Condensate water recycling equipment for assembly type heat exchange unit

Abstract

The utility model discloses condensate water recycling equipment for an assembly type heat exchange unit, relates to the technical field of heat exchange units, and aims to solve the problems that waste heat in condensate water is not recycled, the heat exchange efficiency of the heat exchange unit is easy to reduce when the condensate water is circulated into the heat exchange unit, the condensate water is not filtered, and the heat exchange efficiency is low in the prior art. In order to solve the problems that in the prior art, recycled condensate water directly circulates into a heat exchange unit, impurities in the condensate water block a pipeline of the heat exchange unit, and practicability is low, according to the scheme, the waste heat recovery device comprises a base and an installation box, the installation box comprises a metal plate box body connected to the outer wall of the top of the base through bolts, and a waste heat recovery mechanism is arranged in the metal plate box body. The residual heat of the condensate water in the heat exchange unit can be recovered, the situation that the heat exchange efficiency of the heat exchange unit is reduced due to the waste heat of the condensate water is prevented, impurities in the condensate water can be filtered out, the impurities are prevented from blocking a pipeline of the heat exchange unit, and the practicability is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat exchange units, in particular to condensed water recovery and circulation equipment for assembled heat exchange units. Background Art

[0002] The heat exchanger unit is composed of a heat exchanger, a temperature control valve group, a steam trap group (when the heat medium is steam), a circulating pump, an electric control cabinet, a base, pipelines, valves, instruments, etc., and can be equipped with an expansion tank, water treatment equipment, water pump frequency conversion control, a temperature control valve, remote communication control, etc., to form a complete heat exchange station. During the operation of the heat exchanger unit, the condensed water in the heat exchanger unit needs to be recovered.

[0003] After searching, a Chinese patent (application number is "202023213357.8") discloses "a condensed water waste heat recovery integrated heat exchanger unit". The above-mentioned heat exchanger unit includes a wheel skateboard and a rubber pad. The wheel skateboard is connected to the rubber pad, and a spring is arranged inside the rubber pad. A condensed water recovery pump is connected to the top of the rubber pad, and a flange is arranged on the left side of the condensed water recovery pump. One end of the flange is connected to a water pipe, and one end of the water pipe is connected to a water inlet. A heat exchanger container is arranged on the right side of the water inlet. A baffle is installed inside the heat exchanger container, and an outlet pipe is connected to the top of the heat exchanger container. A condensed water outlet is arranged on the right side of the heat exchanger container, and a condensed water inlet is connected below the condensed water outlet. However, the above-mentioned heat exchanger unit has the following problems when recovering condensed water:

[0004] 1. The waste heat in the condensed water is not recovered and utilized. When the condensed water circulates into the heat exchange unit, it is easy to cause the heat exchange efficiency of the heat exchange unit to decrease;

[0005] 2. The condensed water is not filtered, and the recovered condensed water is directly circulated into the heat exchanger unit, causing impurities in the condensed water to clog the heat exchanger unit pipes, resulting in low practicality. Utility Model Content

[0006] The utility model provides a condensate recovery and circulation device for an assembled heat exchanger unit, which solves the problem proposed in the comparative document that the heat exchanger unit does not recover and utilize the waste heat in the condensate, and the heat exchange efficiency of the heat exchanger unit is easily reduced when the condensate is circulated into the heat exchanger unit. The condensate is not filtered, and the recovered condensate is directly circulated into the heat exchanger unit, causing impurities in the condensate to clog the heat exchanger unit pipes, resulting in low practicality.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A condensed water recovery circulation device for an assembled heat exchanger unit comprises a base and an installation box, wherein the installation box comprises a sheet metal box body connected to the outer wall of the top of the base by bolts, a waste heat recovery mechanism is arranged in the sheet metal box body, and the waste heat recovery mechanism comprises a fixed block fixed on the inner wall of the middle of the sheet metal box body, a heat exchange cylinder fixed in the fixed block, a heat exchange tube at both ends respectively passing through and fixed on the outer wall of one side of the heat exchange cylinder, and a condensed water recovery tube at both ends respectively passing through and fixed on the outer wall of one side of the heat exchange cylinder, a transmission mechanism is provided on the heat exchange cylinder, and the transmission mechanism comprises a transmission motor connected to the outer wall of the top of the sheet metal box body by bolts, a rotating shaft connected to the outer wall of the bottom end of the output shaft of the transmission motor by a coupling, and a rotating shaft fixed on the rotating shaft. A driving gear on the outer wall of the rotating shaft and a mounting plate fixed on the inner wall of the upper part of the heat exchange cylinder, two stirring assemblies are provided on the mounting plate, the stirring assembly includes a transmission shaft that passes through and is connected to the outer wall of the top of the mounting plate through a bearing, a driven gear fixed on the outer wall of the upper part of the transmission shaft and a number of stirring blades respectively fixed on the outer wall of the transmission shaft, a mounting mechanism is provided on the top of the base, the mounting mechanism includes a lower filter cartridge with a return pipe fixed on the inner wall of the bottom, a connecting frame fixed on the outer wall of the top end of the lower filter cartridge and an upper filter cartridge fixed on the outer wall of the top of the connecting frame, a filter assembly is provided in the connecting frame, the filter assembly includes a mounting frame slidably sleeved in the connecting frame and three filter screens respectively embedded in the mounting frame.

