Unpowered condensate return device

Abstract

The utility model relates to a kind of steam condensate water's unpowered delivery and reuse device, including steam condensate water delivery component and heat exchange component, steam condensate water delivery component includes the cylinder body connected with steam condensate water delivery pipe, cylinder body is connected with pneumatic mechanical pump, pneumatic mechanical pump is connected with steam sending-in pipe;Heat exchange component includes gas-liquid separator, the bottom of pneumatic mechanical pump is equipped with condensate water sending-out pipe, condensate water sending-out pipe is connected with gas-liquid separator, the upper portion of gas-liquid separator is connected with gas phase output pipe, the lower portion of gas-liquid separator is connected with heat exchanger by liquid phase input pipe, the lower portion of heat exchanger is connected with steam condensate water output pipe, steam condensate water output pipe is communicated with gas phase output pipe.The utility model uses steam condensate water entrainment's non-condensable gas as the power source of pneumatic mechanical pump, realizes the automatic delivery of condensate water to the heat exchange separation of heat exchanger, finally realizes steam condensate water's delivery and heat energy utilization automatic control, automatic operation, without additional energy consumption purpose.

Description

Technical Field

[0001] This utility model relates to a device for conveying and reusing steam condensate, and more particularly to a non-powered device for conveying and reusing steam condensate, for comprehensively utilizing the energy of steam condensate. Background Technology

[0002] In industrial production, steam is widely used as a highly efficient and clean heat energy carrier. After high-temperature, high-pressure steam completes its heat exchange task, it condenses into high-temperature liquid water, known as steam condensate. This condensate has extremely high recycling value. However, in practical applications, how to effectively and safely transport the condensate generated in various steam-using equipment (such as heat exchangers, jacketed kettles, and ovens) back to the boiler room or central recovery system is a key technical challenge.

[0003] Existing technologies typically employ either open-loop or closed-loop pressurized recovery systems. However, open-loop systems discharge condensate through steam traps and collect it in an open, atmospheric-pressure recovery tank. While simple, this method has a fatal flaw: when the high-temperature condensate enters the atmospheric-pressure environment, the sudden pressure drop causes some water to flash into secondary steam and escape into the atmosphere, resulting in significant heat loss, water waste, and on-site thermal pollution. Closed-loop pressurized recovery systems use electric or pneumatic condensate pumps (or condensate recovery pumps) to pressurize the condensate in the collection tank and return it to the boiler room. This method achieves closed-loop recovery, avoids flash loss, and has high recovery efficiency. However, its core problem lies in its reliance on an external power source (electricity or compressed air) to drive the pump, which introduces new operating costs and potential points of failure.

[0004] Based on this, this utility model is proposed. Utility Model Content

[0005] In view of the above-mentioned technical problems of the prior art, the purpose of this utility model is to provide a non-powered conveying and recycling device for steam condensate. It uses the non-condensable gas entrained in the steam condensate as the power source of the pneumatic mechanical pump to realize the automatic conveying of condensate to the heat exchanger for heat exchange and separation. Ultimately, it realizes the automatic control and automatic operation of steam condensate conveying and heat energy utilization without the need for additional energy consumption.

[0006] To achieve the above objectives, this utility model is implemented through the following technical solution: A non-powered steam condensate conveying and reuse device includes a steam condensate conveying assembly and a heat exchange assembly. The steam condensate conveying assembly includes a cylinder connected to a steam condensate conveying pipe, and a pneumatic mechanical pump is connected to the cylinder. The pneumatic mechanical pump is connected to a steam inlet pipe. The heat exchange assembly includes a gas-liquid separator. A condensate outlet pipe is provided at the bottom of the pneumatic mechanical pump. The condensate outlet pipe is connected to the gas-liquid separator. A gas phase outlet pipe is connected to the upper part of the gas-liquid separator, and a heat exchanger is connected to the lower part of the gas-liquid separator through a liquid phase inlet pipe. A steam condensate outlet pipe is connected to the lower part of the heat exchanger, and the steam condensate outlet pipe is in communication with the gas phase outlet pipe.

[0007] The upper part of the cylinder is connected to the upper part of the pneumatic mechanical pump through an upper connecting pipe, and the lower part of the cylinder is connected to the lower part of the pneumatic mechanical pump through a lower connecting pipe.

