Condensate water recovery device of steam heater

Abstract

The utility model relates to a steam heater condensate water recycling device which comprises a condensate water recycling water tank and a condensate water discharging system, the top of the condensate water recycling water tank is provided with a water inlet, the bottom of the condensate water recycling water tank is provided with a water discharging port, the water inlet is connected with a steam heater, and the water discharging port is connected with the steam heater. And the water outlet is connected with the condensate water discharge system. When the condensate water of the steam heater is discharged, the water of the condenser is discharged to the water tank by utilizing the steam pressure in the heater to recycle the condensate water, and meanwhile, two drain pumps, pipelines and valves are arranged beside the water tank to convey the condensate water to each recycling user point; meanwhile, the liquid level meter is installed on the water tank body, the liquid level in the tank body is monitored in real time, the water tank is matched with the drainage pump for control and adjustment, waste of water resources is avoided, and meanwhile the operation safety of a condensate water drainage place is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of steam heater condensation recovery, in particular to a steam heater condensate recovery device. Background Art

[0002] The condensed water produced by the heat exchange of the steam heater for the original air separation oxygen production was directly discharged into the ditch, which not only caused a waste of water resources, but also generated a large amount of mist during the discharge process, affecting the spot inspection of on-site equipment.

[0003] In addition, the splashing of high-temperature liquid during the condensate discharge process can easily cause scalding accidents, posing a safety hazard and placing great pressure on on-site standardized management. Utility Model Content

[0004] The utility model aims to provide a steam heater condensate recovery device, which solves the problems of resource waste and potential safety hazards caused by direct discharge of condensate generated by heat exchange of the steam heater in the prior art.

[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0006] The utility model provides a condensate recovery device for a steam heater, comprising a condensate recovery water tank and a condensate discharge system, wherein a water inlet is arranged on the top of the condensate recovery water tank, a drain outlet is arranged on the bottom of the condensate recovery water tank, the water inlet is connected to the steam heater, and the drain outlet is connected to the condensate discharge system.

[0007] Furthermore, an exhaust pipe is provided on the top of the condensed water recycling water tank for dissipating heat and exhausting air inside the condensed water recycling water tank.

[0008] Furthermore, the lower part of the exhaust pipe is a straight pipe, the upper part of the exhaust pipe is a curved pipe, and one end of the curved pipe is provided with an exhaust port vertically downward.

[0009] Furthermore, an overflow port is provided at the top left side of the condensate recycling water tank to prevent water overflow in the tank.

[0010] Furthermore, a cleaning manhole is provided in the middle of the left side of the condensate recycling water tank for manual inspection and cleaning.

[0011] Furthermore, a sewage outlet is provided at the lower right end of the condensate recycling water tank for discharging sewage from the water body in the tank.

[0012] Furthermore, the condensate recycling water tank body is equipped with a magnetic flap level gauge for real-time liquid level measurement inside the tank body.

[0013] Further, the condensate discharge system comprises a first drain pipe and a second drain pipe, and the first drain pipe is connected in parallel with the second drain pipe;

[0014] The first drainage pipe is provided with a first manual butterfly valve, a second manual butterfly valve, a first drain pump, a first check valve and a first electric butterfly valve in sequence;

[0015] The second drainage pipe is provided with a first manual butterfly valve, a third manual butterfly valve, a second drain pump, a second check valve and a second electric butterfly valve in sequence.

[0016] Furthermore, a first drain valve is arranged on the connecting branch between the first manual butterfly valve and the second manual butterfly valve; a second drain valve is arranged on the connecting branch between the first check valve and the first electric butterfly valve; and a third drain valve is arranged on the connecting branch between the second check valve and the second electric butterfly valve.

[0017] Furthermore, the steam heater condensate recovery device also includes a DCS controller, the input end of the DCS controller is connected to the output end of the magnetic flap level gauge, and the output end of the DCS controller is respectively connected to the first drain valve, the first steam pump, the first check valve, the second drain valve, the first electric butterfly valve, the second steam pump, the second check valve, the third drain valve and the second electric butterfly valve.

