Comprehensive utilization device for flash steam

Abstract

The utility model relates to the field of heat recovery, in particular to a flash steam comprehensive utilization device which comprises a base, a flash tank, a flow guide pipe, a heat exchange box, an air conditioner water return pipe, a heat exchange pipe, a discharge valve pipe and the like. The base is fixedly connected with a flash tank; the top of the flash tank is fixedly connected with a flow guide pipe; the base is fixedly connected with a heat exchange box, and the flow guide pipe communicates with the heat exchange box. The base is fixedly connected with an air conditioner water return pipe. A heat exchange pipe is fixedly connected in the heat exchange box, the heat exchange pipe is provided with at least two stages of bends which are tightly arranged in the heat exchange box, and the heat exchange pipe is communicated with an air conditioner water return pipe; a discharge valve pipe is fixedly connected to the base and communicates with the heat exchange pipe. The flash steam generated during flash evaporation of condensate water generated during water production is used for heat exchange of air conditioner return water, energy consumption of an original air conditioner heating system is reduced, water production processing resources are greatly saved, and water production cost is saved.

Description

Technical Field

[0001] The utility model relates to the field of heat recovery, in particular to a flash steam comprehensive utilization device. Background Art

[0002] In the water production workshop, condensed water is used for cooling processing, and condensed water is used to cool high-temperature gas or liquid to achieve specific processing indicators and treatment requirements; the condensed water after heat exchange will contain a higher amount of heat. The existing technology will collect the condensed water and transfer it back to the boiler for water replenishment. However, when the condensed water is returned to the recovery pool, due to the pressure difference between the two compartments, the high-temperature condensed water after heat exchange will flash. After the condensed water is discharged, its steam part directly dissipates, resulting in part of the heat being wasted. Utility Model Content

[0003] The utility model provides a flash steam comprehensive utilization device, which aims to recycle the condensed water vapor part which is easy to escape and cause heat loss proposed in the above background technology.

[0004] A flash steam comprehensive utilization device comprises a base, a flash tank, a guide pipe, a heat exchange box, an air-conditioning return pipe, a heat exchange pipe and a discharge valve pipe; the base is fixedly connected with a flash tank, condensed water used in water production is added into the flash tank for flash evaporation, and liquid condensed water after flash evaporation flows back to the boiler; the top of the flash tank is fixedly connected with a guide pipe; the base is fixedly connected with a heat exchange box, the guide pipe is connected with the heat exchange box, and the guide pipe guides the high-temperature flash steam generated after the flash evaporation of the condensed water into the heat exchange box; the base is fixedly connected with an air-conditioning return pipe; the heat exchange pipe is fixedly connected in the heat exchange box, the heat exchange pipe is provided with bends, the bends have at least two levels, and are closely arranged in the heat exchange box, and the heat exchange pipe is connected with the air-conditioning return pipe; the base is fixedly connected with a discharge valve pipe, and the discharge valve pipe is connected with the heat exchange pipe.

[0005] Optionally, it also includes an exhaust pipe and a pressure plate; the exhaust pipe is fixedly connected to the bottom of the heat exchange box; and the pressure plate is rotatably connected inside the exhaust pipe.

[0006] Optionally, it also includes a factory water pipe, a diversion outlet, a drainage plate, a connecting block, a fixing screw and a limiting hole; the base is fixedly connected to the factory water pipe; the base is fixedly connected to the diversion outlet, one side of the diversion outlet is respectively connected and communicated with the factory water pipe and the air-conditioning return pipe, and the other side of the diversion outlet is connected and communicated with the heat exchange pipe; the diversion outlet is rotatably connected with a drainage plate, and the factory water pipe or the air-conditioning return pipe will be separately connected with the heat exchange pipe before and after the rotation of the drainage plate; the diversion outlet is rotatably connected with a connecting block, and the connecting block is fixedly connected to the drainage plate; two limiting holes are provided on the outer wall of the diversion outlet; the connecting block is rotatably connected with a fixing screw, and the fixing screw can be threadedly connected in the two limiting holes.

