Condensate water waste heat utilization device

By designing a condensate waste heat recovery device in an industrial air conditioning system, and by using heat exchange tubes to increase the flow path and a filtration mechanism to intercept impurities, the problems of low condensate waste heat recovery rate and insufficient heat exchange are solved, achieving efficient waste heat recovery and pure water delivery.

CN223500186UActive Publication Date: 2025-10-31BEIJING ELECTRIC INTELLIGENT ENERGY CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
CN202423085827.5
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-13
Publication Date
2025-10-31
Estimated Expiration
2034-12-13

AI Technical Summary

Technical Problem

In existing industrial air conditioning systems, the waste heat utilization rate of condensate is low and the heat exchange is insufficient, resulting in energy waste and low efficiency.

Method used

A device for utilizing waste heat from condensate was designed, comprising a tank, a baffle, a condensate heat exchange mechanism, and a filtration mechanism. By setting heat exchange tubes to increase the flow path on both sides of the baffle and using a filter screen to intercept impurities, more efficient heat exchange and pure water delivery are achieved.

Benefits of technology

It improves the utilization rate of waste heat, reduces energy waste, enhances heat exchange efficiency, and ensures the purity of condensate, meeting the requirements of energy conservation and emission reduction.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN223500186U_ABST
    Figure CN223500186U_ABST
Patent Text Reader

Abstract

The utility model discloses a condensate water waste heat utilization device, which relates to the technical field of waste heat recycling and comprises a tank body, a cover plate is arranged at one end of the tank body, a plurality of supporting legs are arranged at the bottom of the outer side of the tank body, a partition plate is arranged in the tank body, the cross section of the partition plate is of an L-shaped structure, and a condensate water heat exchange mechanism is arranged on the outer side of the partition plate. A filtering mechanism is arranged at one end of the partition; a water inlet pipe is arranged at the outer top end of one end of the tank body, a material collecting pipe is arranged at the outer bottom end of one end of the tank body, and a water outlet pipe is arranged at the outer bottom end of the tank body and located on one side of the material collecting pipe. By arranging the condensate water heat exchange mechanism, waste heat of condensate water is effectively utilized, the heat exchange pipes are arranged on the two sides of the partition plate, the flowing path of liquid in the heat exchange pipes can be increased, heat exchange can be more fully conducted, and then the heat exchange efficiency can be remarkably improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This utility model relates to the field of waste heat recovery and utilization technology, specifically to a device for utilizing waste heat from condensate. Background Technology

[0002] Industrial air conditioning systems are designed to maintain a constant temperature and humidity environment and require continuous operation. The system consists of fresh air, return air, filtration, surface cooling, heating, humidification, and supply air sections. Currently, most industrial air conditioning systems use copper tube aluminum fin convection radiators as heaters. Steam flows through the copper tubes, heating the aluminum fins, and air is heated by convection as it passes through the casing. During this process, the steam is converted into condensate, which is discharged into a condensate tank via a steam trap. However, due to the excessively long piping, there is significant energy loss during condensate recovery and reuse, resulting in low waste heat utilization. Therefore, there is an urgent need for a condensate waste heat recovery device to improve waste heat utilization, reduce energy waste, and achieve more efficient and environmentally friendly industrial air conditioning system operation.

[0003] Chinese patent CN219390023U discloses an air conditioning waste heat recovery device, including a cooling tower with a heat dissipation coil. The heat dissipation coil has hot water and cold water pipes, a water storage tank on the hot water pipe, and a return water pipe connected to the cold water pipe. The return water pipe has a switch to maintain the water temperature in the storage tank, eliminating the need for reheating when water is needed, thus reducing power consumption. However, this air conditioning waste heat recovery device uses a spray method to exchange heat between the liquid and the heat dissipation coil. This method results in insufficient and uneven contact between the liquid and the heat dissipation coil, affecting the efficiency of heat transfer and leading to incomplete heat exchange.

[0004] There are currently no effective solutions to the problems in the relevant technologies. Utility Model Content

[0005] (a) Technical problems to be solved

[0006] In view of the shortcomings of the existing technology, this utility model provides a condensate waste heat utilization device, which has the advantage of more complete heat exchange, thereby solving the problem of insufficient heat exchange.

[0007] (II) Technical Solution

[0008] To achieve the aforementioned advantages of more thorough heat exchange, the specific technical solution adopted by this utility model is as follows:

[0009] A condensate waste heat recovery device includes a tank, a cover plate at one end of the tank, several support legs at the bottom of the outer side of the tank, a baffle plate inside the tank with an L-shaped cross-section, a condensate heat exchange mechanism on the outer side of the baffle plate, and a filter mechanism at one end of the baffle plate; an inlet pipe at the top of the outer side of one end of the tank, a collection pipe at the bottom of the outer side of one end of the tank, and an outlet pipe at the bottom of the outer side of the tank, located on the side of the collection pipe.

