CN204829289U - Steam subtracts warm depressurized system - Google Patents

Abstract

The utility model discloses a steam subtracts warm depressurized system, system include vapour turbine system, heat pump set and jet pump, and vapour turbine system includes that steam pipework and exhaust steam congeal the water pipe way, and the jet pump includes the working fluid entry, by the ejection fluid entry with mix the fluid issuing, and working fluid entry and vapour turbine system steam pipework intercommunication are congealed water pipe way intercommunication by ejection fluid entry and exhaust steam, mix fluid issuing and heat pump set intercommunication. The beneficial effects are that: compare with traditional warm depressurized system that subtracts, reduced the power consumption, reached the high -efficient recycle's of the energy -conservation and the energy purpose, making entire system more intensive simultaneously, being convenient for maintain, response heat pump set that can be timely is to the requirement of drive steam.

Description

A steam temperature reduction and pressure reduction system

technical field

The utility model relates to a waste hot water utilization system, in particular to a system for lowering the temperature and pressure of steam.

Background technique

Absorption heat pump recovers waste water for centralized heating system. The driving source used is power plant steam. However, power plant steam has problems of high pressure and high temperature. At present, temperature and pressure reducers are usually used to reduce the temperature and pressure of steam. Specifically, a water pump is used to extract a certain amount of condensed water and steam to mix to achieve the purpose of temperature reduction and pressure reduction, but this method requires additional energy consumption of the water pump to meet the working requirements of the heat pump unit, and the energy loss is still relatively large.

Contents of the invention

The technical problem to be solved by the utility model is to provide a system that can satisfy steam temperature reduction and pressure reduction without consuming additional power consumption.

The technical solution adopted in the utility model is: a steam cooling and decompression system, the system includes a steam turbine system, a heat pump unit and a jet pump, the steam turbine system includes a steam pipeline and a steam-deficient condensate pipeline, and the jet pump It includes a working fluid inlet, an ejected fluid inlet and a mixed fluid outlet, the working fluid inlet is connected with the steam pipeline of the steam turbine system, the ejected fluid inlet is connected with the exhaust steam condensate pipeline, and the mixed fluid outlet is connected with the heat pump Crew connected.

It also includes condensing equipment, and the exhausted steam from the steam turbine system enters the condensing equipment after passing through the exhausted steam condensate pipeline.

The inlet of the ejected fluid is connected to the exhaust steam condensate pipeline of the steam turbine system and the condensing equipment.

It also includes a water tank, the condensed water from the condensing equipment enters the water tank, and the inlet of the ejected fluid is connected to the water tank.

Including heat exchange equipment and a steam-water heat exchanger; the high-temperature condensed water from the steam-water heat exchanger and the high-temperature condensed water from the heat pump unit merge into the heat exchange equipment for heat exchange. Roads converge.

It also includes a waste water pipeline, which enters the condensing equipment for primary heat exchange after coming out of the heat pump unit, enters the heat exchange equipment for secondary heat exchange, and then enters the heat pump unit driven by the waste water circulation pump.

It also includes the primary network water pipeline. The primary network return water is driven by the primary network supply and return water pump to enter the heat pump unit for primary heat exchange, and then enters the steam-water heat exchanger for secondary heat exchange, and finally provides primary network water supply.

The beneficial effects of the utility model are: compared with the traditional temperature reduction and pressure reduction system, the power consumption is reduced, and the purpose of energy saving and energy efficient recycling is achieved. At the same time, it makes the whole system more intensive, easy to maintain, and can respond to the requirements of the heat pump unit for driving steam in a timely manner.

Description of drawings

Fig. 1 is the schematic diagram of the steam temperature reduction and pressure reduction system of the utility model embodiment 1;

Fig. 2 is a schematic diagram of the steam temperature and pressure reduction system in Embodiment 2 of the present utility model.