[0009] Preferably, a sheet metal rear shell is connected to an outer wall of one side of the sheet metal box through rivets, and two box doors are hinged on the outer wall of one side of the sheet metal box.

[0010] Preferably, a liquid inlet pipe is fixedly provided on the upper inner wall of one side of the heat exchange tube, and a liquid discharge pipe is fixedly provided on the bottom inner wall of the heat exchange tube. An opening is provided on the outer wall of one side of the heat exchange tube, and an observation window is embedded in the opening. Two support seats are connected to the bottom inner wall of the sheet metal box by bolts, and the bottom of the heat exchange tube is fixedly provided on the top outer walls of the two support seats.

[0011] Through the above scheme, the condensed water in the heat exchange unit is input through the lower end of the condensed water recovery pipe. The condensed water rises in the condensed water recovery pipe and exchanges heat with the heat exchange liquid in the heat exchange cylinder. The heat exchange liquid and the heat exchange liquid in the heat exchange tube exchange heat again, and then the heat of the condensed water is exchanged to the heat exchange liquid in the heat exchange tube, and the heat is reused.

[0012] Preferably, a mounting bracket is fixed on the top outer wall of the heat exchange cylinder, and the top of the mounting bracket abuts against the top inner wall of the sheet metal box, and the bottom end of the rotating shaft passes through and is connected to the bottom outer wall of the mounting plate through a bearing.

[0013] Preferably, the driven gear and the driving gear mesh with each other to form a transmission fit, a fixed plate is fixed on the lower inner wall of the heat exchange cylinder, and the bottom end of the transmission shaft passes through and is connected to the bottom outer wall of the fixed plate through a bearing.

[0014] Through the above scheme, the output shaft of the transmission motor drives the rotating shaft and the driving gear to rotate, and the driving gear drives the two driven gears, two transmission shafts and several stirring blades to rotate. The stirring blades stir the heat exchange fluid in the heat exchange cylinder, so that the heat exchange fluid fully contacts the condensate recovery pipe and the heat exchange pipe and performs heat exchange.

[0015] Preferably, two support plates are fixed on the top outer wall of the base, and the bottom of the lower filter cartridge is respectively fixed on the top outer walls of the two support plates, a delivery pipe is fixed on the top inner wall of the upper filter cartridge, connecting pipes are fixed on the outer walls of both ends of the heat exchange pipe and the condensate recovery pipe, and the delivery pipe is connected to the outer wall of the connecting pipe at the upper end of the condensate recovery pipe through a flange.

[0016] Preferably, a mounting block is fixedly provided on an outer wall of one side of the mounting frame, and the mounting block is connected to the outer wall of one side of the connecting frame by bolts.

[0017] Through the above scheme, the condensed water after heat exchange is transported to the upper filter cylinder through the delivery pipe, and the condensed water drips onto the three sets of filter screens, which filter the impurities in the condensed water. The filtered condensed water is transported back to the heat exchange unit through the return pipe. The mounting frame and filter screen can be removed by removing the bolts on the fixing block, and the impurities remaining on the filter screen can be cleaned.

[0018] The beneficial effects of the utility model are:

[0019] 1. The condensed water in the heat exchange unit is input into the lower end of the condensed water recovery pipe. The condensed water rises in the condensed water recovery pipe and exchanges heat with the heat exchange fluid in the heat exchange cylinder. The heat exchange fluid and the heat exchange fluid in the heat exchange tube exchange heat again, and then the heat of the condensed water is exchanged to the heat exchange fluid in the heat exchange tube, and the heat is reused. The residual heat of the condensed water in the heat exchange unit can be recovered to prevent the waste heat of the condensed water from reducing the heat exchange efficiency of the heat exchange unit.

