阅读说明：本技术 一种余热回收供暖系统 (Waste heat recovery heating system ) 是由 尹兴乾 于 2021-05-07 设计创作，主要内容包括：本发明公开了一种余热回收供暖系统,包括冷却水管道、自来水管道与换热器,所述冷却水管道与自来水管道均贯穿于换热器,所述换热器用于冷却水管道与自来水管道的热传导。本发明通过余热回收供暖系统对冷却水进行了冷却降温,同时对自来水进行加热升温,为氨水生产过程中的冷却水降温,既浪费了热能,同时冷却塔风机在运行过程中,也浪费电能,并且冷却塔风机的工作环境恶劣,故障率也较高,本公司采用将冷却水直接输送到生活区,用于供暖,既解决了余热回收利用问题,同时节约了电能；通过在建筑设备的内容设置储水箱,可对换热升温的热水进行储存,从而方便后续的直接或间接使用,从而获得更适宜的使用温度。(The invention discloses a waste heat recovery heating system which comprises a cooling water pipeline, a tap water pipeline and a heat exchanger, wherein the cooling water pipeline and the tap water pipeline penetrate through the heat exchanger, and the heat exchanger is used for heat conduction between the cooling water pipeline and the tap water pipeline. The waste heat recovery heating system cools cooling water, and simultaneously heats tap water to raise the temperature, so that the cooling water in the ammonia water production process is cooled, heat energy is wasted, and meanwhile, the cooling tower fan wastes electric energy in the operation process, the working environment of the cooling tower fan is severe, the failure rate is high, the cooling water is directly conveyed to a living area for heating, the waste heat recovery problem is solved, and the electric energy is saved; the water storage tank is arranged in the building equipment, so that hot water heated by heat exchange can be stored, subsequent direct or indirect use is facilitated, and more appropriate use temperature is obtained.)

1. The utility model provides a waste heat recovery heating system, includes cooling water pipeline, water supply pipeline and heat exchanger, its characterized in that: the cooling water pipeline and the tap water pipeline both penetrate through the heat exchanger, and the heat exchanger is used for heat conduction between the cooling water pipeline and the tap water pipeline;

the cooling water pipeline is communicated with a tap water source through a flow rate pump, the cooling water pipeline is communicated with a cooling water inlet, the cooling water pipeline is connected to a cooling water outlet after passing through a heat exchanger, the tap water pipeline is connected to a water storage tank after passing through the heat exchanger, and a heat insulation structure is arranged on the water storage tank;

the water storage tank is provided with two groups of water using pipelines, wherein one group of water using pipelines is used for conveying water to a water using end of an office building through a booster pump, the other group of water using pipelines is used for conveying water to a water inlet end of a water mixing valve through the booster pump, the other group of water inlet end of the water mixing valve is connected to a tap water source, and a water outlet end of the booster pump is connected to a water using end of the office building;

the flow rate pump is used for adjusting the flow rate of tap water flowing from a tap water source through the heat exchanger, better heat exchange efficiency is obtained by adjusting the flow rate of the tap water and cooling water passing through the heat exchanger, the booster pump is used for controlling the water outlet flow rate of the water storage tank, and the water mixing valve is used for mixing water and adjusting the temperature of the tap water and the water outlet of the water storage tank;

the method also comprises the following waste heat recovery process:

s1, cooling water with heat enters the interior of the building from a cooling water inlet, and meanwhile tap water also enters the interior of the building after being controlled by the flow rate of the flow rate pump;

s2, the cooling water and the tap water pass through the heat exchanger simultaneously, so that heat conduction is carried out through a heat exchange structure in the heat exchanger, the heat of the cooling water is further conducted into the tap water, and the temperature of the tap water is increased;

s3, introducing the tap water subjected to temperature conduction into the water storage tank and storing the tap water in the water storage tank, and conveying the cooling water subjected to temperature conduction from the interior of the building through the self-cooling water outlet after the temperature of the cooling water is reduced;

s4, two groups of hot water outlets are arranged on the water storage tank, and hot water stored in the water storage tank is discharged from the two groups of hot water outlets through a booster pump;

and S5, directly using the hot water in one group of hot water outlets, and mixing the hot water in the other group of hot water outlets with tap water through a water mixing valve for use.

