Energy-saving heat pre-exchange device

Abstract

The utility model relates to the technical field of energy-saving heat exchange equipment, and discloses an energy-saving heat pre-exchange device, which is characterized in that a circulating heating structure is arranged, heated hot materials enter a spiral coil pipe in the circulating heating structure, new materials enter a conveying pipeline in the circulating heating structure, and in the process, the new materials enter the spiral coil pipe in the circulating heating structure. The new materials absorb heat of the hot materials, so that the heat of the new materials is increased, and meanwhile the heat of the hot materials is reduced. And a new material can be preheated in the circulating process of the hot material, and meanwhile, the hot material is precooled. And when the hot material enters the cooler after being precooled, the temperature of the hot material is not too high, so that the energy required by the cooler in the equipment operation process is reduced. And meanwhile, the new material has certain heat when entering the heater after being preheated, so that the energy used by the heater in the equipment operation process can be reduced. Therefore, the utilization efficiency of energy is improved, and meanwhile, the energy consumption is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of energy -conserving heat exchange equipment, specifically related to a kind of energy -conserving preheat exchange device. BACKGROUND

[0002] In production work, in order to change the physical or chemical properties of material, make it better adapt to subsequent processing or use, often need to use the process flow of heating first and then cooling. The main purpose of this process flow is to heat and cool process, pretreatment is carried out to material, so that subsequent processing or use is more smooth and efficient.

[0003] Among them, material heating process can make material physical or chemical change, heating can also promote chemical reaction in material, improve the yield and rate of reaction. Usually, material heating process will use hot blast furnace or resistance furnace and other equipment. These devices pass through different heating modes, such as burning fuel, electric energy conversion or heat conduction, heat is transferred to material, so that it reaches the required temperature. However, the operation of these heating equipment, often accompanied by a large amount of energy consumption, not only increase the production cost, but also cause adverse effects on the environment.

[0004] Secondly, material cooling can make material restore to room temperature or lower temperature, so as to carry out subsequent processing or use. Usually use cooling tower or water chiller and other equipment for material cooling, these devices pass through different cooling modes, such as water cooling, air cooling or refrigerant circulation, heat is removed from material, so that it restores to room temperature or lower temperature. However, the operation of these devices also needs to consume a large amount of energy, which will further increase production cost and environmental burden. UTILITY MODEL CONTENTS

[0005] The utility model intends to provide a kind of energy -conserving preheat exchange device, can preheat and precooling to material, to save energy.

[0006] To achieve the above object, the utility model adopts the following technical scheme:

[0007] 1) a kind of energy -conserving preheat exchange device, including heat exchanger, heater and cooler, the first feed inlet, second feed inlet, first discharge port and second discharge port are equipped on the heat exchanger, the heater is communicated with the first discharge port and second feed inlet of heat exchanger respectively by pipeline, the cooler is communicated with the second discharge port of heat exchanger by pipeline, the heat exchanger has the circulating heating structure that can carry out cold and hot exchange of material in it.

[0008] The utility model discloses a heat exchanger is equipped with first feed inlet, and it is convenient for material to enter heat exchanger. Subsequently, material passes through the first discharge port of heat exchanger and enters the heater and carries out heating treatment. The hot material after heating enters the circulating heating structure in heat exchanger through the second feed inlet, and simultaneously, the new material enters the circulating heating structure in heat exchanger through the first feed inlet, in this process, the new material absorbs the heat of hot material, thereby increasing the heat of new material, and simultaneously reducing the heat of hot material. Make hot material to be able to preheat new material in the circulation process, and simultaneously precool hot material. When the hot material after precooling enters the cooler through the second discharge port, its temperature will not be too high, thereby reducing the energy required in the equipment operation process in the cooler. Simultaneously, after the new material absorbs the heat of hot material, enters the heater through the second discharge port, has certain heat, therefore can reduce the energy used in the equipment operation process in the heater. Thereby, the energy utilization efficiency is improved, and the energy consumption is reduced.

[0009] 2) The energy-saving preheat exchange device according to 1), wherein:

[0010] The circulating heating structure comprises a conveying pipeline and a spiral coil, the spiral coil is arranged around the conveying pipeline, the conveying pipeline is connected with the first feed inlet and the first discharge port, and the spiral coil is connected with the second feed inlet and the second discharge port.

