A new type of heating water heating device

Abstract

The utility model proposes a novel heating water heating device, which relates to the technical field of heating water heating, including three circulating pumps, a steam heater, a water supply tank, two water supply pumps, a condensate heat exchanger and pipelines, wherein the water supply tank, the water supply pump, the circulating pump, the steam heater and the condensate heat exchanger are all connected through pipelines, the water supply tank is connected to the two water supply pumps through pipelines, and the two water supply pumps are connected to the three circulating pumps through pipelines. The utility model has the advantages that the steam condensate generated by the phenol recovery device is led to the heat exchange station to exchange heat with the heating water, which can make full use of the low-level heat energy of the 150°C condensate, reduce the steam consumption of 0.5MPa and 158°C, and if calculated based on one ton of coal producing 5 tons of steam, the boiler coal consumption can be reduced by 6.4 tons per hour, which not only ensures the normal operation of the heating network, but also saves costs, reduces consumption, and reduces the heat load of the circulating water.

Description

Technical Field

[0001] The utility model relates to the technical field of heating water, in particular to a novel heating water heating device. Background Art

[0002] The 70℃ heating return water provided by the third heat exchange station purification unit, methanation unit, sewage treatment unit, sewage reuse unit, plant-wide warehouse, integrated tank area and loading and unloading platform, tank area substation, auxiliary facilities and production management facilities is heated to 95℃ by the heat exchanger and sent to each user after being pressurized by the circulating pump. The maximum heating circulating water volume is 810t / h. The water temperature drops and returns to the heat exchanger for heating, and it is used repeatedly in this way. The condensate produced by the 0.5MPa, 158℃ steam used for heat exchange is about 80℃, which is merged into the condensate pipe network and sent to the desalted water station. The heating water from each device exchanges heat with 0.5MPa, 158℃ steam in the heat exchanger. The heating water after heat exchange is pressurized by the pump and sent to each user. The water temperature of the heating water is mainly controlled by the 0.5MPa, 158℃ steam valve entering the heat exchanger.

[0003] The existing technology uses 0.5MPa, 158℃ steam to exchange heat with heating water, which consumes a lot of steam. The steam condensate produced by phenol recovery is 150℃, which has a relatively high temperature. In order to lower its temperature, it is heat-exchanged with circulating water at the desalted water station. When the temperature drops to 50℃, it is sent to the condensate tank to prepare desalted water. In order to recover the low-level thermal energy of the condensate, reduce the consumption of 0.5MPa, 158℃ steam, and reduce the consumption of circulating water. The steam condensate produced by the phenol recovery device is led to the heat exchange station and exchanged with heating water, which not only recovers the low-level thermal energy, but also reduces the consumption of 0.5MPa, 158℃ steam, and also reduces the heat load of the circulating water. Utility Model Content

[0004] Therefore, the purpose of the utility model is to propose a novel heating water heating device to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.

[0005] In order to achieve the above-mentioned objectives, an embodiment of the utility model on one hand provides a new type of heating water heating device, including three circulating pumps, a steam heater, a make-up water tank, two make-up water pumps, a condensate heat exchanger and pipelines, the make-up water tank, make-up water pump, circulating pump, steam heater and condensate heat exchanger are all connected by pipelines, the make-up water tank is connected to the two make-up water pumps by pipelines, the two make-up water pumps are connected to the three circulating pumps by pipelines, the three circulating pumps are connected to the steam heater by pipelines, and the steam heater is connected to the condensate heat exchanger by pipelines.

[0006] Preferably, any of the above schemes has a plurality of flow control valves fixedly installed inside the pipeline, and the valves are numbered 1, 2, 3...24, 25, 26 respectively.

[0007] The above technical solution is adopted: the flow rate at each location in the pipeline is controlled by the valve, so as to accurately control the flow rate inside each pipeline in the loop and control the inside of the pipeline.

[0008] Preferably, from any of the above schemes, the head of the circulation pump is 55m, the flow rate is 500m3 / h, and the head of the water supply pump is 113m, the flow rate is 46m3.