2. A heat recovery heating system as claimed in claim 1, characterized in that: the cooling water inlet is connected to the cooling water tank through a pipeline, and the cooling water outlet is connected to the production equipment through a pipeline.

3. A heat recovery heating system as claimed in claim 2, characterized in that: the cooling water tank is provided with a flow speed adjusting structure, and the flow speed adjusting structure is used for controlling the flow speed of cooling water passing through the heat exchanger.

4. A heat recovery heating system as claimed in claim 1, characterized in that: the heat conduction of the heat exchanger is to conduct the heat of the cooling water in the cooling water pipeline to the tap water pipeline, and the heat exchanger is a detachable plate heat exchanger.

5. The heat recovery heating system according to claim 4, characterized in that: the heat exchanger comprises a set of corrugated metal plates provided with four corner holes for the passage of two liquids for heat exchange, the metal plates being mounted in a frame having a fixed plate and a movable pressure plate on one side and clamped by clamping bolts, the plates being provided with sealing gaskets for sealing the fluid passages and guiding the fluid alternately to the respective passages, the corrugated plates not only increasing the degree of turbulence but also forming a plurality of support points sufficient to withstand the pressure difference between the media, the metal plates and the movable pressure plate being suspended on an upper guide rod and being positioned by a lower guide rod, and the rod ends being fixed to the support posts.

6. A heat recovery heating system as claimed in claim 1, characterized in that: the heat exchanger and the water storage tank are arranged in a heat exchange chamber of an office building, at least two groups of booster pumps and one group of flow rate pumps are arranged in the heat exchange chamber, and a power distribution chamber for supplying power to internal electric appliances is arranged in the heat exchange chamber.

7. A heat recovery heating system as claimed in claim 6, characterized in that: the flow rate pump and the booster pump are respectively set as a digital display type flow rate pump and a digital display type booster pump.

8. A heat recovery heating system as claimed in claim 1, characterized in that: the water storage tank is set up to stainless steel inner bag heat preservation water tower, insulation construction sets up the insulation cover that the heat preservation material constitutes, the insulation cover sets up the outside at the water storage tank.

Technical Field

The invention belongs to the technical field of waste heat recovery heating systems, and particularly relates to a waste heat recovery heating system.

Background

Ammonia water, also known as Ammoniya water, may be written as NH₃(aq) is an aqueous solution of ammonia, colorless and transparent and having an irritating odor; the industrial ammonia water is an aqueous solution containing 25-28% of ammonia, only a small part of ammonia molecules in the ammonia water react with the water to form monohydrate ammonia which is a weak base only existing in the ammonia water; ammonia is mainly used as an agricultural fertilizer. For the manufacture of ammonium salts, organic synthetic aminating agents, for the production of thermosetting phenolic resins in the chemical industryA catalyst. The said detergent is used in wool spinning, silk and printing and dyeing industry to wash greasy dirt from wool, wool fabric and grey cloth, aid dyeing and regulate pH value. In addition, the method is used for alkalization of pharmacy, leather making, thermos liners (prepared by silver plating solution), rubber and grease.

In the production and processing process of ammonia water, cooling water is often required to be generated through a cooling tower, and the cooling tower is a device which uses water as a circulating coolant, absorbs heat from a system and discharges the heat to the atmosphere so as to reduce the water temperature; the cold is an evaporation and heat dissipation device which utilizes the principle that water is in contact with air in a flowing way to perform heat exchange to generate steam, the steam volatilizes and takes away heat to achieve evaporation and heat dissipation, convection heat transfer, radiation heat transfer and the like to dissipate waste heat generated in industry or refrigeration air conditioners to reduce the water temperature so as to ensure the normal operation of the system, and the device is generally barrel-shaped.