[0007] Optionally, a heat-insulating sleeve is also included, and the guide pipe is wrapped with the heat-insulating sleeve.

[0008] Optionally, a cleaning pipe is also included, and a cleaning pipe is opened at the bottom of the heat exchange box.

[0009] Optionally, a temperature gauge is further included, and the temperature gauge is fixedly connected to the discharge valve pipe.

[0010] Beneficial effects: The utility model utilizes the flash steam generated when the condensed water generated during water production is flashed to heat the air conditioner return water, thereby reducing the energy consumption of the original air conditioning heating system, greatly saving water production processing resources, and saving water production costs; the utility model can switch the hot water for heat exchange, and freely change whether the heat exchange air conditioner return water or the factory water is used according to the season of use, thereby reducing the use restrictions of the device and improving the use effect of the device; the utility model can reduce the heat loss of the flash steam when it flows in the guide pipe, and improve the heat recovery rate of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0012] Figure 2 It is a structural cross-sectional view of the flash tank, heat exchange box and heat exchange tube of the utility model.

[0013] Figure 3 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0014] Figure 4 It is a structural cross-sectional view of the diversion port of the utility model.

[0015] The markings in the attached figure are: 1-base, 2-flash tank, 3-guide pipe, 301-inlet, 302-return pipe outlet, 4-heat exchange box, 5-air conditioning return pipe, 501-fixed bracket, 6-factory water pipe, 7-diversion outlet, 8-heat exchange pipe, 9-discharge valve pipe, 10-exhaust pipe, 11-pressure plate, 12-guide plate, 13-connecting block, 14-fixing screw, 15-limiting hole, 16-insulation sleeve, 17-cleaning pipe, 18-temperature gauge. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0017] Embodiment: A flash steam comprehensive utilization device, see Figure 1-Figure 2, including a base 1, a flash tank 2, an inlet 301, a reflux pipe port 302, a guide pipe 3, a heat exchange box 4, a fixed bracket 501, an air conditioning return pipe 5, a heat exchange pipe 8 and a discharge valve pipe 9; the flash tank 2 is fixedly installed on the base 1, and the inlet 301 is fixedly installed on the left side of the flash tank 2. The inlet 301 is used to add condensed water used in water production into the flash tank 2, and the high-temperature condensed water flashes in the flash tank 2. The reflux pipe port 302 is fixedly installed at the bottom of the flash tank 2, and the reflux pipe port 302 is used to return the liquid condensed water after flashing to the boiler for recycling; A guide pipe 3 is fixedly installed on the top of the steam tank 2; a heat exchange box 4 is fixedly installed on the base 1, and the guide pipe 3 is connected to the heat exchange box 4, and the guide pipe 3 guides the high-temperature flash steam generated after the flash evaporation of condensed water to the heat exchange box 4; a fixed bracket 501 is fixedly installed on the base 1; an air-conditioning return pipe 5 is fixedly installed on the fixed bracket 501; a heat exchange tube 8 is fixedly installed in the heat exchange box 4, and the heat exchange tube 8 is provided with four levels of bends and is tightly arranged in the heat exchange box 4, and the heat exchange tube 8 is connected to the air-conditioning return pipe 5; a discharge valve tube 9 is fixedly installed on the base 1, and the discharge valve tube 9 is connected to the heat exchange tube 8.

[0018] The condensed water generated during water production is added into the flash tank 2 through the inlet 301. In the low-pressure flash tank 2, the condensed water flashes instantly, and the gas and liquid are separated in the flash tank 2. The liquid condensed water flows back to the boiler through the return pipe 302 for recycling, and the gaseous high-temperature steam passes through the guide pipe 3 and enters the heat exchange box 4. In winter, the water production plant needs to use air conditioning for heating due to the temperature demand of the environment. Therefore, after the air-conditioning return water enters the heat exchange pipe 8 through the air-conditioning return pipe 5, the high-temperature steam in the heat exchange box 4 contacts the heat exchange pipe 8, exchanges heat with the air-conditioning return water in the heat exchange pipe 8, heats the air-conditioning return water, and the heated air-conditioning return water passes through the discharge valve pipe 9 and directly returns to the air-conditioning system for heating circulation. In this way, the air-conditioning return water can be used to absorb the heat that would otherwise be wasted when the condensed water flashes, and the insufficient part of the air-conditioning return water temperature can still be satisfied by the original air-conditioning heating system, thereby reducing the energy consumption of the original air-conditioning heating system and greatly saving water production processing resources.