[0018] Due to the application of the above technical solution, the utility model has the following advantages compared with the prior art:

[0019] The utility model discloses a condensate recovery device for a steam heater. When the condensate of the steam heater is discharged, the internal steam pressure of the heater is used to discharge the condensate water into a water tank to realize the recovery of the condensate. Meanwhile, two drain pumps, pipelines and valves are arranged beside the water tank to realize the transportation of the condensate to various recovery user points. Meanwhile, a liquid level gauge is installed on the water tank body to monitor the liquid level in the tank in real time, and cooperates with the drain pump for control and adjustment, so as to avoid the waste of water resources and improve the operational safety of the condensate discharge site. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Hereinafter, some specific embodiments of the present invention will be described in detail in an exemplary and non-limiting manner with reference to the accompanying drawings. The same reference numerals in the accompanying drawings indicate the same or similar components or parts. It should be understood by those skilled in the art that these drawings are not necessarily drawn to scale. In the accompanying drawings:

[0021] Figure 1 This is a device diagram of a steam heater condensate recovery device provided by the utility model;

[0022] The reference numerals are described as follows:

[0023] 1. Condensate recycling water tank; 101. Water inlet; 102. Drain outlet; 103. Exhaust pipe; 104. Exhaust outlet; 105. Overflow outlet; 106. Clean manhole; 107. Drain outlet; 108. Magnetic flap level gauge; 2. First drain pipe; 3. Second drain pipe; 4. First manual butterfly valve; 5. Second manual butterfly valve; 6. First drain pump; 7. First check valve; 8. First electric butterfly valve; 9. Third manual butterfly valve; 10. Second drain pump; 11. Second check valve; 12. Second electric butterfly valve; 13. First drain valve; 14. Second drain valve; 15. Third drain valve. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] See also Figure 1 As shown, a steam heater condensate recovery device in the utility model includes a condensate recycling water tank 1 and a condensate discharge system. The condensate recycling water tank 1 is provided with a water inlet 101 on the top and a drain outlet 102 on the bottom. The water inlet 101 is connected to the steam heater, and the drain outlet 102 is connected to the condensate discharge system.

[0026] An exhaust pipe 103 is arranged on the top of the condensate recycling water tank 1. The lower part of the exhaust pipe 103 is a straight pipe, and the upper part is a curved pipe. An exhaust port 104 is opened at the end of the curved pipe to dissipate heat and exhaust air inside the water tank body.

[0027] An overflow port 105 is provided at the top left side of the condensate recycling water tank 1 to prevent overflow in the water tank; a cleaning manhole 106 is provided in the middle left side of the water tank to facilitate maintenance personnel to enter the tank for maintenance and cleaning, thereby ensuring a sanitary environment inside the tank. When the cleaning manhole 106 is not opened, a tight cover is generally used to seal the water tank.

[0028] A sewage outlet 107 is provided at the lower right end of the condensate recycling water tank 1 for discharging sewage from the water tank or for discharging clean sewage.

[0029] In addition, a magnetic flap level gauge 108 is installed on the body of the condensate recycling water tank 1, which is used to monitor and control the liquid level of the water in the water tank. The height of the liquid level in the tank is determined by measuring the floating of the water on the magnetic flap, thereby achieving accurate control of the liquid level. In addition, the magnetic flap level gauge is generally made of corrosion-resistant materials, has good durability, and is suitable for various industrial environments.

[0030] The condensate discharge system in the utility model includes a first drain pipe 2 and a second drain pipe 3, which are connected in parallel. In actual production, a suitable number of drain pipes can be arranged according to the on-site environment and actual needs, so as to increase the recycling efficiency of condensate water. The arrangement principles of the valves and pumps on the drain pipes are consistent, and the operator can also change the arrangement positions of the valves and drain pumps according to actual needs.

[0031] Specifically, the first drain pipe 2 is provided with a first manual butterfly valve 4, a second manual butterfly valve 5, a first drain pump 6, a first check valve 7 and a first electric butterfly valve 8 in sequence; the second drain pipe 3 is provided with a first manual butterfly valve 4, a third manual butterfly valve 9, a second drain pump 10, a second check valve 11 and a second electric butterfly valve 12 in sequence.

[0032] In addition, a first drain valve 13 is arranged on the connecting branch between the first manual butterfly valve 4 and the second manual butterfly valve 5; a second drain valve 14 is arranged on the connecting branch between the first check valve 7 and the first electric butterfly valve 8; a third drain valve 15 is arranged on the connecting branch between the second check valve 11 and the second electric butterfly valve 12; the above-mentioned drain valves are arranged to discharge sewage from the water in the box and the pipeline; at the same time, by arranging valves and pumps on the drainage pipeline, the water delivery efficiency of the box is improved.

[0033] The utility model provides a steam heater condensate recovery device also includes a DCS controller, whose input end is connected to the output end of the magnetic flap level gauge 106, and whose output end is respectively connected to the first drain pump 6, the first check valve 7, the first electric butterfly valve 8, the second drain pump 10, the second check valve 11, the second electric butterfly valve 12, the first drain valve 13, the second drain valve 14 and the third drain valve 15.