[0008] The lower connecting pipe is equipped with a check valve and a manual butterfly valve.

[0009] The steam inlet pipe is connected to a steam trap and a manual ball valve.

[0010] The condensate outlet pipe is connected to a check valve.

[0011] The upper part of the heat exchanger is the heat exchanger outlet, and the lower part of the heat exchanger is the heat exchanger inlet.

[0012] The liquid phase input pipe is equipped with a regulating valve.

[0013] A remote thermometer is installed between the liquid phase inlet pipe and the heat exchanger outlet.

[0014] The steam condensate output pipe is equipped with a sight glass.

[0015] The beneficial effects of this utility model are as follows: This invention relates to a non-powered steam condensate transport and reuse device. Steam condensate enters a cylindrical body, and the resulting condensate flows from the bottom into a pneumatic mechanical pump. The non-condensable gases entrained in the steam condensate serve as the power source for the pneumatic mechanical pump, enabling automatic transport of the condensate to a heat exchanger for heat separation. Ultimately, this achieves automatic control and operation of steam condensate transport and heat energy utilization, requiring no additional energy consumption. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the steam condensate conveying assembly in this utility model; Among them, 1 is the steam condensate delivery assembly, 11 is the cylinder, 12 is the pneumatic mechanical pump, 13 is the steam inlet pipe, 14 is the condensate outlet pipe, 15 is the upper connecting pipe, 16 is the lower connecting pipe, 17 is the check valve, 18 is the manual butterfly valve, 19 is the steam trap, 110 is the manual ball valve, 2 is the heat exchange assembly, 21 is the gas-liquid separator, 22 is the gas phase outlet pipe, 23 is the heat exchanger, 231 is the heat exchanger outlet, 232 is the heat exchanger inlet, 24 is the steam condensate outlet pipe, 25 is the liquid phase inlet pipe, 26 is the regulating valve, 27 is the remote thermometer, and 28 is the sight glass. Detailed Implementation

[0017] The present invention will be further described below with reference to specific embodiments, but the scope of protection of the present invention is not limited thereto.

[0018] like Figure 1 and 2 As shown, this utility model discloses a non-powered steam condensate conveying and recycling device, comprising a steam condensate conveying assembly 1 and a heat exchange assembly 2. The steam condensate conveying assembly 1 includes a cylinder 11 connected to a steam condensate conveying pipe, and a pneumatic mechanical pump 12 connected to the cylinder 11. The pneumatic mechanical pump 12 is externally connected to a steam inlet pipe 13. When the non-condensable gas entrained in the steam condensate is insufficient and cannot be conveyed, auxiliary equipment can be activated appropriately. The heat exchange assembly 2 includes a gas-liquid separator 21. A condensate outlet pipe 14 is provided at the bottom of the pneumatic mechanical pump 12, which is connected to the gas-liquid separator 21. After being conveyed, the steam condensate enters the gas-liquid separator 21 before entering the heat exchanger 23, where it is separated to utilize the steam condensate with good heat exchange effect, and the non-condensable gas is filtered out. A gas phase outlet pipe 22 is connected to the upper part of the gas-liquid separator 21, and the high-temperature non-condensable gas filtered and separated in the gas-liquid separator 21 is discharged from the gas phase outlet pipe 22. The lower part of the gas-liquid separator 21 is connected to a heat exchanger 23 via a liquid phase inlet pipe 25. The upper part of the heat exchanger 23 is the heat exchanger outlet 231, and the lower part is the heat exchanger inlet 232. That is, the steam condensate outlet of the heat exchanger 23 is higher than the inlet, forming a U-shaped liquid seal. This keeps the steam condensate in the heat exchanger 23 completely full and creates a cross-flow with the medium to be exchanged, improving heat exchange efficiency. Furthermore, the lower part of the heat exchanger 23 is connected to a steam condensate outlet pipe 24, which is connected to the gas phase outlet pipe 22. This allows the low-temperature steam condensate after heat exchange to merge with the high-temperature non-condensable gas filtered and separated in the gas-liquid separator 21, causing the non-condensable gas to condense, thus making full use of heat energy and reducing heat loss.