[0020] 2. The delivery pipe delivers the condensed water after heat exchange to the upper filter cylinder. The condensed water drips onto three sets of filter screens, which filter the impurities in the condensed water. The filtered condensed water is delivered to the heat exchanger unit again through the return pipe. The mounting frame and filter screen can be taken out by removing the bolts on the fixing block, and the impurities remaining on the filter screen can be cleaned. The impurities in the condensed water can be filtered to prevent impurities from clogging the pipes of the heat exchanger unit, thereby improving practicality.

[0021] In summary, the utility model can recover the residual heat of the condensed water in the heat exchanger unit, prevent the residual heat of the condensed water from reducing the heat exchange efficiency of the heat exchanger unit, and can filter impurities in the condensed water to prevent impurities from clogging the pipes of the heat exchanger unit, thereby improving practicality. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall main cross-sectional structure of a condensate recovery and circulation device for an assembled heat exchange unit proposed in the present invention.

[0023] Figure 2 This is a schematic diagram of the overall cross-sectional structure of a condensate recovery and circulation device for an assembled heat exchange unit proposed in the present utility model.

[0024] Figure 3 This is a schematic diagram of the main structure of an installation box for a condensate recovery and circulation device for an assembled heat exchange unit proposed in the present invention.

[0025] Figure 4 This is an exploded diagram of the waste heat recovery mechanism of the condensate recovery circulation equipment for the assembled heat exchange unit proposed in the utility model.

[0026] Figure 5 This is a schematic diagram of the main structure of the transmission mechanism and stirring assembly of the condensate recovery and circulation equipment for the assembled heat exchange unit proposed by the utility model.

[0027] Figure 6 This is a schematic diagram of the main structure of the installation mechanism of a condensate recovery and circulation device for an assembled heat exchange unit proposed in the present invention.

[0028] Figure 7 This is an exploded view of the filter assembly of the condensate recovery and circulation equipment for the assembled heat exchange unit proposed in the utility model.

[0029] In the figure: 1. Base; 2. Installation box; 201. Sheet metal box body; 202. Sheet metal rear shell; 203. Box door; 3. Waste heat recovery mechanism; 301. Fixing block; 302. Heat exchange cylinder; 303. Support seat; 304. Heat exchange tube; 305. Condensate recovery pipe; 4. Transmission mechanism; 401. Mounting frame; 402. Transmission motor; 403. Rotating shaft; 404. Driving gear; 405. Mounting plate; 5. Stirring assembly; 501. Transmission shaft; 502. Driven gear; 503. Stirring blade; 6. Fixing plate; 7. Mounting mechanism; 701. Lower filter cylinder; 702. Support plate; 703. Connecting frame; 704. Upper filter cylinder; 705. Delivery pipe; 8. Filter assembly; 801. Mounting frame; 802. Mounting block; 803. Filter screen. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0031] Example 1, with reference to Figure 1-4 A condensate recovery and circulation device for an assembled heat exchange unit includes a base 1 and an installation box 2. The installation box 2 includes a sheet metal box body 201 connected to the outer wall of the top of the base 1 by bolts. The inner wall of the sheet metal box body 201 is provided with a heat insulating felt. A sheet metal rear shell 202 is connected to the outer wall of one side of the sheet metal box body 201 by rivets. Two box doors 203 are hinged on the outer wall of one side of the sheet metal box body 201. A waste heat recovery mechanism 3 is provided in the sheet metal box body 201. The waste heat recovery mechanism 3 includes a fixing block 301 fixed on the inner wall of the middle part of the sheet metal box body 201, a heat exchange cylinder 3 fixed in the fixing block 301, and a heat exchange cylinder 3 fixed in the fixing block 301. 02. The heat exchange tube 304 with both ends respectively passing through and fixed on the outer wall of one side of the heat exchange tube 302, and the condensate recovery tube 305 with both ends respectively passing through and fixed on the outer wall of one side of the heat exchange tube 302. The heat exchange tube 302 is made of heat-insulating material. A liquid inlet pipe is fixed on the upper inner wall of one side of the heat exchange tube 302, and a liquid discharge pipe is fixed on the bottom inner wall of the heat exchange tube 302. An opening is opened on the outer wall of one side of the heat exchange tube 302, and an observation window is embedded in the opening. Two support seats 303 are connected to the inner wall of the bottom of the sheet metal box 201 by bolts, and the bottom of the heat exchange tube 302 is fixed on the outer wall of the top of the two support seats 303.