[0009] The above technical solution is adopted: a water supply pump is used to supply water, and a circulating pump provides pressure to the inside of the pipeline to ensure the stability of the internal transportation of the pipeline.

[0010] Preferably, any of the above schemes has a volume of 21m3 of the water supply tank, and a DN400 filter, seven DN400 stop valves and a temperature regulating valve are fixedly installed inside the pipeline.

[0011] Adopting the above technical solution: before using the water replenishment tank, it is necessary to establish the liquid level first, and then control the water replenishment pump to perform the water replenishment operation after the liquid level is established.

[0012] Preferably, any of the above schemes is that a desalted water replenishment pipeline is provided at one end of the water replenishment tank, and a steam inlet pipeline and a condensate outlet pipeline are respectively provided at one end of the steam heater.

[0013] The above technical solution is adopted: desalted water is stored in the water supply tank and injected into the pipeline as desalted water, so as to recover the heat inside the pipeline.

[0014] Preferably, any of the above schemes is that a condensate inlet pipeline and a desalted water outlet pipeline are provided at one end of the condensate heater, and the desalted water outlet pipeline is connected to a desalted water station.

[0015] The above technical solution is adopted: the desalted water can be discharged after the heat is recovered through the condensate heater, so as to facilitate subsequent utilization.

[0016] Compared with the prior art, the advantages and beneficial effects of the utility model are:

[0017] 1. The steam condensate produced by the phenol recovery device is led to the heat exchange station for heat exchange with heating water, which can make full use of the low-level thermal energy of the 150℃ condensate and reduce the consumption of 0.5MPa, 158℃ steam. If one ton of coal can produce 5 tons of steam, the boiler coal consumption can be reduced by 6.4 tons per hour, which not only ensures the normal operation of the heating network, but also saves costs, reduces consumption, and reduces the heat load of circulating water.

[0018] Additional aspects and advantages of the present invention will be given in part in the following description and in part will become apparent from the following description or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0020] Figure 1 A schematic diagram of the system layout according to an embodiment of the utility model; DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings, but the protection scope of the present invention is not limited to the following description.

[0022] like Figure 1 As shown, a new type of heating water heating device of an embodiment of the utility model includes three circulating pumps, a steam heater, a make-up water tank, two make-up water pumps, a condensate heat exchanger and pipelines. The make-up water tank, the make-up water pump, the circulating pump, the steam heater and the condensate heat exchanger are all connected by pipelines. The make-up water tank is connected to the two make-up water pumps by pipelines, the two make-up water pumps are connected to the three circulating pumps by pipelines, the three circulating pumps are connected to the steam heater by pipelines, and the steam heater is connected to the condensate heat exchanger by pipelines.

[0023] Preferably, any of the above schemes has a plurality of flow control valves fixedly installed inside the pipeline, and the valves are numbered 1, 2, 3...24, 25, 26 respectively.

[0024] The above technical solution is adopted: the flow rate at each location in the pipeline is controlled by the valve, so as to accurately control the flow rate inside each pipeline in the loop and control the inside of the pipeline.

[0025] Preferably, from any of the above schemes, the head of the circulation pump is 55m, the flow rate is 500m3 / h, and the head of the water supply pump is 113m, the flow rate is 46m3.

[0026] The above technical solution is adopted: a water supply pump is used to supply water, and a circulating pump provides pressure to the inside of the pipeline to ensure the stability of the internal transportation of the pipeline.

[0027] Preferably, any of the above schemes has a volume of 21m3 of the water supply tank, and a DN400 filter, seven DN400 stop valves and a temperature regulating valve are fixedly installed inside the pipeline.

[0028] Adopting the above technical solution: before using the water replenishment tank, it is necessary to establish the liquid level first, and then control the water replenishment pump to perform the water replenishment operation after the liquid level is established.

[0029] Preferably, any of the above schemes is that a desalted water replenishment pipeline is provided at one end of the water replenishment tank, and a steam inlet pipeline and a condensate outlet pipeline are respectively provided at one end of the steam heater.