[0011] In the utility model, the hot material after heating enters the spiral coil through the second feed inlet, and the new material enters the conveying pipeline through the first feed inlet. The spiral coil is arranged around the conveying pipeline, so that the spiral coil is closely combined with the conveying pipeline, thereby increasing the contact area between the hot material in the spiral coil and the new material in the conveying pipeline, and improving the cold and hot transfer efficiency. In this process, the hot material can transfer its heat to the new material, thereby realizing the preheating of the new material. When the precooled hot material enters the cooler through the second discharge port, its temperature will not be too high, thereby reducing the energy required in the equipment operation process in the cooler. Simultaneously, when the preheated new material enters the heater through the first discharge port, it already has certain heat, so the energy used in the equipment operation in the heater can be reduced.

[0012] 3) The energy-saving preheat exchange device according to 1), wherein:

[0013] The first feed inlet and the second feed inlet are arranged on the same side of the heat exchanger, and the first discharge port and the second discharge port are arranged on the same side of the heat exchanger.

[0014] The utility model discloses a first feed inlet and second feed inlet are arranged at the same side of heat exchanger, and first discharge port and second discharge port are arranged at the same side of heat exchanger, make the flow direction of hot material in spiral coil pipe and new material in conveying pipeline same, thereby prolongs the indirect contact time of hot material and new material, makes hot material can more fully exchange heat with new material, thereby improve the cold -heat transfer efficiency.

[0015] 4) The energy-saving pre-heating device according to 1), wherein:

[0016] The heater is provided with a third feed inlet and a third discharge port, the third feed inlet is communicated with the first discharge port, and the third discharge port is communicated with the second feed inlet.

[0017] In the utility model, material enters heat exchanger through the first feed inlet of heat exchanger, enters the heater through the second discharge port, and the material is heated through the heater, and the hot material after heating enters the circulating heating structure through the second feed inlet 5 and exchanges cold -heat with new material, so that the hot material can preheat new material in the circulating process, and precool the hot material. When the hot material is pre-cooled and enters the cooler through the second discharge port, the temperature will not be too high, thereby reducing the energy required in the equipment operation process of the cooler. At the same time, after the new material absorbs the heat of the hot material, the new material enters the heater through the second discharge port, and the new material has a certain heat, so that the energy used in the equipment operation process of the heater can be reduced. Therefore, the energy utilization efficiency is improved, and the energy consumption is reduced.

[0018] 5) The energy-saving pre-heating device according to 1), wherein:

[0019] The heater is provided with a third feed inlet and a third discharge port, the third feed inlet is communicated with the first discharge port, and the third discharge port is communicated with the second feed inlet.

[0020] In the utility model, the heater is connected with the steam generator and the condensate collector, the steam generator can generate high-temperature steam, and the high-temperature steam is used for heating the material. When the high-temperature steam contacts the material, the heat of the steam is transferred to the material, so that the temperature of the material is increased. At the same time, the steam itself is cooled and condensed into water, and the condensed water flows into the condensate collector. In the condensate collector, the condensed water is subjected to preliminary treatment, such as removal of impurities, adjustment of pH value, etc. These treatment steps help to improve the quality of the condensed water, so that the condensed water is more suitable for reuse.

[0021] 6) The energy-saving pre-heating device according to 5), wherein:

[0022] The drain pipe of the condensate collector is communicated with a water injection port of the steam generator.

[0023] In the utility model, the condensate in the condensate collector is directly transported to the water injection port of the steam generator, and the condensate usually still retains certain temperature, so that the heat of the condensate can be fully utilized to reduce the energy required for heating new water.

[0024] 7) The energy-saving pre-heat exchange device according to 1), wherein:

[0025] The cooler is provided with a circulating water inlet and a circulating water outlet, and the cooler is internally provided with a circulating water pipe, and the circulating water inlet and the circulating water outlet are communicated through the circulating water pipe.

[0026] In the utility model, the hot material after pre-cooling is cooled in the cooler, and when the circulating water flows in the circulating water pipe in the cooler, the heat released by the hot material in the cooler is absorbed, so that the temperature of the hot material is reduced.

