Novel multi-energy waste heat recovery and steam production device

Abstract

The utility model discloses a novel multi-energy waste heat recovery and steam production device, which belongs to the technical field of waste heat recovery and comprises a box shell, a waste heat pump, a steam generator and a secondary compressor are arranged in the box shell, and a first water pipe, a second water pipe, a third water pipe and a fourth water pipe are connected between the waste heat pump and the box shell. A vacuumizing pipe, a water injection pipe and a blow-off pipe are connected between the steam generator and the box shell, a steam outlet pipe is connected between the second-stage compressor and the box shell, a steam valve is installed at the outer end of the steam outlet pipe, and a fifth water pipe and a sixth water pipe are connected between the steam generator and the waste heat pump. The medium-pressure steam is prepared through two times of compression, but the steam required by the process is prepared by using the energy efficiency of first-stage compression, so that the steam cost is saved, and the effects of energy conservation and emission reduction are achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a waste heat recovery technical field more specifically, relate to a new -type multi -energy waste heat recovery steam device. BACKGROUND

[0002] In today's industrial production and energy utilization field, efficient use of energy and energy saving and emission reduction have become the core issue of global concern, with the acceleration of industrialization, a large amount of waste heat resources is produced in various industrial production processes, these waste heat usually exists in the form of hot water, steam or high temperature flue gas, contains huge energy, however, for a long time, due to the limitation of technical means or the lack of attention to waste heat recovery, a large amount of valuable waste heat resources has not been fully and effectively utilized, but is directly discharged into the environment, not only causes great waste of energy, but also aggravates greenhouse gas emissions, causes negative effects on the ecological environment.

[0003] The existing multi -energy waste heat recovery steam device still has some deficiencies in technical implementation, for example, part of the device can only realize simple waste heat recovery and single stage compression to produce steam, it is difficult to meet the demand of medium pressure steam, and the energy efficiency is low, the potential of waste heat resources cannot be fully utilized, some devices have defects in system integration, running stability and automatic control, leading to high equipment operation cost, difficult maintenance, limiting its large -scale popularization and application.

[0004] Therefore, the present application provides a new multi -energy waste heat recovery steam device to solve the problems in the background art. SUMMARY

[0005] In view of the problems in the prior art, the utility model aims at providing a new multi -energy waste heat recovery steam device, which can realize multi -energy waste heat recovery, produce medium pressure steam through twice compression, but the energy efficiency of one stage compression is used, the steam required in the production process is saved, the steam cost is saved, and the effect of energy saving and emission reduction is achieved.

[0006] To solve the above problems, the utility model discloses the following technical scheme: A new -type multi -energy waste heat recovery steam device, including the box shell, the box shell is equipped with waste heat heat pump, steam generator and two stage compressor, waste heat heat pump is connected with the first water pipe, second water pipe, third water pipe and fourth water pipe between the box shell, steam generator and the box shell are connected with the vacuumizing pipe, water injection pipe, blow -off pipe, two stage compressor and the box shell are connected with the steam outlet pipe, the steam valve is installed to the steam outlet pipe outer end, steam generator and waste heat heat pump are connected with the fifth water pipe and the sixth water pipe, steam generator and two stage compressor are connected with the compressor air inlet pipeline, the steam generator outer end is equipped with the access hole and pressure sensor, the box shell upper end is installed electric control cabinet, can realize multi -energy waste heat recovery, make the medium -pressure steam through twice compression, but can use the energy efficiency of primary compression, and the steam required in the preparation process is prepared, and the steam cost is saved, and the effect of energy saving and emission reduction is achieved.

[0007] As a further scheme of the utility model: wherein, the first water pipe, compressor air inlet pipeline, steam outlet pipe and sixth water pipe all are equipped with temperature sensor.

[0008] As a further scheme of the utility model: wherein, the second water pipe, first water pipe, vacuumizing pipe, water injection pipe, blow -off pipe, third water pipe, sixth water pipe and fourth water pipe all are equipped with valve.

[0009] As a further scheme of the utility model: wherein, the first water pipe, third water pipe and sixth water pipe all are equipped with water pump.

[0010] As a further scheme of the utility model: wherein, the first water pipe and steam outlet pipe all are equipped with flow sensor.

[0011] As a further scheme of the utility model: wherein, the second water pipe, first water pipe, vacuumizing pipe, water injection pipe, steam outlet pipe, blow -off pipe, third water pipe and fourth water pipe outer end all are connected with the box shell through flange.