[0032] Example 2, reference Figure 5 , a condensate recovery and circulation device for an assembled heat exchange unit, further comprising a transmission mechanism 4, which comprises a transmission motor 402 connected to the top outer wall of a sheet metal box 201 by bolts, a rotating shaft 403 connected to the outer wall of the bottom end of the output shaft of the transmission motor 402 by a coupling, a driving gear 404 fixed on the outer wall of the rotating shaft 403, and a mounting plate 405 fixed on the upper inner wall of the heat exchange cylinder 302. A mounting bracket 401 is fixed on the top outer wall of the heat exchange cylinder 302, the top of the mounting bracket 401 abuts against the top inner wall of the sheet metal box 201, and the bottom end of the rotating shaft 403 penetrates It is connected to the bottom outer wall of the mounting plate 405 through a bearing. Two stirring assemblies 5 are provided on the mounting plate 405. The stirring assembly 5 includes a transmission shaft 501 that passes through and is connected to the top outer wall of the mounting plate 405 through a bearing, a driven gear 502 fixed on the upper outer wall of the transmission shaft 501, and a number of stirring blades 503 respectively fixed on the outer wall of the transmission shaft 501. The driven gear 502 and the driving gear 404 are engaged with each other to form a transmission fit. A fixed plate 6 is fixed on the lower inner wall of the heat exchange cylinder 302. The bottom end of the transmission shaft 501 passes through and is connected to the bottom outer wall of the fixed plate 6 through a bearing.

[0033] Example 3, reference Figure 6-7, a condensate recovery and circulation device for an assembled heat exchange unit, further comprising an installation mechanism 7, the installation mechanism 7 comprising a lower filter cartridge 701 with a return pipe fixed on the bottom inner wall, a connecting frame 703 fixed on the top outer wall of the lower filter cartridge 701, and an upper filter cartridge 704 fixed on the top outer wall of the connecting frame 703, two support plates 702 fixed on the top outer wall of the base 1, the bottom of the lower filter cartridge 701 is respectively fixed on the top outer walls of the two support plates 702, and a delivery pipe 70 is fixed on the top inner wall of the upper filter cartridge 704 5. Connecting pipes are fixedly provided on the outer walls of both ends of the heat exchange tube 304 and the condensed water recovery pipe 305. The delivery pipe 705 is connected to the outer wall of the connecting pipe at the upper end of the condensed water recovery pipe 305 through a flange. A filter assembly 8 is provided in the connecting frame 703. The filter assembly 8 includes a mounting frame 801 slidably mounted in the connecting frame 703 and three filter screens 803 respectively embedded in the mounting frame 801. A mounting block 802 is fixedly provided on the outer wall of one side of the mounting frame 801. The mounting block 802 is connected to the outer wall of one side of the connecting frame 703 by bolts.

[0034] Working principle: The condensed water in the heat exchange unit is input into the lower end of the condensed water recovery pipe 305. The condensed water rises in the condensed water recovery pipe 305 and exchanges heat with the heat exchange fluid in the heat exchange cylinder 302. The heat exchange fluid exchanges heat with the heat exchange fluid in the heat exchange pipe 304 again, and then the heat of the condensed water is exchanged to the heat exchange fluid in the heat exchange pipe 304, and the heat is reused. The output shaft of the transmission motor 402 drives the rotating shaft 403 and the driving gear 404 to rotate, and the driving gear 404 drives the two driven gears 502, the two transmission shafts 501 and a number of stirring blades 503 to rotate, and the stirring The mixing blades 503 stir the heat exchange liquid in the heat exchange cylinder 302, so that the heat exchange liquid fully contacts the condensate recovery pipe 305 and the heat exchange pipe 304 and performs heat exchange. The delivery pipe 705 delivers the condensed water after heat exchange to the upper filter cylinder 704, and the condensed water drips onto the filter screen 803. The three groups of filter screens 803 filter the impurities in the condensed water. The filtered condensed water is delivered to the heat exchange unit again through the return pipe. The mounting frame 801 and the filter screen 803 can be removed by removing the bolts on the fixing block 802, and the impurities remaining on the filter screen 803 can be cleaned.