[0027] 8) The energy-saving pre-heat exchange device according to 7), wherein:

[0028] The cooler is connected with a water cooler through a water pipe, the water outlet of the water cooler is connected with the circulating water inlet, and the backwater outlet of the water cooler is connected with the circulating water outlet.

[0029] In the utility model, the circulating water in the circulating pipeline absorbs heat and then enters the water cooler through the circulating water outlet. In the water cooler, the circulating water exchanges heat with the refrigerant, and the heat absorbed by the circulating water is transferred to the refrigerant, so that the circulating water is cooled to become cold water.

[0030] Compared with the prior art, the utility model has the following technical effects:

[0031] The utility model discloses a circulating heating structure is set up, and the hot material after heating enters the spiral coil pipe in the circulating heating structure, simultaneously, the new material enters the conveying pipeline in the circulating heating structure, in this process, the new material absorbs the heat of hot material, thereby increasing the heat of new material, and simultaneously reducing the heat of hot material. Make hot material to be able to in the circulation process, preheat new material, and precool hot material simultaneously. When hot material precooling enters the cooler, its temperature will not be too high, thereby reducing the energy required in the equipment operation process in the cooler. Simultaneously, new material preheating enters the heater, and already has certain heat, therefore can reduce the energy used in the equipment operation process in the heater. Thereby improve the energy utilization efficiency's simultaneously still reduce energy consumption. BRIEF DESCRIPTION OF DRAWINGS

[0032] Figure 1 It is a schematic view of an energy-saving preheat exchange device of the utility model.

[0033] Figure 2 It is a schematic view of a circulating heating structure in an energy-saving preheat exchange device of the utility model. DETAILED DESCRIPTION

[0034] The following is further explained in detail through specific embodiments:

[0035] The reference signs in the drawings of the specification include: heat exchanger 1, heater 2, cooler 3, first feed inlet 4, second feed inlet 5, first discharge outlet 6, second discharge outlet 7, conveying pipeline 8, spiral coil 9, third feed inlet 10, third discharge outlet 11, fourth feed inlet 12, fourth discharge outlet 13, steam inlet 14, condensate outlet 15, circulating water inlet 16, circulating water outlet 17.

[0036] Embodiment, see Figure 1 As shown in the figure, an energy-saving preheat exchange device in the embodiment includes heat exchanger 1, heater 2 and cooler 3, and the heat exchanger 1 is equipped with first feed inlet 4, second feed inlet 5, first discharge outlet 6 and second discharge outlet 7, the heater 2 is communicated with the first discharge outlet 6 and second feed inlet 5 of heat exchanger 1 through pipeline respectively, the cooler 3 is communicated with the second discharge outlet 7 of heat exchanger 1 through pipeline, and the heat exchanger 1 has circulating heating structure that can exchange hot and cold material.

[0037] In the embodiment, the heat exchanger 1 is provided with the first feeding port 4, so as to facilitate the material to enter the heat exchanger 1. Then, the material enters the heater 2 through the first discharging port 6 of the heat exchanger 1 to be heated. The heated hot material enters the circulating heating structure in the heat exchanger 1 through the second feeding port 5, and the new material enters the circulating heating structure in the heat exchanger 1 through the first feeding port 4. In this process, the new material absorbs the heat of the hot material, thereby increasing the heat of the new material and reducing the heat of the hot material. The hot material can preheat the new material in the circulating process, and precool the hot material. After the hot material is pre-cooled, the temperature of the hot material entering the cooler 3 through the second discharging port 7 is not too high, thereby reducing the energy required in the equipment operation process of the cooler 3. At the same time, after the new material absorbs the heat of the hot material, the new material has a certain heat when entering the heater through the second discharging port, thereby reducing the energy used in the equipment operation process of the heater 2. Therefore, the energy utilization efficiency is improved and the energy consumption is reduced.

[0038] Referring to Figure 2 As shown, the circulating heating structure includes the conveying pipeline 8 and the spiral coil 9. The spiral coil 9 is arranged around the conveying pipeline 8 in the length direction of the conveying pipeline 8. The conveying pipeline 8 is connected with the first feeding port 4 and the first discharging port 6. The spiral coil 9 is connected with the second feeding port 5 and the second discharging port 7.