In the ammonia water preparation industry in the prior art, a cooling tower is generally utilized to solve the problem of cooling water heat dissipation in the production process, so that redundant heat energy and electric energy are wasted; through cooling arrangement, for the cooling water cooling in the aqueous ammonia production process, both wasted heat energy, the cooling tower fan is at the operation in-process simultaneously, also wasted the electric energy to the operational environment of cooling tower fan is abominable, and the fault rate is also higher. Therefore, a waste heat recovery heating system is proposed to solve the problems in the prior art.

Disclosure of Invention

The invention aims to provide a waste heat recovery heating system, which aims to solve the problem of cooling water heat dissipation in the production process by generally utilizing a cooling tower in the prior art in the background art, so that redundant heat energy and electric energy are wasted; through cooling arrangement, for the cooling water cooling in the aqueous ammonia production process, both wasted heat energy, the cooling tower fan is at the operation in-process simultaneously, also extravagant electric energy to the operational environment of cooling tower fan is abominable, and the fault rate is also higher problem.

In order to achieve the purpose, the invention adopts the following technical scheme: a waste heat recovery heating system comprises a cooling water pipeline, a tap water pipeline and a heat exchanger, wherein the cooling water pipeline and the tap water pipeline both penetrate through the heat exchanger, and the heat exchanger is used for heat conduction between the cooling water pipeline and the tap water pipeline;

the cooling water pipeline is communicated with a tap water source through a flow rate pump, the cooling water pipeline is communicated with a cooling water inlet, the cooling water pipeline is connected to a cooling water outlet after passing through a heat exchanger, the tap water pipeline is connected to a water storage tank after passing through the heat exchanger, and a heat insulation structure is arranged on the water storage tank;

the water storage tank is provided with two groups of water using pipelines, wherein one group of water using pipelines is used for conveying water to a water using end of an office building through a booster pump, the other group of water using pipelines is used for conveying water to a water inlet end of a water mixing valve through the booster pump, the other group of water inlet end of the water mixing valve is connected to a tap water source, and a water outlet end of the booster pump is connected to a water using end of the office building;

the flow rate pump is used for adjusting the flow rate of tap water flowing from a tap water source through the heat exchanger, better heat exchange efficiency is obtained by adjusting the flow rate of the tap water and cooling water passing through the heat exchanger, the booster pump is used for controlling the water outlet flow rate of the water storage tank, and the water mixing valve is used for mixing water and adjusting the temperature of the tap water and the water outlet of the water storage tank;

the method also comprises the following waste heat recovery process:

s1, cooling water with heat enters the interior of the building from a cooling water inlet, and meanwhile tap water also enters the interior of the building after being controlled by the flow rate of the flow rate pump;

s2, the cooling water and the tap water pass through the heat exchanger simultaneously, so that heat conduction is carried out through a heat exchange structure in the heat exchanger, the heat of the cooling water is further conducted into the tap water, and the temperature of the tap water is increased;

s3, introducing the tap water subjected to temperature conduction into the water storage tank and storing the tap water in the water storage tank, and conveying the cooling water subjected to temperature conduction from the interior of the building through the self-cooling water outlet after the temperature of the cooling water is reduced;

s4, two groups of hot water outlets are arranged on the water storage tank, and hot water stored in the water storage tank is discharged from the two groups of hot water outlets through a booster pump;

and S5, directly using the hot water in one group of hot water outlets, and mixing the hot water in the other group of hot water outlets with tap water through a water mixing valve for use.

Preferably, the cooling water inlet is connected to the cooling water tank through a pipeline, and the cooling water outlet is connected to the production equipment through a pipeline.

Preferably, the cooling water tank is provided with a flow rate adjusting structure for controlling the flow rate of the cooling water passing through the heat exchanger.

Preferably, the heat conduction of the heat exchanger is to conduct the heat of the cooling water in the cooling water pipeline to the tap water pipeline, and the heat exchanger is a detachable plate heat exchanger.

Preferably, the heat exchanger comprises a set of corrugated metal plates provided with four corner holes for the passage of two fluids for heat exchange, the metal plates being mounted in a frame flanked by a fixed plate and a movable pressure plate and clamped by clamping bolts, the plates being provided with sealing gaskets to seal the fluid channels and to direct the fluid alternately to the respective channels, the corrugated plates not only increasing the turbulence level but also forming a plurality of support points sufficient to withstand the pressure difference between the media, the metal plates and the movable pressure plate being suspended on an upper guide bar and being positioned by a lower guide bar, and the bar ends being fixed to the support bars.