[0034] The first drain pump 6 and the second drain pump 10 are set up in the whole device in a chained working principle. When the liquid level in the water tank is high, a drain pump is chained to transport condensed water to the user end, and the pump is chained to stop when the liquid level is low. And if one of the drain pumps in use fails (such as low pressure in the pump outlet pipeline, pump failure and inability to start, etc.), the other standby drain pump can start automatically to ensure the transportation and recycling rate of condensed water and production needs, and realize one use and one standby drain pump.

[0035] When the device is recovering condensed water, the condensed water enters the condensed water recycling tank 1 from the steam heater through the water inlet 101. When the liquid level in the water tank reaches the set height, the DCS controller receives the liquid level information transmitted by the liquid level meter, sends a stop drainage instruction to the steam heater, and at the same time sends an opening instruction to the first steam drain pump 6, the first check valve 7, the first electric butterfly valve 8, the second steam drain pump 10, the second check valve 11 and the second electric butterfly valve 12, and sends a closing instruction to the first drain valve 13, the second drain valve 14 and the third drain valve 15, so as to transport the condensed water in the water tank to each user point and transfer it to the next process.

[0036] In addition, during actual production applications, the first drain valve 13, the second drain valve 14 and the third drain valve 15 are usually in a closed state; when sewage discharge operations are required in the water tank body or the drainage pipe, the operator can also send an opening instruction to the above-mentioned first drain valve 13, the second drain valve 14 and the third drain valve 15 to complete the sewage discharge action.

[0037] The above embodiments are only for illustrating the technical concept and features of the utility model, and their purpose is to enable people familiar with this technology to understand the content of the utility model and implement it accordingly. They cannot be used to limit the protection scope of the utility model. All equivalent changes or modifications made according to the spirit of the utility model should be included in the protection scope of the utility model.

Claims

1. A steam heater condensate recovery device, characterized in that: The invention comprises a condensate recycling water tank (1) and a condensate discharge system, wherein the top of the condensate recycling water tank (1) is provided with a water inlet (101), and the bottom of the condensate recycling water tank (1) is provided with a water outlet (102), the water inlet (101) is connected to a steam heater, and the water outlet (102) is connected to the condensate discharge system.

2. A steam heater condensate recovery device according to claim 1, characterized in that: An exhaust pipe (103) is also provided on the top of the condensed water recycling tank (1) for dissipating heat and exhausting air inside the condensed water recycling tank (1).

3. A steam heater condensate recovery device according to claim 2, characterized in that: The lower part of the exhaust pipe (103) is a straight pipe, and the upper part of the exhaust pipe (103) is a curved pipe. An exhaust port (104) is vertically arranged downward at one end of the curved pipe.

4. A steam heater condensate recovery device according to claim 1, characterized in that: The top left side of the condensed water recycling tank (1) is provided with an overflow port (105) for preventing water from overflowing from the tank.

5. The steam heater condensate recovery device according to claim 1, characterized in that: A cleaning manhole (106) is provided in the middle of the left side of the condensed water recycling tank (1) for manual inspection and cleaning.

6. A steam heater condensate recovery device according to claim 1, characterized in that: The lower right end of the condensed water recycling tank (1) is provided with a sewage outlet (107) for discharging sewage from the water in the tank.

7. The steam heater condensate recovery device according to claim 1, characterized in that: The condensate recycling water tank (1) is provided with a magnetic flap level gauge (108) for real-time liquid level measurement inside the tank.

8. A steam heater condensate recovery device according to claim 7, characterized in that: The condensate discharge system comprises a first drain pipe (2) and a second drain pipe (3), wherein the first drain pipe (2) and the second drain pipe (3) are connected in parallel; The first drainage pipe (2) is provided with a first manual butterfly valve (4), a second manual butterfly valve (5), a first drain pump (6), a first check valve (7) and a first electric butterfly valve (8) in sequence; The second drainage pipe (3) is provided with a first manual butterfly valve (4), a third manual butterfly valve (9), a second drain pump (10), a second check valve (11) and a second electric butterfly valve (12) in sequence.

9. A steam heater condensate recovery device according to claim 8, characterized in that: A first drain valve (13) is provided on the connecting branch between the first manual butterfly valve (4) and the second manual butterfly valve (5); a second drain valve (14) is provided on the connecting branch between the first check valve (7) and the first electric butterfly valve (8); and a third drain valve (15) is provided on the connecting branch between the second check valve (11) and the second electric butterfly valve (12).

10. A steam heater condensate recovery device according to claim 9, characterized in that: The steam heater condensate recovery device also includes a DCS controller, the input end of the DCS controller is connected to the output end of the magnetic flap level gauge (108), and the output end of the DCS controller is respectively connected to the first drain pump (6), the first check valve (7), the first electric butterfly valve (8), the second drain pump (10), the second check valve (11), the second electric butterfly valve (12), the first drain valve (13), the second drain valve (14) and the third drain valve (15).

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