Steam condensate water heat energy recovery device

Abstract

The utility model discloses a steam condensate heat energy recovery device which comprises a liquid medium pipeline, a steam condensate header pipe, a plate heat exchanger, a hydrothermal tank, a valve branch and an output branch. The plate heat exchanger comprises a first pipeline and a second pipeline for reverse heat exchange; the hot liquid tank is communicated with the water outlet branch; the valve branch is arranged at the bottom of the hot liquid box; and the output branch is communicated with the valve branch. According to the steam condensate water heat energy recovery device, heat energy of high-temperature steam condensate water in the steam condensate water main pipe is fully recovered into a liquid medium through the plate heat exchanger, so that hydrothermal liquid is obtained and stored in the hydrothermal liquid tank, and the hydrothermal liquid can be connected into a boiler water tank to serve as boiler water and can also serve as equipment cleaning water; fuel needed for heating the liquid medium is reduced, and cost is saved.

Description

[Technical field]

[0001] The utility model relates to the technical field of steam heat recovery, in particular to a steam condensate water heat recovery device. [Background technology]

[0002] At present, when the steamer is used, the water vapor will directly contact the product. In order to avoid the high-temperature condensed water generated during the steaming process containing rust, impurities, etc., the condensed water cannot be recycled and used, but needs to be discharged directly. However, the temperature of the condensed water is high and the heat energy is large. If it is discharged directly without being used, it will cause a waste of heat energy.

[0003] In view of this, it is necessary to provide a steam condensate heat energy recovery device to overcome the above-mentioned defects. [Contents of the utility model]

[0004] The utility model aims to provide a steam condensate heat energy recovery device, aiming at solving the problem of how to utilize the heat energy in high-temperature condensate water, improve energy utilization rate and save costs.

[0005] In order to achieve the above object, the utility model provides a steam condensate heat energy recovery device, comprising:

[0006] Liquid medium pipeline; the liquid medium pipeline includes a water inlet branch and a water outlet branch;

[0007] A steam condensate main pipe, the steam condensate main pipe comprising a steam condensate inlet pipe and a steam condensate outlet pipe respectively arranged at two ends;

[0008] A plate heat exchanger, the plate heat exchanger comprising a first pipeline and a second pipeline for reverse heat exchange, the steam condensate water inlet pipe and the steam condensate water outlet pipe are respectively connected to the two ends of the first pipeline; the water inlet branch and the water outlet branch are respectively connected to the two ends of the second pipeline;

[0009] A hot liquid tank, the hot liquid tank being in communication with the water outlet branch;

[0010] A valve branch, the valve branch is arranged at the bottom of the hot liquid tank;

[0011] An output branch, the output branch is connected to the valve branch, and the output branch is provided with a water pump;

[0012] The liquid medium entering from the water inlet branch flows through the second pipeline and exchanges heat with the high-temperature steam condensate in the first pipeline to obtain hot liquid and store it in the hot liquid tank; the water pump is used to drive the hot liquid in the hot liquid tank to flow outward.

[0013] In a preferred embodiment, the water inlet branch is provided with a sodium ion exchanger and a driving pump; the driving pump is arranged between the sodium ion exchanger and the plate heat exchanger; the sodium ion exchanger is used to convert raw water into softened water, and the driving pump is used to drive the softened water into the plate heat exchanger.

[0014] In a preferred embodiment, the water inlet branch is further provided with a first valve, and the first valve is used to control the on-off and flow rate of the water inlet branch.

[0015] In a preferred embodiment, the water outlet branch is provided with a second valve, and the second valve is used to control the on-off and flow rate of the water outlet branch.

[0016] In a preferred embodiment, the water outlet branch is also connected to a drainage branch at a position between the second valve and the second pipeline, a third valve is provided in the middle of the drainage branch, and a first drain port is provided at the end, and the third valve is used to control the on-off of the drainage branch.

[0017] In a preferred embodiment, a low liquid level sensor is provided at a preset position at the bottom of the hot liquid tank, and a high liquid level sensor is provided at a preset position at the top.

[0018] In a preferred embodiment, the hot liquid tank is provided with a temperature meter, and the temperature meter is used to monitor the temperature inside the hot liquid tank.

[0019] In a preferred embodiment, a fourth valve and a fifth valve are provided in the middle of the valve branch, and a second drain port is provided at the end, and the output branch is connected to the portion of the valve branch between the fourth valve and the fifth valve.

[0020] In a preferred embodiment, the end of the output branch is connected to a plurality of water pipes, and each water pipe is provided with a corresponding control valve.

[0021] The steam condensate heat energy recovery device provided by the utility model fully recovers the heat energy of the high-temperature steam condensate in the steam condensate main pipe into a liquid medium through a plate heat exchanger, thereby obtaining hot liquid, and storing the hot liquid in a hot liquid tank, which can be connected to a boiler water tank as boiler water or as equipment cleaning water, thereby reducing the fuel required for heating the liquid medium and saving costs.

Brief Description of the Drawings

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0023] Figure 1 This is a schematic structural diagram of the steam condensate heat energy recovery device provided by the utility model.