[0012] Compared with the prior art, the utility model has the advantages of:

[0013] 1. The device extracts and raises the low-temperature waste heat generated in industrial production through a waste heat pump, converts the originally wasted waste heat resources into heat energy that can be used to produce steam, and uses a unique two-stage compression process, but cleverly uses system optimization design to achieve the effect of producing process-required medium-pressure steam only with the energy efficiency of a single-stage compression, which greatly reduces energy consumption and significantly saves steam production cost compared with the traditional direct combustion of fossil fuels to produce steam, brings considerable economic benefits to enterprises, reduces the dependence on non-renewable energy sources, and helps to alleviate energy supply pressure;

[0014] 2. The device recycles waste heat resources efficiently, avoids direct discharge of a large amount of waste heat into the environment, reduces energy waste and greenhouse gas emissions resulting therefrom, and further reduces the emission of pollutants such as carbon dioxide, sulfur dioxide, and nitrogen oxides from the source, effectively reduces air pollution, and has a positive significance for improving the quality of the ecological environment and responding to climate change;

[0015] 3. The device is equipped with a perfect sensor system and an advanced electric control cabinet, realizes real-time monitoring and precise control of the system running state, and the temperature sensor, flow sensor, and pressure sensor are distributed on the key pipelines and equipment, which can timely and accurately collect key parameters such as waste heat hot water temperature, steam flow, and pressure, and transmit the data to the electric control cabinet. The electric control cabinet analyzes and processes the collected data and automatically outputs control signals to accurately adjust the operation of the water pump, valve, and other equipment, ensuring that the entire system is always in the best operating state. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0017] Mark explanation in the figure:

[0018] 1, box shell; 2, valve; 3, second water pipe; 4, first water pipe; 5, water pump; 6, vacuum extraction pipe; 7, water injection pipe; 8, compressor inlet pipeline; 9, steam generator; 10, access hole; 11, two-stage compressor; 12, steam outlet pipe; 13, steam valve; 14, blowdown pipe; 15, temperature sensor; 16, flow sensor; 17, flange; 18, waste heat pump; 19, electric control cabinet; 20, pressure sensor; 21, third water pipe; 22, fifth water pipe; 23, sixth water pipe; 24, fourth water pipe. DETAILED DESCRIPTION

[0019] Clearly, the described embodiments are merely a part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments of the present application fall within the scope of the present application.

[0020] In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top / bottom end" and the like indicate the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. In addition, the terms "first", "second" are for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present application, it should be noted that unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "sleeved / connected", "connected" and the like should be broadly understood, for example, "connected" can be fixedly connected, can be detachably connected, or integrally connected; can be mechanically connected, can be electrically connected; can be directly connected, can be indirectly connected through an intermediate medium, and can be connected inside two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances. Embodiments

[0022] Please refer to Figure 1 A new type of multi-energy waste heat recovery steam device, comprising a box shell 1, the box shell 1 is provided with a waste heat pump 18, a steam generator 9 and a two-stage compressor 11, the waste heat pump 18 is connected with the first water pipe 4, the second water pipe 3, the third water pipe 21 and the fourth water pipe 24 between the box shell 1, the steam generator 9 is connected with the vacuumizing pipe 6, the water injection pipe 7, the blowdown pipe 14 between the box shell 1, the two-stage compressor 11 is connected with the steam outlet pipe 12 between the box shell 1, the steam valve 13 is installed at the outer end of the steam outlet pipe 12, the fifth water pipe 22 and the sixth water pipe 23 are connected between the steam generator 9 and the waste heat pump 18, the compressor inlet pipe 8 is connected between the steam generator 9 and the two-stage compressor 11, the steam generator 9 is provided with an access hole 10 and a pressure sensor 20 at the outer end, the electric control cabinet 19 is installed at the upper end of the box shell 1, the multi-energy waste heat recovery can be realized, the medium-pressure steam is made by two-stage compression, but the energy efficiency of one-stage compression is used, the steam required by the process is prepared, the steam cost is saved, and the effect of energy saving and emission reduction is achieved;

[0023] The temperature sensor 15 is arranged on the first water pipe 4, the compressor inlet pipe 8, the steam outlet pipe 12 and the sixth water pipe 23, the valve 2 is arranged on the second water pipe 3, the first water pipe 4, the vacuumizing pipe 6, the water injection pipe 7, the blowdown pipe 14, the third water pipe 21, the sixth water pipe 23 and the fourth water pipe 24, the water pump 5 is arranged on the first water pipe 4, the third water pipe 21 and the sixth water pipe 23, the flow sensor 16 is arranged on the first water pipe 4 and the steam outlet pipe 12, and the outer end of the second water pipe 3, the first water pipe 4, the vacuumizing pipe 6, the water injection pipe 7, the steam outlet pipe 12, the blowdown pipe 14, the third water pipe 21 and the fourth water pipe 24 is connected with the box shell 1 through the flange 17.