Preferably, the heat exchanger and the water storage tank are arranged in a heat exchange chamber of an office building, at least two groups of booster pumps and a group of flow rate pumps are arranged in the heat exchange chamber, and a power distribution chamber for supplying power to internal electrical appliances is arranged in the heat exchange chamber.

Preferably, the flow rate pump and the booster pump are respectively configured as a digital display type flow rate pump and a digital display type booster pump.

Preferably, the storage water tank sets up to stainless steel inner bag heat preservation water tower, insulation construction sets up the insulation cover that the heat preservation material constitutes, the insulation cover sets up the outside at the storage water tank.

The invention has the technical effects and advantages that: compared with the prior art, the waste heat recovery heating system provided by the invention has the following advantages:

the waste heat recovery heating system cools cooling water, and simultaneously heats tap water to raise the temperature, so that the cooling water in the ammonia water production process is cooled, heat energy is wasted, and meanwhile, the cooling tower fan wastes electric energy in the operation process, the working environment of the cooling tower fan is severe, the failure rate is high, the cooling water is directly conveyed to a living area for heating, the waste heat recovery problem is solved, and the electric energy is saved;

the invention utilizes the heat exchange principle to transfer heat to tap water for daily domestic water such as washing and rinsing, and in addition, the water storage tank is arranged in the building equipment, so that hot water heated by heat exchange can be stored, and the subsequent direct use is convenient, or the water mixing valve and the tap water are mixed for use, so that a more proper use temperature is obtained.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.

Drawings

FIG. 1 is a schematic diagram of a prior art structure;

FIG. 2 is a schematic structural diagram of an embodiment of the present invention;

FIG. 3 is a system diagram of a waste heat recovery heating system of the present invention;

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The specific embodiments described herein are merely illustrative of the invention and do not delimit the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The present invention provides embodiments as shown in fig. 1-3:

fig. 1 is a technical scheme in the prior art, in which cooling water flowing out of a cooling water tank is directly cooled by a cooling tower, and fig. 2 is a schematic structural diagram of a waste heat recovery heating system according to the present invention, the cooling water is introduced into building equipment such as an office building, and the waste heat recovery heating system is arranged in the office building to adjust the temperature of the cooling water.

As shown in fig. 3, a waste heat recovery heating system includes a cooling water pipeline, a tap water pipeline and a heat exchanger, wherein the cooling water pipeline and the tap water pipeline both penetrate through the heat exchanger, and the heat exchanger is used for heat conduction between the cooling water pipeline and the tap water pipeline;

the cooling water pipeline is communicated with a tap water source through a flow rate pump, the cooling water pipeline is communicated with a cooling water inlet, the cooling water pipeline is connected to a cooling water outlet after passing through a heat exchanger, the tap water pipeline is connected to a water storage tank after passing through the heat exchanger, and a heat insulation structure is arranged on the water storage tank;

the water storage tank is provided with two groups of water using pipelines, wherein one group of water using pipelines is used for conveying water to a water using end of an office building through a booster pump, the other group of water using pipelines is used for conveying water to a water inlet end of a water mixing valve through the booster pump, the other group of water inlet end of the water mixing valve is connected to a tap water source, and a water outlet end of the booster pump is connected to a water using end of the office building;

the flow rate pump is used for adjusting the flow rate of tap water flowing from a tap water source through the heat exchanger, better heat exchange efficiency is obtained by adjusting the flow rate of the tap water and cooling water passing through the heat exchanger, the booster pump is used for controlling the water outlet flow rate of the water storage tank, and the water mixing valve is used for mixing water and adjusting the temperature of the tap water and the water outlet of the water storage tank;