[0024] Reference numerals in the figure: 100, steam condensate heat energy recovery device;

[0025] 1. Water inlet branch; 2. Water outlet branch; 3. Valve branch; 4. Output branch; 5. Drainage branch; 6. Water pipe; 101. First valve; 102. Second valve; 103. Third valve; 104. Fourth valve; 105. Fifth valve; 106. Control valve;

[0026] 10. Liquid medium pipeline; 11. Ion exchanger; 12. Driving pump;

[0027] 20. Steam condensate main pipe; 21. Steam condensate inlet pipe; 22. Steam condensate outlet pipe;

[0028] 30. Plate heat exchanger; 31. First pipeline; 32. Second pipeline;

[0029] 40. Hot liquid tank; 41. Low liquid level sensor; 42. High liquid level sensor; 43. Temperature gauge;

[0030] 51. First drain outlet; 52. Second drain outlet; 53. Water pump. [Specific implementation method]

[0031] In order to make the purpose, technical solution and beneficial technical effect of the utility model clearer, the utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. It should be understood that the specific implementation methods described in this specification are only for explaining the utility model, and are not intended to limit the utility model.

[0032] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and are not intended to limit the utility model. As used in this utility model specification and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0033] It should be further understood that the term “and / or” used in the present specification and the appended claims refers to any combination and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0034] In an embodiment of the utility model, a steam condensate heat energy recovery device 100 is provided, which is used to fully recover the heat energy of the high-temperature steam condensate generated by the steam-refining machine during the steam-refining process through a liquid medium heat exchange method, and then reuse the recovered heat energy to improve energy utilization and save heating costs. The liquid medium includes but is not limited to: tap water, softened water, and other heatable fluid media.

[0035] like Figure 1 As shown, the steam condensate heat energy recovery device 100 includes: a liquid medium pipeline 10, a steam condensate main pipe 20, a plate heat exchanger 30, a hot liquid tank 40, a valve branch 3, and an output branch 4.

[0036] Specifically, the liquid medium pipeline 10 includes an inlet branch 1 and an outlet branch 2. Further, the inlet branch 1 is provided with a sodium ion exchanger 11 and a drive pump 12. The sodium ion exchanger 11 can convert raw water such as tap water into softened water without calcium and magnesium ions by ion exchange. The drive pump 12 is provided between the sodium ion exchanger 11 and the plate heat exchanger 30, and is used to drive the softened water into the plate heat exchanger 30.

[0037] The water inlet branch 1 is also provided with a first valve 101. The first valve 101 is used to control the on-off and flow rate of the water inlet branch 1. The water outlet branch 2 is provided with a second valve 102. The second valve 102 is used to control the on-off and flow rate of the water outlet branch 2.

[0038] In this embodiment, the steam condensate main pipe 20 includes a steam condensate inlet pipe 21 and a steam condensate outlet pipe 22 respectively disposed at both ends. The steam condensate inlet pipe 21 is used for the entry of high-temperature steam condensate generated during the refining process, and the steam condensate outlet pipe 22 is used for the discharge of condensate after heat exchange and cooling.

[0039] like Figure 1 As shown, the plate heat exchanger 30 includes a first pipeline 31 and a second pipeline 32 for reverse heat exchange, that is, the liquid in the first pipeline 31 and the second pipeline 32 flow in opposite directions to perform reverse heat exchange. The steam condensate inlet pipe 21 and the steam condensate outlet pipe 22 are respectively connected to the two ends of the first pipeline 31. The water inlet branch 1 and the water outlet branch 2 are respectively connected to the two ends of the second pipeline 32. Therefore, the liquid medium entering from the water inlet branch 1 flows through the second pipeline 32 and exchanges heat with the high-temperature steam condensate in the first pipeline 31, thereby obtaining hot liquid.

[0040] Furthermore, the outlet branch 2 is connected to the drainage branch 5 at a position between the second valve 102 and the second pipeline 32. The drainage branch 5 is provided with a third valve 103 in the middle and a first drainage port 51 at the end. The third valve 103 is used to control the on-off of the drainage branch 5. Therefore, the second pipeline 32 can be cleaned by opening the third valve 103, and then the cleaned sewage is discharged through the first drainage port 51.

[0041] In the embodiment of the utility model, the hot liquid tank 40 is communicated with the water outlet branch 2 , so that the hot liquid obtained after heat exchange is stored in the hot liquid tank 40 .

[0042] Furthermore, a low liquid level sensor 41 is provided at a preset position at the bottom of the hot liquid tank 40, and a high liquid level sensor 42 is provided at a preset position at the top, so as to monitor and determine whether the capacity in the hot liquid tank 40 exceeds the normal capacity range. Furthermore, the hot liquid tank 40 is provided with a thermometer 43, which is used to monitor the temperature inside the hot liquid tank 40, thereby measuring and monitoring the temperature of the hot liquid.