[0019] See also Figure 3 , also includes an exhaust pipe 10 and a pressure plate 11; the exhaust pipe 10 is fixedly connected to the bottom of the heat exchange box 4; the pressure plate 11 is rotatably connected inside the exhaust pipe 10. When a large amount of steam enters the heat exchange box 4 and the air pressure in the heat exchange box 4 reaches a preset value, the air pressure member in the heat exchange box 4 pushes the pressure plate 11 to automatically deflate until the air pressure in the heat exchange box 4 returns to normal, and the pressure plate 11 automatically rotates back to reduce heat loss.

[0020] See also Figure 2 and Figure 4, also includes a plant water pipe 6, a diversion port 7, a guide plate 12, a connecting block 13, a fixing screw 14 and a limiting hole 15; the fixing bracket 501 is fixedly installed with the plant water pipe 6; the base 1 is fixedly installed with the diversion port 7, the left side of the diversion port 7 is provided with two independent ports, and the right side is provided with a separate port, the two ports on the left side of the diversion port 7 are respectively connected and communicated with the plant water pipe 6 and the air conditioning return pipe 5, and the port on the right side of the diversion port 7 is connected and communicated with the heat exchange pipe 8; the diversion port 7 is rotated to install A guide plate 12 is installed, and the guide plate 12 can close the two ports on the left side of the bypass opening 7 respectively before and after rotation, so that the factory water pipe 6 or the air-conditioning return pipe 5 is separately connected to the heat exchange pipe 8; a connecting block 13 is rotatably installed outside the bypass opening 7, and the connecting block 13 is fixedly connected to the guide plate 12; two limiting holes 15 are provided on the outer side wall of the bypass opening 7; a fixing screw 14 is rotatably connected to the connecting block 13, and the fixing screw 14 can be threadedly connected in the two limiting holes 15 to fix the connecting block 13 at different positions.

[0021] In the summer when air conditioning is not needed, the device can be used to exchange heat for plant water. The fixing screw 14 is rotated to release the fixing of the connecting block 13. By rotating the connecting block 13, the position of the guide plate 12 in the bypass opening 7 is changed, the port on the bypass opening 7 connected to the air conditioning return pipe 5 is closed, and the port on the bypass opening 7 connected to the plant water pipe 6 is opened. The fixing screw 14 is rotated again to fix the connecting block 13 and the position of the guide plate 12. At this time, the flash steam will exchange heat for the plant water.

[0022] See also Figure 1 , and also includes an insulation sleeve 16, which is wrapped outside the guide pipe 3; the insulation sleeve 16 can reduce the heat loss of flash steam when it flows in the guide pipe 3, thereby improving the heat recovery rate of the device.

[0023] See also Figure 1 , and also includes a cleaning pipe 17. A cleaning pipe 17 is opened at the bottom of the heat exchange box 4, and the cleaning pipe 17 is used to discharge the water in the heat exchange box 4; after the flash steam exchanges heat with the water in the heat exchange tube 8, the temperature decreases, and the flash steam may produce a small amount of water droplets in the heat exchange box 4. The moisture in the heat exchange box 4 can be discharged through the cleaning pipe 17 to prevent this part of water from affecting the heat exchange process of the flash steam.