[0039] In the embodiment, the heated hot material enters the spiral coil 9 through the second feeding port 5, and the new material enters the conveying pipeline 8 through the first feeding port 4. The spiral coil 9 is arranged around the conveying pipeline 8, so that the spiral coil 9 is tightly attached to the conveying pipeline 8, thereby increasing the contact area between the hot material in the spiral coil 9 and the new material in the conveying pipeline 8, and improving the cold and heat transfer efficiency. In this process, the hot material can transfer its heat to the new material, thereby preheating the new material. When the pre-cooled hot material enters the cooler 3 through the second discharging port 7, the temperature of the hot material is not too high, thereby reducing the energy required in the equipment operation process of the cooler 3. At the same time, when the preheated new material enters the heater 2 through the first discharging port 6, the new material has a certain heat, thereby reducing the energy used in the equipment operation process of the heater 2.

[0040] Referring to Figure 1 As shown, the first feeding port 4 and the second feeding port 5 are arranged on the same side of the heat exchanger 1. The first discharging port 6 and the second discharging port 7 are arranged on the same side of the heat exchanger 1.

[0041] The embodiment can prolong the indirect contact time of the hot material and the new material, so that the hot material can exchange heat with the new material more fully, thereby improving the cold and heat transfer efficiency.

[0042] Secondly, the heater 2 is provided with a third inlet 10 and a third outlet 11, the third inlet 10 is communicated with the first outlet 4, and the third outlet 11 is communicated with the second inlet 5. The cooler 3 is provided with a fourth inlet 12 and a fourth outlet 13, the fourth inlet 12 is communicated with the second outlet 7.

[0043] In the embodiment, the material enters the heater 2 through the first inlet 4 of the heat exchanger 1 after the heat exchanger 2, and enters the heater 2 through the second outlet 7. The material is heated by the heater 2, and the heated hot material enters the circulating heating structure through the second inlet 5, and exchanges heat with the new material, so that the hot material can preheat the new material in the circulating process, and precool the hot material. When the pre-cooled hot material enters the cooler 3 through the second outlet 7, the temperature will not be too high, thereby reducing the energy required for the equipment in the cooler 3 to run. At the same time, after the new material absorbs the heat of the hot material, it enters the heater 2 through the second outlet 7, and has a certain amount of heat, so as to reduce the energy used by the equipment in the heater 2 during operation. Therefore, the energy utilization efficiency is improved, and the energy consumption is reduced.

[0044] In addition, the heater 2 is provided with a steam inlet 14 and a condensed water outlet 15, the steam inlet 14 is connected with a steam generator, and the condensed water outlet 15 is connected with a condensed water collector.

[0045] In the embodiment, the heater 2 is connected with a steam generator and a condensed water collector, the steam generator can generate high-temperature steam for heating the material. When the high-temperature steam contacts the material, the heat of the steam is transferred to the material, so that the temperature of the material is increased. At the same time, the steam itself is cooled and condensed into water, and the condensed water flows into the condensed water collector. In the condensed water collector, the condensed water is subjected to preliminary treatment, such as removal of impurities, adjustment of pH value, etc. These treatment steps help to improve the quality of the condensed water, so that it is more suitable for reuse.

[0046] The drain pipe of the condensed water collector is communicated with the water inlet of the steam generator. In the embodiment, the condensed water in the condensed water collector is directly delivered to the water inlet of the steam generator. The condensed water usually still retains a certain temperature, and the heat of the condensed water can be fully utilized to reduce the energy required for heating new water. At the same time, the consumption of fresh water can be reduced, thereby saving cost.

[0047] Referring to Figure 1 As shown, the cooler 3 is provided with a circulating water inlet 16 and a circulating water outlet 17, and the cooler 3 is internally provided with a circulating water pipe, and the circulating water inlet 16 and the circulating water outlet 17 are communicated through the circulating water pipe.

[0048] In this embodiment, the pre-cooled hot material enters the cooler 3 for temperature reduction treatment, and when the circulating water flows in the circulating water pipe in the cooler, the circulating water absorbs the heat released by the hot material in the cooler, thereby reducing the temperature of the hot material. Secondly, by using the circulating water to reduce the temperature of the material, the water consumption can be reduced, and the water resources can be saved.