[0019] Furthermore, in this invention, the upper part of the cylinder 11 is connected to the upper part of the pneumatic mechanical pump 12 via an upper connecting pipe 15, and the lower part of the cylinder 11 is connected to the lower part of the pneumatic mechanical pump 12 via a lower connecting pipe 16. The lower connecting pipe 16 is equipped with a check valve 17 and a manual butterfly valve 18. This ensures gas phase balance between the cylinder 11 and the pneumatic mechanical pump 12, facilitating the use of liquid level differences to allow water in the cylinder 11 to enter the pneumatic mechanical pump 12, thereby improving conveying efficiency.

[0020] Furthermore, the steam inlet pipe 13 of this invention is connected to a steam trap 19 and a manual ball valve 110, and the condensate outlet pipe 14 is connected to a check valve 17. The liquid phase inlet pipe 25 is equipped with a regulating valve 26, and a remote thermometer 27 is installed between the liquid phase inlet pipe 25 and the heat exchanger outlet 231. When the temperature is too high, the regulating valve 26 is closed; when the temperature is too low, the regulating valve 26 is opened, i.e., the two are interlocked to maintain a stable temperature of the heat exchange medium after heat exchange.

[0021] Furthermore, the steam condensate output pipe 24 of this utility model is equipped with a sight glass 28, which facilitates observation of the steam condensate water quality after heat exchange and can promptly detect any perforations or leaks in the heat exchanger 23, thus avoiding potential safety hazards.

[0022] In operation, steam condensate enters the cylinder 11, and the resulting condensate enters the pneumatic mechanical pump 12 from the bottom. The non-condensable gases entrained in the steam condensate serve as the power source for the pneumatic mechanical pump 12, enabling the automatic delivery of condensate to the heat exchanger for heat separation. In other words, the delivery of steam condensate and the utilization of heat energy are automatically controlled and operated without the need for additional energy consumption.

[0023] The above embodiments are only used to explain the inventive concept of this utility model, and are not intended to limit the protection of this utility model. Any non-substantial modifications made to this utility model using this concept should fall within the protection scope of this utility model.

Claims

1. A non-powered conveying and recycling device for steam condensate, characterized in that: The device includes a steam condensate delivery assembly and a heat exchange assembly. The steam condensate delivery assembly includes a cylinder connected to a steam condensate delivery pipe, and a pneumatic mechanical pump connected to the cylinder. The pneumatic mechanical pump is connected to a steam inlet pipe. The heat exchange assembly includes a gas-liquid separator. A condensate outlet pipe is provided at the bottom of the pneumatic mechanical pump and is connected to the gas-liquid separator. A gas phase outlet pipe is connected to the upper part of the gas-liquid separator, and a heat exchanger is connected to the lower part of the gas-liquid separator through a liquid phase inlet pipe. A steam condensate outlet pipe is connected to the lower part of the heat exchanger and is in communication with the gas phase outlet pipe.

2. The non-powered conveying and reuse device for steam condensate as described in claim 1, characterized in that: The upper part of the cylinder is connected to the upper part of the pneumatic mechanical pump through an upper connecting pipe, and the lower part of the cylinder is connected to the lower part of the pneumatic mechanical pump through a lower connecting pipe.

3. The non-powered conveying and reuse device for steam condensate as described in claim 2, characterized in that: The lower connecting pipe is equipped with a check valve and a manual butterfly valve.

4. The non-powered conveying and reuse device for steam condensate as described in claim 1, characterized in that: The steam inlet pipe is connected to a steam trap and a manual ball valve.

5. The non-powered conveying and reuse device for steam condensate as described in claim 1, characterized in that: The condensate outlet pipe is connected to a check valve.

6. The non-powered conveying and reuse device for steam condensate as described in claim 1, characterized in that: The upper part of the heat exchanger is the heat exchanger outlet, and the lower part of the heat exchanger is the heat exchanger inlet.

7. The non-powered conveying and reuse device for steam condensate as described in claim 1, characterized in that: The liquid phase input pipe is equipped with a regulating valve.

8. The non-powered conveying and reuse device for steam condensate as described in claim 1, characterized in that: A remote thermometer is installed between the liquid phase inlet pipe and the heat exchanger outlet.

9. The non-powered conveying and reuse device for steam condensate as described in claim 1, characterized in that: The steam condensate output pipe is equipped with a sight glass.

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