[0024] Working principle: the waste heat water enters the waste heat pump 18 through the first water pipe 4, is cooled in the waste heat pump 18 and is discharged from the box shell 1 through the second water pipe 3, the cooling water enters the waste heat pump 18 through the third water pipe 21, so that the waste heat pump 18 forms a pressure difference, so that the hot water is heated to 120 DEG C, enters the steam generator 9 through the sixth water pipe 23, the treated water is injected through the steam generator 9 water injection port, the water in the sixth water pipe 23 is heat exchanged in the steam generator 9, and the water is changed into low-pressure steam through vacuumizing, enters the two-stage compressor 11 through the compressor inlet pipe 8, is further treated in the two-stage compressor 11, so that the low-pressure steam is changed into medium-pressure steam, and is sent to the energy-using equipment through the steam outlet pipe 12, and the system collects data through the temperature sensor 15, the flow sensor 16 and the pressure sensor 20, and outputs a control signal controlled by the electric control cabinet 19 after treatment, compared with the prior art, the waste heat of multiple energy sources can be recycled, the medium-pressure steam is made through twice compression, but the energy efficiency of the energy-using one-stage compression is used, the steam required by the preparation process is saved, the steam cost is saved, and the energy-saving and emission-reducing effect is achieved.

[0025] The above merely describes a preferred specific implementation manner of the utility model; however, the protection scope of the utility model is not limited to this. Any person skilled in the art, according to the technical scheme and the improvement concept of the utility model, makes equivalent replacement or change within the technical range disclosed by the utility model, should be covered in the protection scope of the utility model.

Claims

1. A new multi-energy waste heat recovery steam generating device, comprising a box shell (1), characterized in that, The box shell (1) has a waste heat pump (18), a steam generator (9) and a two-stage compressor (11), the waste heat pump (18) is connected with the box shell (1) through a first water pipe (4), a second water pipe (3), a third water pipe (21) and a fourth water pipe (24), the steam generator (9) is connected with the box shell (1) through a vacuumizing pipe (6), a water injection pipe (7) and a blowdown pipe (14), the two-stage compressor (11) is connected with the box shell (1) through a steam outlet pipe (12), the steam outlet pipe (12) is provided with a steam valve (13) at the outer end, the steam generator (9) is connected with the waste heat pump (18) through a fifth water pipe (22) and a sixth water pipe (23), the steam generator (9) is connected with the two-stage compressor (11) through a compressor inlet pipe (8), the steam generator (9) is provided with an access hole (10) and a pressure sensor (20) at the outer end, and the box shell (1) is provided with an electric control cabinet (19) at the upper end.

2. A new multi-energy waste heat recovery steam generating device according to claim 1, characterized in that, Temperature sensors (15) are arranged on the first water pipe (4), the compressor inlet pipe (8), the steam outlet pipe (12) and the sixth water pipe (23).

3. A new multi-energy waste heat recovery steam generator according to claim 1, characterized in that, Valves (2) are arranged on the second water pipe (3), the first water pipe (4), the vacuumizing pipe (6), the water injection pipe (7), the blowdown pipe (14), the third water pipe (21), the sixth water pipe (23) and the fourth water pipe (24).

4. A new multi-energy waste heat recovery steam generator according to claim 1, characterized in that, Water pumps (5) are arranged on the first water pipe (4), the third water pipe (21) and the sixth water pipe (23).

5. A new multi-energy waste heat recovery steam generator according to claim 1, characterized in that, Flow sensors (16) are arranged on the first water pipe (4) and the steam outlet pipe (12).

6. A new multi-energy waste heat recovery steam generator according to claim 1, characterized in that, The outer ends of the second water pipe (3), the first water pipe (4), the vacuumizing pipe (6), the water injection pipe (7), the steam outlet pipe (12), the blowdown pipe (14), the third water pipe (21) and the fourth water pipe (24) are connected with the box shell (1) through flanges (17).

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