the waste heat recovery heating system is used for cooling water, heating tap water and heating tap water, cooling the cooling water in the ammonia water production process is achieved, heat energy is wasted, meanwhile, electric energy is wasted in the operation process of a cooling tower fan, the working environment of the cooling tower fan is severe, the fault rate is high, cooling water is directly conveyed to a living area for heating, the problem of waste heat recovery and utilization is solved, and electric energy is saved;

the method also comprises the following waste heat recovery process:

s1, cooling water with heat enters the interior of the building from a cooling water inlet, and meanwhile tap water also enters the interior of the building after being controlled by the flow rate of the flow rate pump;

s2, the cooling water and the tap water pass through the heat exchanger simultaneously, so that heat conduction is carried out through a heat exchange structure in the heat exchanger, the heat of the cooling water is further conducted into the tap water, and the temperature of the tap water is increased;

s3, introducing the tap water subjected to temperature conduction into the water storage tank and storing the tap water in the water storage tank, and conveying the cooling water subjected to temperature conduction from the interior of the building through the self-cooling water outlet after the temperature of the cooling water is reduced;

s4, two groups of hot water outlets are arranged on the water storage tank, and hot water stored in the water storage tank is discharged from the two groups of hot water outlets through a booster pump;

and S5, directly using the hot water in one group of hot water outlets, and mixing the hot water in the other group of hot water outlets with tap water through a water mixing valve for use.

The cooling water inlet is connected to the cooling water tank through a pipeline, and the cooling water outlet is connected to production equipment through a pipeline; the cooling water tank is provided with a flow speed adjusting structure, and the flow speed adjusting structure is used for controlling the flow speed of cooling water passing through the heat exchanger.

The heat conduction of the heat exchanger is to conduct the heat of the cooling water in the cooling water pipeline to the tap water pipeline, and the heat exchanger is a detachable plate heat exchanger.

The heat exchanger comprises a set of corrugated metal plates provided with four corner holes for the passage of two liquids for heat exchange, the metal plates being mounted in a frame having a fixed plate and a movable pressure plate on one side and clamped by clamping bolts, the plates being provided with sealing gaskets for sealing the fluid passages and guiding the fluid alternately to the respective passages, the corrugated plates not only increasing the degree of turbulence but also forming a plurality of support points sufficient to withstand the pressure difference between the media, the metal plates and the movable pressure plate being suspended on an upper guide rod and being positioned by a lower guide rod, and the rod ends being fixed to the support posts.

Advantage of the detachable plate heat exchanger: the design of the plate corrugation aims at the high film heat conductivity coefficient, and the fluid can generate strong turbulent flow at extremely low flow speed, generally speaking, the heat transfer coefficient K value of the plate heat exchanger is within the range of 3000-6000W/m DEG C; on the premise of the same heat transfer quantity, the metal consumption is low, the floor space, the fluid resistance, the cooling water consumption and other project values are reduced, so that the investment cost is greatly reduced; the heat exchanger has compact structure and small volume, and the external surface area of the heat exchanger is small, so the heat loss is small, and the equipment does not need heat preservation; a small space can be combined with a large heat exchange area, and the equipment can provide a maintenance space without an additional dismounting space; the use is safe and reliable, and the combination is flexible and changeable.

The heat exchanger and the water storage tank are arranged in a heat exchange chamber of an office building, at least two groups of booster pumps and one group of flow rate pumps are arranged in the heat exchange chamber, and a power distribution chamber for supplying power to internal electric appliances is arranged in the heat exchange chamber; the flow rate pump and the booster pump are respectively set as a digital display type flow rate pump and a digital display type booster pump; the water storage tank is set up to stainless steel inner bag heat preservation water tower, insulation construction sets up the insulation cover that the heat preservation material constitutes, the insulation cover sets up the outside at the water storage tank.

The heat is transferred to tap water by utilizing a heat exchange principle for daily domestic water such as washing and rinsing, and hot water heated by heat exchange can be stored by arranging a water storage tank in the building equipment, so that the subsequent direct use is facilitated, or the tap water is mixed for use through a water mixing valve, so that a more proper use temperature is obtained; through the setting of mixing the water valve, make things convenient for the inside personnel of architectural equipment to hot water's use more.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.