[0035] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A condensate recovery and circulation device for an assembled heat exchange unit, comprising a base (1) and an installation box (2), characterized in that: The installation box (2) comprises a sheet metal box body (201) connected to the top outer wall of the base (1) by bolts; A waste heat recovery mechanism (3) is provided in the sheet metal box (201), and the waste heat recovery mechanism (3) comprises a fixed block (301) fixed on the inner wall of the middle portion of the sheet metal box (201), a heat exchange tube (302) fixed in the fixed block (301), a heat exchange tube (304) with both ends respectively passing through and fixed on the outer wall of one side of the heat exchange tube (302), and a condensed water recovery tube (305) with both ends respectively passing through and fixed on the outer wall of one side of the heat exchange tube (302); The heat exchange cylinder (302) is provided with a transmission mechanism (4), which comprises a transmission motor (402) connected to the top outer wall of the sheet metal box (201) by bolts, a rotating shaft (403) connected to the outer wall of the bottom end of the output shaft of the transmission motor (402) by a coupling, a driving gear (404) fixed on the outer wall of the rotating shaft (403), and a mounting plate (405) fixed on the upper inner wall of the heat exchange cylinder (302); Two stirring assemblies (5) are provided on the mounting plate (405), and the stirring assemblies (5) include a transmission shaft (501) penetrating and connected to the top outer wall of the mounting plate (405) via a bearing, a driven gear (502) fixed on the upper outer wall of the transmission shaft (501), and a plurality of stirring blades (503) respectively fixed on the outer wall of the transmission shaft (501); A mounting mechanism (7) is provided on the top of the base (1), and the mounting mechanism (7) comprises a lower filter cartridge (701) with a return pipe fixed on the inner wall of the bottom, a connecting frame (703) fixed on the outer wall of the top end of the lower filter cartridge (701), and an upper filter cartridge (704) fixed on the outer wall of the top end of the connecting frame (703); A filter assembly (8) is provided in the connecting frame (703), and the filter assembly (8) comprises a mounting frame (801) slidably mounted in the connecting frame (703) and three filter screens (803) respectively embedded in the mounting frame (801).

2. The condensate recovery and circulation equipment for an assembled heat exchange unit according to claim 1, characterized in that: A sheet metal rear shell (202) is connected to an outer wall of one side of the sheet metal box (201) via rivets, and two box doors (203) are hingedly connected to an outer wall of one side of the sheet metal box (201).

3. The condensate recovery and circulation equipment for an assembled heat exchange unit according to claim 1, characterized in that: A liquid inlet pipe is fixedly provided on the upper inner wall of one side of the heat exchange tube (302), and a liquid discharge pipe is fixedly provided on the bottom inner wall of the heat exchange tube (302). An opening is provided on the outer wall of one side of the heat exchange tube (302), and an observation window is embedded in the opening. Two support seats (303) are connected to the bottom inner wall of the sheet metal box (201) by bolts, and the bottom of the heat exchange tube (302) is fixedly provided on the top outer walls of the two support seats (303).

4. The condensate recovery and circulation equipment for an assembled heat exchange unit according to claim 1, characterized in that: A mounting bracket (401) is fixedly provided on the top outer wall of the heat exchange cylinder (302), and the top of the mounting bracket (401) abuts against the top inner wall of the sheet metal box (201). The bottom end of the rotating shaft (403) passes through and is connected to the bottom outer wall of the mounting plate (405) through a bearing.

5. The condensate recovery and circulation equipment for an assembled heat exchange unit according to claim 1, characterized in that: The driven gear (502) and the driving gear (404) mesh with each other to form a transmission fit. A fixed plate (6) is fixed on the lower inner wall of the heat exchange cylinder (302), and the bottom end of the transmission shaft (501) passes through and is connected to the bottom outer wall of the fixed plate (6) through a bearing.

6. The condensate recovery and circulation equipment for an assembled heat exchange unit according to claim 1, characterized in that: Two support plates (702) are fixed on the top outer wall of the base (1), and the bottom of the lower filter cylinder (701) is fixed on the top outer walls of the two support plates (702), respectively. A delivery pipe (705) is fixed on the top inner wall of the upper filter cylinder (704), and connecting pipes are fixed on the outer walls of both ends of the heat exchange pipe (304) and the condensate recovery pipe (305), and the delivery pipe (705) is connected to the outer wall of the connecting pipe at the upper end of the condensate recovery pipe (305) through a flange.

7. The condensate recovery and circulation equipment for an assembled heat exchange unit according to claim 1, characterized in that: A mounting block (802) is fixedly provided on the outer wall of one side of the mounting frame (801), and the mounting block (802) is connected to the outer wall of one side of the connecting frame (703) by means of bolts.

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