[0030] The above technical solution is adopted: desalted water is stored in the water supply tank and injected into the pipeline as desalted water, so as to recover the heat inside the pipeline.

[0031] Preferably, any of the above schemes is that a condensate inlet pipeline and a desalted water outlet pipeline are provided at one end of the condensate heater, and the desalted water outlet pipeline is connected to a desalted water station.

[0032] The above technical solution is adopted: the desalted water can be discharged after the heat is recovered through the condensate heater, so as to facilitate subsequent utilization.

[0033] The utility model is a new type of heating water heating device, the working principle is as follows:

[0034] Before the heat exchange station is put into use, valves 1, 2, and 3 of the phenol recovery A, B, and C series condensate delivery are opened, valve 4 is opened, and other valves are closed. When the heat exchange station is put into use, first open valve 5 to establish the liquid level in the water supply tank. After the liquid level in the water supply tank is established, open valves 6 and 7, then start the water supply pump, open valves 8, 9, 10, 11, 12, 13, 14, 15, 16 and the return water valves of each user's heating, and inject water into the heating water network. When the pressure of the heating water network reaches 0.2MPa, start the circulation pump A (if pump A cannot meet the demand, pump B can be started at the same time). After the circulation pump is started, the network pressure stabilizes at 0.66MPa, then stop the water supply pump and close valves 5, 6, and 7 , 8, and then slowly open valves 17, 18, 19, and 20, and slowly close valve 4 to slowly heat up the heating water. If the heating water temperature is too high after heating, adjust it by adjusting valve 21. If the heating water temperature cannot meet the heating requirements or the phenol recovery device is shut down or the operating conditions are abnormal and cannot provide sufficient condensate, valve 21 is in a closed state, then open valves 26 and 27 to warm up the steam pipeline and steam heater. After the heating is completed, open valve 25, close valve 27, and then open valves 22, 24, and 23, put the steam heater into use, close valve 26, and then adjust the opening of the steam regulating valve 23 through the thermometer 1 to ensure the heating water temperature to meet the needs of each user.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] 1. The steam condensate produced by the phenol recovery device is led to the heat exchange station for heat exchange with heating water, which can make full use of the low-level thermal energy of the 150℃ condensate and reduce the consumption of 0.5MPa, 158℃ steam. If one ton of coal can produce 5 tons of steam, the boiler coal consumption can be reduced by 6.4 tons per hour, which not only ensures the normal operation of the heating network, but also saves costs, reduces consumption, and reduces the heat load of circulating water.

Claims

1. A new type of heating water heating device, characterized in that: The invention comprises three circulation pumps, a steam heater, a water supply tank, two water supply pumps, a condensate heat exchanger and pipelines. The water supply tank, water supply pump, circulation pump, steam heater and condensate heat exchanger are all connected through pipelines. The water supply tank is connected to the two water supply pumps through pipelines. The two water supply pumps are connected to the three circulation pumps through pipelines. The three circulation pumps are connected to the steam heater through pipelines. The steam heater is connected to the condensate heat exchanger through pipelines.

2. A novel heating water heating device as claimed in claim 1, characterized in that: Several flow control valves are fixedly installed inside the pipeline, and the valves are numbered 1, 2, 3...24, 25, 26 respectively.

3. A novel heating water heating device as claimed in claim 2, characterized in that: The head of the circulation pump is 55m and the flow rate is 500m3 / h. The head of the water supply pump is 113m and the flow rate is 46m3.

4. A novel heating water heating device as claimed in claim 3, characterized in that: The volume of the water replenishment tank is 21m3, and a DN400 filter, seven DN400 stop valves and a temperature regulating valve are fixedly installed inside the pipeline.

5. A novel heating water heating device as claimed in claim 4, characterized in that: A desalted water replenishment pipeline is provided at one end of the water replenishment tank, and a steam inlet pipeline and a condensate outlet pipeline are respectively provided at one end of the steam heater.

6. A novel heating water heating device as claimed in claim 5, characterized in that: A condensate inlet pipeline and a desalted water outlet pipeline are provided at one end of the condensate heater, and the desalted water outlet pipeline is connected to a desalted water station.

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