[0024] See also Figure 1, also includes a thermometer 18. The thermometer 18 is fixedly installed on the discharge valve pipe 9. The thermometer 18 is used to measure the water temperature in the discharge valve pipe 9, so that people can conveniently observe the temperature of the air-conditioning return water after heat exchange. If the temperature of the air-conditioning return water before heat exchange is about 40 degrees, the air-conditioning return water temperature needs to reach 60 degrees. When it is observed that the air-conditioning return water only reaches 55 degrees after heat exchange, people adjust the air-conditioning return water to the original heating system for reheating according to the observation results. When it is observed that the air-conditioning return water reaches 60 degrees after heat exchange, it does not need to be heated again and can be used directly; therefore, the use of the thermometer 18 can facilitate people to control the reheating of the air-conditioning return water.

[0025] The above-mentioned embodiments only express the preferred implementation of the utility model, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications, improvements and substitutions can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A flash steam comprehensive utilization device, characterized in that: The invention comprises a base (1), a flash tank (2), a flow guide pipe (3), a heat exchange box (4), an air conditioning return pipe (5), a heat exchange pipe (8) and a discharge valve pipe (9); the base (1) is fixedly connected with the flash tank (2); condensed water used in water production is added to the flash tank (2) for flash evaporation; after flash evaporation, the liquid condensed water flows back to the boiler for recycling; the top of the flash tank (2) is fixedly connected with the flow guide pipe (3); the base (1) is fixedly connected with the heat exchange box (4); the flow guide pipe (3) and the heat exchange box are connected to the heat exchange box. (4) is connected, and the guide pipe (3) guides the high-temperature flash steam generated after the flash evaporation of the condensed water to the heat exchange box (4); the base (1) is fixedly connected to the air conditioner return pipe (5); the heat exchange box (4) is fixedly connected to a heat exchange pipe (8), the heat exchange pipe (8) is provided with a bend, the bend has at least two levels, and is closely arranged in the heat exchange box (4), and the heat exchange pipe (8) is connected to the air conditioner return pipe (5); the base (1) is fixedly connected to a discharge valve pipe (9), and the discharge valve pipe (9) is connected to the heat exchange pipe (8).

2. A flash steam comprehensive utilization device according to claim 1, characterized in that: It also includes an exhaust pipe (10) and a pressure plate (11); the exhaust pipe (10) is fixedly connected to the bottom of the heat exchange box (4); A pressure plate (11) is rotatably connected inside the exhaust pipe (10).

3. A flash steam comprehensive utilization device according to claim 2, characterized in that: It also comprises a factory water pipe (6), a diversion opening (7), a drainage plate (12), a connecting block (13), a fixing screw (14) and a limiting hole (15); the base (1) is fixedly connected to the factory water pipe (6); the base (1) is fixedly connected to the diversion opening (7); one side of the diversion opening (7) is respectively connected to and communicated with the factory water pipe (6) and the air conditioning return pipe (5); the other side of the diversion opening (7) is connected to and communicated with the heat exchange pipe (8); the diversion opening (7) is rotatably connected to the drainage plate (12); The guide plate (12) rotates forward and backward to enable the factory water pipe (6) or the air conditioning return pipe (5) to be connected to the heat exchange pipe (8) separately; a connecting block (13) is rotatably connected to the outside of the diversion opening (7), and the connecting block (13) is fixedly connected to the guide plate (12); two limiting holes (15) are provided on the outer wall of the diversion opening (7); a fixing screw (14) is rotatably connected to the connecting block (13), and the fixing screw (14) can be threadedly connected in the two limiting holes (15) to fix the connecting block (13) at different positions.

4. A flash steam comprehensive utilization device according to claim 3, characterized in that: It also comprises a heat-insulating sleeve (16), and the flow guide pipe (3) is wrapped with the heat-insulating sleeve (16).

5. A flash steam comprehensive utilization device according to claim 4, characterized in that: It also comprises a cleaning pipe (17). The bottom of the heat exchange box (4) is provided with a cleaning pipe (17). The cleaning pipe (17) is used to discharge water in the heat exchange box (4).

6. A flash steam comprehensive utilization device according to claim 5, characterized in that: The invention also comprises a thermometer (18), which is fixedly connected to the discharge valve pipe (9) and is used to measure the water temperature in the discharge valve pipe (9).

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