[0010] Furthermore, in order to effectively utilize the waste heat of the condensate, heat exchange tubes are installed on both sides of the partition. This increases the flow path of the liquid inside the heat exchange tubes, thereby enabling more thorough heat exchange and significantly improving heat exchange efficiency. The condensate heat exchange mechanism includes shells symmetrically arranged at the top and bottom of the partition, with the shells having an arc-shaped cross-section. One shell has a drain pipe penetrating the outside of the tank at its top, and the other shell has a water inlet pipe penetrating the outside of the tank at its bottom. The sidewalls of the two sets of shells are connected by several heat exchange tubes, with a connecting pipe penetrating the outside of one of the shells.

[0011] Furthermore, in order to install the filter mechanism, an installation groove that matches the filter mechanism is provided on the outer side of one end of the tank. A sealing ring placement groove is provided inside the installation groove, and a lifting lug is provided at both ends of the installation groove.

[0012] Furthermore, to achieve condensate filtration, a filter screen effectively intercepts impurities and particulate matter in the condensate, ensuring the purity of the condensate entering the tank. Simultaneously, the filter screen can be easily disassembled using bolts, improving the efficiency of filter screen maintenance. The filtration mechanism includes an arc-shaped mounting plate installed on the inner wall of the mounting groove. A filter screen is installed at the bottom of the inner wall of the arc-shaped mounting plate. Lifting lugs are installed at both ends of the arc-shaped mounting plate. A sealing ring is installed on the outer side of the arc-shaped mounting plate, consisting of two sets of symmetrically arranged arc-shaped sealing gaskets and two sets of strip-shaped sealing gaskets at the bottom ends of the arc-shaped sealing gaskets. Lifting lugs one and two are fixedly connected by bolts.

[0013] (III) Beneficial Effects

[0014] Compared with the prior art, this utility model provides a condensate waste heat recovery device, which has the following beneficial effects:

[0015] (1) The structure of this utility model is reasonable and reliable. The condensate waste heat utilization device can collect the waste heat in the condensate and convert it into usable heat energy for heating or preheating in other links, reducing energy waste, improving energy utilization rate, and meeting the environmental protection requirements of energy conservation and emission reduction.

[0016] (2) By setting up a condensate heat exchange mechanism, the waste heat of the condensate can be effectively utilized. By setting the heat exchange tubes on both sides of the partition, the flow path of the liquid inside the heat exchange tubes can be increased, and heat exchange can be carried out more fully, thereby significantly improving the heat exchange efficiency.

[0017] (3) By setting up a filtration mechanism, the condensate is filtered. The filter screen effectively intercepts impurities and particulate matter in the condensate, ensuring the purity of the condensate entering the tank. At the same time, the filter screen can be easily disassembled by the bolts, improving the work efficiency of the staff in maintaining the filter screen. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic diagram of the structure of the condensate waste heat recovery device according to an embodiment of the present utility model;

[0020] Figure 2 This is a cross-sectional view of the condensate waste heat recovery device according to an embodiment of the present utility model;

[0021] Figure 3 This is a three-dimensional assembly drawing of the condensate waste heat recovery device according to an embodiment of the present utility model;

[0022] Figure 4 yes Figure 3 A magnified view of a section at point A in the middle;

[0023] Figure 5 yes Figure 3 A magnified view of a section at point B in the middle;

[0024] Figure 6 This is a schematic diagram of the condensate heat exchange mechanism in the condensate waste heat utilization device according to an embodiment of the present utility model.

[0025] In the picture:

[0026] 1. Tank body; 101. Mounting groove; 102. Sealing ring placement groove; 103. Lifting lug one; 2. Cover plate; 3. Support leg; 4. Partition plate; 5. Condensate heat exchange mechanism; 501. Shell; 502. Drain pipe; 503. Water inlet pipe; 504. Heat exchange pipe; 505. Connecting pipe; 6. Filtration mechanism; 601. Arc-shaped mounting plate; 602. Filter screen; 603. Lifting lug two; 604. Sealing ring; 605. Bolt; 7. Water inlet pipe; 8. Collection pipe; 9. Water outlet pipe. Detailed Implementation

[0027] To further illustrate the various embodiments, the present invention provides accompanying drawings, which are part of the disclosure of the present invention. These drawings are mainly used to illustrate the embodiments and can be used in conjunction with the relevant descriptions in the specification to explain the operating principles of the embodiments. With reference to these contents, those skilled in the art should be able to understand other possible implementation methods and the advantages of the present invention. The components in the figures are not drawn to scale, and similar component symbols are usually used to represent similar components.