[0049] In addition, the cooler 3 is connected with a water cooler through a water pipe, and the water outlet of the water cooler is connected with the circulating water inlet 16, and the backwater outlet of the water cooler is connected with the circulating water outlet 17.

[0050] In this embodiment, the circulating water in the circulating pipe absorbs heat and then enters the water cooler through the circulating water outlet 17. In the water cooler, the circulating water exchanges heat with the refrigerant, and the absorbed heat is transferred to the refrigerant, so that the circulating water is cooled to become cold water. Subsequently, the cooled circulating water enters the circulating water pipe in the cooler 3 again through the circulating water inlet 16, and continues to cool the pre-cooled hot material. By using the circulating water to reduce the temperature of the material, the water consumption can be reduced, and the water resources can be saved.

[0051] In this embodiment, the heated hot material enters the spiral coil in the circulating heating structure, and at the same time, the new material enters the conveying pipeline in the circulating heating structure. In this process, the new material absorbs the heat of the hot material, thereby increasing the heat of the new material and reducing the heat of the hot material. The hot material can preheat the new material in the circulating process, and at the same time, the hot material is pre-cooled. When the pre-cooled hot material enters the cooler, its temperature will not be too high, thereby reducing the energy required for the equipment in the cooler to operate. At the same time, the preheated new material enters the heater, which already has a certain amount of heat, so that the energy used by the equipment in the heater during operation can be reduced. Therefore, the energy utilization efficiency is improved while the energy consumption is reduced.

[0052] The above is only an embodiment of the present application, and the specific technical solutions and / or common knowledge of the scheme are not described in detail. It should be noted that for those skilled in the art, without departing from the technical solutions of the present application, a number of modifications and improvements can be made, which should also be considered as the protection scope of the present application, and these will not affect the effect and practicality of the present application. The protection scope of the present application should be subject to the content of its claims, and the specific implementation mode and the like in the specification can be used to explain the content of the claims.

Claims

1. An energy-saving pre-heat exchanger characterized by, The application relates to a heat exchanger, a heater and a cooler, the heat exchanger is provided with a first feeding port, a second feeding port, a first discharging port and a second discharging port, the heater is communicated with the first discharging port and the second feeding port of the heat exchanger through pipelines, and the cooler is communicated with the second discharging port of the heat exchanger through a pipeline.

2. The energy-saving pre-heat exchanger according to claim 1, characterized in that: The circulating heating structure comprises a conveying pipeline and a spiral coil pipe, the spiral coil pipe is arranged around the conveying pipeline along the length direction of the conveying pipeline, the conveying pipeline is communicated with the first feeding port and the first discharging port, and the spiral coil pipe is communicated with the second feeding port and the second discharging port.

3. The energy-saving pre-heat exchanger according to claim 1, characterized in that: The first feeding port and the second feeding port are arranged on the same side of the heat exchanger, and the first discharging port and the second discharging port are arranged on the same side of the heat exchanger.

4. The energy-saving pre-heat exchanger according to claim 1, characterized in that: The heater is provided with a third feeding port and a third discharging port, the third feeding port is communicated with the first discharging port, the third discharging port is communicated with the second feeding port, the cooler is provided with a fourth feeding port and a fourth discharging port, and the fourth feeding port is communicated with the second discharging port.

5. The energy-saving pre-heat exchanger according to claim 1, characterized in that: The heater is provided with a steam inlet and a condensed water outlet, the steam inlet is connected with a steam generator, and the condensed water outlet is connected with a condensed water collector.

6. The energy-saving pre-heat exchanger according to claim 5, characterized in that: The drain pipe of the condensed water collector is communicated with the water injection port of the steam generator.

7. The energy-saving pre-heat exchanger according to claim 1, characterized in that: The cooler is provided with a circulating water inlet and a circulating water outlet, and the circulating water inlet and the circulating water outlet are communicated through a circulating water pipeline.

8. The energy-saving pre-heat exchanger according to claim 7, characterized in that: The cooler is connected with a water cooler through a water pipeline, the water outlet of the water cooler is connected with the circulating water inlet, and the backwater outlet of the water cooler is connected with the circulating water outlet.

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