[0043] In this embodiment, the valve branch 3 is arranged at the bottom of the hot liquid tank 40. The output branch 4 is connected to the valve branch 3, and the output branch 4 is provided with a water pump 53. The water pump 53 is used to drive the hot liquid in the hot liquid tank 40 to flow outward, and can be connected to the boiler water tank as boiler water, and can also be used as equipment cleaning water.

[0044] Specifically, a fourth valve 104 and a fifth valve 105 are provided in the middle of the valve branch 3, and a second drain port 52 is provided at the end. The fifth valve 105 is located below the fourth valve 104. The output branch 4 is connected to the portion of the valve branch 3 between the fourth valve 104 and the fifth valve 105. When normal water use is required, the fourth valve 104 is opened, the fifth valve 105 is closed, and the water pump 53 is operated to make the hot liquid in the hot liquid tank 40 flow out through the output branch 4; when the hot liquid tank 40 needs to be cleaned or emptied, the fourth valve 104 and the fifth valve 105 are opened, and the water pump 53 is closed, so that the sewage or residual water in the hot liquid tank 40 is directly discharged outward through the second drain port 52.

[0045] Furthermore, the end of the output branch 4 is connected to a plurality of water pipes 6, and each water pipe 6 is provided with a corresponding control valve 106. Figure 1 In the embodiment, there are three water pipes 6 , two of which are connected to two boiler water tanks respectively, and the other one is for equipment cleaning water. The control valve 106 is used to control the corresponding water pipe 6 individually.

[0046] In summary, the steam condensate heat energy recovery device 100 provided by the utility model fully recovers the heat energy of the high-temperature steam condensate in the steam condensate main pipe 20 into the liquid medium through the plate heat exchanger 30, thereby obtaining hot liquid, and stores the hot liquid in the hot liquid tank 40, which can be connected to the boiler water tank as boiler water or as equipment cleaning water, thereby reducing the fuel required for heating the liquid medium and saving costs.

[0047] The present invention is not limited to what is described in the specification and implementation modes, and therefore, additional advantages and modifications can be easily realized by those familiar with the art. Therefore, without departing from the spirit and scope of the general concept defined by the claims and their equivalents, the present invention is not limited to the specific details, representative devices, and illustrative examples shown and described herein.

Claims

1. A steam condensate heat recovery device, characterized in that: include: Liquid medium pipeline; the liquid medium pipeline includes a water inlet branch and a water outlet branch; A steam condensate main pipe, the steam condensate main pipe comprising a steam condensate inlet pipe and a steam condensate outlet pipe respectively arranged at two ends; A plate heat exchanger, the plate heat exchanger comprising a first pipeline and a second pipeline for reverse heat exchange, the steam condensate water inlet pipe and the steam condensate water outlet pipe are respectively connected to the two ends of the first pipeline; the water inlet branch and the water outlet branch are respectively connected to the two ends of the second pipeline; A hot liquid tank, the hot liquid tank being in communication with the water outlet branch; A valve branch, wherein the valve branch is arranged at the bottom of the hot liquid tank; An output branch, the output branch is connected to the valve branch, and the output branch is provided with a water pump; The liquid medium entering from the water inlet branch flows through the second pipeline and exchanges heat with the high-temperature steam condensate in the first pipeline to obtain hot liquid and store it in the hot liquid tank; the water pump is used to drive the hot liquid in the hot liquid tank to flow outward.

2. The steam condensate heat recovery device according to claim 1, characterized in that: The water inlet branch is provided with a sodium ion exchanger and a driving pump; the driving pump is arranged between the sodium ion exchanger and the plate heat exchanger; the sodium ion exchanger is used to convert raw water into softened water, and the driving pump is used to drive the softened water into the plate heat exchanger.

3. The steam condensate heat recovery device according to claim 2, characterized in that: The water inlet branch is also provided with a first valve, and the first valve is used to control the on-off and flow rate of the water inlet branch.

4. The steam condensate heat recovery device according to claim 1, characterized in that: The water outlet branch is provided with a second valve, and the second valve is used to control the on-off and flow rate of the water outlet branch.

5. The steam condensate heat recovery device according to claim 4, characterized in that: The outlet branch is also connected to a drainage branch at a position between the second valve and the second pipeline. A third valve is provided in the middle of the drainage branch, and a first drainage port is provided at the end. The third valve is used to control the on-off of the drainage branch.

6. The steam condensate heat recovery device according to claim 1, characterized in that: A low liquid level sensor is provided at a preset position at the bottom of the hot liquid tank, and a high liquid level sensor is provided at a preset position at the top.

7. The steam condensate heat recovery device according to claim 6, characterized in that: The hot liquid tank is provided with a temperature meter, and the temperature meter is used to monitor the temperature inside the hot liquid tank.

8. The steam condensate heat recovery device according to claim 1, characterized in that: A fourth valve and a fifth valve are provided in the middle of the valve branch, and a second drain port is provided at the end. The output branch is connected to the portion of the valve branch between the fourth valve and the fifth valve.

9. The steam condensate heat recovery device according to claim 1, characterized in that: The end of the output branch is connected to a plurality of water pipes, and each water pipe is provided with a corresponding control valve.

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