[0028] According to an embodiment of the present invention, a device for utilizing waste heat from condensate is provided.

[0029] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments, such as... Figures 1-6 As shown, the condensate waste heat utilization device according to an embodiment of the present invention includes a tank 1, a cover plate 2 at one end of the tank 1, a plurality of support legs 3 at the bottom outer side of the tank 1, a partition plate 4 inside the tank 1, the partition plate 4 having an L-shaped cross-section, a condensate heat exchange mechanism 5 at the outer side of the partition plate 4, and a filter mechanism 6 at one end of the partition plate 4; an inlet pipe 7 at the top outer side of one end of the tank 1, a collection pipe 8 at the bottom outer side of one end of the tank 1, and an outlet pipe 9 at the bottom outer side of the tank 1 and on one side of the collection pipe 8.

[0030] Furthermore, in practical applications, the side wall of the aforementioned partition 4 is tightly fitted to the inner wall of the tank 1, which can prevent water from seeping out from both sides of the partition 4.

[0031] The cover plate 2 and the tank body 1 are fixedly connected by several screws.

[0032] With the help of the above-mentioned technical solution of this utility model, the structure of this utility model is reasonable and reliable. The condensate waste heat recovery device can recover the waste heat in the condensate and convert it into usable heat energy for heating or preheating in other processes, thereby reducing energy waste, improving energy utilization efficiency, and meeting the environmental protection requirements of energy conservation and emission reduction.

[0033] In one embodiment, the condensate heat exchange mechanism 5 includes shells 501 symmetrically arranged at the top and bottom of the partition 4, and the cross-section of the shells 501 is arc-shaped. One shell 501 has a drain pipe 502 penetrating the outside of the tank 1 at its top, and the other shell 501 has a water inlet pipe 503 penetrating the outside of the tank 1 at its bottom. The side walls of the two sets of shells 501 are connected by several heat exchange pipes 504. A connecting pipe 505 is provided through the outside of one shell 501, thereby realizing the effective utilization of the waste heat of the condensate. By arranging the heat exchange pipes 504 on both sides of the partition 4, the flow path of the liquid inside the heat exchange pipes 504 can be increased, enabling more complete heat exchange and thus significantly improving the heat exchange efficiency.

[0034] The working principle of the condensate heat exchange mechanism 5 is as follows: cold water is introduced into the inlet pipe 503, and then the cold water enters the heat exchange tube 504 through one of the shells 501. Then it can transfer heat with the condensate, which raises the temperature of the cold water in the heat exchange tube 504. Then the cold water enters the other shell 501 and is discharged through the drain pipe 502, so that the heated cold water can be reused.

[0035] In one embodiment, for the tank 1 described above, an installation groove 101 that cooperates with the filter mechanism 6 is provided on the outer side of one end of the tank 1. A sealing ring placement groove 102 is provided inside the installation groove 101. Both ends of the installation groove 101 are provided with lifting lugs 103, thereby realizing the cooperative installation of the filter mechanism 6.

[0036] In one embodiment, the filter mechanism 6 includes an arc-shaped mounting plate 601 disposed on the inner wall of the mounting groove 101. A filter screen 602 is disposed at the bottom end of the inner wall of the arc-shaped mounting plate 601. In specific applications, the filter screen 602 and the arc-shaped mounting plate 601 can be fixedly connected or movably connected. Lifting lugs 603 are provided at the bottom of both ends of the arc-shaped mounting plate 601, and a sealing ring 604 is provided on the outer side of the arc-shaped mounting plate 601. The sealing ring 604 consists of two sets of symmetrical... The system consists of an arc-shaped sealing gasket and two sets of strip-shaped sealing gaskets at the bottom ends of the arc-shaped sealing gasket. The first lifting lug 103 and the second lifting lug 603 are fixedly connected by bolts 605, thereby achieving the filtration of condensate. The filter screen 602 effectively intercepts impurities and particulate matter in the condensate, ensuring the purity of the condensate entering the tank 1. At the same time, the bolts 605 allow for easy disassembly of the filter screen 602, improving the efficiency of the staff in maintaining the filter screen 602.

[0037] The working principle of the filter mechanism 6 is as follows: When the filter mechanism 6 needs maintenance, the bolts 605 can be removed, and then the arc-shaped mounting plate 601 can be taken out from the mounting groove 101, and then the filter screen 602 can be cleaned and maintained.

[0038] To facilitate understanding of the above-mentioned technical solutions of this utility model, the working principle or operation method of this utility model in actual process will be described in detail below.