In the picture:

1. Steam-water heat exchanger 2. Primary network supply and return water pump 3. Heat pump unit

4. Condensing equipment 5. Waste water circulation pump 6. Heat exchange equipment

7. Steam turbine system 8. Water collection tank 9. Jet pump.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is described in further detail:

As shown in Figure 1, the utility model is a steam cooling and decompression system, including steam-water heat exchanger 1, primary network supply and return water pump 2, heat pump unit 3, condensing equipment 4, waste water circulation pump 5, heat exchanger 6. Steam turbine system 7, water collection tank 8, jet pump 9 and corresponding valves on the pipeline, temperature control alarm system; A jet pump 9 is installed on the pipeline between them. The jet pump 9 includes a working fluid inlet, an injected fluid inlet and a mixed fluid outlet. The working fluid inlet communicates with the steam pipeline of the steam turbine system 7, and the injected fluid The inlet is connected with the exhaust steam condensate pipeline, and the mixed fluid outlet is communicated with the heat pump unit 3; the exhaust gas from the steam turbine system 7 enters the condensing equipment 4 through the exhaust steam condensate pipeline; the ejected fluid inlet is connected to the steam turbine system 7 and the exhausted steam condensate pipeline of the condensing equipment 4; the high-temperature condensed water from the steam-water heat exchanger 1 and the high-temperature condensed water from the heat pump unit 3 merge into the heat exchange equipment 6 for heat exchange. The condensate pipelines converge; the waste water pipelines come out of the heat pump unit 3 and then enter the condensing equipment 4 for a heat exchange, enter the heat exchange equipment 6 for a second heat exchange, and then enter the heat pump unit 3 driven by the waste water circulating pump 5; once The network return water is driven by the primary network supply and return water pump 2 to enter the heat pump unit for primary heat exchange, then enters the steam-water heat exchanger 1 for secondary heat exchange, and finally provides primary network water supply.

As shown in Figure 2, the condensed water from the condensing device 4 enters the water tank 8 through the pipeline, and the inlet of the ejected fluid is connected to the water tank 8. The other structures and principles are the same as those in Figure 1, and will not be repeated here.

Compared with the traditional temperature reduction and pressure reduction method, the present invention reduces power consumption and achieves the purpose of energy saving and energy efficient recovery and utilization. At the same time, it makes the whole system more intensive, easy to maintain, and can respond to the requirements of the heat pump unit for driving steam in a timely manner.

Claims (7)

1. A steam temperature and pressure reduction system, characterized in that the system includes a steam turbine system (7), a heat pump unit (3) and a jet pump (9), and the steam turbine system (7) includes a steam pipeline and exhaust steam condensing water pipeline, the jet pump (9) includes a working fluid inlet, an injected fluid inlet and a mixed fluid outlet, the working fluid inlet communicates with the steam pipeline of the steam turbine system (7), and the injected fluid inlet communicates with the exhaust The condensed water pipeline is connected, and the mixed fluid outlet is connected with the heat pump unit (3). 2. The steam temperature reduction and pressure reduction system according to claim 1, characterized in that it also includes a condensing device (4), and the exhaust steam coming out of the steam turbine system (7) enters the condensing device through the exhaust steam condensate pipeline ( 4). 3. The steam temperature reduction and pressure reduction system according to claim 2, characterized in that, the inlet of the injected fluid is connected to the steam turbine system (7) and the exhaust steam condensate pipeline of the condensing equipment (4). 4. The steam temperature and pressure reduction system according to claim 2, characterized in that it also includes a water tank (8), the condensed water from the condensing device (4) enters the water tank (8), and the ejected The fluid inlet is connected to the tank (8). 5. The steam temperature and pressure reduction system according to claim 2, characterized in that it comprises heat exchange equipment (6) and a steam-water heat exchanger (1); the steam-water heat exchanger (1) The high-temperature condensed water coming out and the high-temperature condensed water coming out of the heat pump unit (3) merge into the heat exchange equipment (6) for heat exchange, and merge with the exhaust steam condensate pipeline after cooling down. 6. The steam temperature reduction and pressure reduction system according to claim 5, characterized in that it also includes a waste water pipeline, and the waste water pipeline enters the condensing equipment (4) in sequence after coming out of the heat pump unit (3) for a heat exchange , into the heat exchange equipment (6) for secondary heat exchange, and then driven by the waste water circulation pump (5) to enter the heat pump unit (3). 7. The steam temperature reduction and pressure reduction system according to claim 6, characterized in that it also includes a primary network water pipeline, and the primary network return water is driven by the primary network supply and return water pump (2) to enter the heat pump unit for primary heat exchange, and then Enter the steam-water heat exchanger (1) for secondary heat exchange, and finally provide primary network water supply.