driving steam pressure ≤ 5.4 MPa, temperature ≤ 485℃ ； High temperature and high pressure: High-pressure driving steam pressure ≤ 10 Mpa, temperature ≤ 540℃ ； (IV) Control mode: There are manual and automatic options, with automatic mode further divided into electric and pneumatic types. cid:image001.gif@01CA58B4.6C847CA0 IV. Installation 1. There should be a straight pipe section on the steam inlet side that is at least 5 times the diameter of the pipe, and a straight pipe section on the outlet side that is at least 10 times the diameter of the pipe. 2. If this device is used in a back-pressure turbine unit, a check valve should be installed at the inlet for the induced steam (secondary steam) to prevent high-pressure steam from flowing back. 3. A drain is installed at the lowest point of each of the high-pressure and low-pressure steam inlets, as well as the mixed steam outlet pipe. 4. The installation and wiring of the trap and thermal control system for this device are to be handled by the user themselves. cid:image001.gif@01CA58B4.6C847CA0 V. Usage 1. Install all components according to the device installation diagram, and tighten all standard fasteners. 2. Before starting up, preheat the pipeline drain with steam first. First, open the ejector steam (secondary steam) valve, then open the high-pressure steam (primary steam) valve. Manually adjust the spray valve and electric control valve using on-site controls or the dashboard until the pressure at the mixer outlet is close to the pressure required by the user and remains stable; after that, the system can be switched to automatic control. (Automatic adjustment is detailed in the instruction manual for the intelligent thermal control cabinet of the steam-jet mixer.) 3. When shutting down the equipment, first close the valve for high-pressure drive steam (primary steam), and then sequentially close the valve for induced steam (secondary steam) and the outlet steam valve. cid:image001.gif@01CA58B4.6C847CA0 VI. Ordering Instructions 1. The following process parameters must be provided when signing the contract: a. Outlet flow rate Q3, outlet pressure P3, and outlet temperature T3 of the mixed steam ； b High-pressure steam (primary steam) pressure p1, temperature T1, flow rate Q1 ； c Low-pressure steam (secondary steam) pressure P2, temperature T2, flow rate Q1 ； The feedwater pressure Pb of the d-cooler, (Pb ≥ P1 + 1.5 MPa), and temperature Tb. 2. Control method: Select the automatic control device as needed. 3. The parts shown in solid lines in the system diagram represent the scope of supply by our factory