[0039] In practical application, firstly, the condensate generated by the air conditioner enters the tank 1 through the inlet pipe 7. Then, the condensate passes through the filter mechanism 6 (the working principle of the filter mechanism 6 is as described above) and enters the condensate heat exchange mechanism 5 (the working principle of the condensate heat exchange mechanism 5 is as described above). Impurities or particles in the filter mechanism 6 are filtered out and accumulate at the bottom of the tank 1, and then fall into the collection pipe 8 for collection. In addition, cold water that needs heat exchange can be introduced into the condensate heat exchange mechanism 5, and then the cold water will exchange heat with the condensate to achieve heat recovery. After the heat recovery is completed, the condensate flows out through the outlet pipe 9.

[0040] In summary, with the help of the above-mentioned technical solution of this utility model, the structure of this utility model is reasonable and reliable. This condensate waste heat utilization device can collect the waste heat in the condensate and convert it into usable heat energy for heating or preheating in other processes, reducing energy waste, improving energy utilization efficiency, and meeting the environmental protection requirements of energy conservation and emission reduction. By setting the condensate heat exchange mechanism 5, the waste heat of the condensate is effectively utilized. By setting the heat exchange tubes 504 on both sides of the partition 4, the flow path of the liquid inside the heat exchange tubes 504 can be increased, enabling more complete heat exchange and thus significantly improving heat exchange efficiency. By setting the filtration mechanism 6, the condensate is filtered. The filter screen 602 effectively intercepts impurities and particulate matter in the condensate, ensuring the purity of the condensate entering the tank 1. At the same time, the filter screen 602 can be easily disassembled by the bolts 605, improving the work efficiency of the staff in maintaining the filter screen 602.

[0041] In this utility model, unless otherwise explicitly specified and limited, the terms "installation", "setting", "connection", "fixing", "screw connection", etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components or the interaction between two components. Unless otherwise explicitly limited, those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0042] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A device for utilizing waste heat from condensate water, characterized in that, Includes a tank (1), one end of which is provided with a cover plate (2), several support legs (3) are provided on the bottom of the outer side of the tank (1), a partition plate (4) is provided inside the tank (1), the partition plate (4) has an L-shaped cross-section, a condensate heat exchange mechanism (5) is provided on the outer side of the partition plate (4), and a filter mechanism (6) is provided at one end of the partition plate (4); A water inlet pipe (7) is provided at the top outer side of one end of the tank (1), a material collection pipe (8) is provided at the bottom outer side of one end of the tank (1), and a water outlet pipe (9) is provided at the bottom outer side of the tank (1) and on one side of the material collection pipe (8).

2. The condensate waste heat recovery device according to claim 1, characterized in that, The condensate heat exchange mechanism (5) includes a shell (501) symmetrically arranged at the top and bottom of the partition (4), and the cross-section of the shell (501) is an arc-shaped structure. One of the shells (501) has a drain pipe (502) that penetrates the outside of the tank (1) at its top, and the other shell (501) has a water inlet pipe (503) that penetrates the outside of the tank (1) at its bottom. The sidewalls of the two sets of housings (501) are connected by a number of heat exchange tubes (504).

3. The condensate waste heat recovery device according to claim 2, characterized in that, A connecting pipe (505) is provided through the outer side of one of the housings (501).

4. The condensate waste heat recovery device according to claim 1, characterized in that, The outer side of one end of the tank (1) is provided with an installation groove (101) that cooperates with the filter mechanism (6). The inside of the installation groove (101) is provided with a sealing ring placement groove (102). Both ends of the installation groove (101) are provided with a lifting lug (103).

5. A condensate waste heat recovery device according to claim 4, characterized in that, The filtering mechanism (6) includes an arc-shaped mounting plate (601) disposed on the inner wall of the mounting groove (101). A filter screen (602) is disposed at the bottom of the inner wall of the arc-shaped mounting plate (601). Two lifting lugs (603) are disposed at the bottom of both ends of the arc-shaped mounting plate (601). A sealing ring (604) is disposed on the outer side of the arc-shaped mounting plate (601).

6. The condensate waste heat recovery device according to claim 5, characterized in that, The sealing ring (604) consists of two sets of symmetrically arranged arc-shaped sealing gaskets and two sets of strip-shaped sealing gaskets at the bottom ends of the arc-shaped sealing gaskets.

7. A condensate waste heat recovery device according to claim 5 or 6, characterized in that, The first lifting lug (103) and the second lifting lug (603) are fixedly connected by bolts (605).

Citation Information

Patent Citations

  • Air conditioner waste heat recovery device

    CN219390023U